@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ===================================
   DESIGN SYSTEM - COLOR PALETTE
   Warm, emotional, and mission-driven
   =================================== */

:root {
    /* Dark Mode - Warm & Sophisticated */
    --bg-primary: #0a0a0b;
    --bg-secondary: #141416;
    --bg-tertiary: #1c1c1f;
    --bg-card: #1a1a1d;
    --bg-card-hover: #212125;
    --bg-elevated: #252529;

    /* Text Hierarchy */
    --text-primary: #fafafa;
    --text-secondary: #b4b4b8;
    --text-tertiary: #85858a;
    --text-muted: #5c5c61;

    /* Borders & Dividers */
    --border-primary: #2a2a2e;
    --border-secondary: #3a3a3f;
    --border-subtle: #1f1f23;

    /* Accent Colors - Warm & Inspiring */
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-warm: #f59e0b;
    --accent-success: #10b981;
    --accent-hover: #4f46e5;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-warm: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    --gradient-hero: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, rgba(0, 0, 0, 0) 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -2px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.7), 0 10px 10px -5px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);

    /* Spacing Scale - Perfect Rhythm */
    --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;

    /* Typography Scale */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* Line Heights */
    --leading-tight: 1.2;
    --leading-snug: 1.4;
    --leading-normal: 1.6;
    --leading-relaxed: 1.75;

    /* 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 cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

body.light-mode {
    /* Light Mode - DRAMATICALLY Softer - Like Reading Mode */
    --bg-primary: #d5d7da;
    --bg-secondary: #e3e5e8;
    --bg-tertiary: #c8cacd;
    --bg-card: #e8eaed;
    --bg-card-hover: #dfe1e4;
    --bg-elevated: #f0f1f3;

    --text-primary: #1c1e21;
    --text-secondary: #4a4d52;
    --text-tertiary: #6e7175;
    --text-muted: #8a8d92;

    --border-primary: #c1c4c8;
    --border-secondary: #a8abb0;
    --border-subtle: #d5d7da;

    --shadow-sm: 0 1px 3px 0 rgba(60, 64, 67, 0.15);
    --shadow-md: 0 4px 8px -1px rgba(60, 64, 67, 0.2), 0 2px 4px -2px rgba(60, 64, 67, 0.12);
    --shadow-lg: 0 10px 20px -3px rgba(60, 64, 67, 0.25), 0 4px 8px -2px rgba(60, 64, 67, 0.12);
    --shadow-xl: 0 20px 30px -5px rgba(60, 64, 67, 0.25), 0 10px 15px -5px rgba(60, 64, 67, 0.15);
    --shadow-glow: 0 0 28px rgba(99, 102, 241, 0.2);

    --gradient-hero: linear-gradient(180deg, rgba(99, 102, 241, 0.06) 0%, rgba(0, 0, 0, 0) 100%);
}

/* ===================================
   BASE STYLES
   =================================== */

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: var(--leading-normal);
    font-size: var(--text-base);
    transition: background-color var(--transition-base), color var(--transition-base);
}

#content {
    transition: opacity var(--transition-smooth);
    flex: 1;
}

/* ===================================
   HEADER & NAVIGATION - MOBILE-FIRST
   =================================== */

header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(12px) saturate(180%);
    transition: all var(--transition-base);
}

body.light-mode header {
    background-color: rgba(227, 229, 232, 0.95);
}

body:not(.light-mode) header {
    background-color: rgba(20, 20, 22, 0.9);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-5) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-desktop {
    max-width: 44px;
    height: auto;
    transition: all var(--transition-base);
    filter: brightness(1.1);
    flex-shrink: 0;
}

body.light-mode .logo-desktop {
    filter: invert(1) brightness(0.9);
}

header h1 {
    margin: 0;
    font-size: var(--text-xl);
    font-weight: 800;
    letter-spacing: -0.025em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: var(--leading-tight);
}

/* Desktop Navigation */
.nav-desktop {
    display: none;
}

.nav-desktop ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: var(--space-2);
}

.nav-desktop ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
    display: inline-block;
    position: relative;
}

