/* Kiểm Hạng YouTube — giao diện sáng, một màu nhấn xanh, tối ưu cho iPhone */

:root {
  --bg: #f5f5f7;
  --card: #ffffff;
  --bar: #000000;
  --ink: #1d1d1f;
  --ink-2: #3a3a3c;
  --ink-3: #77777c;
  --on-dark: #ffffff;
  --on-dark-2: #c7c7cc;
  --blue: #0066cc;
  --blue-2: #0071e3;
  --blue-dark: #2997ff;
  --line: #e2e2e6;
  --line-soft: rgba(0, 0, 0, 0.05);
  --good: #1a7f37;
  --warn: #b25e00;
  --bad: #b3261e;
  --bad-bg: #fdf1f0;
  --bad-line: #f1c9c5;

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-pill: 999px;
  --gut: 16px;
  --bar-h: 44px;
  --sub-h: 52px;

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, "Segoe UI", Roboto, sans-serif;
  --font-d: -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
html, body, button, input, a, label { touch-action: manipulation; }
/* ô nhập >= 16px: nhỏ hơn thì iPhone tự phóng to khi bấm vào */
input, select, textarea { font-size: max(16px, 1em); }

body {
  margin: 0; min-width: 320px; overflow-x: hidden;
  background: var(--bg); color: var(--ink);
  font: 400 17px/1.47 var(--font); letter-spacing: -0.37px;
  padding-bottom: env(safe-area-inset-bottom);
}
h1, h2, h3 { font-family: var(--font-d); font-weight: 600; margin: 0; }
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; padding: 0; }
a { color: var(--blue); text-decoration: none; }
:focus-visible { outline: 2px solid var(--blue-2); outline-offset: 2px; }
.hidden { display: none !important; }
.press { transition: transform 0.15s ease; }
button:active, a.chip:active, .chip:active { transform: scale(0.96); }
button[disabled]:active { transform: none; }

/* ------------------------------ thanh trên ------------------------------ */

.top-bar {
  position: sticky; top: 0; z-index: 50;
  height: calc(var(--bar-h) + env(safe-area-inset-top));
  padding: env(safe-area-inset-top) var(--gut) 0;
  background: var(--bar); color: var(--on-dark);
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.brand { min-width: 0; display: flex; align-items: center; gap: 7px; font-size: 12px; letter-spacing: -0.1px; white-space: nowrap; overflow: hidden; }
.brand strong { font-weight: 600; }
.brand .dot { flex: 0 0 auto; width: 6px; height: 6px; border-radius: 50%; background: var(--blue-dark); }
.brand-sub { color: var(--on-dark-2); }
.chip-dark { flex: 0 0 auto; background: #1d1d1f; color: var(--on-dark); font-size: 12px; line-height: 1; padding: 8px 12px; border-radius: var(--r-sm); }

.sub-bar {
  position: sticky; z-index: 40; top: calc(var(--bar-h) + env(safe-area-inset-top));
  height: var(--sub-h); padding: 0 var(--gut);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: rgba(245, 245, 247, 0.82);
  -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line-soft);
}
.sub-bar h1 { font-size: 21px; line-height: 1.2; white-space: nowrap; cursor: pointer; }
.sub-count { color: var(--ink-3); font-weight: 400; font-size: 17px; }

.btn-plain { color: var(--blue); font-size: 14px; letter-spacing: -0.2px; padding: 8px 4px; }
.sub-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
.btn-plain[disabled] { color: var(--ink-3); }

/* -------------------------------- bố cục -------------------------------- */

main { max-width: 720px; margin: 0 auto; padding: 16px var(--gut) 48px; }

.toolbar { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.search-wrap { position: relative; display: flex; align-items: center; }
.search-wrap svg { position: absolute; left: 16px; width: 15px; height: 15px; color: var(--ink-3); pointer-events: none; }
.search-input {
  width: 100%; height: 42px; padding: 0 20px 0 40px;
  background: var(--card); color: var(--ink);
  border: 1px solid rgba(0, 0, 0, 0.08); border-radius: var(--r-pill);
  font-size: 17px; letter-spacing: -0.37px;
}
.search-input::placeholder { color: var(--ink-3); }

