/* ==========================================================================
   Taimir Aguacil - Premium Portfolio v3.0
   Neural Network Hero | Terminal System | Silver Chrome Palette
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ==========================================================================
   CSS Variables
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Gold Executive Palette */
    --accent-primary: #D4AF37;
    --accent-primary-light: #F0C84A;
    --accent-primary-dark: #A07820;
    --accent-secondary: #FEF3C7;
    --accent-glow: rgba(212, 175, 55, 0.5);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #D4AF37 0%, #A07820 100%);
    --gradient-glow: linear-gradient(135deg, rgba(212, 175, 55, 0.3) 0%, rgba(160, 120, 32, 0.3) 100%);
    --gradient-text: linear-gradient(135deg, #F0C84A 0%, #D4AF37 50%, #A07820 100%);

    /* Typography */
    --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-2xl: 8rem;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;
}

/* Dark Theme (Default) */
[data-theme="dark"] {
    --bg-primary: #0A0A0F;
    --bg-secondary: #111118;
    --bg-tertiary: #1A1A24;
    --bg-card: rgba(255, 255, 255, 0.02);
    --bg-card-hover: rgba(255, 255, 255, 0.05);

    --text-primary: #E2E8F0;
    --text-secondary: #94A3B8;
    --text-muted: #7B8DB0;

    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-strong: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-light: rgba(255, 255, 255, 0.15);

    --terminal-bg: rgba(10, 10, 15, 0.95);
    --terminal-border: rgba(212, 175, 55, 0.3);
    --terminal-text: #D4AF37;
    --terminal-text-dim: #A07820;

    --shadow-glow: 0 0 60px rgba(212, 175, 55, 0.15);
    --shadow-glow-strong: 0 0 80px rgba(212, 175, 55, 0.25);

    --logo-filter: brightness(0) invert(1);
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #FAFBFC;
    --bg-secondary: #F8F4EC;
    --bg-tertiary: #F0E8D0;
    --bg-card: rgba(255, 255, 255, 0.8);
    --bg-card-hover: rgba(255, 255, 255, 0.95);

    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #4A5568;

    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-bg-strong: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-border-light: rgba(0, 0, 0, 0.12);

    --terminal-bg: rgba(10, 10, 15, 0.95);
    --terminal-border: rgba(212, 175, 55, 0.4);
    --terminal-text: #D4AF37;
    --terminal-text-dim: #A07820;

    --shadow-glow: 0 0 60px rgba(212, 175, 55, 0.1);
    --shadow-glow-strong: 0 0 80px rgba(212, 175, 55, 0.2);

    --logo-filter: none;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-medium), color var(--transition-medium);
}

::selection {
    background: var(--accent-primary);
    color: var(--bg-primary);
}

/* Visually hidden but accessible to screen readers */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip navigation link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 9999;
    padding: 0.75rem 1.25rem;
    background: var(--accent-primary);
    color: var(--bg-primary);
    font-weight: 600;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: top 0.2s;
}
.skip-link:focus {
    top: 1rem;
}

/* Global focus styles */
:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 3px;
    border-radius: 3px;
}
/* Remove focus ring for mouse users, keep for keyboard */
:focus:not(:focus-visible) {
    outline: none;
}

/* ==========================================================================
   Background Effects
   ========================================================================== */
.bg-gradient-animated {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -3;
    background:
        radial-gradient(ellipse 60% 40% at 20% 30%, rgba(148, 163, 184, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse 40% 30% at 80% 70%, rgba(100, 116, 139, 0.04) 0%, transparent 50%);
}

.bg-noise {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -2;
    opacity: 0.02;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -1;
    background-image:
        linear-gradient(var(--glass-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--glass-border) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse 50% 50% at 50% 50%, black 20%, transparent 70%);
    opacity: 0.4;
}

/* Cursor Glow */
.cursor-glow {
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(148, 163, 184, 0.15) 0%, transparent 70%);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
    opacity: 0;
}

[data-theme="light"] .cursor-glow {
    background: radial-gradient(circle, rgba(30, 41, 59, 0.18) 0%, transparent 70%);
}

@media (hover: hover) {
    .cursor-glow { opacity: 1; }
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(3rem, 8vw, 5.5rem); font-weight: 700; }
h2 { font-size: clamp(2rem, 5vw, 3.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.lead-text {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-lg) 0;
    position: relative;
}

/* Section Header */
.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-header.centered {
    text-align: center;
}

.section-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
    padding: 0.5rem 1rem;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-full);
}

.section-title {
    margin-bottom: var(--spacing-sm);
}

.title-line {
    display: block;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Timeline Toggle
   ========================================================================== */
.timeline-toggle {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    max-width: 500px;
    margin: 0 auto var(--spacing-md);
    padding: 0.75rem 1.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 5;
    animation: timelineAttention 2.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes timelineAttention {
    0%, 100% {
        border-color: var(--glass-border);
        box-shadow: none;
    }
    50% {
        border-color: rgba(212, 175, 55, 0.5);
        box-shadow: 0 0 24px rgba(212, 175, 55, 0.15);
    }
}

.timeline-toggle:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    box-shadow: 0 0 20px var(--accent-glow);
    animation: none;
}

.timeline-toggle[aria-expanded="true"] {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    background: rgba(212, 175, 55, 0.08);
    animation: none;
}

.timeline-toggle-line {
    flex: 1;
    height: 1px;
    background: var(--glass-border);
    transition: background 0.3s ease;
}

.timeline-toggle:hover .timeline-toggle-line,
.timeline-toggle[aria-expanded="true"] .timeline-toggle-line {
    background: var(--accent-primary);
}

.timeline-toggle-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    white-space: nowrap;
}

.timeline-toggle-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-toggle[aria-expanded="true"] .timeline-toggle-icon {
    transform: rotate(180deg);
}

.timeline-collapsible {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-collapsible.open {
    grid-template-rows: 1fr;
    opacity: 1;
}

.timeline-collapsible > * {
    overflow: hidden;
    min-height: 0;
}

/* ==========================================================================
   Tab Content Toggle Animation
   ========================================================================== */
.tab-content {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-content.active {
    grid-template-rows: 1fr;
    opacity: 1;
}

.tab-content > * {
    overflow: hidden;
    min-height: 0;
}

/* ==========================================================================
   Glass Card Component
   ========================================================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-medium);
}

.glass-card:hover {
    background: var(--glass-bg-strong);
    border-color: var(--glass-border-light);
    transform: translateY(-4px);
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--accent-primary) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-medium);
    pointer-events: none;
    mix-blend-mode: overlay;
}

.glass-card:hover .card-glow {
    opacity: 0.03;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: all var(--transition-medium);
}

