/* ============================================
   American BMS - Design System & Styles
   ============================================ */

/* --- CSS Custom Properties (Theme System) --- */
:root {
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition-speed: 0.3s;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --container-max: 1200px;
    --nav-height: 72px;
}

/* Dark Theme (default) */
[data-theme="dark"] {
    --bg-primary: #0a0e1a;
    --bg-secondary: #0f1428;
    --bg-tertiary: #151b33;
    --bg-card: rgba(15, 20, 40, 0.8);
    --bg-card-hover: rgba(20, 28, 56, 0.9);
    --bg-glass: rgba(15, 20, 40, 0.6);
    --bg-nav: rgba(10, 14, 26, 0.85);

    --text-primary: #f0f2f8;
    --text-secondary: #a0a8c4;
    --text-tertiary: #6b7394;
    --text-inverse: #0a0e1a;

    --accent-blue: #3b82f6;
    --accent-blue-light: #60a5fa;
    --accent-red: #ef4444;
    --accent-red-light: #f87171;
    --gradient-start: #3b82f6;
    --gradient-end: #8b5cf6;

    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-strong: rgba(255, 255, 255, 0.15);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.15);

    --cert-un-bg: rgba(59, 130, 246, 0.15);
    --cert-un-color: #60a5fa;
    --cert-ul-bg: rgba(239, 68, 68, 0.15);
    --cert-ul-color: #f87171;
    --cert-iec-bg: rgba(16, 185, 129, 0.15);
    --cert-iec-color: #34d399;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #f8f9fc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0f2f7;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-card-hover: rgba(255, 255, 255, 1);
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-nav: rgba(248, 249, 252, 0.9);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --text-inverse: #ffffff;

    --accent-blue: #2563eb;
    --accent-blue-light: #3b82f6;
    --accent-red: #dc2626;
    --accent-red-light: #ef4444;
    --gradient-start: #2563eb;
    --gradient-end: #7c3aed;

    --border-color: rgba(0, 0, 0, 0.08);
    --border-color-strong: rgba(0, 0, 0, 0.15);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.1);

    --cert-un-bg: rgba(37, 99, 235, 0.1);
    --cert-un-color: #2563eb;
    --cert-ul-bg: rgba(220, 38, 38, 0.1);
    --cert-ul-color: #dc2626;
    --cert-iec-bg: rgba(5, 150, 105, 0.1);
    --cert-iec-color: #059669;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background var(--transition-speed), color var(--transition-speed);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* --- Typography --- */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-xl);
    font-family: var(--font-family);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: #fff;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(59, 130, 246, 0.4);
}

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

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

.btn-play {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--accent-blue);
    color: #fff;
    border-radius: 50%;
    font-size: 0.6rem;
}

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

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: transparent;
    transition: all var(--transition-speed);
}

.navbar.scrolled {
    background: var(--bg-nav);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.3rem;
    font-weight: 800;
    z-index: 1001;
}

.logo-icon { font-size: 1.5rem; }

.logo-accent { color: var(--accent-blue); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-links li a {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-speed);
}

.nav-links li a:hover,
.nav-links li a.active {
    color: var(--text-primary);
    background: var(--bg-glass);
}

.nav-cta {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end)) !important;
    color: #fff !important;
    border-radius: var(--radius-xl) !important;
}

.nav-cta:hover {
    opacity: 0.9;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Theme Toggle */
.theme-toggle {
    position: relative;
    width: 44px;
    height: 44px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed);
    overflow: hidden;
}

.theme-toggle:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-strong);
}

.theme-icon {
    position: absolute;
    font-size: 1.2rem;
    transition: all 0.4s ease;
}

[data-theme="dark"] .theme-icon.sun {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}
[data-theme="dark"] .theme-icon.moon {
    opacity: 0;
    transform: rotate(180deg) scale(0.5);
}
[data-theme="light"] .theme-icon.sun {
    opacity: 0;
    transform: rotate(-180deg) scale(0.5);
}
[data-theme="light"] .theme-icon.moon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    position: relative;
    z-index: 1001;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-speed);
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

