/*
Theme Name: Marmedia PBN
Theme URI: https://marmedia.vn
Author: Marmedia
Description: Theme WordPress cho site PBN chủ đề truyền thông / media — giao diện blog pastel gradient tím–hồng, chữ navy đậm, thẻ bài viết bo góc, khối "đáng chú ý" nền tối. Thông số site (tên, màu, chuyên mục, liên hệ...) chỉnh trong theme-config.php.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: marmedia
*/

/* ==========================================================================
   0. Design tokens
   --brand/--brand-2/--accent/--navy được theme-config.php > colors ghi đè.
   ========================================================================== */
:root {
  --brand: #7c6cf0;
  --brand-2: #ff8fcf;
  --accent: #ffc48a;
  --navy: #26265a;

  --ink: var(--navy);
  --muted: #8a8ab0;
  --soft: #f6f5ff;
  --line: #e4e3f5;
  --paper: #ffffff;
  --on-navy: #f2f1ff;

  --grad-hero: radial-gradient(60% 80% at 20% 0%, #ffe9c9 0%, rgba(255,233,201,0) 60%),
               radial-gradient(60% 70% at 85% 5%, #ffd0ec 0%, rgba(255,208,236,0) 60%),
               radial-gradient(70% 90% at 50% 0%, #e2dcff 0%, rgba(226,220,255,0) 70%);
  --grad-brand: linear-gradient(135deg, var(--accent), var(--brand-2) 55%, #c9a7ff);
  --radius: 6px;
  --radius-lg: 14px;
  --container: 1120px;
  --font: 'Be Vietnam Pro', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
}

/* ==========================================================================
   1. Base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0; letter-spacing: -.01em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
button, input, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }

.container { width: min(var(--container), 100% - 48px); margin-inline: auto; }
.container-narrow { width: min(720px, 100% - 48px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.hp { position: absolute !important; left: -9999px; opacity: 0; height: 0; width: 0; }

.section { padding: 64px 0; }
.section.tight { padding: 28px 0; }
.section-title { font-size: 28px; font-weight: 800; margin-bottom: 28px; }

/* ==========================================================================
   2. Buttons, pills, forms
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: var(--radius); border: 1.5px solid transparent;
  font-weight: 600; font-size: 15px; cursor: pointer; transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 22px rgba(38, 38, 90, .25); }
.btn-outline { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-sm { padding: 9px 20px; font-size: 14px; }

.pill {
  --cat: var(--brand);
  display: inline-block; padding: 3px 10px; border-radius: 4px;
  font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--cat);
  background: color-mix(in srgb, var(--cat) 14%, #fff);
  transition: background .15s ease;
}
a.pill:hover { background: color-mix(in srgb, var(--cat) 24%, #fff); }
.pill-light { background: rgba(255,255,255,.16); color: #d9d4ff; }

.chip {
  display: inline-block; padding: 7px 16px; border-radius: 999px; font-size: 14px; font-weight: 600;
  border: 1.5px solid var(--line); color: var(--ink); background: #fff; transition: .15s ease;
}
.chip:hover { border-color: var(--brand); color: var(--brand); }
.chip.active { background: var(--navy); border-color: var(--navy); color: #fff; }
.filter-pills { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 40px; }

.newsletter-form {
  display: flex; gap: 0; width: min(480px, 100%); margin: 28px auto 0;
  background: #fff; border: 1.5px solid var(--line); border-radius: var(--radius); padding: 4px;
  box-shadow: 0 8px 28px rgba(124, 108, 240, .12);
}
.newsletter-form input[type="email"], .newsletter-form input[type="search"] {
  flex: 1; min-width: 0; border: 0; background: transparent; padding: 10px 14px; outline: none; font-size: 15px;
}
.newsletter-form .btn { border-radius: 4px; padding: 10px 24px; }
.form-note { margin-top: 14px; font-size: 14px; font-weight: 600; text-align: center; }
.form-note.ok { color: #1f8f5f; }
.form-note.err { color: #cc3a4a; }

