/* ==========================================================================
   Renshu — Core layout & components
   Built on top of css/themes.css tokens. No framework, no build step.
   ========================================================================== */

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; }
body{
  margin:0; background:var(--bg); color:var(--ink); overflow-x:hidden;
  font-family:var(--font-body); line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
button{ font-family:inherit; }
a{ color:var(--primary); }
h1,h2,h3,h4{ font-family:var(--font-display); margin:0 0 .4em; font-weight:600; line-height:1.2; }
p{ margin:0 0 1em; color:var(--muted); }
.visually-hidden{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; }
[hidden]{ display:none !important; }

.wrap{ max-width:1180px; margin:0 auto; padding:0 20px; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.5em; justify-content:center;
  border:1px solid var(--border-strong); background:var(--surface); color:var(--ink);
  font:600 .92rem var(--font-body); padding:.7em 1.3em; border-radius:var(--radius-md);
  cursor:pointer; transition:transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.btn:hover{ box-shadow:var(--shadow); transform:translateY(-1px); }
.btn:active{ transform:translateY(0); }
.btn-primary{ background:var(--primary); border-color:var(--primary); color:#fff; }
.btn-primary:hover{ background:var(--primary-ink); border-color:var(--primary-ink); }
.btn-accent{ background:var(--accent); border-color:var(--accent); color:#241705; }
.btn-ghost{ background:transparent; border-color:transparent; }
.btn-sm{ padding:.45em .9em; font-size:.82rem; border-radius:var(--radius-sm); }
.btn-icon{ width:2.4em; height:2.4em; padding:0; border-radius:50%; }
.btn:disabled{ opacity:.5; cursor:not-allowed; transform:none; }

/* ---------- Topbar ---------- */
.topbar{
  position:sticky; top:0; z-index:40; background:var(--surface);
  border-bottom:1px solid var(--border); backdrop-filter:blur(6px);
}
.topbar-inner{ display:flex; align-items:center; gap:18px; padding:12px 20px; }
.brand{ display:flex; align-items:center; gap:.6em; font-family:var(--font-display); font-weight:700; font-size:1.15rem; color:var(--ink); text-decoration:none; margin-right:auto; }
.brand-mark{
  width:34px; height:34px; border-radius:10px; background:linear-gradient(145deg, var(--primary), var(--primary-ink));
  color:#fff; display:flex; align-items:center; justify-content:center; font-family:var(--font-display); font-weight:700;
  flex:none;
}
.nav-links{ display:flex; gap:4px; }
.nav-link{
  border:none; background:transparent; color:var(--muted); font:600 .88rem var(--font-body);
  padding:.6em 1em; border-radius:var(--radius-sm); cursor:pointer; white-space:nowrap;
}
.nav-link:hover{ background:var(--surface-2); color:var(--ink); }
.nav-link.is-active{ background:var(--t-quant-bg); color:var(--t-quant); }
.streak-pill{
  display:flex; align-items:center; gap:.4em; background:var(--accent-bg); color:var(--accent);
  font:700 .82rem var(--font-mono); padding:.4em .8em; border-radius:999px; white-space:nowrap;
}
.theme-switch{ display:flex; align-items:center; gap:6px; }
.theme-dot{
  width:22px; height:22px; border-radius:50%; border:2px solid var(--border-strong); cursor:pointer; padding:0;
}
.theme-dot[data-t="blue"]{ background:linear-gradient(135deg,#1F3A93,#EEF1F6); }
.theme-dot[data-t="navy"]{ background:linear-gradient(135deg,#0B1020,#7C8DF0); }
.theme-dot[data-t="amber"]{ background:linear-gradient(135deg,#B5541F,#FBF4E9); }
.theme-dot.is-active{ border-color:var(--primary); box-shadow:0 0 0 2px var(--surface), 0 0 0 4px var(--primary); }
.avatar{
  width:36px; height:36px; border-radius:50%; background:var(--t-vocab-bg); color:var(--t-vocab);
  display:flex; align-items:center; justify-content:center; font-weight:700; font-family:var(--font-display);
  border:none; cursor:pointer; flex:none;
}
.nav-mobile-toggle{ display:none; }

@media (max-width:860px){
  .nav-links{ display:none; }
  .nav-mobile-toggle{ display:inline-flex; }
}

/* ---------- SSO nudge (shown only when running on an anonymous, no
   shared-regencyops-session identity) ---------- */
.sso-banner{
  background:var(--t-quant-bg); color:var(--t-quant); font-size:.82rem; font-weight:600;
  padding:.6em 20px; text-align:center; border-top:1px solid var(--border);
}
.sso-banner a{ color:inherit; text-decoration:underline; font-weight:700; }
.sso-banner .btn{ vertical-align:baseline; margin-left:4px; }

/* ---------- Intro slides overlay ---------- */
/* Meet Dons — embedded, auto-advancing intro carousel at the top of the
   Dashboard (not a modal overlay — it lives permanently in the page flow). */
.slides-embed{ margin-bottom:18px; position:relative; }
.slides-stage{ display:flex; align-items:center; justify-content:center; min-height:300px; padding:8px 4px 4px; overflow:hidden; }

/* Maximise / minimise the intro carousel, top-right of the card. Minimised
   keeps it narrating in a single line; maximised fills the viewport. */
.slides-size{ position:absolute; top:10px; right:12px; display:flex; gap:6px; z-index:3; }
.slides-size-btn{ width:28px; height:28px; border-radius:8px; border:1px solid var(--line); background:var(--card);
  color:var(--ink-2); font-size:13px; line-height:1; cursor:pointer; display:flex; align-items:center; justify-content:center; }
.slides-size-btn:hover{ color:var(--ink); border-color:var(--ink-3); }
.slides-embed.is-min .slides-stage{ min-height:0; max-height:44px; padding:2px 60px 2px 4px; }
.slides-embed.is-min .slides-footer{ display:none; }
.slides-embed.is-min .slide-figure, .slides-embed.is-min .slide-body,
.slides-embed.is-min .slide-stages, .slides-embed.is-min .slide-actions{ display:none; }
.slides-embed.is-max{ position:fixed; inset:16px; margin:0; z-index:80; overflow:auto;
  box-shadow:0 24px 70px rgba(0,0,0,.34); }
.slides-embed.is-max .slides-stage{ min-height:calc(100vh - 190px); }
.slide{
  max-width:760px; width:100%; text-align:center; display:none;
}
.slide.is-active{ display:block; animation:slideIn .35s ease; }
@keyframes slideIn{ from{ opacity:0; transform:translateY(10px); } to{ opacity:1; transform:none; } }
.slide-kicker{ font:700 .78rem var(--font-mono); letter-spacing:.08em; text-transform:uppercase; color:var(--primary); margin-bottom:.8em; }
.slide h2{ font-size:clamp(1.5rem,4vw,2.3rem); }
.slide-visual{ margin:1.2em auto; max-width:520px; }
.slide-body{ font-size:1.02rem; max-width:560px; margin:0 auto; }
.slide-stagelist{ display:flex; flex-wrap:wrap; gap:10px; justify-content:center; margin-top:1.2em; list-style:none; padding:0; }
.slide-stagelist li{
  background:var(--surface); border:1px solid var(--border); border-radius:999px; padding:.5em 1em;
  font:600 .82rem var(--font-body); color:var(--ink);
}
.slides-footer{ display:flex; align-items:center; justify-content:center; gap:16px; padding:12px 4px 4px; }
.slide-dots{ display:flex; gap:8px; }
.slide-dot{ width:8px; height:8px; border-radius:50%; background:var(--border-strong); border:none; cursor:pointer; padding:0; }
.slide-dot.is-active{ background:var(--primary); width:22px; border-radius:5px; transition:width .2s ease; }
.slide-avatar{ display:block; margin:0 auto .6em; }
.voice-choice{ display:flex; gap:10px; justify-content:center; flex-wrap:wrap; margin-top:.6em; }
.voice-opt, .plan-opt{ width:auto; }
.voice-opt.is-active{ background:var(--good-bg); border-color:var(--good); color:var(--good); }
.stat-bars{ max-width:640px; margin:1em auto 0; text-align:left; }
.slide .bar-row, #placementStatsGrid .bar-row, .market-grid .bar-row{ grid-template-columns:minmax(120px,190px) 1fr 88px; }
#placementStatsGrid{ grid-template-columns:repeat(auto-fit,minmax(320px,1fr)); }
#placementStatsGrid .stat-list, #placementStatsGrid .stat-bars{ margin-top:.6em; max-width:none; }
#placementStatsGrid .stat-list li{ font-size:.84rem; }
.stat-list{ max-width:600px; margin:1em auto 0; text-align:left; list-style:none; padding:0; }
.stat-list li{ background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-sm); padding:.6em .9em; margin-bottom:8px; font-size:.9rem; }
.stat-source{ font-size:.74rem; color:var(--faint); margin-top:10px; }
.stat-source a{ color:var(--faint); }

/* ---------- Animated tutor avatar ---------- */
.avatar-wrap{ position:relative; display:inline-block; line-height:0; flex:none; }
.avatar-wrap.is-listening::before{
  content:""; position:absolute; inset:-5px; border-radius:50%; border:2px solid var(--good);
  animation:avatarListen 1.3s ease-in-out infinite;
}
@keyframes avatarListen{ 0%,100%{ opacity:.35; transform:scale(1); } 50%{ opacity:.9; transform:scale(1.1); } }
.avatar-face{ width:100%; height:100%; display:block; }

