/* ═══════════════════════════════════════════════════════════
   SATLab shared theme — warm cream + gold, rounded, soft depth.
   Loaded AFTER each page's inline <style>, so it re-skins every
   page by redefining the colour tokens and the shared components.
   ═══════════════════════════════════════════════════════════ */

:root {
  --black:#0b1f44; --gray-dark:#344054; --gray-mid:#667085; --gray-light:#b4bccb;
  --gray-border:#e3e8f0; --gray-bg:#edf1f7; --white:#f2f6fc;
  --card:#ffffff;
  --correct:#1f8a4c; --incorrect:#d1493b; --warn:#b9862b;
  --answer-hover:#eef3fa; --answer-selected:#101828; --answer-selected-text:#ffffff;
  --gold:#1c5fd4; --gold-2:#6f9cf0; --gold-deep:#154aa8;
  --gold-grad:linear-gradient(135deg,#2f7bf0 0%,#1c5fd4 55%,#123f94 100%);
  --gold-soft:rgba(28,95,212,.10);
  --r-sm:10px; --r-md:14px; --r-lg:22px; --r-xl:30px;
  --shadow-sm:0 1px 2px rgba(16,40,90,.05),0 2px 8px rgba(16,40,90,.05);
  --shadow-md:0 4px 10px rgba(16,40,90,.06),0 14px 34px rgba(16,40,90,.09);
  --font-ui:'Plus Jakarta Sans','DM Sans',system-ui,sans-serif;
}
:root[data-theme="dark"] {
  --black:#eef2f8; --gray-dark:#cbd3e1; --gray-mid:#8f9bb0; --gray-light:#4b566b;
  --gray-border:#1f2f52; --gray-bg:#0f1a33; --white:#08122a; --card:#0d1932;
  --answer-hover:#18223a; --answer-selected:#eef2f8; --answer-selected-text:#0a0f1b;
  --gold:#5b97ff; --gold-2:#8db6ff; --gold-deep:#8db6ff; --gold-soft:rgba(91,151,255,.14);
  --shadow-sm:0 1px 2px rgba(0,0,0,.3); --shadow-md:0 10px 34px rgba(0,0,0,.45);
}

html, body { font-family:var(--font-ui); background:var(--white); }
body {
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(59,110,245,.13), transparent 60%),
    radial-gradient(700px 420px at -5% 105%, rgba(23,184,160,.09), transparent 60%),
    var(--white);
  background-attachment:fixed;
}
::selection { background:rgba(43,143,214,.28); }
:focus-visible { outline:2px solid var(--gold); outline-offset:2px; }

/* ── Headings / labels ── */
.hero-title, .settings-title, .subj-title, .mod-hero-title, .card-title, .mod-card-name,
.auth-title, .stat-num, .ov-stat .n, .d-title, .score-big, .total-score-num, .overlay-title, .o-title {
  font-family:var(--font-ui) !important; letter-spacing:-.025em; font-weight:700;
}
.hero-label, .settings-label, .subj-label, .mod-hero-label, .auth-label {
  display:inline-block; padding:5px 12px; border-radius:999px; background:var(--gold-soft);
  color:var(--gold-deep); font-weight:500; letter-spacing:.1em;
}
:root[data-theme="dark"] .hero-label, :root[data-theme="dark"] .settings-label,
:root[data-theme="dark"] .subj-label, :root[data-theme="dark"] .mod-hero-label { color:var(--gold-2); }
.sec-label, .mod-group-label, .group-label, .section-title, .report-section-title { color:var(--gold-deep); }
.sec-label::after, .mod-group-label::after, .group-label::after, .section-title::after,
.report-section-title::after { background:var(--gray-border); }

/* ── Header (inner pages) ── */
.site-header {
  background:color-mix(in srgb, var(--white) 82%, transparent);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--gray-border); height:64px;
}
.logo { font-family:var(--font-ui); font-weight:800; letter-spacing:-.01em; text-transform:none; font-size:18px; display:flex; align-items:center; gap:10px; }
.logo::before {
  content:'S'; display:grid; place-items:center; width:32px; height:32px; border-radius:10px;
  background:var(--gold-grad); color:#fff; font-size:16px; font-weight:800; box-shadow:var(--shadow-sm);
}
.breadcrumb .cur { color:var(--black); }

