/* ================================================
   UniversitasAI - Custom Design System
   A modern, professional website for AI-powered education
   ================================================ */

/* ----------------------------------------
   CSS Custom Properties (Design Tokens)
   ---------------------------------------- */
:root {
    /* Primary Colors - Deep Teal/Navy from logo */
    --color-primary-900: #0a1628;
    --color-primary-800: #0f2137;
    --color-primary-700: #142c46;
    --color-primary-600: #1a3a5c;
    --color-primary-500: #1e4d6b;
    --color-primary-400: #2a6b8a;
    --color-primary-300: #3d8aa8;
    --color-primary-200: #5ba8c4;
    --color-primary-100: #8cc5da;

    /* Accent Colors - Teal/Green from logo */
    --color-accent-500: #0d9488;
    --color-accent-400: #14b8a6;
    --color-accent-300: #2dd4bf;
    --color-accent-200: #5eead4;

    /* CTA Colors - Orange from logo */
    --color-cta-600: #c2410c;
    --color-cta-500: #ea580c;
    --color-cta-400: #f97316;
    --color-cta-300: #fb923c;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    /* Semantic Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    --font-size-7xl: 4.5rem;

    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* Line Heights */
    --leading-tight: 1.1;
    --leading-snug: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    /* 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;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 40px rgba(20, 184, 166, 0.15);
    --shadow-glow-strong: 0 0 60px rgba(20, 184, 166, 0.25);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-slower: 500ms ease;

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

    /* Theme-specific colors (light mode default) */
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-tertiary: #e2e8f0;
    --bg-card: rgba(0, 0, 0, 0.02);
    --bg-card-hover: rgba(0, 0, 0, 0.04);
    --border-subtle: rgba(0, 0, 0, 0.05);
    --border-light: rgba(0, 0, 0, 0.08);
    --border-medium: rgba(0, 0, 0, 0.12);
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-faded: #94a3b8;
    --navbar-bg: rgba(255, 255, 255, 0.95);
    --orb-1: #14b8a6;
    --orb-2: #3b82f6;
    --orb-3: #f97316;
    --orb-opacity: 0.25;
    --preview-bg: #ffffff;
    --preview-header: #f8fafc;
    --icon-stroke: #1e293b;

    /* Light mode gray overrides - dark text for readability */
    --color-gray-100: #1e293b;
    --color-gray-200: #334155;
    --color-gray-300: #475569;
    --color-gray-400: #64748b;
    --color-gray-500: #94a3b8;
    --color-accent-300: #0d9488;
}

/* Dark Mode Theme */
[data-theme="dark"] {
    --bg-primary: #0a1628;
    --bg-secondary: #0f2137;
    --bg-tertiary: #142c46;
    --bg-card: rgba(255, 255, 255, 0.02);
    --bg-card-hover: rgba(255, 255, 255, 0.04);
    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-medium: rgba(255, 255, 255, 0.15);
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-faded: #64748b;
    --navbar-bg: rgba(10, 22, 40, 0.95);
    --orb-1: var(--color-accent-500);
    --orb-2: var(--color-primary-400);
    --orb-3: var(--color-cta-500);
    --orb-opacity: 0.5;
    --preview-bg: rgba(15, 33, 55, 0.8);
    --preview-header: rgba(0, 0, 0, 0.2);
    --icon-stroke: #ffffff;

    --color-accent-300: #2dd4bf;
    --color-gray-100: #f1f5f9;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

ul, ol {
    list-style: none;
}

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

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-8);
    }
}

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

@media (min-width: 768px) {
    .section {
        padding: var(--space-32) 0;
    }
}

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

.navbar.scrolled {
    background: var(--navbar-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--space-3) 0;
}

[data-theme="dark"] .navbar.scrolled {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-img {
    height: 80px;
    width: auto;
}

.nav-menu {
    display: none;
    gap: var(--space-1);
}

@media (min-width: 1024px) {
    .nav-menu {
        display: flex;
        align-items: center;
    }
}

.nav-link {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.05);
}

.nav-cta {
    background: linear-gradient(135deg, var(--color-cta-500), var(--color-cta-400));
    color: var(--color-white) !important;
    margin-left: var(--space-4);
}

.nav-cta:hover {
    background: linear-gradient(135deg, var(--color-cta-400), var(--color-cta-300));
    transform: translateY(-1px);
}

