/* ============================================================
   THONGTINAI — style.css
   ============================================================ */

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

:root {
  --font-head: 'Be Vietnam Pro', sans-serif;
  --font-body: 'Inter', 'Be Vietnam Pro', sans-serif;
  --radius: 6px;
  --radius-lg: 10px;
}

[data-theme="dark"] {
  --bg: #0d0f12; --bg2: #13161b; --bg3: #1a1f27; --bg4: #212730;
  --text: #e2e6ed; --text2: #9ba3af; --text3: #5c6370;
  --border: rgba(255,255,255,0.07); --border2: rgba(255,255,255,0.13);
  --accent: #3b82f6; --accent-bg: rgba(59,130,246,0.1);
  --nav-bg: rgba(13,15,18,0.92);
  --hero-overlay: linear-gradient(to top,rgba(13,15,18,0.98) 0%,rgba(13,15,18,0.65) 55%,transparent 100%);
  /* Footer */
  --ft-bg: #080e1c;
  --ft-bottom-bg: #040810;
  --ft-border-top: rgba(59,130,246,.18);
  --ft-bottom-border: rgba(255,255,255,.06);
  --ft-dot-color: rgba(59,130,246,.18);
  --ft-dot-opacity: .55;
  --ft-glow1: rgba(37,99,235,.22);
  --ft-glow2: rgba(99,102,241,.16);
  --ft-divider: rgba(255,255,255,.08);
  --ft-badge-color: #60a5fa;
  --ft-badge-bg: rgba(59,130,246,.12);
  --ft-badge-border: rgba(59,130,246,.22);
  --ft-title: #f1f5f9;
  --ft-desc: rgba(255,255,255,.45);
  --ft-inp-bg: rgba(255,255,255,.04);
  --ft-inp-border: rgba(59,130,246,.3);
  --ft-inp-color: #f1f5f9;
  --ft-inp-placeholder: rgba(255,255,255,.28);
  --ft-note: rgba(255,255,255,.28);
  --ft-soc-bg: rgba(255,255,255,.04);
  --ft-soc-border: rgba(255,255,255,.07);
  --ft-soc-bg-hover: rgba(255,255,255,.09);
  --ft-soc-border-hover: rgba(255,255,255,.14);
  --ft-soc-name: #e2e8f0;
  --ft-soc-handle: rgba(255,255,255,.35);
  --ft-soc-arrow: rgba(255,255,255,.3);
  --ft-link: rgba(255,255,255,.3);
  --ft-link-hover: rgba(255,255,255,.7);
  --ft-copy: rgba(255,255,255,.25);
  --ft-logo: rgba(255,255,255,.75);
}
[data-theme="light"] {
  --bg: #f5f6f8; --bg2: #ffffff; --bg3: #f0f2f5; --bg4: #e5e8ee;
  --text: #0d1017; --text2: #4b5563; --text3: #9ca3af;
  --border: rgba(0,0,0,0.07); --border2: rgba(0,0,0,0.13);
  --accent: #2563eb; --accent-bg: rgba(37,99,235,0.08);
  --nav-bg: rgba(245,246,248,0.93);
  --hero-overlay: linear-gradient(to top,rgba(10,12,18,0.96) 0%,rgba(10,12,18,0.55) 55%,transparent 100%);
  /* Footer */
  --ft-bg: #f0f4ff;
  --ft-bottom-bg: #ffffff;
  --ft-border-top: rgba(37,99,235,.12);
  --ft-bottom-border: rgba(0,0,0,.07);
  --ft-dot-color: rgba(37,99,235,.12);
  --ft-dot-opacity: .6;
  --ft-glow1: rgba(37,99,235,.07);
  --ft-glow2: rgba(99,102,241,.05);
  --ft-divider: rgba(0,0,0,.08);
  --ft-badge-color: #2563eb;
  --ft-badge-bg: rgba(37,99,235,.08);
  --ft-badge-border: rgba(37,99,235,.18);
  --ft-title: #0d1017;
  --ft-desc: #6b7280;
  --ft-inp-bg: #ffffff;
  --ft-inp-border: rgba(37,99,235,.25);
  --ft-inp-color: #0d1017;
  --ft-inp-placeholder: #9ca3af;
  --ft-note: #9ca3af;
  --ft-soc-bg: #ffffff;
  --ft-soc-border: rgba(0,0,0,.08);
  --ft-soc-bg-hover: #f0f4ff;
  --ft-soc-border-hover: rgba(37,99,235,.2);
  --ft-soc-name: #1e293b;
  --ft-soc-handle: #6b7280;
  --ft-soc-arrow: #9ca3af;
  --ft-link: #6b7280;
  --ft-link-hover: #0d1017;
  --ft-copy: #9ca3af;
  --ft-logo: #0d1017;
}

html { scroll-behavior: smooth; }
body { background:var(--bg); color:var(--text); font-family:var(--font-body); font-size:15px; line-height:1.7; -webkit-font-smoothing:antialiased; transition:background .25s,color .25s; }
a { color:inherit; text-decoration:none; }
img { max-width:100%; height:auto; display:block; }

