/* ============================================================
   LUMIOR.IO — Reimagined Design System
   Motion-forward. Editorially sharp. No bento grids.
   Dark: Deep Space (#050507) · Light: Alabaster (#FBFBFD)
   Primary accent: Indigo (#6366F1 / #4F46E5)
   Gold: Portfolio section ONLY — earned credibility, not decoration
   ============================================================ */

/* ==========================================
   1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ========================================== */
:root {
    /* ── Backgrounds ── */
    --bg-primary:       #050507;
    --bg-secondary:     #0a0b0f;
    --bg-tertiary:      #0f1117;
    --bg-elevated:      #13151e;
    --bg-surface:       rgba(255, 255, 255, 0.03);
    --bg-surface-hover: rgba(255, 255, 255, 0.065);
    --surface:          rgba(255, 255, 255, 0.03);
    --surface-hover:    rgba(255, 255, 255, 0.065);

    /* ── Borders ── */
    --border-hairline:  rgba(255, 255, 255, 0.07);
    --border-hover:     rgba(255, 255, 255, 0.16);
    --border:           rgba(255, 255, 255, 0.07);
    --border-glass-top: rgba(255, 255, 255, 0.12);

    /* ── Text ── */
    --text-primary:   #F0F0F5;
    --text-secondary: #8A8FA8;
    --text-tertiary:  #8e95a5;

    /* ── Primary Accent: Indigo/Violet (used everywhere except portfolio) ── */
    --accent-primary:       #6366F1;
    --accent-primary-hover: #818CF8;
    --accent-primary-soft:  rgba(99, 102, 241, 0.12);
    --accent-primary-glow:  rgba(99, 102, 241, 0.25);
    --accent-secondary:     #8B5CF6;
    --accent-secondary-soft: rgba(139, 92, 246, 0.10);

    /* ── Gold: PORTFOLIO SECTION ONLY ── */
    --accent-gold:      #E5A93C;
    --accent-gold-soft: rgba(229, 169, 60, 0.08);
    --accent-gold-glow: rgba(229, 169, 60, 0.15);

    /* ── Legacy aliases (kept for JS compat) ── */
    --accent-cyan:    #38BDF8;
    --accent-emerald: #34D399;

    /* ── Gradients ── */
    --gradient-accent: linear-gradient(135deg, #4F46E5 0%, #6366F1 50%, #8B5CF6 100%);
    --gradient-accent-reverse: linear-gradient(135deg, #8B5CF6 0%, #6366F1 100%);
    --gradient-bg:     radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.06) 0%, transparent 65%);
    --gradient-card:   linear-gradient(135deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0.01) 100%);

    /* ── Hero orbs (indigo/violet mesh) ── */
    --orb-1: radial-gradient(circle, rgba(99, 102, 241, 0.22) 0%, transparent 65%);
    --orb-2: radial-gradient(circle, rgba(139, 92, 246, 0.16) 0%, transparent 60%);
    --orb-3: radial-gradient(circle, rgba(79, 70, 229, 0.12) 0%, transparent 55%);
    --orb-4: radial-gradient(circle, rgba(167, 139, 250, 0.10) 0%, transparent 50%);

    /* ── Navigation ── */
    --nav-bg:         rgba(5, 5, 7, 0.72);
    --nav-bg-scrolled: rgba(5, 5, 7, 0.94);

    /* ── Shadows ── */
    --shadow-sm:   0 1px 2px rgba(0,0,0,0.5), 0 4px 16px -2px rgba(0,0,0,0.4);
    --shadow-md:   0 2px 4px rgba(0,0,0,0.6), 0 12px 32px -4px rgba(0,0,0,0.5), 0 0 24px rgba(99,102,241,0.08);
    --shadow-lg:   0 8px 32px -4px rgba(0,0,0,0.7), 0 1px 2px rgba(255,255,255,0.03) inset;
    --shadow-glow: 0 0 32px rgba(99, 102, 241, 0.20);
    --shadow-glow-strong: 0 0 60px rgba(99, 102, 241, 0.35);

    /* ── Typography ── */
    --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Segoe UI", sans-serif;
    --font-mono: "SF Mono", "JetBrains Mono", "Menlo", "Consolas", monospace;

    /* ── Type Scale ── */
    --font-size-hero:      clamp(2.8rem, 8vw, 6rem);
    --font-size-display:   clamp(2rem, 4.5vw, 3.5rem);
    --font-size-h2:        clamp(1.75rem, 3vw, 2.5rem);
    --font-size-h3:        clamp(1.2rem, 2vw, 1.5rem);
    --font-size-lead:      clamp(1.05rem, 1.5vw, 1.2rem);
    --font-size-body:      1rem;
    --font-size-sm:        0.875rem;
    --font-size-xs:        0.75rem;
    --font-size-caption:   0.6875rem;

    /* ── Tracking ── */
    --tracking-hero:    -0.04em;
    --tracking-display: -0.03em;
    --tracking-h2:      -0.02em;
    --tracking-h3:      -0.015em;
    --tracking-body:    0;
    --tracking-badge:   0.10em;
    --tracking-mono:    0.04em;