/* Theme Toggle Button */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-primary);
}

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

.theme-icon {
    width: 20px;
    height: 20px;
    transition: all var(--transition-base);
}

.theme-icon.sun {
    display: none;
}

.theme-icon.moon {
    display: block;
}

[data-theme="dark"] .theme-icon.sun {
    display: block;
}

[data-theme="dark"] .theme-icon.moon {
    display: none;
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    z-index: var(--z-modal);
}

@media (min-width: 1024px) {
    .nav-toggle {
        display: none;
    }
}

.hamburger {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    position: relative;
    transition: all var(--transition-base);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

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

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

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

/* Mobile Menu */
.nav-menu.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-primary-900);
    padding: 100px var(--space-8) var(--space-8);
    gap: var(--space-2);
    animation: fadeIn var(--transition-base);
}

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

.nav-menu.active .nav-link {
    font-size: var(--font-size-xl);
    padding: var(--space-4);
}

.nav-menu.active .nav-cta {
    margin-left: 0;
    margin-top: var(--space-4);
    text-align: center;
}

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding: var(--space-32) 0 var(--space-16);
    overflow: hidden;
}

.hero-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    position: relative;
    z-index: 1;
}

@media (min-width: 768px) {
    .hero-wrapper {
        padding: 0 var(--space-8);
    }
}

@media (min-width: 1200px) {
    .hero-wrapper {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-16);
    }
}

.hero-bg-effects {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: var(--orb-opacity);
    animation: float 20s ease-in-out infinite;
    transition: opacity var(--transition-slow);
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--orb-1) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--orb-2) 0%, transparent 70%);
    bottom: -100px;
    left: -150px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--orb-3) 0%, transparent 70%);
    top: 40%;
    left: 50%;
    opacity: calc(var(--orb-opacity) * 0.6);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(20px, 10px) scale(1.02); }
}

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border-subtle) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 50% at 50% 50%, black 40%, transparent 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    animation: slideUp 0.6s ease-out;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

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

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: var(--font-extrabold);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-6);
    animation: slideUp 0.6s ease-out 0.1s both;
}

.title-line {
    display: block;
}

.title-gradient {
    background: linear-gradient(135deg, var(--color-accent-300), var(--color-accent-400), var(--color-primary-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: var(--space-10);
    line-height: var(--leading-relaxed);
    animation: slideUp 0.6s ease-out 0.2s both;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
    animation: slideUp 0.6s ease-out 0.3s both;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-cta-500), var(--color-cta-400));
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(249, 115, 22, 0.4);
}

.btn-secondary {
    background: #ffffff;
    color: var(--text-primary);
    border: 1px solid rgba(0, 0, 0, 0.15);
}

.btn-secondary:hover {
    background: #f8fafc;
    border-color: rgba(0, 0, 0, 0.25);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(0, 0, 0, 0.2);
}

.btn-outline:hover {
    background: rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.3);
}

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

.btn-ghost:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.03);
}

.btn-lg {
    padding: var(--space-5) var(--space-8);
    font-size: var(--font-size-lg);
}

.btn-icon {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6);
    animation: slideUp 0.6s ease-out 0.4s both;
}

@media (min-width: 768px) {
    .hero-stats {
        gap: var(--space-8);
    }
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-bold);
    color: var(--color-accent-300);
}

@media (min-width: 768px) {
    .stat-number {
        font-size: var(--font-size-4xl);
    }
}

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

.stat-divider {
    width: 1px;
    background: rgba(0, 0, 0, 0.1);
    display: none;
}

[data-theme="dark"] .stat-divider {
    background: rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
    .stat-divider {
        display: block;
    }
}

/* Hero Visual - Platform Preview */
.hero-visual {
    display: none;
}

@media (min-width: 1200px) {
    .hero-visual {
        display: block;
    }
}

.platform-preview {
    background: var(--preview-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-glow);
    animation: slideUp 0.8s ease-out 0.5s both;
    transition: background var(--transition-base), border-color var(--transition-base);
}

[data-theme="dark"] .platform-preview {
    box-shadow: var(--shadow-glow);
}

.preview-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6);
    background: var(--preview-header);
    border-bottom: 1px solid var(--border-subtle);
}

.preview-dots {
    display: flex;
    gap: var(--space-2);
}

.preview-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .preview-dots span {
    background: rgba(255, 255, 255, 0.1);
}