/* ---- NAV ---- */
nav { position:sticky; top:0; z-index:200; background:var(--nav-bg); backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px); border-bottom:1px solid var(--border); transition:background .25s; }
.nav-inner { max-width:1180px; margin:0 auto; padding:0 24px; height:56px; display:flex; align-items:center; justify-content:space-between; gap:24px; }
.logo { font-family:var(--font-head); font-weight:800; font-size:18px; letter-spacing:-.4px; color:var(--text); display:flex; align-items:center; gap:8px; white-space:nowrap; }
.logo-mark { width:22px; height:22px; background:var(--accent); border-radius:5px; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.nav-links { display:flex; align-items:center; gap:2px; list-style:none; flex:1; }
.nav-links a { font-size:13.5px; font-weight:500; color:var(--text2); padding:5px 12px; border-radius:var(--radius); transition:color .15s,background .15s; white-space:nowrap; }
.nav-links a:hover { color:var(--text); background:var(--bg3); }
.nav-links a.active { color:var(--accent); }
.nav-right { display:flex; align-items:center; gap:8px; }

/* Ẩn nav-links khi chưa scroll (cats-bar đang hiển thị) */
@media(min-width:601px) {
  .nav-links.nav-links--hidden { visibility:hidden; opacity:0; pointer-events:none; }
}
.icon-btn { width:32px; height:32px; border-radius:var(--radius); background:var(--bg3); border:1px solid var(--border); color:var(--text2); cursor:pointer; display:flex; align-items:center; justify-content:center; transition:background .15s,color .15s; position:relative; overflow:hidden; }
.icon-btn:hover { background:var(--bg4); color:var(--text); }
.icon-btn .i-sun,.icon-btn .i-moon { position:absolute; transition:transform .3s,opacity .3s; }
[data-theme="dark"]  .i-sun  { transform:translateY(0);    opacity:1; }
[data-theme="dark"]  .i-moon { transform:translateY(28px);  opacity:0; }
[data-theme="light"] .i-sun  { transform:translateY(-28px); opacity:0; }
[data-theme="light"] .i-moon { transform:translateY(0);     opacity:1; }

/* ---- TICKER ---- */
.ticker { background:var(--accent); height:33px; display:flex; align-items:center; overflow:hidden; }
.ticker-lbl { background:rgba(0,0,0,0.2); color:#fff; font-family:var(--font-head); font-size:10px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; padding:0 14px; height:100%; display:flex; align-items:center; flex-shrink:0; }
.ticker-scroll { overflow:hidden; flex:1; }
.ticker-track { display:flex; white-space:nowrap; animation:tick 36s linear infinite; }
.ticker-item { color:rgba(255,255,255,0.9); font-size:12.5px; font-weight:500; padding:0 28px; display:inline-flex; align-items:center; gap:10px; }
.ticker-item::before { content:''; width:4px; height:4px; background:rgba(255,255,255,0.45); border-radius:50%; flex-shrink:0; }
@keyframes tick { from{transform:translateX(0)} to{transform:translateX(-50%)} }

/* ---- CATS BAR ---- */
.cats-bar { background:var(--bg2); border-bottom:1px solid var(--border); }
.cats-inner { max-width:1180px; margin:0 auto; padding:0 24px; display:flex; overflow-x:auto; scrollbar-width:none; }
.cats-inner::-webkit-scrollbar { display:none; }
.cat { font-size:12px; font-weight:700; letter-spacing:.05em; text-transform:uppercase; color:var(--text3); padding:10px 16px; border-bottom:2px solid transparent; cursor:pointer; white-space:nowrap; transition:color .15s,border-color .15s; }
.cat:hover { color:var(--text2); }
.cat.active { color:var(--accent); border-bottom-color:var(--accent); }

/* ---- MAIN LAYOUT ---- */
.main-wrap { max-width:1180px; margin:0 auto; padding:0 24px; display:grid; grid-template-columns:1fr 300px; gap:0; align-items:start; }
.col-left  { border-right:1px solid var(--border); padding-right:36px; padding-top:32px; }
.col-right { padding-left:28px; padding-top:32px; }

/* ---- FEATURED ---- */
.featured { border-radius:var(--radius-lg); overflow:hidden; position:relative; cursor:pointer; margin-bottom:32px; aspect-ratio:16/8; display:flex; flex-direction:column; justify-content:flex-end; }
.feat-bg { position:absolute; inset:0; background:linear-gradient(135deg,#0a1628 0%,#1a2e52 50%,#0f1e3d 100%); }
.feat-bg::before { content:''; position:absolute; inset:0; background:radial-gradient(ellipse 55% 55% at 75% 35%,rgba(59,130,246,.28) 0%,transparent 60%),radial-gradient(ellipse 35% 40% at 20% 65%,rgba(99,102,241,.18) 0%,transparent 55%); }
.feat-bg-img { position:absolute; inset:0; background-size:cover; background-position:center; }
.feat-overlay { position:absolute; inset:0; background:var(--hero-overlay); }
.feat-body { position:relative; z-index:2; padding:28px 32px; }
.feat-title { font-family:var(--font-head); font-size:25px; font-weight:800; line-height:1.25; letter-spacing:-.4px; color:#fff; margin-bottom:10px; max-width:560px; }
.feat-sub { font-size:13.5px; color:rgba(255,255,255,.62); font-weight:300; line-height:1.65; max-width:500px; margin-bottom:16px; }
.feat-meta { font-size:12px; color:rgba(255,255,255,.42); display:flex; gap:10px; align-items:center; }
.mdot { opacity:.4; }