.mobile-toggle.active .hamburger {
    background: transparent;
}
.mobile-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}
.mobile-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero, .page-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
    overflow: hidden;
}

.page-hero {
    min-height: 50vh;
    padding-bottom: 60px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.hero-glow {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(59, 130, 246, 0.12) 0%, transparent 60%);
    pointer-events: none;
}

[data-theme="light"] .hero-glow {
    background: radial-gradient(ellipse, rgba(37, 99, 235, 0.08) 0%, transparent 60%);
}

.hero-content {
    position: relative;
    text-align: center;
    padding: 40px 0 80px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-blue-light);
    margin-bottom: 28px;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-blue);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

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

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.stat { text-align: center; }

.stat-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

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

/* ============================================
   SECTIONS
   ============================================ */
.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: #fff;
    border-radius: var(--radius-xl);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   PILLARS GRID (About)
   ============================================ */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.pillar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.pillar-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.pillar-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-strong);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.pillar-card.visible:hover {
    transform: translateY(-4px);
}

.pillar-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    color: #fff;
}

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

.pillar-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.pillar-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* ============================================
   DIGITAL DNA (Split Layout)
   ============================================ */
.split-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.split-text .section-tag { margin-bottom: 12px; }

.split-text .section-title {
    text-align: left;
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    margin-bottom: 16px;
}

.split-text .section-subtitle {
    text-align: left;
    margin-bottom: 32px;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-item {
    display: flex;
    gap: 16px;
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.5s ease;
}

.feature-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.feature-dot {
    flex-shrink: 0;
    width: 10px;
    height: 10px;
    background: var(--accent-blue);
    border-radius: 50%;
    margin-top: 7px;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.4);
}

.feature-item h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.feature-item p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* DNA Visual */
.split-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.6s ease;
}

.split-visual.visible {
    opacity: 1;
    transform: scale(1);
}

.dna-visual {
    position: relative;
    width: 360px;
    height: 360px;
}

.dna-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--border-color-strong);
}

.dna-ring-1 {
    inset: 0;
    animation: spin 20s linear infinite;
    border-color: transparent;
    border-top-color: var(--accent-blue);
    border-right-color: rgba(59, 130, 246, 0.3);
}

.dna-ring-2 {
    inset: 30px;
    animation: spin 15s linear infinite reverse;
    border-color: transparent;
    border-bottom-color: var(--gradient-end);
    border-left-color: rgba(139, 92, 246, 0.3);
}

.dna-ring-3 {
    inset: 60px;
    animation: spin 10s linear infinite;
    border-color: transparent;
    border-top-color: var(--accent-red);
    border-right-color: rgba(239, 68, 68, 0.3);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.dna-core {
    position: absolute;
    inset: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border: 1px solid var(--border-color-strong);
    border-radius: 50%;
    backdrop-filter: blur(10px);
}

.dna-core svg {
    width: 64px;
    height: 64px;
    color: var(--accent-blue);
}

.dna-data-points {
    position: absolute;
    inset: 0;
}

.data-point {
    position: absolute;
    padding: 4px 10px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    font-weight: 600;
    font-family: 'SF Mono', 'Fira Code', monospace;
    color: var(--accent-blue-light);
    backdrop-filter: blur(5px);
    white-space: nowrap;
    animation: float 4s ease-in-out infinite;
}

.dp-1 { top: 5%; left: 60%; animation-delay: 0s; }
.dp-2 { top: 25%; right: -5%; animation-delay: 0.6s; }
.dp-3 { top: 60%; right: -10%; animation-delay: 1.2s; }
.dp-4 { bottom: 10%; left: 50%; animation-delay: 1.8s; }
.dp-5 { top: 55%; left: -10%; animation-delay: 2.4s; }
.dp-6 { top: 15%; left: -5%; animation-delay: 3s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ============================================
   SECURITY SECTION
   ============================================ */
.security-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.security-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.security-card.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.security-card.visible:hover {
    transform: translateY(-4px);
}

.security-card-featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(139, 92, 246, 0.08));
    border-color: rgba(59, 130, 246, 0.2);
    text-align: center;
}