/* ==========================================================================
   3. Header
   ========================================================================== */
.site-header { position: sticky; top: 0; z-index: 50; background: transparent; border-bottom: 1px solid transparent; transition: border-color .2s, background .2s; }
.site-header.scrolled { border-bottom-color: var(--line); background: rgba(255,255,255,.94); }
.nav { display: flex; align-items: center; gap: 32px; height: 76px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; letter-spacing: -.02em; }
.brand b { font-weight: 800; }
.brand-mark { display: inline-flex; color: var(--navy); }
.brand-mark img { height: 36px; width: auto; max-height: 36px; display: block; }
.nav-links { display: flex; align-items: center; gap: 28px; margin-left: auto; margin-right: auto; }
.nav-links .menu { display: flex; align-items: center; gap: 30px; }
.nav-links .menu > li { position: relative; }
.nav-links .menu > li > a { display: block; padding: 8px 0; font-size: 15px; font-weight: 500; position: relative; }
.nav-links .menu > li > a::after { content: ''; position: absolute; left: 0; right: 0; bottom: 2px; height: 2px; background: var(--navy); transform: scaleX(0); transform-origin: left; transition: transform .2s ease; }
.nav-links .menu > li:hover > a::after, .nav-links .menu > li.active > a::after { transform: scaleX(1); }
.nav-links .sub-menu {
  position: absolute; top: 100%; left: -16px; min-width: 220px; padding: 10px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: 0 18px 40px rgba(38, 38, 90, .14);
  opacity: 0; visibility: hidden; transform: translateY(8px); transition: .18s ease;
}
.nav-links .menu-item-has-children:hover > .sub-menu,
.nav-links .menu-item-has-children:focus-within > .sub-menu,
.nav-links .menu-item-has-children.open > .sub-menu { opacity: 1; visibility: visible; transform: none; }
.nav-links .menu-item-has-children > a[href="#"] { cursor: default; }
.nav-links .sub-menu a { display: block; padding: 9px 12px; border-radius: 8px; font-size: 14px; font-weight: 500; }
.nav-links .sub-menu a:hover { background: var(--soft); color: var(--brand); }

.nav-search { display: flex; align-items: center; background: var(--soft); border-radius: 999px; padding: 0 4px 0 14px; }
.nav-search input { border: 0; background: transparent; outline: none; width: 130px; padding: 8px 0; font-size: 14px; }
.nav-search button { border: 0; background: transparent; cursor: pointer; padding: 8px; color: var(--muted); display: inline-flex; }
.nav-search button:hover { color: var(--navy); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.menu-btn { display: none; background: transparent; border: 0; cursor: pointer; padding: 6px; color: var(--navy); }

/* ==========================================================================
   4. Hero
   ========================================================================== */
.hero { margin-top: -76px; padding: 190px 0 70px; text-align: center; background: var(--grad-hero); }
.hero h1 { font-size: clamp(40px, 6vw, 64px); font-weight: 800; letter-spacing: -.03em; }
.hero p { max-width: 560px; margin: 18px auto 0; color: #5a5a8a; font-size: 16px; }
.hero-visual { padding: 170px 0 clamp(240px, 32vw, 460px);
  background:
    linear-gradient(180deg, rgba(255,255,255,.9) 0%, rgba(255,255,255,.78) 42%, rgba(255,255,255,0) 78%),
    url(assets/images/hero.jpg) center bottom / cover no-repeat,
    var(--grad-hero); }
.hero-visual h1, .hero-visual p { position: relative; }
.category-bao-chi .hero-blog { --veil: .66; --veil-end: 88%; }
.category-streaming .hero-blog { --veil: .42; --veil-end: 72%; }
.category-podcast .hero-blog h1 { color: #fff; text-shadow: 0 2px 18px rgba(20,24,90,.55); }
.hero-blog h1, .hero-blog p { position: relative; text-shadow: 0 0 14px rgba(255,255,255,.95), 0 0 28px rgba(255,255,255,.8); }
.hero-blog p { color: var(--navy); display: inline-block; padding: 6px 18px; border-radius: 999px; background: rgba(255,255,255,.72); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); text-shadow: none; }
.hero-small { padding: 150px 0 40px; }
.hero-blog { padding: 150px 0 clamp(150px, 20vw, 280px);
  background:
    linear-gradient(180deg, rgba(255,255,255,.75) 0%, rgba(255,255,255,var(--veil, .3)) 24%, rgba(255,255,255,0) var(--veil-end, 55%)),
    var(--hero-img, url(assets/images/hero-blog.jpg)) center 70% / cover no-repeat,
    var(--grad-hero); }
.hero-small h1 { font-size: clamp(32px, 4.6vw, 48px); }
.hero-small .newsletter-form { margin-top: 22px; }