/* ---- TAGS ---- */
.tag { display:inline-flex; align-self:flex-start; width:fit-content; align-items:center; font-family:var(--font-head); font-size:10px; font-weight:700; letter-spacing:.07em; text-transform:uppercase; padding:3px 8px; border-radius:4px; margin-bottom:6px; }
.tn { background:rgba(239,68,68,.16);   color:#f87171; }
.tp { background:rgba(16,185,129,.16);  color:#34d399; }
.tt { background:rgba(139,92,246,.16);  color:#a78bfa; }
.tr { background:rgba(245,158,11,.16);  color:#fbbf24; }
[data-theme="light"] .tn { background:rgba(220,38,38,.1);  color:#dc2626; }
[data-theme="light"] .tp { background:rgba(5,150,105,.1);  color:#059669; }
[data-theme="light"] .tt { background:rgba(124,58,237,.1); color:#7c3aed; }
[data-theme="light"] .tr { background:rgba(217,119,6,.1);  color:#d97706; }

/* ---- SECTION LABEL ---- */
.slabel { font-family:var(--font-head); font-size:11px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--text3); margin-bottom:16px; display:flex; align-items:center; gap:10px; }
.slabel::after { content:''; flex:1; height:1px; background:var(--border); }

/* ---- STORIES GRID ---- */
.stories { display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--border); border:1px solid var(--border); border-radius:var(--radius-lg); overflow:hidden; margin-bottom:32px; }
.scard { background:var(--bg2); padding:20px; cursor:pointer; transition:background .15s; display:flex; flex-direction:column; gap:8px; }
.scard:hover { background:var(--bg3); }
.scard-thumb { width:100%; aspect-ratio:16/9; border-radius:var(--radius); overflow:hidden; position:relative; margin-bottom:2px; background-size:cover; background-position:center; }
.scard-thumb span { position:absolute; inset:0; display:flex; align-items:center; justify-content:center; font-family:var(--font-head); font-size:26px; font-weight:800; color:rgba(255,255,255,.07); letter-spacing:-2px; }
.scard-title { font-family:var(--font-head); font-size:14.5px; font-weight:700; line-height:1.4; letter-spacing:-.1px; transition:color .15s; }
.scard:hover .scard-title { color:var(--accent); }
.scard-exc { font-size:12.5px; color:var(--text2); line-height:1.6; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.scard-meta { font-size:11.5px; color:var(--text3); display:flex; gap:8px; margin-top:auto; }
.scard .tag { margin-bottom:0; }

/* ---- ARTICLE LIST ---- */
.alist { display:flex; flex-direction:column; }
.arow { display:flex; gap:14px; align-items:center; padding:16px 0; border-bottom:1px solid var(--border); cursor:pointer; }
.arow:last-child { border-bottom:none; }
.arow:hover .atitle { color:var(--accent); }
.athumb { width:100px; height:72px; border-radius:var(--radius); flex-shrink:0; overflow:hidden; background-size:cover; background-position:center; }
.abody { flex:1; min-width:0; }
.ameta { display:flex; align-items:center; gap:6px; margin-bottom:5px; flex-wrap:wrap; }
.ameta .tag { margin-bottom:0; }
.atitle { font-family:var(--font-head); font-size:14px; font-weight:700; line-height:1.4; letter-spacing:-.1px; margin-bottom:4px; transition:color .15s; }
.aexc { font-size:12.5px; color:var(--text2); line-height:1.6; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.ameta2 { display:flex; gap:8px; font-size:11.5px; color:var(--text3); margin-top:7px; }

/* ---- SIDEBAR ---- */
.sb-section { margin-bottom:32px; }
.trending-item { display:flex; gap:13px; align-items:flex-start; padding:13px 0; border-bottom:1px solid var(--border); cursor:pointer; }
.trending-item:last-child { border-bottom:none; }
.tnum { font-family:var(--font-head); font-size:19px; font-weight:800; color:var(--border2); line-height:1; flex-shrink:0; width:26px; transition:color .15s; }
.trending-item:hover .tnum { color:var(--accent); }
.ttitle { font-family:var(--font-head); font-size:13px; font-weight:600; line-height:1.45; transition:color .15s; }
.trending-item:hover .ttitle { color:var(--accent); }
.tmeta { font-size:11px; color:var(--text3); margin-top:3px; }

.prompt-card { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius-lg); padding:15px; margin-bottom:10px; cursor:pointer; transition:border-color .15s,background .15s; }
.prompt-card:hover { border-color:var(--border2); background:var(--bg3); }
.prompt-hd { display:flex; justify-content:space-between; align-items:flex-start; gap:8px; margin-bottom:8px; }
.pname { font-family:var(--font-head); font-size:13px; font-weight:700; line-height:1.4; }
.copy-btn { flex-shrink:0; background:var(--accent-bg); border:none; border-radius:5px; padding:4px 9px; font-size:11px; font-weight:600; color:var(--accent); cursor:pointer; font-family:var(--font-body); transition:background .15s,color .15s; }
.copy-btn:hover { background:var(--accent); color:#fff; }
.pprev { font-family:'Courier New',monospace; font-size:11px; color:var(--text3); background:var(--bg); border:1px solid var(--border); border-radius:5px; padding:8px 10px; line-height:1.6; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }

.tool-row { display:flex; align-items:center; gap:12px; padding:11px 0; border-bottom:1px solid var(--border); cursor:pointer; }
.tool-row:last-child { border-bottom:none; }
.ticon { width:34px; height:34px; border-radius:8px; display:flex; align-items:center; justify-content:center; font-family:var(--font-head); font-size:13px; font-weight:800; flex-shrink:0; }
.tinfo { flex:1; min-width:0; }
.tname { font-family:var(--font-head); font-size:13px; font-weight:700; }
.tdesc { font-size:11.5px; color:var(--text3); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.tbadge { font-size:10px; font-weight:600; padding:2px 7px; border-radius:4px; flex-shrink:0; }
.tb-free { background:rgba(16,185,129,.12);  color:#10b981; }
.tb-paid { background:rgba(239,68,68,.12);   color:#ef4444; }
.tb-fm   { background:rgba(139,92,246,.12);  color:#8b5cf6; }

