/* Navy + amber, with terminal green for "correct". */
:root{
  --brand:#12355b; --brand-dark:#0b2440; --brand-light:#1f4f82;
  --accent:#f2a900; --accent-light:#ffd166; --accent-dark:#8a5a00;
  --cream:#f5f7fa; --ink:#16202b; --white:#fff;
  --muted:#6b7785; --line:#dde3ea;
  --ok:#1d7a3d; --warn:#9a6206; --err:#b3261e;
  --font-sans:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --font-serif:var(--font-sans);
  /* Keys, register numbers and code are read aloud and copied by hand, so they
     use a monospace face where 1, l and I - and 0 and O - cannot be confused. */
  --font-mono:ui-monospace,"SF Mono","Cascadia Mono","Segoe UI Mono","Roboto Mono",Menlo,Consolas,"DejaVu Sans Mono",monospace;
  --radius:14px; --shadow:0 8px 28px rgba(11,36,64,.10);
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--font-sans);color:var(--ink);
  background:var(--cream);min-height:100vh;
  background-image:radial-gradient(1200px 400px at 50% -120px, rgba(242,169,0,.12), transparent 60%);}

/* ---------- top bar  ---------- */
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 20px;min-height:92px;
  background:rgba(255,255,255,.97);backdrop-filter:blur(6px);
  color:var(--brand-dark);border-bottom:1px solid rgba(242,169,0,.5);box-shadow:0 2px 10px rgba(11,36,64,.07);
  position:sticky;top:0;z-index:50}
.brand{display:flex;gap:16px;align-items:center;text-decoration:none;color:var(--brand-dark)}
.brand-logo{height:73px;width:auto;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-name{font-family:var(--font-serif);font-weight:700;font-size:23px;color:var(--brand);letter-spacing:-.01em}
.brand-sub{font-size:11px;text-transform:uppercase;letter-spacing:3px;color:var(--accent-dark);font-weight:600}
.brand-badge{align-self:center;background:var(--brand);color:var(--cream);font-size:11px;font-weight:700;
  text-transform:uppercase;letter-spacing:1px;padding:5px 11px;border-radius:999px;white-space:nowrap}
.topnav{display:flex;gap:12px;align-items:center}
.who{font-size:13px;color:var(--brand-dark);opacity:.85}
@media(max-width:680px){.brand-badge{display:none}.brand-name{font-size:20px}.topbar{min-height:74px}.brand-logo{height:55px}}
@media(max-width:520px){.topbar{min-height:62px;padding:8px 14px}.brand-logo{height:45px}.brand-name{font-size:17px}
  .brand-sub{letter-spacing:2px;font-size:10px}.who{display:none}}

.wrap{max-width:980px;margin:24px auto;padding:0 16px}
.foot{text-align:center;color:var(--muted);font-size:12px;padding:26px}

.card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:24px;margin-bottom:18px;border:1px solid var(--line)}
h1,h2,h3{font-family:var(--font-serif);color:var(--brand-dark);font-weight:700;letter-spacing:-.015em}
h1{margin:.1em 0 .35em;font-size:27px}
h2{font-size:21px;margin:.2em 0 .5em}
h3{font-size:17px}
.muted{color:var(--muted)}
.row-between{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}

label{display:block;margin:12px 0;font-weight:600;font-size:14px}
input,select{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;font-size:16px;
  margin-top:6px;background:#fff;color:var(--ink)}
input:focus,select:focus{outline:none;border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(31,79,130,.12)}
input[type=file]{padding:8px;font-weight:400}

button{cursor:pointer;font-size:15px;border:0;border-radius:10px;font-family:var(--font-sans)}
.btn-primary{background:var(--brand);color:#fff;padding:13px 22px;font-weight:600;box-shadow:0 3px 0 var(--brand-dark);display:inline-block;text-decoration:none}
.btn-primary:hover{background:var(--brand-light)}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}
.btn-danger{background:#a31a10;color:#fff;padding:13px 22px;font-weight:600;display:inline-block;text-decoration:none}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid var(--line);padding:9px 14px;
  text-decoration:none;display:inline-block;font-weight:600}
.btn-ghost:hover{border-color:var(--brand-light);color:var(--brand-light)}
.btn-mini{background:#fff4d6;color:var(--accent-dark);padding:6px 10px;font-size:13px;font-weight:600}
.btn-mini:hover{background:var(--accent-light)}
.inline-actions{margin:10px 0}
.links{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}

