/* ==========================================================================
   KERAH AI Landing Page - Main Stylesheet
   Modern Dark Theme with Glassmorphism
   ========================================================================== */

/* ==========================================================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ========================================================================== */

:root {
    /* Primary Colors - Deep Tech Blue (matching logo) */
    --primary-900: #0a0f1a;
    --primary-800: #111827;
    --primary-700: #1f2937;
    --primary-600: #374151;
    --primary-500: #4b5563;

    /* Accent Colors - From Logo */
    --accent-blue: #3b82f6;
    --accent-blue-light: #60a5fa;
    --accent-blue-dark: #2563eb;
    --accent-blue-glow: rgba(59, 130, 246, 0.4);

    --accent-orange: #f97316;
    --accent-orange-light: #fb923c;
    --accent-orange-dark: #ea580c;
    --accent-orange-glow: rgba(249, 115, 22, 0.4);

    /* Gradient Colors */
    --gradient-start: #667eea;
    --gradient-mid: #764ba2;
    --gradient-end: #f97316;

    /* Semantic Colors */
    --success: #10b981;
    --success-light: #34d399;
    --warning: #f59e0b;
    --error: #ef4444;
    --error-light: #f87171;

    /* Text Colors */
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --text-dark: #1f2937;

    /* Glass Effects */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-bg-hover: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-hover: rgba(255, 255, 255, 0.2);
    --glass-blur: 12px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6);
    --shadow-glow-blue: 0 0 30px var(--accent-blue-glow);
    --shadow-glow-orange: 0 0 30px var(--accent-orange-glow);

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

    /* Fluid Font Sizes */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
    --text-5xl: clamp(3rem, 2rem + 5vw, 4.5rem);

    /* Line Heights */
    --leading-tight: 1.2;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

/* ==========================================================================
   2. CSS RESET
   ========================================================================== */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background-color: var(--primary-900);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

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

ul,
ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
}

/* ==========================================================================
   3. LAYOUT UTILITIES
   ========================================================================== */

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

@media (max-width: 640px) {
    .container {
        padding: 0 var(--space-4);
    }
}

.section {
    padding: var(--space-20) 0;
}

@media (max-width: 768px) {
    .section {
        padding: var(--space-16) 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-badge {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--accent-blue);
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-4);
}

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

/* ==========================================================================
   4. BUTTONS
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    font-weight: var(--font-semibold);
    font-size: var(--text-base);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-orange-light));
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-light));
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--glass-bg);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

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

/* ==========================================================================
   5. NAVIGATION
   ========================================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-4) 0;
    background: transparent;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 15, 26, 0.9);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border);
    padding: var(--space-3) 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.navbar-logo {
    height: 48px;
    width: auto;
}

.navbar-name {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.navbar-links {
    display: flex;
    gap: var(--space-6);
}

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

.navbar-link {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.lang-selector {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--space-2);
    background: var(--primary-800);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-2);
    min-width: 120px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-lg);
}

.lang-selector.open .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-option:hover,
.lang-option.active {
    background: var(--glass-bg);
    color: var(--text-primary);
}

.mobile-menu-btn {
    display: none;
    padding: var(--space-2);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .navbar-actions .btn {
        display: none;
    }
}

/* ==========================================================================
   6. HERO SECTION
   ========================================================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--space-24);
    background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-800) 50%, var(--primary-700) 100%);
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-gradient-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 80%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(249, 115, 22, 0.1) 0%, transparent 50%);
    z-index: 2;
}

.hero .container {
    position: relative;
    z-index: 3;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.hero-content {
    max-width: 600px;
}

@media (max-width: 992px) {
    .hero-content {
        max-width: none;
        margin: 0 auto;
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--accent-blue);
    margin-bottom: var(--space-6);
}

.hero-badge-icon {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.hero-title {
    font-size: var(--text-5xl);
    margin-bottom: var(--space-6);
    line-height: 1.1;
}

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

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    line-height: var(--leading-relaxed);
}

.hero-stats {
    display: flex;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

@media (max-width: 992px) {
    .hero-stats {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        gap: var(--space-4);
    }
}

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

.hero-stat-number {
    display: block;
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--accent-blue);
}

.hero-stat-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.hero-ctas {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