    /* ── Line Heights ── */
    --leading-tight:   1.05;
    --leading-heading: 1.15;
    --leading-snug:    1.28;
    --leading-body:    1.68;

    /* ── 8pt Spacing Grid ── */
    --space-1:  4px;
    --space-2:  8px;
    --space-3:  12px;
    --space-4:  16px;
    --space-5:  20px;
    --space-6:  24px;
    --space-8:  32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;
    --space-32: 128px;
    --space-40: 160px;

    /* ── Border Radii ── */
    --radius-xs:   6px;
    --radius-sm:   10px;
    --radius-md:   16px;
    --radius-lg:   24px;
    --radius-xl:   32px;
    --radius-full: 9999px;

    /* ── Glass ── */
    --glass-blur-nav:      blur(24px) saturate(180%);
    --glass-blur-card:     blur(16px) saturate(160%);
    --glass-blur-floating: blur(28px) saturate(200%);

    /* ── Easing & Timing ── */
    --ease-apple:   cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring:  cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-in-out:  cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out:     cubic-bezier(0, 0, 0.2, 1);

    --dur-instant:    80ms;
    --dur-fast:       160ms;
    --dur-normal:     320ms;
    --dur-slow:       560ms;
    --dur-deliberate: 900ms;

    --transition-fast:   150ms var(--ease-in-out);
    --transition-base:   280ms var(--ease-apple);
    --transition-slow:   480ms var(--ease-apple);
    --transition-spring: 400ms var(--ease-spring);

    /* ── Button tokens ── */
    --btn-ghost-color:       #F0F0F5;
    --btn-ghost-border:      rgba(255, 255, 255, 0.15);
    --btn-ghost-hover-bg:    rgba(255, 255, 255, 0.07);
    --btn-ghost-hover-color: #FFFFFF;
}

/* ── Light Theme (Alabaster) ── */
[data-theme="light"] {
    --bg-primary:       #FBFBFD;
    --bg-secondary:     #F2F2F7;
    --bg-tertiary:      #EAEAEE;
    --bg-elevated:      #FFFFFF;
    --bg-surface:       rgba(0, 0, 0, 0.025);
    --bg-surface-hover: rgba(0, 0, 0, 0.05);
    --surface:          rgba(0, 0, 0, 0.025);
    --surface-hover:    rgba(0, 0, 0, 0.05);

    --border-hairline:  rgba(0, 0, 0, 0.07);
    --border-hover:     rgba(0, 0, 0, 0.14);
    --border:           rgba(0, 0, 0, 0.07);
    --border-glass-top: rgba(255, 255, 255, 0.9);

    --text-primary:   #1D1D1F;
    --text-secondary: #5A616F;
    --text-tertiary:  #555f78;

    --accent-primary:       #4F46E5;
    --accent-primary-hover: #4338CA;
    --accent-primary-soft:  rgba(79, 70, 229, 0.10);
    --accent-primary-glow:  rgba(79, 70, 229, 0.18);
    --accent-secondary:     #7C3AED;
    --accent-secondary-soft: rgba(124, 58, 237, 0.08);

    --accent-gold:      #925600;
    --accent-gold-soft: rgba(180, 120, 24, 0.08);
    --accent-gold-glow: rgba(180, 120, 24, 0.12);

    --gradient-accent: linear-gradient(135deg, #4338CA 0%, #4F46E5 50%, #7C3AED 100%);
    --gradient-accent-reverse: linear-gradient(135deg, #7C3AED 0%, #4F46E5 100%);
    --gradient-bg:     radial-gradient(ellipse at 50% 0%, rgba(79, 70, 229, 0.05) 0%, transparent 60%);

    --orb-1: radial-gradient(circle, rgba(79, 70, 229, 0.14) 0%, transparent 65%);
    --orb-2: radial-gradient(circle, rgba(124, 58, 237, 0.10) 0%, transparent 60%);
    --orb-3: radial-gradient(circle, rgba(67, 56, 202, 0.08) 0%, transparent 55%);
    --orb-4: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 50%);

    --nav-bg:          rgba(251, 251, 253, 0.80);
    --nav-bg-scrolled: rgba(251, 251, 253, 0.96);

    --shadow-sm:   0 1px 2px rgba(0,0,0,0.04), 0 4px 16px -2px rgba(0,0,0,0.06);
    --shadow-md:   0 2px 4px rgba(0,0,0,0.05), 0 12px 32px -4px rgba(0,0,0,0.08), 0 0 20px rgba(79,70,229,0.06);
    --shadow-lg:   0 8px 32px -4px rgba(0,0,0,0.08), 0 1px 2px rgba(255,255,255,0.8) inset;
    --shadow-glow: 0 0 32px rgba(79, 70, 229, 0.14);
    --shadow-glow-strong: 0 0 60px rgba(79, 70, 229, 0.25);

