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

:root {
    --bg-dark: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-glow: rgba(59, 130, 246, 0.5);
    --border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: radial-gradient(circle at top left, #1e293b, var(--bg-dark));
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

header {
    text-align: center;
    padding: 6rem 2rem 4rem;
    position: relative;
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.8), transparent);
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    z-index: -1;
    filter: blur(80px);
    opacity: 0.5;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 300;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem 6rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    margin: 4rem 0 2rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 40px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: var(--accent-glow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card h3 {
    font-size: 1.4rem;
    font-weight: 600;
}

.badge {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-hover);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.process {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    color: #cbd5e1;
    border-left: 3px solid var(--accent);
}

.process strong {
    color: #fff;
    display: block;
    margin-bottom: 0.3rem;
}

.btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    transition: background 0.3s ease, box-shadow 0.3s ease;
    margin-top: auto;
}

.btn:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 15px var(--accent-glow);
}

.viz-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(12px);
    transition: transform 0.3s ease;
}

.viz-card:hover {
    transform: translateY(-5px);
    border-color: var(--border);
}

.viz-img-container {
    width: 100%;
    height: 300px;
    overflow: hidden;
    position: relative;
    background: #fff; /* White bg for scientific plots */
}

.viz-img-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.5s ease;
}

.viz-card:hover .viz-img-container img {
    transform: scale(1.05);
}

.viz-content {
    padding: 2rem;
}

.viz-content h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.viz-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

footer {
    text-align: center;
    padding: 3rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    .grid {
        grid-template-columns: 1fr;
    }
}