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

/* Accessibility: Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--white);
    color: var(--black);
    padding: 8px;
    text-decoration: none;
    z-index: 100;
    border-radius: 0 0 4px 0;
}

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

/* Focus styles for better accessibility */
*:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Remove focus outline for mouse users */
*:focus:not(:focus-visible) {
    outline: none;
}

/* Visible focus for keyboard users */
*:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

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

:root {
    --black: #000000;
    --white: #ffffff;
    --gray-100: #f7f7f7;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --accent: #0066ff;
    --accent-hover: #0052cc;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

html {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    background: var(--black);
    color: var(--white);
    overflow-x: hidden;
}

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 40px;
    transition: var(--transition);
}

nav.scrolled {
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 15px 40px;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    gap: 40px;
    align-items: center;
    list-style: none;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--white);
    transition: width 0.3s ease;
}

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

.nav-cta {
    background: var(--white);
    color: var(--black);
    padding: 10px 24px;
    border-radius: 100px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    font-size: 15px;
}

.nav-cta:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.5);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    background: transparent;
    border: none;
    padding: 4px;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0 40px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-bg-gradient {
    position: absolute;
    width: 150%;
    height: 150%;
    top: -25%;
    left: -25%;
    background: radial-gradient(circle at 20% 50%, var(--accent) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, #764ba2 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, #667eea 0%, transparent 50%);
    opacity: 0.4;
    filter: blur(100px);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

.hero-content {
    max-width: 1200px;
    text-align: center;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    margin-bottom: 40px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.05);
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: clamp(48px, 10vw, 120px);
    font-weight: 800;
    line-height: 0.9;
    letter-spacing: -3px;
    margin-bottom: 30px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: clamp(18px, 3vw, 24px);
    color: var(--gray-400);
    max-width: 600px;
    margin: 0 auto 50px;
    font-weight: 400;
    line-height: 1.6;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.btn {
    padding: 16px 40px;
    border-radius: 100px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
}

.btn-primary {
    background: var(--white);
    color: var(--black);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(255, 255, 255, 0.3);
}

.btn-secondary {
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--white);
    background: transparent;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}


.programs {
    padding: 120px 40px;
    background: var(--white);
    color: var(--black);
    position: relative;
    overflow: hidden;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 80px;
}

.section-label {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 20px;
}

.section-desc {
    font-size: 20px;
    color: var(--gray-600);
    line-height: 1.6;
}

.programs-grid {
    display: flex;
    flex-direction: column;
    gap: 60px;
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.program-card {
    display: block;
    text-decoration: none;
    position: relative;
    padding: 0;
    transition: var(--transition);
}

.program-card:hover {
    transform: translateY(-5px);
}

@media (max-width: 768px) {
    .programs-grid {
        gap: 50px;
    }
}


.program-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    position: relative;
    z-index: 1;
    color: var(--black);
}

.program-desc {
    font-size: 18px;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.program-link {
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    z-index: 1;
    transition: gap 0.3s ease;
}

.program-link:hover {
    gap: 16px;
}

.impact {
    padding: 120px 40px;
    background: var(--black);
    position: relative;
    overflow: hidden;
}

.impact-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
    background-image: 
        radial-gradient(circle at 25% 25%, var(--accent) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, var(--accent) 0%, transparent 50%);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
}

.impact-item {
    text-align: center;
    position: relative;
    z-index: 1;
}

.impact-number {
    font-size: clamp(48px, 8vw, 80px);
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    letter-spacing: -2px;
}

.impact-label {
    font-size: 20px;
    color: var(--gray-400);
    font-weight: 500;
}

.cta {
    padding: 120px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

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

.cta-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(45deg, transparent, transparent 35px, rgba(255,255,255,.05) 35px, rgba(255,255,255,.05) 70px);
    z-index: 0;
}

.cta h2 {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

.cta p {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 40px;
    line-height: 1.6;
}

footer {
    background: var(--black);
    padding: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--gray-400);
    line-height: 1.6;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 15px;
    line-height: 2;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
}

.footer-copy {
    color: var(--gray-500);
    font-size: 14px;
}

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

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

.animate-in {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

@media (max-width: 768px) {
    nav {
        padding: 15px 20px;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 0;
        flex-direction: column;
        background: var(--black);
        width: 100%;
        height: 100vh;
        align-items: center;
        justify-content: center;
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .menu-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .hero {
        padding: 80px 20px 60px 20px;
        min-height: 100vh;
        min-height: 100dvh;
    }
    
    .hero-content {
        padding-top: 20px;
    }
    
    .hero-subtitle {
        padding: 0 15px;
    }
    
    .hero-cta {
        margin-bottom: 40px;
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: auto;
        min-width: auto;
        padding: 14px 24px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        text-align: center;
    }
}

/* iOS specific fixes */
@supports (-webkit-touch-callout: none) {
    @media (max-width: 768px) {
        .hero {
            padding: 100px 20px 80px 20px;
            min-height: 100vh;
            min-height: -webkit-fill-available;
        }
        
        .hero-content {
            padding-top: 30px;
        }
        
        .hero-subtitle {
            padding: 0 20px;
        }
        
        .hero-cta {
            margin-bottom: 60px;
        }
    }
}

/* iPhone notch support */
@media (max-width: 768px) {
    .hero {
        padding-top: max(80px, env(safe-area-inset-top) + 60px);
        padding-bottom: max(60px, env(safe-area-inset-bottom) + 40px);
    }
}