.security-icon-large {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 50%;
    color: #fff;
}

.security-icon-large svg {
    width: 36px;
    height: 36px;
}

.security-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    color: var(--accent-blue);
}

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

.security-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.security-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* ============================================
   IMPACT SECTION
   ============================================ */
.impact-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.impact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.impact-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.impact-card:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.impact-card.visible:hover {
    transform: translateY(-4px);
}

.impact-number {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.impact-label {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.impact-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ============================================
   CERTIFICATIONS PREVIEW
   ============================================ */
.cert-preview-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.cert-preview-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.cert-preview-card.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.cert-preview-card.visible:hover {
    transform: translateY(-4px);
}

.cert-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 800;
    margin-bottom: 14px;
    background: var(--cert-un-bg);
    color: var(--cert-un-color);
}

.cert-preview-card:nth-child(2) .cert-badge,
.cert-preview-card:nth-child(3) .cert-badge {
    background: var(--cert-ul-bg);
    color: var(--cert-ul-color);
}

.cert-preview-card:nth-child(4) .cert-badge,
.cert-preview-card:nth-child(5) .cert-badge {
    background: var(--cert-iec-bg);
    color: var(--cert-iec-color);
}

.cert-preview-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.cert-preview-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.cert-cta { text-align: center; }

/* ============================================
   CERTIFICATIONS DETAIL PAGE
   ============================================ */
.cert-detail {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
    overflow: hidden;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.cert-detail.visible {
    opacity: 1;
    transform: translateY(0);
}

.cert-detail-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 32px;
    border-bottom: 1px solid var(--border-color);
}

.cert-detail-badge {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 800;
    background: var(--cert-un-bg);
    color: var(--cert-un-color);
}

.cert-detail-badge.ul {
    background: var(--cert-ul-bg);
    color: var(--cert-ul-color);
}

.cert-detail-badge.iec {
    background: var(--cert-iec-bg);
    color: var(--cert-iec-color);
}

.cert-detail-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 4px;
}

.cert-full-name {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.cert-detail-body {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 32px;
    padding: 32px;
}

.cert-detail-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
    margin-top: 24px;
}

.cert-detail-info h3:first-child { margin-top: 0; }

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

.cert-tests {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 12px;
}

.cert-tests li {
    display: flex;
    flex-direction: column;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent-blue);
}

.cert-tests li strong {
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.cert-tests li span {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.relevance-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 16px;
}

.relevance-card h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--accent-blue-light);
}

.relevance-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* CTA Block */
.cta-block {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-block h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.cta-block p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-content {
    max-width: 700px;
    margin: 0 auto;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color-strong);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.92rem;
    transition: all var(--transition-speed);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-group textarea { resize: vertical; }

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7394' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 12px;
    line-height: 1.6;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
    color: var(--text-tertiary);
}

.footer-links ul { display: flex; flex-direction: column; gap: 10px; }

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color var(--transition-speed);
}

.footer-links a:hover { color: var(--accent-blue-light); }

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--text-tertiary);
}

/* ============================================
   PAGE HERO SMALL (Legal pages)
   ============================================ */
.page-hero-sm {
    min-height: 35vh;
    padding-bottom: 40px;
}

/* ============================================
   LEGAL CONTENT
   ============================================ */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-section {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.legal-section:last-child {
    border-bottom: none;
}

.legal-section h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.legal-section h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 20px;
    margin-bottom: 10px;
}

.legal-section p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 12px;
}

.legal-section ul {
    margin: 12px 0;
    padding-left: 20px;
}

.legal-section ul li {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 8px;
    list-style: disc;
}

.legal-table {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: 16px 0;
}

.legal-table-row {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 16px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.legal-table-row:last-child { border-bottom: none; }

.legal-table-row.header {
    background: var(--bg-tertiary);
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ============================================
   TRACEABILITY VISUAL
   ============================================ */
.traceability-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.trace-chain {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.trace-node {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    width: 220px;
    transition: all 0.3s ease;
}

