/* ================================================
   AMYNUO 心镜AI — Premium Design System v5.0
   Linear / Vercel-tier aesthetic
   ================================================ */

/* === DESIGN TOKENS === */
:root {
    /* Cosmos Palette */
    --cosmos: #070B14;
    --cosmos-deep: #040608;
    --cosmos-surface: #0D1117;

    /* Accent Colors */
    --purple: #7C3AED;
    --purple-soft: rgba(124, 58, 237, 0.15);
    --purple-glow: rgba(124, 58, 237, 0.4);
    --cyan: #06B6D4;
    --cyan-soft: rgba(6, 182, 212, 0.15);
    --warm: #F59E0B;
    --warm-soft: rgba(245, 158, 11, 0.15);
    --green: #10B981;
    --green-soft: rgba(16, 185, 129, 0.15);

    /* Gradients */
    --gradient-brand: linear-gradient(135deg, var(--purple), var(--cyan));
    --gradient-text: linear-gradient(135deg, #A78BFA, #67E8F9);
    --gradient-card: linear-gradient(160deg, rgba(255,255,255,0.04) 0%, rgba(255,255,255,0.01) 100%);

    /* Glass */
    --glass: rgba(255, 255, 255, 0.025);
    --glass-hover: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.06);
    --glass-border-hover: rgba(124, 58, 237, 0.25);

    /* Text */
    --text-primary: #F5F5F7;
    --text-secondary: rgba(245, 245, 247, 0.7);
    --text-muted: rgba(245, 245, 247, 0.45);

    /* Typography */
    --font-display: 'Space Grotesk', system-ui, sans-serif;
    --font-body: 'DM Sans', system-ui, sans-serif;

    /* Spacing */
    --section-gap: 140px;
    --container-max: 1200px;
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-pill: 100px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --t-fast: 0.2s;
    --t-smooth: 0.4s;
    --t-reveal: 0.9s;
}

/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
    font-family: var(--font-body);
    background: var(--cosmos);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }

/* === NOISE OVERLAY === */
.noise-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    mix-blend-mode: overlay;
}

/* === CONTAINER === */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 32px;
}

/* === SECTION BASE === */
.section {
    padding: var(--section-gap) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--purple);
    margin-bottom: 20px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

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

/* === NAVBAR === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 32px;
    height: 72px;
    display: flex;
    align-items: center;
    transition: background var(--t-smooth) ease, backdrop-filter var(--t-smooth) ease, box-shadow var(--t-smooth) ease;
}

.navbar.scrolled {
    background: rgba(7, 11, 20, 0.85);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: 0 1px 0 var(--glass-border);
}

.nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-img {
    width: 36px;
    height: 36px;
    object-fit: contain;
    border-radius: 8px;
}

.logo-text {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.logo-ai {
    font-weight: 400;
    color: var(--purple);
    margin-left: 2px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a:not(.nav-cta) {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--t-fast) ease;
    position: relative;
}

.nav-links a:not(.nav-cta):hover { color: var(--text-primary); }

.nav-links a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--purple);
    transition: width var(--t-smooth) var(--ease-out);
}

.nav-links a:not(.nav-cta):hover::after { width: 100%; }

.nav-lang {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--t-fast) ease;
}

.nav-lang:hover {
    background: var(--purple-soft);
    border-color: var(--glass-border-hover);
    color: var(--text-primary);
}

.nav-cta {
    background: var(--purple);
    color: #fff;
    padding: 8px 22px;
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--t-smooth) var(--ease-out);
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.15);
}

.nav-cta:hover {
    background: #6D28D9;
    box-shadow: 0 0 40px rgba(124, 58, 237, 0.3);
    transform: translateY(-1px);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
}

.nav-hamburger span {
    width: 20px;
    height: 1.5px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: all var(--t-fast) ease;
}

/* === BUTTONS === */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 36px;
    background: var(--purple);
    color: #fff;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-pill);
    border: none;
    cursor: pointer;
    transition: all var(--t-smooth) var(--ease-out);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(124, 58, 237, 0.2);
    text-decoration: none;
}

.btn-primary:hover {
    background: #6D28D9;
    transform: translateY(-2px);
    box-shadow: 0 8px 40px rgba(124, 58, 237, 0.35);
}

/* Shimmer sweep */
.btn-shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.15) 50%, transparent 100%);
    transition: none;
    animation: shimmerSweep 3s ease-in-out infinite;
}

@keyframes shimmerSweep {
    0%, 100% { left: -100%; }
    50% { left: 100%; }
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-pill);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: all var(--t-smooth) var(--ease-out);
    text-decoration: none;
}

.btn-ghost:hover {
    border-color: var(--glass-border-hover);
    color: var(--text-primary);
    background: var(--purple-soft);
}

/* === HERO === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 120px 32px 80px;
}

.hero #constellation-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-ambient {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
}