    --btn-ghost-color:       #1D1D1F;
    --btn-ghost-border:      rgba(0, 0, 0, 0.14);
    --btn-ghost-hover-bg:    rgba(0, 0, 0, 0.05);
    --btn-ghost-hover-color: #1D1D1F;
}

/* ── Reduced Motion ── */
@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;
    }
    /* Immediately reveal all animated elements */
    .anim-word,
    .anim-slide-up,
    .anim-slide-left,
    .anim-fade,
    .anim-scale {
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
        transition: none !important;
    }
    /* Pause continuous animations */
    .hero-orb,
    .marquee-track,
    .scroll-cue-arrow {
        animation: none !important;
    }
}

/* ==========================================
   2. RESET & BASE
   ========================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: 76px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: var(--leading-body);
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    color: inherit;
}

/* ==========================================
   3. TYPOGRAPHY & ANIMATION PRIMITIVES
   ========================================== */

/* Gradient text — indigo/violet */
.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    /* Ensure display context allows background-clip */
    display: inline;
}

/* Section tag/eyebrow */
.section-tag {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: var(--font-size-caption);
    font-weight: 600;
    letter-spacing: var(--tracking-badge);
    text-transform: uppercase;
    color: var(--accent-primary);
    margin-bottom: var(--space-4);
    padding: 5px 14px;
    background: var(--accent-primary-soft);
    border: 1px solid rgba(99, 102, 241, 0.20);
    border-radius: var(--radius-full);
}

[data-theme="light"] .section-tag {
    border-color: rgba(79, 70, 229, 0.18);
}

.section-title {
    font-size: var(--font-size-display);
    font-weight: 800;
    line-height: var(--leading-heading);
    letter-spacing: var(--tracking-h2);
    margin-bottom: var(--space-4);
}

.section-desc {
    font-size: var(--font-size-lead);
    color: var(--text-secondary);
    max-width: 580px;
    line-height: var(--leading-body);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* ── Animation Keyframes ── */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-28px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes wordReveal {
    from {
        opacity: 0;
        transform: translateY(0.4em);
        filter: blur(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%       { transform: translate(20px, -15px) scale(1.04); }
    66%       { transform: translate(-12px, 10px) scale(0.97); }
}

@keyframes marqueeScroll {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

@keyframes pulseGlow {
    0%, 100% { opacity: 0.6; }
    50%       { opacity: 1; }
}

@keyframes cursorPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    50%       { transform: translate(-50%, -50%) scale(1.4); opacity: 0.6; }
}

/* ── Shared animation classes (JS-triggered on scroll) ── */

/* anim-word: split-word entrance, stagger via --i */
.anim-word {
    display: inline-block;
    opacity: 0;
    transform: translateY(0.4em);
    /* Note: filter:blur conflicts with gradient-text on some browsers.
       We animate opacity + transform only; blur is additive. */
    transition:
        opacity var(--dur-slow) var(--ease-apple),
        transform var(--dur-slow) var(--ease-apple);
    transition-delay: calc(var(--i, 0) * 65ms);
    will-change: opacity, transform;
}

/* gradient-text words need background-clip preserved through opacity anim */
.anim-word.gradient-text {
    -webkit-text-fill-color: transparent;
    background-clip: text;
    -webkit-background-clip: text;
    background-image: var(--gradient-accent);
}

body.is-loaded .anim-word,
.anim-word.is-revealed {
    opacity: 1;
    transform: translateY(0);
}

/* anim-slide-up: translate + opacity, stagger via --i */
.anim-slide-up {
    opacity: 0;
    transform: translateY(24px);
    transition:
        opacity var(--dur-slow) var(--ease-apple),
        transform var(--dur-slow) var(--ease-apple);
    transition-delay: calc(var(--i, 0) * 80ms);
    will-change: opacity, transform;
}

.anim-slide-up.is-revealed {
    opacity: 1;
    transform: translateY(0);
}

/* anim-slide-left */
.anim-slide-left {
    opacity: 0;
    transform: translateX(-24px);
    transition:
        opacity var(--dur-slow) var(--ease-apple),
        transform var(--dur-slow) var(--ease-apple);
    transition-delay: calc(var(--i, 0) * 80ms);
    will-change: opacity, transform;
}

.anim-slide-left.is-revealed {
    opacity: 1;
    transform: translateX(0);
}

/* anim-fade: opacity only */
.anim-fade {
    opacity: 0;
    transition: opacity var(--dur-slow) var(--ease-apple);
    transition-delay: calc(var(--i, 0) * 60ms);
    will-change: opacity;
}

.anim-fade.is-revealed {
    opacity: 1;
}

/* anim-scale */
.anim-scale {
    opacity: 0;
    transform: scale(0.93);
    transition:
        opacity var(--dur-slow) var(--ease-spring),
        transform var(--dur-slow) var(--ease-spring);
    transition-delay: calc(var(--i, 0) * 70ms);
    will-change: opacity, transform;
}

