/* ==========================================================================
   8XSMS Sports News — main.css
   Mobile-first · CLS-safe · WCAG AA
   ========================================================================== */

/* --------- Reset --------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; }
img, picture, svg, video { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; }

/* --------- Tokens --------- */
:root {
  --c-bg:         #ffffff;
  --c-surface:    #f7f8fa;
  --c-border:     #e5e7eb;
  --c-text:       #1a1a1a;
  --c-text-soft:  #5a6270;
  --c-muted:      #9098a5;
  --c-primary:    #0f4c81;
  --c-primary-d:  #0a3960;
  --c-accent:     #e63946;
  --c-link:       #0f4c81;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, .08);

  --maxw: 1200px;
  --maxw-narrow: 760px;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'Noto Sans Vietnamese', sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --c-bg:        #0f1419;
    --c-surface:   #171c23;
    --c-border:    #262c36;
    --c-text:      #e6e8ec;
    --c-text-soft: #a3abb8;
    --c-muted:     #6b7280;
    --c-primary:   #4ea1e8;
    --c-primary-d: #6fb4ee;
    --c-link:      #6fb4ee;
  }
}

/* --------- Base --------- */
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.25;
  margin: 0 0 .5em;
  font-weight: 700;
  letter-spacing: -.01em;
}

a { color: var(--c-link); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --------- Accessibility --------- */
.screen-reader-text {
  position: absolute !important;
  width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; top: -40px; left: 8px; z-index: 100;
  background: var(--c-primary); color: #fff; padding: 8px 14px;
  border-radius: var(--radius-sm);
}
.skip-link:focus { top: 8px; }

:focus-visible {
  outline: 3px solid var(--c-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

/* --------- Layout --------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 16px;
}
.container--narrow { max-width: var(--maxw-narrow); }

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-top {
  font-size: 13px;
  color: var(--c-text-soft);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
}
.header-top__inner {
  display: flex; justify-content: space-between; align-items: center;
  height: 36px;
  gap: 16px;
}
.header-top__social {
  display: flex; gap: 12px;
}
.header-top__social a { color: var(--c-text-soft); font-size: 12px; }

.header-main__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 14px 0;
}
.site-branding { grid-column: 1; }
.site-title { font-size: 24px; margin: 0; color: var(--c-primary); }
.site-title a { color: inherit; text-decoration: none; }
.site-description { margin: 0; font-size: 13px; color: var(--c-text-soft); }
.custom-logo { max-height: 50px; width: auto; }

.header-actions {
  grid-column: 3;
  display: flex; align-items: center; gap: 10px;
}

.header-search {
  display: flex; align-items: center;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  padding: 4px 4px 4px 14px;
  transition: border-color .2s;
}
.header-search:focus-within { border-color: var(--c-primary); }
.header-search input {
  border: 0; background: transparent; outline: 0;
  width: 200px; padding: 6px 4px; font-size: 14px;
}
.header-search button {
  width: 32px; height: 32px; border: 0; border-radius: 999px;
  background: var(--c-primary); color: #fff; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
}

/* CTA (góc trên phải — admin chỉnh sửa được) */
.header-cta {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 9px 18px;
  background: var(--c-primary);
  color: #fff !important;
  font-size: 14px; font-weight: 600;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: background .2s, transform .15s;
  text-decoration: none !important;
}
.header-cta:hover { background: var(--c-primary-d); transform: translateY(-1px); }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  background: transparent; border: 0; cursor: pointer;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px;
}
.nav-toggle span {
  width: 22px; height: 2px; background: var(--c-text); border-radius: 2px;
  transition: transform .2s, opacity .2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav {
  background: var(--c-bg);
  border-top: 1px solid var(--c-border);
}
.primary-menu {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 2px;
}
.primary-menu li { position: relative; }
.primary-menu a {
  display: block;
  padding: 12px 16px;
  font-size: 14px; font-weight: 600;
  color: var(--c-text);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.primary-menu a:hover,
.primary-menu .current-menu-item > a {
  color: var(--c-primary);
  border-bottom-color: var(--c-primary);
}
.primary-menu .sub-menu {
  display: none;
  position: absolute; top: 100%; left: 0;
  background: var(--c-bg); border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  min-width: 200px;
  list-style: none; margin: 0; padding: 6px 0;
  box-shadow: var(--shadow-md);
  z-index: 10;
}
.primary-menu .has-children:hover > .sub-menu,
.primary-menu .has-children:focus-within > .sub-menu {
  display: block;
}
.primary-menu .sub-menu a { padding: 8px 16px; border-bottom: 0; }
.caret { font-size: 11px; margin-left: 2px; }