.nl-box { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius-lg); padding:20px; }
.nl-box h3 { font-family:var(--font-head); font-size:15px; font-weight:800; margin-bottom:6px; letter-spacing:-.2px; }
.nl-box p { font-size:12.5px; color:var(--text2); line-height:1.65; margin-bottom:14px; }
.nl-inp { width:100%; background:var(--bg); border:1px solid var(--border2); border-radius:var(--radius); padding:9px 12px; font-family:var(--font-body); font-size:13px; color:var(--text); outline:none; transition:border-color .15s; margin-bottom:8px; }
.nl-inp:focus { border-color:var(--accent); }
.nl-inp::placeholder { color:var(--text3); }
.nl-btn { width:100%; background:var(--accent); color:#fff; border:none; border-radius:var(--radius); padding:9px; font-family:var(--font-head); font-size:13px; font-weight:700; cursor:pointer; transition:opacity .15s; }
.nl-btn:hover { opacity:.87; }
.more-link { display:block; text-align:center; font-size:12.5px; color:var(--accent); margin-top:10px; }

/* ---- TOPIC SECTION ---- */
.topic-section { border-top:1px solid var(--border); padding:44px 0 8px; }
.topic-section-inner { max-width:1180px; margin:0 auto; padding:0 24px; }
.sec-hd { display:flex; align-items:baseline; justify-content:space-between; margin-bottom:20px; }
.sec-hd .slabel { margin-bottom:0; }
.sec-hd .slabel::after { display:none; }
.topic-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:0; border:1px solid var(--border); border-radius:var(--radius-lg); overflow:hidden; background:var(--border); }
.topic-col { background:var(--bg2); display:flex; flex-direction:column; }
.topic-col-hd { padding:14px 18px 12px; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; }
.topic-col-title { font-family:var(--font-head); font-size:11px; font-weight:800; letter-spacing:.1em; text-transform:uppercase; }
.tc-news   { color:#f87171; }
.tc-prompt { color:#34d399; }
.tc-tool   { color:#a78bfa; }
.tc-tutorial { color:#fbbf24; }
[data-theme="light"] .tc-news    { color:#dc2626; }
[data-theme="light"] .tc-prompt  { color:#059669; }
[data-theme="light"] .tc-tool    { color:#7c3aed; }
[data-theme="light"] .tc-tutorial{ color:#d97706; }
.topic-col-link { font-size:11px; color:var(--text3); transition:color .15s; }
.topic-col-link:hover { color:var(--accent); }
.topic-art { display:flex; flex-direction:column; gap:5px; padding:14px 18px; border-bottom:1px solid var(--border); cursor:pointer; transition:background .15s; }
.topic-art:last-child { border-bottom:none; flex:1; }
.topic-art:hover { background:var(--bg3); }
.topic-art:hover .topic-art-title { color:var(--accent); }
.topic-art .tag { margin-bottom:0; }
.topic-art-title { font-family:var(--font-head); font-size:13px; font-weight:700; line-height:1.4; letter-spacing:-.05px; transition:color .15s; display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }
.topic-art-meta { font-size:11px; color:var(--text3); }

/* ---- EDITORIAL HIGHLIGHT ---- */
.editorial-section { border-top:1px solid var(--border); padding:44px 0; }
.editorial-inner { max-width:1180px; margin:0 auto; padding:0 24px; }
.editorial-hd { display:flex; align-items:center; justify-content:space-between; gap:16px; margin-bottom:22px; padding:14px 20px; background:var(--accent); border-radius:var(--radius-lg); }
.editorial-hd-left { display:flex; flex-direction:column; gap:3px; }
.editorial-hd-title { font-family:var(--font-head); font-size:17px; font-weight:800; color:#fff; letter-spacing:-.3px; line-height:1.2; }
.editorial-hd-sub { font-size:12px; color:rgba(255,255,255,.7); }
.editorial-btn { background:#fff; color:var(--accent); font-family:var(--font-head); font-size:11px; font-weight:800; letter-spacing:.07em; text-transform:uppercase; padding:7px 14px; border-radius:6px; white-space:nowrap; flex-shrink:0; border:none; cursor:pointer; transition:opacity .15s; }
.editorial-btn:hover { opacity:.87; }
.editorial-body { display:grid; grid-template-columns:1fr 1fr 320px; gap:1px; background:var(--border); border:1px solid var(--border); border-radius:var(--radius-lg); overflow:hidden; }
.editorial-main { background:var(--bg2); padding:22px; cursor:pointer; transition:background .15s; }
.editorial-main:hover { background:var(--bg3); }
.editorial-main:hover .em-title { color:var(--accent); }
.editorial-main .tag { margin-bottom:6px; }
.em-thumb { width:100%; aspect-ratio:16/9; border-radius:var(--radius); margin-bottom:12px; overflow:hidden; background-size:cover; background-position:center; }
.em-thumb-inner { display:flex; height:100%; align-items:center; justify-content:center; font-family:var(--font-head); font-size:32px; font-weight:800; color:rgba(255,255,255,.06); letter-spacing:-2px; }
.em-title { font-family:var(--font-head); font-size:16px; font-weight:800; line-height:1.35; letter-spacing:-.2px; margin:6px 0 8px; transition:color .15s; }
.em-exc { font-size:12.5px; color:var(--text2); line-height:1.65; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.em-meta { font-size:11.5px; color:var(--text3); margin-top:10px; display:flex; gap:8px; }
.editorial-list { background:var(--bg2); display:flex; flex-direction:column; }
.el-item { display:flex; gap:13px; align-items:flex-start; padding:16px 18px; border-bottom:1px solid var(--border); cursor:pointer; transition:background .15s; flex:1; }
.el-item:last-child { border-bottom:none; }
.el-item:hover { background:var(--bg3); }
.el-item:hover .el-title { color:var(--accent); }
.el-thumb { width:70px; height:52px; border-radius:var(--radius); flex-shrink:0; background-size:cover; background-position:center; }
.el-title { font-family:var(--font-head); font-size:13px; font-weight:700; line-height:1.4; transition:color .15s; display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }
.el-meta { font-size:11px; color:var(--text3); margin-top:5px; }

