/* IEO Cambodia exam UI
   Layout: navy IEO header band over a sandstone-paper workspace; Khmer kbach band marks every section edge. */
:root {
  --ink: #1B2241;          /* IEO navy */
  --ink-2: #272D4B;
  --ink-3: #3D435D;
  --gold: #F5C791;         /* IEO gold */
  --gold-deep: #B9793A;    /* laterite / sandstone */
  --paper: #FBF6EE;        /* page ground, warm like Angkor sandstone */
  --card: #FFFFFF;
  --line: #E7DCCB;
  --text: #1B2241;
  --muted: #5E6480;
  --kh-red: #D2102C;       /* Cambodian flag red, used sparingly */
  --kh-blue: #032EA1;      /* Cambodian flag blue */
  --ok: #1F7A4D;
  --ok-bg: #E4F3EA;
  --bad: #B3261E;
  --bad-bg: #FBE7E5;
  --warn: #9A5B00;
  --warn-bg: #FFF1D9;
  --focus: #032EA1;
  --sel: #1B2241;
  --on-sel: #F5C791;
  --on-ink: #FFF8F0;
  --shadow: 0 1px 2px rgba(27, 34, 65, .06), 0 8px 24px rgba(27, 34, 65, .06);
  --display: "Bebas Neue", "Oswald", Impact, "Arial Narrow", sans-serif;
  --body: "Golos Text", "Kantumruy Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --khmer: "Kantumruy Pro", "Noto Sans Khmer", "Khmer OS", sans-serif;
  --khmer-display: "Moul", "Kantumruy Pro", "Khmer OS Muol", serif;
  --r: 10px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #12172E; --card: #232A4D; --line: #2F3656; --text: #F3EEE6; --muted: #A9AECB;
    --ok: #6FD39E; --ok-bg: #173A2C; --bad: #FF8A80; --bad-bg: #40202A; --warn: #FFC56B; --warn-bg: #3A2D16;
    --focus: #F5C791; --sel: #F5C791; --on-sel: #1B2241; --kh-blue: #8FA8FF; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #12172E; --card: #232A4D; --line: #2F3656; --text: #F3EEE6; --muted: #A9AECB;
  --ok: #6FD39E; --ok-bg: #173A2C; --bad: #FF8A80; --bad-bg: #40202A; --warn: #FFC56B; --warn-bg: #3A2D16;
  --focus: #F5C791; --sel: #F5C791; --on-sel: #1B2241; --kh-blue: #8FA8FF; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25); color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--paper); color: var(--text); font: 16px/1.55 var(--body); -webkit-font-smoothing: antialiased; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
[hidden] { display: none !important; }
.km { font-family: var(--khmer); }
.km-d { font-family: var(--khmer-display); font-weight: 400; line-height: 1.9; }
.num { font-variant-numeric: tabular-nums; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding-inline: 20px; }
@media (max-width: 480px) { .wrap { padding-inline: 16px; } }

/* ---------- Kbach band: repeating flame/lotus motif ---------- */
.kbach {
  height: 14px;
  background-color: var(--ink);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='14' viewBox='0 0 28 14'%3E%3Cpath d='M14 1c2 3 5 4 5 8a5 5 0 0 1-10 0c0-4 3-5 5-8z' fill='%23F5C791'/%3E%3Cpath d='M14 5c1 1.6 2.4 2.3 2.4 4.3a2.4 2.4 0 0 1-4.8 0c0-2 1.4-2.7 2.4-4.3z' fill='%231B2241'/%3E%3Ccircle cx='0' cy='11' r='1.6' fill='%23F5C791'/%3E%3Ccircle cx='28' cy='11' r='1.6' fill='%23F5C791'/%3E%3C/svg%3E");
  background-repeat: repeat-x; background-position: center;
}
.flagline { height: 4px; background: linear-gradient(90deg, var(--kh-blue) 0 25%, var(--kh-red) 25% 75%, var(--kh-blue) 75%); }

