/* Khung trưởng thành số – giao diện
   Bảng màu: mực xanh than của văn bản hành chính + xanh bảng phấn; 3 màu mức độ dùng nhất quán ở mọi nơi. */
:root {
  --paper: #F4F6F5;
  --surface: #FFFFFF;
  --ink: #17263A;
  --ink-2: #4A5868;
  --line: #D5DCD8;
  --board: #1F5C4A;
  --board-dark: #164536;
  --board-soft: #E4EEE9;
  --lv1: #B4232A;
  --lv1-soft: #F7E3E3;
  --lv2: #9A6200;
  --lv2-soft: #FAEED5;
  --lv3: #1F6B4F;
  --lv3-soft: #DDEFE5;
  --focus: #2B6CB0;
  --serif: "Literata", Georgia, serif;
  --sans: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --r-sm: 4px;
  --r-md: 8px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}
h1, h2, h3, h4, h5 { font-family: var(--serif); line-height: 1.25; margin: 0 0 .5em; font-weight: 600; }
h1 { font-size: clamp(1.9rem, 1.3rem + 2.2vw, 2.9rem); letter-spacing: -.01em; }
h2 { font-size: clamp(1.35rem, 1.15rem + .8vw, 1.75rem); }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.05rem; }
p { margin: 0 0 1em; }
a { color: var(--board); text-underline-offset: 2px; }
a:hover { color: var(--board-dark); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.muted { color: var(--ink-2); }
.small { font-size: .875rem; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.section { margin: 56px auto; }
.lede { font-size: 1.075rem; max-width: 64ch; color: var(--ink-2); }
.inline { display: inline; }
[hidden] { display: none !important; }

/* Header / footer */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--board); text-decoration: none; }
.brand span { font-family: var(--serif); font-weight: 600; font-size: 1.05rem; color: var(--ink); line-height: 1.2; }
.brand small { display: block; font-family: var(--sans); font-weight: 400; font-size: .78rem; color: var(--ink-2); }
.header-nav { display: flex; gap: 20px; align-items: center; font-size: .95rem; }
.link-btn { background: none; border: 0; padding: 0; color: var(--board); font: inherit; cursor: pointer; text-decoration: underline; text-underline-offset: 2px; }
.site-footer { border-top: 1px solid var(--line); margin-top: 72px; padding: 24px 0 40px; color: var(--ink-2); font-size: .85rem; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--r-md); border: 1px solid var(--line);
  background: var(--surface); color: var(--ink); font: 500 .95rem var(--sans);
  text-decoration: none; cursor: pointer;
}
.btn:hover { border-color: var(--ink-2); color: var(--ink); }
.btn-primary { background: var(--board); border-color: var(--board); color: #fff; }
.btn-primary:hover { background: var(--board-dark); border-color: var(--board-dark); color: #fff; }
.btn-ghost { background: transparent; }
.btn-danger { background: transparent; color: var(--lv1); border-color: var(--lv1-soft); }
.btn-danger:hover { border-color: var(--lv1); color: var(--lv1); }
.btn-lg { padding: 14px 26px; font-size: 1.05rem; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* Level colors */
.chip { display: inline-block; padding: 1px 9px; border-radius: 999px; font-size: .8rem; font-weight: 600; white-space: nowrap; background: var(--board-soft); color: var(--board); }
.chip.lv1 { background: var(--lv1-soft); color: var(--lv1); }
.chip.lv2 { background: var(--lv2-soft); color: var(--lv2); }
.chip.lv3 { background: var(--lv3-soft); color: var(--lv3); }
.lv-text.lv1, .level-title.lv1 { color: var(--lv1); }
.lv-text.lv2, .level-title.lv2 { color: var(--lv2); }
.lv-text.lv3, .level-title.lv3 { color: var(--lv3); }
.code { font-weight: 600; color: var(--board); font-variant-numeric: tabular-nums; margin-right: 4px; }