/* Real supplied photo of the coach. A photograph can't mouth along the way
   the drawn face did, so "Dons is speaking" is shown as a pulsing ring
   around the avatar instead of fake lip-sync. */
.avatar-photo{
  width:100%; height:100%; display:block; border-radius:50%; object-fit:cover;
  border:3px solid var(--tc-color,var(--accent)); background:var(--tc-bg,var(--accent-bg));
}
.avatar-wrap.is-talking::after{
  content:""; position:absolute; inset:-4px; border-radius:50%; pointer-events:none;
  border:3px solid var(--tc-color,var(--accent));
  animation:avatarTalkRing .95s ease-out infinite;
}
@keyframes avatarTalkRing{ 0%{ opacity:.8; transform:scale(1); } 100%{ opacity:0; transform:scale(1.22); } }

.af-hair-back-f, .af-hair-front-f, .af-earring{ display:none; }
.af-hair-front-m{ display:block; }
.af-hair-back-f, .af-hair-front-f, .af-hair-front-m{ fill:var(--tc-color,var(--accent)); }
.af-earring{ fill:var(--accent); }
.avatar-face.gender-female .af-hair-back-f,
.avatar-face.gender-female .af-hair-front-f,
.avatar-face.gender-female .af-earring{ display:block; }
.avatar-face.gender-female .af-hair-front-m{ display:none; }

.af-brow path{ fill:none; stroke:var(--tc-color,var(--ink)); stroke-width:3; stroke-linecap:round; transform-box:fill-box; transform-origin:center; transition:transform .25s ease; }
.af-eye-white{ fill:var(--surface); stroke:var(--border-strong); stroke-width:1; }
.af-pupil{ fill:var(--ink); }
.af-lid{ fill:var(--surface); opacity:0; transform-box:fill-box; transform-origin:center; }
.avatar-face .af-lid{ animation:avatarBlink 4.6s ease-in-out infinite; }
.avatar-face .af-eye-r .af-lid{ animation-delay:.05s; }
@keyframes avatarBlink{ 0%,92%,100%{ opacity:0; } 95%{ opacity:1; } }

.af-mouth{ display:none; }
.af-mouth-neutral, .af-mouth-smile, .af-mouth-think{ fill:none; stroke:var(--tc-color,var(--ink)); stroke-width:3.4; stroke-linecap:round; }
.af-mouth-o{ fill:var(--tc-color,var(--accent)); opacity:.9; transform-box:fill-box; transform-origin:center; }
.avatar-face.expr-neutral .af-mouth-neutral,
.avatar-face.expr-smile .af-mouth-smile,
.avatar-face.expr-thinking .af-mouth-think{ display:block; }

.avatar-face.expr-thinking .af-brow-l path{ transform:translateY(-3px) rotate(-8deg); }
.avatar-face.expr-thinking .af-brow-r path{ transform:translateY(1px); }
.avatar-face.expr-smile .af-brow-l path,
.avatar-face.expr-smile .af-brow-r path{ transform:translateY(-2px); }

.avatar-face.is-talking .af-mouth-neutral,
.avatar-face.is-talking .af-mouth-smile,
.avatar-face.is-talking .af-mouth-think{ display:none; }
.avatar-face.is-talking .af-mouth-o{ display:block; animation:avatarTalk .24s ease-in-out infinite alternate; }
@keyframes avatarTalk{ from{ transform:scaleY(.35); } to{ transform:scaleY(1); } }

.slide-avatar-mount{ width:132px; height:132px; margin:0 auto .6em; }
.btn.is-listening, .mic-btn.is-listening{ animation:pulse 1.2s infinite; }

/* ---------- Code Lab ---------- */
.codelab-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:14px; }
.codelab-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:16px; text-align:left; cursor:pointer; box-shadow:var(--shadow); position:relative;
}
.codelab-card h4{ margin:0 0 6px; font-size:1rem; padding-right:26px; }
.codelab-card .cat{ font:600 .74rem var(--font-mono); color:var(--faint); text-transform:uppercase; letter-spacing:.04em; }
.codelab-card .solved-tick{ position:absolute; top:14px; right:14px; color:var(--good); font-weight:700; display:none; }
.codelab-card.is-solved .solved-tick{ display:block; }
.codelab-card.is-solved{ border-color:var(--good); }

.code-detail{ max-width:760px; }
.code-detail .prompt{ white-space:pre-wrap; font-size:.94rem; line-height:1.55; }
.code-detail .brief-reqs{ margin:10px 0 0; padding-left:20px; }
.code-detail .brief-reqs li{ margin-bottom:6px; font-size:.88rem; }
.lang-row{ display:flex; flex-wrap:wrap; gap:8px; margin:10px 0 4px; }
.lang-chip{
  font:600 .78rem var(--font-mono); color:var(--muted); background:var(--surface-2); border:1px solid var(--border);
  border-radius:99px; padding:5px 13px; cursor:pointer;
}
.lang-chip:hover{ border-color:var(--primary); }
.lang-chip.is-active{ background:var(--primary); border-color:var(--primary); color:#fff; }
.code-editor{
  width:100%; min-height:220px; font:.86rem/1.5 var(--font-mono); background:var(--surface-2);
  color:var(--ink); border:1px solid var(--border-strong); border-radius:var(--radius-md);
  padding:12px; resize:vertical; tab-size:2; white-space:pre; overflow-wrap:normal; overflow-x:auto;
}
.code-actions{ display:flex; gap:10px; flex-wrap:wrap; margin-top:12px; }
.code-results{ margin-top:14px; display:flex; flex-direction:column; gap:8px; }
.code-result-row{
  display:flex; align-items:center; gap:10px; padding:.6em .9em; border-radius:var(--radius-sm);
  font:600 .82rem var(--font-mono); border:1px solid var(--border);
}
.code-result-row.pass{ background:var(--good-bg); color:var(--good); border-color:var(--good); }
.code-result-row.fail{ background:var(--bad-bg); color:var(--bad); border-color:var(--bad); }
.code-result-row .detail{ font-weight:400; font-family:var(--font-body); font-size:.8rem; opacity:.85; }
.code-summary{ margin-top:10px; font-weight:700; }
.code-summary.pass{ color:var(--good); } .code-summary.fail{ color:var(--bad); }
.code-hint{ margin-top:10px; padding:12px; background:var(--surface-2); border-radius:var(--radius-sm); font-size:.86rem; }

/* ---------- Company patterns ---------- */
.company-group-head{ display:flex; align-items:center; gap:10px; margin:22px 0 12px; }
.company-group-head h3{ margin:0; font-size:1.05rem; }
.company-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:18px; box-shadow:var(--shadow); margin-bottom:16px;
}
.company-card .blurb{ color:var(--muted); font-size:.86rem; margin:2px 0 12px; }
.company-card .totals{ font:700 .78rem var(--font-mono); color:var(--faint); margin-bottom:10px; }
.company-table{ width:100%; border-collapse:collapse; font-size:.84rem; }
.company-table th{ text-align:left; padding:6px 8px; color:var(--faint); font:700 .7rem var(--font-mono); text-transform:uppercase; letter-spacing:.03em; border-bottom:1px solid var(--border); }
.company-table td{ padding:8px; border-bottom:1px dashed var(--border); vertical-align:top; }
.company-table .note{ color:var(--muted); font-size:.8rem; }
.company-practice-btn{ font-size:.76rem; padding:.4em .8em; white-space:nowrap; }
.company-source{ margin-top:12px; font-size:.76rem; color:var(--faint); }

/* ---------- Section shell ---------- */
.section{ padding:28px 0; }
.section-head{ display:flex; align-items:baseline; justify-content:space-between; gap:12px; margin-bottom:14px; flex-wrap:wrap; }
.section-head h2{ font-size:1.3rem; }
.section-sub{ color:var(--faint); font-size:.86rem; margin:0; }

/* ---------- Dashboard ---------- */
.dash-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr; gap:16px; }
@media (max-width:900px){ .dash-grid{ grid-template-columns:1fr; } }
.card{ background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:18px; box-shadow:var(--shadow); }
.card h3{ font-size:1rem; }
.streak-row{ display:flex; align-items:center; gap:14px; }
.streak-num{ font:700 2.2rem var(--font-display); color:var(--primary); }
.streak-cal-label{ margin:12px 0 4px; font:600 .72rem var(--font-mono); text-transform:uppercase; letter-spacing:.05em; color:var(--muted); }
.streak-cal-weekdays{ display:grid; grid-template-columns:repeat(7,1fr); gap:6px; margin-bottom:4px; }
.streak-cal-weekdays div{ text-align:center; font:600 .66rem var(--font-mono); color:var(--faint); }
.streak-cal{ display:grid; grid-template-columns:repeat(7,1fr); gap:6px; }
.streak-cal .d{
  aspect-ratio:1; border-radius:6px; background:var(--surface-2); display:flex; align-items:center; justify-content:center;
  font:600 .68rem var(--font-mono); color:var(--faint);
}
.streak-cal .d.done{ background:var(--good-bg); color:var(--good); }
.streak-cal .d.today{ outline:2px solid var(--primary); }
.streak-cal .d.month-start{ font-weight:700; }
.streak-cal .d.month-start .d-num{ font-size:.6rem; letter-spacing:.02em; }
.qotd-badge{ font:700 .72rem var(--font-mono); text-transform:uppercase; letter-spacing:.06em; color:var(--accent); }
.qotd-q{ font-size:1rem; font-weight:600; color:var(--ink); margin:.5em 0 1em; }
.qotd-opts{ display:grid; gap:8px; }
.qotd-opt{
  text-align:left; background:var(--surface-2); border:1px solid var(--border); border-radius:var(--radius-sm);
  padding:.6em .9em; cursor:pointer; font:600 .86rem var(--font-body); color:var(--ink);
}
.qotd-opt:hover{ border-color:var(--primary); }
.qotd-opt.correct{ background:var(--good-bg); border-color:var(--good); color:var(--good); }
.qotd-opt.wrong{ background:var(--bad-bg); border-color:var(--bad); color:var(--bad); }
.mini-cal{ display:grid; grid-template-columns:repeat(7,1fr); gap:4px; font:600 .72rem var(--font-mono); text-align:center; }
.mini-cal .lab{ color:var(--faint); padding-bottom:4px; }
.mini-cal .cell{ padding:.4em 0; border-radius:6px; color:var(--muted); }
.mini-cal .cell.active{ background:var(--t-quant-bg); color:var(--t-quant); font-weight:700; }
.stat-row{ display:flex; justify-content:space-between; padding:.5em 0; border-bottom:1px dashed var(--border); font-size:.86rem; }
.stat-row:last-child{ border-bottom:none; }
.stat-row b{ color:var(--ink); }

