/* ═══════════════════════════════════════════════════════════════
   ICYWALL — Corporate Website Stylesheet
   Design System: Dark theme with icy blue accents
   ═══════════════════════════════════════════════════════════════ */

/* ─── CSS Custom Properties ─── */
:root {
    /* Colors */
    --bg-primary: #0a0b0f;
    --bg-secondary: #111218;
    --bg-tertiary: #181a24;
    --bg-card: #13141c;
    --bg-card-hover: #1a1c28;

    --text-primary: #e8eaf0;
    --text-secondary: #8b8fa4;
    --text-tertiary: #5a5e73;

    --accent: #3b82f6;
    --accent-light: #60a5fa;
    --accent-dark: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --accent-glow-strong: rgba(59, 130, 246, 0.3);

    --cyan: #06b6d4;
    --cyan-glow: rgba(6, 182, 212, 0.15);

    --gradient-primary: linear-gradient(135deg, #3b82f6, #06b6d4);
    --gradient-text: linear-gradient(135deg, #60a5fa, #22d3ee);
    --gradient-card: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(6, 182, 212, 0.04));

    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --border-accent: rgba(59, 130, 246, 0.3);

    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;

    /* Spacing */
    --section-padding: 120px;
    --container-max: 1200px;
    --container-padding: 24px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Borders */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

img {
    max-width: 100%;
    display: block;
    /* 4K & High DPI Optimization */
    image-rendering: -webkit-optimize-contrast;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

input, textarea {
    font-family: inherit;
}

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

/* ─── Utility Classes ─── */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

/* ─── Cursor Glow ─── */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* ═══════════════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════════════ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.4s var(--ease-out);
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(10, 11, 15, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 10;
    transition: transform 0.3s var(--ease-out);
}

.nav-logo:hover {
    transform: translateY(-2px);
}

.logo-icon {
    width: 36px;
    height: 36px;
    color: var(--accent-light);
    object-fit: contain;
    display: block;
    
    /* 4K Enhancement and Image Quality */
    image-rendering: crisp-edges;
    image-rendering: -webkit-optimize-contrast;
    filter: brightness(1.05) contrast(1.15) saturate(1.1) drop-shadow(0 0 2px rgba(96, 165, 250, 0.3));
    transition: all 0.3s var(--ease-out);
    
    /* High DPI Support */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.logo-icon:hover {
    filter: brightness(1.2) contrast(1.2) saturate(1.25) drop-shadow(0 0 8px rgba(96, 165, 250, 0.6));
    transform: scale(1.08);
}

@media (min-width: 768px) {
    .logo-icon {
        width: 40px;
        height: 40px;
    }
}

/* Support for high-resolution displays (4K and beyond) */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo-icon {
        width: 36px;
        height: 36px;
        /* Ensure the logo scales properly on high DPI displays */
        image-rendering: -webkit-optimize-contrast;
    }
}

.logo-text {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--text-primary);
}

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

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.3s;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
    transition: width 0.3s var(--ease-out);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    z-index: 10;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ─── Mobile Nav ─── */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        inset: 0;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 32px;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s;
    }

    .nav-links.open {
        opacity: 1;
        pointer-events: all;
    }

    .nav-links .nav-link {
        font-size: 24px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-actions .btn-ghost,
    .nav-actions .btn-primary {
        display: none;
    }
}

/* ═══════════════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════════════ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--gradient-primary);
    color: white;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all 0.3s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: transparent;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-hover);
    transition: all 0.3s var(--ease-out);
}

.btn-outline:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-2px);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    padding: 8px;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all 0.3s;
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

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

/* ═══════════════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════════════ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 60px;
    overflow: hidden;
}

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

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 40% at 50% 0%, rgba(59, 130, 246, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 40% 30% at 70% 20%, rgba(6, 182, 212, 0.06) 0%, transparent 50%);
}

.floating-particles,
.hero-particles {
    position: absolute;
    inset: 0;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--accent-light);
    border-radius: 50%;
    opacity: 0;
    animation: particle-float 6s ease-in-out infinite;
}

@keyframes particle-float {
    0%, 100% { opacity: 0; transform: translateY(0); }
    50% { opacity: 0.6; transform: translateY(-40px); }
}

.hero-container {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    color: var(--accent-light);
    margin-bottom: 32px;
    animation: fade-in-up 0.8s var(--ease-out) 0.2s both;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
    animation: fade-in-up 0.8s var(--ease-out) 0.4s both;
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    animation: fade-in-up 0.8s var(--ease-out) 0.6s both;
}