/* Zone chart – yếu tố nhận diện chính */
.zone-chart { margin: 0; }
.zone-chart svg { width: 100%; max-width: 420px; height: auto; display: block; margin: 0 auto; font-family: var(--sans); }
.zone-chart .z1 { fill: var(--lv1-soft); }
.zone-chart .z2 { fill: var(--lv2-soft); }
.zone-chart .z3 { fill: var(--lv3-soft); stroke: var(--lv3); stroke-width: 1; stroke-dasharray: 3 3; }
.zone-chart .zl { font-family: var(--serif); font-size: 14px; font-weight: 600; }
.zone-chart .zl1 { fill: var(--lv1); }
.zone-chart .zl2 { fill: var(--lv2); }
.zone-chart .zl3 { fill: var(--lv3); }
.zone-chart .tick { stroke: var(--ink-2); }
.zone-chart .tl { font-size: 10px; fill: var(--ink-2); }
.zone-chart .al { font-size: 11px; fill: var(--ink); font-weight: 500; }
.zone-chart .dot { fill: var(--ink); }
.zone-chart .dot-halo { fill: var(--ink); opacity: .15; }
.zone-chart .proj-line { stroke: var(--ink); stroke-width: 1.5; stroke-dasharray: 4 3; }
.zone-chart .arrow-head { fill: var(--ink); }
.zone-chart .proj-dot { fill: var(--surface); stroke: var(--ink); stroke-width: 2; }
.zone-chart figcaption { text-align: center; font-size: .85rem; color: var(--ink-2); margin-top: 8px; }
@media (prefers-reduced-motion: no-preference) {
  .zone-chart .dot-halo { animation: halo 2.4s ease-out 1; transform-box: fill-box; transform-origin: center; }
  @keyframes halo { 0% { transform: scale(.4); opacity: .5; } 100% { transform: scale(1); opacity: .15; } }
}

/* Landing */
.hero { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; padding-top: 56px; padding-bottom: 56px; }
.hero h1 { max-width: 18ch; }
.hero .btn { margin-top: 8px; }
.chart-note { font-size: .875rem; color: var(--ink-2); max-width: 42ch; margin: 12px auto 0; text-align: center; }
.band { background: var(--board); color: #E9F1ED; padding: 48px 0; }
.band h2 { color: #fff; }
.steps-row { list-style: none; counter-reset: s; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; padding: 0; margin: 24px 0 0; }
.steps-row li { counter-increment: s; position: relative; padding-top: 52px; }
.steps-row li::before { content: counter(s); position: absolute; top: 0; left: 0; font-family: var(--serif); font-size: 2.2rem; font-weight: 700; line-height: 1; color: #9CC7B4; }
.steps-row strong { display: block; color: #fff; font-size: 1.05rem; margin-bottom: 4px; }
.criteria-overview { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 56px; }
.weights { width: 100%; border-collapse: collapse; }
.weights th, .weights td { padding: 9px 0; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.weights th { width: 72px; color: var(--board); font-weight: 600; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.weights td.num { padding-left: 12px; }
.rules { margin-top: 56px; }
.rule-table { border-collapse: collapse; margin-bottom: 28px; max-width: 760px; width: 100%; }
.rule-table th, .rule-table td { text-align: left; padding: 12px 16px; vertical-align: top; }
.rule-table th { white-space: nowrap; font-weight: 600; }
.rule-table tr.lv1 { background: var(--lv1-soft); } .rule-table tr.lv1 th { color: var(--lv1); }
.rule-table tr.lv2 { background: var(--lv2-soft); } .rule-table tr.lv2 th { color: var(--lv2); }
.rule-table tr.lv3 { background: var(--lv3-soft); } .rule-table tr.lv3 th { color: var(--lv3); }

