/* Cổng thông tin tư vấn học sinh – © 2026 Dr. Duyen Nguyen */
:root {
  --paper: #F8F7F8;
  --grid: #ECE6E7;
  --sheet: #FFFFFF;
  --ink: #A51C24;
  --ink-2: #C2272F;
  --ink-soft: #FBECEC;
  --gold: #F5B800;
  --gold-soft: #FFF4CF;
  --gold-deep: #7A5700;
  --text: #1F2233;
  --muted: #5B6078;
  --line: #D7DBEA;
  --ok: #1E7F52;
  --ok-soft: #E3F4EA;
  --warn: #A86400;
  --warn-soft: #FFF2DC;
  --bad: #B0362B;
  --bad-soft: #FCE7E4;
  --focus: #1D4ED8;
  --font: "Be Vietnam Pro", "Segoe UI", Roboto, Arial, sans-serif;
  --hand: "Patrick Hand", "Comic Sans MS", cursive;
  --r-s: 6px; --r-m: 10px; --r-l: 16px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); color: var(--text); font-size: 16px; line-height: 1.55;
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
  min-height: 100vh; display: flex; flex-direction: column;
}
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.9rem, 4vw, 2.75rem); font-weight: 800; }
h2 { font-size: 1.6rem; font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; }
h4 { font-size: 1rem; font-weight: 700; }
p { margin: 0 0 .8em; max-width: 72ch; }
a { color: var(--ink); }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; top: 8px; }

/* ---------- Top bar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 20px; background: var(--sheet); border-bottom: 3px solid var(--ink); box-shadow: 0 3px 0 var(--gold);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; background: none; border: 0; padding: 0; cursor: pointer; text-align: left; }
.brand-mark { display: grid; grid-template-columns: repeat(3, 9px); gap: 2px; }
.brand-mark span { width: 9px; height: 9px; border: 1.5px solid var(--ink); border-radius: 2px; }
.brand-mark span.on { background: var(--gold); border-color: var(--ink); }
.brand-text strong { display: block; color: var(--ink); font-size: 1.05rem; font-weight: 800; }
.brand-text small { display: block; color: var(--muted); font-size: .8rem; }
.topbar-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.role-pill { background: var(--ink-soft); color: var(--ink); border-radius: 999px; padding: 3px 12px; font-size: .85rem; font-weight: 600; }
.demo-tag { font-family: var(--hand); font-size: 1.1rem; color: var(--gold-deep); background: var(--gold-soft); transform: rotate(-3deg); display: inline-block; border: 1.5px solid var(--gold); border-radius: 6px; padding: 0 8px; }

/* ---------- Layout ---------- */
.layout { flex: 1; display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 0; max-width: 1280px; width: 100%; margin: 0 auto; }
.main { padding: 28px 28px 120px; min-width: 0; }
.main:focus { outline: none; }

/* ---------- Stepper (thời khoá biểu) ---------- */
.steps { padding: 28px 0 28px 20px; }
.steps ol { list-style: none; margin: 0; padding: 0; position: sticky; top: 84px; }
.steps li + li { margin-top: 4px; }
.step-btn {
  width: 100%; display: grid; grid-template-columns: 34px 1fr; gap: 10px; align-items: center;
  padding: 9px 10px; border: 1.5px solid transparent; border-radius: var(--r-m);
  background: transparent; cursor: pointer; text-align: left; color: var(--text);
}
.step-btn:hover { background: var(--sheet); border-color: var(--line); }
.step-num {
  width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%;
  border: 2px solid var(--ink); color: var(--ink); font-weight: 800; background: var(--sheet);
}
.step-label { font-size: .92rem; font-weight: 600; line-height: 1.3; }
.step-label small { display: block; font-weight: 400; color: var(--muted); font-size: .78rem; }
.step-btn.done .step-num { background: var(--ink); color: #fff; }
.step-btn.current { background: var(--sheet); border-color: var(--ink); box-shadow: 4px 4px 0 var(--gold); }
.step-num { position: relative; }
.step-done { position: absolute; right: -6px; bottom: -4px; width: 17px; height: 17px; border-radius: 50%; background: var(--ok); color: #fff; font-size: .66rem; display: grid; place-items: center; border: 2px solid var(--sheet); }