.preview-dots span:first-child { background: #ff5f57; }
.preview-dots span:nth-child(2) { background: #febc2e; }
.preview-dots span:last-child { background: #28c840; }

.preview-title {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.preview-content {
    padding: var(--space-8);
}

.mini-agent-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.mini-agent {
    aspect-ratio: 1;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all var(--transition-base);
}

.mini-agent:hover {
    background: rgba(0, 0, 0, 0.04);
    border-color: rgba(0, 0, 0, 0.15);
    transform: scale(1.05);
}

[data-theme="dark"] .mini-agent {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .mini-agent:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
}

.mini-agent.active {
    border-color: var(--color-accent-400);
    background: rgba(20, 184, 166, 0.1);
}

.mini-agent-icon {
    font-size: var(--font-size-xl);
}

.mini-agent-pulse {
    position: absolute;
    inset: -2px;
    border: 2px solid var(--color-accent-400);
    border-radius: var(--radius-lg);
    animation: pulseBorder 2s ease-in-out infinite;
}

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

.preview-central {
    display: flex;
    justify-content: center;
}

.central-brain {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.2), rgba(45, 212, 191, 0.1));
    border: 1px solid var(--color-accent-400);
    border-radius: var(--radius-xl);
}

.brain-icon {
    font-size: var(--font-size-2xl);
}

.central-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: var(--color-accent-300);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    animation: bounce 2s infinite;
}

.scroll-arrow svg {
    width: 24px;
    height: 24px;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ----------------------------------------
   Section Headers
   ---------------------------------------- */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-16);
}

.section-tag {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: rgba(20, 184, 166, 0.1);
    border: 1px solid rgba(20, 184, 166, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-medium);
    color: var(--color-accent-300);
    margin-bottom: var(--space-6);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-6);
}

.section-desc {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

/* ----------------------------------------
   Platform Section
   ---------------------------------------- */
.platform {
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.platform-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-16);
}

@media (min-width: 640px) {
    .platform-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .platform-features {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-card {
    padding: var(--space-8);
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent-500), var(--color-accent-400));
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-white);
}

.feature-card h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-3);
}

.feature-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

/* Integrations */
.integrations {
    text-align: center;
}

.integrations-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-6);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.integrations-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
}

.integration-item {
    padding: var(--space-3) var(--space-6);
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.integration-item:hover {
    background: #f8fafc;
    border-color: rgba(0, 0, 0, 0.12);
}

/* ----------------------------------------
   Agents Bento Grid
   ---------------------------------------- */
.agents {
    background: #f8fafc;
}

.agents-bento {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

@media (min-width: 640px) {
    .agents-bento {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .agents-bento {
        grid-template-columns: repeat(4, 1fr);
    }
}

.agent-card {
    padding: var(--space-6);
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.agent-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent-400), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.agent-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

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

.agent-card.agent-lg {
    grid-column: span 1;
}

@media (min-width: 640px) {
    .agent-card.agent-lg {
        grid-column: span 2;
    }
}

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

.agent-emoji {
    font-size: var(--font-size-2xl);
}

.agent-badge {
    padding: var(--space-1) var(--space-3);
    background: rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

[data-theme="dark"] .agent-badge {
    background: rgba(255, 255, 255, 0.05);
}

/* Badge colors by category */
.agent-card[data-category="growth"] .agent-badge { color: var(--color-cta-400); background: rgba(249, 115, 22, 0.1); }
.agent-card[data-category="student"] .agent-badge { color: var(--color-accent-300); background: rgba(45, 212, 191, 0.1); }
.agent-card[data-category="academic"] .agent-badge { color: var(--color-primary-200); background: rgba(91, 168, 196, 0.1); }
.agent-card[data-category="operations"] .agent-badge { color: #a78bfa; background: rgba(167, 139, 250, 0.1); }
.agent-card[data-category="governance"] .agent-badge { color: #fbbf24; background: rgba(251, 191, 36, 0.1); }

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

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

.agent-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.agent-features li {
    padding: var(--space-1) var(--space-3);
    background: rgba(0, 0, 0, 0.03);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

[data-theme="dark"] .agent-features li {
    background: rgba(255, 255, 255, 0.03);
}

/* Central Engine Cards */
.central-engine {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 768px) {
    .central-engine {
        grid-template-columns: repeat(2, 1fr);
    }
}