/* Survey */
.survey { display: grid; grid-template-columns: 240px 1fr; gap: 48px; padding-top: 40px; align-items: start; }
.rail { position: sticky; top: 20px; }
.rail-nav { display: flex; flex-direction: column; border-left: 2px solid var(--line); margin-bottom: 24px; }
.rail-nav a { display: flex; justify-content: space-between; gap: 8px; padding: 6px 0 6px 14px; color: var(--ink); text-decoration: none; font-size: .93rem; margin-left: -2px; border-left: 2px solid transparent; }
.rail-nav a:hover { border-left-color: var(--board); color: var(--board); }
.rail-nav span { color: var(--ink-2); font-variant-numeric: tabular-nums; }
.live-score { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 14px 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; }
.live-score span { display: block; font-size: .78rem; color: var(--ink-2); }
.live-score strong { font-family: var(--serif); font-size: 1.6rem; font-variant-numeric: tabular-nums; }
.live-level { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: 8px; }
.live-level strong { font-size: 1.05rem; }
.live-progress { grid-column: 1 / -1; font-size: .8rem; color: var(--ink-2); }
.live-progress b { color: var(--ink); font-variant-numeric: tabular-nums; }
.live-progress i { display: block; height: 4px; background: var(--line); border-radius: 2px; margin-top: 4px; overflow: hidden; }
.live-progress i b { display: block; height: 100%; width: 0; background: var(--board); transition: width .2s; }
@media (prefers-reduced-motion: reduce) { .live-progress i b { transition: none; } }
.survey-head { margin-bottom: 8px; }
.survey-section { padding: 36px 0; border-top: 1px solid var(--line); scroll-margin-top: 16px; }
.survey-head + .survey-section, .alert + .survey-section { border-top: 0; padding-top: 16px; }

.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: .92rem; font-weight: 500; }
.field b { color: var(--lv1); font-weight: 600; }
.field.span-2 { grid-column: 1 / -1; }
.field input, .field select, .field textarea, .filters input, .filters select, .copy-input {
  font: 400 1rem var(--sans); color: var(--ink); padding: 10px 12px;
  border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--surface); width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--board); outline: 2px solid var(--board-soft); }
.field.missing input, .field.missing select { border-color: var(--lv1); }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.pre-group { font-family: var(--sans); font-size: .95rem; font-weight: 600; color: var(--ink-2); margin: 20px 0 8px; }
.pre-item { border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); padding: 14px 18px; margin: 0 0 10px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.pre-item legend { float: left; padding: 0; max-width: 62ch; }
.pre-item.missing, .crit.missing { border-color: var(--lv1); box-shadow: 0 0 0 1px var(--lv1); }
.yn { display: flex; gap: 6px; flex-shrink: 0; }
.yn label, .seg label { position: relative; cursor: pointer; }
.yn input, .seg input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.yn span, .seg span { display: inline-block; padding: 7px 14px; border: 1px solid var(--line); border-radius: var(--r-sm); font-size: .9rem; background: var(--paper); white-space: nowrap; }
.yn input:checked + span, .seg input:checked + span { background: var(--board); border-color: var(--board); color: #fff; }
.yn input:focus-visible + span, .seg input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }

.crit { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 22px 22px 14px; margin: 18px 0; scroll-margin-top: 16px; }
.crit-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.crit-head h3 { margin: 0; flex: 1; min-width: 200px; }
.crit-code { font-weight: 600; color: var(--board); font-variant-numeric: tabular-nums; }
.crit-max { font-size: .85rem; color: var(--ink-2); white-space: nowrap; }
.crit-basis { font-size: .82rem; color: var(--ink-2); margin: 4px 0 16px; }