.hero-subtitle strong {
    color: var(--text-primary);
    font-weight: 600;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    animation: fade-in-up 0.8s var(--ease-out) 0.8s both;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin-top: 64px;
    animation: fade-in-up 0.8s var(--ease-out) 1s both;
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.stat-suffix {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-light);
}

.stat-label {
    display: block;
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ─── Hero Dashboard Preview ─── */
.hero-visual {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 900px;
    margin: 60px auto 0;
    animation: fade-in-up 1s var(--ease-out) 1.2s both;
}

.dashboard-preview {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow:
        0 4px 24px rgba(0, 0, 0, 0.3),
        0 0 80px var(--accent-glow);
}

.preview-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.preview-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #22c55e; }

.preview-title {
    font-size: 13px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.preview-body {
    display: flex;
    min-height: 280px;
}

.preview-sidebar {
    width: 180px;
    padding: 16px;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.sidebar-item.active {
    background: var(--accent-glow);
    color: var(--accent-light);
    border: 1px solid var(--border-accent);
}

.sidebar-icon {
    font-size: 14px;
}

.preview-main {
    flex: 1;
    padding: 16px;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.device-card {
    padding: 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: all 0.3s;
}

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

.device-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.device-card.online .device-status { background: var(--success); box-shadow: 0 0 8px rgba(34, 197, 94, 0.4); }
.device-card.offline .device-status { background: var(--text-tertiary); }
.device-card.exam .device-status { background: var(--warning); box-shadow: 0 0 8px rgba(245, 158, 11, 0.4); animation: pulse-dot 2s ease-in-out infinite; }

.device-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.device-info {
    font-size: 11px;
    color: var(--text-tertiary);
}

@media (max-width: 768px) {
    .preview-sidebar {
        display: none;
    }

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

    .hero-stats {
        gap: 24px;
    }

    .stat-value {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

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

/* ═══════════════════════════════════════════════════════════════
   SECTION COMMONS
   ═══════════════════════════════════════════════════════════════ */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-light);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.section-desc {
    font-size: 17px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════════════════
   PRODUCT SECTION
   ═══════════════════════════════════════════════════════════════ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.product-card {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s;
}

.product-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

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

.product-card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    color: var(--accent-light);
}

.product-card-icon svg {
    width: 28px;
    height: 28px;
}

.product-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.product-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

    .product-card {
        padding: 28px;
    }
}

/* ═══════════════════════════════════════════════════════════════
   FEATURES SECTION
   ═══════════════════════════════════════════════════════════════ */
.features-section {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.feature-item {
    display: flex;
    gap: 24px;
    padding: 32px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    transition: all 0.4s var(--ease-out);
    opacity: 0;
    transform: translateY(20px);
}

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

.feature-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.feature-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--bg-tertiary);
    line-height: 1;
    flex-shrink: 0;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.3;
}

.feature-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

/* ═══════════════════════════════════════════════════════════════
   HOW IT WORKS
   ═══════════════════════════════════════════════════════════════ */
.steps-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.step-card {
    flex: 1;
    max-width: 320px;
    padding: 40px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.4s var(--ease-out);
}

.step-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    color: white;
    font-size: 18px;
    font-weight: 800;
    border-radius: 50%;
    margin-bottom: 24px;
}

.step-visual {
    margin: 0 auto 24px;
    width: 120px;
    height: 80px;
    color: var(--accent-light);
    opacity: 0.6;
}

.step-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.step-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.step-connector {
    color: var(--text-tertiary);
    flex-shrink: 0;
    width: 60px;
    opacity: 0.4;
}

@media (max-width: 900px) {
    .steps-grid {
        flex-direction: column;
    }

    .step-connector {
        transform: rotate(90deg);
        width: 40px;
    }
}

/* ═══════════════════════════════════════════════════════════════
   TECH STACK
   ═══════════════════════════════════════════════════════════════ */
.tech-section {
    background: var(--bg-secondary);
}

.tech-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s var(--ease-out);
}

.tech-item:hover {
    border-color: var(--border-accent);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.tech-icon {
    font-size: 20px;
}

/* ═══════════════════════════════════════════════════════════════
   PRICING SECTION
   ═══════════════════════════════════════════════════════════════ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}