/* ---- ARTICLE PAGE ---- */
.article-wrap { max-width:780px; margin:0 auto; padding:40px 24px 80px; }
.article-header { margin-bottom:32px; }
.article-title { font-family:var(--font-head); font-size:32px; font-weight:800; line-height:1.2; letter-spacing:-.5px; margin-bottom:16px; }
.article-meta { font-size:13px; color:var(--text3); display:flex; flex-wrap:wrap; gap:12px; align-items:center; margin-bottom:24px; }
.article-meta span { display:flex; align-items:center; gap:5px; }
.article-thumb { width:100%; aspect-ratio:16/9; border-radius:var(--radius-lg); overflow:hidden; margin-bottom:32px; background-size:cover; background-position:center; }
.article-content { font-size:16px; line-height:1.9; color:var(--text); }
.article-content h2 { font-family:var(--font-head); font-size:22px; font-weight:800; margin:36px 0 14px; letter-spacing:-.3px; }
.article-content h3 { font-family:var(--font-head); font-size:18px; font-weight:700; margin:28px 0 10px; }
.article-content p { margin-bottom:20px; }
.article-content ul, .article-content ol { margin:0 0 20px 24px; }
.article-content li { margin-bottom:8px; }
.article-content blockquote { border-left:3px solid var(--accent); padding:12px 20px; margin:24px 0; color:var(--text2); font-style:italic; background:var(--accent-bg); border-radius:0 var(--radius) var(--radius) 0; }
.article-content code { font-family:'Courier New',monospace; font-size:13.5px; background:var(--bg3); padding:2px 6px; border-radius:4px; }
.article-content pre { background:var(--bg3); border:1px solid var(--border); border-radius:var(--radius-lg); padding:20px; overflow-x:auto; margin-bottom:20px; }
.article-content pre code { background:none; padding:0; }
.article-content img { border-radius:var(--radius); margin:24px 0; }
.article-content a { color:var(--accent); text-decoration:underline; text-underline-offset:3px; }
.article-views { font-size:12px; color:var(--text3); }

/* ---- FOOTER TOP (Newsletter + Social) ---- */
.footer-top {
  position: relative;
  overflow: hidden;
  background: var(--ft-bg);
  border-top: 1px solid var(--ft-border-top);
  padding: 64px 24px 56px;
  transition: background .25s;
}

/* Lưới chấm nền tech */
.footer-grid-bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--ft-dot-color) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: var(--ft-dot-opacity);
  pointer-events: none;
}

/* Vệt sáng gradient */
.footer-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 70% at 20% 110%, var(--ft-glow1) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 80% -10%, var(--ft-glow2) 0%, transparent 55%);
  pointer-events: none;
}

.footer-top-inner {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: 0 52px;
  align-items: start;
}

/* Divider dọc */
.footer-divider {
  background: var(--ft-divider);
  align-self: stretch;
  min-height: 200px;
}

/* Badge label */
.footer-nl-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-head);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ft-badge-color);
  background: var(--ft-badge-bg);
  border: 1px solid var(--ft-badge-border);
  border-radius: 20px;
  padding: 3px 11px;
  margin-bottom: 16px;
}

.footer-nl-title {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.4px;
  color: var(--ft-title);
  margin-bottom: 10px;
  line-height: 1.25;
  transition: color .25s;
}

.footer-nl-desc {
  font-size: 13.5px;
  color: var(--ft-desc);
  line-height: 1.75;
  margin-bottom: 22px;
  transition: color .25s;
}

.footer-nl-form { display: flex; flex-direction: column; gap: 0; }

.footer-nl-row {
  display: flex;
  gap: 0;
  border: 1px solid var(--ft-inp-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ft-inp-bg);
  transition: border-color .2s, box-shadow .2s;
}
.footer-nl-row:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
}

.footer-nl-inp {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 11px 16px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ft-inp-color);
  transition: color .25s;
}
.footer-nl-inp::placeholder { color: var(--ft-inp-placeholder); }

.footer-nl-btn {
  background: var(--accent);
  border: none;
  padding: 11px 20px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 7px;
  transition: opacity .18s;
  flex-shrink: 0;
}
.footer-nl-btn:hover { opacity: .87; }

.footer-nl-note {
  font-size: 11.5px;
  color: var(--ft-note);
  margin-top: 10px;
  text-align: center;
  transition: color .25s;
}

/* Social grid */
.footer-social-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 4px;
}