/* hàng chip lọc cuộn ngang sát mép màn hình, mép mờ báo còn nữa */
.chip-row {
  display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none;
  margin: 0 calc(var(--gut) * -1); padding: 2px var(--gut);
  scroll-padding: 0 var(--gut); overscroll-behavior-x: contain;
  -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 28px), transparent);
  mask-image: linear-gradient(90deg, #000 calc(100% - 28px), transparent);
}
.chip-row.scrolled {
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 28px, #000 calc(100% - 28px), transparent);
  mask-image: linear-gradient(90deg, transparent, #000 28px, #000 calc(100% - 28px), transparent);
}
.chip-row::-webkit-scrollbar { display: none; }
.chip-row::after { content: ""; flex: 0 0 12px; }
.f-chip {
  flex: 0 0 auto; display: inline-flex; align-items: center; white-space: nowrap;
  min-height: 36px; padding: 0 14px;
  background: var(--card); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--r-pill);
  font-size: 14px; letter-spacing: -0.2px; line-height: 1;
}
.f-chip[aria-pressed="true"] { border: 2px solid var(--blue-2); padding: 0 13px; font-weight: 600; }
.f-chip .n { color: var(--ink-3); font-weight: 400; margin-left: 5px; }
.f-chip.zero { color: var(--ink-3); }
.chip-row.small .f-chip { min-height: 32px; font-size: 13px; background: transparent; }
.chip-row.small .f-chip[aria-pressed="true"] { background: var(--card); }

.list-head {
  min-height: 34px; margin: 2px 2px 6px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  font-size: 13px; color: var(--ink-3);
}
.lh-text { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sep { opacity: 0.45; margin: 0 5px; }
.list-head .btn-plain { flex: 0 0 auto; font-weight: 600; padding: 8px 2px; }
.lh-run { flex: 0 0 auto; display: inline-flex; align-items: center; gap: 7px; color: var(--ink-2); font-weight: 600; }
.lh-stop { color: var(--bad) !important; padding: 6px 2px 6px 8px !important; }
.lh-stop[disabled] { color: var(--ink-3) !important; }
.lh-hint { flex: 0 0 auto; font-size: 12px; }

/* ------------------------------ thẻ từ khoá ------------------------------ */

.list { display: flex; flex-direction: column; gap: 9px; }
.kw {
  display: grid; grid-template-columns: 26px minmax(0, 1fr) auto; column-gap: 6px; align-items: start;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 11px 13px 12px;
}
.kw.busy { border-color: var(--blue); }
.kw-star {
  grid-column: 1; grid-row: 1 / span 2; display: grid; place-items: center;
  width: 36px; height: 36px; margin: -6px 0 0 -10px; color: var(--ink-3);
}
.kw-star[aria-pressed="true"], .kw-star.on { color: var(--blue); }
.kw-star svg { width: 17px; height: 17px; }
.kw-title { grid-column: 2; grid-row: 1; text-align: left; font-size: 16px; font-weight: 600; line-height: 1.22; letter-spacing: -0.3px; overflow-wrap: anywhere; }
.kw-meta {
  grid-column: 2; grid-row: 2; text-align: left; margin-top: 1px; max-width: 100%;
  font-size: 12px; line-height: 1.35; color: var(--ink-3);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.kw-meta .sep { margin: 0 4px; }
.ex { color: var(--ink-2); font-weight: 500; }
.kw-check { grid-column: 3; grid-row: 1 / span 2; align-self: center; margin-left: 6px; }

