:root {
    /* Base variables (Dark mode by default) */
    --bg-primary: #050505;
    --bg-secondary: #0a0a0a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --accent-teal: #00d4aa;
    --accent-teal-dark: #00e6b8;
    --accent-teal-dim: rgba(0, 212, 170, 0.15);
    --accent-orange: #f97316;
    --accent-orange-dark: #fb923c;
    --accent-orange-dim: rgba(249, 115, 22, 0.15);
    --accent-blue: #3b82f6;
    --accent-blue-dark: #60a5fa;
    --accent-blue-dim: rgba(59, 130, 246, 0.15);
    --accent-purple: #8b5cf6;
    --accent-purple-dark: #a78bfa;
    --accent-purple-dim: rgba(139, 92, 246, 0.15);
    --accent-yellow: #eab308;
    
    --border: rgba(255, 255, 255, 0.08);
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.7);

    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --radius-xl: 48px;

    --orb-opacity: 0.15;
    --glass-blur: 24px;
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.7);
    --bg-card-hover: rgba(255, 255, 255, 0.9);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --border: rgba(0, 0, 0, 0.08);
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08);

    --orb-opacity: 0.2;
}

.glass {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Animated gradient orbs */
.gradient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(140px);
    opacity: var(--orb-opacity);
    pointer-events: none;
    z-index: 0;
    transition: opacity 0.5s;
}

.orb-1 {
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--accent-teal), transparent 70%);
    top: -300px;
    right: -300px;
    animation: float 20s ease-in-out infinite;
}

.orb-2 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, var(--accent-purple), transparent 70%);
    bottom: -100px;
    left: -200px;
    animation: float 25s ease-in-out infinite reverse;
}

.orb-3 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-yellow), transparent 70%);
    top: 30%;
    left: 40%;
    animation: float 22s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg) scale(1); }
    33% { transform: translate(30px, -30px) rotate(5deg) scale(1.05); }
    66% { transform: translate(-20px, 20px) rotate(-5deg) scale(0.95); }
}

/* Navigation */
.nav {
    position: fixed;
    top: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1200px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 2rem;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border);
    border-radius: 100px;
    box-shadow: var(--shadow);
    z-index: 100;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-cta {
    background: var(--bg-card) !important;
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    border: 1px solid var(--border);
}

.theme-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.1rem;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8rem 5% 4rem;
    text-align: center;
}

.hero-image {
    position: relative;
    width: 400px;
    height: 500px;
    max-width: 90vw;
    margin-bottom: 2rem;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-xl);
    position: relative;
    z-index: 2;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.hero-image::after {
    content: '';
    position: absolute;
    inset: -15px;
    border-radius: var(--radius-xl);
    background: conic-gradient(from 0deg, var(--accent-teal), var(--accent-blue), var(--accent-purple), var(--accent-teal));
    z-index: 1;
    filter: blur(30px);
    opacity: 0.4;
    animation: rotate-glow 6s linear infinite;
}

@keyframes rotate-glow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-text h1 {
    font-size: 5rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 1rem;
    letter-spacing: -0.04em;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
}

/* Pill Buttons */
.contact-links {
    display: flex;
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    width: 100%;
}

.contact-btn {
    width: auto;
    padding: 0.8rem 1.6rem;
    border-radius: 100px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border);
    color: var(--text-primary);
    transition: all 0.3s ease;
    font-size: 1rem;
}

.contact-btn:hover {
    background: var(--bg-card-hover);
    transform: scale(1.02);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-icon {
    display: flex;
    align-items: center;
    width: 20px;
    height: 20px;
}

/* Sections */
.section {
    padding: 8rem 5%;
    max-width: 1000px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    background: var(--bg-card-hover);
}

/* Philosophy */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.philosophy-card {
    padding: 2rem;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
}

.philosophy-number {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-teal);
    margin-bottom: 1rem;
    display: block;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

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

.timeline-item {
    position: relative;
    padding-left: 3rem;
    padding-bottom: 4rem;
}

.timeline-marker {
    position: absolute;
    left: -6px;
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent-teal);
    border: 3px solid var(--bg-primary);
}

/* Footer */
.footer {
    padding: 4rem 5%;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Bio Section */
.bio-card {
    padding: 3rem;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.bio-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-teal), var(--accent-purple), var(--accent-blue));
    opacity: 0.8;
}

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

.bio-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.bio-text:last-child {
    margin-bottom: 0;
}

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

.highlight {
    color: var(--accent-teal);
    font-weight: 500;
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

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

@media (max-width: 768px) {
    .hero-text h1 {
        font-size: 3.5rem;
    }
    
    .nav {
        width: 95%;
        padding: 0.75rem 1.5rem;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .nav-links a:not(.nav-cta) {
        display: none;
    }

    .bio-card {
        padding: 2rem;
    }

    .bio-text {
        font-size: 1rem;
    }
}