.footer-soc-card {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 12px 14px;
  border-radius: var(--radius-lg);
  background: var(--ft-soc-bg);
  border: 1px solid var(--ft-soc-border);
  transition: background .18s, border-color .18s, transform .18s, box-shadow .18s;
  cursor: pointer;
}
.footer-soc-card:hover {
  background: var(--ft-soc-bg-hover);
  border-color: var(--ft-soc-border-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(37,99,235,.08);
}
.footer-soc-card:hover .footer-soc-arrow { opacity: 1; transform: translateX(2px); }

.footer-soc-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.footer-soc-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex: 1;
  min-width: 0;
}

.footer-soc-name {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  color: var(--ft-soc-name);
  transition: color .25s;
}

.footer-soc-handle {
  font-size: 11px;
  color: var(--ft-soc-handle);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color .25s;
}

.footer-soc-arrow {
  color: var(--ft-soc-arrow);
  opacity: 0;
  flex-shrink: 0;
  transition: opacity .18s, transform .18s;
}

/* ---- FOOTER BOTTOM ---- */
footer {
  background: var(--ft-bottom-bg);
  border-top: 1px solid var(--ft-bottom-border);
  padding: 22px 24px;
  transition: background .25s;
}
.foot { max-width:1180px; margin:0 auto; display:flex; align-items:center; justify-content:space-between; }
.flinks { display:flex; gap:20px; list-style:none; }
.flinks a { font-size:12.5px; color:var(--ft-link); transition:color .15s; }
.flinks a:hover { color:var(--ft-link-hover); }
.fcopy { font-size:12px; color:var(--ft-copy); }
.foot .logo { color: var(--ft-logo); transition: color .25s; }

/* Footer responsive */
@media(max-width:760px) {
  .footer-top-inner { grid-template-columns: 1fr; gap: 40px 0; }
  .footer-divider { display: none; }
  .footer-social-grid { grid-template-columns: 1fr 1fr; }
  .footer-nl-title { font-size: 18px; }
}
@media(max-width:480px) {
  .footer-social-grid { grid-template-columns: 1fr; }
  .foot { flex-direction:column; gap:16px; text-align:center; }
  .flinks { flex-wrap:wrap; justify-content:center; }
}

/* ---- SEARCH OVERLAY ---- */
.search-overlay { display:none; position:fixed; inset:0; z-index:500; background:rgba(0,0,0,.55); backdrop-filter:blur(6px); align-items:flex-start; justify-content:center; padding-top:80px; }
.search-overlay.open { display:flex; }
.search-box { background:var(--bg2); border:1px solid var(--border2); border-radius:var(--radius-lg); width:100%; max-width:600px; padding:20px; box-shadow:0 24px 60px rgba(0,0,0,.25); }
.search-inp { width:100%; background:var(--bg); border:1px solid var(--border2); border-radius:var(--radius); padding:11px 14px; font-family:var(--font-body); font-size:15px; color:var(--text); outline:none; }
.search-inp:focus { border-color:var(--accent); }
.search-results { margin-top:14px; display:flex; flex-direction:column; gap:2px; max-height:360px; overflow-y:auto; }
.search-item { padding:12px 14px; border-radius:var(--radius); cursor:pointer; transition:background .12s; }
.search-item:hover { background:var(--bg3); }
.search-item-title { font-family:var(--font-head); font-size:14px; font-weight:700; }
.search-item-meta { font-size:12px; color:var(--text3); margin-top:3px; }

/* ---- PAGINATION ---- */
.pagination { display:flex; justify-content:center; gap:4px; padding:40px 0 20px; }
.page-btn { width:36px; height:36px; border-radius:var(--radius); border:1px solid var(--border); background:var(--bg2); color:var(--text2); font-size:13px; font-weight:600; cursor:pointer; display:flex; align-items:center; justify-content:center; transition:all .15s; text-decoration:none; }
.page-btn:hover,.page-btn.active { background:var(--accent); color:#fff; border-color:var(--accent); }

/* ---- ANIMATIONS ---- */
@keyframes fi { from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:none} }
.fi { animation:fi .4s ease both; }

/* ---- RESPONSIVE ---- */
@media(max-width:900px) {
  .main-wrap { grid-template-columns:1fr; }
  .col-left { border-right:none; padding-right:0; }
  .col-right { padding-left:0; border-top:1px solid var(--border); padding-top:28px; }
  .stories { grid-template-columns:1fr; }
  .topic-grid { grid-template-columns:1fr 1fr; }
  .editorial-body { grid-template-columns:1fr; }
}
@media(max-width:600px) {
  .nav-links { display:none; }
  .topic-grid { grid-template-columns:1fr; }
  .article-title { font-size:24px; }
  .featured { aspect-ratio:unset; min-height:300px; }
  .feat-body { padding:20px 18px 24px; }
  .feat-title { font-size:20px; line-height:1.3; margin-bottom:8px; }
  .feat-sub { font-size:13px; margin-bottom:12px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
}

/* ---- TTS PLAYER ---- */
.tts-player {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 20px 0 28px;
  padding: 14px 18px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  transition: border-color .2s, box-shadow .2s;
  flex-wrap: wrap;
}
.tts-player.tts-playing {
  border-color: var(--accent);
  box-shadow: 0 2px 16px rgba(59,130,246,.15);
}

/* Left */
.tts-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.tts-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-bg);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.tts-label {
  font-family: var(--font-head);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text1);
  white-space: nowrap;
}
.tts-status {
  font-size: 11.5px;
  color: var(--text3);
  margin-top: 2px;
  white-space: nowrap;
}