.nav.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0.75rem 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.nav-logo {
    position: relative;
    text-decoration: none;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-md);
    overflow: hidden;
    color: var(--accent-primary);
    display: flex;
    align-items: center;
}

.logo-mark {
    width: 36px;
    height: 36px;
    display: block;
    transition: transform var(--transition-medium);
}

.nav-logo:hover .logo-mark {
    transform: rotate(30deg);
}

.nav-logo:hover .logo-glow {
    opacity: 1;
}

.logo-glow {
    position: absolute;
    inset: 0;
    background: var(--gradient-glow);
    opacity: 0;
    transition: opacity var(--transition-medium);
    z-index: -1;
    border-radius: inherit;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.25rem;
}

.nav-link {
    display: block;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--glass-bg);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-medium);
    transform: translateX(-50%);
    border-radius: var(--radius-full);
}

.nav-link:hover::after {
    width: 50%;
}

/* Theme Toggle */
.theme-toggle {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    padding: 0.25rem;
    cursor: pointer;
    transition: all var(--transition-medium);
}

.theme-toggle:hover {
    border-color: var(--accent-primary);
}

.theme-toggle-track {
    position: relative;
    width: 56px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6px;
}

.theme-icon {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
    transition: color var(--transition-fast);
    z-index: 1;
}

.theme-toggle-thumb {
    position: absolute;
    width: 22px;
    height: 22px;
    background: var(--accent-primary);
    border-radius: 50%;
    left: 3px;
    transition: transform var(--transition-bounce);
    box-shadow: 0 2px 8px var(--accent-glow);
}

[data-theme="dark"] .theme-toggle-thumb {
    transform: translateX(28px);
}

[data-theme="dark"] .theme-icon-dark { color: var(--text-primary); }
[data-theme="light"] .theme-icon-light { color: var(--text-primary); }

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-medium);
}

/* Hidden SVG filter element */
.liquid-filter-defs {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
    pointer-events: none;
}

@media (max-width: 1024px) {
    /* Nav bar: solid background, NO backdrop-filter here — ever.
       backdrop-filter on any ancestor creates a new containing block
       for position:fixed children, collapsing the menu height.
       This applies to both the default state AND .nav.scrolled. */
    .nav,
    .nav.scrolled {
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    [data-theme="light"] .nav,
    [data-theme="light"] .nav.scrolled {
        background: rgba(250, 251, 252, 0.97);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    }

    .nav-toggle { display: flex; }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        align-items: center;
        overflow: hidden;

        /* Liquid glass — backdrop-filter is safe here since nav-menu
           has no fixed children of its own */
        background: rgba(8, 8, 13, 0.6);
        backdrop-filter: blur(48px) saturate(180%) brightness(0.88);
        -webkit-backdrop-filter: blur(48px) saturate(180%) brightness(0.88);

        /* Glass edge & depth */
        border-top: 1px solid rgba(255, 255, 255, 0.07);
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.06),
            inset 0 -1px 0 rgba(0, 0, 0, 0.3),
            0 -8px 60px rgba(0, 0, 0, 0.5);

        padding: var(--spacing-md);
        gap: 0.5rem;
        transform: translateX(100%);
        transition: transform var(--transition-medium);
    }

    /* Gold refraction line at top edge */
    .nav-menu::before {
        content: '';
        position: absolute;
        top: 0;
        left: 8%;
        right: 8%;
        height: 1px;
        background: linear-gradient(
            90deg,
            transparent 0%,
            rgba(255, 255, 255, 0.08) 20%,
            rgba(212, 175, 55, 0.45) 50%,
            rgba(255, 255, 255, 0.08) 80%,
            transparent 100%
        );
        pointer-events: none;
        z-index: 1;
    }

    /* Iridescent ambient glow */
    .nav-menu::after {
        content: '';
        position: absolute;
        inset: 0;
        background:
            radial-gradient(ellipse 80% 45% at 20% 0%, rgba(212, 175, 55, 0.08) 0%, transparent 55%),
            radial-gradient(ellipse 60% 35% at 80% 100%, rgba(100, 120, 200, 0.05) 0%, transparent 55%);
        pointer-events: none;
        z-index: 0;
    }

    /* Keep nav items above pseudo-elements */
    .nav-menu li {
        position: relative;
        z-index: 1;
        width: 100%;
        display: flex;
        justify-content: center;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    [data-theme="light"] .nav-menu {
        background: rgba(245, 243, 238, 0.75);
        backdrop-filter: blur(48px) saturate(160%) brightness(1.05);
        -webkit-backdrop-filter: blur(48px) saturate(160%) brightness(1.05);
        border-top: 1px solid rgba(0, 0, 0, 0.06);
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.9),
            0 -8px 40px rgba(0, 0, 0, 0.08);
    }

    [data-theme="light"] .nav-menu::before {
        background: linear-gradient(
            90deg,
            transparent 0%,
            rgba(0, 0, 0, 0.04) 20%,
            rgba(212, 175, 55, 0.35) 50%,
            rgba(0, 0, 0, 0.04) 80%,
            transparent 100%
        );
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

}

/* Hero responsive */
@media (max-width: 1100px) {
    .hero-inner {
        gap: 2.5rem;
    }
    .hero-visual {
        flex: 0 0 300px;
    }
    .brain-display {
        width: 280px;
        height: 280px;
    }
}

@media (max-width: 860px) {
    .hero-inner {
        flex-direction: column;
        text-align: center;
        gap: 2.5rem;
    }
    .hero-content {
        text-align: center;
        flex: none;
    }
    .hero-title-wrapper {
        justify-content: center;
    }
    .hero-cta {
        justify-content: center;
    }
    .hero-stats {
        justify-content: center;
    }
    .hero-visual {
        flex: none;
        order: -1;
    }
    .brain-display {
        width: 280px;
        height: 280px;
    }
    .hero-description {
        max-width: 600px;
        margin: 0 auto var(--spacing-lg);
    }
}

/* ==========================================================================
   Hero Section - Neural Network
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: var(--spacing-2xl) max(var(--spacing-md), 5vw);
}

.hero-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    max-width: 1280px;
    width: 100%;
    position: relative;
    z-index: 10;
}

/* Neural Network Canvas */
.neural-network-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* Hero Orbs - subtle ambient */
.hero-orbs {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    animation: orbFloat 25s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.15) 0%, transparent 70%);
    top: -15%;
    left: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(100, 116, 139, 0.12) 0%, transparent 70%);
    top: 50%;
    right: -10%;
    animation-delay: -8s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    bottom: -10%;
    left: 30%;
    animation-delay: -16s;
}