.hero-ambient.a1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(124,58,237,0.12), transparent 70%);
    top: -10%;
    left: -5%;
}

.hero-ambient.a2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6,182,212,0.08), transparent 70%);
    bottom: -15%;
    right: -5%;
}

.hero-ambient.a3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(245,158,11,0.05), transparent 70%);
    top: 40%;
    right: 20%;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
    margin-bottom: 40px;
}

.badge-pulse {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 8px var(--green);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 16px;
}

.hero-line {
    display: block;
}

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

.hero-tagline {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 32px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 48px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-line {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, var(--text-muted), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 0.8; transform: scaleY(1.15); }
}

/* === CARDS === */
.card-grid {
    display: grid;
    gap: 24px;
}

.card-grid.col-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid.col-2 { grid-template-columns: repeat(2, 1fr); }

.glass-card {
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 44px 36px;
    position: relative;
    transition: all var(--t-smooth) var(--ease-out);
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, transparent 40%, rgba(124,58,237,0.15) 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--t-smooth) ease;
    pointer-events: none;
}

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

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

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: var(--purple-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.card-icon svg {
    width: 24px;
    height: 24px;
    color: var(--purple);
}

.glass-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.glass-card p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Feature card icon variants */
.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: var(--purple-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    transition: all var(--t-smooth) var(--ease-out);
}

.feature-icon svg { width: 28px; height: 28px; color: var(--purple); }
.feature-icon.icon-cyan { background: var(--cyan-soft); }
.feature-icon.icon-cyan svg { color: var(--cyan); }
.feature-icon.icon-warm { background: var(--warm-soft); }
.feature-icon.icon-warm svg { color: var(--warm); }

.feature-card:hover .feature-icon {
    transform: scale(1.08);
    box-shadow: 0 0 24px var(--purple-soft);
}

/* Scenario card number */
.scenario-num {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: rgba(124, 58, 237, 0.08);
    position: absolute;
    top: 24px;
    right: 32px;
    line-height: 1;
    letter-spacing: -0.03em;
    transition: color var(--t-smooth) ease;
}

.scenario-card:hover .scenario-num {
    color: rgba(124, 58, 237, 0.15);
}

/* === SPLIT LAYOUT (Solution) === */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.split-text .section-label { justify-content: flex-start; }
.split-text .section-title { text-align: left; }
.split-text .section-desc { text-align: left; margin: 0 0 40px; }

.capability-list { display: flex; flex-direction: column; gap: 20px; }

.cap-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    background: var(--glass);
    border: 1px solid transparent;
    transition: all var(--t-smooth) var(--ease-out);
}

.cap-item:hover {
    background: var(--glass-hover);
    border-color: var(--glass-border);
}

.cap-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}

.dot-purple { background: var(--purple); box-shadow: 0 0 12px var(--purple-glow); }
.dot-cyan { background: var(--cyan); box-shadow: 0 0 12px rgba(6,182,212,0.4); }
.dot-warm { background: var(--warm); box-shadow: 0 0 12px rgba(245,158,11,0.4); }
.dot-green { background: var(--green); box-shadow: 0 0 12px rgba(16,185,129,0.4); }

.cap-item strong {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    display: block;
    margin-bottom: 4px;
}

.cap-item small {
    font-size: 0.82rem;
    color: var(--text-muted);
    display: block;
}

/* Orb animation */
.split-visual { display: flex; justify-content: center; align-items: center; }

.orb-container {
    position: relative;
    width: 280px;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orb-ring {
    position: absolute;
    border-radius: 50%;
    background-image: url('../assets/ring_v1.webp');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    animation: orbSpin linear infinite;
    mix-blend-mode: screen;
}

.ring-1 {
    width: 140%;
    height: 140%;
    opacity: 0.8;
    animation-duration: 45s;
}

.ring-2 {
    width: 110%;
    height: 110%;
    opacity: 0.6;
    animation-duration: 35s;
    animation-direction: reverse;
}

.ring-3 {
    width: 80%;
    height: 80%;
    opacity: 0.4;
    animation-duration: 25s;
}

@keyframes orbSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.orb-core {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(124,58,237,0.15), rgba(6,182,212,0.08), transparent);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 80px rgba(124,58,237,0.15), inset 0 0 30px rgba(124,58,237,0.1);
    animation: orbBreathe 4s ease-in-out infinite;
}

.orb-logo {
    width: 52px;
    height: 52px;
    object-fit: contain;
    filter: drop-shadow(0 0 20px rgba(124,58,237,0.3));
}

@keyframes orbBreathe {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* === HCE GRID === */
.hce-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 24px;
    position: relative;
}

.hce-core-visual {
    grid-column: 2;
    grid-row: 1 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hce-pulse {
    position: absolute;
    width: 350px;
    height: 350px;
    background: url('../assets/pulse.webp') center/contain no-repeat;
    mix-blend-mode: screen;
    animation: pulseBreathe 6s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes pulseBreathe {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.hce-core-orb {
    position: relative;
    z-index: 1;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: var(--gradient-brand);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.4rem;
    letter-spacing: 2px;
    box-shadow: 0 0 80px var(--purple-glow), 0 0 160px rgba(124,58,237,0.1);
    animation: orbBreathe 4s ease-in-out infinite;
}