.engine-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    border: 1px solid;
}

.engine-card.strategy {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.05), rgba(251, 191, 36, 0.02));
    border-color: rgba(251, 191, 36, 0.2);
}

.engine-card.core {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.1), rgba(20, 184, 166, 0.02));
    border-color: rgba(20, 184, 166, 0.3);
}

.engine-icon {
    font-size: var(--font-size-3xl);
}

.engine-content h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
}

.engine-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ----------------------------------------
   Platform Visual Section
   ---------------------------------------- */
.platform-visual {
    padding: var(--space-8) 0;
    background: linear-gradient(180deg, #f1f5f9 0%, #f8fafc 100%);
}

.platform-image-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(0, 0, 0, 0.08);
    background: #ffffff;
}

.platform-overview-img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.platform-image-wrapper:hover .platform-overview-img {
    transform: scale(1.02);
}

/* ----------------------------------------
   Interactive Presentation/Slideshow
   ---------------------------------------- */
.presentation {
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.slideshow-container {
    max-width: 1000px;
    margin: 0 auto;
}

.slideshow-main {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.slide-viewport {
    flex: 1;
    overflow: hidden;
    border-radius: var(--radius-xl);
    background: #ffffff;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.slide-track {
    position: relative;
    width: 100%;
}

.slide {
    display: none;
    width: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.slide.active {
    display: block;
    opacity: 1;
}

.slide img {
    width: 100%;
    height: auto;
    display: block;
}

/* Navigation Arrows */
.slide-nav {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
}

.slide-nav:hover {
    background: var(--color-accent-400);
    color: white;
    border-color: var(--color-accent-400);
    transform: scale(1.05);
}

.slide-nav:active {
    transform: scale(0.95);
}

.slide-nav svg {
    width: 24px;
    height: 24px;
}

/* Slide Controls */
.slide-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    margin-top: var(--space-6);
    padding: 0 var(--space-2);
}

.slide-counter {
    display: flex;
    align-items: baseline;
    gap: var(--space-1);
    font-family: var(--font-family);
}

.current-slide {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-bold);
    color: var(--color-accent-500);
}

.slide-separator {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
}

.total-slides {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
}

.slide-progress {
    flex: 1;
    height: 4px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 6.67%;
    background: linear-gradient(90deg, var(--color-accent-500), var(--color-accent-400));
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

.slide-actions {
    display: flex;
    gap: var(--space-2);
}

.slide-action-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.slide-action-btn:hover {
    background: #f8fafc;
    color: var(--color-accent-500);
    border-color: var(--color-accent-400);
}

.slide-action-btn svg {
    width: 20px;
    height: 20px;
}

.play-pause .pause-icon {
    display: none;
}

.play-pause.playing .play-icon {
    display: none;
}

.play-pause.playing .pause-icon {
    display: block;
}

/* Thumbnails */
.slide-thumbnails {
    margin-top: var(--space-6);
    overflow-x: auto;
    padding: var(--space-2) 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.slide-thumbnails::-webkit-scrollbar {
    display: none;
}

.thumbnails-track {
    display: flex;
    gap: var(--space-2);
    justify-content: center;
}

.thumbnail {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.thumbnail:hover {
    border-color: var(--color-accent-400);
    color: var(--color-accent-500);
}

.thumbnail.active {
    background: var(--color-accent-500);
    border-color: var(--color-accent-500);
    color: white;
}

/* Fullscreen Mode */
.slideshow-container.fullscreen {
    position: fixed;
    inset: 0;
    max-width: none;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-8);
}

.slideshow-container.fullscreen .slideshow-main {
    flex: 1;
    max-height: calc(100vh - 180px);
}

.slideshow-container.fullscreen .slide-viewport {
    background: transparent;
    border: none;
    box-shadow: none;
    max-height: 100%;
}

.slideshow-container.fullscreen .slide img {
    max-height: calc(100vh - 200px);
    width: auto;
    margin: 0 auto;
    object-fit: contain;
}

.slideshow-container.fullscreen .slide-nav {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.slideshow-container.fullscreen .slide-nav:hover {
    background: var(--color-accent-400);
    border-color: var(--color-accent-400);
}

.slideshow-container.fullscreen .slide-controls {
    padding: var(--space-4);
}

.slideshow-container.fullscreen .current-slide {
    color: var(--color-accent-400);
}