/* ---------- Top bar ---------- */
.topbar { background: var(--ink); color: var(--on-ink); }
.topbar .wrap { display: flex; align-items: center; gap: 16px; min-height: 64px; flex-wrap: wrap; padding-block: 8px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; min-width: 0; }
.brand-mark { width: 40px; height: 40px; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; min-width: 0; }
.brand-text b { font: 400 22px/1 var(--display); letter-spacing: .04em; }
.brand-text span { font-size: 12px; opacity: .8; font-family: var(--khmer); }
.topbar .spacer { flex: 1; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; white-space: nowrap; }
.pill.gold { background: var(--gold); color: var(--ink); }
.pill.ghost { border: 1px solid rgba(245, 199, 145, .45); color: var(--gold); }
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.bad { background: var(--bad-bg); color: var(--bad); }
.pill.warn { background: var(--warn-bg); color: var(--warn); }
.pill.muted { background: var(--line); color: var(--muted); }

/* ---------- Buttons & fields ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 8px; padding: 12px 20px; font-weight: 600; cursor: pointer; text-decoration: none; transition: transform .12s ease, background .12s ease, box-shadow .12s ease; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--gold); color: var(--ink); box-shadow: inset 0 -2px 0 rgba(0,0,0,.12); }
.btn.primary:hover { background: #F8D4A9; }
.btn.dark { background: var(--sel); color: var(--on-sel); }
.btn.dark:hover { filter: brightness(1.15); }
.btn.line { background: transparent; color: var(--text); border: 1.5px solid var(--line); }
.btn.line:hover { border-color: var(--gold-deep); }
.btn.danger { background: var(--bad-bg); color: var(--bad); }
.btn.small { padding: 7px 12px; font-size: 14px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.field { display: grid; gap: 6px; }
.field label { font-size: 13px; font-weight: 600; color: var(--muted); letter-spacing: .02em; }
.input, textarea.input, select.input { width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 8px; background: var(--card); }
.input:focus { border-color: var(--focus); outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 20%, transparent); }
.code-input { font: 400 clamp(24px, 7vw, 34px)/1 var(--display); letter-spacing: .08em; text-align: center; text-transform: uppercase; padding: 14px; }
.check { display: flex; gap: 10px; align-items: flex-start; }
.check input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--ink); flex: none; }

/* ---------- Hero (login) ---------- */
.hero { background: var(--ink); color: var(--on-ink); position: relative; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; padding-block: 48px 56px; align-items: center; position: relative; z-index: 1; }
.hero h1 { font: 400 clamp(46px, 7vw, 88px)/.92 var(--display); margin: 0; letter-spacing: .01em; text-wrap: balance; }
.hero h1 em { font-style: normal; color: var(--gold); }
.hero .kh-title { font-family: var(--khmer-display); font-size: clamp(15px, 1.9vw, 20px); color: var(--gold); margin: 14px 0 0; line-height: 1.9; }
.hero p.lead { max-width: 52ch; opacity: .88; margin: 14px 0 0; }
.hero .angkor { position: absolute; left: 50%; transform: translateX(-50%); bottom: 0; width: min(820px, 96%); opacity: .11; z-index: 0; pointer-events: none; }
.hero .facts { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }
.login-card { background: var(--card); color: var(--text); border-radius: 14px; padding: 28px; box-shadow: 0 20px 60px rgba(0,0,0,.35); display: grid; gap: 16px; border: 1px solid rgba(245,199,145,.22); }
.login-card h2 { font: 400 30px/1 var(--display); margin: 0; letter-spacing: .03em; }
.login-card .sub { margin: -8px 0 0; color: var(--muted); font-size: 14px; }
.err { background: var(--bad-bg); color: var(--bad); padding: 10px 12px; border-radius: 8px; font-size: 14px; }
.note { background: var(--warn-bg); color: var(--warn); padding: 10px 12px; border-radius: 8px; font-size: 14px; }
@media (max-width: 860px) { .hero .wrap { grid-template-columns: 1fr; padding-block: 32px 40px; } .hero .angkor { width: 140%; } }

.strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; padding-block: 28px; }
.strip .item { display: grid; gap: 4px; }
.strip .item b { font: 400 26px/1 var(--display); letter-spacing: .03em; }
.strip .item span { color: var(--muted); font-size: 14px; }
@media (max-width: 640px) { .strip { grid-template-columns: 1fr; } }

/* ---------- Lobby ---------- */
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); }
.lobby { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr); gap: 24px; padding-block: 32px 56px; }
.lobby .panel { padding: 28px; }
.lobby h2 { font: 400 40px/1 var(--display); margin: 0 0 4px; letter-spacing: .02em; }
.rules { display: grid; gap: 12px; margin: 20px 0; padding: 0; list-style: none; counter-reset: r; }
.rules li { display: grid; grid-template-columns: 34px 1fr; gap: 12px; align-items: start; counter-increment: r; }
.rules li::before { content: counter(r); font: 400 22px/34px var(--display); text-align: center; background: var(--paper); border: 1px solid var(--line); border-radius: 8px; color: var(--gold-deep); }
.idcard { display: grid; gap: 14px; }
.idcard dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0; font-size: 14px; }
.idcard dt { color: var(--muted); }
.idcard dd { margin: 0; font-weight: 600; min-width: 0; overflow-wrap: anywhere; }
@media (max-width: 860px) { .lobby { grid-template-columns: 1fr; } }

/* ---------- Exam ---------- */
.exam-bar { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; }
.timer { display: inline-flex; align-items: baseline; gap: 6px; background: var(--ink-2); border: 1px solid rgba(245,199,145,.35); border-radius: 10px; padding: 4px 12px; }
.timer b { font: 400 30px/1 var(--display); letter-spacing: .05em; color: var(--gold); font-variant-numeric: tabular-nums; }
.timer small { font-size: 11px; opacity: .75; font-family: var(--khmer); }
.timer.low b { color: #FF8A80; animation: pulse 1s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .55; } }
.save { font-size: 13px; opacity: .85; white-space: nowrap; }
.save.err-s { color: #FF8A80; opacity: 1; font-weight: 600; }

.exam { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 24px; align-items: start; padding-block: 24px 64px; }
@media (max-width: 920px) { .exam { grid-template-columns: 1fr; } }
.qcard { padding: 28px; position: relative; overflow: hidden; }
.qcard .meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.qnum { font: 400 44px/1 var(--display); color: var(--gold-deep); letter-spacing: .02em; }
.qnum .kmn { font: 400 18px var(--khmer); color: var(--muted); margin-left: 8px; }
.sec-tag { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 4px 10px; border-radius: 6px; }
.sec-tag.Economics { background: color-mix(in srgb, var(--kh-blue) 12%, transparent); color: var(--kh-blue); }
.sec-tag.Finance { background: color-mix(in srgb, var(--gold-deep) 18%, transparent); color: var(--gold-deep); }
.stem { font-size: 19px; line-height: 1.6; margin: 0 0 22px; max-width: 70ch; user-select: none; -webkit-user-select: none; }
.opts { display: grid; gap: 10px; }
.opt { display: grid; grid-template-columns: 40px 1fr; gap: 14px; align-items: center; text-align: left; width: 100%; padding: 14px 16px; border-radius: 10px; border: 1.5px solid var(--line); background: var(--card); cursor: pointer; user-select: none; -webkit-user-select: none; transition: border-color .12s, background .12s, transform .12s; }
.opt:hover { border-color: var(--gold-deep); }
.opt .letter { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; font: 400 22px/1 var(--display); background: var(--paper); border: 1px solid var(--line); color: var(--text); }
.opt[aria-checked="true"] { border-color: var(--sel); background: color-mix(in srgb, var(--gold) 28%, var(--card)); }
.opt[aria-checked="true"] .letter { background: var(--sel); color: var(--on-sel); border-color: var(--sel); }
.qnav { display: flex; justify-content: space-between; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.watermark { position: absolute; inset: 0; pointer-events: none; opacity: .028; gap: 40px 70px; font: 400 28px/1 var(--display); letter-spacing: .2em; color: var(--text); display: flex; flex-wrap: wrap; align-content: space-around; justify-content: space-around; transform: rotate(-18deg) scale(1.4); overflow: hidden; }