.anim-scale.is-revealed {
    opacity: 1;
    transform: scale(1);
}

/* ── Hero entrance (fires on body.is-loaded) ── */
.hero-entrance-line {
    overflow: hidden;
    display: block;
}

/* ==========================================
   4. LAYOUT
   ========================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ==========================================
   5. BUTTONS
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    white-space: nowrap;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: var(--gradient-accent);
    color: #FFFFFF;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-strong);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text-primary);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.btn-ghost {
    color: var(--btn-ghost-color);
    border: 1px solid var(--btn-ghost-border);
    background: transparent;
}

.btn-ghost:hover {
    color: var(--btn-ghost-hover-color);
    background: var(--btn-ghost-hover-bg);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 15px 36px;
    font-size: 1rem;
}

/* Focus visible — indigo ring everywhere */
:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* Skip to content link — visually hidden until focused */
.skip-link {
    position: fixed;
    top: var(--space-4);
    left: var(--space-4);
    z-index: 9999;
    background: var(--accent-primary);
    color: #FFFFFF;
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-sm);
    transform: translateY(-120%);
    transition: transform var(--transition-base);
    text-decoration: none;
}

.skip-link:focus {
    transform: translateY(0);
    outline: 2px solid #FFFFFF;
    outline-offset: 2px;
}

/* ==========================================
   6. NAVIGATION & HEADER
   ========================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    background: var(--nav-bg);
    backdrop-filter: var(--glass-blur-nav);
    -webkit-backdrop-filter: var(--glass-blur-nav);
    border-bottom: 1px solid transparent;
    transition:
        background var(--transition-base),
        border-color var(--transition-base),
        padding var(--transition-base),
        box-shadow var(--transition-base);
}

.site-header.scrolled {
    padding: 12px 0;
    background: var(--nav-bg-scrolled);
    border-bottom-color: var(--border-hairline);
    box-shadow: 0 1px 0 var(--border-hairline), 0 8px 24px rgba(0,0,0,0.15);
}

.nav-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1001;
    color: var(--text-primary);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.nav-logo:hover {
    opacity: 0.80;
}

.logo-icon {
    width: 44px;
    height: 33px;
    display: block;
}

.logo-icon path,
.nav-logo svg path,
.footer-logo svg path {
    stroke: var(--text-primary);
    transition: stroke var(--transition-base);
}

.logo-icon circle,
.nav-logo svg circle,
.footer-logo svg circle {
    fill: var(--accent-primary);
    transition: fill var(--transition-base);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

/* Nav links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    position: relative;
    padding: 4px 0;
    letter-spacing: -0.005em;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--accent-primary);
    border-radius: 1px;
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.is-active::after {
    width: 100%;
}

/* Nav actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

/* Theme toggle */
.theme-toggle {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.theme-toggle:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-hover);
    color: var(--text-primary);
    transform: rotate(15deg);
}

.theme-icon {
    position: absolute;
    transition: all var(--transition-base);
}

.sun-icon {
    opacity: 0;
    transform: scale(0.5) rotate(-90deg);
}

.moon-icon {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

[data-theme="light"] .sun-icon {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

[data-theme="light"] .moon-icon {
    opacity: 0;
    transform: scale(0.5) rotate(90deg);
}

/* Nav CTA — indigo */
.nav-cta {
    font-size: 0.85rem;
    font-weight: 600;
    padding: 9px 20px;
    background: var(--gradient-accent);
    color: #FFFFFF;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    box-shadow: 0 0 20px var(--accent-primary-glow);
    letter-spacing: -0.01em;
}

.nav-cta:hover {
    transform: translateY(-1.5px);
    box-shadow: var(--shadow-glow-strong);
}

/* Mobile menu toggle */
.mobile-nav-toggle {
    display: none;
    width: 38px;
    height: 38px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    z-index: 1001;
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.mobile-nav-toggle span {
    display: block;
    width: 18px;
    height: 1.5px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-fast);
}

.mobile-nav-toggle.is-active span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}

.mobile-nav-toggle.is-active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-nav-toggle.is-active span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile drawer */
.mobile-nav-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-nav-drawer.is-active {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
}

.mobile-nav-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-8);
    text-align: center;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
}

.mobile-nav-link {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--accent-primary);
}

.mobile-nav-cta {
    margin-top: var(--space-4);
}

/* ==========================================
   7. HERO SECTION
   ========================================== */
.hero-section {
    position: relative;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px var(--space-6) var(--space-24);
    overflow: hidden;
}

/* Gradient mesh background */
.hero-mesh {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    will-change: transform;
}

.hero-orb-1 {
    width: 700px;
    height: 700px;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--orb-1);
    animation: orbFloat 18s ease-in-out infinite;
}

.hero-orb-2 {
    width: 500px;
    height: 500px;
    top: 10%;
    right: -100px;
    background: var(--orb-2);
    animation: orbFloat 24s ease-in-out infinite reverse;
}