.slideshow-container.fullscreen .slide-separator,
.slideshow-container.fullscreen .total-slides {
    color: rgba(255, 255, 255, 0.6);
}

.slideshow-container.fullscreen .slide-progress {
    background: rgba(255, 255, 255, 0.2);
}

.slideshow-container.fullscreen .slide-action-btn {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.slideshow-container.fullscreen .slide-action-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-accent-400);
}

.slideshow-container.fullscreen .thumbnail {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
}

.slideshow-container.fullscreen .thumbnail:hover {
    border-color: var(--color-accent-400);
}

.slideshow-container.fullscreen .thumbnail.active {
    background: var(--color-accent-500);
    border-color: var(--color-accent-500);
    color: white;
}

/* Dark mode slideshow */
[data-theme="dark"] .presentation {
    background: linear-gradient(180deg, var(--color-primary-800) 0%, var(--color-primary-900) 100%);
}

[data-theme="dark"] .slide-viewport {
    background: var(--bg-secondary);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .slide-nav {
    background: var(--bg-secondary);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

[data-theme="dark"] .slide-nav:hover {
    background: var(--color-accent-400);
    border-color: var(--color-accent-400);
}

[data-theme="dark"] .slide-progress {
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .slide-action-btn {
    background: var(--bg-secondary);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

[data-theme="dark"] .slide-action-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--color-accent-400);
}

[data-theme="dark"] .thumbnail {
    background: var(--bg-secondary);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

[data-theme="dark"] .thumbnail:hover {
    border-color: var(--color-accent-400);
}

/* Responsive slideshow */
@media (max-width: 768px) {
    .slideshow-main {
        flex-direction: column;
    }

    .slide-nav {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 44px;
        height: 44px;
        z-index: 10;
        opacity: 0.9;
    }

    .slide-prev {
        left: var(--space-2);
    }

    .slide-next {
        right: var(--space-2);
    }

    .slide-controls {
        flex-wrap: wrap;
        gap: var(--space-4);
    }

    .slide-progress {
        order: -1;
        width: 100%;
        flex: none;
    }

    .thumbnails-track {
        justify-content: flex-start;
        padding: 0 var(--space-2);
    }
}

/* Dark mode platform visual */
[data-theme="dark"] .platform-visual {
    background: linear-gradient(180deg, var(--color-primary-800) 0%, var(--color-primary-900) 100%);
}

[data-theme="dark"] .platform-image-wrapper {
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.02);
}

/* ----------------------------------------
   Capabilities Section
   ---------------------------------------- */
.capabilities {
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

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

@media (min-width: 640px) {
    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .capabilities-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.capability-item {
    padding: var(--space-8);
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.capability-item:hover {
    background: rgba(0, 0, 0, 0.04);
    border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .capability-item {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .capability-item:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
}

.capability-header {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .capability-header {
    border-bottom-color: rgba(255, 255, 255, 0.05);
}

.capability-header h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.capability-tag {
    font-size: var(--font-size-sm);
    color: var(--color-accent-300);
}

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

.capability-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.capability-list li::before {
    content: '→';
    color: var(--color-accent-400);
    flex-shrink: 0;
}

/* ----------------------------------------
   Results Section
   ---------------------------------------- */
.results {
    background: #f8fafc;
}

.results-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-16);
}

@media (min-width: 640px) {
    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .results-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.result-card {
    padding: var(--space-8);
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.05), rgba(45, 212, 191, 0.02));
    border: 1px solid rgba(20, 184, 166, 0.15);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.result-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.result-number {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-extrabold);
    color: var(--color-accent-300);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.result-unit {
    font-size: var(--font-size-2xl);
    opacity: 0.8;
}

.result-label {
    font-size: var(--font-size-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-3);
}

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

/* Testimonial */
.testimonial {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: var(--space-12);
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-2xl);
}

[data-theme="dark"] .testimonial {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.05);
}

.testimonial-quote {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    font-weight: var(--font-medium);
    font-style: italic;
    color: var(--text-primary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
}

.testimonial-quote::before {
    content: '"';
    color: var(--color-accent-400);
}

.testimonial-quote::after {
    content: '"';
    color: var(--color-accent-400);
}

.testimonial-author {
    display: flex;
    justify-content: center;
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.author-name {
    font-weight: var(--font-semibold);
}