.side { display: grid; gap: 16px; align-content: start; }
.side .panel { padding: 18px; }
.side h3 { font: 400 20px/1 var(--display); letter-spacing: .05em; margin: 0 0 12px; display: flex; justify-content: space-between; align-items: baseline; }
.lotus { display: flex; align-items: center; gap: 14px; }
.lotus svg { width: 72px; height: 72px; flex: none; }
.lotus .big { font: 400 34px/1 var(--display); }
.grid-nav { display: grid; grid-template-columns: repeat(auto-fill, minmax(38px, 1fr)); gap: 6px; }
.grid-nav .sep { grid-column: 1 / -1; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-top: 6px; }
.tile { aspect-ratio: 1; border-radius: 8px; border: 1.5px solid var(--line); background: var(--card); cursor: pointer; font: 600 13px/1 var(--body); display: grid; place-items: center; position: relative; padding: 0; }
.tile.ans { background: var(--sel); color: var(--on-sel); border-color: var(--sel); }
.tile.cur { outline: 2.5px solid var(--gold-deep); outline-offset: 1px; }
.tile.flag::after { content: ""; position: absolute; top: 3px; right: 3px; width: 7px; height: 7px; border-radius: 50%; background: var(--kh-red); }
.legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: 12px; color: var(--muted); margin-top: 10px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 4px; vertical-align: -1px; border: 1px solid var(--line); }
.legend i.a { background: var(--sel); border-color: var(--sel); }
.legend i.f { background: var(--kh-red); border-radius: 50%; border: 0; }
.kbd { font: 600 12px/1 ui-monospace, Menlo, monospace; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px; padding: 2px 5px; }
.hint { font-size: 13px; color: var(--muted); }

.banner { position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(18px + env(safe-area-inset-bottom, 0px)); z-index: 60; max-width: min(560px, calc(100% - 32px)); background: var(--ink); color: var(--on-ink); border-radius: 12px; padding: 14px 18px; box-shadow: 0 12px 40px rgba(0,0,0,.35); display: flex; gap: 12px; align-items: center; }
.banner.warnb { border-left: 5px solid var(--kh-red); }

.overlay { position: fixed; inset: 0; background: rgba(12, 16, 34, .72); z-index: 80; display: grid; place-items: center; padding: 16px; backdrop-filter: blur(3px); }
.modal { background: var(--card); color: var(--text); border-radius: 14px; padding: 26px; width: min(520px, 100%); max-height: calc(100vh - 32px); overflow: auto; display: grid; gap: 14px; box-shadow: 0 24px 80px rgba(0,0,0,.4); }
.modal.wide { width: min(980px, 100%); }
.modal h3 { font: 400 30px/1 var(--display); letter-spacing: .03em; margin: 0; }
.modal .row { display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; }

/* ---------- Done / review ---------- */
.done { text-align: center; padding-block: 56px; display: grid; gap: 16px; justify-items: center; }
.done h2 { font: 400 clamp(44px, 7vw, 72px)/.95 var(--display); margin: 0; }
.done .score { font: 400 96px/1 var(--display); color: var(--gold-deep); }
.done .km-d { color: var(--gold-deep); font-size: 20px; }
.review { display: grid; gap: 16px; padding-block: 8px 56px; }
.rv { padding: 22px; }
.rv .opts .opt { cursor: default; }
.opt.correct { border-color: var(--ok); background: var(--ok-bg); }
.opt.correct .letter { background: var(--ok); color: #fff; border-color: var(--ok); }
.opt.wrong { border-color: var(--bad); background: var(--bad-bg); }
.opt.wrong .letter { background: var(--bad); color: #fff; border-color: var(--bad); }
.explain { margin-top: 14px; padding: 14px 16px; border-radius: 10px; background: var(--paper); border: 1px dashed var(--line); font-size: 15px; }
.explain b { font: 400 16px/1 var(--display); letter-spacing: .08em; color: var(--gold-deep); display: block; margin-bottom: 4px; }