.chips { grid-column: 1 / -1; display: flex; gap: 6px; min-width: 0; margin-top: 9px; }
.chip {
  flex: 1 1 0; min-width: 0; overflow: hidden;
  display: flex; align-items: baseline; gap: 5px;
  background: var(--bg); border-radius: var(--r-sm); padding: 5px 9px 6px;
}
.ck { flex: 0 0 auto; font-size: 11px; color: var(--ink-3); }
.cv { font: 600 17px/1.1 var(--font-d); letter-spacing: -0.3px; }
.cv.top { color: var(--blue); }
.cv.mid { color: var(--ink); }
.cv.low { color: var(--ink-3); }
.cv.none { color: var(--ink-3); font-weight: 400; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cd, .cx { flex: 0 0 auto; font-size: 11px; }
.cx { color: var(--ink-3); }
.cd.up { color: var(--good); }
.cd.down { color: var(--bad); }

.spin-s {
  display: inline-block; width: 11px; height: 11px; border-radius: 50%; vertical-align: -1px;
  border: 2px solid rgba(0, 0, 0, 0.14); border-top-color: var(--blue); animation: spin 0.7s linear infinite;
}
.spin {
  display: inline-block; width: 13px; height: 13px; border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.35); border-top-color: #fff; animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --------------------------------- nút --------------------------------- */

.btn-pill {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  min-height: 40px; padding: 12px 20px; border-radius: var(--r-pill);
  background: var(--blue); color: #fff; font-size: 14px; letter-spacing: -0.2px; line-height: 1;
}
.btn-pill[disabled] { background: var(--line); color: var(--ink-3); }
.btn-pill[disabled] .spin { border-color: rgba(0, 0, 0, 0.15); border-top-color: var(--ink-3); }
.btn-pill.lg { font-size: 17px; padding: 13px 24px; letter-spacing: -0.37px; }
.btn-pill.sm { flex: 0 0 auto; min-height: 34px; padding: 9px 17px; }
.btn-pill.wide { width: 100%; }

/* ------------------------------ ô nhập + form ------------------------------ */

.text-input {
  width: 100%; min-height: 44px; padding: 10px 14px;
  background: var(--card); color: var(--ink);
  border: 1px solid rgba(0, 0, 0, 0.12); border-radius: var(--r-md);
  font: inherit; font-size: 17px; line-height: 1.35;
}
.text-input::placeholder { color: var(--ink-3); }
.text-input:focus { outline: none; border-color: var(--blue-2); box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15); }
textarea.text-input { display: block; resize: vertical; min-height: 84px; }

.fl { display: block; margin: 0 2px 6px; font-size: 13px; font-weight: 600; color: var(--ink-2); }
.fh { font-weight: 400; color: var(--ink-3); margin-left: 4px; }
.err { color: var(--bad); font-size: 14px; min-height: 20px; margin-top: 10px; }
.err:empty { min-height: 0; margin: 0; }

.add-box { margin-top: 24px; padding: 12px; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); }
.add-row { display: flex; gap: 8px; margin-top: 8px; }
.add-row .text-input { flex: 1 1 auto; min-width: 0; }
.add-row .btn-pill { flex: 0 0 auto; min-height: 44px; }
.add-box .err:not(:empty) { margin-top: 6px; }

.foot-note { margin: 17px 12px 0; text-align: center; color: var(--ink-3); font-size: 12px; line-height: 1.45; }
.foot-note b { color: var(--ink-2); font-weight: 600; }

.setup {
  max-width: 560px; margin: 0 auto 17px; padding: 24px 17px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
}
.setup h2 { font-size: 28px; line-height: 1.14; }
.setup-sub { color: var(--ink-3); font-size: 15px; margin: 6px 0 24px; }
.setup-form { display: flex; flex-direction: column; gap: 17px; }
.field { display: block; }
.setup-note { color: var(--ink-3); font-size: 12px; margin: 12px 0 0; text-align: center; }

.empty { text-align: center; color: var(--ink-3); padding: 48px 17px; font-size: 17px; }

/* -------------------------------- trang phủ -------------------------------- */

