/*
Theme Name: 168 Portal
Theme URI: https://example.com/168-portal
Author: 168 Theme Team
Description: Theme WordPress responsive dành cho cổng nội dung giải trí, có hero, danh mục nổi bật, bài viết mới và footer nhiều cột.
Version: 1.1.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: portal168
Tags: custom-logo, custom-menu, featured-images, theme-options, translation-ready, blog, one-column
*/

:root {
  --c-primary: #0755c9;
  --c-primary-dark: #06399a;
  --c-accent: #d40b18;
  --c-gold: #ffc928;
  --c-ink: #0d2445;
  --c-muted: #5e6b7b;
  --c-surface: #f4f7fc;
  --c-border: #dbe4f0;
  --shadow: 0 14px 34px rgba(13, 48, 100, .12);
  --radius: 14px;
  --container: 1240px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--c-ink); background: #fff; font-family: "Segoe UI", Arial, sans-serif; font-size: 16px; line-height: 1.7; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-accent); }
button, input, textarea, select { font: inherit; }
.container { width: min(100% - 32px, var(--container)); margin-inline: auto; }
.screen-reader-text { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link:focus { position: fixed; z-index: 9999; top: 10px; left: 10px; width: auto; height: auto; clip: auto; margin: 0; padding: 10px 14px; background: #fff; color: #111; }

/* Header */
.site-header { position: relative; z-index: 100; background: #fff; box-shadow: 0 3px 14px rgba(0, 35, 90, .09); }
.header-main { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.site-branding { display: flex; align-items: center; min-width: 150px; }
.custom-logo-link img { max-height: 72px; width: auto; }
.text-logo { display: inline-flex; align-items: baseline; gap: 4px; color: var(--c-primary); font-weight: 900; font-style: italic; font-size: 36px; line-height: 1; letter-spacing: -2px; }
.text-logo em { color: var(--c-accent); font-size: 19px; letter-spacing: 0; }
.header-actions { display: flex; gap: 10px; margin-left: auto; }
.btn { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 7px; padding: 10px 22px; background: var(--c-primary); color: #fff; font-weight: 800; line-height: 1.2; text-transform: uppercase; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(5, 65, 160, .22); }
.btn-accent { background: var(--c-accent); }
.btn-outline { border: 2px solid rgba(255,255,255,.9); background: transparent; }
.btn-light { background: #fff; color: var(--c-primary); }
.btn-light:hover { color: var(--c-primary); }
.menu-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; padding: 0; border: 2px solid var(--c-primary); border-radius: 50%; background: #fff; color: var(--c-primary); font-size: 24px; cursor: pointer; }
.main-navigation { background: linear-gradient(90deg, var(--c-primary-dark), var(--c-primary)); }
.main-navigation ul { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 0; margin: 0; padding: 0; list-style: none; }
.main-navigation li { position: relative; }
.main-navigation a { display: block; padding: 14px 16px; color: #fff; font-size: 14px; font-weight: 800; line-height: 1.35; text-transform: uppercase; }
.main-navigation li:hover > a, .main-navigation .current-menu-item > a { background: rgba(255,255,255,.14); color: var(--c-gold); }
.main-navigation .sub-menu { position: absolute; top: 100%; left: 0; display: none; min-width: 220px; padding: 7px; background: #fff; border-radius: 0 0 10px 10px; box-shadow: var(--shadow); }
.main-navigation li:hover > .sub-menu, .main-navigation li:focus-within > .sub-menu { display: block; }
.main-navigation .sub-menu a { color: var(--c-ink); padding: 10px 12px; text-transform: none; }

/* Hero */
.hero { position: relative; isolation: isolate; min-height: 430px; display: grid; place-items: center; overflow: hidden; color: #fff; background: radial-gradient(circle at 74% 44%, rgba(28,133,255,.7), transparent 22%), radial-gradient(circle at 18% 30%, rgba(255,202,40,.22), transparent 24%), linear-gradient(115deg, #021b55, #064bba 56%, #0877e1); }
.hero::before, .hero::after { content: ""; position: absolute; z-index: -1; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; }
.hero::before { width: 520px; height: 520px; right: -110px; top: -160px; box-shadow: 0 0 0 50px rgba(255,255,255,.03), 0 0 0 100px rgba(255,255,255,.025); }
.hero::after { width: 290px; height: 290px; left: -90px; bottom: -160px; box-shadow: 0 0 0 40px rgba(255,201,40,.06); }
.hero.has-image { background-position: center; background-size: cover; }
.hero.has-image::before { inset: 0; width: auto; height: auto; border: 0; border-radius: 0; background: linear-gradient(90deg, rgba(1,25,77,.88), rgba(2,57,150,.55)); box-shadow: none; }
.hero-inner { padding-block: 70px; text-align: center; }
.hero-eyebrow { display: inline-flex; padding: 6px 13px; border: 1px solid rgba(255,255,255,.45); border-radius: 999px; background: rgba(255,255,255,.09); color: var(--c-gold); font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.hero h1 { max-width: 880px; margin: 16px auto 10px; color: #fff; font-size: clamp(34px, 6vw, 64px); line-height: 1.08; letter-spacing: -.035em; text-shadow: 0 5px 18px rgba(0,0,0,.22); }
.hero h1 span { color: var(--c-gold); }
.hero p { max-width: 720px; margin: 0 auto 26px; color: #e9f3ff; font-size: clamp(16px, 2vw, 20px); }
.hero-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }

/* Homepage */
.category-section { position: relative; z-index: 2; margin-top: -42px; padding-bottom: 28px; }
.game-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.game-card { position: relative; min-height: 190px; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; overflow: hidden; padding: 22px 12px 16px; border: 3px solid #fff; border-radius: var(--radius); color: #fff; text-align: center; box-shadow: var(--shadow); background: linear-gradient(145deg, #063d98, #0a72d6); transition: transform .25s ease, box-shadow .25s ease; }
.game-card:nth-child(2n) { background: linear-gradient(145deg, #5614a5, #145bd2); }
.game-card:nth-child(3n) { background: linear-gradient(145deg, #9c1428, #e44f1c); }
.game-card::before { content: ""; position: absolute; inset: -35% -40% 43%; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,.28), transparent 66%); }
.game-card:hover { color: #fff; transform: translateY(-8px); box-shadow: 0 20px 40px rgba(8, 53, 120, .22); }
.game-icon { position: relative; display: grid; place-items: center; width: 82px; height: 82px; margin-bottom: 10px; border: 2px solid rgba(255,255,255,.5); border-radius: 50%; background: rgba(255,255,255,.12); font-size: 42px; line-height: 1; }
.game-title { position: relative; font-size: 16px; font-weight: 900; text-transform: uppercase; }
.content-section { padding: 48px 0; }
.content-section.alt { background: var(--c-surface); }
.section-heading { margin: 0 0 28px; color: var(--c-primary); font-size: clamp(26px, 4vw, 38px); line-height: 1.2; text-align: center; text-transform: uppercase; }
.section-heading::after { content: ""; display: block; width: 86px; height: 4px; margin: 13px auto 0; border-radius: 99px; background: linear-gradient(90deg, var(--c-accent), var(--c-gold)); }
.intro-card { max-width: 1020px; margin: 0 auto; padding: clamp(22px, 4vw, 46px); border: 1px solid var(--c-border); border-radius: var(--radius); background: #fff; box-shadow: 0 8px 30px rgba(12,55,115,.07); }
.entry-content h1, .entry-content h2, .entry-content h3 { color: var(--c-primary); line-height: 1.28; }
.entry-content h1 { font-size: clamp(28px, 4vw, 42px); }
.entry-content h2 { margin-top: 1.5em; font-size: clamp(24px, 3vw, 32px); }
.entry-content h3 { font-size: 22px; }
.entry-content p { margin: 0 0 1.2em; text-align: justify; }
.entry-content figure { max-width: 100%; margin: 28px auto; }
.entry-content figcaption { padding-top: 8px; color: var(--c-muted); font-size: 13px; text-align: center; }
.feature-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 28px; }
.feature-item { padding: 20px 12px; border: 1px solid var(--c-border); border-radius: 10px; background: #fff; text-align: center; }
.feature-item strong { display: block; color: var(--c-primary); font-size: 17px; }
.feature-item span { color: var(--c-muted); font-size: 13px; }

/* Posts */
.posts-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.post-card { position: relative; overflow: hidden; border: 1px solid var(--c-border); border-radius: 12px; background: #fff; box-shadow: 0 5px 20px rgba(13,50,100,.07); transition: transform .2s ease, box-shadow .2s ease; }
.post-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.post-thumb { display: block; aspect-ratio: 2 / 1; overflow: hidden; background: linear-gradient(135deg, #0c3b86, #0a8be6); }
.post-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.post-card:hover .post-thumb img { transform: scale(1.05); }
.post-placeholder { height: 100%; display: grid; place-items: center; color: rgba(255,255,255,.9); font-size: 42px; }
.post-body { padding: 18px; text-align: center; }
.post-card h3 { margin: 0 0 9px; font-size: 17px; line-height: 1.35; }
.post-card h3 a { color: var(--c-ink); }
.post-card h3 a:hover { color: var(--c-primary); }
.post-card p { margin: 0; color: var(--c-muted); font-size: 14px; line-height: 1.55; }
.post-date { position: absolute; top: 10px; left: 10px; width: 48px; padding: 5px 3px; border: 2px solid #fff; border-radius: 8px; background: var(--c-primary); color: #fff; font-size: 11px; line-height: 1.15; text-align: center; text-transform: uppercase; }
.post-date strong { display: block; font-size: 18px; }
.pagination { margin-top: 35px; text-align: center; }
.nav-links { display: flex; justify-content: center; gap: 7px; }
.page-numbers { display: grid; place-items: center; min-width: 38px; height: 38px; padding: 0 10px; border: 1px solid var(--c-border); border-radius: 7px; background: #fff; }
.page-numbers.current { border-color: var(--c-primary); background: var(--c-primary); color: #fff; }