canvas.confetti { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 90; }

/* ---------- Assessor portal ---------- */
.tabs { display: flex; gap: 4px; overflow-x: auto; }
.tabs button { background: transparent; border: 0; color: var(--on-ink); opacity: .7; padding: 10px 14px; border-radius: 8px 8px 0 0; font-weight: 600; cursor: pointer; white-space: nowrap; }
.tabs button[aria-selected="true"] { opacity: 1; background: var(--paper); color: var(--text); }
.tabs button:hover { opacity: 1; }
.admin-main { padding-block: 24px 64px; display: grid; gap: 20px; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.kpi { padding: 16px 18px; display: grid; gap: 2px; }
.kpi span { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.kpi b { font: 400 40px/1 var(--display); letter-spacing: .02em; font-variant-numeric: tabular-nums; }
.kpi small { color: var(--muted); font-size: 12px; }
.cols { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; }
@media (max-width: 900px) { .cols { grid-template-columns: 1fr; } }
.card-h { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.card-h h3 { font: 400 22px/1 var(--display); letter-spacing: .05em; margin: 0; }
.card-b { padding: 16px 18px; }
.tbl-wrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.tbl th { text-align: left; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; position: sticky; top: 0; background: var(--card); }
.tbl td { padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl tr.click { cursor: pointer; }
.tbl tr.click:hover td { background: color-mix(in srgb, var(--gold) 14%, var(--card)); }
.tbl td.r, .tbl th.r { text-align: right; font-variant-numeric: tabular-nums; }
.medal { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; font: 400 18px/1 var(--display); background: var(--paper); border: 1px solid var(--line); }
.medal.m1 { background: var(--gold); border-color: var(--gold-deep); color: var(--ink); }
.medal.m2 { background: #DCDDE3; color: #1B2241; border-color: #B8BAC6; }
.medal.m3 { background: #E7B98C; color: #1B2241; border-color: #B9793A; }
.bar { height: 8px; border-radius: 4px; background: var(--line); overflow: hidden; min-width: 60px; }
.bar i { display: block; height: 100%; background: var(--gold-deep); }
.chart { width: 100%; height: auto; display: block; }
.chart text { fill: var(--muted); font: 11px var(--body); }
.chart .b { fill: var(--gold-deep); }
.chart .axis { stroke: var(--line); }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(760px, 100%); background: var(--card); z-index: 70; box-shadow: -20px 0 60px rgba(0,0,0,.3); overflow: auto; display: grid; grid-template-rows: auto 1fr; }
.drawer .head { background: var(--ink); color: var(--on-ink); padding: 20px; padding-top: calc(20px + env(safe-area-inset-top, 0px)); display: grid; gap: 8px; }
.drawer .head h3 { font: 400 32px/1 var(--display); margin: 0; letter-spacing: .03em; }
.drawer .body { padding: 20px; display: grid; gap: 16px; align-content: start; }
.mini-q { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; display: grid; gap: 6px; font-size: 14px; }
.mini-q.ok { border-left: 5px solid var(--ok); }
.mini-q.no { border-left: 5px solid var(--bad); }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.toast { position: fixed; top: calc(16px + env(safe-area-inset-top, 0px)); left: 50%; transform: translateX(-50%); z-index: 100; background: var(--ink); color: var(--on-ink); padding: 10px 16px; border-radius: 8px; box-shadow: var(--shadow); font-size: 14px; }
.empty { text-align: center; color: var(--muted); padding: 32px 16px; }
.qbank-item { padding: 16px 18px; border-bottom: 1px solid var(--line); display: grid; gap: 8px; }
.qbank-item ol { margin: 0; padding-left: 22px; }
.qbank-item li.key { color: var(--ok); font-weight: 700; }
.demo-ribbon { background: var(--kh-red); color: #fff; text-align: center; font-size: 13px; font-weight: 600; padding: 6px 16px; }
.demo-ribbon button { background: rgba(255,255,255,.18); border: 0; color: #fff; border-radius: 6px; padding: 3px 10px; margin-left: 8px; cursor: pointer; font-weight: 700; }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }
@media print { .topbar, .exam-bar, .side, .qnav { display: none; } }

