:root {
    --bg-color: #f4f4f5;
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-border: rgba(255, 255, 255, 0.5);
    --text-main: #18181b;
    --text-muted: #52525b;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --pill-bg: #e4e4e7;
}

[data-theme="dark"] {
    --bg-color: #09090b;
    --card-bg: rgba(24, 24, 27, 0.7);
    --card-border: rgba(39, 39, 42, 0.5);
    --text-main: #fafafa;
    --text-muted: #a1a1aa;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --pill-bg: #27272a;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.navbar {
    width: 100%;
    max-width: 1000px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.05em;
}

.theme-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(10px);
    color: var(--text-main);
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-btn:hover {
    transform: scale(1.05);
}

[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; }

.bento-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 200px;
    gap: 1.5rem;
    width: 100%;
    max-width: 1000px;
}

.bento-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(16px);
    border-radius: 1.5rem;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

.hero-card {
    grid-column: span 2;
    grid-row: span 2;
    justify-content: space-between;
}

.hero-card h1 {
    font-size: 3rem;
    letter-spacing: -0.05em;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.hero-card p {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.5;
    margin-bottom: 2rem;
    max-width: 90%;
}

.primary-btn {
    align-self: flex-start;
    background-color: var(--accent);
    color: #ffffff;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    text-decoration: none;
    font-weight: 500;
}

.primary-btn:hover {
    background-color: var(--accent-hover);
}

.stat-card {
    align-items: center;
    text-align: center;
}

.stat-card h2 {
    font-size: 4rem;
    letter-spacing: -0.05em;
    color: var(--accent);
}

.stat-card p {
    color: var(--text-muted);
    font-weight: 500;
}

.tech-card {
    grid-column: span 2;
}

.tech-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.pill-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-pill {
    background-color: var(--pill-bg);
    color: var(--text-main);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.project-card {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: transform 0.2s ease;
}

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

.project-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.project-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.project-link {
    background: var(--pill-bg);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.map-card {
    grid-row: span 2;
    justify-content: flex-start;
    position: relative;
    overflow: hidden;
}

.map-card h3 {
    z-index: 2;
}

.map-card p {
    color: var(--text-muted);
    z-index: 2;
}

.map-visual {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    opacity: 0.2;
    border-radius: 50%;
}

.contact-card {
    grid-column: span 3;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

.contact-card h3 {
    font-size: 2rem;
    letter-spacing: -0.05em;
}

.contact-link {
    color: var(--text-main);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 500;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.25rem;
}

@media (max-width: 900px) {
    .bento-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-card {
        grid-column: span 2;
    }
    
    .contact-card {
        grid-column: span 2;
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

@media (max-width: 600px) {
    .bento-container {
        grid-template-columns: 1fr;
    }
    
    .hero-card, .tech-card, .contact-card {
        grid-column: span 1;
    }
    
    .map-card {
        grid-row: span 1;
    }
}