.hero-orb-3 {
    width: 400px;
    height: 400px;
    bottom: 5%;
    left: -80px;
    background: var(--orb-3);
    animation: orbFloat 20s ease-in-out infinite 4s;
}

/* Noise overlay */
.hero-mesh::after {
    content: '';
    position: absolute;
    inset: 0;
    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)' opacity='0.035'/%3E%3C/svg%3E");
    background-size: 200px 200px;
    opacity: 0.4;
    pointer-events: none;
}

/* Hero content */
.hero-content {
    position: relative;
    z-index: 1;
    max-width: 920px;
    width: 100%;
}

/* Hero headline */
.hero-title {
    font-size: var(--font-size-hero);
    font-weight: 800;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-hero);
    margin-bottom: var(--space-8);
    color: var(--text-primary);
}

.title-line {
    display: block;
}

/* Word-split animation wrapper */
.word-split {
    display: inline;
    word-spacing: normal;
}

.hero-subtitle {
    font-size: var(--font-size-lead);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-10);
    line-height: var(--leading-body);
    letter-spacing: -0.005em;
}

/* Hero CTAs */
.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* Scroll chevron */
.scroll-cue {
    position: absolute;
    bottom: var(--space-10);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 1;
    opacity: 0.4;
    transition: opacity var(--transition-base);
}

.scroll-cue.fade-out {
    opacity: 0;
}

.scroll-cue-line {
    width: 1px;
    height: 32px;
    background: linear-gradient(to bottom, transparent, var(--text-tertiary));
}

.scroll-cue-arrow {
    color: var(--text-tertiary);
    animation: slideUp 1.5s var(--ease-apple) infinite;
}

/* ==========================================
   8. STUDIOS SECTION
   ========================================== */
.studios-section {
    padding: var(--space-40) 0;
    position: relative;
    overflow: hidden;
}

.studios-section .section-header {
    padding: 0 var(--space-6);
    margin-bottom: var(--space-12);
}

/* Studios rail */
.studios-rail-wrapper {
    position: relative;
    padding: var(--space-4) 0 var(--space-8);
}

/* Fade edges on desktop */
.studios-rail-wrapper::before,
.studios-rail-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 80px;
    z-index: 2;
    pointer-events: none;
}

.studios-rail-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-primary), transparent);
}

.studios-rail-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-primary), transparent);
}

.studios-rail {
    display: flex;
    gap: var(--space-5);
    padding: var(--space-4) var(--space-8);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    cursor: grab;
    touch-action: pan-x;
}

.studios-rail::-webkit-scrollbar {
    display: none;
}

.studios-rail.is-grabbing {
    cursor: grabbing;
}

/* Studio card */
.studio-card {
    flex: 0 0 300px;
    scroll-snap-align: start;
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    position: relative;
    overflow: hidden;
    transition:
        border-color var(--transition-base),
        background var(--transition-base),
        transform var(--transition-base),
        box-shadow var(--transition-base);
    will-change: transform;
    transform-style: preserve-3d;
}

.studio-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-surface-hover);
    box-shadow: var(--shadow-md);
}

/* Top accent line on hover */
.studio-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.studio-card:hover::before {
    opacity: 1;
}

.studio-number {
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    letter-spacing: var(--tracking-badge);
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: var(--space-6);
    opacity: 0.8;
}

.studio-name {
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: var(--space-3);
    font-weight: 500;
}

.studio-title {
    font-size: 1.1875rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: var(--leading-snug);
    margin-bottom: var(--space-3);
}

.studio-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: var(--leading-body);
}

.studio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-6);
}

.studio-tag {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--accent-primary);
    background: var(--accent-primary-soft);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: var(--radius-full);
    padding: 3px 10px;
}

[data-theme="light"] .studio-tag {
    border-color: rgba(79, 70, 229, 0.15);
}

/* Rail drag hint */
.studios-hint {
    text-align: center;
    margin-top: var(--space-4);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    letter-spacing: 0.05em;
    font-family: var(--font-mono);
}

/* ==========================================
   9. PRINCIPLES SECTION
   ========================================== */
.principles-section {
    padding: var(--space-40) 0;
    position: relative;
}

.principles-section .section-header {
    text-align: left;
    align-items: flex-start;
    margin-bottom: var(--space-16);
}

.principles-section .section-title {
    font-size: var(--font-size-display);
    max-width: 560px;
}

.principles-list {
    display: flex;
    flex-direction: column;
}

.principle-row {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--space-10);
    align-items: start;
    padding: var(--space-10) 0;
    border-top: 1px solid var(--border-hairline);
}

.principle-row:last-child {
    border-bottom: 1px solid var(--border-hairline);
}

.principle-ordinal {
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1;
    color: var(--accent-primary);
    opacity: 0.15;
    font-variant-numeric: tabular-nums;
    padding-top: 4px;
}

.principle-body {}

.principle-title {
    font-size: var(--font-size-h3);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: var(--leading-snug);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.principle-desc {
    font-size: var(--font-size-body);
    color: var(--text-secondary);
    line-height: var(--leading-body);
    max-width: 560px;
}