/* ---------- Sheet & blocks ---------- */
.sheet { background: var(--sheet); border: 1.5px solid var(--line); border-radius: var(--r-l); padding: 28px; }
.sheet + .sheet { margin-top: 20px; }
.step-head { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 18px; }
.step-head .big-num { flex: none; width: 56px; height: 56px; border-radius: 50%; background: var(--ink); color: #fff; display: grid; place-items: center; font-size: 1.6rem; font-weight: 800; box-shadow: 0 0 0 4px var(--gold); }
.step-head p { color: var(--muted); margin: 0; }
.lead { font-size: 1.08rem; color: var(--muted); }
.hand { font-family: var(--hand); color: var(--ink); font-size: 1.2rem; line-height: 1.3; }
.margin-note { border-left: 3px solid var(--ink); padding: 4px 0 4px 14px; margin: 14px 0; }
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.spacer { flex: 1; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
hr.rule { border: 0; border-top: 1.5px dashed var(--line); margin: 22px 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--ink); color: #fff; border: 2px solid var(--ink); border-radius: var(--r-s);
  padding: 9px 18px; font-weight: 700; cursor: pointer; text-decoration: none; line-height: 1.2;
}
.btn:hover { background: var(--ink-2); border-color: var(--ink-2); }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink-soft); }
.btn.small { padding: 5px 12px; font-size: .88rem; }
.btn.ok { background: var(--ok); border-color: var(--ok); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.icon-btn { background: none; border: 0; font-size: 1.6rem; line-height: 1; cursor: pointer; color: var(--muted); padding: 2px 8px; border-radius: 6px; }
.icon-btn:hover { background: var(--ink-soft); color: var(--ink); }
.nav-row { display: flex; justify-content: space-between; gap: 12px; margin-top: 24px; flex-wrap: wrap; }

/* ---------- Forms ---------- */
.field { display: flex; flex-direction: column; gap: 4px; }
.field label, .field .label { font-weight: 600; font-size: .92rem; }
.field .hint { font-size: .82rem; color: var(--muted); }
input[type=text], input[type=number], select, textarea {
  border: 1.5px solid var(--line); border-radius: var(--r-s); padding: 8px 10px; background: #fff; width: 100%;
}
input:focus, select:focus, textarea:focus { border-color: var(--ink); outline: none; box-shadow: 0 0 0 3px var(--ink-soft); }
textarea { min-height: 70px; resize: vertical; }
fieldset { border: 1.5px solid var(--line); border-radius: var(--r-m); padding: 14px 16px 16px; margin: 0 0 16px; }
legend { font-weight: 700; padding: 0 6px; color: var(--ink); }
.grades { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 10px 16px; }
.grades .field { flex-direction: row; align-items: center; justify-content: space-between; gap: 8px; }
.grades .field label { font-weight: 500; font-size: .9rem; }
.grades input { width: 76px; text-align: center; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1.5px solid var(--line); background: #fff; border-radius: 999px; padding: 5px 12px; cursor: pointer; font-size: .9rem;
}
.chip[aria-pressed=true] { background: var(--ink); color: #fff; border-color: var(--ink); }
.chip.bad[aria-pressed=true] { background: var(--bad); border-color: var(--bad); }

/* ---------- Bảng 9 môn (điểm nhấn) ---------- */
.board { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.tile {
  --c: var(--ink);
  position: relative; min-height: 78px; border: 2px solid var(--c); border-radius: var(--r-s);
  background: #fff; color: var(--text); padding: 10px 12px 10px 18px; text-align: left; cursor: pointer;
  display: flex; flex-direction: column; justify-content: space-between; font-weight: 700;
}
.tile::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 8px; background: var(--c); }
.tile small { font-weight: 500; color: var(--muted); font-size: .76rem; }
.tile[aria-pressed=true] { background: var(--c); color: #fff; }
.tile[aria-pressed=true] small { color: rgba(255,255,255,.85); }
.tile[aria-pressed=true]::after {
  content: "✓"; position: absolute; right: 10px; top: 8px; width: 24px; height: 24px; border-radius: 50%;
  background: #fff; color: var(--c); display: grid; place-items: center; font-size: .85rem;
}
.tile:disabled { opacity: .35; cursor: not-allowed; }
.tiles-inline { display: flex; gap: 6px; flex-wrap: wrap; }
.mini-tile { --c: var(--ink); border: 1.5px solid var(--c); border-left: 6px solid var(--c); border-radius: 4px; padding: 2px 8px; font-size: .85rem; font-weight: 700; background: #fff; }
.mini-cd { border: 1.5px dashed var(--muted); border-radius: 4px; padding: 2px 8px; font-size: .82rem; color: var(--muted); }