.hce-core-orb small {
    font-size: 0.65rem;
    font-weight: 400;
    opacity: 0.7;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.hce-card {
    padding: 32px 28px;
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: all var(--t-smooth) var(--ease-out);
}

.hce-card:hover {
    background: var(--glass-hover);
    border-color: var(--glass-border-hover);
    transform: scale(1.02);
}

.hce-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-bottom: 16px;
}

.hce-card h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.hce-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* === STATS === */
.section-stats { padding: 100px 0; }

.stats-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    padding: 48px 64px;
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
}

.stat-item { text-align: center; flex: 1; }

.stat-num {
    font-family: var(--font-display);
    font-size: 2.8rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-divider {
    width: 1px;
    height: 48px;
    background: var(--glass-border);
}

/* === VISION === */
.section-vision {
    text-align: center;
    overflow: hidden;
}

.vision-glow {
    position: absolute;
    width: 800px;
    height: 800px;
    border-radius: 50%;
    background: url('../assets/gateway.webp') center/cover no-repeat;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    mask-image: radial-gradient(circle, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(circle, black 30%, transparent 70%);
    pointer-events: none;
    opacity: 0.6;
    mix-blend-mode: screen;
}

.vision-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.vision-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.3;
    margin-bottom: 28px;
}

.vision-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

/* === CTA === */
.section-cta { padding-bottom: var(--section-gap); }

.cta-card {
    max-width: 600px;
    margin: 0 auto;
    padding: 72px 56px;
    text-align: center;
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-brand);
}

.cta-card h3 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.cta-card p {
    color: var(--text-secondary);
    margin-bottom: 36px;
}

.cta-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* === FOOTER === */
.site-footer {
    background: var(--cosmos-deep);
    border-top: 1px solid var(--glass-border);
    padding: 72px 0 36px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 52px;
}

.footer-brand .nav-logo { margin-bottom: 16px; }

.footer-tagline {
    font-size: 0.88rem;
    color: var(--text-muted);
    max-width: 280px;
    line-height: 1.7;
}

.footer-col h5 {
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.footer-col a {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    transition: color var(--t-fast) ease;
}

.footer-col a:hover { color: var(--purple); }

.footer-bottom {
    padding-top: 28px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.footer-slogan {
    font-family: var(--font-display);
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

/* === SCROLL REVEAL === */
.reveal {
    opacity: 0;
    transform: perspective(1000px) rotateX(4deg) translateY(40px) scale(0.97);
    transition: all var(--t-reveal) var(--ease-out);
}

.reveal.visible {
    opacity: 1;
    transform: perspective(1000px) rotateX(0) translateY(0) scale(1);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    :root { --section-gap: 120px; }
    .container { padding: 0 24px; }
    .split-layout { grid-template-columns: 1fr; gap: 60px; }
    .split-visual { order: -1; }
    .orb-container { width: 280px; height: 280px; }
    .hce-grid { grid-template-columns: 1fr 1fr; }
    .hce-core-visual { grid-column: 1 / -1; grid-row: auto; margin-bottom: 16px; }
}

@media (max-width: 768px) {
    :root { --section-gap: 100px; }
    .container { padding: 0 20px; }
    .navbar { padding: 0 20px; }
    .nav-links { display: none; position: fixed; top: 72px; left: 0; right: 0; bottom: 0; background: rgba(7,11,20,0.97); backdrop-filter: blur(24px); flex-direction: column; align-items: center; justify-content: center; gap: 24px; }
    .nav-links.mobile-open { display: flex; }
    .nav-hamburger { display: flex; }
    .hero h1 { font-size: clamp(2.2rem, 10vw, 3.5rem); }
    .hero-subtitle { font-size: 0.95rem; }
    .card-grid.col-3, .card-grid.col-2 { grid-template-columns: 1fr; }
    .hce-grid { grid-template-columns: 1fr; }
    .stats-bar { flex-direction: column; gap: 24px; padding: 36px 24px; }
    .stat-divider { width: 80px; height: 1px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
    .hero-actions { flex-direction: column; align-items: center; }
    .btn-primary, .btn-ghost { width: 100%; max-width: 280px; }
    .nav-lang {
        position: fixed;
        bottom: 20px;
        right: 20px;
        z-index: 999;
        padding: 10px 18px;
        font-size: 0.85rem;
        background: rgba(7,11,20,0.92);
        backdrop-filter: blur(20px);
        box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 2rem; }
    .section-title { font-size: 1.6rem; }
    .glass-card { padding: 32px 24px; }
    .cta-card { padding: 48px 24px; }
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .reveal { opacity: 1; transform: none; }
}