/* =====================  v2  ===================== */
.on-ink { color: var(--on-ink) !important; border-color: rgba(245,199,145,.4) !important; }
.h3d { font: 400 22px/1 var(--display); letter-spacing: .05em; margin: 0; }
.btn.big { padding: 16px 28px; font-size: 18px; }
.pill.tiny { font-size: 11px; padding: 2px 7px; }
.eyebrow { margin: 0 0 14px; font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); font-family: var(--body); }

/* hero: sunrise behind Angkor */
.hero2 { background: radial-gradient(120% 90% at 50% 120%, #3A3357 0%, var(--ink) 55%); }
.hero2 .sun { position: absolute; left: 50%; bottom: -260px; width: 620px; height: 620px; transform: translateX(-50%); border-radius: 50%;
  background: radial-gradient(circle, rgba(245,199,145,.55) 0%, rgba(245,199,145,.18) 38%, rgba(245,199,145,0) 68%); pointer-events: none; z-index: 0; animation: rise 2.4s ease-out both; }
@keyframes rise { from { transform: translate(-50%, 60px); opacity: 0; } to { transform: translate(-50%, 0); opacity: 1; } }
.hero2 .angkor { opacity: .2; }
.glance { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1px; margin-top: 26px; background: rgba(245,199,145,.25); border: 1px solid rgba(245,199,145,.25); border-radius: 12px; overflow: hidden; max-width: 640px; }
.glance > div { background: rgba(27,34,65,.86); padding: 14px 16px; display: grid; gap: 2px; }
.glance span { font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--gold); }
.glance b { font: 400 24px/1.05 var(--display); letter-spacing: .03em; }
.glance small { font-size: 12px; opacity: .8; }

/* lobby paper map */
.paper-map { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin-top: 18px; }
.pm { border: 1px solid var(--line); border-radius: 12px; padding: 16px; display: grid; gap: 6px; background: var(--paper); }
.pm-k { font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--gold-deep); }
.pm b { font: 400 24px/1.05 var(--display); letter-spacing: .02em; }
.pm > span:not(.pm-k) { color: var(--muted); font-size: 14px; }
.score-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.chip { display: inline-flex; align-items: baseline; gap: 6px; font: 400 26px/1 var(--display); padding: 6px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); font-variant-numeric: tabular-nums; }
.chip small { font: 600 11px var(--body); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.chip.good { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
.chip.bad { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 40%, transparent); }

/* section bar under the exam header */
.secbar { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: calc(64px + env(safe-area-inset-top, 0px)); z-index: 19; }
.seg2 { display: flex; gap: 8px; padding-block: 8px; overflow-x: auto; }
.seg2 button { display: flex; gap: 10px; align-items: center; border: 1.5px solid var(--line); background: var(--paper); border-radius: 10px; padding: 6px 14px 6px 8px; cursor: pointer; text-align: left; color: var(--text); white-space: nowrap; }
.seg2 button[aria-current="true"] { border-color: var(--sel); background: color-mix(in srgb, var(--gold) 22%, var(--card)); }
.seg2 .sn { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; font: 400 20px/1 var(--display); background: var(--sel); color: var(--on-sel); }
.seg2 b { display: block; font-size: 14px; }
.seg2 small { display: block; font-size: 12px; color: var(--muted); }