.alert{padding:12px 14px;border-radius:10px;margin:12px 0;font-size:14px;border:1px solid transparent}
.alert.error{background:#fdecea;color:#8f1a13;border-color:#f3c9c5}
.alert.ok{background:#e8f6ec;color:#15622f;border-color:#bfe3ca}
.alert.warn{background:#fff4d6;color:var(--accent-dark);border-color:#f3dfa0}

/* ---------- login ---------- */
.login-card{max-width:400px;margin:7vh auto;text-align:center}
.login-card form{text-align:left}
.login-card h1{margin-top:8px}
.login-crest{height:126px;width:auto;margin:0 auto 10px}

/* ---------- status pills ---------- */
.status-pill{display:inline-block;padding:3px 11px;border-radius:999px;font-size:12px;font-weight:700;text-transform:uppercase}
.status-running,.status-ready,.status-voting{background:#e8f6ec;color:#15622f}
.status-not_started,.status-idle{background:#e7ecf2;color:#4f5b68}
.status-closed,.status-done{background:#fff4d6;color:var(--accent-dark)}

/* ---------- tables ---------- */
.grid{width:100%;border-collapse:collapse;margin-top:8px}
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.grid th,.grid td{padding:9px 8px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:middle}
.grid th{font-size:12px;text-transform:uppercase;color:var(--muted);letter-spacing:.5px}
.bar{display:inline-block;width:90px;height:9px;background:#e7ecf2;border-radius:999px;overflow:hidden;vertical-align:middle;margin-right:6px}
.bar span{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-light))}
.turnout,.turnout-grand{font-size:15px;margin:8px 0}
.turnout-grand{font-size:19px;font-family:var(--font-serif);font-weight:700;color:var(--brand-dark)}

.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:end}
.filters input,.filters select{width:auto;flex:1;min-width:140px;margin-top:0}
.pw{background:var(--ink);color:var(--accent-light);padding:3px 8px;border-radius:6px}
code{font-family:ui-monospace,Menlo,Consolas,monospace}
.actions{display:flex;gap:6px;flex-wrap:wrap}

/* ---------- danger zone ---------- */
.danger-zone{border:1.5px solid #f0c4c0;background:#fdf6f5}
.danger-zone h2{color:#a31a10}
.reset-form{display:flex;gap:12px;align-items:end;flex-wrap:wrap}
.reset-form label{margin:0}
.reset-form input{width:auto;min-width:150px}
/* =========================================================================
   Exam runner, answer review, admin controls.
   ========================================================================= */

.status-wrong{background:#fdecea;color:#8f1a13}

.form2{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
@media(max-width:640px){.form2{grid-template-columns:1fr}}
form.inline{display:inline}
/* The action buttons wrap inside their own cell. Without this the row keeps
   growing and pushes the table out past the edge of the card. */
td.actions{display:flex;flex-wrap:wrap;gap:5px;align-items:flex-start;min-width:150px}
td.actions form{margin:0}
td.actions .btn-mini{white-space:nowrap}
.qcell{max-width:340px;font-size:13px}
tr.row-missing td{background:#fff4d6}

.tag{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:700;
  text-transform:uppercase;letter-spacing:.3px;margin-left:6px}
.tag-ok{background:#e8f6ec;color:#15622f}
.tag-bad{background:#fdecea;color:#8f1a13}

/* ---------- test key ---------- */
.keycard{text-align:center;background:linear-gradient(180deg,#fff,var(--cream));border:2px solid var(--accent)}
.bigkey{font-family:var(--font-mono);font-size:clamp(30px,9vw,52px);font-weight:700;
  letter-spacing:.14em;font-variant-numeric:tabular-nums slashed-zero;
  color:var(--brand);margin:10px 0 4px;word-break:break-all}
code.key{font-family:var(--font-mono);font-size:17px;font-weight:700;letter-spacing:.12em;
  font-variant-numeric:tabular-nums slashed-zero;color:var(--brand-dark);
  background:#fff4d6;padding:3px 8px;border-radius:6px}
.keyinput{text-align:center;font-size:clamp(22px,7vw,30px)!important;letter-spacing:.3em;
  font-weight:700;font-variant-numeric:tabular-nums slashed-zero;
  font-family:var(--font-mono);padding:14px!important}