/* ==========================================================================
   5. Post cards & grid
   ========================================================================== */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px 24px; }
.post-card { display: flex; flex-direction: column; gap: 14px; }
.post-image { display: block; overflow: hidden; border-radius: var(--radius); background: var(--soft); aspect-ratio: 4 / 3; }
.post-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.post-card:hover .post-image img { transform: scale(1.04); }
.post-body { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.post-card-title { font-size: 16px; font-weight: 700; line-height: 1.4; }
.post-card-title a:hover { color: var(--brand); }
.meta { font-size: 12px; color: var(--muted); }

/* Thẻ quảng bá gradient trong lưới */
.promo-card {
  display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; gap: 14px;
  padding: 32px 24px; border-radius: var(--radius); background: var(--grad-brand); min-height: 280px;
}
.promo-card h3 { font-size: 24px; font-weight: 800; }
.promo-card p { font-size: 14px; color: rgba(38,38,90,.8); }

/* ==========================================================================
   6. Feature (ảnh lớn + tiêu đề)
   ========================================================================== */
.feature { display: grid; grid-template-columns: 1.55fr 1fr; gap: 40px; align-items: center; }
.feature.reverse { grid-template-columns: 1fr 1.55fr; }
.feature.reverse .feature-image { order: 2; }
.feature-image { display: block; border-radius: var(--radius); overflow: hidden; aspect-ratio: 3 / 2.1; background: var(--soft); }
.feature-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.feature:hover .feature-image img { transform: scale(1.03); }
.feature-body { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; }
.feature-title { font-size: clamp(24px, 3vw, 34px); font-weight: 800; line-height: 1.2; }
.feature-title a:hover { color: var(--brand); }
.feature-excerpt { color: #5f5f8c; font-size: 15px; line-height: 1.7; }

.author-chip { display: flex; align-items: center; gap: 12px; margin-top: 4px; }
.author-chip img { border-radius: 50%; object-fit: cover; width: 40px; height: 40px; background: var(--soft); }
.author-chip span { display: flex; flex-direction: column; line-height: 1.35; }
.author-chip b { font-size: 14px; font-weight: 700; }
.author-chip small { font-size: 12px; color: var(--muted); }
.author-chip.on-dark small { color: #a9a6d8; }
.author-chip.center { justify-content: center; }

/* ==========================================================================
   7. Spotlight (khối nền tối)
   ========================================================================== */
.spotlight {
  display: grid; grid-template-columns: 1.7fr 1fr; gap: 48px; padding: 44px;
  background: var(--navy); color: var(--on-navy); border-radius: var(--radius);
}
.spotlight-main { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.spotlight-main h2 { font-size: clamp(22px, 2.6vw, 28px); font-weight: 800; }
.spotlight-main h2 a:hover { color: var(--accent); }
.spotlight-image { display: block; width: 100%; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16 / 9; }
.spotlight-image img { width: 100%; height: 100%; object-fit: cover; }
.spotlight-side h3 { font-size: 16px; font-weight: 700; color: #b9b2ff; margin-bottom: 20px; }
.spotlight-side li { padding: 16px 0; border-top: 1px solid rgba(255,255,255,.12); }
.spotlight-side li:first-child { border-top: 0; padding-top: 0; }
.spotlight-side a { display: block; font-weight: 700; font-size: 15px; line-height: 1.4; }
.spotlight-side a:hover { color: var(--accent); }
.spotlight-side small { display: block; margin-top: 6px; font-size: 12px; color: #a9a6d8; }

