:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --text: #1f2937;
    --muted: #6b7280;
    --bg: #e0efff;
    --card: rgba(255, 255, 255, 0.95);
    --border: #c2d6f0;
    --shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.15);
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text);
    background: var(--bg);
    background-image:
        linear-gradient(135deg, #e0efff 0%, #b3d1ff 100%);
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
    min-height: 100vh;
}
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.2;
    background-image: url("data:image/svg+xml,%3Csvg width='400' height='400' viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Ctext x='40' y='60' font-family='Arial' font-size='40' fill='%232563eb'%3E📚%3C/text%3E%3Ctext x='300' y='100' font-family='Arial' font-size='40' fill='%232363eb'%3E✒️%3C/text%3E%3Ctext x='100' y='240' font-family='Arial' font-size='40' fill='%232563eb'%3E📜%3C/text%3E%3Ctext x='320' y='320' font-family='Arial' font-size='40' fill='%232563eb'%3E⚖️%3C/text%3E%3Ctext x='200' y='380' font-family='Arial' font-size='40' fill='%232563eb'%3E📖%3C/text%3E%3C/svg%3E");
    background-size: 500px 500px;
}
header {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 1.25rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
}
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
}
h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.2;
}
h2 {
    font-size: 1.75rem;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}
.subtitle {
    color: var(--muted);
    font-size: 1.2rem;
    max-width: 600px;
}
.hero {
    background: var(--card);
    border-radius: 24px;
    padding: 3rem;
    margin-top: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    text-align: center;
    backdrop-filter: blur(10px);
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    margin: 0.5rem;
    transition: all 0.2s ease;
    font-size: 1rem;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.23);
}
.btn-secondary {
    background: #fff;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover {
    background: #f1f5f9;
    transform: translateY(-2px);
}
.prices {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}
.price-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    backdrop-filter: blur(10px);
}
.price-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}
.price-card h3 {
    margin: 0 0 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
}
.price-card p {
    margin: 0.5rem 0;
    color: var(--muted);
    font-size: 1rem;
}
.price {
    font-weight: 800;
    color: var(--primary);
    font-size: 1.5rem;
    margin-top: 1rem;
    display: block;
}
footer {
    margin-top: 4rem;
    padding: 3rem 1.5rem;
    background: var(--card);
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.95rem;
    text-align: center;
    backdrop-filter: blur(10px);
}
.legal-links {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}
.legal-links a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}
.legal-links a:hover { text-decoration: underline; }
.warning {
    background: #fffbeb;
    border-left: 4px solid #f59e0b;
    padding: 1.25rem;
    border-radius: 12px;
    margin-top: 2rem;
    color: #92400e;
    font-size: 0.95rem;
}
.contact { margin-top: 1rem; font-size: 1.1rem; }
@media (max-width: 640px) {
    h1 {
        font-size: 1.5rem;
        word-break: normal;
        overflow-wrap: normal;
    }
    h2 { font-size: 1.35rem; }
    .hero { padding: 1.75rem 1rem; }
    .subtitle { font-size: 1.05rem; }
}