/* ---------- exam runner ---------- */
.exam-bar{position:sticky;top:0;z-index:40;display:flex;justify-content:space-between;align-items:center;
  gap:12px;flex-wrap:wrap;background:var(--brand);color:#fff;padding:11px 16px;border-radius:12px;
  margin-bottom:14px;box-shadow:var(--shadow)}
.exam-bar .muted{color:rgba(255,255,255,.75)}
.exam-clock{font-family:var(--font-mono);font-size:26px;font-weight:700;
  font-variant-numeric:tabular-nums slashed-zero;background:rgba(0,0,0,.18);
  padding:2px 16px;border-radius:10px;min-width:112px;text-align:center}
.exam-clock.low{background:var(--accent);color:var(--brand-dark);animation:pulsekey 1s infinite}
.exam-clock.untimed{font-family:var(--font-sans);font-size:14px;font-weight:600;letter-spacing:.02em;
  opacity:.85;padding:7px 16px}
@keyframes pulsekey{50%{opacity:.72}}

.palette{display:flex;flex-wrap:wrap;gap:7px}
.pal{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:9px;
  border:1.5px solid var(--line);background:#fff;color:var(--muted);text-decoration:none;
  font-size:13px;font-weight:700}
.pal:hover{border-color:var(--brand-light)}
.pal-done{background:var(--brand);border-color:var(--brand);color:#fff}
.pal{cursor:pointer;font-family:inherit;padding:0}
.pal-now{outline:2.5px solid var(--accent);outline-offset:2px;border-color:var(--brand)}
.qcount{font-size:12px;font-weight:600;letter-spacing:.03em}
.qnav{display:flex;align-items:center;justify-content:space-between;gap:14px;position:sticky;bottom:0;
  z-index:5;box-shadow:0 -6px 18px rgba(0,0,0,.07)}
.qnav .muted{font-size:13px;font-weight:600;white-space:nowrap}
.qnav button[disabled]{opacity:.4;cursor:not-allowed}
@media (max-width:520px){
  .qnav{gap:8px;padding-left:14px;padding-right:14px}
  .qnav .btn-ghost,.qnav .btn-primary{padding:11px 14px}
}
table code{font-family:var(--font-mono);font-variant-numeric:tabular-nums slashed-zero}
.streampick{width:auto;min-width:118px;padding:5px 7px;font-size:13px;font-weight:600}
.stream{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase}
.stream-neet{background:#e6f2ea;color:#1d7a3d}
.stream-jee{background:#e7edf8;color:#28508f}
.stream-both{background:#f3ecf8;color:#6b3f96}
.savenote{margin:12px 0 0;font-size:12px}
.savefail{color:var(--err);font-weight:600}

.qcard{scroll-margin-top:84px}
.qhead{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.qno{font-family:var(--font-mono);font-size:17px;font-weight:700;color:var(--brand-dark);
  font-variant-numeric:tabular-nums}
.qbody{font-size:16px;line-height:1.55}
.qbody p{margin:0 0 8px}
.qimg{max-width:100%;height:auto;margin:12px 0;border:1px solid var(--line);border-radius:10px;background:#fff}

.opts{display:grid;gap:9px;margin:14px 0 10px}
.opt{display:flex;gap:11px;align-items:flex-start;padding:11px 13px;border:1.5px solid var(--line);
  border-radius:11px;background:#fff;cursor:pointer;font-weight:400;margin:0}
label.opt:hover{border-color:var(--accent);background:#f8fbff}
.opt input{width:auto;margin:3px 0 0;flex:none}
.optlbl{font-weight:700;color:var(--brand-dark);flex:none;min-width:18px}
.opttxt{flex:1;line-height:1.45}
.opt-on{border-color:var(--brand);background:#eef4fb;box-shadow:0 0 0 2px rgba(31,79,130,.10)}
.opt-correct{border-color:var(--ok);background:#f1faf3}
.opt-picked-wrong{border-color:var(--err);background:#fdf1f0}
.clearq{margin-top:2px}