/* ---------- Hero (trang đầu) ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 32px; align-items: start; }
.hero h1 { color: var(--ink); max-width: 14ch; }
.hero .board { margin-top: 4px; }
.doors { margin-top: 16px; min-height: 120px; }
.doors h4 { margin-bottom: 8px; }
.door-list { display: flex; flex-wrap: wrap; gap: 6px; }
.door { border: 1.5px solid var(--ok); background: var(--ok-soft); color: var(--ok); border-radius: 6px; padding: 3px 9px; font-size: .85rem; font-weight: 600; }
.role-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 18px 0 10px; }
.role-card {
  border: 2px solid var(--line); border-radius: var(--r-m); background: #fff; padding: 14px; text-align: left; cursor: pointer;
}
.role-card strong { display: block; color: var(--ink); font-size: 1.05rem; }
.role-card span { font-size: .85rem; color: var(--muted); }
.role-card:hover, .role-card[aria-pressed=true] { border-color: var(--ink); box-shadow: 4px 4px 0 var(--gold); }
.rules-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 8px; }
.rules-strip div { border-top: 4px solid var(--gold); padding-top: 10px; }
.rules-strip b { display: block; font-size: 1.6rem; color: var(--ink); line-height: 1.1; }

/* ---------- Trắc nghiệm ---------- */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; border-bottom: 2px solid var(--line); margin-bottom: 18px; }
.tab { border: 0; background: none; padding: 10px 14px; font-weight: 700; color: var(--muted); cursor: pointer; border-bottom: 3px solid transparent; margin-bottom: -2px; }
.tab[aria-selected=true] { color: var(--ink); border-bottom-color: var(--ink); }
.tab .count { font-weight: 500; font-size: .8rem; margin-left: 4px; }
.q-group { margin-bottom: 22px; }
.q-group h4 { color: var(--ink); }
.q { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 16px; align-items: center; padding: 8px 0; border-bottom: 1px dashed var(--line); }
.q-text { font-size: .95rem; }
.scale { display: flex; gap: 4px; }
.scale button {
  min-width: 38px; height: 34px; border: 1.5px solid var(--line); background: #fff; border-radius: 6px; cursor: pointer; font-weight: 700;
}
.scale button[aria-pressed=true] { background: var(--ink); color: #fff; border-color: var(--ink); }
.ab { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 8px 0; border-bottom: 1px dashed var(--line); }
.ab button { border: 1.5px solid var(--line); background: #fff; border-radius: 8px; padding: 9px 12px; text-align: left; cursor: pointer; font-size: .93rem; }
.ab button[aria-pressed=true] { border-color: var(--ink); background: var(--ink-soft); font-weight: 600; }
.scale-legend { font-size: .82rem; color: var(--muted); margin-bottom: 10px; }
.scale.yn button { min-width: 64px; padding: 0 10px; }
.mb-q .q-text { margin: 14px 0 0; }
.mb-q .ab { padding-top: 6px; }
.ey-chart { margin: 8px 0 12px; }
.ey-chart svg { display: block; width: 100%; max-width: 360px; height: auto; }
.ey-ring { fill: none; stroke: var(--line); stroke-width: 1.5; }
.ey-ax { stroke: var(--muted); stroke-width: 1; }
.ey-lab { font-size: 11px; fill: var(--muted); }
.ey-q { font-size: 12px; font-weight: 700; fill: var(--muted); text-anchor: middle; }
.ey-q.on { fill: var(--ink); font-size: 13px; }
.ey-pt { fill: var(--ink); stroke: #fff; stroke-width: 2; }
.progress { height: 8px; background: var(--ink-soft); border-radius: 99px; overflow: hidden; margin: 6px 0 16px; }
.progress span { display: block; height: 100%; background: var(--ink); }