.trace-node.active {
    border-color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.08);
    box-shadow: var(--shadow-glow);
}

.trace-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    color: var(--accent-blue);
}

.trace-node.active .trace-icon {
    background: var(--accent-blue);
    color: #fff;
}

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

.trace-node span {
    font-size: 0.88rem;
    font-weight: 600;
}

.trace-line {
    width: 2px;
    height: 20px;
    background: linear-gradient(to bottom, var(--accent-blue), var(--border-color-strong));
}

/* ============================================
   FEOC GRID
   ============================================ */
.feoc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feoc-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.feoc-card.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.feoc-card.visible:hover {
    transform: translateY(-4px);
}

.feoc-featured {
    grid-column: 1 / -1;
    text-align: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(139, 92, 246, 0.08));
    border-color: rgba(59, 130, 246, 0.2);
}

.feoc-icon-wrap {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 50%;
    color: #fff;
}

.feoc-icon-wrap svg { width: 32px; height: 32px; }

.feoc-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: #fff;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 800;
    margin-bottom: 14px;
}

.feoc-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.feoc-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* ============================================
   SCALE GRID (Fleet / Digital Twin)
   ============================================ */
.scale-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}

.scale-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.scale-card.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.scale-card.visible:hover {
    transform: translateY(-4px);
}

.scale-card.featured {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.scale-header {
    padding: 24px 28px;
    display: flex;
    align-items: center;
    gap: 14px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.scale-header svg {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.scale-header.residential { color: var(--accent-blue); }
.scale-header.ci { color: var(--gradient-end); }
.scale-header.utility { color: var(--accent-red); }

.scale-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.scale-popular {
    position: absolute;
    top: 12px;
    right: 16px;
    padding: 4px 10px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: #fff;
    border-radius: var(--radius-xl);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

.scale-features {
    padding: 24px 28px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.scale-features li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding-left: 20px;
    position: relative;
    line-height: 1.5;
}

.scale-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--accent-blue);
    border-radius: 50%;
    opacity: 0.6;
}

/* ============================================
   COMPLIANCE VISUAL
   ============================================ */
.split-content.reverse {
    direction: rtl;
}

.split-content.reverse > * {
    direction: ltr;
}

.compliance-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.compliance-doc {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 380px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.doc-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.doc-badge {
    padding: 3px 8px;
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.05em;
}

.doc-title {
    font-size: 0.85rem;
    font-weight: 600;
}

.doc-body { padding: 8px 0; }

.doc-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border-color);
}

.doc-row:last-child { border-bottom: none; }

.doc-row span:first-child {
    color: var(--text-secondary);
}

.doc-status {
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
}

.doc-status.pass {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
}

/* ============================================
   CELL LIBRARY (Digital Twin)
   ============================================ */
.cell-section {
    margin-bottom: 60px;
}

.cell-section-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--accent-blue);
    display: inline-block;
}

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

.cell-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.cell-card.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.cell-card.visible:hover {
    transform: translateY(-4px);
}

.cell-capacity {
    padding: 24px;
    text-align: center;
    font-size: 2.2rem;
    font-weight: 900;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(139, 92, 246, 0.08));
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    border-bottom: 1px solid var(--border-color);
}

.cell-details {
    padding: 24px;
}

.cell-tag {
    display: inline-block;
    padding: 3px 10px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-blue-light);
    margin-bottom: 10px;
}

.cell-details p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.cell-details ul {
    padding-left: 16px;
}

.cell-details ul li {
    font-size: 0.82rem;
    color: var(--text-tertiary);
    line-height: 1.6;
    list-style: disc;
}

/* Chemistry Grid */
.chem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.chem-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.chem-card.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.chem-card.visible:hover {
    transform: translateY(-4px);
}

.chem-name {
    font-size: 1.8rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2px;
}

.chem-full {
    font-size: 0.82rem;
    color: var(--text-tertiary);
    font-weight: 500;
    margin-bottom: 12px;
}

