/* Trang /combo — danh sách combo theo nhu cầu (public/js/combo-hub.js) */
/* Menu mobile ẩn nằm ngoài khung → không cho trang cuộn ngang (giống info-pages.css) */
html,body{overflow-x:clip}
.ch{--ch-ink:#0f172a;--ch-text:#334155;--ch-muted:#64748b;--ch-line:#e5e7eb;--ch-soft:#f8fafc;
  --ch-green:#10b981;--ch-green-d:#047857;--ch-green-bg:#ecfdf5;--ch-green-line:#a7f3d0;
  --ch-cta:#e94560;--ch-cta-h:#c81e3a;--ch-amber-bg:#fef3c7;--ch-amber:#92400e;
  background:#fff;color:var(--ch-text);line-height:1.6}
.ch *,.ch *::before,.ch *::after{box-sizing:border-box}
.ch :where(h1,h2,h3,p,ul){margin:0}
.ch-wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* Hero */
.ch-hero{background:linear-gradient(180deg,var(--ch-green-bg) 0%,#fff 100%);padding:56px 0 28px}
.ch-eyebrow{display:block;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--ch-green-d);margin-bottom:10px}
.ch-h1{font-size:clamp(30px,4.4vw,46px);font-weight:900;line-height:1.12;letter-spacing:-.02em;color:var(--ch-ink);max-width:720px;text-wrap:balance}
.ch-h1 em{font-style:normal;color:var(--ch-green)}
.ch-lede{font-size:17px;color:var(--ch-muted);max-width:620px;margin-top:16px}
.ch-trust{display:flex;flex-wrap:wrap;gap:8px 18px;list-style:none;padding:0;margin-top:18px;font-size:14px;font-weight:600;color:var(--ch-text)}
.ch-trust li{display:inline-flex;align-items:center;gap:6px}
.ch-trust svg{width:16px;height:16px;color:var(--ch-green)}

/* Bộ lọc */
.ch-filters{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.ch-chip{font:inherit;font-size:14px;font-weight:600;color:var(--ch-text);background:#fff;border:1.5px solid var(--ch-line);border-radius:999px;padding:8px 16px;cursor:pointer;transition:border-color .15s,background .15s;white-space:nowrap}
.ch-chip:hover{border-color:var(--ch-ink)}
.ch-chip[aria-pressed="true"]{background:var(--ch-ink);border-color:var(--ch-ink);color:#fff}
.ch-chip small{font-size:12px;font-weight:600;opacity:.6;margin-left:4px}

/* Lưới thẻ */
.ch-list{padding:22px 0 56px}
.ch-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.ch-card{position:relative;display:flex;flex-direction:column;gap:14px;background:#fff;border:1.5px solid var(--ch-line);border-radius:18px;padding:22px;transition:box-shadow .2s,border-color .2s}
.ch-card:hover{box-shadow:0 12px 30px rgba(15,23,42,.08)}
.ch-card--featured{border:2px solid var(--ch-green);box-shadow:0 12px 32px rgba(16,185,129,.14)}
.ch-card[hidden]{display:none}
.ch-ribbon{position:absolute;top:-12px;left:20px;font-size:12px;font-weight:800;letter-spacing:.02em;background:var(--ch-green);color:#fff;padding:3px 12px;border-radius:999px}
.ch-aud{font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--ch-green-d)}
.ch-name{font-size:21px;font-weight:800;line-height:1.25;color:var(--ch-ink);letter-spacing:-.01em}
.ch-name a{color:inherit;text-decoration:none}
.ch-name a:hover{text-decoration:underline;text-underline-offset:3px}
.ch-tagline{font-size:15px;color:var(--ch-muted)}

.ch-thumbs{display:flex;align-items:center}
.ch-thumb{width:46px;height:46px;border-radius:11px;border:2.5px solid #fff;margin-left:-10px;background:var(--ch-soft);overflow:hidden;box-shadow:0 1px 4px rgba(15,23,42,.16);flex:none;display:grid;place-items:center;font-size:13px;font-weight:800;color:var(--ch-muted)}
.ch-thumb:first-child{margin-left:0}
.ch-thumb{position:relative}
.ch-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center top;display:block;background:#fff}
.ch-thumbs__count{margin-left:12px;font-size:13px;font-weight:700;color:var(--ch-muted)}