/* Breadcrumbs */
.breadcrumbs {
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  font-size: 13px;
}
.breadcrumbs ol {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 10px 16px;
  list-style: none;
  display: flex; flex-wrap: wrap; gap: 6px;
  color: var(--c-text-soft);
}
.breadcrumbs li:not(:last-child)::after {
  content: "/"; color: var(--c-muted); margin-left: 6px;
}
.breadcrumbs a { color: var(--c-text-soft); }
.breadcrumbs [aria-current] { color: var(--c-text); font-weight: 600; }

/* ==========================================================================
   HOMEPAGE — HERO
   ========================================================================== */
.hero-section { padding: 24px 0; }
.hero-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}
.hero-side {
  display: grid;
  grid-template-rows: repeat(4, 1fr);
  gap: 12px;
}
.hero-card { background: var(--c-surface); border-radius: var(--radius-md); overflow: hidden; }
.hero-card__link { display: block; color: inherit; text-decoration: none; height: 100%; }
.hero-card__link:hover .hero-card__title { color: var(--c-primary); }

.hero-card--main .hero-card__media { aspect-ratio: 16/9; overflow: hidden; }
.hero-card--main .hero-card__media img { width: 100%; height: 100%; object-fit: cover; }
.hero-card--main .hero-card__body { padding: 18px 20px 22px; }
.hero-card__title { font-size: 22px; margin: 8px 0 6px; transition: color .15s; }
.hero-card__excerpt { color: var(--c-text-soft); font-size: 14px; margin: 0 0 10px; }
.hero-card__meta { font-size: 12px; color: var(--c-muted); }

.hero-card--side { display: flex; gap: 10px; padding: 10px; align-items: center; }
.hero-card--side .hero-card__media--small {
  flex: 0 0 110px; aspect-ratio: 16/10; border-radius: var(--radius-sm); overflow: hidden;
}
.hero-card--side .hero-card__media--small img { width: 100%; height: 100%; object-fit: cover; }
.hero-card__body { min-width: 0; }
.hero-card__title--sm { font-size: 14px; margin: 4px 0 4px; line-height: 1.35;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.hero-card__time { font-size: 11px; color: var(--c-muted); }

.chip {
  display: inline-block;
  padding: 3px 10px;
  font-size: 11px; font-weight: 700;
  letter-spacing: .04em; text-transform: uppercase;
  color: var(--c-primary); background: rgba(15, 76, 129, .08);
  border-radius: 999px;
}
.chip--sm { padding: 2px 8px; font-size: 10px; }
@media (prefers-color-scheme: dark) {
  .chip { background: rgba(78, 161, 232, .15); }
}

/* ==========================================================================
   HOMEPAGE — LEAGUE SECTIONS
   ========================================================================== */
.league-section { padding: 32px 0; border-top: 1px solid var(--c-border); }
.league-section:first-of-type { border-top: 0; }

.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--c-primary);
}
.section-header__title {
  margin: 0; font-size: 22px; color: var(--c-text);
}
.section-header__title a { color: inherit; text-decoration: none; }
.section-header__title a:hover { color: var(--c-primary); }
.section-header__more { font-size: 13px; font-weight: 600; color: var(--c-primary); }

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.post-grid--archive { margin-bottom: 32px; }

.post-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.post-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-primary);
}
.post-card__link { display: block; color: inherit; text-decoration: none; height: 100%; }
.post-card__media { aspect-ratio: 16/10; overflow: hidden; background: var(--c-surface); }
.post-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.post-card:hover .post-card__media img { transform: scale(1.04); }
.post-card__body { padding: 14px 16px 18px; }
.post-card__title {
  font-size: 16px; line-height: 1.35; margin: 6px 0 8px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.post-card__excerpt {
  font-size: 13px; color: var(--c-text-soft); margin: 0 0 10px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.post-card__meta { font-size: 12px; color: var(--c-muted); }

/* Tag cloud */
.tags-section { padding: 24px 0 40px; border-top: 1px solid var(--c-border); }
.tag-cloud {
  list-style: none; margin: 16px 0 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 8px;
}
.tag-cloud a {
  display: inline-block; padding: 6px 12px;
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: 999px;
  font-size: 13px; color: var(--c-text-soft);
  text-decoration: none;
}
.tag-cloud a:hover { border-color: var(--c-primary); color: var(--c-primary); }

/* ==========================================================================
   SINGLE POST
   ========================================================================== */
.site-main { padding: 24px 0 60px; }