.orb-4 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(100, 116, 139, 0.08) 0%, transparent 70%);
    top: 30%;
    left: 50%;
    animation-delay: -20s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(20px, -20px) scale(1.03); }
    50% { transform: translate(-15px, 15px) scale(0.97); }
    75% { transform: translate(15px, 20px) scale(1.01); }
}

/* Hidden SVG lines - replaced by canvas */
.hero-lines { display: none; }
.particles { display: none; }

/* Hero Content */
.hero-content {
    position: relative;
    z-index: 10;
    text-align: left;
    flex: 0 1 580px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(34, 197, 94, 0.5);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.badge-text {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.hero-greeting {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    animation: fadeInUp 0.8s ease 0.1s forwards;
    opacity: 0;
}

.hero-name {
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 700;
    line-height: 0.95;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
    background: linear-gradient(180deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title-wrapper {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 1rem;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease 0.3s forwards;
    opacity: 0;
}

.hero-title-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-primary);
    padding: 0.25rem 0.75rem;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-full);
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 600;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 540px;
    margin: 0 0 var(--spacing-lg);
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: flex-start;
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.5s forwards;
    opacity: 0;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

.stat-item {
    text-align: center;
}

.stat-prefix {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent-primary-light);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.stat-suffix {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent-primary-light);
}

.stat-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--glass-border);
}

@media (max-width: 640px) {
    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: 0.75rem;
    }
    .stat-divider {
        display: none;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---- Hero Visual (Brain Image) ---- */
.hero-visual {
    flex: 0 0 380px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 10;
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.brain-display {
    position: relative;
    width: 460px;
    height: 460px;
    border-radius: 50%;
    animation: brainFloat 7s ease-in-out infinite;
    box-shadow:
        0 0 0 1px rgba(212, 175, 55, 0.2),
        0 0 60px rgba(212, 175, 55, 0.2),
        0 0 120px rgba(212, 175, 55, 0.08);
}


.hero-brain-img {
    width: 660px;
    height: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: block;
    filter: saturate(1.2) brightness(1.05);
}

.brain-glow-ring {
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    border: 1.5px solid rgba(212, 175, 55, 0.4);
    animation: brainRingPulse 3s ease-in-out infinite;
    pointer-events: none;
}

.brain-glow-ring::before {
    content: '';
    position: absolute;
    inset: 6px;
    border-radius: 50%;
    border: 1px solid rgba(212, 175, 55, 0.2);
    animation: brainRingPulse 3s ease-in-out infinite 0.5s;
}

@keyframes brainFloat {
    0%, 100% { transform: translateY(0) rotate(0deg) scale(1); }
    30%       { transform: translateY(-18px) rotate(1.5deg) scale(1.01); }
    60%       { transform: translateY(-8px) rotate(-1deg) scale(0.99); }
    80%       { transform: translateY(-14px) rotate(0.5deg) scale(1.005); }
}

@keyframes brainRingPulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50%       { opacity: 0.8; transform: scale(1.03); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: fixed;
    bottom: 2rem;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: fadeInUp 0.8s ease 0.8s forwards;
    opacity: 0;
    pointer-events: none;
    z-index: 50;
    transition: opacity 0.4s ease;
}

.scroll-indicator.hidden {
    opacity: 0 !important;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent-primary), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.5; }
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-muted);
}

@media (max-width: 1024px) {
    .scroll-indicator { display: none; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-primary);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-ghost {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-ghost:hover {
    background: var(--glass-bg-strong);
    border-color: var(--accent-primary);
}

.btn-glow::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-primary);
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    filter: blur(15px);
    transition: opacity var(--transition-medium);
}

.btn-glow:hover::before {
    opacity: 0.5;
}

.btn-shimmer {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    100% { left: 100%; }
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1rem;
}

.btn-icon {
    display: flex;
    align-items: center;
}

.btn-icon svg {
    width: 18px;
    height: 18px;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about {
    padding-top: var(--spacing-md);
}

.about-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

.about-image-container {
    position: sticky;
    top: 120px;
}

@media (max-width: 1024px) {
    .about-image-container {
        position: static;
        top: auto;
    }
}

.about-image-wrapper {
    position: relative;
}

.about-image-glow {
    position: absolute;
    inset: -20px;
    background: var(--gradient-glow);
    border-radius: var(--radius-2xl);
    filter: blur(40px);
    opacity: 0.5;
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.3; transform: scale(1.05); }
}

.about-image-frame {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    border: 1px solid var(--glass-border);
}

.about-image {
    width: 100%;
    height: auto;
    display: block;
}

.about-image-badge {
    position: absolute;
    bottom: -10px;
    right: -10px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--gradient-primary);
    color: var(--bg-primary);
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.about-image-badge svg {
    width: 16px;
    height: 16px;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.about-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* Expertise Section */
.expertise-section {
    padding-top: var(--spacing-md);
}

.expertise-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.expertise-title svg {
    width: 24px;
    height: 24px;
    color: var(--accent-primary);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (max-width: 640px) {
    .expertise-grid { grid-template-columns: 1fr; }
}

.expertise-card {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.expertise-card:hover {
    background: var(--glass-bg-strong);
    border-color: rgba(212, 175, 55, 0.3);
    transform: translateY(-2px);
}

.expertise-card:hover .expertise-glow {
    opacity: 0.1;
}

.expertise-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
}

.expertise-icon svg {
    width: 24px;
    height: 24px;
}

.expertise-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.expertise-content p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

.expertise-glow {
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: var(--accent-primary);
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

/* Expertise hover hint */
.expertise-hint {
    text-align: center;
    margin-top: var(--spacing-sm);
    animation: hintPulse 2.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.expertise-hint-inner {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(212, 175, 55, 0.08);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-primary);
}

.expertise-hint-inner svg {
    width: 14px;
    height: 14px;
}

/* ==========================================================================
   Quote Section
   ========================================================================== */
.quote-section {
    position: relative;
    padding: var(--spacing-lg) 0;
    overflow: hidden;
}

.quote-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.quote-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(148, 163, 184, 0.03) 0%, rgba(100, 116, 139, 0.03) 100%);
}

.quote-block {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
}

.quote-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.quote-icon svg {
    width: 32px;
    height: 32px;
    color: var(--bg-primary);
}

.quote-text {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 500;
    line-height: 1.4;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.quote-text strong {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.quote-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.quote-line {
    width: 40px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.quote-footer cite {
    font-style: normal;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ==========================================================================
   Timeline (Experience)
   ========================================================================== */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--glass-border);
    transform: translateX(-50%);
}

.timeline-progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0;
    background: var(--gradient-primary);
    transition: height 0.3s ease;
    box-shadow: 0 0 20px var(--accent-glow);
}