/* Ba mức như ba bậc thang: thẻ cao dần từ trái sang phải */
.levels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; align-items: end; }
.level { position: relative; display: flex; flex-direction: column; gap: 4px; padding: 14px 14px 16px; border: 1px solid var(--line); border-radius: var(--r-md); cursor: pointer; background: var(--paper); border-top-width: 4px; transition: background-color .15s, border-color .15s; }
.level:nth-child(1) { min-height: 150px; border-top-color: var(--lv1); }
.level:nth-child(2) { min-height: 170px; border-top-color: var(--lv2); }
.level:nth-child(3) { min-height: 190px; border-top-color: var(--lv3); }
.level input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.level-head { font-weight: 600; font-size: .92rem; }
.level.lv1 .level-head { color: var(--lv1); }
.level.lv2 .level-head { color: var(--lv2); }
.level.lv3 .level-head { color: var(--lv3); }
.level-range { font-size: .78rem; color: var(--ink-2); }
.level-desc { font-size: .88rem; line-height: 1.5; }
.level:hover { border-color: var(--ink-2); }
.level:has(input:checked) { background: var(--surface); border-color: currentColor; box-shadow: 0 0 0 2px currentColor; }
.level.lv1:has(input:checked) { color: var(--lv1); background: var(--lv1-soft); }
.level.lv2:has(input:checked) { color: var(--lv2); background: var(--lv2-soft); }
.level.lv3:has(input:checked) { color: var(--lv3); background: var(--lv3-soft); }
.level:has(input:checked) .level-desc, .level:has(input:checked) .level-range { color: var(--ink); }
.level:has(input:focus-visible) { outline: 3px solid var(--focus); outline-offset: 2px; }

.grade { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line); }
.grade-top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.grade-q { font-size: .9rem; color: var(--ink-2); }
.seg { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; max-width: 560px; }
.seg span { display: flex; align-items: center; justify-content: center; text-align: center; width: 100%; height: 100%; min-height: 44px; white-space: normal; line-height: 1.3; }
.grade-pts { font-family: var(--serif); font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }
.field-label { display: block; }
.evidence { margin-top: 4px; font-size: .88rem; }
.evidence summary { cursor: pointer; color: var(--board); padding: 10px 0; }
.evidence p { margin: 6px 0 4px; color: var(--ink-2); }
.submit-area { text-align: left; }
.form-error { color: var(--lv1); font-weight: 500; }

.alert { border-radius: var(--r-md); padding: 14px 18px; margin: 16px 0; border: 1px solid; }
.alert ul { margin: 6px 0 0; padding-left: 20px; }
.alert-error { background: var(--lv1-soft); border-color: #E7B8B8; color: #7A1419; }
.alert-ok { background: var(--lv3-soft); border-color: #B4D9C5; color: #13442F; }

/* Result */
.preview-bar { background: var(--lv2-soft); border-bottom: 1px solid #E8D29E; padding: 10px 0; font-size: .92rem; }
.result-hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; padding-top: 48px; }
.school { font-weight: 600; margin-bottom: 6px; }
.school span { display: block; font-weight: 400; color: var(--ink-2); font-size: .92rem; }
.level-title { font-size: clamp(2rem, 1.4rem + 2.6vw, 3.2rem); margin-bottom: 16px; }
.level-title.small-title { font-size: 1.3rem; margin-bottom: 6px; }
.big-scores { display: flex; gap: 40px; margin: 0 0 18px; }
.big-scores dt { font-size: .85rem; color: var(--ink-2); }
.big-scores dd { margin: 0; font-family: var(--serif); font-size: 2.4rem; font-weight: 600; line-height: 1.1; font-variant-numeric: tabular-nums; }
.big-scores small { font-size: 1rem; color: var(--ink-2); font-weight: 400; }
.reasons { padding-left: 20px; margin: 0 0 16px; }
.reasons li { margin-bottom: 4px; }
.note-box { margin-top: 40px; border-left: 4px solid var(--board); background: var(--board-soft); padding: 18px 22px; border-radius: 0 var(--r-md) var(--r-md) 0; }
.note-box h2 { font-size: 1.1rem; }
.note-box p { white-space: pre-line; margin: 0; }