/* open question card */
.qcard.oq .oq-title { font: 400 34px/1.05 var(--display); letter-spacing: .02em; margin: 0 0 10px; }
.oq-stem { font-size: 17px; line-height: 1.65; background: var(--paper); border: 1px solid var(--line); border-left: 4px solid var(--gold-deep); border-radius: 10px; padding: 16px 18px; max-width: 78ch; user-select: none; -webkit-user-select: none; }
.part { margin-top: 22px; display: grid; gap: 8px; }
.part-h { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: start; }
.part-h p { margin: 0; font-weight: 500; user-select: none; -webkit-user-select: none; }
.plabel { font: 400 24px/1 var(--display); color: var(--gold-deep); }
.symbar { display: flex; flex-wrap: wrap; gap: 4px; }
.symbar button { min-width: 32px; height: 30px; border: 1px solid var(--line); background: var(--card); border-radius: 6px; cursor: pointer; font: 600 15px var(--body); color: var(--text); }
.symbar button:hover { border-color: var(--gold-deep); background: color-mix(in srgb, var(--gold) 20%, var(--card)); }
textarea.answer { min-height: 120px; resize: vertical; font: 16px/1.6 var(--body); background: var(--card); background-image: repeating-linear-gradient(transparent 0 25px, color-mix(in srgb, var(--line) 60%, transparent) 25px 26px); background-position: 0 12px; }
.part-f { display: flex; justify-content: space-between; gap: 10px; }
.gradesw { display: flex; align-items: center; gap: 12px; margin-top: 18px; padding: 12px 14px; border: 1.5px dashed var(--line); border-radius: 12px; cursor: pointer; }
.gradesw input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.gradesw .sw { width: 46px; height: 26px; border-radius: 99px; background: var(--line); position: relative; flex: none; transition: background .15s; }
.gradesw .sw::after { content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.25); transition: transform .15s; }
.gradesw input:checked + .sw { background: var(--ok); }
.gradesw input:checked + .sw::after { transform: translateX(20px); }
.gradesw input:focus-visible + .sw { outline: 3px solid var(--focus); outline-offset: 2px; }
.gradesw b { display: block; } .gradesw small { color: var(--muted); }
.tile.wide { grid-column: span 2; aspect-ratio: auto; height: 38px; }
.tile.grd { box-shadow: inset 0 -4px 0 var(--ok); }
.legend i.g { background: var(--ok); border-color: var(--ok); }

/* submit summary, results */
.sumgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; }
.sumgrid > div { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; display: grid; gap: 2px; }
.sumgrid span { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.sumgrid b { font: 400 32px/1 var(--display); }
.sumgrid small { color: var(--muted); font-size: 13px; }
.result-card { border: 1px solid var(--line); background: var(--card); border-radius: 16px; padding: 22px; display: grid; gap: 16px; min-width: min(560px, 100%); box-shadow: var(--shadow); }
.rc-main { display: grid; justify-items: center; }
.rc-main span, .rc-row span { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.rc-main b { font: 400 88px/1 var(--display); color: var(--gold-deep); }
.rc-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.rc-row > div { display: grid; gap: 2px; border-top: 1px solid var(--line); padding-top: 12px; }
.rc-row b { font: 400 40px/1 var(--display); }
.rc-row small { color: var(--muted); }
.your { white-space: pre-wrap; background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; font-size: 15px; line-height: 1.6; overflow-wrap: anywhere; }
.your.sm { font-size: 13px; padding: 8px 10px; max-height: 160px; overflow: auto; }
.rv-meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 10px; }

/* assessor additions */
.kpi.live b { color: var(--ok); }
.kpi b .of { font: 400 20px var(--display); color: var(--muted); }
.kpi-ring { display: inline-block; vertical-align: -8px; margin-right: 6px; }
.mini-q.pend { border-left: 5px solid var(--warn); }
.keyc { color: var(--ok); font-weight: 700; }
.small-sel { width: auto; padding: 6px 10px; font-size: 14px; }
.fs { border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px 18px; margin: 0; }
.fs legend { font: 400 20px/1 var(--display); letter-spacing: .05em; padding: 0 6px; }
.drawer-wrap { place-items: stretch end; padding: 0; }
.kbd.on-dark { border-color: rgba(255,255,255,.35); color: inherit; opacity: .8; margin-left: 4px; }