.pricing-card {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    position: relative;
    transition: all 0.4s var(--ease-out);
}

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

.pricing-card.featured {
    border-color: var(--accent);
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.06), var(--bg-card));
    box-shadow: 0 0 60px var(--accent-glow);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--gradient-primary);
    color: white;
    font-size: 12px;
    font-weight: 700;
    border-radius: 999px;
    letter-spacing: 0.5px;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
}

.pricing-header h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.pricing-amount {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.price-currency {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-secondary);
}

.price {
    font-size: 48px;
    font-weight: 900;
    line-height: 1;
}

.price-period {
    font-size: 14px;
    color: var(--text-tertiary);
}

.pricing-desc {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-top: 8px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
}

.check {
    color: var(--success);
    font-weight: 700;
    font-size: 16px;
}

@media (max-width: 900px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }

    .pricing-card.featured {
        transform: none;
    }

    .pricing-card.featured:hover {
        transform: translateY(-4px);
    }
}

/* ═══════════════════════════════════════════════════════════════
   CTA / CONTACT SECTION
   ═══════════════════════════════════════════════════════════════ */
.cta-section {
    background: var(--bg-secondary);
}

.cta-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 64px;
    align-items: start;
}

.cta-content .section-title {
    text-align: left;
    margin-bottom: 16px;
}

.cta-content .section-desc {
    text-align: left;
    margin-bottom: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 15px;
    transition: all 0.3s;
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-tertiary);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.cta-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 60px;
}

.info-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.3s;
}

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

.info-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: var(--radius-sm);
    color: var(--accent-light);
    flex-shrink: 0;
}

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

.info-card h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
}

.info-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

@media (max-width: 900px) {
    .cta-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .cta-info {
        margin-top: 0;
    }
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 64px;
}

.footer-tagline {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-top: 16px;
    line-height: 1.6;
    max-width: 280px;
}

.footer-links h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links a {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    padding: 6px 0;
    transition: color 0.2s;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-tertiary);
}

.footer-socials {
    display: flex;
    gap: 16px;
}

.footer-socials a {
    color: var(--text-tertiary);
    transition: color 0.2s;
}

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

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

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

/* ═══════════════════════════════════════════════════════════════
   SCROLL ANIMATIONS
   ═══════════════════════════════════════════════════════════════ */
.section-header,
.product-card,
.step-card,
.pricing-card,
.tech-item,
.capability-card,
.changelog-entry,
.info-card {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s var(--ease-out);
}

.section-header.visible,
.product-card.visible,
.step-card.visible,
.pricing-card.visible,
.tech-item.visible,
.capability-card.visible,
.changelog-entry.visible,
.info-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays */
.product-card:nth-child(2) { transition-delay: 0.1s; }
.product-card:nth-child(3) { transition-delay: 0.2s; }
.product-card:nth-child(4) { transition-delay: 0.3s; }

.pricing-card:nth-child(2) { transition-delay: 0.1s; }
.pricing-card:nth-child(3) { transition-delay: 0.2s; }

.tech-item:nth-child(2) { transition-delay: 0.05s; }
.tech-item:nth-child(3) { transition-delay: 0.1s; }
.tech-item:nth-child(4) { transition-delay: 0.15s; }
.tech-item:nth-child(5) { transition-delay: 0.2s; }
.tech-item:nth-child(6) { transition-delay: 0.25s; }
.tech-item:nth-child(7) { transition-delay: 0.3s; }
.tech-item:nth-child(8) { transition-delay: 0.35s; }

.capability-card:nth-child(2) { transition-delay: 0.1s; }
.capability-card:nth-child(3) { transition-delay: 0.2s; }
.capability-card:nth-child(4) { transition-delay: 0.1s; }
.capability-card:nth-child(5) { transition-delay: 0.2s; }
.capability-card:nth-child(6) { transition-delay: 0.3s; }

.changelog-entry:nth-child(2) { transition-delay: 0.1s; }
.changelog-entry:nth-child(3) { transition-delay: 0.15s; }
.changelog-entry:nth-child(4) { transition-delay: 0.2s; }
.changelog-entry:nth-child(5) { transition-delay: 0.25s; }

/* ═══════════════════════════════════════════════════════════════
   SCROLLBAR
   ═══════════════════════════════════════════════════════════════ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* ═══════════════════════════════════════════════════════════════
   PAGE HERO (Sub-pages)
   ═══════════════════════════════════════════════════════════════ */
.page-hero {
    position: relative;
    padding: 160px 24px 80px;
    text-align: center;
    overflow: hidden;
}