/* Progress */
.tts-progress-wrap {
  flex: 1;
  min-width: 120px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.tts-progress-bar {
  position: relative;
  height: 4px;
  background: var(--bg3);
  border-radius: 2px;
  cursor: pointer;
}
.tts-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  width: 0%;
  transition: width .3s linear;
}
.tts-progress-thumb {
  position: absolute;
  top: 50%;
  left: 0%;
  transform: translate(-50%, -50%) scale(0);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  transition: left .3s linear, transform .15s;
  box-shadow: 0 0 0 3px var(--accent-bg);
}
.tts-progress-bar:hover .tts-progress-thumb { transform: translate(-50%,-50%) scale(1); }
.tts-time {
  font-size: 11px;
  color: var(--text3);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

/* Controls */
.tts-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.tts-play-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity .15s, transform .15s;
  box-shadow: 0 3px 10px rgba(59,130,246,.35);
}
.tts-play-btn:hover { opacity: .87; transform: scale(1.06); }
.tts-play-btn:active { transform: scale(.93); }
.tts-play-btn .ico-loading {
  animation: tts-spin .8s linear infinite;
}
@keyframes tts-spin { to { transform: rotate(360deg); } }

.tts-stop-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s, color .15s;
}
.tts-stop-btn:hover { background: rgba(239,68,68,.1); color: #ef4444; border-color: rgba(239,68,68,.3); }

.tts-speed-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text2);
  font-family: var(--font-head);
  font-size: 11.5px;
  font-weight: 700;
  padding: 4px 8px;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
  white-space: nowrap;
}
.tts-speed-btn:hover,
.tts-speed-btn.active { background: var(--accent-bg); color: var(--accent); border-color: var(--accent); }

/* Sóng âm animate khi đang phát */
.tts-playing .tts-waves rect { animation: tts-wave 1s ease-in-out infinite alternate; }
.tts-playing .tts-waves rect:nth-child(1) { animation-delay: 0s;    animation-duration: .9s; }
.tts-playing .tts-waves rect:nth-child(2) { animation-delay: .15s;  animation-duration: .7s; }
.tts-playing .tts-waves rect:nth-child(3) { animation-delay: .05s;  animation-duration: .8s; }
.tts-playing .tts-waves rect:nth-child(4) { animation-delay: .2s;   animation-duration: .75s; }
.tts-playing .tts-waves rect:nth-child(5) { animation-delay: .1s;   animation-duration: .85s; }
@keyframes tts-wave {
  from { transform: scaleY(.4); transform-origin: bottom; }
  to   { transform: scaleY(1);  transform-origin: bottom; }
}

/* Mobile */
@media (max-width: 600px) {
  .tts-player {
    gap: 10px;
    padding: 12px 14px;
    flex-wrap: wrap;
    align-items: center;
  }
  /* Hàng 1: icon + info + controls */
  .tts-left    { flex: 1; min-width: 0; }
  .tts-controls { flex-shrink: 0; order: 2; }
  /* Hàng 2: progress bar chiếm toàn bộ width */
  .tts-progress-wrap {
    order: 3;
    flex-basis: 100%;
    min-width: 0;
  }
  .tts-icon { width: 34px; height: 34px; }
  .tts-label { font-size: 12px; }
  .tts-status { font-size: 11px; }
  .tts-play-btn { width: 38px; height: 38px; }
  .tts-speed-btn { font-size: 11px; padding: 3px 7px; }
}

/* ---- BACK TO TOP ---- */
#backToTop {
  position: fixed;
  bottom: 28px;
  right: 24px;
  z-index: 300;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, #1e3a8a, #3b82f6);
  color: #fff;
  box-shadow: 0 4px 16px rgba(59,130,246,.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(14px) scale(.88);
  pointer-events: none;
  transition: opacity .28s ease, transform .28s ease, box-shadow .2s;
}
#backToTop.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
#backToTop:hover {
  box-shadow: 0 6px 22px rgba(59,130,246,.5);
  transform: translateY(-3px) scale(1.07);
}
#backToTop:active {
  transform: scale(.93);
  box-shadow: 0 2px 10px rgba(59,130,246,.3);
}
@media (max-width: 600px) {
  #backToTop {
    bottom: 18px;
    right: 16px;
    width: 40px;
    height: 40px;
  }
}