.score-groups { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.score-group-head { display: flex; align-items: baseline; gap: 12px; border-bottom: 2px solid var(--ink); padding-bottom: 8px; }
.score-group-head h3 { margin: 0; flex: 1; }
.score-group-head .total { font-family: var(--serif); font-size: 1.5rem; font-weight: 600; }
.score-group-head .total small { font-size: .85rem; color: var(--ink-2); }
.score-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.score-table th, .score-table td { padding: 9px 6px 9px 0; border-bottom: 1px solid var(--line); vertical-align: middle; }
.score-table th { text-align: left; font-weight: 400; }
.bar-cell { width: 26%; }
.bar { display: block; height: 8px; background: #E7EBE9; border-radius: 4px; overflow: hidden; }
.bar-fill { display: block; height: 100%; }
.bar-fill.lv1 { background: var(--lv1); }
.bar-fill.lv2 { background: #C98A12; }
.bar-fill.lv3 { background: var(--lv3); }

.gaps { border-top: 2px solid var(--ink); }
.gap-row { display: grid; grid-template-columns: 1fr 1.3fr 1.3fr; gap: 24px; padding: 16px 0; border-bottom: 1px solid var(--line); font-size: .9rem; }
.gap-name { font-weight: 600; }
.gap-now p, .gap-next p { margin: 6px 0 0; }
.gap-now p { color: var(--ink-2); }
.more-gaps summary { cursor: pointer; color: var(--board); font-weight: 500; padding: 14px 0; min-height: 44px; }
.more-gaps[open] summary { border-bottom: 1px solid var(--line); }
.pending-plan { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 28px 30px; }

/* Plan */
.projection { border-collapse: collapse; width: 100%; max-width: 560px; margin: 24px 0; font-variant-numeric: tabular-nums; background: var(--surface); }
.projection caption { text-align: left; font-weight: 600; padding-bottom: 8px; }
.projection th, .projection td { border-bottom: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.projection thead th { font-weight: 600; font-size: .85rem; background: var(--paper); }
.projection tbody th { font-weight: 500; }
.projection th.num, .projection td.num { text-align: right; }
.projection tbody th small { color: var(--ink-2); font-weight: 400; margin-left: 6px; }
.projection tbody tr:last-child { background: var(--board-soft); }
.plan-tools { display: flex; gap: 20px; margin-top: 24px; font-size: .9rem; }
.routine { font-size: .92rem; background: var(--board-soft); padding: 12px 16px; border-radius: var(--r-md); }
.timeline { list-style: none; padding: 0; margin: 32px 0 0; }
.quarter { position: relative; padding: 0 0 40px 32px; border-left: 2px solid var(--board); margin-left: 8px; }
.quarter::before { content: ""; position: absolute; left: -9px; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: var(--board); border: 3px solid var(--paper); }
.quarter:last-child { border-left-color: transparent; }
.quarter-head { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: baseline; }
.quarter-head h3 { margin: 0; font-size: 1.35rem; }
.quarter-dates { color: var(--ink-2); font-size: .9rem; }
.milestone { border: 1px dashed var(--board); border-radius: var(--r-md); padding: 14px 18px; margin: 14px 0; background: var(--surface); }
.milestone h4 { margin-bottom: 6px; }
.milestone small, .month h5 small { color: var(--ink-2); font-family: var(--sans); font-weight: 400; }
.milestone ul, .month ul { margin: 0; padding-left: 18px; font-size: .9rem; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 18px 20px; margin: 14px 0; break-inside: avoid; }
.step-head { display: flex; gap: 8px 12px; align-items: baseline; flex-wrap: wrap; cursor: pointer; list-style: none; }
.step-head::-webkit-details-marker { display: none; }
.step-title { flex: 1; min-width: 200px; font-family: var(--serif); font-weight: 600; font-size: 1.05rem; }
.step-title::before { content: ""; display: inline-block; width: 7px; height: 7px; border-right: 2px solid var(--ink-2); border-bottom: 2px solid var(--ink-2); transform: rotate(-45deg); margin: 0 10px 2px 0; transition: transform .15s; }
.step[open] .step-title::before { transform: rotate(45deg); }
.step[open] .step-head { margin-bottom: 4px; }
.step-head:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; border-radius: 2px; }
.transition { font-size: .85rem; color: var(--ink-2); white-space: nowrap; }
.step-meta { font-size: .88rem; color: var(--ink-2); margin: 6px 0 12px; }
.months { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.month { border-top: 2px solid var(--board-soft); padding-top: 8px; }
.month h5 { font-size: .95rem; margin-bottom: 4px; }
.step-foot { margin-top: 12px; font-size: .88rem; }
.step-foot p { margin: 2px 0; }
.empty-note { color: var(--ink-2); font-style: italic; }
.backlog, .risks { margin-top: 40px; }
.backlog ul { padding-left: 20px; }
.risk-table { width: 100%; border-collapse: collapse; font-size: .88rem; background: var(--surface); }
.risk-table th, .risk-table td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.risk-table thead th { background: var(--paper); }