/* Generic pages */
.page-hero { padding: 52px 0; background: linear-gradient(115deg, #031f5c, var(--c-primary)); color: #fff; text-align: center; }
.page-hero h1 { margin: 0; color: #fff; font-size: clamp(30px, 5vw, 48px); }
.page-shell { padding: 55px 0; }
.page-shell .entry-content { max-width: 900px; margin: auto; }
.meta { color: var(--c-muted); font-size: 14px; }
.single-featured { margin: 0 auto 30px; border-radius: var(--radius); }
.empty-state { max-width: 680px; margin: auto; padding: 55px 20px; text-align: center; }
.search-form { display: flex; max-width: 540px; margin: 24px auto 0; }
.search-form label { flex: 1; }
.search-field { width: 100%; min-height: 46px; padding: 10px 14px; border: 1px solid var(--c-border); border-radius: 7px 0 0 7px; }
.search-submit { border-radius: 0 7px 7px 0; }

/* Footer */
.site-footer { position: relative; color: #eaf3ff; background: radial-gradient(circle at 50% 0, rgba(27,148,255,.55), transparent 36%), #063e9a; }
.footer-main { padding: 52px 0 30px; }
.footer-about { display: grid; grid-template-columns: 150px 1fr; align-items: center; gap: 24px; padding-bottom: 34px; border-bottom: 1px solid rgba(255,255,255,.2); }
.footer-mark { display: grid; place-items: center; width: 130px; height: 130px; border: 3px solid rgba(255,255,255,.65); border-radius: 26px; background: rgba(255,255,255,.12); color: #fff; font-size: 34px; font-weight: 900; transform: rotate(-4deg); }
.footer-about p { margin: 0; text-align: center; }
.footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 45px; padding-top: 35px; }
.footer-col h2 { margin: 0 0 16px; color: #fff; font-size: 20px; text-align: center; }
.footer-col ul { margin: 0; padding-left: 22px; }
.footer-col a { color: #fff; }
.footer-col a:hover { color: var(--c-gold); }
.partner-strip { margin-top: 30px; padding: 14px; border: 1px solid rgba(255,255,255,.22); border-radius: 8px; color: rgba(255,255,255,.82); text-align: center; font-size: 13px; letter-spacing: .12em; word-spacing: 1.4em; text-transform: uppercase; }
.footer-bottom { padding: 15px 0; background: rgba(0,20,71,.38); text-align: center; font-size: 13px; font-weight: 700; }
.back-to-top { position: fixed; right: 20px; bottom: 20px; z-index: 80; display: none; width: 42px; height: 42px; place-items: center; border: 2px solid #fff; border-radius: 50%; background: var(--c-primary); color: #fff; box-shadow: var(--shadow); }
.back-to-top.visible { display: grid; }

@media (max-width: 1024px) {
  .game-grid { grid-template-columns: repeat(3, 1fr); }
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
  .main-navigation a { padding-inline: 11px; font-size: 13px; }
}

@media (max-width: 800px) {
  .header-main { min-height: 72px; }
  .custom-logo-link img { max-height: 58px; }
  .text-logo { font-size: 30px; }
  .menu-toggle { display: inline-flex; order: -1; }
  .header-actions .btn { min-height: 38px; padding: 9px 12px; font-size: 12px; }
  .main-navigation { position: fixed; inset: 0 auto 0 0; z-index: 500; width: min(84vw, 330px); padding-top: 25px; overflow-y: auto; transform: translateX(-105%); transition: transform .25s ease; box-shadow: var(--shadow); }
  .main-navigation.is-open { transform: translateX(0); }
  .main-navigation ul { display: block; }
  .main-navigation a { padding: 13px 22px; border-bottom: 1px solid rgba(255,255,255,.14); }
  .main-navigation .sub-menu { position: static; display: block; padding: 0 0 0 16px; background: rgba(0,0,0,.1); box-shadow: none; }
  .main-navigation .sub-menu a { color: #fff; }
  .nav-overlay { position: fixed; inset: 0; z-index: 450; display: none; background: rgba(0,15,45,.58); }
  .nav-overlay.is-open { display: block; }
  .hero { min-height: 390px; }
  .feature-strip { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col:last-child { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .container { width: min(100% - 22px, var(--container)); }
  .site-branding { min-width: 0; }
  .text-logo em { display: none; }
  .header-actions { gap: 5px; }
  .header-actions .btn { padding-inline: 9px; }
  .hero-inner { padding-block: 55px 85px; }
  .hero h1 { font-size: 36px; }
  .category-section { margin-top: -52px; }
  .game-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .game-card { min-height: 166px; }
  .game-icon { width: 68px; height: 68px; font-size: 34px; }
  .posts-grid, .feature-strip, .footer-grid, .footer-about { grid-template-columns: 1fr; }
  .footer-about { justify-items: center; }
  .footer-col:last-child { grid-column: auto; }
  .intro-card { padding: 20px; }
}