.author-role {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ----------------------------------------
   Includes Section
   ---------------------------------------- */
.includes {
    background: linear-gradient(180deg, #f1f5f9 0%, #f8fafc 100%);
}

.includes-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .includes-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .includes-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.include-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.include-item:hover {
    background: #fafafa;
    border-color: rgba(0, 0, 0, 0.12);
}

[data-theme="dark"] .include-item {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .include-item:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
}

.include-check {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    stroke: var(--color-success);
}

/* ----------------------------------------
   Pricing Section
   ---------------------------------------- */
.pricing {
    background: #f8fafc;
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    max-width: 1100px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
        align-items: stretch;
    }
}

.pricing-card {
    padding: var(--space-8);
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-2xl);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
    position: relative;
}

.pricing-card:hover {
    background: #fafafa;
    border-color: rgba(0, 0, 0, 0.15);
    transform: translateY(-4px);
}

[data-theme="dark"] .pricing-card {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .pricing-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
}

.pricing-card.featured {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.1), rgba(45, 212, 191, 0.05));
    border-color: var(--color-accent-400);
    box-shadow: var(--shadow-glow);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--color-accent-400), var(--color-accent-300));
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-semibold);
    color: var(--color-primary-900);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .pricing-header {
    border-bottom-color: rgba(255, 255, 255, 0.05);
}

.pricing-tier {
    font-size: var(--font-size-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-4);
}

.pricing-amount {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: baseline;
    gap: var(--space-1);
}

.price {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-bold);
    color: var(--color-accent-300);
}

.price-range {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-bold);
    color: var(--color-accent-300);
}

.price-period {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.pricing-features {
    flex: 1;
    margin-bottom: var(--space-8);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

[data-theme="dark"] .pricing-features li {
    border-bottom-color: rgba(255, 255, 255, 0.03);
}

.pricing-features li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: var(--font-bold);
}

.pricing-card .btn {
    width: 100%;
}

/* ----------------------------------------
   Why Us Section
   ---------------------------------------- */
.why-us {
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.why-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
}

@media (min-width: 1024px) {
    .why-content {
        grid-template-columns: 1fr 1fr;
    }
}

.why-text .section-tag {
    margin-bottom: var(--space-4);
}

.why-text .section-title {
    text-align: left;
    margin-bottom: var(--space-10);
}

.why-points {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.why-point {
    display: flex;
    gap: var(--space-5);
}

.why-icon {
    font-size: var(--font-size-2xl);
    flex-shrink: 0;
}

.why-info h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.why-info p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.why-visual {
    display: flex;
    justify-content: center;
}

.trust-badges {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    width: 100%;
    max-width: 400px;
}

.badge-item {
    padding: var(--space-6);
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-xl);
    transition: all var(--transition-fast);
}

.badge-item:hover {
    background: #fafafa;
    border-color: rgba(0, 0, 0, 0.12);
}

[data-theme="dark"] .badge-item {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .badge-item:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
}

.badge-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-value {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

/* ----------------------------------------
   CTA Section
   ---------------------------------------- */
.cta {
    position: relative;
    padding: var(--space-24) 0;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.cta-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
        rgba(20, 184, 166, 0.15) 0%,
        rgba(10, 22, 40, 0.9) 50%,
        rgba(249, 115, 22, 0.1) 100%
    );
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-6);
}

.cta-desc {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-10);
    line-height: var(--leading-relaxed);
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.cta-contact {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.contact-link {
    color: var(--color-accent-300);
    transition: color var(--transition-fast);
}

.contact-link:hover {
    color: var(--color-accent-200);
}

.contact-divider {
    color: var(--color-gray-600);
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
    background: #f1f5f9;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding: var(--space-16) 0 var(--space-8);
}

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

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 2fr 3fr;
    }
}

.footer-logo {
    height: 100px;
    width: auto;
    margin-bottom: var(--space-4);
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    max-width: 300px;
}

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

@media (min-width: 768px) {
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer-col h4 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

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

.footer-col a:hover {
    color: var(--color-accent-300);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    text-align: center;
}

[data-theme="dark"] .footer-bottom {
    border-top-color: rgba(255, 255, 255, 0.05);
}

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

/* ----------------------------------------
   Animations & Scroll Effects
   ---------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animations for grids */
.reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease-out;
}