/* Admin */
.admin-page { padding-top: 32px; }
.admin-head { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; justify-content: space-between; margin-bottom: 12px; }
.admin-head h1 { margin: 0; font-size: 1.9rem; }
.status-counts { list-style: none; display: flex; gap: 18px; padding: 0; margin: 0; font-size: .92rem; }
.filters { display: flex; gap: 10px; margin: 16px 0 20px; flex-wrap: wrap; }
.filters input { flex: 1; min-width: 240px; }
.filters select { width: auto; }
.table-scroll { overflow-x: auto; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); }
.admin-table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.admin-table th, .admin-table td { padding: 10px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.admin-table thead th { background: var(--paper); font-weight: 600; }
.admin-table tr:last-child td { border-bottom: 0; }
.status { font-size: .82rem; font-weight: 600; padding: 2px 10px; border-radius: var(--r-sm); background: var(--paper); border: 1px solid var(--line); white-space: nowrap; }
.status.st-new { background: #E6EEF8; border-color: #C3D5EC; color: #1E4C80; }
.status.st-reviewing { background: var(--lv2-soft); border-color: #EAD3A0; color: var(--lv2); }
.status.st-sent { background: var(--lv3-soft); border-color: #B4D9C5; color: var(--lv3); }
.pager { display: flex; gap: 18px; margin-top: 14px; font-size: .9rem; color: var(--ink-2); }
.admin-grid { display: grid; grid-template-columns: 1fr 320px; gap: 24px; align-items: start; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 18px 20px; margin-bottom: 16px; }
.panel h2 { font-size: 1.15rem; }
.panel-head { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: baseline; }
.proj-live { font-size: .9rem; margin: 0; }
.checks { border: 0; padding: 0; margin: 0; }
.checks legend { padding: 0; margin-bottom: 6px; }
.checks label { display: flex; gap: 8px; align-items: center; font-weight: 400; }
.field .checks input, .checks input { width: auto; padding: 0; margin: 0; }
.q-title { font-family: var(--sans); font-size: .95rem; font-weight: 600; margin: 18px 0 6px; color: var(--ink-2); }
.step-picks { list-style: none; padding: 0; margin: 0; }
.step-picks li { border-bottom: 1px solid var(--line); }
.step-picks label { display: grid; grid-template-columns: 20px 1fr; gap: 10px; align-items: start; padding: 10px 0; cursor: pointer; font-size: .92rem; }
.step-picks input { width: 18px; height: 18px; margin: 2px 0 0; }
.pick-body { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 12px; }
.pick-title { flex: 1 1 260px; }
.pick-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; }
.nowrap { white-space: nowrap; }
.backlog-picks li { padding: 8px 0; font-size: .92rem; color: var(--ink-2); }
.action-bar { position: sticky; bottom: 0; background: var(--paper); padding: 14px 0; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; border-top: 1px solid var(--line); }
.action-bar p { flex-basis: 100%; margin: 0; }
.kv { display: grid; grid-template-columns: 100px 1fr; gap: 4px 10px; margin: 0; font-size: .9rem; }
.kv dt { color: var(--ink-2); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.small-h { font-family: var(--sans); font-size: .9rem; font-weight: 600; margin: 12px 0 4px; }
.pre-list, .log-list { list-style: none; padding: 0; margin: 0; font-size: .88rem; }
.pre-list li, .log-list li { padding: 4px 0; }
.pre-list .no, .log-list .no { color: var(--lv1); }
.copy-input { font-size: .85rem; margin-bottom: 6px; }
.admin-side form { margin-bottom: 8px; }
.login { max-width: 420px; padding-top: 64px; }
.login form { display: flex; flex-direction: column; gap: 14px; }