/* ---------- Practices grid ---------- */
.topic-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(230px,1fr)); gap:16px; }
.topic-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:18px; text-align:left; cursor:pointer; box-shadow:var(--shadow); position:relative; overflow:hidden;
}
.topic-card::before{
  content:""; position:absolute; inset:0 0 auto 0; height:4px; background:var(--tc-color,var(--primary));
}
.topic-card .ic{
  width:44px; height:44px; border-radius:12px; display:flex; align-items:center; justify-content:center;
  font-size:1.3rem; margin-bottom:12px; background:var(--tc-bg,var(--t-quant-bg)); color:var(--tc-color,var(--t-quant));
}
.topic-card h4{ font-size:1.02rem; margin-bottom:.25em; }
.topic-card .desc{ font-size:.82rem; color:var(--muted); min-height:2.6em; }
.topic-card .prog{ margin-top:12px; }
.progbar{ height:6px; border-radius:99px; background:var(--surface-2); overflow:hidden; }
.progbar > span{ display:block; height:100%; background:var(--tc-color,var(--primary)); border-radius:99px; }
.topic-card .pct{ font:700 .72rem var(--font-mono); color:var(--faint); margin-top:4px; display:block; }

/* ---------- Domain grouping ---------- */
.domain-section{ margin-bottom:28px; }
.domain-head{ display:flex; align-items:center; gap:12px; margin-bottom:14px; }
.domain-ic{
  width:38px; height:38px; border-radius:10px; display:flex; align-items:center; justify-content:center;
  font-size:1.1rem; background:color-mix(in srgb, var(--tc-color,var(--primary)) 16%, transparent); color:var(--tc-color,var(--primary));
  flex-shrink:0;
}
.domain-head h3{ margin:0; font-size:1.06rem; }
.domain-grid{ margin-top:0; }
.topic-card.coming-soon{ opacity:.72; }
.topic-card.coming-soon .desc{ min-height:auto; }

/* ---------- Practices: subject rail + areas panel ----------
   The rail hugs the left edge of the WINDOW (not the centred content
   column), so the areas panel gets the full remaining width. The section
   breaks out of .wrap with the standard full-bleed trick; body's
   overflow-x:hidden absorbs the scrollbar overshoot that 100vw causes. */
.practice-browser{
  --rail-w:264px;
  width:100vw; margin-left:calc(50% - 50vw);
  display:grid; grid-template-columns:var(--rail-w) minmax(0,1fr); gap:0; align-items:start;
}
.practice-browser.is-collapsed{ --rail-w:60px; }

.domain-rail{
  position:sticky; top:64px; align-self:start; max-height:calc(100vh - 64px); overflow-y:auto;
  display:flex; flex-direction:column; gap:6px;
  background:var(--surface); border-right:1px solid var(--border);
  padding:12px 10px 20px; transition:padding .18s ease;
}
.practice-browser.is-collapsed .domain-rail{ padding:12px 6px 20px; align-items:center; }

.rail-toggle{
  align-self:flex-end; width:30px; height:30px; flex:none; margin-bottom:6px;
  border:1px solid var(--border); background:var(--surface-2); color:var(--muted);
  border-radius:8px; cursor:pointer; font-size:.85rem; line-height:1;
}
.rail-toggle:hover{ border-color:var(--primary); color:var(--primary); }
.practice-browser.is-collapsed .rail-toggle{ align-self:center; }
.rail-list{ display:flex; flex-direction:column; gap:6px; }

.domain-tab{
  display:flex; align-items:center; gap:11px; width:100%; text-align:left; cursor:pointer;
  background:transparent; border:1px solid transparent; border-radius:var(--radius); padding:10px 11px;
}
.domain-tab:hover{ background:var(--surface-2); }
.domain-tab.is-active{ background:var(--tc-bg,var(--surface-2)); border-color:var(--tc-color,var(--primary)); }
.dt-ic{
  width:34px; height:34px; flex:none; border-radius:9px; display:flex; align-items:center; justify-content:center;
  font-size:1rem; background:var(--tc-bg,var(--surface-2)); color:var(--tc-color,var(--primary));
}
.domain-tab.is-active .dt-ic{ background:var(--tc-color,var(--primary)); color:#fff; }
.dt-main{ display:flex; flex-direction:column; gap:1px; min-width:0; }
.dt-name{ font-weight:650; font-size:.92rem; color:var(--ink); }
.domain-tab.is-active .dt-name{ color:var(--tc-color,var(--primary)); }
.dt-count{ font:600 .7rem var(--font-mono); color:var(--faint); }
.practice-browser.is-collapsed .dt-main{ display:none; }
.practice-browser.is-collapsed .domain-tab{ padding:8px; justify-content:center; }

.domain-panel{ padding:4px 24px 0 26px; min-width:0; }
.domain-panel-head{ display:flex; align-items:center; gap:12px; margin-bottom:14px; }
.dp-ic{
  width:42px; height:42px; flex:none; border-radius:11px; display:flex; align-items:center; justify-content:center;
  font-size:1.2rem; background:var(--tc-bg,var(--surface-2)); color:var(--tc-color,var(--primary));
}
.domain-panel-head h3{ margin:0 0 2px; font-size:1.1rem; }

.topic-rows{ display:flex; flex-direction:column; gap:8px; }
.topic-row{
  display:grid; grid-template-columns:44px minmax(0,1fr) 150px 20px; align-items:center; gap:14px;
  width:100%; text-align:left; cursor:pointer; padding:13px 15px;
  background:var(--surface); border:1px solid var(--border); border-left:4px solid var(--tc-color,var(--primary));
  border-radius:var(--radius); box-shadow:var(--shadow);
}
.topic-row:hover{ border-color:var(--tc-color,var(--primary)); transform:translateX(2px); }
.tr-ic{
  width:40px; height:40px; border-radius:10px; display:flex; align-items:center; justify-content:center;
  font-size:1.1rem; background:var(--tc-bg,var(--surface-2)); color:var(--tc-color,var(--primary));
}
.tr-main{ display:flex; flex-direction:column; gap:2px; min-width:0; }
.tr-name{ font-weight:650; font-size:.97rem; color:var(--ink); }
.tr-desc{ font-size:.8rem; color:var(--muted); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.tr-meta{ display:flex; flex-direction:column; gap:4px; }
.tr-meta .pct{ font:700 .7rem var(--font-mono); color:var(--faint); }
.tr-go{ color:var(--faint); font-size:1rem; text-align:right; }
.topic-row.coming-soon{ opacity:.7; }
.topic-row.coming-soon .tr-meta{ align-items:flex-start; }
.topic-row.coming-soon .soon-badge{ margin-top:0; }

@media (max-width:860px){
  .practice-browser, .practice-browser.is-collapsed{ grid-template-columns:minmax(0,1fr); }
  .domain-rail{
    position:static; flex-direction:row; overflow-x:auto; max-height:none;
    gap:8px; border-right:none; border-bottom:1px solid var(--border); padding:10px 14px;
  }
  .rail-list{ flex-direction:row; }
  .rail-toggle{ display:none; }
  .practice-browser.is-collapsed .dt-main{ display:flex; }
  .domain-tab{ width:auto; flex:none; }
  .dt-count{ display:none; }
  .domain-panel{ padding:14px 16px 0; }
  .topic-row{ grid-template-columns:40px minmax(0,1fr); gap:11px; }
  .tr-meta, .tr-go{ grid-column:2; }
  .tr-desc{ white-space:normal; }
}

.soon-badge{
  display:inline-block; margin-top:10px; font:700 .68rem var(--font-mono); text-transform:uppercase; letter-spacing:.04em;
  color:var(--muted); background:var(--surface-2); border:1px solid var(--border); border-radius:99px; padding:3px 10px;
}
.cover-chips{ display:flex; flex-wrap:wrap; gap:6px; margin-top:6px; }
.cover-chip{
  font:600 .74rem var(--font-mono); color:var(--muted); background:var(--surface-2); border:1px solid var(--border);
  border-radius:99px; padding:4px 10px;
}

/* ---------- Difficulty tiers ---------- */
.difficulty-row{ display:flex; flex-wrap:wrap; gap:8px; margin:8px 0 16px; }
.diff-chip{
  font:600 .76rem var(--font-body); color:var(--muted); background:var(--surface-2); border:1px solid var(--border);
  border-radius:99px; padding:5px 12px; cursor:pointer;
}
.diff-chip:hover{ border-color:var(--primary); }
.diff-chip.is-active{ background:var(--primary); border-color:var(--primary); color:#fff; }
.diff-badge{
  display:inline-block; vertical-align:middle; font:700 .66rem var(--font-mono); text-transform:uppercase; letter-spacing:.04em;
  border-radius:99px; padding:2px 9px; margin-left:6px;
}
.diff-badge.diff-simple{ background:var(--good-bg); color:var(--good); }
.diff-badge.diff-medium{ background:var(--accent-bg); color:var(--accent); }
.diff-badge.diff-hard{ background:var(--t-quant-bg); color:var(--t-quant); }
.diff-badge.diff-superhard{ background:var(--bad-bg); color:var(--bad); }

/* ---------- Concept-first Learn step ---------- */
.concept-card, .concept-recap{ border-left:3px solid var(--primary); }