.reveal-stagger.active > *:nth-child(1) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.reveal-stagger.active > *:nth-child(2) { transition-delay: 0.15s; opacity: 1; transform: translateY(0); }
.reveal-stagger.active > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.reveal-stagger.active > *:nth-child(4) { transition-delay: 0.25s; opacity: 1; transform: translateY(0); }
.reveal-stagger.active > *:nth-child(5) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.reveal-stagger.active > *:nth-child(6) { transition-delay: 0.35s; opacity: 1; transform: translateY(0); }
.reveal-stagger.active > *:nth-child(7) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.reveal-stagger.active > *:nth-child(8) { transition-delay: 0.45s; opacity: 1; transform: translateY(0); }
.reveal-stagger.active > *:nth-child(9) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }
.reveal-stagger.active > *:nth-child(10) { transition-delay: 0.55s; opacity: 1; transform: translateY(0); }
.reveal-stagger.active > *:nth-child(11) { transition-delay: 0.6s; opacity: 1; transform: translateY(0); }
.reveal-stagger.active > *:nth-child(12) { transition-delay: 0.65s; opacity: 1; transform: translateY(0); }

/* ----------------------------------------
   Dark Mode Overrides
   ---------------------------------------- */
[data-theme="dark"] .platform {
    background: linear-gradient(180deg, var(--color-primary-800) 0%, var(--color-primary-900) 100%);
}

[data-theme="dark"] .agents {
    background: var(--color-primary-900);
}

[data-theme="dark"] .capabilities {
    background: linear-gradient(180deg, var(--color-primary-900) 0%, var(--color-primary-800) 100%);
}

[data-theme="dark"] .results {
    background: var(--color-primary-800);
}

[data-theme="dark"] .includes {
    background: linear-gradient(180deg, var(--color-primary-900) 0%, var(--color-primary-800) 100%);
}

[data-theme="dark"] .pricing {
    background: var(--color-primary-800);
}

[data-theme="dark"] .why-us {
    background: linear-gradient(180deg, var(--color-primary-800) 0%, var(--color-primary-900) 100%);
}

[data-theme="dark"] .cta-gradient {
    background: linear-gradient(135deg,
        rgba(20, 184, 166, 0.15) 0%,
        rgba(10, 22, 40, 0.95) 50%,
        rgba(249, 115, 22, 0.15) 100%
    );
}

[data-theme="dark"] .footer {
    background: var(--color-primary-900);
}

[data-theme="dark"] .feature-card,
[data-theme="dark"] .agent-card,
[data-theme="dark"] .capability-item,
[data-theme="dark"] .result-card,
[data-theme="dark"] .pricing-card,
[data-theme="dark"] .include-item,
[data-theme="dark"] .badge-item,
[data-theme="dark"] .testimonial {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.05);
    box-shadow: none;
}

[data-theme="dark"] .feature-card:hover,
[data-theme="dark"] .agent-card:hover,
[data-theme="dark"] .capability-item:hover,
[data-theme="dark"] .pricing-card:hover,
[data-theme="dark"] .badge-item:hover {
    background: rgba(255, 255, 255, 0.04);
    box-shadow: 0 0 40px rgba(20, 184, 166, 0.1);
}

[data-theme="dark"] .pricing-card.featured {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.15), rgba(45, 212, 191, 0.05));
    border-color: var(--color-accent-400);
}

[data-theme="dark"] .mini-agent {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .mini-agent:hover {
    background: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .engine-card.strategy {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.15), rgba(251, 191, 36, 0.05));
}

[data-theme="dark"] .engine-card.core {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.15), rgba(20, 184, 166, 0.05));
}

[data-theme="dark"] .nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
}

[data-theme="dark"] .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .btn-outline {
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
}

[data-theme="dark"] .btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .btn-ghost {
    color: var(--text-secondary);
}

[data-theme="dark"] .btn-ghost:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* ----------------------------------------
   Contact Form
   ---------------------------------------- */
.contact-form {
    max-width: 600px;
    margin: 0 auto var(--space-12);
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--space-4);
    background: var(--bg-secondary);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    color: var(--text-primary);
    transition: all 0.2s ease;
    font-family: inherit;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-400);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    background-size: 20px;
    padding-right: var(--space-12);
}

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

.form-submit {
    width: 100%;
    justify-content: center;
    margin-top: var(--space-4);
}

.form-status {
    text-align: center;
    margin-top: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #22c55e;
}