.timeline-items {
    position: relative;
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 50%;
    padding-left: 0;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.timeline-item.right {
    justify-content: flex-start;
    padding-left: 50%;
    padding-right: 0;
}

@media (max-width: 768px) {
    .timeline-line { left: 20px; }
    .timeline-item,
    .timeline-item.right {
        justify-content: flex-start;
        padding-left: 60px;
        padding-right: 0;
    }
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

@media (max-width: 768px) {
    .timeline-marker { left: 20px; }
}

.timeline-dot {
    width: 16px;
    height: 16px;
    background: var(--bg-primary);
    border: 3px solid var(--accent-primary);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--accent-glow);
    transition: all var(--transition-medium);
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.3);
    background: var(--accent-primary);
}

.timeline-card {
    max-width: 450px;
    padding: 1.5rem;
    margin-right: var(--spacing-md);
}

.timeline-item.right .timeline-card {
    margin-right: 0;
    margin-left: var(--spacing-md);
}

@media (max-width: 768px) {
    .timeline-card,
    .timeline-item.right .timeline-card {
        max-width: 100%;
        margin-right: 0;
        margin-left: 0;
    }
}

.timeline-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.company-logo {
    flex-shrink: 0;
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 0.6rem;
}

.company-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: var(--logo-filter);
}

.company-info h3 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.company-info h3 a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.company-info h3 a:hover {
    color: var(--accent-primary);
}

.company-info .role {
    display: block;
    font-size: 0.9rem;
    color: var(--accent-primary);
    font-weight: 500;
}

.timeline-period {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    padding: 0.25rem 0.75rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
}

.timeline-period svg {
    width: 14px;
    height: 14px;
}

.timeline-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--accent-primary);
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.tag:hover {
    background: rgba(212, 175, 55, 0.2);
}

/* ==========================================================================
   Projects Grid
   ========================================================================== */
/* ==========================================================================
   Display Cards Navigation (replaces tab buttons)
   ========================================================================== */
.display-cards-nav {
    display: grid;
    grid-template-areas: 'stack';
    place-items: center;
    min-height: 20rem;
    margin-bottom: var(--spacing-sm);
    overflow: visible;
}

.display-card-item {
    grid-area: stack;
    position: relative;
    width: 22rem;
    height: 9rem;
    border-radius: var(--radius-xl);
    border: 2px solid var(--glass-border);
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
    transition: transform 0.5s ease, filter 0.5s ease, border-color 0.4s ease;
    filter: grayscale(100%);
    user-select: none;
}

/* Right-edge gradient bleed (hides overlap between stacked cards) */
.display-card-item::after {
    content: '';
    position: absolute;
    top: -5%;
    right: -1px;
    width: 20rem;
    height: 110%;
    background: linear-gradient(to left, var(--bg-primary), transparent);
    pointer-events: none;
    border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
}

/* Dim overlay on back/mid cards */
.display-card-item::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    background: var(--bg-primary);
    opacity: 0.5;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

/* All child rows */
.dc-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    position: relative;
    z-index: 1;
}

.display-card-item > p {
    position: relative;
    z-index: 1;
    margin: 0;
}

.dc-icon-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    background: rgba(212, 175, 55, 0.2);
    flex-shrink: 0;
}

.dc-icon-wrap svg {
    width: 1rem;
    height: 1rem;
    color: var(--accent-primary);
}

.dc-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin: 0;
}

.dc-desc {
    font-size: 0.95rem;
    color: var(--text-primary);
    white-space: nowrap;
}

.dc-meta {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

/* --- Position 1: Back-left --- */
.display-card-item[data-position="1"] {
    z-index: 1;
    transform: translateX(0) translateY(0) skewY(-8deg);
}
.display-card-item[data-position="1"]:hover {
    filter: grayscale(0%);
    transform: translateX(0) translateY(-2.5rem) skewY(-8deg);
}
.display-card-item[data-position="1"]:hover::before { opacity: 0; }

/* --- Position 2: Middle --- */
.display-card-item[data-position="2"] {
    z-index: 2;
    transform: translateX(4rem) translateY(2.5rem) skewY(-8deg);
}
.display-card-item[data-position="2"]:hover {
    filter: grayscale(0%);
    transform: translateX(4rem) translateY(-0.25rem) skewY(-8deg);
}
.display-card-item[data-position="2"]:hover::before { opacity: 0; }

/* --- Position 3: Front (active) --- */
.display-card-item[data-position="3"] {
    z-index: 3;
    transform: translateX(8rem) translateY(5rem) skewY(-8deg);
    filter: grayscale(0%);
    border-color: rgba(212, 175, 55, 0.5);
}
.display-card-item[data-position="3"]::before { opacity: 0; pointer-events: none; }
.display-card-item[data-position="3"]:hover {
    transform: translateX(8rem) translateY(2.5rem) skewY(-8deg);
}

/* Click hint on front card */
.display-cards-hint {
    text-align: center;
    margin-top: 2rem;
    margin-bottom: var(--spacing-md);
    animation: hintPulse 2.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    transition: opacity 0.4s ease;
}

.display-cards-hint.hidden {
    opacity: 0;
    pointer-events: none;
    animation: none;
}

.display-cards-hint-inner {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(212, 175, 55, 0.08);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-primary);
}

.display-cards-hint-inner svg {
    width: 14px;
    height: 14px;
    animation: hintTap 2.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes hintPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes hintTap {
    0%, 100% { transform: translateY(0); }
    20% { transform: translateY(3px); }
    40% { transform: translateY(0); }
    50% { transform: translateY(3px); }
    70% { transform: translateY(0); }
}

/* Mobile: render as classic pill tab buttons */
@media (max-width: 640px) {
    .display-cards-nav {
        display: flex;
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.5rem;
        min-height: auto;
        margin-bottom: var(--spacing-lg);
    }
    .display-card-item {
        width: auto;
        height: auto;
        min-height: unset;
        transform: none !important;
        filter: grayscale(0%) !important;
        border-radius: var(--radius-full);
        padding: 0.6rem 1.1rem;
        flex-direction: row;
        align-items: center;
        justify-content: center;
        gap: 0.4rem;
        border-width: 1px;
    }
    .display-card-item::before,
    .display-card-item::after { display: none; }
    /* Active tab: gold fill */
    .display-card-item[data-position="3"] {
        background: var(--gradient-primary);
        border-color: transparent;
        box-shadow: 0 4px 16px var(--accent-glow);
    }
    .display-card-item[data-position="3"] .dc-title,
    .display-card-item[data-position="3"] .dc-icon-wrap svg {
        color: var(--bg-primary);
    }
    .display-card-item[data-position="3"] .dc-icon-wrap {
        background: rgba(0, 0, 0, 0.15);
    }
    .dc-desc, .dc-meta { display: none; }
    .dc-title { font-size: 0.85rem; }
    .dc-icon-wrap { width: 1.4rem; height: 1.4rem; }
    .dc-icon-wrap svg { width: 0.85rem; height: 0.85rem; }
}