.entry-header { margin: 12px 0 20px; }
.entry-cats { margin-bottom: 14px; display: flex; gap: 6px; flex-wrap: wrap; }
.entry-title { font-size: 32px; line-height: 1.2; margin: 0 0 12px; letter-spacing: -.015em; }
.entry-lead { font-size: 18px; color: var(--c-text-soft); margin: 0 0 16px; line-height: 1.55; }

.entry-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px;
  font-size: 13px; color: var(--c-text-soft);
  padding: 12px 0; border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border);
}
.entry-meta__author { display: inline-flex; align-items: center; gap: 8px; }
.entry-meta__author img { width: 28px; height: 28px; border-radius: 50%; }
.entry-meta__author a { color: var(--c-text); font-weight: 600; }
.entry-meta__sep { color: var(--c-muted); }
.entry-meta__updated { color: var(--c-accent); font-weight: 600; }

.entry-thumbnail { margin: 20px 0 24px; }
.entry-thumbnail img { width: 100%; border-radius: var(--radius-md); }
.entry-thumbnail figcaption {
  font-size: 13px; color: var(--c-muted); padding: 8px 4px 0; font-style: italic;
}

.entry-content {
  font-size: 17px; line-height: 1.8;
  color: var(--c-text);
}
.entry-content > * + * { margin-top: 1em; }
.entry-content h2 { font-size: 26px; margin: 1.6em 0 .6em; padding-bottom: 6px; border-bottom: 1px solid var(--c-border); }
.entry-content h3 { font-size: 21px; margin: 1.4em 0 .5em; }
.entry-content h4 { font-size: 18px; margin: 1.2em 0 .4em; }
.entry-content p { margin: 1em 0; }
.entry-content img { border-radius: var(--radius-sm); margin: 1.2em auto; }
.entry-content figure { margin: 1.4em 0; }
.entry-content figcaption { font-size: 13px; color: var(--c-muted); text-align: center; padding-top: 6px; }
.entry-content blockquote {
  margin: 1.5em 0; padding: 14px 20px;
  border-left: 4px solid var(--c-primary);
  background: var(--c-surface); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic; color: var(--c-text-soft);
}
.entry-content ul, .entry-content ol { padding-left: 1.5em; }
.entry-content li { margin: .4em 0; }
.entry-content a { color: var(--c-link); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.entry-content code {
  padding: 2px 6px; background: var(--c-surface); border-radius: 4px; font-size: .9em;
}
.entry-content pre {
  padding: 14px 16px; background: var(--c-surface); border-radius: var(--radius-sm); overflow-x: auto;
}
.entry-content table {
  width: 100%; border-collapse: collapse; margin: 1.2em 0;
}
.entry-content th, .entry-content td {
  padding: 10px 12px; border: 1px solid var(--c-border); text-align: left;
}
.entry-content th { background: var(--c-surface); font-weight: 700; }

.entry-footer { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--c-border); }
.entry-tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 14px; color: var(--c-text-soft); }
.entry-tags a {
  padding: 4px 10px; background: var(--c-surface); border-radius: 999px; font-size: 13px;
  color: var(--c-text-soft); text-decoration: none;
}
.entry-tags a:hover { color: var(--c-primary); }

/* Author box (E-E-A-T) */
.author-box {
  margin: 32px 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 20px;
  background: var(--c-surface);
  border-radius: var(--radius-md);
}
.author-box__avatar img { border-radius: 50%; }
.author-box__name { margin: 0 0 8px; font-size: 18px; }
.author-box__name a { color: var(--c-text); text-decoration: none; }
.author-box__bio { margin: 0 0 8px; color: var(--c-text-soft); font-size: 14px; }

/* Related posts */
.related-posts { margin: 40px 0 24px; padding-top: 24px; border-top: 1px solid var(--c-border); }
.related-posts .post-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

/* Post pagination */
.post-pagination {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  margin: 32px 0;
}
.post-pagination a {
  padding: 14px 18px; border: 1px solid var(--c-border); border-radius: var(--radius-sm);
  text-decoration: none; color: var(--c-text);
  transition: border-color .15s, transform .15s;
}
.post-pagination a:hover { border-color: var(--c-primary); transform: translateY(-1px); }
.post-pagination__next { text-align: right; }
.post-pagination__label { display: block; font-size: 12px; color: var(--c-muted); margin-bottom: 4px; }
.post-pagination__title { font-weight: 600; font-size: 14px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ==========================================================================
   ARCHIVE / SEARCH / 404
   ========================================================================== */
.archive-header {
  padding: 20px 0 24px;
  border-bottom: 2px solid var(--c-primary);
  margin-bottom: 24px;
}
.archive-header__title { font-size: 28px; margin: 0; }
.archive-header__desc { margin-top: 8px; color: var(--c-text-soft); }