/* ---------- Streak calendar month/day-of-week ---------- */
/* (rules for .streak-cal-label / .streak-cal-weekdays live near .streak-cal below) */

/* ---------- Analytics ---------- */
.analytics-grid{ display:grid; grid-template-columns:1.3fr 1fr; gap:16px; }
@media (max-width:900px){ .analytics-grid{ grid-template-columns:1fr; } }
.bar-row{ display:grid; grid-template-columns:110px 1fr 40px; align-items:center; gap:10px; margin:10px 0; font-size:.82rem; }
.bar-row .lab{ color:var(--muted); font-weight:600; }
.bar-track{ height:10px; background:var(--surface-2); border-radius:99px; overflow:hidden; }
.bar-fill{ display:block; height:100%; border-radius:99px; background:var(--primary); }
.bar-row .val{ white-space:nowrap; font:700 .78rem var(--font-mono); text-align:right; color:var(--ink); }
.trend-svg{ width:100%; height:160px; }
.leaderboard{ list-style:none; margin:0; padding:0; }
.leaderboard li{ display:flex; align-items:center; gap:10px; padding:.5em 0; border-bottom:1px solid var(--border); font-size:.86rem; }
.leaderboard li:last-child{ border-bottom:none; }
.leaderboard .rank{ font:700 .82rem var(--font-mono); color:var(--faint); width:1.6em; }
.leaderboard .name{ flex:1; font-weight:600; }
.leaderboard .pts{ font:700 .8rem var(--font-mono); color:var(--primary); }
.leaderboard li.me{ background:var(--t-quant-bg); border-radius:var(--radius-sm); padding:.5em .6em; }

/* ---------- Topic detail / voice-guided flow ---------- */
.topic-hero{ display:flex; align-items:center; gap:16px; margin-bottom:18px; flex-wrap:wrap; }
.topic-hero .ic{ width:56px; height:56px; border-radius:14px; display:flex; align-items:center; justify-content:center; font-size:1.6rem; }
.tabs{ display:flex; gap:6px; border-bottom:1px solid var(--border); margin-bottom:18px; overflow-x:auto; }
.tab{ border:none; background:transparent; padding:.8em 1.1em; font:700 .84rem var(--font-body); color:var(--muted); cursor:pointer; border-bottom:2px solid transparent; white-space:nowrap; }
.tab.is-active{ color:var(--primary); border-color:var(--primary); }
.panel{ min-height:200px; }

.coach-bubble{
  display:flex; gap:12px; background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:16px; margin-bottom:18px; box-shadow:var(--shadow);
}
.coach-avatar{ width:60px; height:60px; border-radius:50%; flex:none; }
.coach-text{ font-size:.94rem; color:var(--ink); }
.coach-text .speak-btn{ margin-top:8px; }

.flash-stage{ display:flex; flex-direction:column; align-items:center; gap:14px; }
.flashcard{ width:100%; max-width:480px; height:220px; perspective:1200px; cursor:pointer; }
.flashcard-inner{ position:relative; width:100%; height:100%; transition:transform .5s; transform-style:preserve-3d; }
.flashcard.is-flipped .flashcard-inner{ transform:rotateY(180deg); }
.flashcard-face{
  position:absolute; inset:0; backface-visibility:hidden; border-radius:var(--radius-lg); border:1px solid var(--border);
  display:flex; align-items:center; justify-content:center; text-align:center; padding:20px; font-weight:600;
  background:var(--surface); box-shadow:var(--shadow);
}
.flashcard-face.back{ transform:rotateY(180deg); background:var(--t-quant-bg); color:var(--t-quant); }

.quiz-q{ font-size:1.05rem; font-weight:600; margin-bottom:14px; }
.quiz-opts{ display:grid; gap:10px; margin-bottom:14px; }
.quiz-opt{ text-align:left; background:var(--surface); border:1px solid var(--border-strong); border-radius:var(--radius-md); padding:.8em 1em; cursor:pointer; font-size:.92rem; color:var(--ink); font-family:inherit; }
.quiz-opt:hover{ border-color:var(--primary); }
.quiz-opt.sel{ border-color:var(--primary); background:var(--t-quant-bg); }
.quiz-opt.correct{ border-color:var(--good); background:var(--good-bg); color:var(--good); }
.quiz-opt.wrong{ border-color:var(--bad); background:var(--bad-bg); color:var(--bad); }
.quiz-reason{ width:100%; border:1px solid var(--border-strong); border-radius:var(--radius-md); padding:.8em; font:inherit; background:var(--surface); color:var(--ink); resize:vertical; min-height:70px; }
.quiz-feedback{ margin-top:14px; padding:14px; border-radius:var(--radius-md); background:var(--surface-2); font-size:.9rem; }

.example-card{ background:var(--surface-2); border-left:3px solid var(--primary); border-radius:var(--radius-sm); padding:12px 14px; margin:10px 0; font-size:.88rem; }

/* ---------- Chat & voice widget ---------- */
.dons-fab{
  position:fixed; right:22px; bottom:22px; z-index:60; width:58px; height:58px; border-radius:50%;
  background:var(--primary); color:#fff; border:none; box-shadow:var(--shadow); cursor:pointer; font-size:1.4rem;
  display:flex; align-items:center; justify-content:center;
}
.chat-panel{
  position:fixed; right:22px; bottom:92px; z-index:60; width:min(360px,90vw); height:min(520px,70vh);
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); box-shadow:var(--shadow);
  display:flex; flex-direction:column; overflow:hidden;
}
.chat-head{ display:flex; align-items:center; gap:10px; padding:12px 14px; border-bottom:1px solid var(--border); }
.chat-head .mic-btn{ margin-left:auto; }
.chat-body{ flex:1; overflow-y:auto; padding:14px; display:flex; flex-direction:column; gap:10px; }
.chat-msg{ max-width:82%; padding:.6em .9em; border-radius:var(--radius-md); font-size:.86rem; }
.chat-msg.bot{ background:var(--surface-2); align-self:flex-start; }
.chat-msg.user{ background:var(--primary); color:#fff; align-self:flex-end; }
.chat-input-row{ display:flex; gap:8px; padding:10px; border-top:1px solid var(--border); }
.chat-input-row input{ flex:1; border:1px solid var(--border-strong); border-radius:var(--radius-md); padding:.6em .8em; background:var(--surface); color:var(--ink); font:inherit; }
.mic-btn.is-listening{ animation:pulse 1.2s infinite; }
@keyframes pulse{ 0%,100%{ box-shadow:0 0 0 0 rgba(31,58,147,.4); } 50%{ box-shadow:0 0 0 8px rgba(31,58,147,0); } }

/* ---------- Help modal ---------- */
.modal-scrim{ position:fixed; inset:0; background:rgba(10,14,26,.5); z-index:90; display:flex; align-items:center; justify-content:center; padding:20px; }
.modal{ background:var(--surface); border-radius:var(--radius-lg); max-width:600px; width:100%; max-height:82vh; overflow-y:auto; padding:26px; box-shadow:var(--shadow); }
.modal h3{ margin-top:0; }
.modal-close{ float:right; }
.modal-wide{ max-width:860px; }

/* ---------- Study plan ---------- */
.plan-choice{ display:flex; flex-wrap:wrap; gap:8px; justify-content:center; }
.plan-choice .plan-opt{ flex:0 1 auto; }
.plan-choice .plan-opt.is-active{ border-color:var(--primary); background:var(--primary-bg,var(--surface-2)); color:var(--primary); font-weight:650; }
.plan-card-head{ display:flex; align-items:flex-start; justify-content:space-between; gap:14px; flex-wrap:wrap; }

.plan-summary{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:12px;
  margin:14px 0 18px; padding:14px; background:var(--surface-2); border-radius:var(--radius);
}
.ps-label{ display:block; font:700 .68rem var(--font-mono); text-transform:uppercase; letter-spacing:.05em; color:var(--faint); margin-bottom:3px; }

.plan-days{ display:flex; flex-direction:column; gap:6px; }
.plan-day{
  display:grid; grid-template-columns:120px minmax(0,1fr) 70px 78px 70px; gap:12px; align-items:center;
  padding:10px 12px; border:1px solid var(--border); border-left:4px solid var(--border-strong);
  border-radius:var(--radius); background:var(--surface); font-size:.86rem;
}
.plan-day.is-done{ border-left-color:var(--good); background:color-mix(in srgb, var(--good) 7%, var(--surface)); }
.plan-day.is-today{ border-left-color:var(--primary); box-shadow:0 0 0 2px color-mix(in srgb, var(--primary) 22%, transparent); }
.plan-day.is-missed{ opacity:.72; border-left-color:var(--warn,var(--border-strong)); }
.pd-day{ font:700 .78rem var(--font-mono); color:var(--ink); display:flex; flex-direction:column; }
.pd-date{ font-weight:500; color:var(--faint); }
.pd-main{ display:flex; flex-direction:column; min-width:0; }
.pd-topic{ font-weight:650; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.pd-focus{ font-size:.78rem; color:var(--muted); }
.pd-mins, .pd-state{ font:600 .76rem var(--font-mono); color:var(--muted); }
.plan-day.is-done .pd-state{ color:var(--good); }
.plan-day.is-today .pd-state{ color:var(--primary); font-weight:700; }

@media (max-width:720px){
  .plan-day{ grid-template-columns:minmax(0,1fr) 70px; row-gap:6px; }
  .pd-day{ grid-column:1/-1; flex-direction:row; gap:8px; }
  .pd-mins{ text-align:right; }
  .pd-state, .pd-go{ grid-column:span 1; }
}
.help-item{ margin-bottom:16px; }
.help-item h4{ font-size:.92rem; margin-bottom:.3em; }
.help-item p{ font-size:.86rem; margin:0; }