/* ---------- Kết quả / thanh điểm ---------- */
.bars { display: grid; gap: 8px; }
.bar { display: grid; grid-template-columns: 170px minmax(0, 1fr) 54px; gap: 10px; align-items: center; font-size: .9rem; }
.bar-track { height: 14px; background: var(--ink-soft); border-radius: 3px; overflow: hidden; }
.bar-fill { display: block; height: 100%; background: var(--ink); }
.bar-val { text-align: right; font-weight: 700; font-variant-numeric: tabular-nums; }
.code-big { font-size: 2.6rem; font-weight: 800; color: var(--ink); letter-spacing: .08em; }

.callout { border-radius: var(--r-m); padding: 12px 16px; margin: 12px 0; border: 1.5px solid; }
.callout p:last-child { margin-bottom: 0; }
.callout.ok { background: var(--ok-soft); border-color: var(--ok); }
.callout.warn { background: var(--warn-soft); border-color: var(--warn); }
.callout.bad { background: var(--bad-soft); border-color: var(--bad); }
.callout.info { background: var(--ink-soft); border-color: var(--ink); }

table.t { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.t th, table.t td { border-bottom: 1px solid var(--line); padding: 8px 8px; text-align: left; vertical-align: top; }
table.t th { color: var(--ink); font-size: .85rem; background: var(--ink-soft); }
.table-wrap { overflow-x: auto; }

/* ---------- Thẻ ngành / phương án ---------- */
.career { border: 1.5px solid var(--line); border-radius: var(--r-m); padding: 14px 16px; background: #fff; }
.career + .career { margin-top: 10px; }
.career-top { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.career-top h4 { margin: 0; }
.fit { font-weight: 800; color: var(--ink); font-variant-numeric: tabular-nums; }
.tag { display: inline-block; font-size: .78rem; border-radius: 4px; padding: 1px 7px; background: var(--ink-soft); color: var(--ink); font-weight: 600; margin-right: 4px; }
.fb { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.fb button { border: 1.5px solid var(--line); background: #fff; border-radius: 6px; padding: 4px 10px; cursor: pointer; font-size: .85rem; }
.fb button[aria-pressed=true].like { background: var(--ok); color: #fff; border-color: var(--ok); }
.fb button[aria-pressed=true].maybe { background: var(--warn); color: #fff; border-color: var(--warn); }
.fb button[aria-pressed=true].no { background: var(--muted); color: #fff; border-color: var(--muted); }

.plan { border: 2px solid var(--line); border-radius: var(--r-l); padding: 18px; background: #fff; }
.plan + .plan { margin-top: 14px; }
.plan.top { border-color: var(--ink); box-shadow: 5px 5px 0 var(--gold); }
.plan-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 10px; }
.plan-rank { font-family: var(--hand); font-size: 1.35rem; color: var(--ink); }
.score-ring { font-size: 1.5rem; font-weight: 800; color: var(--ink); font-variant-numeric: tabular-nums; }
.score-ring small { font-size: .8rem; color: var(--muted); font-weight: 500; }
.crit { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; margin: 10px 0; }
.crit div { background: var(--paper); border-radius: 6px; padding: 6px 8px; font-size: .78rem; color: var(--muted); }
.crit b { display: block; font-size: 1rem; color: var(--text); font-variant-numeric: tabular-nums; }
.plan-cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 20px; font-size: .9rem; }
.plan-cols h5 { margin: 6px 0 4px; font-size: .85rem; color: var(--ink); }
.plan-cols ul { margin: 0; padding-left: 18px; }
.check { color: var(--ok); font-weight: 700; }
.cross { color: var(--bad); font-weight: 700; }

.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { display: flex; gap: 10px; align-items: flex-start; padding: 9px 0; border-bottom: 1px dashed var(--line); }
.checklist input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--ink); }
.auto-flag { font-size: .78rem; border-radius: 4px; padding: 1px 6px; margin-left: 6px; }
.auto-flag.y { background: var(--ok-soft); color: #186B44; } /* đậm hơn --ok để đạt tương phản 4.5:1 trên nền nhạt */
.auto-flag.n { background: var(--bad-soft); color: var(--bad); }