.chem-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 16px;
}

.chem-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.chem-tags span {
    padding: 4px 10px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* ============================================
   SIMULATION GRID (Digital Twin)
   ============================================ */
.sim-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.sim-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.sim-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.sim-card:hover {
    border-color: var(--border-color-strong);
}

.sim-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.sim-icon svg { width: 28px; height: 28px; color: #fff; }

.sim-icon.thermal { background: linear-gradient(135deg, #ef4444, #f97316); }
.sim-icon.mechanical { background: linear-gradient(135deg, #8b5cf6, #6366f1); }
.sim-icon.electrical { background: linear-gradient(135deg, #3b82f6, #06b6d4); }

.sim-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.sim-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.sim-features {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.sim-feature h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.sim-feature p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

/* ============================================
   WORKFLOW STEPS (Digital Twin)
   ============================================ */
.workflow-steps {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.workflow-step {
    display: flex;
    gap: 24px;
    padding: 28px 0;
    border-bottom: 1px solid var(--border-color);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease;
}

.workflow-step.visible {
    opacity: 1;
    transform: translateY(0);
}

.workflow-step:last-child { border-bottom: none; }

.step-number {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: #fff;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 800;
}

.step-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.step-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* Value Stats (reuses impact-stats layout) */
.value-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

/* ============================================
   HERO ANIMATIONS & PARTICLES
   ============================================ */

/* Floating Particles */
.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    background: var(--accent-blue);
    border-radius: 50%;
    animation: particleFloat linear infinite;
    box-shadow: 0 0 6px var(--accent-blue);
}

@keyframes particleFloat {
    0% { transform: translateY(0) translateX(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100vh) translateX(30px); opacity: 0; }
}

/* Orbit Rings */
.hero-orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 700px;
    height: 700px;
    pointer-events: none;
}

.orbit-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid transparent;
    animation: orbitSpin linear infinite;
}

.orbit-ring-1 {
    inset: 0;
    border-top-color: rgba(59, 130, 246, 0.25);
    border-right-color: rgba(59, 130, 246, 0.08);
    animation-duration: 25s;
}

.orbit-ring-2 {
    inset: 60px;
    border-bottom-color: rgba(139, 92, 246, 0.2);
    border-left-color: rgba(139, 92, 246, 0.06);
    animation-duration: 18s;
    animation-direction: reverse;
}

.orbit-ring-3 {
    inset: 120px;
    border-top-color: rgba(239, 68, 68, 0.15);
    border-right-color: rgba(239, 68, 68, 0.05);
    animation-duration: 30s;
}

@keyframes orbitSpin {
    to { transform: rotate(360deg); }
}

[data-theme="light"] .orbit-ring-1 { border-top-color: rgba(37, 99, 235, 0.15); border-right-color: rgba(37, 99, 235, 0.05); }
[data-theme="light"] .orbit-ring-2 { border-bottom-color: rgba(124, 58, 237, 0.12); border-left-color: rgba(124, 58, 237, 0.04); }
[data-theme="light"] .orbit-ring-3 { border-top-color: rgba(220, 38, 38, 0.1); border-right-color: rgba(220, 38, 38, 0.03); }
[data-theme="light"] .particle { box-shadow: 0 0 6px rgba(37, 99, 235, 0.6); }

/* Typewriter */
.typewriter {
    display: inline;
    border-right: 3px solid var(--accent-blue);
    animation: blink 0.8s step-end infinite;
}

.typewriter-done {
    border-right-color: transparent;
    animation: blink 0.8s step-end infinite 2s;
}

@keyframes blink {
    50% { border-color: transparent; }
}

/* Hero entrance animations */
.animate-fade-in {
    animation: heroFadeIn 0.8s ease 0.3s both;
}

.animate-slide-up {
    animation: heroSlideUp 0.8s ease 1.8s both;
}

.animate-fade-in-delay {
    animation: heroFadeIn 0.8s ease 2.4s both;
}

.animate-fade-in-delay-2 {
    animation: heroFadeIn 0.8s ease 2.8s both;
}

@keyframes heroFadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes heroSlideUp {
    from { opacity: 0; transform: translateY(30px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Glowing CTA button */
.btn-glow {
    position: relative;
    overflow: visible;
}