/* Enter: each card rises from below with blur */
@keyframes tabCardIn {
    from {
        opacity: 0;
        transform: translateY(32px) scale(0.96);
        filter: blur(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

.tab-content.active .project-card {
    animation: tabCardIn 0.44s cubic-bezier(0.22, 1, 0.36, 1) both;
}

/* Stagger each card in visual reading order */
.tab-content.active .project-card:nth-child(1) { animation-delay:   0ms; }
.tab-content.active .project-card:nth-child(2) { animation-delay:  60ms; }
.tab-content.active .project-card:nth-child(3) { animation-delay: 120ms; }
.tab-content.active .project-card:nth-child(4) { animation-delay: 180ms; }
.tab-content.active .project-card:nth-child(5) { animation-delay: 240ms; }
.tab-content.active .project-card:nth-child(6) { animation-delay: 300ms; }

@media (prefers-reduced-motion: reduce) {
    .tab-content.active .project-card { animation: none; }
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .projects-grid { grid-template-columns: 1fr; }
}

.project-card {
    padding: 1.5rem;
    cursor: pointer;
}

.project-card-large {
    grid-column: span 2;
}

@media (max-width: 768px) {
    .project-card-large { grid-column: span 1; }
}

.project-card-inner {
    position: relative;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.project-title-area h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.project-subtitle {
    display: block;
    font-size: 0.9rem;
    color: var(--accent-primary);
    font-weight: 500;
}

.project-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.project-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: var(--text-muted);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.project-link:hover {
    color: var(--accent-primary);
    border-color: rgba(212, 175, 55, 0.3);
}

.project-link svg {
    width: 18px;
    height: 18px;
}

.project-status {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-active {
    color: #22c55e;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.status-completed {
    color: var(--text-muted);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}

.project-company {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.project-preview {
    margin-bottom: 1rem;
}

.project-preview p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.project-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--accent-primary);
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-full);
}

/* Light mode: darken tag text for contrast against light backgrounds */
[data-theme="light"] .tag,
[data-theme="light"] .skill-tag {
    color: #7C5A00;
    background: rgba(212, 175, 55, 0.12);
    border-color: rgba(160, 120, 32, 0.35);
}

.project-expand-icon {
    position: absolute;
    bottom: 0;
    right: 0;
    color: var(--text-muted);
    transition: transform var(--transition-medium);
}

.project-expand-icon svg {
    width: 20px;
    height: 20px;
}

.project-card.expanded .project-expand-icon {
    transform: rotate(180deg);
}

.project-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition-slow);
    padding-top: 0;
}

.project-card.expanded .project-details {
    max-height: 500px;
    padding-top: 1.5rem;
    border-top: 1px solid var(--glass-border);
    margin-top: 1rem;
}

.project-details p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.project-details strong {
    color: var(--text-primary);
}

.project-skills-full {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* ==========================================================================
   Academic Section
   ========================================================================== */
.academic-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 1024px) {
    .academic-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .academic-grid { grid-template-columns: 1fr; }
}

.academic-card {
    padding: 2rem;
    text-align: center;
    opacity: 0; /* hidden until dealt in */
}

/* ==========================================================================
   Evervault scramble — per-card on .expertise-card
   ========================================================================== */

/* Overlays bleed 2rem beyond card edges */
.ec-gradient {
    position: absolute;
    inset: -2rem;
    background: linear-gradient(135deg, var(--accent-primary-light), var(--accent-primary-dark));
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 1;
}

.ec-text {
    position: absolute;
    inset: -2rem;
    padding: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    line-height: 1.3;
    color: white;
    word-break: break-all;
    white-space: pre-wrap;
    overflow: hidden;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
    mix-blend-mode: overlay;
    z-index: 2;
}

/* On hover: fade out icon + text so the scramble takes over */
.expertise-icon,
.expertise-content {
    position: relative;
    z-index: 4;
    transition: opacity var(--transition-medium);
}

@media (hover: hover) {
    .expertise-card:hover .expertise-icon,
    .expertise-card:hover .expertise-content {
        opacity: 0;
    }
    .expertise-card:hover .ec-gradient,
    .expertise-card:hover .ec-text {
        opacity: 1;
    }
}

.expertise-card.is-active .expertise-icon,
.expertise-card.is-active .expertise-content {
    opacity: 0;
}

.expertise-card.is-active .ec-gradient,
.expertise-card.is-active .ec-text {
    opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
    .ec-gradient, .ec-text { transition: none; }
    .expertise-icon, .expertise-content { transition: none; }
}

/* ---- Deal-from-Deck entry animations ---- */
@keyframes dealFromTopLeft {
    0%   { opacity: 0; transform: translate(-70px, -90px) rotate(-14deg) scale(0.8);  }
    65%  { opacity: 1; transform: translate(5px, 5px)     rotate(2deg)   scale(1.02); }
    100% { opacity: 1; transform: translate(0, 0)         rotate(0deg)   scale(1);    }
}

@keyframes dealFromTop {
    0%   { opacity: 0; transform: translateY(-90px) scale(0.8);  }
    65%  { opacity: 1; transform: translateY(6px)   scale(1.02); }
    100% { opacity: 1; transform: translateY(0)     scale(1);    }
}

@keyframes dealFromTopRight {
    0%   { opacity: 0; transform: translate(70px, -90px)  rotate(14deg)  scale(0.8);  }
    65%  { opacity: 1; transform: translate(-5px, 5px)    rotate(-2deg)  scale(1.02); }
    100% { opacity: 1; transform: translate(0, 0)         rotate(0deg)   scale(1);    }
}

.academic-grid.is-dealing .academic-card:nth-child(1) {
    animation: dealFromTopLeft  0.65s cubic-bezier(0.22, 1, 0.36, 1)   0ms forwards;
}
.academic-grid.is-dealing .academic-card:nth-child(2) {
    animation: dealFromTop      0.65s cubic-bezier(0.22, 1, 0.36, 1) 110ms forwards;
}
.academic-grid.is-dealing .academic-card:nth-child(3) {
    animation: dealFromTopRight 0.65s cubic-bezier(0.22, 1, 0.36, 1) 220ms forwards;
}

@media (prefers-reduced-motion: reduce) {
    .academic-card { opacity: 1; }
    .academic-grid.is-dealing .academic-card { animation: none; }
}

.academic-card-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}

.academic-logo {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1rem;
}

.academic-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: var(--logo-filter);
}