/* ---------- Notes ---------- */
.notes-list{ display:grid; gap:12px; }
.note-card{ background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-md); padding:14px 16px; }
.note-card h4{ font-size:.92rem; margin-bottom:.3em; }
.note-card p{ margin:0; font-size:.85rem; }

footer.site-footer{ text-align:center; padding:26px 20px 40px; color:var(--faint); font-size:.78rem; }

/* ---------- Mock Interview ---------- */
.iv-round-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(250px,1fr)); gap:16px; }
.iv-round{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:20px; text-align:left; cursor:pointer; box-shadow:var(--shadow); position:relative; overflow:hidden;
}
.iv-round::before{ content:""; position:absolute; inset:0 0 auto 0; height:4px; background:var(--primary); }
.iv-round:hover{ border-color:var(--primary); }
.iv-round-full::before{ background:var(--accent); }
.iv-ic{ font-size:1.7rem; display:block; margin-bottom:8px; }
.iv-round h3{ margin:0 0 .35em; font-size:1.05rem; }
.iv-round p{ margin:0; font-size:.84rem; color:var(--muted); }
.iv-count{ display:inline-block; margin-top:12px; font:700 .7rem var(--font-mono); color:var(--faint); }

.iv-bar{ display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:14px; flex-wrap:wrap; }
.iv-progress{ font:700 .76rem var(--font-mono); color:var(--muted); text-transform:uppercase; letter-spacing:.04em; }
.iv-question-card{ max-width:760px; }
.iv-round-tag{
  display:inline-block; font:700 .68rem var(--font-mono); text-transform:uppercase; letter-spacing:.05em;
  color:var(--primary); background:var(--surface-2); border-radius:99px; padding:3px 10px; margin-bottom:10px;
}
.iv-q{ font-size:1.22rem; margin:0 0 .5em; line-height:1.35; }
.iv-star{
  font-size:.82rem; color:var(--accent-ink,var(--accent)); background:var(--accent-bg);
  border-radius:var(--radius); padding:7px 11px; margin:0 0 10px; display:inline-block;
}
.iv-answer{ min-height:130px; }
.iv-notes{
  margin-top:10px; padding:12px 14px; border-radius:var(--radius);
  background:var(--surface-2); font-size:.86rem; line-height:1.55;
}
.iv-look{ margin-top:14px; padding:14px; border:1px dashed var(--border-strong); border-radius:var(--radius); }
.iv-look h4{ margin:0 0 .5em; font-size:.92rem; }
.iv-look ul{ margin:0; padding-left:20px; }
.iv-look li{ font-size:.86rem; margin-bottom:5px; color:var(--muted); }
.iv-why{ margin:12px 0 0; font-size:.84rem; color:var(--muted); }
.iv-fb-inline{ display:block; margin-top:8px; font-size:.85rem; color:var(--muted); }
.iv-offline{
  margin-top:12px; padding:12px 14px; border-radius:var(--radius); font-size:.86rem; line-height:1.55;
  background:var(--surface-2); border:1px solid var(--border); color:var(--muted);
}

/* ---------- Worked solution (answer key) ---------- */
.solution-block{ padding:0; background:transparent; border:none; }
.sol-verdict{
  display:flex; align-items:center; gap:10px; flex-wrap:wrap;
  font-weight:700; padding:10px 14px; border-radius:var(--radius); margin-bottom:12px;
}
.sol-verdict.is-right{ background:var(--good-bg); color:var(--good); }
.sol-verdict.is-wrong{ background:var(--bad-bg,var(--surface-2)); color:var(--bad,var(--ink)); }
.sol-answer{ font:600 .86rem var(--font-mono); opacity:.95; }
.sol-steps, .sol-why, .sol-trap, .sol-dons{
  border:1px solid var(--border); border-radius:var(--radius); padding:12px 15px; margin-bottom:10px; background:var(--surface);
}
.sol-steps h4, .sol-why h4, .sol-trap h4{
  margin:0 0 .5em; font:700 .72rem var(--font-mono); text-transform:uppercase; letter-spacing:.06em; color:var(--faint);
}
.sol-steps ol{ margin:0; padding-left:20px; }
.sol-steps li{ margin-bottom:6px; font-size:.92rem; line-height:1.55; color:var(--ink); }
.sol-steps li:last-child{ margin-bottom:0; font-weight:600; }
.sol-why p, .sol-trap p{ margin:0; font-size:.9rem; line-height:1.6; }
.sol-trap{ border-style:dashed; }
.sol-dons{ background:var(--surface-2); font-size:.9rem; }

/* Code inside questions, options, flashcards and worked examples */
.q-prose{ display:block; }
.q-code{
  margin:10px 0 0; padding:12px 14px; border-radius:var(--radius);
  background:var(--surface-2); border:1px solid var(--border);
  font:500 .86rem/1.5 var(--font-mono); color:var(--ink);
  white-space:pre; overflow-x:auto;
}
.quiz-opt{ white-space:pre-wrap; }
.example-card .q-code{ background:var(--surface); }
.example-card .sol-steps{ margin-top:10px; border:none; padding:0; background:transparent; }
.example-card .sol-steps li{ font-size:.86rem; }

/* Previous attempt shown above the box when re-answering an interview question */
.iv-prev{
  margin:0 0 12px; padding:12px 14px; border-radius:var(--radius);
  background:var(--surface-2); border:1px dashed var(--border-strong);
}
.iv-prev h4{ margin:0 0 .4em; font:700 .72rem var(--font-mono); text-transform:uppercase; letter-spacing:.06em; color:var(--faint); }
.iv-prev p{ margin:0 0 10px; font-size:.88rem; line-height:1.6; color:var(--muted); }

/* Stage chips light up as Dons narrates them */
.slide-stagelist li{ transition:background .25s ease, border-color .25s ease, color .25s ease, transform .25s ease; }
.slide-stagelist li.is-speaking{
  background:var(--primary); border-color:var(--primary); color:#fff; transform:translateY(-2px);
  box-shadow:0 4px 14px -4px var(--primary);
}
.slide-stagelist li.is-spoken{ border-color:var(--primary); color:var(--primary); }

/* Study-plan start date row */
.plan-date-row{ display:flex; align-items:center; justify-content:center; gap:8px; flex-wrap:wrap; margin-top:12px; }
.plan-date-row label{ font-size:.84rem; color:var(--muted); }
.plan-date-row input[type="date"]{
  font:600 .86rem var(--font-body); padding:.45em .7em; border-radius:var(--radius-sm);
  border:1px solid var(--border-strong); background:var(--surface); color:var(--ink);
}

/* "Practising for: <pattern>" banner when Code Lab is opened from Test Patterns */
.codelab-context{
  display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap;
  margin-bottom:16px; padding:12px 15px; border-radius:var(--radius);
  background:var(--accent-bg); border:1px solid var(--accent); font-size:.9rem;
}
.codelab-context .section-sub{ display:inline; }

/* ==========================================================================
   Analytics
   Chart colour follows the job: magnitude bars and the trend line use ONE
   hue (length/position carries the value); status colours are reserved for
   strength/weakness and always ship with an icon and a word.
   ========================================================================== */
.kpi-row{ display:grid; grid-template-columns:repeat(auto-fit,minmax(170px,1fr)); gap:14px; margin-bottom:18px; }
.kpi{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:16px 18px; display:flex; flex-direction:column; gap:2px; box-shadow:var(--shadow);
}
.kpi-label{ font:700 .68rem var(--font-mono); text-transform:uppercase; letter-spacing:.06em; color:var(--faint); }
.kpi-value{ font-family:var(--font-display); font-size:2rem; font-weight:700; color:var(--ink); line-height:1.1; }
.kpi-sub{ font-size:.78rem; color:var(--muted); }

.chart-head{ display:flex; align-items:flex-start; justify-content:space-between; gap:14px; flex-wrap:wrap; margin-bottom:12px; }
.seg{ display:inline-flex; border:1px solid var(--border-strong); border-radius:99px; overflow:hidden; }
.seg-btn{
  border:none; background:transparent; cursor:pointer; padding:.4em 1em;
  font:600 .8rem var(--font-body); color:var(--muted);
}
.seg-btn.is-active{ background:var(--primary); color:#fff; }

.chart-wrap{ position:relative; }
.chart-svg{ width:100%; height:auto; display:block; overflow:visible; }
.grid-line{ stroke:var(--border); stroke-width:1; }
.axis-label{ font:500 10px var(--font-mono); fill:var(--faint); }
.point-label{ font:700 11px var(--font-mono); fill:var(--ink); }
.trend-line{ fill:none; stroke:var(--primary); stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
.trend-area{ fill:var(--primary); opacity:.10; }
.trend-dot{ fill:var(--primary); stroke:var(--surface); stroke-width:2; }
.trend-dot.is-hover{ r:7; }
.crosshair{ stroke:var(--border-strong); stroke-width:1; stroke-dasharray:3 3; }
.chart-tip{
  position:absolute; pointer-events:none; z-index:5; min-width:120px;
  background:var(--surface); border:1px solid var(--border-strong); border-radius:var(--radius-sm);
  box-shadow:var(--shadow); padding:8px 10px; font-size:.8rem; line-height:1.45;
}
.chart-empty{ color:var(--faint); font-size:.88rem; padding:22px 0; text-align:center; margin:0; }
.chart-table{ margin-top:12px; }
.chart-table summary{ cursor:pointer; font:600 .8rem var(--font-body); color:var(--muted); }
.data-table{ width:100%; border-collapse:collapse; margin-top:10px; font-size:.84rem; }
.data-table th, .data-table td{ text-align:left; padding:6px 8px; border-bottom:1px solid var(--border); }
.data-table th{ font:700 .7rem var(--font-mono); text-transform:uppercase; letter-spacing:.05em; color:var(--faint); }