/* ── Buttons ── */
.back-btn, .btn-exit, .btn-nav, .bnav, .overlay-btn, .obtn, .tbtn, .settings-btn {
  border-radius:999px !important; background:var(--card); border:1px solid var(--gray-border);
  color:var(--gray-dark); font-family:var(--font-ui); font-weight:500;
  transition:all .18s ease;
}
.back-btn:hover, .btn-exit:hover, .btn-nav:hover, .bnav:hover, .overlay-btn:hover, .obtn:hover, .tbtn:hover, .settings-btn:hover {
  border-color:var(--gold); color:var(--gold-deep); box-shadow:var(--shadow-sm);
}
.btn-nav.primary, .bnav.pri, .overlay-btn.primary, .obtn.pri, .btn-submit, .submit-btn, .reco-cta,
.guest-block a.cta, .tbtn.on, .btn-primary {
  background:var(--gold-grad) !important; color:#fff !important; border:1px solid transparent !important;
  border-radius:999px !important; font-weight:600; box-shadow:0 6px 16px rgba(43,110,214,.30);
}
.btn-nav.primary:hover, .bnav.pri:hover, .overlay-btn.primary:hover, .obtn.pri:hover, .btn-submit:hover,
.submit-btn:hover, .reco-cta:hover, .guest-block a.cta:hover { filter:brightness(1.07); transform:translateY(-1px); opacity:1; }
.timer-toggle, .timer-tog, .toolbar-action { border-radius:999px; }
/* Pause is a <button>: without this it gets the browser's light default background (a white pill in dark mode). */
.timer-toggle, .timer-tog { background:transparent; font-family:'DM Mono',monospace; }

/* ── Cards / rows ── */
.subject-card, .mod-card, .module-result-card, .total-score-card, .theme-option, .ref-item, .rationale-box {
  background:var(--card); border:1px solid var(--gray-border); border-radius:var(--r-lg); box-shadow:var(--shadow-sm);
}
.subject-card:hover, .mod-card:hover, .theme-option:hover {
  border-color:var(--gold-2); background:var(--card); box-shadow:var(--shadow-md);
}
.theme-option.active { border-color:var(--gold); background:var(--gold-soft); }
.theme-option.active .theme-check { border-color:var(--gold); }
.theme-option.active .theme-check::after { background:var(--gold); }
.theme-swatch { border-radius:var(--r-sm); }
.test-row, .hist-row, .domain-row { border-radius:var(--r-md); }
.test-row { background:var(--card); border:1px solid var(--gray-border) !important; padding:1rem 1.25rem; margin-bottom:10px; box-shadow:var(--shadow-sm); }
.test-row:hover { background:var(--card); border-color:var(--gold-2) !important; box-shadow:var(--shadow-md); transform:translateY(-1px); padding:1rem 1.25rem; margin:0 0 10px; }
.test-row.disabled:hover { transform:none; box-shadow:var(--shadow-sm); }
.hist-row { background:var(--card); border:1px solid var(--gray-border) !important; padding:1rem 1.15rem; margin-bottom:10px; }
.hist-row:hover { background:var(--card); border-color:var(--gold-2) !important; box-shadow:var(--shadow-sm); }
.test-idx { color:var(--gold); font-weight:500; }

/* ── Chips / tags / badges ── */
.card-tag, .mod-tag, .chip, .badge, .hist-type, .passage-skill-tag, .skill-tag, .passage-difficulty, .diff-tag, .domain-focus-badge {
  border-radius:999px !important;
}
.badge-avail { border-color:transparent; background:var(--gold-soft); color:var(--gold-deep); }
:root[data-theme="dark"] .badge-avail { color:var(--gold-2); }
.card-tag, .mod-tag { background:var(--gold-soft); border-color:transparent; color:var(--gold-deep); }

