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

:root {
    /* Light theme tokens */
    --bg: #ffffff;
    --text: #232f3e;
    --muted: #687078;
    --panel: #ffffff;
    --panel-muted: #f8fafc;
    --border: #e5e7eb;
    --accent: #7877c6;
    --accent-2: #6b6ab8;
    --grad-1: #7877c6;
    --grad-2: #a855f7;
    --grad-aws-1: #10b981;
    --grad-aws-2: #059669;
    --grad-warm-1: #f59e0b;
    --grad-warm-2: #d97706;
}

.dark {
    /* Dark theme tokens */
    --bg: #0b1220;
    --text: #e6eaf3;
    --muted: #a3adba;
    --panel: #111827;
    --panel-muted: #0f172a;
    --border: #2a3342;
    --accent: #9aa0ff;
    --accent-2: #8b92f2;
    --grad-1: #9aa0ff;
    --grad-2: #c084fc;
    --grad-aws-1: #34d399;
    --grad-aws-2: #10b981;
    --grad-warm-1: #fbbf24;
    --grad-warm-2: #f59e0b;
}

body {
    font-family: 'Amazon Ember', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 99, 132, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(54, 162, 235, 0.1) 0%, transparent 50%);
    z-index: -1;
}

.aws-link {
    background: var(--accent);
    color: #ffffff;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.2s ease;
    margin-top: 2rem;
    display: inline-block;
    border: none;
}

.aws-link:hover {
    background: var(--accent-2);
    transform: translateY(-1px);
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    position: relative;
}

.hero {
    background: var(--panel);
    border-radius: 8px;
    padding: 60px 40px;
    margin-bottom: 40px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    text-align: center;
    position: relative;
}

.hero::after {
    content: '';
    position: absolute;
    top: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--grad-1) 0%, var(--grad-2) 100%);
    border-radius: 8px;
    opacity: 0.8;
}

.hero h1 {
    color: var(--text);
    font-size: 48px;
    font-weight: 700;
    margin: 20px 0 8px 0;
    letter-spacing: -0.02em;
}

.tagline {
    font-size: 18px;
    color: var(--muted);
    margin-bottom: 16px;
    font-weight: 400;
}

.profile-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border);
    margin: 0 auto 20px auto;
    display: block;
}

.fun-facts {
    background: var(--panel);
    border-radius: 8px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: relative;
}

.fun-facts::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 40px;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--grad-aws-1) 0%, var(--grad-aws-2) 100%);
    border-radius: 6px;
    opacity: 0.9;
}

.fun-facts h3 {
    text-align: left;
    color: var(--text);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 32px;
    letter-spacing: -0.02em;
}

.facts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.fact-card {
    background: var(--panel-muted);
    border: 1px solid var(--border);
    padding: 24px;
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
}

.fact-card::before {
    content: '';
    position: absolute;
    top: 16px;
    right: 16px;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--grad-1) 0%, var(--grad-2) 100%);
    border-radius: 4px;
    opacity: 0.7;
}

.fact-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.fact-card h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text);
}

.fact-card p {
    color: var(--muted);
    font-size: 18px;
    line-height: 1.5;
}

.fact-card a {
    color: var(--accent);
    text-decoration: none;
}

.fact-card a:hover {
    text-decoration: underline;
}

.aws-journey {
    background: var(--panel);
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: relative;
}

.aws-journey::after {
    content: '';
    position: absolute;
    bottom: 20px;
    left: 20px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--grad-warm-1) 0%, var(--grad-warm-2) 100%);
    border-radius: 6px;
    opacity: 0.8;
}

.aws-journey h3 {
    color: var(--text);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.aws-journey p {
    font-size: 16px;
    color: var(--muted);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.cta-button {
    display: inline-block;
    background: var(--accent);
    color: #ffffff;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.2s ease;
}

.cta-button:hover {
    background: var(--accent-2);
    transform: translateY(-1px);
}

footer {
    text-align: center;
    padding: 40px 20px;
    color: var(--muted);
    font-size: 14px;
}

/* Theme toggle button */
.theme-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-radius: 999px;
    background: var(--panel);
    color: var(--text);
    border: 1px solid var(--border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.15s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    z-index: 10;
}

.theme-toggle:hover { transform: translateY(-1px); }
.theme-toggle:active { transform: translateY(0); }

@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }
    
    .tagline {
        font-size: 16px;
    }
    
    .profile-photo {
        width: 100px;
        height: 100px;
    }
    
    main {
        padding: 20px;
    }
    
    .hero, .fun-facts, .aws-journey {
        padding: 24px;
    }
    
    .fun-facts h3, .aws-journey h3 {
        font-size: 24px;
    }
}