/* Rocket Hachette - Modern Publisher Theme */
:root {
    --primary: #1e293b;
    --accent: #e11d48;
    --accent-hover: #be123c;
    --bg-light: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #334155;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
}

body {
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
}

header {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--primary);
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    transition: color 0.2s;
}

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

.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #ffffff;
    padding: 4rem 2rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: #94a3b8;
    margin-bottom: 2rem;
}

.container {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 2rem;
}

.section-title {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 2px;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: transform 0.25s, box-shadow 0.25s;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
}

.card-tag {
    display: inline-block;
    background-color: #ffe4e6;
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    text-transform: uppercase;
    margin: 1.25rem 1.25rem 0 1.25rem;
    width: fit-content;
}

.card-body {
    padding: 1rem 1.25rem 1.5rem 1.25rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 1.25rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
    text-decoration: none;
    font-weight: 700;
    line-height: 1.4;
}

.card-title a {
    color: inherit;
    text-decoration: none;
}

.card-title a:hover {
    color: var(--accent);
}

.card-excerpt {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

.card-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 0.75rem;
}

footer {
    background-color: var(--primary);
    color: #94a3b8;
    padding: 3rem 2rem 1.5rem 2rem;
    margin-top: 4rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h4 {
    color: #ffffff;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col ul li a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-col ul li a:hover {
    color: #ffffff;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 1.5rem;
    border-top: 1px solid #334155;
    text-align: center;
    font-size: 0.9rem;
}

/* Post detail page styling */
.post-header {
    background-color: #ffffff;
    padding: 3rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

.post-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    background: #ffffff;
    border-radius: 12px;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
}

.post-title {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.post-meta-detail {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    display: flex;
    gap: 1rem;
}

.post-content p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: #334155;
}

.post-content h2 {
    color: var(--primary);
    margin: 2rem 0 1rem 0;
}

.back-btn {
    display: inline-block;
    margin-top: 2rem;
    padding: 0.6rem 1.2rem;
    background-color: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
}

.back-btn:hover {
    background-color: var(--accent-hover);
}