.nav-desktop ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: var(--gradient-primary);
    transition: transform var(--transition-base);
}

.nav-desktop ul li a:hover {
    color: var(--accent-primary);
    background-color: var(--bg-tertiary);
}

.nav-desktop ul li a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

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

/* Theme Toggle */
.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    color: var(--text-primary);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: var(--text-base);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
}

.theme-toggle:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-secondary);
    transform: translateY(-1px);
}

.theme-toggle:active {
    transform: translateY(0);
}

/* Mobile Menu Toggle (Hamburger) */
.mobile-menu-toggle {
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--space-2);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    position: relative;
}

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

.hamburger-icon::before,
.hamburger-icon::after {
    content: '';
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    position: absolute;
    left: 0;
    transition: all var(--transition-base);
}

.hamburger-icon::before {
    top: -8px;
}

.hamburger-icon::after {
    bottom: -8px;
}

.mobile-menu-toggle:hover .hamburger-icon,
.mobile-menu-toggle:hover .hamburger-icon::before,
.mobile-menu-toggle:hover .hamburger-icon::after {
    background: var(--accent-primary);
}

/* Mobile Menu Overlay */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background: var(--bg-secondary);
    z-index: 2000;
    transition: right var(--transition-smooth);
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.3);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-content {
    padding: var(--space-8) var(--space-6);
    height: 100%;
    overflow-y: auto;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-8);
}

.mobile-menu-header h2 {
    margin: 0;
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
}

.mobile-menu-close {
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--space-2);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    font-size: var(--text-4xl);
    line-height: 1;
    transition: all var(--transition-fast);
}

.mobile-menu-close:hover {
    color: var(--accent-primary);
    transform: rotate(90deg);
}

.mobile-menu-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.mobile-nav-link {
    display: block;
    padding: var(--space-5) var(--space-6);
    color: var(--text-primary);
    text-decoration: none;
    font-size: var(--text-lg);
    font-weight: 500;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    text-align: left;
    min-height: 56px;
    display: flex;
    align-items: center;
}

.mobile-nav-link:hover,
.mobile-nav-link:active {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: translateX(4px);
}

/* Desktop Breakpoint */
@media (min-width: 1024px) {
    .header-container {
        padding: var(--space-6) var(--space-8);
    }

    .header-left {
        gap: var(--space-4);
    }

    .logo-desktop {
        max-width: 56px;
    }

    header h1 {
        font-size: var(--text-3xl);
        font-weight: 700;
    }

    .nav-desktop {
        display: block;
    }

    .mobile-menu-toggle {
        display: none;
    }

    .theme-toggle {
        padding: var(--space-2) var(--space-4);
    }
}

/* ===================================
   MAIN LAYOUT
   =================================== */

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-16) var(--space-6);
    text-align: left;
    width: 100%;
}

/* ===================================
   HERO SECTION
   =================================== */

.hero {
    text-align: center;
    padding: var(--space-24) var(--space-6);
    background: var(--gradient-hero);
    border-radius: var(--radius-2xl);
    margin-bottom: var(--space-20);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

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

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

.hero-headline {
    font-size: clamp(var(--text-4xl), 5vw, var(--text-6xl));
    font-weight: 800;
    margin-bottom: var(--space-6);
    line-height: var(--leading-tight);
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subheadline {
    font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl));
    color: var(--text-secondary);
    margin-bottom: var(--space-12);
    line-height: var(--leading-relaxed);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Hero Stats - Balanced Mission-Focused */
.hero-stats-balanced {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    margin: var(--space-12) 0;
    padding: var(--space-8) var(--space-10);
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-md);
    animation: fadeInUp 0.8s ease-out 0.3s backwards;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    min-width: 140px;
}

.stat-number-medium {
    font-size: var(--text-5xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: var(--leading-tight);
    margin-bottom: var(--space-2);
}

.stat-text-medium {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-2);
}

.stat-label-medium {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, transparent, var(--border-secondary), transparent);
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--space-12);
}