.form-status.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

.form-status.loading {
    display: block;
    background: rgba(20, 184, 166, 0.1);
    border: 1px solid rgba(20, 184, 166, 0.3);
    color: var(--color-accent-400);
}

/* Dark mode form styles */
[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
    background: var(--bg-secondary);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group select:focus,
[data-theme="dark"] .form-group textarea:focus {
    border-color: var(--color-accent-400);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
}

[data-theme="dark"] .form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}

/* Responsive form */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
}

/* ----------------------------------------
   Agent Modal
   ---------------------------------------- */
.agent-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.agent-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
}

.modal-container {
    position: relative;
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
}

[data-theme="dark"] .modal-container {
    background: var(--bg-secondary);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.agent-modal.active .modal-container {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 10;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--text-primary);
}

[data-theme="dark"] .modal-close {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

.modal-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-5);
    padding: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] .modal-header {
    border-bottom-color: rgba(255, 255, 255, 0.06);
}

.modal-icon {
    font-size: 3rem;
    line-height: 1;
    flex-shrink: 0;
}

.modal-title-wrapper {
    flex: 1;
}

.modal-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: rgba(20, 184, 166, 0.15);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-accent-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-2);
}

.modal-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.modal-body {
    padding: var(--space-6) var(--space-8);
}

.modal-description {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.modal-features,
.modal-benefits {
    margin-bottom: var(--space-6);
}

.modal-features h4,
.modal-benefits h4 {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-3);
}

.modal-feature-list,
.modal-benefit-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: var(--space-3);
}

.modal-feature-list li,
.modal-benefit-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.modal-feature-list li::before {
    content: '✓';
    color: var(--color-accent-400);
    font-weight: 600;
    flex-shrink: 0;
}

.modal-benefit-list li::before {
    content: '→';
    color: var(--color-cta-400);
    font-weight: 600;
    flex-shrink: 0;
}

.modal-footer {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-6) var(--space-8);
    padding-top: 0;
}

.modal-footer .btn {
    flex: 1;
    justify-content: center;
}

/* Make mini-agents clickable */
.mini-agent {
    cursor: pointer;
    transition: all 0.3s ease;
}

.mini-agent:hover {
    transform: scale(1.05);
    border-color: var(--color-accent-400);
    box-shadow: 0 0 20px rgba(20, 184, 166, 0.3);
}

.central-brain {
    cursor: pointer;
    transition: all 0.3s ease;
}

.central-brain:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(20, 184, 166, 0.4);
}

/* Engine cards clickable */
.engine-card {
    cursor: pointer;
    transition: all 0.3s ease;
}

.engine-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(20, 184, 166, 0.3);
}

.engine-card.strategy:hover {
    box-shadow: 0 8px 30px rgba(251, 191, 36, 0.3);
}

/* Dark mode modal styles */
[data-theme="dark"] .modal-backdrop {
    background: rgba(0, 0, 0, 0.7);
}

[data-theme="dark"] .modal-container {
    background: var(--bg-secondary);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .modal-close {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .modal-header {
    border-bottom-color: rgba(255, 255, 255, 0.06);
}

/* Modal responsive */
@media (max-width: 768px) {
    .agent-modal {
        padding: var(--space-4);
    }

    .modal-container {
        max-height: 85vh;
    }

    .modal-header {
        padding: var(--space-6);
        padding-bottom: var(--space-4);
    }

    .modal-icon {
        font-size: 2.5rem;
    }

    .modal-title {
        font-size: var(--text-xl);
    }

    .modal-body {
        padding: var(--space-4) var(--space-6);
    }

    .modal-footer {
        flex-direction: column;
        padding: var(--space-4) var(--space-6);
    }
}

/* ----------------------------------------
   Accessibility
   ---------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* Focus styles */
:focus-visible {
    outline: 2px solid var(--color-accent-400);
    outline-offset: 2px;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    padding: var(--space-4);
    background: var(--color-accent-400);
    color: var(--color-primary-900);
    z-index: var(--z-tooltip);
}

.skip-link:focus {
    top: 0;
}

/* ----------------------------------------
   Print Styles
   ---------------------------------------- */
@media print {
    .navbar,
    .hero-bg-effects,
    .scroll-indicator,
    .cta,
    .btn {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .section {
        padding: 1rem 0;
        page-break-inside: avoid;
    }
}