.mark-top { overflow-x: auto; }
.mq-list { display: flex; gap: 10px; }
.mq { display: flex; gap: 10px; align-items: center; text-align: left; border: 1.5px solid var(--line); background: var(--card); border-radius: 12px; padding: 8px 14px 8px 8px; cursor: pointer; min-width: 220px; color: var(--text); }
.mq[aria-current="true"] { border-color: var(--sel); box-shadow: var(--shadow); }
.mq b { font-size: 14px; } .mq small { display: block; color: var(--muted); font-size: 12px; }
.mq .ring text { fill: var(--text); }
.mark-grid { display: grid; grid-template-columns: 210px minmax(0, 1fr) minmax(0, .8fr); gap: 16px; align-items: start; }
@media (max-width: 1100px) { .mark-grid { grid-template-columns: 180px minmax(0, 1fr); } .mark-key { grid-column: 1 / -1; } }
@media (max-width: 700px) { .mark-grid { grid-template-columns: 1fr; } }
.slist { display: grid; gap: 4px; padding: 10px; max-height: 70vh; overflow: auto; }
.sitem { display: flex; gap: 6px; align-items: center; justify-content: space-between; border: 1px solid transparent; background: transparent; border-radius: 8px; padding: 8px 10px; cursor: pointer; color: var(--text); }
.sitem:hover { background: var(--paper); }
.sitem[aria-current="true"] { background: color-mix(in srgb, var(--gold) 22%, var(--card)); border-color: var(--gold-deep); }
.mark-key { position: sticky; top: 12px; max-height: calc(100vh - 24px); overflow: auto; }
.key-b { display: grid; gap: 14px; }
.keypart p { margin: 4px 0 8px; font-size: 14px; }
.scheme { margin: 8px 0 0; padding-left: 18px; font-size: 13px; color: var(--muted); display: grid; gap: 3px; }
.ms { display: grid; gap: 18px; }
.mpart { display: grid; gap: 8px; }
.mpart-h { display: flex; gap: 8px; align-items: baseline; }
.mpart-h b { font: 400 22px/1 var(--display); color: var(--gold-deep); }
.stepper { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.stepper button { min-width: 34px; height: 34px; border-radius: 8px; border: 1.5px solid var(--line); background: var(--card); cursor: pointer; font-weight: 700; color: var(--text); }
.stepper button[aria-pressed="true"] { background: var(--sel); color: var(--on-sel); border-color: var(--sel); }
.stepper .mk { width: 72px; padding: 6px 8px; text-align: center; font-weight: 700; }
.mfoot { display: grid; gap: 12px; border-top: 1px solid var(--line); padding-top: 14px; }
.mrow { display: flex; gap: 14px; align-items: end; flex-wrap: wrap; }
.mrow .field { width: 120px; }
.mtotal { margin-left: auto; display: flex; align-items: baseline; gap: 6px; }
.mtotal span { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.mtotal b { font: 400 40px/1 var(--display); color: var(--gold-deep); }
details.kp { border-top: 1px solid var(--line); padding: 8px 0; }
details.kp summary { cursor: pointer; }
@media (max-width: 640px) { .secbar { top: calc(96px + env(safe-area-inset-top, 0px)); } .qcard { padding: 18px; } .oq-stem { font-size: 16px; } }
/* symbol bar appears for the part being written */
.part .symbar { display: none; }
.part:focus-within .symbar { display: flex; }
textarea.answer { line-height: 26px; padding-top: 12px; background-position: 0 12px; }
.lobby { align-items: start; }
.idcard, .pm { align-content: start; }