/* ===================================
   BUTTONS - PREMIUM DESIGN
   =================================== */

.button-primary,
.cta .button,
.action-button {
    background: var(--gradient-primary);
    color: white;
    padding: var(--space-4) var(--space-8);
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--text-base);
    display: inline-block;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md), 0 0 0 0 rgba(99, 102, 241, 0);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.button-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.button-primary:hover::before {
    left: 100%;
}

.button-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.button-primary:active {
    transform: translateY(0);
}

.button-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    padding: var(--space-4) var(--space-8);
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--text-base);
    display: inline-block;
    transition: all var(--transition-base);
    border: 1px solid var(--border-primary);
}

.button-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===================================
   SECTIONS
   =================================== */

.section-title {
    font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
    font-weight: 700;
    margin-bottom: var(--space-6);
    text-align: center;
    letter-spacing: -0.02em;
    line-height: var(--leading-tight);
}

.section-subtitle {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--space-12);
    line-height: var(--leading-relaxed);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Impact Section */
.impact-section {
    padding: var(--space-20) 0;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-12);
}

.impact-card {
    background: var(--bg-card);
    padding: var(--space-10);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    transition: all var(--transition-base);
    text-align: center;
}

.impact-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-primary);
}

.impact-icon {
    font-size: var(--text-5xl);
    margin-bottom: var(--space-6);
    filter: grayscale(0.3);
    transition: all var(--transition-base);
}

.impact-card:hover .impact-icon {
    filter: grayscale(0);
    transform: scale(1.1);
}

.impact-card h3 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

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

/* How It Works Section */
.how-it-works {
    padding: var(--space-20) 0;
    background: var(--bg-secondary);
    border-radius: var(--radius-2xl);
    margin: var(--space-20) 0;
    padding: var(--space-16);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
    align-items: center;
    margin: var(--space-12) 0;
}

.step {
    background: var(--bg-card);
    padding: var(--space-10);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
}

.step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-3xl);
    font-weight: 700;
    margin: 0 auto var(--space-6) auto;
    box-shadow: var(--shadow-md);
}

.step h3 {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

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

.step-connector {
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
    display: none;
}

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

    .step-connector {
        display: block;
        width: 60px;
    }
}

.cta-centered {
    text-align: center;
    margin-top: var(--space-12);
}

/* Testimonials Section */
.testimonials {
    padding: var(--space-20) 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-12);
}

.testimonial-card {
    background: var(--bg-card);
    padding: var(--space-10);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-secondary);
}

.testimonial-quote {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
    font-style: italic;
    position: relative;
    padding-left: var(--space-6);
    border-left: 3px solid var(--accent-primary);
}

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

.author-name {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
}

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

/* Final CTA Section */
.final-cta {
    text-align: center;
    padding: var(--space-20) var(--space-8);
    background: var(--gradient-hero);
    border-radius: var(--radius-2xl);
    margin: var(--space-20) 0;
}

.final-cta h2 {
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

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

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

/* ===================================
   SCHOOLS PAGE
   =================================== */

.schools-hero {
    text-align: center;
    padding: var(--space-16) 0;
    margin-bottom: var(--space-12);
}

.chapter-count-display {
    margin-top: var(--space-12);
    display: flex;
    justify-content: center;
}

.count-circle {
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    padding: var(--space-10);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    min-width: 200px;
    min-height: 200px;
    animation: fadeInScale 0.8s ease-out;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.big-number {
    font-size: var(--text-6xl);
    font-weight: 900;
    color: white;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.count-label {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.schools-section-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    text-align: center;
    margin: var(--space-16) 0 var(--space-12) 0;
    color: var(--text-primary);
}

.schools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-6);
}

.school-card {
    display: flex;
    align-items: center;
    background-color: var(--bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    padding: var(--space-6);
    transition: all var(--transition-base);
    animation: fadeInUp 0.6s ease-out backwards;
}

.school-card:nth-child(1) { animation-delay: 0.05s; }
.school-card:nth-child(2) { animation-delay: 0.1s; }
.school-card:nth-child(3) { animation-delay: 0.15s; }
.school-card:nth-child(4) { animation-delay: 0.2s; }
.school-card:nth-child(5) { animation-delay: 0.25s; }
.school-card:nth-child(6) { animation-delay: 0.3s; }
.school-card:nth-child(7) { animation-delay: 0.35s; }