.page-hero.compact {
    padding: 140px 24px 60px;
}

.page-hero-content {
    position: relative;
    z-index: 1;
    max-width: 640px;
    margin: 0 auto;
}

.page-hero h1 {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
}

.page-hero .hero-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0 auto;
    max-width: 520px;
}

/* ═══════════════════════════════════════════════════════════════
   CONTACT PAGE
   ═══════════════════════════════════════════════════════════════ */
.contact-section {
    padding: 0 24px 100px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 64px;
    align-items: start;
}

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

.form-fallback {
    display: flex;
    flex-direction: column;
    gap: 12px;
    text-align: center;
}

.form-fallback p {
    font-size: 13px;
    color: var(--text-tertiary);
}

.contact-form label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-form select {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s;
    outline: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%238b8fa4' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    cursor: pointer;
}

.contact-form select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.contact-form select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding-top: 8px;
}

.contact-info .info-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.3s var(--ease-out);
}

.contact-info .info-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.contact-info .info-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: var(--radius-sm);
    color: var(--accent-light);
    flex-shrink: 0;
}

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

.contact-info .info-card h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
}

.contact-info .info-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.contact-info .info-card a {
    color: var(--accent-light);
    transition: color 0.2s;
}

.contact-info .info-card a:hover {
    color: var(--accent);
}

@media (max-width: 900px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

/* ═══════════════════════════════════════════════════════════════
   LEGAL PAGES (Privacy, Terms)
   ═══════════════════════════════════════════════════════════════ */
.legal-content {
    padding: 0 24px 100px;
}

.legal-body {
    max-width: 760px;
    margin: 0 auto;
}

.legal-body h2 {
    font-size: 22px;
    font-weight: 700;
    margin-top: 48px;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}

.legal-body h2:first-child {
    margin-top: 0;
}

.legal-body h3 {
    font-size: 17px;
    font-weight: 600;
    margin-top: 28px;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.legal-body p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 14px;
}

.legal-body ul {
    list-style: none;
    margin: 0 0 20px 0;
    padding: 0;
}

.legal-body ul li {
    position: relative;
    padding-left: 20px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.legal-body ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 11px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.6;
}

.legal-body a {
    color: var(--accent-light);
    text-decoration: underline;
    text-decoration-color: rgba(96, 165, 250, 0.3);
    text-underline-offset: 3px;
    transition: text-decoration-color 0.2s;
}

.legal-body a:hover {
    text-decoration-color: var(--accent-light);
}

.legal-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ═══════════════════════════════════════════════════════════════
   CHANGELOG PAGE
   ═══════════════════════════════════════════════════════════════ */
.changelog-section {
    padding: 0 24px 100px;
}

.changelog-timeline {
    max-width: 760px;
    margin: 0 auto;
    position: relative;
}

.changelog-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.changelog-entry {
    position: relative;
    padding-left: 40px;
    margin-bottom: 56px;
}

.changelog-entry:last-child {
    margin-bottom: 0;
}

.changelog-entry::before {
    content: '';
    position: absolute;
    left: -5px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 2px solid var(--text-tertiary);
    z-index: 1;
}

.changelog-entry.latest::before {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow-strong);
}

.changelog-date {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.changelog-version {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-light);
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
}

.changelog-date time {
    font-size: 14px;
    color: var(--text-tertiary);
}

.changelog-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.changelog-body ul {
    list-style: none;
    margin: 0 0 24px 0;
    padding: 0;
}

.changelog-body ul li {
    position: relative;
    padding-left: 18px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.changelog-body ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--text-tertiary);
}

.changelog-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 3px 10px;
    border-radius: 4px;
    margin-bottom: 6px;
    margin-top: 4px;
}

.changelog-tag.new {
    background: rgba(34, 197, 94, 0.12);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.changelog-tag.improved {
    background: rgba(59, 130, 246, 0.12);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.25);
}

.changelog-tag.fixed {
    background: rgba(245, 158, 11, 0.12);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.25);
}

/* ═══════════════════════════════════════════════════════════════
   FEATURE SHOWCASE (index.html polished)
   ═══════════════════════════════════════════════════════════════ */
.features {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.feature-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    margin-bottom: 100px;
}