.center-cta { display: flex; justify-content: center; padding: 28px 0 8px; }

/* ==========================================================================
   8. Newsletter banner
   ========================================================================== */
.newsletter-banner { padding: 56px 0 72px; }
.newsletter-banner-inner {
  padding: 56px 24px; text-align: center; border-radius: var(--radius);
  background: linear-gradient(120deg, #ffd7b5, #ffb3dd 50%, #d9b6ff);
}
.newsletter-banner h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; }
.newsletter-banner p { margin-top: 10px; font-size: 15px; color: rgba(38,38,90,.8); }
.newsletter-banner .newsletter-form { box-shadow: none; border-color: rgba(255,255,255,.7); }

/* ==========================================================================
   9. Bài viết chi tiết & trang tĩnh
   ========================================================================== */
.article-head { padding: 56px 0 28px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 18px; }
.article-head h1 { font-size: clamp(30px, 4.4vw, 46px); font-weight: 800; letter-spacing: -.025em; }
.article-head .lead { font-size: 18px; color: #5f5f8c; max-width: 620px; }
.breadcrumb { font-size: 13px; color: var(--muted); display: flex; gap: 8px; }
.breadcrumb a:hover { color: var(--brand); }
.article-cover { margin-top: 12px; }
.article-cover img { width: 100%; max-height: 560px; object-fit: cover; border-radius: var(--radius-lg); }

.article-content { padding: 48px 0 24px; font-size: 17px; line-height: 1.85; color: #34345f; }
.article-content > * + * { margin-top: 1.2em; }
.article-content h2 { font-size: 28px; font-weight: 800; margin-top: 1.8em; color: var(--ink); }
.article-content h3 { font-size: 22px; font-weight: 700; margin-top: 1.5em; color: var(--ink); }
.article-content a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; }
.article-content ul, .article-content ol { padding-left: 1.4em; }
.article-content ul { list-style: disc; }
.article-content li + li { margin-top: .4em; }
.article-content blockquote {
  margin-inline: 0; padding: 20px 26px; border-left: 4px solid var(--brand-2);
  background: var(--soft); border-radius: 0 var(--radius) var(--radius) 0; font-size: 19px; font-weight: 600; color: var(--ink);
}
.article-content blockquote p { margin: 0; }
.article-content img { border-radius: var(--radius); }
.article-content figcaption { font-size: 13px; color: var(--muted); text-align: center; margin-top: 8px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-list a { text-decoration: none !important; font-size: 13px; padding: 4px 12px; border-radius: 999px; background: var(--soft); color: var(--brand); }

.author-box { display: flex; gap: 18px; align-items: flex-start; padding: 24px; margin: 24px 0 8px; background: var(--soft); border-radius: var(--radius-lg); }
.author-box img { border-radius: 50%; object-fit: cover; flex: none; width: 70px; height: 70px; }
.author-box small { display: block; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.author-box b { display: block; font-size: 17px; margin-top: 2px; }
.author-box b span { font-weight: 500; color: var(--muted); font-size: 14px; }
.author-box p { margin-top: 8px; font-size: 14px; color: #5f5f8c; }

/* ==========================================================================
   10. Liên hệ, 404, trạng thái rỗng, phân trang
   ========================================================================== */
.contact-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: start; }
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.contact-form label { display: flex; flex-direction: column; gap: 8px; font-size: 14px; font-weight: 600; }
.contact-form input, .contact-form textarea {
  border: 1.5px solid var(--line); border-radius: var(--radius); padding: 12px 14px; font-weight: 400; outline: none; background: #fff; transition: border-color .15s;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--brand); }
.contact-form .btn { align-self: flex-start; }
.contact-info { padding: 32px; background: var(--soft); border-radius: var(--radius-lg); display: flex; flex-direction: column; gap: 16px; }
.contact-info h3 { font-size: 20px; font-weight: 800; }
.contact-info p { display: flex; gap: 12px; font-size: 15px; color: #4b4b7a; }
.contact-info .mm-icon { flex: none; margin-top: 3px; color: var(--brand); }

.notfound { min-height: 70vh; display: grid; place-items: center; text-align: center; background: var(--grad-hero); margin-top: -76px; padding-top: 76px; }
.notfound .container { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.notfound-code { font-size: 96px; font-weight: 800; line-height: 1; background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.notfound h1 { font-size: 32px; font-weight: 800; }
.notfound p { color: #5a5a8a; max-width: 420px; }