.school-card:hover {
    background-color: var(--bg-card-hover);
    box-shadow: var(--shadow-lg);
    transform: translateX(4px) translateY(-2px);
    border-color: var(--accent-primary);
}

.school-logo {
    max-width: 70px;
    margin-right: var(--space-6);
    flex-shrink: 0;
    border-radius: var(--radius-md);
    background: white;
    padding: var(--space-3);
    transition: transform var(--transition-base);
}

.school-card:hover .school-logo {
    transform: scale(1.05);
}

.school-info {
    flex: 1;
}

.school-info h3 {
    margin: 0 0 var(--space-2) 0;
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    line-height: var(--leading-tight);
}

.school-location {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-bottom: var(--space-2);
}

.school-president {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.school-president strong {
    color: var(--accent-primary);
    font-weight: 600;
}

.join-chapters-cta {
    text-align: center;
    margin-top: var(--space-20);
    padding: var(--space-16);
    background: var(--gradient-hero);
    border-radius: var(--radius-2xl);
}

.join-chapters-cta h3 {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.join-chapters-cta p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    line-height: var(--leading-relaxed);
}

/* ===================================
   FOUNDER PAGE
   =================================== */

.founder-hero {
    text-align: center;
    padding: var(--space-16) 0 var(--space-12) 0;
}

.founder {
    background-color: var(--bg-card);
    padding: var(--space-12);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-primary);
    margin-bottom: var(--space-12);
}

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

@media (min-width: 768px) {
    .founder-content {
        grid-template-columns: 320px 1fr;
    }
}

.founder-image-container {
    position: relative;
}

.founder-image {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base);
}

.founder-image:hover {
    transform: scale(1.02);
}

.founder-badge {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 240px;
}

.badge-title {
    color: white;
    font-weight: 700;
    font-size: var(--text-lg);
}

.badge-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--text-sm);
}

.founder-text {
    padding-top: var(--space-8);
}

.founder-quote-highlight {
    background: var(--gradient-hero);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-10);
    border-left: 4px solid var(--accent-primary);
}

.pull-quote {
    font-size: var(--text-xl);
    line-height: var(--leading-relaxed);
    color: var(--text-primary);
    font-style: italic;
    font-weight: 500;
}

.founder-section-heading {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin: var(--space-10) 0 var(--space-4) 0;
    color: var(--text-primary);
}

.founder-text p {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

.founder-achievements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-6);
    margin: var(--space-8) 0;
}

.achievement-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    background: var(--bg-tertiary);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-primary);
    transition: all var(--transition-base);
}

.achievement-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-primary);
}

.achievement-icon {
    font-size: var(--text-3xl);
    flex-shrink: 0;
}

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

.achievement-text strong {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
}

.achievement-text span {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.founder-mission-box {
    background: var(--bg-elevated);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 2px solid var(--accent-primary);
    margin-top: var(--space-10);
}

.founder-mission-box h4 {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--accent-primary);
}

.founder-mission-box p {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
    margin: 0;
}

.founder-cta {
    text-align: center;
    padding: var(--space-16) var(--space-8);
    background: var(--gradient-hero);
    border-radius: var(--radius-2xl);
}

.founder-cta h3 {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.founder-cta p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
}

/* ===================================
   PARTNERS PAGE
   =================================== */

.partners-hero {
    text-align: center;
    padding: var(--space-16) 0 var(--space-12) 0;
}

.partners-impact {
    padding: var(--space-12) 0 var(--space-20) 0;
}

/* Partner Benefits Grid */
.partner-benefits {
    padding: var(--space-20) 0;
    background: var(--bg-secondary);
    border-radius: var(--radius-2xl);
    margin: var(--space-20) 0;
    padding: var(--space-16);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-12);
}

.benefit-card {
    background: var(--bg-card);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--gradient-primary);
    transition: height var(--transition-base);
}

