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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #f59e0b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 20px;
}

.main-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    overflow: hidden;
}

header {
    background: var(--primary-color);
    color: white;
    padding: 30px 20px;
    text-align: center;
}

header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
    font-weight: 700;
}

nav {
    background: var(--secondary-color);
    padding: 10px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}

nav a {
    color: #e2e8f0;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 8px 12px;
    border-radius: 6px;
    transition: all 0.2s;
}

nav a:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

nav a.active {
    background: var(--accent-color);
    color: white;
}

.content {
    padding: 40px;
}

.hero-img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0 auto 30px;
    border-radius: 8px;
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

h2 {
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-color);
}

.feature-box {
    background: #f1f5f9;
    border-left: 4px solid var(--accent-color);
    padding: 20px;
    margin: 30px 0;
    border-radius: 0 8px 8px 0;
}

.cta-button {
    display: inline-block;
    background: var(--accent-color);
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 700;
    margin-top: 20px;
    transition: transform 0.2s;
}

.cta-button:hover {
    transform: translateY(-2px);
}

footer {
    text-align: center;
    padding: 30px;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

@media (max-width: 600px) {
    .content { padding: 20px; }
    header h1 { font-size: 1.5rem; }
}