.feature-showcase:last-child {
    margin-bottom: 0;
}

.feature-showcase.reverse {
    direction: rtl;
}

.feature-showcase.reverse > * {
    direction: ltr;
}

.feature-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-light);
    margin-bottom: 10px;
}

.feature-text h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.feature-text p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    position: relative;
    padding-left: 22px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 8px;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gradient-primary);
}

/* Feature Showcase Cards */
.showcase-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s var(--ease-out);
}

.showcase-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 16px 56px rgba(0, 0, 0, 0.25);
    transform: translateY(-4px);
}

.sc-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.sc-header svg {
    color: var(--accent-light);
    flex-shrink: 0;
}

.sc-status {
    margin-left: auto;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 3px 10px;
    border-radius: 4px;
}

.sc-status.active {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
}

.sc-status.live {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    animation: pulse-live 2s ease-in-out infinite;
}

@keyframes pulse-live {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.sc-badge {
    margin-left: auto;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 3px 10px;
    border-radius: 4px;
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
}

.sc-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Exam mode card items */
.block-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
}

.block-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.block-item.blocked .block-dot {
    background: var(--danger);
    box-shadow: 0 0 6px rgba(239, 68, 68, 0.4);
}

.block-item.allowed .block-dot {
    background: var(--success);
    box-shadow: 0 0 6px rgba(34, 197, 94, 0.4);
}

.block-label {
    margin-left: auto;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
}

/* Screen grid card */
.screen-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 16px;
}

.screen-thumb {
    aspect-ratio: 16/10;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 6px;
    position: relative;
    overflow: hidden;
}

.screen-thumb::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(6, 182, 212, 0.03));
}

.screen-thumb.highlight {
    border-color: var(--warning);
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.2);
}

.screen-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    position: relative;
    z-index: 1;
}

/* Broadcast card */
.broadcast-preview {
    padding: 20px;
}

.broadcast-screen {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 24px 20px;
    margin-bottom: 16px;
}

.broadcast-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.bc-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 4px;
    width: 100%;
}

.bc-bar.short {
    width: 60%;
}

.bc-block {
    height: 48px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid var(--border-accent);
    border-radius: 6px;
}

.broadcast-meta {
    display: flex;
    align-items: center;
}

.viewer-count {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
}

.viewer-avatars {
    display: flex;
}

.avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 2px solid var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: var(--accent-light);
    margin-left: -8px;
}

.avatar:first-child {
    margin-left: 0;
}

.avatar.more {
    background: var(--accent-glow);
    color: var(--accent-light);
    font-size: 10px;
}

/* Application profiles card */
.app-profiles {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.app-profile {
    padding: 14px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all 0.3s;
}

.app-profile.active {
    border-color: var(--border-accent);
    background: var(--accent-glow);
}

.profile-name {
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.profile-apps {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.app-chip {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 4px;
    letter-spacing: 0.3px;
}

.app-chip.allowed {
    background: rgba(34, 197, 94, 0.12);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.app-chip.blocked {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ─── Capabilities Section ─── */
.capabilities {
    padding: 120px 0;
}

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

.capability-card {
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s var(--ease-out);
}

.capability-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.cap-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    color: var(--accent-light);
}

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

.capability-card h4 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.capability-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

@media (max-width: 600px) {
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
}

/* ─── How It Works override ─── */
.how-it-works {
    padding: 120px 0;
    background: var(--bg-secondary);
}

/* ─── Pricing section spacing ─── */
.pricing {
    padding: 120px 0;
}

.price {
    font-size: 48px;
    font-weight: 900;
    line-height: 1;
    color: var(--text-primary);
}

.price span {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-tertiary);
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 32px 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pricing-features li {
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: 22px;
    position: relative;
}

.pricing-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
    font-size: 14px;
}

/* ─── CTA Section ─── */
.cta {
    padding: 100px 0;
}

.cta-box {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 64px 48px;
    text-align: center;
}

.cta-box h2 {
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-box p {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

/* ─── Button secondary ─── */
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: transparent;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-hover);
    transition: all 0.3s var(--ease-out);
}

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

/* ─── Section Badge ─── */
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-light);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ─── Scroll reveal for showcase cards ─── */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.7s var(--ease-out);
}

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

/* ─── Hero content layout (index) ─── */
.hero .container {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(40px, 6vw, 68px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.stat-suffix {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-light);
}