.code-box { font-family: Consolas, "Courier New", monospace; font-size: .8rem; background: var(--paper); border: 1.5px dashed var(--line); border-radius: 8px; padding: 10px; word-break: break-all; max-height: 160px; overflow: auto; white-space: pre-wrap; }

/* ---------- Phiếu in ---------- */
.summary-doc { border: 1.5px solid var(--text); padding: 22px 24px; border-radius: 4px; background: #fff; }
.summary-doc h3 { border-bottom: 2px solid var(--text); padding-bottom: 6px; }
.summary-doc h4 { margin-top: 14px; color: var(--ink); }
.summary-doc ul { margin: 4px 0; padding-left: 20px; }
.sign-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 28px; text-align: center; font-size: .9rem; }
.sign-row div { min-height: 70px; }

/* ---------- Chat ---------- */
.chat-fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 40; display: flex; align-items: center; gap: 10px;
  background: var(--ink); color: #fff; border: 0; border-radius: 999px; padding: 13px 20px; font-weight: 700; cursor: pointer;
  box-shadow: 0 6px 18px rgba(165, 28, 36, .35);
}
/* Nút mở sơ đồ triển khai: nhỏ, mờ, góc trái – không tranh chú ý với nội dung */
.diagram-fab {
  position: fixed; left: 14px; bottom: 14px; z-index: 39; width: 32px; height: 32px; display: grid; place-items: center;
  background: #fff; color: var(--muted); border: 1.5px solid var(--line); border-radius: 50%; cursor: pointer; opacity: .55;
  transition: opacity .15s, color .15s, border-color .15s;
}
.diagram-fab svg { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linejoin: round; }
.diagram-fab:hover, .diagram-fab:focus-visible { opacity: 1; color: var(--ink); border-color: var(--ink); }
.diagram-dialog { width: min(1180px, calc(100vw - 24px)); height: calc(100vh - 24px); max-width: none; max-height: none; padding: 0;
  border: 2px solid var(--ink); border-radius: var(--r-l); overflow: hidden; }
.diagram-dialog[open] { display: flex; flex-direction: column; }
.diagram-dialog::backdrop { background: rgba(31, 34, 51, .45); }
.diagram-head { display: flex; align-items: center; gap: 14px; padding: 8px 10px 8px 16px; background: var(--ink); color: #fff; border-bottom: 3px solid var(--gold); }
.diagram-head strong { flex: 1; }
.diagram-head a { color: #fff; font-size: .88rem; }
.diagram-head .icon-btn { color: #fff; }
.diagram-head .icon-btn:hover { background: rgba(255,255,255,.15); color: #fff; }
.diagram-dialog iframe { flex: 1; width: 100%; border: 0; background: #FAF7F7; }
.chat-fab-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 3px rgba(245,184,0,.35); }
.chat-panel {
  position: fixed; right: 20px; bottom: 20px; z-index: 41; width: min(400px, calc(100vw - 32px)); height: min(620px, calc(100vh - 100px));
  background: #fff; border: 2px solid var(--ink); border-radius: var(--r-l); display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 8px 8px 0 var(--gold);
}
.chat-panel[hidden] { display: none; }
.chat-head { display: flex; justify-content: space-between; align-items: flex-start; padding: 12px 14px; background: var(--ink); color: #fff; border-bottom: 3px solid var(--gold); }
.chat-tg { display: block; padding: 8px 14px; background: var(--gold-soft); color: var(--gold-deep); font-weight: 700; font-size: .88rem; text-decoration: none; border-bottom: 1px solid var(--gold); }
.chat-tg:hover { background: var(--gold); color: var(--text); }
.chat-tg[hidden] { display: none; }
.chat-head small { display: block; opacity: .85; font-size: .78rem; }
.chat-head .icon-btn { color: #fff; }
.chat-head .icon-btn:hover { background: rgba(255,255,255,.15); color: #fff; }
.chat-log { flex: 1; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 10px;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 24px 24px; }
.msg { max-width: 88%; padding: 9px 12px; border-radius: 12px; font-size: .92rem; white-space: pre-wrap; }
.msg.bot { background: #fff; border: 1.5px solid var(--line); align-self: flex-start; border-bottom-left-radius: 3px; }
.msg.user { background: var(--ink); color: #fff; align-self: flex-end; border-bottom-right-radius: 3px; }
.msg.alert { background: var(--bad-soft); border-color: var(--bad); }
.msg.typing { color: var(--muted); font-style: italic; }
.chat-chips { display: flex; gap: 6px; flex-wrap: wrap; padding: 8px 12px 0; border-top: 1px solid var(--line); }
.chat-chips button { border: 1.5px solid var(--line); background: #fff; border-radius: 999px; padding: 3px 10px; font-size: .8rem; cursor: pointer; }
.chat-chips button:hover { border-color: var(--ink); color: var(--ink); }
.chat-form { display: flex; gap: 8px; padding: 10px 12px 12px; }
.chat-form input { flex: 1; }