/* ── Form fields / auth ── */
.field input, .fr-input, .note-textarea {
  background:var(--card); border:1px solid var(--gray-border); border-radius:var(--r-sm);
}
.field input:focus, .fr-input:focus { border-color:var(--gold); box-shadow:0 0 0 4px var(--gold-soft); }
.tabs { background:var(--gray-bg); border-radius:999px; padding:4px; border:none; gap:4px; }
.tab { border-radius:999px; font-weight:500; }
.tab.active { background:var(--card); color:var(--black); box-shadow:var(--shadow-sm); }
.auth-box { background:var(--card); border:1px solid var(--gray-border); border-radius:var(--r-xl); padding:2.5rem 2rem; box-shadow:var(--shadow-md); }
.guest-note a { color:var(--gold-deep); font-weight:600; }

/* ── Progress bars ── */
.bar-wrap, .domain-bar-wrap { border-radius:999px; background:var(--gray-bg); }
.bar-fill, .domain-bar { border-radius:999px; background:var(--gold-grad); }
.bar-fill.weak { background:var(--incorrect); } .bar-fill.mid { background:var(--warn); } .bar-fill.strong { background:var(--correct); }

/* ── Test-taking UI ── */
.top-bar, .bottom-bar, .bot-bar { background:color-mix(in srgb, var(--white) 88%, transparent); backdrop-filter:blur(12px); }
.answer-option { border-radius:var(--r-md); background:var(--card); }
.answer-option:hover { border-color:var(--gold); background:var(--answer-hover); }
.answer-option.selected { border-color:var(--black); }
.mc-btn { border-radius:var(--r-md); background:var(--card); }
.mc-btn:hover { border-color:var(--gold); color:var(--gold-deep); }
.q-dot, .qdot, .cbtn { border-radius:10px; }
.q-dot.active, .q-dot.answered:hover, .qdot.cur { background:var(--black); }
.overlay { backdrop-filter:blur(6px); background:rgba(8,14,30,.55); }
.overlay-box, .obox { border-radius:var(--r-xl); background:var(--card); box-shadow:var(--shadow-md); }
.q-img-wrap { border-radius:var(--r-md); }
.divider:hover, .divider.dragging { background:var(--gold); }
.loading-spinner, .spinner { border-top-color:var(--gold); }
.passage-pane, .q-pane, .question-pane { scrollbar-width:thin; }
.tool-pane { border-left:1px solid var(--gray-border); }
.ttab.on { border-bottom-color:var(--gold); color:var(--gold-deep); }
.note-popup { border-radius:var(--r-md); }

/* ── Footer ── */
.site-footer { border-top:1px solid var(--gray-border); background:transparent; }
.footer-copy { color:var(--gray-mid); }

/* ── Empty / guest blocks ── */
.empty-state, .guest-block { background:var(--card); border:1px dashed var(--gray-border); border-radius:var(--r-lg); }
.empty-state { margin-top:1rem; padding:3rem 1.5rem; }
.empty-state .big, .guest-block .big { font-family:var(--font-ui); font-weight:700; letter-spacing:-.02em; }

/* ── Recommendation pop-up ── */
.reco-popup { border-radius:var(--r-lg); background:var(--card); box-shadow:var(--shadow-md); border-color:var(--gold-2); }
.reco-eyebrow { color:var(--gold-deep); }

/* ═══ Round 2: test-taking polish ═══ */
.top-bar, .bottom-bar, .bot-bar { height:60px; }
.top-bar-logo, .tb-logo { font-family:var(--font-ui); font-weight:800; text-transform:none; font-size:16px; letter-spacing:-.01em; display:flex; align-items:center; gap:8px; }
.top-bar-logo::before, .tb-logo::before { content:'S'; display:grid; place-items:center; width:26px; height:26px; border-radius:8px; background:var(--gold-grad); color:#fff; font-size:13px; }
.timer { background:var(--gold-soft); border-radius:999px; padding:4px 16px; color:var(--gold-deep); font-family:'DM Mono',monospace; }
:root[data-theme="dark"] .timer { color:var(--gold-2); }
.timer.warning, .timer.warn { background:rgba(209,73,59,.12); }
.test-body { top:60px; bottom:60px; }