.ch-items{list-style:none;padding:12px 0 0;border-top:1px dashed var(--ch-line);display:flex;flex-direction:column;gap:6px;font-size:14px}
.ch-items li{display:flex;justify-content:space-between;gap:12px}
.ch-items a{color:var(--ch-text);text-decoration:none}
.ch-items a:hover{color:var(--ch-green-d);text-decoration:underline}
.ch-items__price{color:var(--ch-muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.ch-items li.ch-items__extra{display:none}
.ch-items.is-open li.ch-items__extra{display:flex}
.ch-more{align-self:flex-start;font:inherit;font-size:14px;font-weight:700;color:var(--ch-green-d);background:none;border:0;padding:0;cursor:pointer}
.ch-more:hover{text-decoration:underline}

.ch-price{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:8px 12px;margin-top:auto;padding-top:6px}
.ch-price__old{display:block;font-size:14px;color:var(--ch-muted);text-decoration:line-through}
.ch-price__now{display:block;font-size:28px;font-weight:900;line-height:1.1;color:var(--ch-ink);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.ch-save{font-size:13px;font-weight:800;background:var(--ch-amber-bg);color:var(--ch-amber);padding:4px 10px;border-radius:999px;white-space:nowrap}
.ch-actions{display:flex;gap:10px}
.ch-btn{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:46px;padding:0 16px;border-radius:12px;font-size:15px;font-weight:800;text-decoration:none;transition:background .15s,transform .15s;white-space:nowrap}
.ch-btn--ghost{background:#fff;color:var(--ch-ink);border:1.5px solid var(--ch-line)}
.ch-btn--ghost:hover{background:var(--ch-soft);color:var(--ch-ink)}
.ch-btn--buy{background:var(--ch-cta);color:#fff;box-shadow:0 8px 20px rgba(233,69,96,.25)}
.ch-btn--buy:hover{background:var(--ch-cta-h);color:#fff;transform:translateY(-1px)}

.ch-empty,.ch-loading{text-align:center;padding:60px 20px;color:var(--ch-muted)}

/* Bảng so sánh */
.ch-compare{background:var(--ch-soft);padding:56px 0}
.ch-h2{font-size:clamp(22px,3vw,30px);font-weight:800;line-height:1.2;color:var(--ch-ink);letter-spacing:-.015em;text-align:center}
.ch-sub{font-size:16px;color:var(--ch-muted);text-align:center;max-width:620px;margin:10px auto 28px}
.ch-table-wrap{position:relative;overflow-x:auto;background:#fff;border:1px solid var(--ch-line);border-radius:16px;-webkit-overflow-scrolling:touch}
.ch-table{width:100%;border-collapse:collapse;font-size:14px;min-width:560px}
.ch-table th,.ch-table td{padding:12px 14px;border-bottom:1px solid var(--ch-line);text-align:center;vertical-align:middle}
.ch-table th:first-child,.ch-table td:first-child{text-align:left;position:sticky;left:0;background:#fff;z-index:1}
.ch-table thead th{font-size:13px;font-weight:800;color:var(--ch-ink);background:#fff;line-height:1.3}
.ch-table thead th a{color:inherit;text-decoration:none}
.ch-table thead th a:hover{color:var(--ch-green-d)}
.ch-table td.is-yes{color:var(--ch-green)}
.ch-table td.is-no{color:#cbd5e1}
.ch-table td svg{width:18px;height:18px;vertical-align:middle}
.ch-table .ch-col--featured{background:var(--ch-green-bg)}
.ch-table tfoot td{border-bottom:0;font-weight:800;color:var(--ch-ink);font-variant-numeric:tabular-nums}
.ch-table tfoot .ch-table__old{display:block;font-size:12px;font-weight:500;color:var(--ch-muted);text-decoration:line-through}
.ch-table__prod{font-weight:600;color:var(--ch-text)}
.ch-table__prod small{display:block;font-weight:500;color:var(--ch-muted);font-size:12px}

/* Chân trang */
.ch-foot{padding:48px 0 64px;text-align:center}
.ch-foot p{color:var(--ch-muted);margin:8px auto 20px;max-width:560px}
.ch-foot__actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.ch-foot__actions .ch-btn{flex:0 0 auto}

@media (max-width:820px){
  .ch-grid{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:640px){
  .ch-wrap{padding:0 16px}
  .ch-hero{padding:36px 0 18px}
  .ch-lede{font-size:16px}
  .ch-filters{flex-wrap:nowrap;overflow-x:auto;margin:22px -16px 0;padding:0 16px 4px;scrollbar-width:none}
  .ch-filters::-webkit-scrollbar{display:none}
  .ch-card{padding:18px}
  .ch-name{font-size:19px}
  .ch-price__now{font-size:25px}
  .ch-compare{padding:44px 0}
}
.ch .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}