/* ---------- Dialog & toast ---------- */
.dialog { border: 2px solid var(--ink); border-radius: var(--r-l); padding: 0; max-width: min(640px, calc(100vw - 32px)); width: 100%; }
.dialog::backdrop { background: rgba(31, 34, 51, .45); }
.dialog-inner { padding: 22px 24px; }
.dialog-inner textarea { min-height: 120px; font-family: Consolas, monospace; font-size: .82rem; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px); background: var(--text); color: #fff; padding: 10px 18px; border-radius: 8px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 60; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Footer ---------- */
.footer { border-top: 3px solid var(--ink); box-shadow: inset 0 3px 0 var(--gold); background: var(--sheet); padding: 22px 20px 20px; font-size: .88rem; }
.footer-inner { max-width: 1280px; margin: 0 auto; display: flex; justify-content: space-between; align-items: flex-end; gap: 16px 32px; flex-wrap: wrap; }
.footer-brand strong { display: block; color: var(--ink); font-size: 1rem; font-weight: 800; }
.footer-brand span { color: var(--muted); }
.footer-copy { text-align: right; }
.footer-copy strong { display: block; font-weight: 700; }
.footer-copy span { color: var(--muted); }
.footer-note { max-width: 1280px; margin: 14px auto 0; padding-top: 12px; border-top: 1px dashed var(--line); color: var(--muted); font-size: .8rem; text-align: center; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
  .steps { padding: 12px 16px 0; overflow-x: auto; }
  .steps ol { display: flex; gap: 6px; position: static; }
  .steps li + li { margin-top: 0; }
  .step-btn { grid-template-columns: 30px auto; white-space: nowrap; padding: 6px 10px; }
  .step-num { width: 30px; height: 30px; font-size: .9rem; }
  .step-label small { display: none; }
  .main { padding: 16px 16px 110px; }
  .hero { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .sheet { padding: 18px 16px; }
  .grid-2, .role-cards, .rules-strip, .plan-cols { grid-template-columns: 1fr; }
  .crit { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .q { grid-template-columns: 1fr; }
  .ab { grid-template-columns: 1fr; }
  .bar { grid-template-columns: 110px minmax(0,1fr) 44px; }
  .topbar { padding: 8px 12px; }
  .brand-text small { display: none; }
  .chat-fab { right: 12px; bottom: 12px; padding: 11px 16px; }
  .chat-panel { right: 8px; bottom: 8px; }
  .sign-row { grid-template-columns: 1fr; }
  .footer { padding-bottom: 84px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-copy { text-align: left; }
  .board { gap: 6px; }
  .tile { min-height: 64px; padding: 8px 8px 8px 14px; font-size: .9rem; }
  .tile::before { width: 6px; }
  .tile[aria-pressed=true]::after { width: 18px; height: 18px; right: 6px; top: 6px; font-size: .7rem; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* ---------- In phiếu ---------- */
@media print {
  body { background: #fff; }
  .topbar, .steps, .chat-fab, .chat-panel, .diagram-fab, .nav-row, .no-print, .footer { display: none !important; }
  .layout { display: block; }
  .main { padding: 0; }
  .sheet { border: 0; padding: 0; }
  .footer { border: 0; }
}