/* ---------- result ---------- */
.scoreboard{display:flex;gap:26px;align-items:center;flex-wrap:wrap;background:var(--cream);
  border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:14px 0}
.scorebig{text-align:center;min-width:140px}
.scorenum{font-family:var(--font-mono);font-size:44px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums slashed-zero}
.scoremax{font-size:19px;color:var(--muted)}
.scorestats{display:flex;gap:26px;flex-wrap:wrap;font-size:14px}
.stat{font-family:var(--font-mono);font-size:23px;font-weight:700;display:block;
  font-variant-numeric:tabular-nums slashed-zero}
.stat.ok{color:var(--ok)}
.stat.bad{color:var(--err)}
.stat.neutral{color:var(--muted)}
.review-right{border-left:5px solid var(--ok)}
.review-wrong{border-left:5px solid var(--err)}
.review-blank{border-left:5px solid var(--line)}
.explain{margin-top:12px;padding:13px 15px;background:var(--cream);border-radius:10px;
  border:1px solid var(--line);font-size:14px;line-height:1.55}

/* ---------- danger zone ---------- */
.card.danger{border:2px solid #f3c9c5;background:#fffafa}
.card.danger h2{color:#8f1a13}

/* Native radio hidden: the lettered badge itself is the indicator, and the whole
   option row is the tap target - much easier on a phone than a 13px circle.
   The input stays in the DOM so keyboard and screen-reader users are unaffected. */
.opt input{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.opt .optlbl{display:flex;align-items:center;justify-content:center;width:28px;height:28px;
  border-radius:50%;border:2px solid var(--line);background:#fff;color:var(--muted);
  font-size:13px;font-weight:700;flex:none;transition:background .12s,border-color .12s,color .12s}
.opt-on .optlbl{background:var(--brand);border-color:var(--brand);color:#fff}
.opt-correct .optlbl{background:var(--ok);border-color:var(--ok);color:#fff}
.opt-picked-wrong .optlbl{background:var(--err);border-color:var(--err);color:#fff}
.opt:focus-within{border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(31,79,130,.14)}
.opt .opttxt{padding-top:3px}
.statusnote{font-size:11px;line-height:1.35;display:inline-block;max-width:120px}
.grid td.qcol,.grid td.statuscol{line-height:1.5}
.grid td.nowrap{white-space:nowrap}
/* A long paper title should use the space it has rather than break every word. */
.grid td:first-child{min-width:150px}
.grid .tag{white-space:normal}
.filter{display:inline-block;margin:0}
.inline-label{display:inline-flex;align-items:center;gap:8px;margin:0;font-size:13px;color:var(--muted)}
.inline-label select{width:auto;min-width:150px;margin-top:0;padding:8px 10px;font-size:14px}
.subjhead{display:flex;align-items:baseline;gap:9px;margin:22px 0 2px;padding-top:15px;
  border-top:1px solid var(--line);font-size:16px;color:var(--brand)}
.subjhead:first-of-type{border-top:0;padding-top:6px;margin-top:14px}
.subjhead .muted{font-family:var(--font-sans);font-size:12px;font-weight:600}

/* ---------- CIT additions ---------- */
.brand-logo{height:52px}
.login-crest{height:84px}
@media(max-width:680px){.brand-logo{height:44px}}
@media(max-width:520px){.brand-logo{height:36px}}
.mono,input.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums slashed-zero}
.qbody code,.opttxt code,.explain code{font-family:var(--font-mono);font-size:.92em;background:#eef2f6;
  padding:1px 6px;border-radius:5px;color:var(--brand-dark)}
pre.code{font-family:var(--font-mono);font-size:14px;line-height:1.5;background:#0f1a24;color:#d7f7d0;
  padding:12px 14px;border-radius:10px;overflow-x:auto;margin:8px 0 10px;white-space:pre}
.opttxt{font-family:var(--font-mono);font-size:15px}
.addrow{display:flex;gap:12px;align-items:end;flex-wrap:wrap}
.addrow label{margin:0;flex:1;min-width:180px}
.narrow{max-width:420px}
.qedit{border-top:1px solid var(--line);padding:16px 0}
.qedit.row-missing{background:#fff4d6;padding-left:10px;padding-right:10px}
.keypick{width:auto;min-width:150px;margin:0;padding:7px 10px;font-size:14px}
.optlist{margin:6px 0 0;padding-left:26px;font-family:var(--font-mono);font-size:14px;line-height:1.7}
.optlist li.is-key{color:var(--ok);font-weight:700}