.benefit-card:hover::before {
    height: 100%;
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.benefit-number {
    font-size: var(--text-sm);
    font-weight: 800;
    color: var(--accent-primary);
    margin-bottom: var(--space-3);
    letter-spacing: 0.1em;
}

.benefit-card h3 {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.benefit-card p {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
    margin: 0;
}

/* Become a Partner Section */
.become-partner {
    padding: var(--space-20) 0;
}

.become-partner-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    background: var(--bg-card);
    padding: var(--space-12);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
    .become-partner-content {
        grid-template-columns: 1.2fr 1fr;
    }
}

.become-partner-text h2 {
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.become-partner-text > p {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
}

.partner-requirements {
    background: var(--bg-tertiary);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-8);
    border: 1px solid var(--border-primary);
}

.partner-requirements h3 {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.partner-checklist {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.partner-checklist li {
    font-size: var(--text-base);
    color: var(--text-secondary);
    padding-left: var(--space-8);
    position: relative;
    line-height: var(--leading-relaxed);
}

.partner-checklist li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-success);
    font-weight: 700;
    font-size: var(--text-lg);
}

.partner-cta-buttons {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.become-partner-visual {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    justify-content: center;
}

.partner-stat-card {
    background: var(--gradient-hero);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    text-align: center;
    transition: all var(--transition-base);
}

.partner-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.partner-stat-icon {
    font-size: var(--text-5xl);
    margin-bottom: var(--space-3);
    filter: grayscale(0.2);
}

.partner-stat-number {
    font-size: var(--text-5xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: var(--leading-tight);
    margin-bottom: var(--space-2);
}

.partner-stat-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

/* ===================================
   CONTACT & START PAGES
   =================================== */

.intro, .contact, .schools, .start {
    background-color: var(--bg-card);
    padding: var(--space-12);
    margin: var(--space-8) 0;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-primary);
    transition: all var(--transition-base);
}

.intro:hover, .contact:hover, .schools:hover, .start:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--border-secondary);
}

.intro h2, .contact h2, .schools h2, .start h2 {
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: var(--space-6);
    color: var(--text-primary);
    letter-spacing: -0.02em;
    line-height: var(--leading-tight);
}

.intro p, .contact p, .schools p, .start p {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.contact > p {
    text-align: center;
    margin-bottom: var(--space-12);
}

/* Contact Methods Grid */
.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
    margin: var(--space-12) 0;
}

.contact-card {
    background: var(--bg-tertiary);
    padding: var(--space-10);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    text-align: center;
    transition: all var(--transition-base);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
    background: var(--bg-elevated);
}

.contact-icon {
    font-size: var(--text-6xl);
    margin-bottom: var(--space-4);
    filter: grayscale(0.2);
    transition: all var(--transition-base);
}

.contact-card:hover .contact-icon {
    filter: grayscale(0);
    transform: scale(1.1);
}

.contact-card h3 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.contact-card p {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    line-height: var(--leading-relaxed);
}

.contact-link {
    display: inline-block;
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--text-lg);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    transition: all var(--transition-fast);
}

.contact-link:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Contact CTA Section */
.contact-cta {
    background: var(--gradient-hero);
    padding: var(--space-12);
    border-radius: var(--radius-xl);
    text-align: center;
    margin-top: var(--space-12);
    border: 1px solid var(--border-primary);
}

.contact-cta h3 {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.contact-cta p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
}

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

/* Start Page Options */
.options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-8);
}

.option {
    background: var(--bg-tertiary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    padding: var(--space-10);
    text-align: center;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.option:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-primary);
    background: var(--bg-card-hover);
}

.option h3 {
    margin: 0 0 var(--space-4) 0;
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
}

.option p {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    flex-grow: 1;
}

/* ===================================
   FOOTER
   =================================== */

footer {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    width: 100%;
    margin-top: auto;
    border-top: 1px solid var(--border-primary);
    padding: var(--space-16) var(--space-8) var(--space-8) var(--space-8);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

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

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

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-logo {
    max-width: 60px;
    filter: brightness(1.1);
}

body.light-mode .footer-logo {
    filter: invert(1) brightness(0.9);
}

.footer-brand h3 {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.footer-tagline {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: var(--leading-relaxed);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-8);
}