.passage-pane { padding:2.5rem 2.5rem 3rem 3rem; }
.passage-text, #passage-content { font-size:16.5px; line-height:1.9; font-weight:400; color:var(--gray-dark); }
.q-text { font-size:17px; font-weight:600; letter-spacing:-.01em; line-height:1.55; }
.q-number, .q-num { color:var(--gold-deep); }

.divider { width:8px; background:transparent; }
.divider::after { height:44px; width:4px; background:var(--gray-border); }
.divider:hover::after, .divider.dragging::after { background:var(--gold); }

.answer-option { padding:.95rem 1.1rem; box-shadow:var(--shadow-sm); align-items:center; }
.answer-letter { display:grid; place-items:center; min-width:28px; width:28px; height:28px; border-radius:50%; background:var(--gray-bg); padding:0; color:var(--gray-dark); font-weight:500; }
.answer-option:hover .answer-letter { background:var(--gold-soft); color:var(--gold-deep); }
.answer-option.selected { background:var(--gold-soft); border-color:var(--gold); box-shadow:0 0 0 3px var(--gold-soft); }
.answer-option.selected .answer-text { color:var(--black); font-weight:500; }
.answer-option.selected .answer-letter { background:var(--gold-grad); color:#fff; }
.answer-option.correct { background:#e9f6ee; border-color:var(--correct); }
.answer-option.incorrect { background:#fcefec; border-color:var(--incorrect); }
.answer-option.correct .answer-letter { background:var(--correct); color:#fff; }
.answer-option.incorrect .answer-letter { background:var(--incorrect); color:#fff; }
:root[data-theme="dark"] .answer-option.correct { background:rgba(46,160,90,.18); }
:root[data-theme="dark"] .answer-option.incorrect { background:rgba(220,90,75,.18); }
.mc-btn.sel { background:var(--gold-grad); border-color:transparent; color:#fff; }

.q-dot, .qdot { width:32px; height:32px; background:var(--card); }
.q-dot.active, .qdot.cur { background:var(--gold-grad) !important; border-color:transparent !important; color:#fff !important; }
.q-dot.answered, .qdot.ans { background:var(--gold-soft); border-color:var(--gold-2); color:var(--gold-deep); }
.q-dot.flagged, .qdot.flag { border-color:var(--incorrect); color:var(--incorrect); background:rgba(209,73,59,.08); }

.rationale-box { background:var(--gold-soft); border-color:transparent; }
.overlay-box, .obox { padding:2.25rem; }
.score-big { background:var(--gold-grad); -webkit-background-clip:text; background-clip:text; color:transparent; font-size:60px; }
.hl-btn { border-radius:50%; }
.loading-screen, .loading { background:var(--white); }

/* Phones: hide the top-bar logo and let the top-bar buttons scroll sideways,
   so every button (including "Review & Submit") can be reached. */
@media (max-width: 760px) {
  .top-bar { gap:.5rem; padding-left:.75rem; padding-right:.75rem; }
  .top-bar .top-bar-logo, .top-bar .tb-logo, .top-bar .top-bar-sep, .top-bar .tb-sep { display:none; }
  .top-bar-left { flex:0 1 auto; min-width:0; }
  .top-bar-center, .tb-center { flex-shrink:0; }
  .top-bar-right, .tb-right { flex:0 1 auto; min-width:0; flex-wrap:nowrap; overflow-x:auto; overflow-y:hidden; -webkit-overflow-scrolling:touch; }
  .top-bar-right > *, .tb-right > * { flex-shrink:0; }
}

/* Long test titles stay on one line in the top bar instead of wrapping out of it. */
.top-bar-module, .tb-module { white-space:nowrap; overflow:hidden; text-overflow:ellipsis; min-width:0; }
.top-bar-left { min-width:0; }