/* Responsive */
@media (max-width: 960px) {
  .hero, .result-hero, .criteria-overview, .score-groups, .admin-grid { grid-template-columns: 1fr; }
  .hero-chart, .result-chart { max-width: 420px; }
  .survey { grid-template-columns: 1fr; gap: 0; padding-top: 0; }
  .rail { position: sticky; top: 0; z-index: 5; background: var(--paper); padding: 8px 0; border-bottom: 1px solid var(--line); margin: 0 -20px; padding-left: 20px; padding-right: 20px; }
  .rail-nav { display: none; }
  /* Thanh điểm dính trên đầu: S1, S2, cấp độ ở dòng trên, tiến độ ở dòng dưới */
  .live-score { grid-template-columns: auto auto 1fr; gap: 2px 16px; border: 0; padding: 0; background: transparent; align-items: baseline; }
  .live-score strong { font-size: 1.25rem; }
  .live-score span { display: inline; margin-right: 4px; }
  .live-level { grid-column: auto; border-top: 0; padding-top: 0; text-align: right; }
  .live-level span { display: none; }
  .live-level strong { font-family: var(--sans); font-size: .9rem; }
  .live-progress { display: flex; align-items: center; gap: 10px; }
  .live-progress span { white-space: nowrap; margin: 0; }
  .live-progress i { flex: 1; margin: 0; }
  .crit, .survey-section, .pre-item { scroll-margin-top: 84px; }
  .survey-head { padding-top: 24px; }
  .gap-row { grid-template-columns: 1fr; gap: 8px; }
  .result-hero { gap: 24px; padding-top: 28px; }
  .hero { gap: 32px; padding-top: 32px; padding-bottom: 40px; }
  .hero-chart, .result-chart { width: 100%; margin: 0 auto; }
}
@media (max-width: 720px) {
  .wrap { padding: 0 16px; }
  .section { margin: 40px auto; }
  .header-row { min-height: 56px; padding-top: 8px; padding-bottom: 8px; }
  .header-nav { gap: 16px; font-size: .9rem; width: 100%; }

  /* Trang chủ */
  .steps-row { grid-template-columns: 1fr; gap: 20px; }
  .steps-row li { padding-top: 0; padding-left: 44px; }
  .steps-row li::before { font-size: 1.8rem; }
  .criteria-overview { gap: 32px; margin-top: 40px; }
  .rule-table th, .rule-table td { display: block; }
  .rule-table th { padding-bottom: 0; }
  .rule-table td { padding-top: 4px; }
  .hero .btn, .rules .btn { width: 100%; }

