/* style.css */

:root {
    --primary-color: #3b82f6;
    --secondary-color: #60a5fa;
    --background: #f9fafb;
    --text-color: #111827;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background);
    color: var(--text-color);
    transition: background 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.hero {
    padding: 6rem 2rem;
    text-align: center;
    background: linear-gradient(145deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
}

button {
    padding: 0.75rem 1.5rem;
    background: var(--text-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s ease;
}

button:hover {
    background: #1e40af;
}

section {
    padding: 4rem 2rem;
    border-bottom: 1px solid #e5e7eb;
}

section:last-child {
    border-bottom: none;
}

.card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 10px 25px -12px rgba(0,0,0,0.25);
    transition: transform 0.2s ease;
}

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

.footer {
    background: var(--text-color);
    color: white;
    text-align: center;
    padding: 3rem 2rem;
}

.dark {
    background: #1a1a1a;
    color: white;
}

.dark .hero {
    background: linear-gradient(145deg, #3730a3, #525252);
    color: white;
}

.dark .footer {
    background: #111;
    color: #ddd;
}

.dark .card {
    background: #2a2a2a;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}