/* Shared styles for Quizzy content pages.
   Design tokens mirror the inline styles in index.php. */

:root {
    --bg-primary: #FAFAF8;
    --bg-secondary: #FFFFFF;
    --text-primary: #1A1A1A;
    --text-secondary: #6B7280;
    --accent: #10B981;
    --accent-hover: #059669;
    --accent-gradient: linear-gradient(135deg, #10B981, #059669);
    --border: #E5E7EB;
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-lg: 16px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
    width: 100%;
    flex: 1;
}

.content-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 48px;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.content-card h1 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.content-card h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-top: 36px;
    margin-bottom: 12px;
}

.content-card h2:first-of-type {
    margin-top: 0;
}

.content-card p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.content-card ul {
    color: var(--text-secondary);
    margin: 0 0 16px 24px;
}

.content-card li {
    margin-bottom: 8px;
}

.content-card strong {
    color: var(--text-primary);
    font-weight: 600;
}

.content-card a {
    color: var(--accent);
    text-decoration: none;
}

.content-card a:hover {
    text-decoration: underline;
}

.callout {
    background: #F0FDF4;
    border-left: 4px solid var(--accent);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
}

.callout p:last-child {
    margin-bottom: 0;
}

.back-link {
    display: inline-block;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    width: 100%;
}

.content-card a.btn,
.btn {
    background: var(--accent-gradient);
    color: #FFFFFF;
    border: none;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    display: inline-block;
    text-decoration: none;
}

.content-card a.btn:hover,
.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    filter: brightness(1.1);
    text-decoration: none;
    color: #FFFFFF;
}

.footer {
    margin-top: 60px;
    padding: 30px 20px;
    background: white;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-links {
    margin-bottom: 15px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin: 0 15px;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent);
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 640px) {
    .content-card {
        padding: 28px 24px;
    }

    .content-card h1 {
        font-size: 1.75rem;
    }

    .footer-links a {
        margin: 0 8px;
    }
}