.footer-column h4 {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-column ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-column a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-bottom p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin: 0;
}

.footer-mission {
    font-weight: 500;
    color: var(--text-secondary);
}

/* ===================================
   ANIMATIONS
   =================================== */

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

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 768px) {
    .header-container {
        padding: var(--space-4) var(--space-5);
    }

    .logo-desktop {
        max-width: 38px;
    }

    header h1 {
        font-size: var(--text-lg);
        font-weight: 800;
    }

    main {
        padding: var(--space-8) var(--space-4);
    }

    .hero {
        padding: var(--space-12) var(--space-4);
        margin-bottom: var(--space-8);
    }

    .hero-headline {
        font-size: var(--text-3xl);
        margin-bottom: var(--space-4);
    }

    .hero-subheadline {
        font-size: var(--text-lg);
        margin-bottom: var(--space-8);
    }

    .hero-stats-balanced {
        flex-direction: column;
        gap: var(--space-4);
        padding: var(--space-6) var(--space-5);
        margin: var(--space-8) 0;
    }

    .stat-number-medium {
        font-size: var(--text-4xl);
    }

    .stat-text-medium {
        font-size: var(--text-xl);
    }

    .stat-divider {
        width: 60%;
        height: 1px;
        background: linear-gradient(to right, transparent, var(--border-secondary), transparent);
    }

    .stat-item {
        min-width: auto;
        width: 100%;
    }

    .hero-cta {
        flex-direction: column;
        gap: var(--space-3);
        margin-top: var(--space-8);
    }

    .button-primary, .button-secondary {
        width: 100%;
        text-align: center;
        min-height: 52px;
        font-size: var(--text-base);
    }

    .section-title {
        font-size: var(--text-3xl);
    }

    .section-subtitle {
        font-size: var(--text-base);
        margin-bottom: var(--space-8);
    }

    .impact-section {
        padding: var(--space-12) 0;
    }

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

    .impact-card {
        padding: var(--space-8);
    }

    .testimonials {
        padding: var(--space-12) 0;
    }

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

    .testimonial-card {
        padding: var(--space-8);
    }

    .how-it-works {
        padding: var(--space-10) var(--space-5);
        margin: var(--space-12) 0;
    }

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

    .school-card {
        padding: var(--space-5);
    }

    .school-logo {
        max-width: 50px;
        margin-right: var(--space-4);
    }

    .founder-content {
        gap: var(--space-8);
    }

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

    .founder-achievements {
        grid-template-columns: 1fr;
    }

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

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

    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: var(--space-4) var(--space-4);
    }

    .logo-desktop {
        max-width: 34px;
    }

    header h1 {
        font-size: var(--text-base);
        font-weight: 800;
    }

    .hero {
        padding: var(--space-8) var(--space-4);
    }

    .hero-headline {
        font-size: var(--text-2xl);
    }

    .hero-subheadline {
        font-size: var(--text-base);
    }

    .section-title {
        font-size: var(--text-2xl);
    }

    .section-subtitle {
        font-size: var(--text-sm);
    }

    .stat-number-medium {
        font-size: var(--text-3xl);
    }

    .stat-text-medium {
        font-size: var(--text-lg);
    }

    .stat-label-medium {
        font-size: var(--text-xs);
    }

    .hero-stats-balanced {
        padding: var(--space-5) var(--space-4);
    }

    .button-primary, .button-secondary {
        min-height: 48px;
        padding: var(--space-3) var(--space-6);
    }

    .impact-card h3 {
        font-size: var(--text-xl);
    }

    .testimonial-quote {
        font-size: var(--text-base);
    }

    .count-circle {
        min-width: 160px;
        min-height: 160px;
        padding: var(--space-8);
    }

    .big-number {
        font-size: var(--text-5xl);
    }

    .school-card {
        padding: var(--space-4);
    }

    .school-info h3 {
        font-size: var(--text-lg);
    }
}

/* ===================================
   ACCESSIBILITY
   =================================== */

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

:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}