/* ==========================================
   10. PORTFOLIO SECTION — THE GOLD MOMENT
   ========================================== */
.portfolio-section {
    padding: var(--space-40) 0;
    position: relative;
    overflow: hidden;
}

/* The one warm moment on the page */
.portfolio-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(229, 169, 60, 0.05) 0%, transparent 65%);
    pointer-events: none;
    z-index: 0;
}

.portfolio-section .container {
    position: relative;
    z-index: 1;
}

/* Gold section tag overrides */
.portfolio-section .section-tag {
    color: var(--accent-gold);
    background: var(--accent-gold-soft);
    border-color: rgba(229, 169, 60, 0.20);
}

[data-theme="light"] .portfolio-section .section-tag {
    border-color: rgba(180, 120, 24, 0.20);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.portfolio-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-top: 2px solid var(--accent-gold);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    transition:
        transform var(--transition-base),
        box-shadow var(--transition-base),
        border-color var(--transition-base);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    text-decoration: none;
    color: inherit;
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 32px var(--accent-gold-glow);
    border-color: var(--accent-gold);
}

.portfolio-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.portfolio-badge {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: var(--radius-full);
}

.badge-live {
    color: #34D399;
    background: rgba(52, 211, 153, 0.10);
    border: 1px solid rgba(52, 211, 153, 0.20);
}

.badge-prod {
    color: var(--accent-primary);
    background: var(--accent-primary-soft);
    border: 1px solid rgba(99, 102, 241, 0.20);
}

.portfolio-platform {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    letter-spacing: 0.04em;
}

.portfolio-app-name {
    font-size: 1.375rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--accent-gold);
    line-height: var(--leading-snug);
}

.portfolio-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: var(--leading-body);
    flex: 1;
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--accent-gold);
    margin-top: var(--space-2);
    transition: gap var(--transition-fast), opacity var(--transition-fast);
}

.portfolio-link:hover {
    gap: 10px;
    opacity: 0.8;
}

/* ==========================================
   11. CTA / CONTACT SECTION
   ========================================== */
.cta-section {
    padding: var(--space-40) 0;
    position: relative;
    overflow: hidden;
}

/* Reuse indigo mesh, lower intensity */
.cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 900px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(99, 102, 241, 0.10) 0%, transparent 65%);
    pointer-events: none;
}

.cta-inner {
    position: relative;
    z-index: 1;
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
}

.cta-title {
    font-size: var(--font-size-display);
    font-weight: 800;
    letter-spacing: var(--tracking-h2);
    line-height: var(--leading-heading);
    margin-bottom: var(--space-5);
    color: var(--text-primary);
}

.cta-desc {
    font-size: var(--font-size-lead);
    color: var(--text-secondary);
    line-height: var(--leading-body);
    margin-bottom: var(--space-10);
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.cta-email-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-mono);
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #FFFFFF;
    background: var(--gradient-accent);
    padding: 16px 36px;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-glow);
    transition: all var(--transition-base);
}

.cta-email-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-strong);
}

/* ==========================================
   12. FOOTER
   ========================================== */
.site-footer {
    padding: var(--space-16) 0 var(--space-10);
    border-top: 1px solid var(--border-hairline);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-12);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.footer-tagline {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.footer-desc {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    line-height: var(--leading-body);
    max-width: 280px;
}

.footer-heading {
    font-size: var(--font-size-xs);
    font-weight: 700;
    letter-spacing: var(--tracking-badge);
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: var(--space-5);
    font-family: var(--font-mono);
}

.footer-links-col {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-link {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    letter-spacing: -0.005em;
}

.footer-link:hover {
    color: var(--text-primary);
}

.footer-social {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--accent-primary-soft);
    border-color: rgba(99, 102, 241, 0.25);
    color: var(--accent-primary);
    transform: translateY(-2px);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-hairline);
}

.footer-copyright {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    letter-spacing: 0.02em;
}

.footer-legal {
    display: flex;
    gap: var(--space-6);
}

.footer-legal-link {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
    letter-spacing: -0.005em;
}

.footer-legal-link:hover {
    color: var(--text-secondary);
}

/* ==========================================
   13. CURSOR DOT FOLLOWER (desktop only)
   ========================================== */
.cursor-dot {
    position: fixed;
    width: 10px;
    height: 10px;
    background: var(--accent-primary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width var(--transition-fast), height var(--transition-fast), opacity var(--transition-fast);
    will-change: transform;
    opacity: 0;
}

.cursor-dot.is-visible {
    opacity: 0.7;
}

.cursor-dot.is-hovering {
    width: 20px;
    height: 20px;
    opacity: 0.4;
    background: var(--accent-secondary);
}

/* ==========================================
   14. TECH MARQUEE (studios section bottom)
   ========================================== */
.tech-marquee {
    padding: var(--space-8) 0;
    overflow: hidden;
    border-top: 1px solid var(--border-hairline);
    border-bottom: 1px solid var(--border-hairline);
    position: relative;
    margin-top: var(--space-12);
}