.empty-state { text-align: center; padding: 64px 0; display: flex; flex-direction: column; align-items: center; gap: 20px; color: var(--muted); }

.navigation.pagination { margin-top: 56px; }
.nav-links-pagination, .pagination .nav-links { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; margin: 0; }
.pagination .page-numbers {
  min-width: 42px; height: 42px; padding: 0 14px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius); border: 1.5px solid var(--line); font-weight: 600; font-size: 14px; transition: .15s ease;
}
.pagination a.page-numbers:hover { border-color: var(--brand); color: var(--brand); }
.pagination .page-numbers.current { background: var(--navy); border-color: var(--navy); color: #fff; }
.pagination .dots { border: 0; }

/* ==========================================================================
   11. Footer
   ========================================================================== */
.footer { background: var(--soft); padding: 64px 0 28px; margin-top: 0; font-size: 14px; color: #5a5a8a; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr 1fr; gap: 40px; }
.footer-about p { margin-top: 16px; max-width: 300px; line-height: 1.7; }
.footer h4 { font-size: 13px; font-weight: 800; color: var(--ink); margin-bottom: 16px; letter-spacing: .02em; }
.footer-menu li + li { margin-top: 10px; }
.footer-menu a:hover, .footer-legal a:hover { color: var(--brand); }
.footer-contact li { line-height: 1.6; }
.social-icons { display: flex; gap: 12px; }
.social-icons a { display: inline-flex; width: 36px; height: 36px; align-items: center; justify-content: center; border-radius: 50%; background: #fff; color: var(--navy); transition: .15s ease; }
.social-icons a:hover { background: var(--navy); color: #fff; transform: translateY(-2px); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 12px; }
.footer-legal { display: flex; gap: 20px; }

/* ==========================================================================
   12. Hiệu ứng xuất hiện khi cuộn (chỉ khi JS chạy)
   ========================================================================== */
.js .rv { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; transition-delay: var(--d, 0ms); }
.js .rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .rv { opacity: 1; transform: none; transition: none; }
  * { transition-duration: .01ms !important; }
}

/* ==========================================================================
   13. Responsive
   ========================================================================== */
@media (max-width: 960px) {
  .post-grid { grid-template-columns: repeat(2, 1fr); }
  .feature, .feature.reverse { grid-template-columns: 1fr; gap: 24px; }
  .feature.reverse .feature-image { order: 0; }
  .spotlight { grid-template-columns: 1fr; padding: 28px; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-about { grid-column: 1 / -1; }
  .contact-layout { grid-template-columns: 1fr; }

  .menu-btn { display: inline-flex; }
  .nav-actions .btn { display: none; }
  .nav { gap: 12px; justify-content: space-between; }
  .nav-links {
    position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 8px;
    margin: 0; padding: 16px 24px 24px; background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(38,38,90,.1); display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links .menu { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-links .menu > li > a { padding: 12px 0; }
  .nav-links .menu > li > a::after { display: none; }
  .nav-links .sub-menu { position: static; opacity: 1; visibility: visible; transform: none; border: 0; box-shadow: none; padding: 0 0 6px 14px; display: none; }
  .nav-links .menu-item-has-children.open > .sub-menu { display: block; }
  .nav-search input { width: 100%; }
  .nav-search { flex: 1; }
}
@media (max-width: 600px) {
  .container, .container-narrow { width: calc(100% - 32px); }
  .post-grid { grid-template-columns: 1fr; }
  .hero { padding: 150px 0 50px; }
  .hero-blog { padding: 120px 0 190px; }
  .hero-visual { padding: 130px 0 270px; background-size: auto 100%, cover; background-position: center bottom; }
  .section { padding: 44px 0; }
  .newsletter-form { flex-direction: column; padding: 8px; }
  .newsletter-form .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .article-content { font-size: 16px; }
  .author-box { flex-direction: column; }
}

.article-meta,.feature-meta,.spotlight-meta { margin: 8px 0 0; font-size: 13px; color: var(--muted); }
.article-meta { text-align: center; }
.spotlight-meta { color: #a9a6d8; }