.sheet {
  position: fixed; inset: 0; z-index: 90; overflow-y: auto; -webkit-overflow-scrolling: touch;
  background: var(--bg); animation: rise 0.28s cubic-bezier(0.32, 0.72, 0, 1);
}
@keyframes rise { from { transform: translateY(14px); opacity: 0; } }
.sheet-nav {
  position: sticky; top: 0; z-index: 10;
  height: calc(var(--sub-h) + env(safe-area-inset-top)); padding: env(safe-area-inset-top) var(--gut) 0;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: rgba(245, 245, 247, 0.82);
  -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line-soft);
}
.back { display: flex; align-items: center; gap: 4px; color: var(--blue); font-size: 17px; }
.back svg { width: 17px; height: 17px; }
.nav-right { display: flex; align-items: center; gap: 8px; }
.star-pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 9px 15px; border-radius: var(--r-pill);
  background: var(--card); border: 1px solid var(--line); color: var(--ink-2); font-size: 14px;
}
.star-pill[aria-pressed="true"] { background: var(--blue); border-color: var(--blue); color: #fff; }
.star-pill svg { width: 15px; height: 15px; }

.sheet-body { max-width: 720px; margin: 0 auto; padding: 24px var(--gut) 48px; }
.hero { margin-bottom: 24px; }
.hero h2 { font-size: 34px; line-height: 1.1; overflow-wrap: anywhere; }
.hero .sub { color: var(--ink-3); font-size: 14px; margin-top: 6px; }
.hero .where { color: var(--ink-2); font-size: 12px; margin-top: 8px; }

.note-box {
  display: flex; align-items: center; gap: 9px; margin-bottom: 17px; padding: 13px 17px;
  background: var(--card); border: 1px solid var(--blue); border-radius: var(--r-lg);
  font-size: 14px; color: var(--ink-2);
}
.note-box .spin { border-color: rgba(0, 0, 0, 0.14); border-top-color: var(--blue); width: 15px; height: 15px; flex: 0 0 auto; }
.bad-box {
  margin-bottom: 17px; padding: 12px 17px; overflow-wrap: anywhere;
  background: var(--bad-bg); border: 1px solid var(--bad-line); border-radius: var(--r-lg);
  font-size: 13px; line-height: 1.45; color: var(--ink-2);
}
.bad-box b { color: var(--bad); }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; margin-bottom: 17px; }
.stat { min-width: 0; padding: 10px 6px 11px; text-align: center; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); }
.stat .v { display: block; font: 600 24px/1.14 var(--font-d); letter-spacing: -0.37px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stat .v.blue { color: var(--blue); }
.stat .k { display: block; margin-top: 2px; font-size: 11px; color: var(--ink-3); }
.run-info { color: var(--ink-3); font-size: 13px; line-height: 1.5; margin: -6px 0 4px; }

.sec-head { margin: 32px 0 12px; font-size: 21px; }
.sec-head .n { color: var(--ink-3); font-weight: 400; font-size: 17px; }
.sec-note { margin: -6px 0 10px; color: var(--ink-3); font-size: 13px; line-height: 1.45; }
.sec-note b { color: var(--ink-2); font-weight: 600; }
.card { padding: 24px; overflow: hidden; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); }
.card.tight { padding: 12px 17px; }
.muted { color: var(--ink-3); text-align: center; }
.dim { color: var(--ink-3); font-weight: 400; font-size: 11px; }