@media (max-width: 992px) {
    .hero-ctas {
        justify-content: center;
    }
}

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

.hero-trust {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

@media (max-width: 992px) {
    .hero-trust {
        justify-content: center;
    }
}

.hero-trust-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.hero-trust-badges {
    display: flex;
    gap: var(--space-2);
}

.trust-badge {
    padding: var(--space-1) var(--space-3);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 992px) {
    .hero-visual {
        display: none;
    }
}

.hero-visual-container {
    position: relative;
    width: 400px;
    height: 400px;
}

.hero-visual-glow {
    position: absolute;
    inset: -20%;
    background: radial-gradient(circle, var(--accent-blue-glow) 0%, transparent 70%);
    filter: blur(40px);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

.hero-visual-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-visual-icon svg {
    width: 200px;
    height: 200px;
    color: var(--accent-blue);
}

/* ==========================================================================
   7. CAPABILITIES SECTION
   ========================================================================== */

.capabilities {
    background: var(--primary-800);
}

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

@media (max-width: 1200px) {
    .capabilities-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

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

.capability-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.capability-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.capability-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-light));
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

.capability-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.capability-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.capability-description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    line-height: var(--leading-relaxed);
}

.capability-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.capability-feature {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.capability-feature::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--accent-blue);
    border-radius: 50%;
}

/* ==========================================================================
   8. EXPERTISE SECTION
   ========================================================================== */

.expertise {
    background: var(--primary-900);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

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

.expertise-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
}

.expertise-card:hover {
    border-color: var(--accent-blue);
}

.expertise-card.refrigeration .expertise-icon {
    background: linear-gradient(135deg, #06b6d4, #22d3ee);
}

.expertise-card.kitchen .expertise-icon {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-orange-light));
}

.expertise-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
}

.expertise-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.expertise-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
}

.expertise-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

.expertise-items {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}

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

.expertise-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.expertise-item svg {
    width: 16px;
    height: 16px;
    color: var(--success);
    flex-shrink: 0;
}

/* ==========================================================================
   9. HOW IT WORKS SECTION
   ========================================================================== */

.how-it-works {
    background: var(--primary-800);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    position: relative;
}

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

.steps-line {
    position: absolute;
    top: 40px;
    left: calc(16.67% + 28px);
    right: calc(16.67% + 28px);
    height: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-orange));
}

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

.step-card {
    text-align: center;
    position: relative;
}

.step-number {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
    border-radius: 50%;
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    margin: 0 auto var(--space-6);
    position: relative;
    z-index: 1;
}

.step-title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-3);
}

.step-description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

/* ==========================================================================
   10. AGENTS SECTION
   ========================================================================== */

.agents {
    background: var(--primary-900);
}

.agents-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

.agent-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    text-align: center;
    transition: all var(--transition-base);
}

.agent-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.agent-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    margin: 0 auto var(--space-3);
}

.agent-icon svg {
    width: 24px;
    height: 24px;
    color: var(--accent-blue);
}

.agent-name {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
}

.agent-role {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* ==========================================================================
   11. ROADMAP SECTION
   ========================================================================== */

.roadmap {
    background: var(--primary-800);
}

.roadmap-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    max-width: 800px;
    margin: 0 auto;
}

.roadmap-item {
    display: flex;
    gap: var(--space-6);
    align-items: flex-start;
}

@media (max-width: 480px) {
    .roadmap-item {
        flex-direction: column;
        gap: var(--space-3);
    }
}

.roadmap-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

.roadmap-dot {
    width: 16px;
    height: 16px;
    background: var(--accent-blue);
    border-radius: 50%;
    flex-shrink: 0;
}

.roadmap-item.completed .roadmap-dot {
    background: var(--success);
}

.roadmap-item.upcoming .roadmap-dot {
    background: var(--glass-border);
    border: 2px solid var(--accent-orange);
}

.roadmap-line {
    width: 2px;
    height: 40px;
    background: var(--glass-border);
}

.roadmap-content {
    flex: 1;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.roadmap-status {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-2);
}

.roadmap-item.completed .roadmap-status {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.roadmap-item.current .roadmap-status {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
}

.roadmap-item.upcoming .roadmap-status {
    background: rgba(249, 115, 22, 0.2);
    color: var(--accent-orange);
}