/* ---- ADMIN STYLES ---- */
.adm-wrap { max-width:1180px; margin:0 auto; padding:24px; }
.adm-header { background:var(--bg2); border-bottom:1px solid var(--border); padding:0 24px; height:52px; display:flex; align-items:center; justify-content:space-between; position:sticky; top:0; z-index:100; }
.adm-logo { font-family:var(--font-head); font-weight:800; font-size:15px; display:flex; align-items:center; gap:8px; }
.adm-nav { display:flex; gap:4px; }
.adm-nav a { font-size:13px; font-weight:500; color:var(--text2); padding:5px 12px; border-radius:var(--radius); transition:color .15s,background .15s; }
.adm-nav a:hover,.adm-nav a.active { color:var(--accent); background:var(--accent-bg); }
.adm-user { font-size:12.5px; color:var(--text3); display:flex; align-items:center; gap:12px; }
.adm-grid { display:grid; grid-template-columns:220px 1fr; gap:24px; margin-top:24px; }
.adm-sidebar { display:flex; flex-direction:column; gap:4px; }
.adm-menu-item { display:flex; align-items:center; gap:10px; padding:9px 14px; border-radius:var(--radius); font-size:13.5px; font-weight:500; color:var(--text2); cursor:pointer; transition:all .15s; text-decoration:none; }
.adm-menu-item:hover,.adm-menu-item.active { background:var(--accent-bg); color:var(--accent); }
.adm-menu-item svg { flex-shrink:0; opacity:.7; }
.adm-content { min-width:0; }
.adm-card { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius-lg); padding:24px; margin-bottom:20px; }
.adm-card-title { font-family:var(--font-head); font-size:14px; font-weight:800; margin-bottom:18px; display:flex; align-items:center; justify-content:space-between; }
.adm-stats { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:24px; }
.stat-card { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius-lg); padding:18px 20px; }
.stat-num { font-family:var(--font-head); font-size:28px; font-weight:800; color:var(--accent); }
.stat-label { font-size:12px; color:var(--text3); margin-top:4px; font-weight:500; }
.adm-table { width:100%; border-collapse:collapse; font-size:13.5px; }
.adm-table th { text-align:left; font-size:11px; font-weight:700; letter-spacing:.07em; text-transform:uppercase; color:var(--text3); padding:10px 12px; border-bottom:2px solid var(--border); }
.adm-table td { padding:12px; border-bottom:1px solid var(--border); vertical-align:middle; }
.adm-table tr:hover td { background:var(--bg3); }
.adm-table tr:last-child td { border-bottom:none; }
.badge { font-size:10px; font-weight:700; padding:3px 8px; border-radius:20px; }
.badge-pub  { background:rgba(16,185,129,.12); color:#10b981; }
.badge-draft{ background:rgba(100,116,139,.12); color:#64748b; }
.adm-btn { display:inline-flex; align-items:center; gap:6px; padding:7px 16px; border-radius:var(--radius); font-family:var(--font-head); font-size:13px; font-weight:700; cursor:pointer; border:none; transition:opacity .15s,background .15s; text-decoration:none; }
.adm-btn-primary { background:var(--accent); color:#fff; }
.adm-btn-primary:hover { opacity:.87; }
.adm-btn-ghost { background:var(--bg3); color:var(--text2); border:1px solid var(--border); }
.adm-btn-ghost:hover { background:var(--bg4); color:var(--text); }
.adm-btn-danger { background:rgba(239,68,68,.1); color:#ef4444; border:1px solid rgba(239,68,68,.2); }
.adm-btn-danger:hover { background:#ef4444; color:#fff; }
.adm-btn-sm { padding:4px 10px; font-size:12px; }
.form-group { margin-bottom:18px; }
.form-label { font-size:12px; font-weight:700; color:var(--text2); text-transform:uppercase; letter-spacing:.05em; margin-bottom:7px; display:block; }
.form-input,.form-select,.form-textarea { width:100%; background:var(--bg); border:1px solid var(--border2); border-radius:var(--radius); padding:9px 12px; font-family:var(--font-body); font-size:14px; color:var(--text); outline:none; transition:border-color .15s; }
.form-input:focus,.form-select:focus,.form-textarea:focus { border-color:var(--accent); }
.form-textarea { resize:vertical; min-height:120px; line-height:1.6; }
.form-hint { font-size:11.5px; color:var(--text3); margin-top:5px; }
.editor-wrap { border:1px solid var(--border2); border-radius:var(--radius); overflow:hidden; }
.editor-toolbar { background:var(--bg3); border-bottom:1px solid var(--border); padding:8px 12px; display:flex; gap:4px; flex-wrap:wrap; }
.editor-tool { background:none; border:1px solid transparent; border-radius:4px; padding:4px 8px; font-size:12px; color:var(--text2); cursor:pointer; transition:all .12s; }
.editor-tool:hover { background:var(--bg4); border-color:var(--border); color:var(--text); }
.editor-area { width:100%; background:var(--bg); border:none; padding:16px; font-family:var(--font-body); font-size:14.5px; color:var(--text); outline:none; min-height:400px; line-height:1.8; resize:vertical; }
.seo-preview { background:var(--bg3); border-radius:var(--radius); padding:16px; margin-top:12px; }
.seo-preview-title { font-size:18px; color:#1a0dab; font-weight:400; margin-bottom:4px; cursor:pointer; }
.seo-preview-url { font-size:13px; color:#006621; margin-bottom:6px; }
.seo-preview-desc { font-size:13px; color:#545454; line-height:1.58; }
[data-theme="dark"] .seo-preview-title { color:#8ab4f8; }
[data-theme="dark"] .seo-preview-url   { color:#5db075; }
[data-theme="dark"] .seo-preview-desc  { color:#bdc1c6; }
.char-count { font-size:11px; color:var(--text3); text-align:right; margin-top:4px; }
.char-count.warn { color:#f59e0b; }
.char-count.over { color:#ef4444; }
.login-wrap { min-height:100vh; display:flex; align-items:center; justify-content:center; background:var(--bg); }
.login-card { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius-lg); padding:40px; width:100%; max-width:380px; }
.login-logo { text-align:center; margin-bottom:28px; }
.alert { padding:12px 16px; border-radius:var(--radius); font-size:13.5px; margin-bottom:16px; }
.alert-error { background:rgba(239,68,68,.1); color:#ef4444; border:1px solid rgba(239,68,68,.2); }
.alert-success { background:rgba(16,185,129,.1); color:#10b981; border:1px solid rgba(16,185,129,.2); }
.thumb-preview { width:120px; height:80px; border-radius:var(--radius); border:2px dashed var(--border2); display:flex; align-items:center; justify-content:center; font-size:12px; color:var(--text3); cursor:pointer; overflow:hidden; background-size:cover; background-position:center; transition:border-color .15s; }
.thumb-preview:hover { border-color:var(--accent); }