/*
Theme Name: Portal Dark Landing Theme
Theme URI: https://example.com/
Author: Custom Dev
Description: Theme WordPress giao diện tối chuẩn SEO tối ưu tốc độ cho trang cổng thông tin & tin tức.
Version: 1.0
Text Domain: portal-dark
*/

:root {
    --bg-main: #0b0e14;
    --bg-card: #151a24;
    --bg-header: #11151d;
    --accent-gold: #f5b027;
    --accent-gold-hover: #ffbe3d;
    --accent-red: #e63946;
    --text-light: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #262f40;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-light);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    font-size: 15px;
}

a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: 0.2s ease;
}

a:hover {
    color: var(--accent-gold-hover);
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header & Navigation */
.site-header {
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 999;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 12px 0;
}

.nav-toggle {
    display: none;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    padding: 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-light);
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    cursor: pointer;
}

.nav-toggle__icon {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 20px;
    height: 16px;
}

.nav-toggle__bar {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--accent-gold);
    border-radius: 1px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-header.is-nav-open .nav-toggle__bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.site-header.is-nav-open .nav-toggle__bar:nth-child(2) {
    opacity: 0;
}

.site-header.is-nav-open .nav-toggle__bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.site-logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--accent-gold);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.cta-buttons {
    display: flex;
    gap: 10px;
}

.btn {
    padding: 8px 18px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 13px;
    text-transform: uppercase;
    display: inline-block;
    cursor: pointer;
    border: none;
}

.btn-login {
    background: transparent;
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
}

.btn-login:hover {
    background: rgba(245, 176, 39, 0.1);
}

.btn-register {
    background: linear-gradient(135deg, #f5b027, #d98a00);
    color: #000;
}

.btn-register:hover {
    background: linear-gradient(135deg, #ffbe3d, #e69500);
    color: #000;
}

.main-nav {
    background: #181e29;
    border-top: 1px solid var(--border-color);
}

.main-nav .primary-menu, .main-nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    padding: 8px 0;
    margin: 0;
    justify-content: center;
}

.main-nav a {
    color: var(--text-light);
    font-weight: 600;
    font-size: 13px;
    padding: 6px 12px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.main-nav a img {
    width: 22px;
    height: 22px;
    object-fit: contain;
    display: block;
    flex-shrink: 0;
}

.main-nav a:hover {
    background: var(--accent-gold);
    color: #000;
}

.mobile-nav-cta {
    display: none;
}

/* Hero Banner */
.hero-section {
    background: radial-gradient(circle at top, #1f293d 0%, var(--bg-main) 75%);
    padding: 35px 0 25px;
    text-align: center;
}

.hero-banner-box {
    background: linear-gradient(90deg, #1b2230, #252e42);
    border: 1px solid var(--accent-gold);
    border-radius: 12px;
    padding: 30px 20px;
    margin-bottom: 25px;
}

.hero-banner-box h1 {
    font-size: 26px;
    color: var(--accent-gold);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.hero-banner-box p {
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto 20px;
}

/* Access Links Table */
.section-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 25px;
}

.section-title {
    font-size: 18px;
    color: var(--accent-gold);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
}

.link-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.link-table th, .link-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

.link-table th {
    background: #1c2331;
    color: var(--accent-gold);
    font-size: 14px;
}

.status-badge {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

/* Category Grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 25px;
}

.cat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 18px 12px;
    text-align: center;
    transition: transform 0.2s, border-color 0.2s;
}

.cat-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-gold);
}

.cat-card h3 {
    font-size: 15px;
    color: var(--text-light);
    margin-top: 8px;
}

/* SEO Content Block */
.seo-content h2 {
    color: var(--accent-gold);
    font-size: 20px;
    margin: 22px 0 10px;
}

.seo-content h3 {
    color: #fff;
    font-size: 17px;
    margin: 16px 0 8px;
}

.seo-content p, .seo-content ul {
    color: #cbd5e1;
    margin-bottom: 12px;
}

.seo-content ul {
    padding-left: 20px;
}

.seo-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.seo-content a {
    color: var(--accent-gold);
}

.page-featured-image {
    display: block;
    width: 100%;
    height: auto;
    margin-bottom: 20px;
    border-radius: 8px;
}

.entry-meta {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 12px;
}

/* Latest Posts Grid */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}

.post-card {
    background: #1a202c;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.post-thumb {
    height: 150px;
    background: #252e42;
    overflow: hidden;
}

.post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-body {
    padding: 15px;
    flex: 1;
}

.post-body h3 {
    font-size: 15px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.post-body p {
    font-size: 13px;
    color: var(--text-muted);
}

/* Footer */
.site-footer {
    background: var(--bg-header);
    border-top: 1px solid var(--border-color);
    padding: 40px 0 20px;
    margin-top: 40px;
    color: var(--text-muted);
    font-size: 13px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
    margin-bottom: 25px;
}

.footer-col h4 {
    color: var(--accent-gold);
    font-size: 15px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

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

.footer-col ul li {
    margin-bottom: 6px;
}

.footer-col ul a {
    color: var(--text-muted);
}

.footer-col ul a:hover {
    color: var(--accent-gold);
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: inline-flex;
    }

    .header-top .cta-buttons {
        display: none;
    }

    .main-nav .primary-navigation {
        display: none;
        padding-bottom: 12px;
    }

    .site-header.is-nav-open .primary-navigation {
        display: block;
    }

    .main-nav .primary-menu,
    .main-nav ul {
        flex-direction: column;
        flex-wrap: nowrap;
        gap: 0;
        padding: 0;

    }

    .main-nav li {
        border-bottom: 1px solid var(--border-color);
    }

    .main-nav li:last-child {
        border-bottom: none;
    }

    .main-nav a {
        width: 100%;
        padding: 12px 10px;
        font-size: 14px;
    }

    .mobile-nav-cta {
        display: flex;
        gap: 10px;
        padding: 14px 0 4px;
        border-top: 1px solid var(--border-color);
        margin-top: 4px;
    }

    .mobile-nav-cta .btn {
        flex: 1;
        text-align: center;
    }

    .site-logo {
        font-size: 18px;
        flex: 1;
        min-width: 0;
    }

    .hero-banner-box h1 { font-size: 20px; }
    .link-table th, .link-table td { padding: 8px; font-size: 13px; }
}