.roadmap-title {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
}

.roadmap-description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* ==========================================================================
   12. TESTIMONIALS SECTION
   ========================================================================== */

.testimonials {
    background: var(--primary-900);
}

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

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

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

.testimonial-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
}

.testimonial-quote {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-bold);
    font-size: var(--text-lg);
}

.testimonial-info {
    flex: 1;
}

.testimonial-name {
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
}

.testimonial-role {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* ==========================================================================
   13. PRICING SECTION
   ========================================================================== */

.pricing {
    background: var(--primary-800);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    max-width: 1000px;
    margin: 0 auto;
}

@media (max-width: 900px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
}

.pricing-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    text-align: center;
    position: relative;
    opacity: 0.6;
}

.pricing-card.featured {
    border-color: var(--accent-blue);
    opacity: 0.7;
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-1) var(--space-4);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
}

.pricing-name {
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
}

.pricing-price {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
}

.pricing-period {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-6);
}

.pricing-features {
    text-align: left;
    margin-bottom: var(--space-6);
}

.pricing-feature {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.pricing-feature svg {
    width: 16px;
    height: 16px;
    color: var(--success);
    flex-shrink: 0;
}

.pricing-coming-soon {
    padding: var(--space-3) var(--space-6);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* ==========================================================================
   14. WAITING LIST FORM
   ========================================================================== */

.waitlist {
    background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-800) 100%);
    position: relative;
}

.waitlist::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 50%, rgba(249, 115, 22, 0.1) 0%, transparent 50%);
}

.waitlist .container {
    position: relative;
}

.waitlist-wrapper {
    max-width: 600px;
    margin: 0 auto;
}

.waitlist-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
}

@media (max-width: 480px) {
    .waitlist-card {
        padding: var(--space-6);
    }
}

.waitlist-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.waitlist-title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-3);
}

.waitlist-subtitle {
    color: var(--text-secondary);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

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

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    padding-right: var(--space-10);
}

.form-select option {
    background: var(--primary-800);
    color: var(--text-primary);
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

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

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--accent-blue);
    cursor: pointer;
    flex-shrink: 0;
}

.form-checkbox-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

.form-checkbox-label a {
    color: var(--accent-blue);
    text-decoration: underline;
}

.form-submit {
    width: 100%;
    margin-top: var(--space-6);
}

.form-message {
    margin-top: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid var(--success);
    color: var(--success-light);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid var(--error);
    color: var(--error-light);
}

.success-state {
    text-align: center;
    padding: var(--space-8) 0;
}

.success-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(16, 185, 129, 0.2);
    border-radius: 50%;
    margin: 0 auto var(--space-6);
}

.success-icon svg {
    width: 40px;
    height: 40px;
    color: var(--success);
}

.success-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-3);
}

.success-message {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.success-note {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* ==========================================================================
   15. FAQ SECTION
   ========================================================================== */

.faq {
    background: var(--primary-900);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--glass-border);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-5) 0;
    text-align: left;
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.faq-question:hover {
    color: var(--accent-blue);
}

.faq-icon {
    width: 24px;
    height: 24px;
    color: var(--text-muted);
    transition: transform var(--transition-base);
    flex-shrink: 0;
}

.faq-item.open .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.open .faq-answer {
    max-height: 500px;
}

.faq-answer-content {
    padding-bottom: var(--space-5);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

/* ==========================================================================
   16. FOOTER
   ========================================================================== */

.footer {
    background: var(--primary-900);
    border-top: 1px solid var(--glass-border);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

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

@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.footer-logo img {
    height: 40px;
}

.footer-logo-text {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-tagline {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

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

.footer-social-link:hover {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

.footer-social-link svg {
    width: 20px;
    height: 20px;
}

.footer-column-title {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-4);
}

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

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

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-8);
    border-top: 1px solid var(--glass-border);
    flex-wrap: wrap;
    gap: var(--space-4);
}

@media (max-width: 600px) {
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

.footer-copyright {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

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

.footer-legal-link {
    font-size: var(--text-sm);
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

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

/* ==========================================================================
   17. UTILITY CLASSES
   ========================================================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none !important; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* Loading Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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