.academic-info h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.academic-info .institution {
    margin: 0 0 0.5rem;
}

.academic-info .institution a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.academic-info .institution a:hover {
    color: var(--accent-primary-light);
}

.academic-info .years {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0;
}

.academic-info .years svg {
    width: 14px;
    height: 14px;
}

/* ==========================================================================
   Private / Gallery Section
   ========================================================================== */
.private-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.private-intro {
    padding: 2rem;
}

.name-pronunciation {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
}

.pronunciation-btn {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--bg-primary);
    cursor: pointer;
    transition: all var(--transition-medium);
}

.pronunciation-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.pronunciation-btn.playing {
    background: var(--accent-primary);
    color: var(--bg-primary);
    box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.6);
    animation: pronunciation-pulse 0.8s ease-in-out infinite;
}

@keyframes pronunciation-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.6); }
    70%  { box-shadow: 0 0 0 12px rgba(212, 175, 55, 0); }
    100% { box-shadow: 0 0 0 0 rgba(212, 175, 55, 0); }
}

.pronunciation-btn svg {
    width: 24px;
    height: 24px;
}

.pronunciation-text {
    display: flex;
    flex-direction: column;
}

.pronunciation-text .label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.pronunciation-text .phonetic {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.fun-fact {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 1rem;
}

.highlight-gold {
    color: var(--accent-primary);
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.15), rgba(212, 175, 55, 0.08));
    border: 1px solid rgba(212, 175, 55, 0.35);
    border-radius: 4px;
    padding: 0.1em 0.4em;
    text-decoration: none;
    font-weight: 600;
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.highlight-gold:hover {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.25), rgba(212, 175, 55, 0.15));
    border-color: rgba(212, 175, 55, 0.6);
}

.bio-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

@media (max-width: 1024px) {
    .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .gallery-grid { grid-template-columns: 1fr; }
}

.gallery-item {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-medium);
}

.gallery-item:hover {
    transform: scale(1.02);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(212, 175, 55, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
}

.gallery-icon svg {
    width: 24px;
    height: 24px;
}

.gallery-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact {
    position: relative;
    overflow: hidden;
}

.contact-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.contact-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.contact-orb.orb-1 {
    width: 400px;
    height: 400px;
    background: rgba(212, 175, 55, 0.15);
    top: -100px;
    left: -100px;
}

.contact-orb.orb-2 {
    width: 300px;
    height: 300px;
    background: rgba(100, 116, 139, 0.1);
    bottom: -50px;
    right: -50px;
}

.contact-content {
    position: relative;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: var(--spacing-lg);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-medium);
}

.social-link:hover {
    color: var(--accent-primary);
    border-color: rgba(212, 175, 55, 0.3);
    transform: translateY(-4px);
}

.social-link svg {
    width: 22px;
    height: 22px;
}

/* ==========================================================================
   Terminal Widget - Persistent Box + Chat
   ========================================================================== */
.terminal-widget {
    position: fixed;
    z-index: 1000;
    /* top/left set by JS — drag & snap */
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.terminal-widget.hero-overlap {
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
}

/* Snap animation — spring bounce */
.terminal-widget.is-snapping {
    transition:
        top 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
        left 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
        opacity 0.4s ease,
        transform 0.4s ease;
}

/* Dragging — no transitions, grab cursor */
.terminal-widget.is-dragging {
    transition: none !important;
    user-select: none;
}

/* Drag handle hint */
.terminal-box-header,
.chat-header {
    cursor: grab;
    touch-action: none;
}

.terminal-widget.is-dragging .terminal-box-header,
.terminal-widget.is-dragging .chat-header {
    cursor: grabbing;
}

/* Persistent Terminal Box */
.terminal-box {
    width: 300px;
    background: var(--terminal-bg);
    border: 1px solid var(--terminal-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(212, 175, 55, 0.1);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-medium);
    position: relative;
}

/* CRT Scanline on box */
.terminal-box::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 3px,
        rgba(0, 0, 0, 0.08) 3px,
        rgba(0, 0, 0, 0.08) 6px
    );
    pointer-events: none;
    z-index: 5;
}

.terminal-box:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 12px 50px rgba(0, 0, 0, 0.6), 0 0 50px rgba(212, 175, 55, 0.15);
    transform: translateY(-2px);
}

.terminal-widget.open .terminal-box {
    visibility: hidden;
    pointer-events: none;
}

.terminal-box-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid rgba(212, 175, 55, 0.15);
    background: rgba(0, 0, 0, 0.3);
}

.terminal-dots {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot-red { background: #FF5F57; }
.dot-yellow { background: #FFBD2E; }
.dot-green {
    background: #28C840;
    box-shadow: 0 0 8px rgba(40, 200, 64, 0.5);
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { box-shadow: 0 0 8px rgba(40, 200, 64, 0.5); }
    50% { box-shadow: 0 0 14px rgba(40, 200, 64, 0.8); }
}

.terminal-box-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--terminal-text);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    opacity: 0.8;
}

.terminal-box-body {
    padding: 1rem;
}

.terminal-identity {
    margin-bottom: 0.5rem;
}

.terminal-name {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-primary-light);
    margin-bottom: 0.15rem;
}

.terminal-role {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 700;
    color: #E2E8F0;
    letter-spacing: 0.05em;
}

.terminal-bio {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: #64748B;
    line-height: 1.5;
    margin: 0.5rem 0 0.75rem;
}

.terminal-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: #64748B;
    margin-top: 0.5rem;
}

.terminal-stats .stat-item {
    color: #94A3B8;
}

.terminal-stats .stat-item strong {
    color: var(--accent-primary);
    font-weight: 600;
}

.terminal-stats .stat-divider {
    color: #475569;
    opacity: 0.6;
}

.terminal-status {
    display: flex;
    align-items: center;
    gap: 0;
}

.terminal-prompt {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--terminal-text);
}

.terminal-cursor {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--terminal-text);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.terminal-box-footer {
    padding: 0 1rem 0.75rem;
}

.terminal-ask-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-md);
    color: var(--terminal-text);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    touch-action: manipulation;
    transition: all var(--transition-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.terminal-ask-btn:hover {
    background: rgba(212, 175, 55, 0.2);
    border-color: var(--accent-primary);
}

.terminal-ask-btn svg {
    width: 14px;
    height: 14px;
}

/* Chat Panel (expanded from terminal) */
.chat-panel {
    position: absolute;
    bottom: 0;
    right: 0;
    top: auto;
    left: auto;
    width: 400px;
    max-height: 550px;
    background: var(--terminal-bg);
    border: 1px solid var(--terminal-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(212, 175, 55, 0.1);
    overflow: hidden;
    transform: scale(0.95) translateY(20px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
    display: flex;
    flex-direction: column;
}