/* ---------- Bổ sung: truy vết, sơ đồ, lưu hồ sơ, thang mô tả ---------- */
.crit.crit-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
details.why { margin: 10px 0 4px; border-top: 1px dashed var(--line); padding-top: 8px; }
details.why > summary, details.excluded > summary { cursor: pointer; font-weight: 600; color: var(--ink); font-size: .9rem; }
.why-t td, .why-t th { font-size: .84rem; vertical-align: top; }
.why-t .num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.why-t .neg { color: var(--bad); font-weight: 700; }
.why-t tr.tot td { font-weight: 800; border-top: 2px solid var(--ink); }
.why-notes { margin: 6px 0 0; color: var(--warn); }
.diagram { margin: 0 0 18px; padding: 12px; border: 1.5px solid var(--line); border-radius: var(--r-m); background: var(--paper); }
.diagram figcaption { margin-bottom: 6px; }
.diagram .lk { fill: none; stroke: var(--ink-2); stroke-opacity: .35; }
.diagram .lk2 { fill: none; stroke: var(--gold); stroke-opacity: .7; }
.diagram .nd { fill: var(--ink); }
.diagram .nd2 { fill: var(--gold); stroke: var(--gold-deep); }
.diagram .tx { font-size: 12px; fill: var(--text); font-family: inherit; }
.diagram .tx-g { font-weight: 700; fill: var(--ink); font-size: 11.5px; }
details.excluded { margin-top: 14px; padding: 10px 14px; border: 1.5px dashed var(--line); border-radius: var(--r-m); }
ul.plain { list-style: none; padding: 0; margin: 8px 0; }
.nowrap { white-space: nowrap; }
.save-bar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; padding: 12px 16px; margin-bottom: 16px; border: 1.5px solid var(--ink); border-radius: var(--r-m); background: var(--gold-soft); }
.save-bar > div:first-child { display: flex; flex-direction: column; }
.rubric { display: grid; gap: 6px; }
.rub { display: flex; gap: 10px; align-items: flex-start; padding: 8px 10px; border: 1.5px solid var(--line); border-radius: var(--r-m); cursor: pointer; background: var(--sheet); }
.rub:hover { border-color: var(--ink); }
.rub input { margin-top: 4px; accent-color: var(--ink); }
.rub b { display: block; font-size: .9rem; }
.rub small { display: block; color: var(--muted); font-size: .8rem; line-height: 1.35; }
.rub:has(input:checked) { border-color: var(--ink); background: var(--ink-soft); }
.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; }
@media (max-width: 640px) { .crit.crit-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---------- Bước 3: nhóm ngành phù hợp · Bước 4: ô nhập tổ hợp của trường ---------- */
.group-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; margin: 8px 0 16px; }
.group-card { display: flex; flex-direction: column; gap: 3px; border: 2px solid var(--line); border-radius: var(--r-m); background: #fff; padding: 12px 14px; text-align: left; cursor: pointer; font: inherit; color: var(--text); }
.group-card strong { color: var(--ink); }
.group-card:hover, .group-card[aria-pressed=true] { border-color: var(--ink); box-shadow: 4px 4px 0 var(--gold); }
details.school-entry { margin-top: 14px; padding: 12px 14px; border: 1.5px dashed var(--ink); border-radius: var(--r-m); background: #fff; }
details.school-entry > summary { cursor: pointer; font-weight: 700; color: var(--ink); }
details.school-entry[open] > summary { margin-bottom: 8px; }

/* ===== Khảo sát tại nhà (mở bằng link mời ?moi=) ===== */
.home-mode [data-action="save-profile"],
.home-mode [data-action="open-profile-code"],
.home-mode #teacherBtn,
.home-mode .diagram-fab { display: none !important; }
.consent-list { margin: 8px 0 0; padding-left: 20px; }
.consent-list li { margin: 6px 0; }
.check-row { display: flex; gap: 10px; align-items: flex-start; margin: 10px 0; line-height: 1.5; cursor: pointer; }
.check-row input { width: 20px; height: 20px; margin-top: 2px; flex: 0 0 auto; }
input[readonly] { background: var(--paper); color: inherit; opacity: .85; }