.tech-marquee::before,
.tech-marquee::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 120px;
    z-index: 2;
    pointer-events: none;
}

.tech-marquee::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-primary), transparent);
}

.tech-marquee::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-primary), transparent);
}

.marquee-track {
    display: flex;
    gap: var(--space-10);
    width: max-content;
    animation: marqueeScroll 28s linear infinite;
}

.tech-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-tertiary);
    letter-spacing: -0.01em;
    white-space: nowrap;
    transition: color var(--transition-fast);
}

.tech-item:hover {
    color: var(--text-secondary);
}

/* ==========================================
   15. RESPONSIVE
   ========================================== */

/* Tablet */
@media (max-width: 1024px) {
    .nav-links {
        gap: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .mobile-nav-toggle {
        display: flex;
    }

    .hero-section {
        padding: 100px var(--space-5) var(--space-20);
        min-height: 100svh;
    }

    .hero-title {
        font-size: clamp(2.2rem, 10vw, 3.2rem);
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
    }

    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .studios-section,
    .principles-section,
    .portfolio-section,
    .cta-section {
        padding: var(--space-24) 0;
    }

    .studios-rail {
        padding: var(--space-4) var(--space-5);
    }

    .studio-card {
        flex: 0 0 260px;
    }

    .studios-rail-wrapper::before,
    .studios-rail-wrapper::after {
        width: 40px;
    }

    .principles-section .section-header {
        text-align: center;
        align-items: center;
    }

    .principles-section .section-title {
        max-width: 100%;
        text-align: center;
    }

    .principle-row {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }

    .principle-ordinal {
        font-size: 2.5rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }

    .footer-legal {
        gap: var(--space-5);
    }

    .footer-desc {
        max-width: 100%;
    }

    .section-header {
        margin-bottom: var(--space-10);
    }

    .section-desc {
        font-size: 1rem;
    }

    /* Ensure CTA section tag aligns center on mobile */
    .cta-inner .section-tag {
        margin-left: auto;
        margin-right: auto;
        display: inline-flex;
    }

    /* Studios hint visible on mobile */
    .studios-hint {
        display: block;
    }
}

/* Small mobile */
@media (max-width: 375px) {
    .hero-title {
        font-size: 2rem;
    }

    .studio-card {
        flex: 0 0 240px;
    }

    .cta-title {
        font-size: 1.75rem;
    }
}

/* Large screens */
@media (min-width: 1440px) {
    .container {
        max-width: 1320px;
    }

    .hero-title {
        font-size: 6.5rem;
    }
}

/* ============================================================
   TELEMETRY & EMPIRICAL METRICS STRIP (FEATURE 6)
   ============================================================ */
.metrics-strip,
.metrics-bar,
.system-status-bar {
    position: relative;
    z-index: 2;
    padding: var(--space-8) 0;
    margin-top: var(--space-12);
    border-top: 1px solid var(--border-hairline);
    border-bottom: 1px solid var(--border-hairline);
    background: var(--bg-surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    align-items: center;
}

.metric-item,
.metric-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    border-left: 2px solid var(--border-hairline);
}

.metric-item:first-child {
    border-left: none;
}

.metric-value-wrap {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.metric-number,
.mono-value,
.metric-val {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.metric-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-tertiary);
    letter-spacing: -0.01em;
    margin: 0;
    line-height: 1.35;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-emerald, #34D399);
    box-shadow: 0 0 10px var(--accent-emerald, #34D399);
    display: inline-block;
    flex-shrink: 0;
    animation: pulseGlow 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulseGlow {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.45; transform: scale(0.9); }
}

@media (max-width: 768px) {
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .metric-item {
        border-left: none;
        padding: var(--space-2) 0;
    }
}

@media (max-width: 480px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   ECOSYSTEM BENTO GRID (FEATURE 7)
   ============================================================ */
.ecosystem-section {
    position: relative;
    padding: var(--space-24) 0;
}

.bento-grid,
.ecosystem-bento,
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-12);
}

.bento-card,
.service-card,
.pillar-card {
    position: relative;
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: var(--radius-lg, 16px);
    padding: 32px;
    display: flex;
    flex-direction: column;
    transition: transform 0.28s var(--ease-spring, cubic-bezier(0.16, 1, 0.3, 1)),
                border-color 0.28s ease,
                box-shadow 0.28s ease;
    overflow: hidden;
}

.bento-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

.bento-large {
    grid-column: span 2;
}

.bento-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.bento-number {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.bento-pillar-name {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent-primary);
}

.bento-card h3,
.service-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    letter-spacing: -0.02em;
    line-height: 1.3;
    text-wrap: balance;
}

.bento-card p,
.service-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: var(--space-5);
    flex-grow: 1;
}

.bento-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: auto;
}

.bento-tag,
.pillar-tag,
.tag-item {
    font-size: 12px;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: var(--radius-full, 9999px);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-hairline);
    color: var(--text-secondary);
    line-height: 1.3;
}