/* Mobile: collapse terminal to FAB, fixed bottom-right */
@media (max-width: 768px) {
    .terminal-widget {
        bottom: calc(16px + env(safe-area-inset-bottom)) !important;
        right: 16px !important;
        top: auto !important;
        left: auto !important;
    }
    /* Chat panel breaks free of the widget and fills the screen width */
    .chat-panel {
        position: fixed;
        bottom: calc(72px + env(safe-area-inset-bottom));
        right: 12px;
        left: 12px;
        top: auto;
        width: auto;
        max-height: calc(100dvh - 100px - env(safe-area-inset-bottom));
    }
    .terminal-box {
        width: auto;
    }
    .terminal-box-header,
    .terminal-box-body {
        display: none;
    }
    .terminal-box-footer {
        padding: 0;
    }
    .terminal-ask-btn {
        width: auto;
        padding: 0.65rem 1.1rem;
        border-radius: var(--radius-full);
        font-size: 0.7rem;
        letter-spacing: 0.12em;
    }
    /* Restore natural touch on header — drag is disabled on mobile */
    .chat-header {
        cursor: default;
        touch-action: auto;
    }
    /* Larger touch target for close button (44×44 minimum) */
    .chat-close {
        width: 44px;
        height: 44px;
    }
    /* Prevent messages scroll from bubbling to page */
    .chat-messages {
        overscroll-behavior: contain;
    }
    /* Prevent iOS viewport zoom on input focus (requires ≥ 16px) */
    .chat-input {
        font-size: 1rem;
    }
}

/* CRT Scanline overlay */
.chat-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 3px,
        rgba(0, 0, 0, 0.06) 3px,
        rgba(0, 0, 0, 0.06) 6px
    );
    pointer-events: none;
    z-index: 100;
}

.terminal-widget.open .chat-panel {
    transform: scale(1) translateY(0);
    opacity: 1;
    visibility: visible;
}

/* Adaptive chat panel anchor based on widget snap position */
.terminal-widget.snap-top .chat-panel {
    bottom: auto;
    top: 0;
}
.terminal-widget.snap-left .chat-panel {
    right: auto;
    left: 0;
}

/* Chat Header */
.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--terminal-border);
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.chat-header-text {
    display: flex;
    flex-direction: column;
}

.chat-header-title {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--terminal-text);
}

.chat-header-subtitle {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
}

.chat-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: transparent;
    border: 1px solid var(--terminal-border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    touch-action: manipulation;
    transition: all var(--transition-fast);
}

.chat-close:hover {
    color: var(--terminal-text);
    border-color: var(--terminal-text);
}

.chat-close svg {
    width: 16px;
    height: 16px;
}

/* Terminal Messages */
.chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.chat-message {
    max-width: 90%;
    animation: messageIn 0.3s ease;
}

@keyframes messageIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.chat-message.user {
    align-self: flex-end;
}

.chat-message.assistant {
    align-self: flex-start;
}

.chat-message-content {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    line-height: 1.5;
}

.chat-message.user .chat-message-content {
    background: rgba(212, 175, 55, 0.15);
    border: 1px solid var(--terminal-border);
    color: var(--terminal-text);
}

.chat-message.user .chat-message-content::before {
    content: '> ';
    color: var(--accent-primary);
}

.chat-message.assistant .chat-message-content {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
}

.chat-message.assistant .chat-message-content::before {
    content: '$ ';
    color: #22c55e;
}

.chat-message.typing .chat-message-content {
    display: flex;
    gap: 4px;
    padding: 0.75rem 1rem;
}

.chat-message.typing .chat-message-content::before {
    content: '$ ';
    color: #22c55e;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--terminal-text);
    border-radius: 50%;
    animation: typingBounce 1.4s ease-in-out infinite;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-4px); }
}

/* Terminal Input */
.chat-input-form {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--terminal-border);
}

.chat-input-form::before {
    content: '>';
    font-family: var(--font-mono);
    color: var(--terminal-text);
    display: flex;
    align-items: center;
    font-weight: 600;
}

.chat-input:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    border-radius: 3px;
}

.chat-input {
    flex: 1;
    padding: 0.5rem 0;
    background: transparent;
    border: none;
    color: var(--terminal-text);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    outline: none;
    caret-color: var(--terminal-text);
}

.chat-input::placeholder {
    color: var(--text-muted);
}

.chat-send {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid var(--terminal-border);
    border-radius: var(--radius-sm);
    color: var(--terminal-text);
    cursor: pointer;
    touch-action: manipulation;
    transition: all var(--transition-medium);
}

.chat-send:hover {
    background: rgba(212, 175, 55, 0.2);
    border-color: var(--terminal-text);
}

.chat-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.chat-send svg {
    width: 18px;
    height: 18px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-logo-mark {
    width: 40px;
    height: 40px;
    color: var(--accent-primary);
    display: block;
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 0.75rem;
}

.footer-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-primary);
    border-color: rgba(212, 175, 55, 0.3);
}

.footer-links a svg {
    width: 18px;
    height: 18px;
}

.footer-version {
    font-size: 0.7rem;
    color: var(--text-muted);
    opacity: 0.45;
    letter-spacing: 0.08em;
    margin-top: 4px;
}

/* ==========================================================================
   Why Contact — Orbital System
   ========================================================================== */

.why-contact {
    padding: var(--spacing-lg) 0;
}

.why-manifesto {
    max-width: 680px;
    margin: var(--spacing-md) auto var(--spacing-sm);
    text-align: center;
    position: relative;
    padding: var(--spacing-sm) var(--spacing-md);
}

.why-manifesto::before,
.why-manifesto::after {
    content: '';
    display: block;
    width: 48px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
    margin: 0 auto;
}

.why-manifesto::before { margin-bottom: var(--spacing-md); }
.why-manifesto::after  { margin-top: var(--spacing-md); }

.manifesto-hook {
    font-size: 1.3rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

.manifesto-body {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--text-secondary);
    font-style: italic;
}

.orbit-system {
    position: relative;
    width: 420px;
    height: 420px;
    margin: var(--spacing-sm) auto var(--spacing-sm);
}

/* Decorative rings */
.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    pointer-events: none;
}

.orbit-ring--outer {
    width: 360px;
    height: 360px;
    border: 1px solid rgba(212, 175, 55, 0.18);
    box-shadow: 0 0 40px rgba(212, 175, 55, 0.04) inset;
}

.orbit-ring--inner {
    width: 220px;
    height: 220px;
    border: 1px dashed rgba(212, 175, 55, 0.08);
}