.btn-glow::before {
    content: '';
    position: absolute;
    inset: -3px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: inherit;
    opacity: 0;
    filter: blur(12px);
    transition: opacity 0.4s ease;
    z-index: -1;
}

.btn-glow:hover::before {
    opacity: 0.6;
}

/* Floating Hero Data Tags */
.hero-floating-data {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-data-tag {
    position: absolute;
    padding: 5px 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
    font-family: 'SF Mono', 'Fira Code', monospace;
    color: var(--accent-blue-light);
    backdrop-filter: blur(5px);
    animation: floatTag 5s ease-in-out infinite;
    opacity: 0.7;
}

.hd-1 { top: 15%; left: 5%; animation-delay: 0s; }
.hd-2 { top: 30%; right: 3%; animation-delay: 1.2s; }
.hd-3 { bottom: 25%; left: 8%; animation-delay: 2.4s; }
.hd-4 { bottom: 15%; right: 6%; animation-delay: 3.6s; }

@keyframes floatTag {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    33% { transform: translateY(-12px) rotate(1deg); }
    66% { transform: translateY(6px) rotate(-1deg); }
}

/* Animated gradient border on card hover */
.pillar-card::before,
.security-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end), var(--accent-red), var(--gradient-start));
    background-size: 300% 300%;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
    animation: gradientShift 4s ease infinite;
}

.pillar-card,
.security-card {
    position: relative;
    z-index: 0;
}

.pillar-card:hover::before,
.security-card:hover::before {
    opacity: 1;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Scanline effect for hero */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(59, 130, 246, 0.015) 2px,
        rgba(59, 130, 246, 0.015) 4px
    );
    pointer-events: none;
    z-index: 1;
}

[data-theme="light"] .hero::after {
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(37, 99, 235, 0.01) 2px,
        rgba(37, 99, 235, 0.01) 4px
    );
}

.hero-content {
    position: relative;
    z-index: 2;
}

/* ============================================
   GENERAL ANIMATIONS
   ============================================ */
.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .pillars-grid { grid-template-columns: repeat(2, 1fr); }
    .impact-stats, .value-stats { grid-template-columns: repeat(2, 1fr); }
    .cert-preview-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .cert-detail-body { grid-template-columns: 1fr; }
    .feoc-grid { grid-template-columns: repeat(2, 1fr); }
    .scale-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .sim-grid { grid-template-columns: 1fr; }
    .cell-grid, .chem-grid { grid-template-columns: repeat(2, 1fr); }
    .legal-table-row { grid-template-columns: 1fr; gap: 4px; }
}

@media (max-width: 768px) {
    .mobile-toggle { display: flex; align-items: center; justify-content: center; }
    .hero-orbit { width: 400px; height: 400px; }
    .hero-floating-data { display: none; }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        padding: 24px;
        transform: translateX(100%);
        transition: transform 0.4s ease;
        z-index: 1000;
    }

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

    .nav-links li a {
        font-size: 1.2rem;
        padding: 12px 20px;
    }

    .split-content { grid-template-columns: 1fr; gap: 40px; }
    .split-text .section-title,
    .split-text .section-subtitle { text-align: center; }

    .dna-visual { width: 280px; height: 280px; }
    .dna-core { inset: 80px; }
    .dna-ring-2 { inset: 22px; }
    .dna-ring-3 { inset: 44px; }

    .pillars-grid { grid-template-columns: 1fr; }
    .security-grid { grid-template-columns: 1fr; }
    .impact-stats, .value-stats { grid-template-columns: 1fr; }
    .cert-preview-grid { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .feoc-grid { grid-template-columns: 1fr; }
    .cell-grid, .chem-grid { grid-template-columns: 1fr; }
    .split-content.reverse { direction: ltr; }

    .hero-stats { gap: 20px; }
    .stat-divider { display: none; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2rem; }
    .section { padding: 60px 0; }
    .cert-preview-grid { grid-template-columns: 1fr; }
    .cert-detail-header { flex-direction: column; text-align: center; }
}