  /* Bảng hỏi */
  .rail { margin: 0 -16px; padding-left: 16px; padding-right: 16px; }
  .field-grid { grid-template-columns: 1fr; }
  .pre-item { flex-direction: column; align-items: stretch; padding: 14px; }
  .yn { display: grid; grid-template-columns: 1fr 1fr; }
  .yn span { display: flex; align-items: center; justify-content: center; min-height: 44px; width: 100%; }
  .crit { padding: 16px 14px 10px; }
  .crit-head { gap: 4px 10px; }
  .crit-head h3 { font-size: 1.1rem; min-width: 0; flex-basis: 100%; order: 2; }
  .crit-basis { margin-bottom: 12px; }
  .levels { grid-template-columns: 1fr; gap: 8px; }
  .level:nth-child(n) { min-height: 0; padding: 12px; }
  .seg { max-width: none; }
  .seg span { padding: 6px 8px; font-size: .85rem; }
  .submit-area .btn { width: 100%; }

  /* Kết quả */
  .big-scores { gap: 28px; }
  .big-scores dd { font-size: 2.1rem; }
  .result-text .btn { width: 100%; }
  .score-table tr { display: grid; grid-template-columns: 1fr auto auto; gap: 6px 12px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); }
  .score-table th { grid-column: 1 / -1; }
  .score-table th, .score-table td { border: 0; padding: 0; }
  .bar-cell { width: auto; }
  .months { grid-template-columns: 1fr; gap: 12px; }
  .timeline { margin-top: 20px; }
  .quarter { padding-left: 18px; margin-left: 6px; }
  .quarter-head h3 { font-size: 1.2rem; }
  .step { padding: 14px; }
  .step-title { min-width: 0; flex-basis: 100%; font-size: 1rem; }
  .milestone { padding: 12px 14px; }
  .projection { font-size: .92rem; }
  .projection th, .projection td { padding: 9px 8px; }
  .risk-table, .risk-table tbody, .risk-table tr, .risk-table th, .risk-table td { display: block; }
  .risk-table thead { display: none; }
  .risk-table tr { border: 1px solid var(--line); border-radius: var(--r-md); padding: 12px 14px; margin-bottom: 10px; background: var(--surface); }
  .risk-table th, .risk-table td { border: 0; padding: 0; }
  .risk-table th { font-size: 1rem; margin-bottom: 8px; }
  .risk-table td { margin-top: 8px; }
  .risk-table td::before { content: attr(data-label); display: block; font-weight: 600; font-size: .8rem; color: var(--ink-2); }

  /* Admin */
  .admin-head h1 { font-size: 1.5rem; }
  .filters select { flex: 1; }
  .table-scroll { background: transparent; border: 0; }
  .admin-table thead { display: none; }
  .admin-table, .admin-table tbody { display: block; }
  .admin-table tr { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 12px 14px; margin-bottom: 10px; }
  .admin-table td { display: block; padding: 0; border: 0; }
  .admin-table td:nth-child(2) { order: -2; flex-basis: 100%; }
  .admin-table td:nth-child(3) { order: -1; flex-basis: 100%; }
  .admin-table td:nth-child(1) { flex-basis: 100%; font-size: .85rem; color: var(--ink-2); }
  .admin-table td[data-label]::before { content: attr(data-label) " "; color: var(--ink-2); }
  .status-counts { flex-wrap: wrap; gap: 6px 16px; }
  .action-bar { position: static; }
  .action-bar .btn { flex: 1 1 calc(50% - 5px); }
  .action-bar .btn-primary { flex-basis: 100%; }
  .admin-page { padding-top: 20px; }
}

/* In / lưu PDF */
@media print {
  body { background: #fff; font-size: 11pt; }
  .site-header, .site-footer, .no-print, .preview-bar { display: none !important; }
  .wrap { max-width: none; padding: 0; }
  .section { margin: 24px 0; }
  .result-hero { grid-template-columns: 1.2fr 1fr; padding-top: 0; }
  .step, .milestone, .gap-row, .risk-table tr { break-inside: avoid; }
  .quarter { break-before: auto; }
  a { color: inherit; text-decoration: none; }
}