/* Center node */
.orbit-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 76px;
    height: 76px;
    z-index: 10;
}

.orbit-center-inner {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    position: relative;
    z-index: 1;
    border: 2px solid rgba(212, 175, 55, 0.5);
    box-shadow: 0 0 40px rgba(212, 175, 55, 0.3), 0 0 80px rgba(212, 175, 55, 0.1);
    transition: box-shadow var(--transition-medium);
}

.orbit-center-inner:hover {
    box-shadow: 0 0 60px rgba(212, 175, 55, 0.5), 0 0 100px rgba(212, 175, 55, 0.2);
}

.orbit-ta-logo {
    width: 38px;
    height: 38px;
}

.orbit-center-glow {
    position: absolute;
    inset: -24px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.18) 0%, transparent 70%);
    animation: orbit-center-pulse 3s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes orbit-center-pulse {
    0%, 100% { transform: scale(1);   opacity: 0.5; }
    50%       { transform: scale(1.3); opacity: 1;   }
}

/* Orbit nodes */
.orbit-node {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 58px;
    height: 58px;
    margin: -29px 0 0 -29px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 5;
    animation: orbit-spin 28s linear infinite;
}

@keyframes orbit-spin {
    from { transform: rotate(0deg)   translateX(170px) rotate(0deg);   }
    to   { transform: rotate(360deg) translateX(170px) rotate(-360deg); }
}

.orbit-node-bubble {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: var(--glass-bg-strong);
    border: 1px solid var(--glass-border-light);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    transition: all var(--transition-medium);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.orbit-node-bubble svg {
    width: 22px;
    height: 22px;
    pointer-events: none;
}

.orbit-node-label {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color var(--transition-fast);
    pointer-events: none;
}

/* Hover state */
.orbit-node:hover .orbit-node-bubble {
    background: rgba(212, 175, 55, 0.12);
    border-color: rgba(212, 175, 55, 0.45);
    box-shadow: 0 0 24px rgba(212, 175, 55, 0.25);
    transform: scale(1.1);
}

.orbit-node:hover .orbit-node-label {
    color: var(--accent-primary);
}

/* Active state */
.orbit-node.active .orbit-node-bubble {
    background: rgba(212, 175, 55, 0.2);
    border-color: rgba(212, 175, 55, 0.65);
    box-shadow: 0 0 30px rgba(212, 175, 55, 0.4), 0 0 60px rgba(212, 175, 55, 0.15);
    transform: scale(1.2);
}

.orbit-node.active .orbit-node-label {
    color: var(--accent-primary);
    font-weight: 600;
}

/* Dimmed siblings when one is active */
.orbit-system.paused .orbit-node:not(.active) .orbit-node-bubble {
    opacity: 0.35;
}

.orbit-system.paused .orbit-node:not(.active) .orbit-node-label {
    opacity: 0.35;
}

/* Pause orbit on click */
.orbit-system.paused .orbit-node {
    animation-play-state: paused;
}

/* Orbit hint */
.orbit-hint {
    text-align: center;
    margin-bottom: 1rem;
    animation: hintPulse 2.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    transition: opacity 0.4s ease;
}

.orbit-hint.hidden {
    opacity: 0;
    pointer-events: none;
    animation: none;
}

.orbit-hint-inner {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(212, 175, 55, 0.08);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-primary);
}

.orbit-hint-inner svg {
    width: 14px;
    height: 14px;
    animation: hintTap 2.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Card panel */
.orbit-card-panel {
    max-width: 580px;
    margin: 3rem auto 0;
}

/* Active card */
.orbit-active-card {
    padding: 2rem 2.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    animation: orbit-card-in 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    cursor: default;
}

@keyframes orbit-card-in {
    from { opacity: 0; transform: translateY(24px) scale(0.96); }
    to   { opacity: 1; transform: translateY(0)    scale(1);    }
}

.orbit-active-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.orbit-active-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.orbit-active-icon svg {
    width: 22px;
    height: 22px;
}

.orbit-active-type {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.orbit-active-match {
    font-size: 0.975rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.orbit-active-value {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: rgba(212, 175, 55, 0.06);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--accent-primary);
    font-weight: 500;
    line-height: 1.65;
}

.orbit-active-value svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.orbit-active-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.8rem 1.6rem;
    background: var(--gradient-primary);
    color: var(--bg-primary);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    text-decoration: none;
    align-self: flex-start;
    transition: all var(--transition-medium);
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
    cursor: pointer;
}

.orbit-active-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(212, 175, 55, 0.45);
}

.orbit-active-cta svg {
    width: 15px;
    height: 15px;
}

.why-contact-closing {
    text-align: center;
    font-size: 1.05rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: var(--spacing-sm);
}

/* Mobile */
@media (max-width: 640px) {
    .orbit-system {
        width: 310px;
        height: 310px;
    }

    .orbit-ring--outer { width: 270px; height: 270px; }
    .orbit-ring--inner { width: 170px; height: 170px; }

    .orbit-center { width: 60px; height: 60px; }
    .orbit-ta-logo { width: 30px; height: 30px; }

    .orbit-node {
        width: 46px;
        height: 46px;
        margin: -23px 0 0 -23px;
    }

    .orbit-node-bubble {
        width: 46px;
        height: 46px;
    }

    .orbit-node-bubble svg { width: 18px; height: 18px; }
    .orbit-node-label { display: none; }
    .orbit-hint { margin-bottom: 1rem; }

    @keyframes orbit-spin {
        from { transform: rotate(0deg)   translateX(125px) rotate(0deg);   }
        to   { transform: rotate(360deg) translateX(125px) rotate(-360deg); }
    }

    .orbit-active-card { padding: 1.5rem; }
    .orbit-active-type { font-size: 1.25rem; }
}

@media (prefers-reduced-motion: reduce) {
    .orbit-node { animation: none; }
    .orbit-center-glow { animation: none; }
}

/* ==========================================================================
   Scroll Animations
   ========================================================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Reduced Motion — comprehensive override
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .bg-gradient-animated,
    .bg-noise,
    .cursor-glow,
    .brain-glow-ring,
    .hero-brain-img,
    .orbit-ring,
    .orbit-node,
    .neural-network-canvas {
        animation: none !important;
        transition: none !important;
    }
    html {
        scroll-behavior: auto;
    }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .hero-orb,
    .bg-gradient-animated,
    .scroll-line,
    .chat-toggle-pulse,
    .btn-shimmer,
    .neural-network-canvas {
        animation: none !important;
    }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */
@media print {
    .nav, .chat-widget, .scroll-indicator, .cursor-glow,
    .bg-gradient-animated, .bg-noise, .bg-grid, .neural-network-canvas {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }
}