/* dòng video */
.vid { display: flex; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line-soft); color: inherit; }
.vid:first-child { border-top: 0; padding-top: 0; }
.vid:last-child { padding-bottom: 0; }
.vid .pos { flex: 0 0 34px; padding-top: 2px; text-align: center; font-size: 17px; font-weight: 600; color: var(--ink-3); }
.vid.ours .pos, .vid.ours .vt { color: var(--blue); }
.vid .thumb { flex: 0 0 74px; height: 42px; border-radius: var(--r-sm); background: var(--bg); object-fit: cover; }
.vid .thumb.vert { flex-basis: 34px; width: 34px; height: 56px; }
.vid .info { flex: 1; min-width: 0; }
.vid .vt {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  font-size: 14px; font-weight: 600; line-height: 1.29; color: var(--ink);
}
.vid .vm { margin-top: 3px; font-size: 12px; color: var(--ink-3); }
.mine { display: inline-block; margin-left: 6px; padding: 2px 7px; border-radius: var(--r-pill); background: var(--blue); color: #fff; font-size: 10px; line-height: 1.3; vertical-align: 1px; }
.pos-chips { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; }
.pos-chips span { padding: 2px 7px; border-radius: var(--r-pill); background: var(--bg); color: var(--ink-3); font-size: 10px; line-height: 1.3; }

/* biểu đồ */
.legend { display: flex; gap: 17px; margin-bottom: 10px; font-size: 12px; color: var(--ink-3); }
.legend i { display: inline-block; width: 14px; height: 2px; border-radius: 2px; vertical-align: 3px; margin-right: 5px; }
.legend .v i { background: var(--ink); }
.legend .s i { background: var(--blue); }
.legend .t i { background: repeating-linear-gradient(90deg, var(--blue) 0 5px, transparent 5px 8px); }
.chart { display: block; width: 100%; height: auto; }
.chart .ln { fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.chart .video { stroke: var(--ink); fill: var(--ink); }
.chart .shelf { stroke: var(--blue); fill: var(--blue); }
.chart .tab { stroke: var(--blue); fill: var(--card); }
.chart .ln.video, .chart .ln.shelf, .chart .ln.tab { fill: none; }
.chart .ln.tab { stroke-dasharray: 5 4; }
.chart circle.tab { stroke-width: 1.6; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart text { font-size: 10px; fill: var(--ink-3); }

/* bảng lịch sử */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 -24px; padding: 0 24px; }
.hist { width: 100%; min-width: 320px; border-collapse: collapse; font-size: 14px; }
.hist th { padding: 0 0 8px; text-align: left; font-size: 12px; font-weight: 600; color: var(--ink-3); }
.hist td { padding: 9px 0; border-top: 1px solid var(--line-soft); }

.menu { padding: 0; }
.menu-row {
  display: flex; flex-direction: column; align-items: flex-start; gap: 1px; width: 100%;
  padding: 13px 17px; text-align: left; cursor: pointer;
  border-top: 1px solid var(--line-soft); color: var(--blue); font-size: 17px;
}
.menu-row:first-child { border-top: 0; }
.menu-row:active { background: var(--bg); transform: none; }
.mr-sub { font-size: 12px; color: var(--ink-3); }

.danger-row { margin-top: 32px; text-align: center; }
.danger { padding: 12px; color: var(--bad); font-size: 14px; }