[data-theme="light"] .bento-tag,
[data-theme="light"] .pillar-tag,
[data-theme="light"] .tag-item {
    background: rgba(0, 0, 0, 0.035);
}

@media (max-width: 900px) {
    .bento-grid,
    .ecosystem-bento,
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .bento-grid,
    .ecosystem-bento,
    .services-grid {
        grid-template-columns: 1fr;
    }

    .bento-large {
        grid-column: span 1 !important;
    }

    .bento-card,
    .service-card,
    .pillar-card {
        padding: 24px;
    }
}

/* ============================================================
   INTERACTIVE WORKBENCH & TECH SHOWCASE (FEATURE 8)
   ============================================================ */
.workbench-section,
#technology,
#workbench {
    position: relative;
    padding: var(--space-20) 0;
}

.workbench-container {
    max-width: 1040px;
    margin: var(--space-12) auto 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-hairline);
    border-radius: var(--radius-lg, 16px);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.workbench-tabs,
.tech-tabs,
.tabs-container {
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-hairline);
    padding: var(--space-2) var(--space-3);
    gap: var(--space-2);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.workbench-tab,
.tech-tab,
.demo-tab,
.tab-btn {
    appearance: none;
    background: transparent;
    border: 1px solid transparent;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-sm, 8px);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.workbench-tab:hover,
.tech-tab:hover {
    color: var(--text-primary);
    background: var(--bg-surface-hover);
}

.workbench-tab.is-active,
.tab-btn.active,
.tech-tab.is-active {
    color: var(--text-primary);
    background: var(--bg-surface);
    border-color: var(--border-hairline);
    box-shadow: var(--shadow-sm);
}

.workbench-panel {
    display: none;
    padding: var(--space-6);
}

.workbench-panel.is-active {
    display: block;
}

.code-window {
    background: #0d0f14;
    border-radius: var(--radius-md, 12px);
    padding: var(--space-5);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

pre,
code,
.code-snippet,
.workbench-code {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    color: #e2e8f0;
    overflow-x: auto;
    white-space: pre;
    margin: 0;
}

/* Syntax token highlights with high contrast (> 7:1 against #0d0f14) */
.tok-kw { color: #818CF8; font-weight: 600; }
.tok-fn { color: #38BDF8; }
.tok-str { color: #34D399; }
.tok-num { color: #F59E0B; }
.tok-com { color: #64748B; font-style: italic; }

.tech-marquee:hover .marquee-track {
    animation-play-state: paused;
}

/* ============================================================
   ARCHITECTURAL PRINCIPLES CARD STYLES (FEATURE 9)
   ============================================================ */
.principle-card,
.principle-item,
.about-card,
.pillar {
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: var(--radius-lg, 16px);
    padding: var(--space-6) var(--space-8);
    transition: border-color 0.25s ease;
}

.principle-card:hover,
.principle-item:hover {
    border-color: var(--border-hover);
}

.principle-num,
.pillar-number,
.step-num {
    font-family: var(--font-mono);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--accent-primary);
    letter-spacing: 0.04em;
    margin-bottom: var(--space-2);
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

@media (max-width: 900px) {
    .principles-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   COMPARISON MATRIX / WHY LUMIOR (FEATURE 10)
   ============================================================ */
.comparison-matrix,
.why-section,
#why {
    position: relative;
    padding: var(--space-20) 0;
}

.why-grid,
.comparison-grid,
.diff-grid,
.why-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-12);
}

.why-card,
.diff-card,
.comparison-col {
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: var(--radius-lg, 16px);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.why-card:hover,
.diff-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-hover);
}

.why-card-badge {
    align-self: flex-start;
    font-size: 0.75rem;
    font-weight: 700;
    font-family: var(--font-mono);
    padding: 3px 10px;
    border-radius: var(--radius-full, 9999px);
    background: rgba(99, 102, 241, 0.14);
    color: var(--accent-primary);
    border: 1px solid rgba(99, 102, 241, 0.28);
    letter-spacing: 0.04em;
}

.why-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.why-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin: 0;
}

.why-card .contrast-item {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    border-top: 1px solid var(--border-hairline);
    padding-top: var(--space-3);
    margin-top: auto;
}

@media (max-width: 768px) {
    .why-grid,
    .comparison-grid,
    .diff-grid,
    .why-cards {
        grid-template-columns: 1fr;
    }

    .why-card,
    .diff-card {
        padding: 24px;
    }
}

/* ============================================================
   PORTFOLIO, CONVERSION & FOOTER ACCESSIBILITY RULES
   ============================================================ */
.bento-card.clickable,
.portfolio-card a,
.app-card {
    display: block;
    text-decoration: none;
    color: inherit;
}

.contact-card,
.cta-card,
.cta-container {
    max-width: 840px;
    margin: 0 auto;
    text-align: center;
}

.footer-column a,
.footer-links a,
.footer a {
    display: inline-block;
    padding: 4px 0;
    margin-bottom: 4px;
}