/* Magnitude bars — one hue, direct labels */
.hbar{ display:grid; grid-template-columns:minmax(90px,150px) 1fr 74px; align-items:center; gap:12px; margin:11px 0; }
.hbar-label{ font-size:.84rem; font-weight:600; color:var(--ink); }
.hbar-track{ height:12px; border-radius:99px; background:var(--surface-2); display:block; overflow:hidden; }
.hbar-fill{ display:block; height:100%; background:var(--primary); border-radius:0 4px 4px 0; }
.hbar-val{ font:700 .8rem var(--font-mono); color:var(--ink); text-align:right; white-space:nowrap; }
.hbar-n{ display:block; font-weight:500; font-size:.68rem; color:var(--faint); }

/* Strength / weakness — status colour + icon + word, never colour alone */
.sw-head{ font:700 .7rem var(--font-mono); text-transform:uppercase; letter-spacing:.06em; color:var(--faint); margin:0 0 8px; }
.sw-row{
  display:flex; align-items:center; gap:11px; width:100%; text-align:left; cursor:pointer;
  background:var(--surface); border:1px solid var(--border); border-left:4px solid var(--border-strong);
  border-radius:var(--radius); padding:9px 12px; margin-bottom:6px;
}
.sw-row:hover{ border-color:var(--primary); }
.sw-icon{ font-size:.8rem; width:16px; text-align:center; }
.sw-main{ display:flex; flex-direction:column; min-width:0; flex:1; }
.sw-name{ font-weight:650; font-size:.9rem; color:var(--ink); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.sw-word{ font-size:.75rem; color:var(--muted); }
.sw-pct{ font:700 .85rem var(--font-mono); color:var(--ink); }
.sw-row.is-good{ border-left-color:var(--good); } .sw-row.is-good .sw-icon{ color:var(--good); }
.sw-row.is-mid{ border-left-color:var(--accent); } .sw-row.is-mid .sw-icon{ color:var(--accent); }
.sw-row.is-weak{ border-left-color:var(--bad); } .sw-row.is-weak .sw-icon{ color:var(--bad); }

/* Consistency grid — one hue, light → dark */
.heat-grid{ display:grid; grid-template-rows:repeat(7,15px); grid-auto-flow:column; grid-auto-columns:15px; gap:4px; overflow-x:auto; padding-bottom:4px; }
.heat-cell{
  width:15px; height:15px; border-radius:3px; display:inline-block;
  background:var(--surface-2); border:1px solid var(--border);
}
.heat-cell.is-on{ background:var(--primary); border-color:var(--primary); }
.heat-cell.is-today{ outline:2px solid var(--accent); outline-offset:1px; }
.heat-months{ display:grid; grid-auto-flow:column; grid-auto-columns:19px; gap:0; margin-bottom:5px; }
.heat-month{ font:600 .66rem var(--font-mono); color:var(--faint); }
.heat-legend{ display:flex; align-items:center; gap:6px; margin-top:10px; font:600 .72rem var(--font-mono); color:var(--faint); }

/* ---------- Drawn figures for visual-reasoning questions ---------- */
.figure-block{
  --fig-ink: var(--ink); --fig-soft: var(--border-strong);
  margin:14px 0 4px; padding:16px 14px; border:1px solid var(--border);
  border-radius:var(--radius); background:var(--surface);
}
.fig-row{ display:flex; flex-wrap:wrap; align-items:flex-start; justify-content:center; gap:14px; }
/* A matrix figure (cols set) lays out as a real grid so a 3x3 stays 3x3. */
.fig-row.is-grid{ display:grid; grid-template-columns:repeat(var(--fig-cols),auto); justify-content:center; }
.fig-row.has-dividers{ gap:8px; }
.fig-cell{ margin:0; display:flex; flex-direction:column; align-items:center; gap:5px; }
.fig-cell-svg{
  width:92px; height:92px; display:block;
  background:var(--surface-2); border:1px solid var(--border); border-radius:var(--radius-sm);
}
.fig-cell figcaption{ font:700 .72rem var(--font-mono); color:var(--muted); }
.fig-arrow{ align-self:center; color:var(--faint); font-size:1.1rem; margin-top:-14px; }
.fig-caption{ margin:12px 0 0; text-align:center; font-size:.8rem; color:var(--muted); }
@media (max-width:560px){ .fig-cell-svg{ width:74px; height:74px; } }

/* ---------- DSA problem index ---------- */
.seg-count{ font:700 .68rem var(--font-mono); opacity:.7; margin-left:5px; }
#dsaLevels{ flex-wrap:wrap; margin-bottom:16px; border-radius:var(--radius); }
.dsa-blurb{ margin-bottom:18px; }
.dsa-group{ margin-bottom:24px; }
.dsa-group h3{ font-size:1rem; margin-bottom:10px; }
.dsa-count{ font:700 .7rem var(--font-mono); color:var(--faint); }
.dsa-list{ display:flex; flex-direction:column; gap:8px; }
.dsa-item{
  display:grid; grid-template-columns:38px minmax(0,1fr) auto; align-items:center; gap:12px;
  padding:11px 14px; background:var(--surface); border:1px solid var(--border);
  border-left:4px solid var(--border-strong); border-radius:var(--radius);
}
.dsa-item.is-runnable{ border-left-color:var(--t-code); }
.dsa-item.is-solved{ border-left-color:var(--good); background:color-mix(in srgb, var(--good) 5%, var(--surface)); }
.dsa-n{ font:700 .85rem var(--font-mono); color:var(--faint); text-align:right; }
.dsa-main{ min-width:0; }
.dsa-title{ font-weight:650; font-size:.94rem; color:var(--ink); display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.dsa-approach{ font-size:.83rem; color:var(--muted); margin-top:3px; }
.dsa-meta{ display:flex; gap:10px; flex-wrap:wrap; margin-top:5px; }
.dsa-pattern, .dsa-cx{ font:600 .72rem var(--font-mono); color:var(--faint); }
.dsa-pattern{ background:var(--surface-2); border-radius:99px; padding:2px 9px; }
.dsa-solved{ font:700 .7rem var(--font-mono); color:var(--good); }
.dsa-study{ font:600 .72rem var(--font-mono); color:var(--faint); }
.domain-tab.dsa-tab{ border-bottom:1px solid var(--border); border-radius:var(--radius) var(--radius) 0 0; margin-bottom:4px; padding-bottom:12px; }
@media (max-width:640px){
  .dsa-item{ grid-template-columns:30px minmax(0,1fr); }
  .dsa-item .btn, .dsa-study{ grid-column:2; justify-self:start; }
}

/* ---------- Rail group headings ---------- */
.rail-group{
  font:700 .64rem var(--font-mono); text-transform:uppercase; letter-spacing:.09em;
  color:var(--faint); padding:12px 11px 4px; border-top:1px solid var(--border); margin-top:6px;
}
.rail-list > .rail-group:first-child{ border-top:none; margin-top:0; padding-top:4px; }
.practice-browser.is-collapsed .rail-group{
  font-size:0; padding:8px 0 4px; height:1px; overflow:hidden;   /* keep the divider, drop the words */
}

/* ---------- Narrated lesson deck ---------- */
.learn-deck{ max-width:760px; }
.deck-head{ display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:10px; }
.deck-count{ font:700 .7rem var(--font-mono); text-transform:uppercase; letter-spacing:.06em; color:var(--faint); }
.deck-title{ font-size:1.35rem; margin:0 0 .4em; }
.deck-body{ font-size:1rem; line-height:1.65; margin:0; color:var(--ink); }
.deck-bullets{ margin:14px 0 0; padding:0; list-style:none; display:flex; flex-wrap:wrap; gap:8px; }
.deck-bullets li{
  background:var(--surface-2); border:1px solid var(--border); border-radius:999px;
  padding:.42em .95em; font:600 .8rem var(--font-body); color:var(--ink);
}
.deck-foot{ display:flex; align-items:center; gap:12px; flex-wrap:wrap; margin-top:20px; padding-top:14px; border-top:1px solid var(--border); }
.deck-dots{ display:flex; gap:6px; flex:1; justify-content:center; }

/* Mid-lesson Q&A — the deck holds while the student's question is answered. */
.deck-qa{ margin-top:14px; }
.deck-qa:empty{ display:none; }
.deck-qa{ border-top:1px solid var(--line); padding-top:14px; }
.qa-answer{ margin-top:10px; }
.qa-answer strong{ color:var(--ink); }

/* Code Lab — worked sample input/output, and the return-vs-print warning. */
.code-examples{ margin:14px 0 16px; padding:14px 16px; border:1px solid var(--line); border-radius:12px; background:var(--bg-2); }
.code-examples h4{ margin:0 0 10px; font-size:13px; letter-spacing:.06em; text-transform:uppercase; color:var(--ink-2); font-family:var(--mono); }
.code-example{ margin-bottom:12px; }
.code-example:last-of-type{ margin-bottom:0; }
.ce-n{ font-family:var(--mono); font-size:11px; color:var(--ink-3); letter-spacing:.06em; margin-bottom:4px; }
.ce-row{ display:flex; gap:10px; align-items:baseline; margin:3px 0; flex-wrap:wrap; }
.ce-k{ font-family:var(--mono); font-size:11px; color:var(--ink-2); min-width:52px; }
.ce-row code{ font-family:var(--mono); font-size:12.5px; background:var(--card); border:1px solid var(--line);
  border-radius:6px; padding:2px 7px; color:var(--ink); word-break:break-all; }
.ce-note{ font-size:12.5px; color:var(--ink-2); margin-top:4px; }
.ce-warn{ margin:12px 0 0; font-size:12.5px; color:var(--ink-2); border-top:1px dashed var(--line); padding-top:10px; }
.ce-warn code{ font-family:var(--mono); font-size:12px; }
.code-result-note{ margin-top:10px; padding:10px 12px; border-radius:10px; border:1px solid var(--line);
  background:var(--bg-2); font-size:13px; color:var(--ink-2); }
.code-result-note code{ font-family:var(--mono); font-size:12px; }
.hint-lang{ display:inline-block; font-family:var(--mono); font-size:10.5px; letter-spacing:.06em; text-transform:uppercase;
  color:var(--ink-3); border:1px solid var(--line); border-radius:6px; padding:1px 6px; margin-right:8px; }