/* ─── Device card mini (hero preview) ─── */
.preview-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
}

.device-card-mini {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font-mono);
    color: var(--text-primary);
    transition: border-color 0.3s;
}

.device-card-mini:hover {
    border-color: var(--border-hover);
}

.device-card-mini .device-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.device-card-mini.online .device-status {
    background: var(--success);
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.4);
}

.device-card-mini.offline .device-status {
    background: var(--text-tertiary);
}

.device-tag {
    margin-left: auto;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 3px 8px;
    border-radius: 4px;
    background: rgba(34, 197, 94, 0.12);
    color: #22c55e;
    font-family: var(--font-sans);
}

.device-tag.exam {
    background: rgba(245, 158, 11, 0.12);
    color: #f59e0b;
}

.device-tag.offline {
    background: rgba(90, 94, 115, 0.15);
    color: var(--text-tertiary);
}

.device-tag.broadcast {
    background: rgba(59, 130, 246, 0.12);
    color: var(--accent-light);
}

/* ─── Preview dots ─── */
.preview-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.preview-dots span:nth-child(1) { background: #ef4444; }
.preview-dots span:nth-child(2) { background: #f59e0b; }
.preview-dots span:nth-child(3) { background: #22c55e; }

/* ─── Active nav link ─── */
.nav-link.active {
    color: var(--accent-light);
}

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

/* ─── Footer bottom links ─── */
.footer-bottom-links {
    display: flex;
    gap: 20px;
}

.footer-bottom-links a {
    font-size: 13px;
    color: var(--text-tertiary);
    transition: color 0.2s;
}

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

/* ─── Feature showcase responsive ─── */
@media (max-width: 900px) {
    .feature-showcase {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .feature-showcase.reverse {
        direction: ltr;
    }

    .hero-visual {
        max-width: 100%;
    }
}

/* ─── Section header (used across pages) ─── */
.section-header h2 {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ─── Global responsive adjustments ─── */
@media (max-width: 900px) {
    .hero {
        min-height: auto;
        padding: 120px 20px 60px;
    }

    .hero-visual {
        margin: 40px auto 0;
    }

    .hero-actions {
        gap: 12px;
    }

    .hero-stats {
        flex-wrap: wrap;
    }

    .section,
    .features,
    .capabilities,
    .how-it-works,
    .pricing {
        padding: 90px 0;
    }

    .cta {
        padding: 80px 0;
    }

    .cta-box {
        padding: 48px 32px;
    }

    .page-hero {
        padding: 140px 20px 70px;
    }

    .page-hero.compact {
        padding: 120px 20px 60px;
    }

    .contact-section,
    .legal-content,
    .changelog-section {
        padding: 0 20px 80px;
    }
}

@media (max-width: 600px) {
    .hero-badge {
        font-size: 11px;
        letter-spacing: 0.6px;
        padding: 6px 12px;
        margin-bottom: 24px;
    }

    .hero h1 {
        font-size: clamp(32px, 10vw, 44px);
        line-height: 1.12;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions .btn-primary,
    .hero-actions .btn-secondary,
    .btn-lg {
        width: 100%;
        justify-content: center;
    }

    .hero-subtitle {
        font-size: 16px;
        margin-bottom: 28px;
    }

    .hero h1 {
        letter-spacing: -1px;
    }

    .hero-stats {
        gap: 16px;
    }

    .stat-number {
        font-size: 30px;
    }

    .stat-label {
        letter-spacing: 0.6px;
    }

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

    .sc-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .block-item {
        font-size: 12px;
    }

    .broadcast-preview {
        padding: 16px;
    }

    .viewer-count {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .feature-showcase {
        margin-bottom: 72px;
    }

    .cta-box {
        padding: 40px 24px;
    }

    .footer-bottom-links {
        flex-direction: column;
        gap: 8px;
    }

    .changelog-timeline::before {
        left: 4px;
    }

    .changelog-entry {
        padding-left: 28px;
    }

    .changelog-entry::before {
        left: -2px;
    }

    .changelog-date {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
}

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

    .hero-stats {
        margin-top: 40px;
    }

    .stat-number {
        font-size: 28px;
    }

    .capability-card {
        padding: 28px 22px;
    }

    .feature-text h3 {
        font-size: 24px;
    }

    .section-header p {
        font-size: 16px;
    }

    .cta-box p {
        font-size: 15px;
    }
}