.pagination {
  display: flex; flex-wrap: wrap; gap: 6px; justify-content: center;
  margin: 32px 0;
}
.pagination .page-numbers {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 12px;
  border: 1px solid var(--c-border); border-radius: var(--radius-sm);
  font-weight: 600; text-decoration: none; color: var(--c-text);
}
.pagination .page-numbers.current {
  background: var(--c-primary); border-color: var(--c-primary); color: #fff;
}
.pagination .page-numbers:hover:not(.current) { border-color: var(--c-primary); color: var(--c-primary); }

.empty-state {
  padding: 40px 20px; text-align: center; color: var(--c-text-soft);
  background: var(--c-surface); border-radius: var(--radius-md);
}

.error-404 { text-align: center; padding: 60px 0; }
.error-404__code { font-size: 96px; margin: 0; color: var(--c-primary); line-height: 1; }
.error-404__title { font-size: 24px; margin: 12px 0 20px; }
.btn-primary {
  display: inline-block; padding: 12px 24px;
  background: var(--c-primary); color: #fff !important;
  border-radius: var(--radius-sm); text-decoration: none; font-weight: 600;
}
.btn-primary:hover { background: var(--c-primary-d); text-decoration: none; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer-ad {
  padding: 16px 0;
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  text-align: center;
}
.footer-ad img { margin: 0 auto; border-radius: var(--radius-sm); max-height: 120px; }

.site-footer {
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  padding: 40px 0 20px;
  font-size: 14px;
  color: var(--c-text-soft);
}
.footer-widgets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  margin-bottom: 28px;
}
.footer-col .widget-title {
  font-size: 14px; text-transform: uppercase; letter-spacing: .06em;
  margin: 0 0 12px; color: var(--c-text);
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { padding: 4px 0; }
.footer-col a { color: var(--c-text-soft); text-decoration: none; }
.footer-col a:hover { color: var(--c-primary); }

.footer-social {
  padding: 16px 0; border-top: 1px solid var(--c-border);
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.footer-social__title { margin: 0; font-size: 14px; }
.footer-social ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 12px; }
.footer-social a { color: var(--c-text-soft); }

.footer-nav { padding: 12px 0; border-top: 1px solid var(--c-border); }
.footer-menu { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 16px; }
.footer-menu a { color: var(--c-text-soft); text-decoration: none; font-size: 13px; }
.footer-menu a:hover { color: var(--c-primary); }

.site-info {
  padding-top: 16px; border-top: 1px solid var(--c-border);
  font-size: 13px; color: var(--c-muted);
}
.site-info p { margin: 4px 0; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-side { grid-template-rows: auto; grid-template-columns: 1fr 1fr; }
  .author-box { grid-template-columns: 1fr; text-align: center; }
  .author-box__avatar img { margin: 0 auto; }
  .post-pagination { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .header-main__inner { grid-template-columns: 1fr auto; padding: 10px 0; }
  .site-branding { grid-column: 1; }
  .header-actions { grid-column: 2; gap: 6px; }
  .header-search { display: none; }
  .nav-toggle { display: flex; }
  .site-nav { display: none; }
  .site-nav.is-open { display: block; }
  .primary-menu { flex-direction: column; gap: 0; padding: 8px 0; }
  .primary-menu a { padding: 12px 16px; border-bottom: 1px solid var(--c-border); }
  .primary-menu .sub-menu {
    position: static; display: block;
    border: 0; box-shadow: none; padding: 0; background: var(--c-surface);
  }
  .hero-side { grid-template-columns: 1fr; }
  .entry-title { font-size: 24px; }
  .entry-content { font-size: 16px; line-height: 1.7; }
  .header-top__date { display: none; }
}

@media (max-width: 480px) {
  .section-header__title { font-size: 18px; }
  .hero-card__title { font-size: 18px; }
  .post-grid { grid-template-columns: 1fr; }
  .header-cta { padding: 8px 12px; font-size: 13px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Print */
@media print {
  .site-header, .site-footer, .footer-ad, .related-posts, .post-pagination,
  .header-cta, .nav-toggle, .site-nav, .breadcrumbs { display: none !important; }
  body { color: #000; background: #fff; }
  .entry-content { font-size: 12pt; }
}