/* ======================================================================
   ATS Resume Builder
   ====================================================================== */
.rb-layout{ display:grid; grid-template-columns:minmax(0,1.25fr) minmax(0,1fr); gap:18px; align-items:start; }
@media (max-width:1000px){ .rb-layout{ grid-template-columns:1fr; } }
.rb-grid{ display:grid; grid-template-columns:1fr 1fr; gap:12px 14px; }
@media (max-width:620px){ .rb-grid{ grid-template-columns:1fr; } }
.rb-field{ display:flex; flex-direction:column; gap:5px; min-width:0; }
.rb-field.rb-wide{ grid-column:1 / -1; }
.rb-field > span{ font-size:12.5px; font-weight:600; color:var(--ink-2); }
.rb-hint{ font-size:11.5px; color:var(--ink-3); font-style:normal; }
.rb-input{ width:100%; box-sizing:border-box; padding:9px 11px; border:1px solid var(--line); border-radius:9px;
  background:var(--card); color:var(--ink); font:inherit; font-size:13.5px; }
.rb-input:focus{ outline:none; border-color:var(--brand); }
textarea.rb-input{ resize:vertical; line-height:1.5; }
.rb-row{ border:1px solid var(--line); border-radius:12px; padding:12px 14px; margin-bottom:12px; background:var(--bg-2); }
.rb-row-head{ display:flex; justify-content:space-between; align-items:center; margin-bottom:10px;
  font-family:var(--mono); font-size:11px; color:var(--ink-3); }
.rb-side{ position:sticky; top:14px; display:flex; flex-direction:column; gap:14px; }
.rb-score{ float:right; font-family:var(--mono); font-size:13px; color:var(--ink-2); }
.rb-check-list{ list-style:none; margin:10px 0 0; padding:0; }
.rb-check-list li{ display:flex; gap:10px; align-items:flex-start; padding:7px 0; border-top:1px solid var(--line); }
.rb-check-list li:first-child{ border-top:0; }
.rb-check-list strong{ display:block; font-size:13px; font-weight:600; }
.rb-check-list em{ display:block; font-style:normal; font-size:12px; color:var(--ink-2); margin-top:3px; }
.rb-mark{ width:20px; height:20px; border-radius:50%; flex:0 0 20px; display:flex; align-items:center;
  justify-content:center; font-size:12px; font-weight:700; }
.rb-check-list li.ok .rb-mark{ background:var(--ok-bg,#e6f5ec); color:var(--ok,#1c7c46); }
.rb-check-list li.no .rb-mark{ background:var(--warn-bg,#fdf0e3); color:var(--warn,#a4610a); }
.rb-actions{ display:flex; gap:10px; flex-wrap:wrap; }
.rb-preview{ background:#fff; color:#111; padding:18px 20px; border-radius:10px; border:1px solid var(--line);
  max-height:560px; overflow:auto; font-family:Calibri,Arial,sans-serif; }
.rb-preview .rz-name{ font-size:19px; margin:0 0 2px; text-align:center; }
.rb-preview .rz-role, .rb-preview .rz-contact{ text-align:center; font-size:12px; color:#333; }
.rb-preview .rz-contact{ margin-bottom:12px; }
.rb-preview .rz-h{ font-size:12.5px; margin:14px 0 5px; padding-bottom:3px; border-bottom:1px solid #111; letter-spacing:.5px; }
.rb-preview .rz-sub{ font-weight:700; font-size:12.5px; margin-top:7px; }
.rb-preview .rz-meta{ font-size:11.5px; color:#444; }
.rb-preview .rz-li{ font-size:12px; margin:2px 0 2px 16px; }
.rb-preview .rz-li:before{ content:"• "; }
.rb-preview .rz-p{ font-size:12px; margin:0 0 4px; }

/* ======================================================================
   Job search
   ====================================================================== */
.js-form{ display:flex; flex-direction:column; gap:16px; margin-bottom:16px; }
.js-sliders{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
@media (max-width:700px){ .js-sliders{ grid-template-columns:1fr; } }
.js-slider{ display:flex; flex-direction:column; gap:6px; }
.js-slider > span{ display:flex; justify-content:space-between; font-size:12.5px; font-weight:600; color:var(--ink-2); }
.js-slider strong{ color:var(--brand); font-family:var(--mono); }
.js-slider input[type=range]{ width:100%; accent-color:var(--brand); }
.js-lbl{ display:flex; flex-direction:column; gap:5px; font-size:12.5px; font-weight:600; color:var(--ink-2); }
.js-chips{ display:flex; flex-wrap:wrap; gap:7px; margin:8px 0 10px; }
.js-chip{ border:1px solid var(--line); background:var(--card); color:var(--ink-2); border-radius:999px;
  padding:5px 12px; font:inherit; font-size:12.5px; cursor:pointer; }
.js-chip:hover{ border-color:var(--ink-3); color:var(--ink); }
.js-chip.is-on{ border-color:var(--brand); color:var(--brand); background:var(--brand-bg,transparent); }
.js-add-row{ display:flex; gap:8px; align-items:center; }
.js-add-row .rb-input{ flex:1; }
.js-chosen{ display:flex; flex-wrap:wrap; gap:7px; margin-top:10px; }
.js-tag{ display:inline-flex; align-items:center; gap:5px; border:1px solid var(--line); border-radius:7px;
  padding:3px 8px; font-size:12px; color:var(--ink-2); }
.js-tag.on{ border-color:var(--brand); color:var(--brand); }
.js-tag button{ border:0; background:none; color:inherit; cursor:pointer; font-size:14px; line-height:1; padding:0; }
.js-row{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
@media (max-width:700px){ .js-row{ grid-template-columns:1fr; } }
.js-portals{ margin-bottom:16px; }
.js-portal-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:10px; margin-top:12px; }
.js-portal{ display:flex; flex-direction:column; gap:4px; border:1px solid var(--line); border-radius:11px;
  padding:12px 14px; text-decoration:none; color:var(--ink); background:var(--bg-2); }
.js-portal:hover{ border-color:var(--brand); }
.js-portal span{ font-size:12px; color:var(--ink-2); }
.js-results-head{ display:flex; justify-content:space-between; align-items:baseline; gap:12px;
  margin:4px 2px 10px; font-size:13px; flex-wrap:wrap; }
.js-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:12px; }
.js-card{ border:1px solid var(--line); border-radius:12px; padding:14px 16px; background:var(--card); }
.js-card.is-saved{ border-color:var(--brand); }
.js-card-top{ display:flex; justify-content:space-between; gap:10px; align-items:flex-start; }
.js-title{ font-weight:650; font-size:14.5px; color:var(--ink); text-decoration:none; line-height:1.35; }
.js-title:hover{ color:var(--brand); text-decoration:underline; }
.js-save{ border:0; background:none; cursor:pointer; font-size:17px; color:var(--ink-3); line-height:1; padding:0; }
.js-card.is-saved .js-save{ color:var(--brand); }
.js-co{ font-size:12.5px; color:var(--ink-2); margin:4px 0 8px; }
.js-meta{ display:flex; gap:10px; align-items:center; font-size:11.5px; color:var(--ink-3); flex-wrap:wrap; }
.js-src{ font-family:var(--mono); border:1px solid var(--line); border-radius:5px; padding:1px 6px; }
.js-match{ margin-left:auto; color:var(--brand); font-weight:600; font-family:var(--mono); }
.js-tags{ display:flex; flex-wrap:wrap; gap:6px; margin-top:9px; }