/* --------------------------------- kênh --------------------------------- */

.ch-stats { grid-template-columns: repeat(4, 1fr); }
.ch-stat[aria-pressed="true"] { border: 2px solid var(--blue-2); padding: 9px 5px 10px; }
.ch-stat.warn .v { color: var(--bad); }
.ch-list { display: flex; flex-direction: column; gap: 9px; }
.ch {
  display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; column-gap: 10px; align-items: center;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 11px 13px 12px;
}
.ch.busy { border-color: var(--blue); }
.ch.dead { border-color: var(--bad-line); }
.ch-ava {
  grid-column: 1; grid-row: 1 / span 2; width: 40px; height: 40px; border-radius: 50%; overflow: hidden;
  display: grid; place-items: center; background: var(--bg); color: var(--ink-3); font-weight: 600;
}
.ch-ava img { width: 100%; height: 100%; object-fit: cover; }
.ch.dead .ch-ava { filter: grayscale(1); opacity: 0.6; }
.ch-name { grid-column: 2; grid-row: 1; min-width: 0; display: flex; align-items: center; gap: 6px; font-size: 16px; font-weight: 600; line-height: 1.22; color: var(--ink); }
.ch-name .nm { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ch-meta { grid-column: 2; grid-row: 2; min-width: 0; margin-top: 1px; font-size: 12px; line-height: 1.35; color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ch-meta .sep { margin: 0 4px; }
.ch-check { grid-column: 3; grid-row: 1 / span 2; }
.badge { flex: 0 0 auto; padding: 2px 7px; border-radius: var(--r-pill); font-size: 10px; font-weight: 600; line-height: 1.3; }
.badge.live { background: #e7f4ea; color: var(--good); }
.badge.dead { background: #fce8e6; color: var(--bad); }
.badge.unk { background: var(--bg); color: var(--ink-3); }
.ch .chips { margin-top: 10px; }
a.chip { color: inherit; }
.ch-chip .ago { margin-left: auto; white-space: nowrap; font-size: 12px; color: var(--ink-3); }
.ago.fresh { color: var(--good); }
.ago.warn { color: var(--warn); }
.ago.stale { color: var(--bad); font-weight: 600; }
.ch-note { grid-column: 1 / -1; margin-top: 8px; font-size: 12px; line-height: 1.4; color: var(--ink-3); }
.ch-note b { color: var(--ink-2); font-weight: 600; }
.ch-note.dead b { color: var(--bad); }
.ch-remove { grid-column: 1 / -1; justify-self: start; margin-top: 6px; padding: 6px 0; font-size: 13px; color: var(--bad); }
.ch-add { margin-top: 0; }

/* -------------------------------- mở khoá -------------------------------- */

.login { min-height: 100svh; display: grid; place-items: center; padding: 24px; background: var(--bg); }
.login-card { width: 100%; max-width: 340px; text-align: center; }
.login-card h1 { font-size: 40px; line-height: 1.1; margin-bottom: 6px; }
.login-card p { color: var(--ink-3); font-size: 17px; margin: 0 0 24px; }
.pin-input {
  width: 100%; height: 48px; margin-bottom: 12px; padding-left: 8px; text-align: center;
  background: var(--card); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: var(--r-pill);
  font-size: 22px; letter-spacing: 8px;
}

/* --------------------------------- báo nhanh --------------------------------- */

.toast {
  position: fixed; left: 50%; bottom: calc(20px + env(safe-area-inset-bottom)); z-index: 120;
  transform: translateX(-50%); max-width: calc(100vw - 32px);
  padding: 12px 18px; border-radius: 22px;
  background: var(--ink); color: var(--on-dark); font-size: 14px; line-height: 1.35;
  animation: rise 0.2s ease;
}

/* ------------------------------ màn hình rộng ------------------------------ */

@media (min-width: 641px) {
  main, .sheet-body { padding: 32px 24px 64px; }
  .hero h2 { font-size: 40px; }
  .kw { padding: 13px 16px 14px; }
  .chip-row { margin: 0; padding: 2px 0; scroll-padding: 0; }
}

@media (min-width: 900px) {
  main { max-width: 1180px; }
  .top-bar, .sub-bar {
    padding-left: max(var(--gut), calc((100vw - 1180px) / 2 + 24px));
    padding-right: max(var(--gut), calc((100vw - 1180px) / 2 + 24px));
  }
  .list { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 10px; }
  .list .empty { grid-column: 1 / -1; }
  .chip-row { flex-wrap: wrap; overflow: visible; -webkit-mask-image: none; mask-image: none; }
  .chip-row::after { display: none; }
  .add-box, .foot-note { max-width: 640px; margin-left: auto; margin-right: auto; }
}

@media (max-width: 419px) {
  :root { --gut: 12px; }
  .hero h2 { font-size: 28px; }
  .kw { padding: 10px 11px 11px; }
  .stat .v { font-size: 20px; }
  .brand-sub { display: none; }
}

@media (max-width: 359px) {
  .btn-pill.sm { padding: 9px 13px; }
  .chip { padding: 5px 7px 6px; }
  .ck { font-size: 10px; }
}