/* ======================================================================
   Placement Ready Certificate
   ====================================================================== */
.cx-summary{ margin-bottom:16px; }
.cx-stats{ display:flex; flex-wrap:wrap; gap:22px; margin-top:12px; }
.cx-stats div{ min-width:104px; }
.cx-stats strong{ display:block; font-size:22px; font-family:var(--mono); }
.cx-stats span{ font-size:11px; text-transform:uppercase; letter-spacing:.6px; color:var(--ink-3); }
.cx-tiers{ display:grid; grid-template-columns:repeat(auto-fit,minmax(290px,1fr)); gap:14px; margin-bottom:16px; }
.cx-tier{ border:1px solid var(--line); border-radius:14px; padding:16px 18px; background:var(--card); }
.cx-tier.is-earned{ border-color:var(--brand); }
.cx-tier-head{ display:flex; justify-content:space-between; align-items:baseline; gap:10px; }
.cx-tier-head h3{ margin:0; }
.cx-status{ font-size:11px; text-transform:uppercase; letter-spacing:.6px; color:var(--ink-3); }
.cx-tier.is-earned .cx-status{ color:var(--brand); }
.cx-bronze .cx-tier-head h3{ color:#a2703f; }
.cx-silver .cx-tier-head h3{ color:#7b8794; }
.cx-gold .cx-tier-head h3{ color:#c9992b; }
.cx-reqs{ list-style:none; margin:12px 0 0; padding:0; }
.cx-reqs li{ display:flex; gap:9px; align-items:baseline; padding:6px 0; border-top:1px solid var(--line); font-size:12.5px; }
.cx-reqs li:first-child{ border-top:0; }
.cx-reqs li strong{ margin-left:auto; font-family:var(--mono); font-size:12px; }
.cx-reqs li.ok{ color:var(--ink); }
.cx-reqs li.no{ color:var(--ink-2); }
.cx-mark{ width:14px; }
.cx-actions{ display:flex; gap:9px; align-items:center; flex-wrap:wrap; margin-top:13px; }
.cx-id{ font-family:var(--mono); font-size:11.5px; border:1px solid var(--line); border-radius:6px; padding:2px 7px; }
.cx-reg{ font-size:11px; color:var(--ok,#1c7c46); }
.cx-unreg{ font-size:11px; color:var(--bad,#a4243b); font-weight:600; }
.cx-warn{ color:var(--bad,#a4243b); }
.cx-verify-card{ margin-bottom:16px; }
.cx-result{ margin:12px 0 8px; padding:10px 13px; border-radius:9px; font-size:13px; font-weight:600; border:1px solid var(--line); }
.cx-result.ok{ color:var(--ok,#1c7c46); }
.cx-result.warn{ color:var(--warn,#a4610a); }
.cx-result.no{ color:var(--bad,#a4243b); }
.cx-li{ display:grid; grid-template-columns:auto 1fr; gap:6px 16px; margin:10px 0 0; font-size:13px; }
.cx-li dt{ color:var(--ink-3); font-size:11.5px; text-transform:uppercase; letter-spacing:.5px; }
.cx-li dd{ margin:0; }
.cx-preview{ margin-top:14px; overflow-x:auto; background:#fff; border-radius:10px; padding:10px; }
.cx-preview .cert-sheet{ transform-origin:top left; width:900px; box-sizing:border-box; padding:34px 44px;
  border:3px solid #14213d; color:#14213d; font-family:Georgia,'Times New Roman',serif; text-align:center; }
.cx-preview .cert-rule{ height:4px; background:#c9992b; margin:0 auto 20px; width:120px; }
.cx-preview .cert-brand{ font-size:12px; letter-spacing:4px; text-transform:uppercase; }
.cx-preview .cert-kicker{ font-size:11px; letter-spacing:2.5px; text-transform:uppercase; margin-top:18px; color:#5a5f73; }
.cx-preview .cert-title{ font-size:29px; margin:6px 0 20px; }
.cx-preview .cert-name{ font-size:33px; margin:8px 0 14px; border-bottom:1px solid #c9992b; display:inline-block; padding:0 40px 6px; }
.cx-preview .cert-body{ font-size:14px; max-width:660px; margin:0 auto 20px; line-height:1.55; }
.cx-preview .cert-stats{ display:flex; justify-content:center; gap:30px; margin-bottom:22px; }
.cx-preview .cert-stats strong{ display:block; font-size:19px; font-family:Arial,sans-serif; }
.cx-preview .cert-stats span{ font-size:9px; text-transform:uppercase; letter-spacing:1px; color:#5a5f73; font-family:Arial,sans-serif; }
.cx-preview .cert-foot{ display:flex; justify-content:space-between; font-family:Arial,sans-serif; font-size:11px; margin-bottom:10px; }
.cx-preview .cert-lbl{ display:block; font-size:8.5px; text-transform:uppercase; letter-spacing:1px; color:#5a5f73; }
.cx-preview .cert-verify{ font-family:Arial,sans-serif; font-size:10px; color:#5a5f73; }
.cx-preview .cert-unreg{ color:#a4243b; font-weight:bold; }

/* ======================================================================
   Campus Mock Interview
   ====================================================================== */
.cm-roles{ display:grid; grid-template-columns:repeat(auto-fill,minmax(230px,1fr)); gap:10px; margin-top:12px; }
.cm-role{ display:flex; flex-direction:column; gap:4px; text-align:left; border:1px solid var(--line); border-radius:12px;
  padding:12px 14px; background:var(--card); color:var(--ink); cursor:pointer; font:inherit; }
.cm-role:hover{ border-color:var(--ink-3); }
.cm-role.is-on{ border-color:var(--brand); box-shadow:inset 0 0 0 1px var(--brand); }
.cm-role-ic{ font-family:var(--mono); font-size:16px; color:var(--brand); }
.cm-role strong{ font-size:13.5px; }
.cm-role span:last-child{ font-size:12px; color:var(--ink-2); }
.cm-diffs{ display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:10px; margin-top:6px; }
.cm-diff{ display:flex; flex-direction:column; gap:4px; text-align:left; border:1px solid var(--line); border-radius:12px;
  padding:12px 14px; background:var(--card); color:var(--ink); cursor:pointer; font:inherit; }
.cm-diff.is-on{ border-color:var(--brand); box-shadow:inset 0 0 0 1px var(--brand); }
.cm-diff span{ font-size:12px; color:var(--ink-2); }
.cm-diff em{ font-style:normal; font-family:var(--mono); font-size:11px; color:var(--ink-3); }
.cm-stage-list{ margin:10px 0 0 18px; padding:0; font-size:13px; color:var(--ink-2); }
.cm-stage-list li{ margin-bottom:4px; }
.cm-stage-list strong{ color:var(--ink); }
.btn-lg{ padding:12px 22px; font-size:15px; }
.cm-head{ display:flex; justify-content:space-between; align-items:flex-start; gap:14px; margin-bottom:14px; }
.cm-head h3{ margin:0; }
.cm-stages{ display:flex; flex-direction:column; gap:8px; margin-bottom:16px; }
.cm-stage{ display:flex; align-items:center; gap:14px; width:100%; text-align:left; border:1px solid var(--line);
  border-radius:12px; padding:12px 16px; background:var(--card); color:var(--ink); font:inherit; cursor:pointer; }
.cm-stage:disabled{ cursor:not-allowed; opacity:.55; }
.cm-stage.is-current{ box-shadow:inset 0 0 0 1px var(--brand); }
.cm-stage.is-pass{ border-color:var(--ok,#1c7c46); }
.cm-stage.is-fail{ border-color:var(--bad,#a4243b); }
.cm-n{ width:26px; height:26px; border-radius:50%; border:1px solid var(--line); display:flex; align-items:center;
  justify-content:center; font-family:var(--mono); font-size:12px; flex:0 0 26px; }
.cm-stage.is-pass .cm-n{ border-color:var(--ok,#1c7c46); color:var(--ok,#1c7c46); }
.cm-main{ display:flex; flex-direction:column; gap:2px; min-width:0; }
.cm-main strong{ font-size:14px; }
.cm-main span{ font-size:12px; color:var(--ink-2); }
.cm-score{ margin-left:auto; font-family:var(--mono); font-size:13px; color:var(--ink-2); white-space:nowrap; }
.cm-stage.is-pass .cm-score{ color:var(--ok,#1c7c46); }
.cm-stage.is-fail .cm-score{ color:var(--bad,#a4243b); }
.cm-q{ border-top:1px solid var(--line); padding:16px 0; }
.cm-q-top{ display:flex; gap:10px; align-items:baseline; margin-bottom:6px; }
.cm-q-n{ font-family:var(--mono); font-size:11px; color:var(--brand); }
.cm-q-src{ font-family:var(--mono); font-size:10.5px; color:var(--ink-3); border:1px solid var(--line);
  border-radius:5px; padding:1px 6px; }
.cm-q-text{ font-size:14px; line-height:1.5; margin-bottom:10px; }
.cm-opts{ display:flex; flex-direction:column; gap:6px; }
.cm-opt{ display:flex; gap:9px; align-items:flex-start; border:1px solid var(--line); border-radius:9px;
  padding:8px 11px; font-size:13.5px; cursor:pointer; }
.cm-opt.is-on{ border-color:var(--brand); }
.cm-verdict{ margin-top:10px; font-size:13px; padding:9px 12px; border-radius:9px; border:1px solid var(--line); }
.cm-verdict.ok{ color:var(--ok,#1c7c46); }
.cm-verdict.no{ color:var(--bad,#a4243b); }
.cm-verdict p{ margin:5px 0 0; color:var(--ink-2); }
.cm-code-item{ display:flex; align-items:center; gap:14px; flex-wrap:wrap; border-top:1px solid var(--line); padding:13px 0; }
.cm-code-item strong{ display:block; font-size:14px; margin-top:3px; }
.cm-code-state{ font-size:12px; color:var(--ink-3); margin-left:auto; font-family:var(--mono); }
.cm-code-state.ok{ color:var(--ok,#1c7c46); }
.cm-ans{ width:100%; box-sizing:border-box; }
.cm-wc{ font-family:var(--mono); font-size:11px; color:var(--ink-3); margin-top:4px; }
.cm-wc.ok{ color:var(--ok,#1c7c46); }
.cm-grade{ margin-top:12px; border:1px solid var(--line); border-radius:11px; padding:12px 14px; background:var(--bg-2); }
.cm-grade-head{ display:flex; align-items:baseline; gap:12px; }
.cm-grade-head strong{ font-size:19px; font-family:var(--mono); }
.cm-grader{ font-size:11.5px; color:var(--ink-3); }
.cm-comment{ font-size:13px; margin:8px 0 0; }
.cm-parts{ list-style:none; margin:10px 0 0; padding:0; }
.cm-parts li{ display:flex; gap:10px; align-items:baseline; font-size:12.5px; padding:4px 0; border-top:1px solid var(--line); }
.cm-parts li em{ font-style:normal; color:var(--ink-3); font-size:11.5px; }
.cm-parts li strong{ margin-left:auto; font-family:var(--mono); }
.cm-missed{ font-size:12.5px; color:var(--ink-2); margin:9px 0 0; }
.cm-result{ margin-top:16px; }
.cm-result.is-pass{ border-color:var(--ok,#1c7c46); }
.cm-result.is-fail{ border-color:var(--bad,#a4243b); }
.cm-result h3{ margin-top:0; }

/* ======================================================================
   1:1 session
   ====================================================================== */
.bk-layout{ display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.4fr); gap:18px; align-items:start; }
@media (max-width:900px){ .bk-layout{ grid-template-columns:1fr; } }
.bk-about h4{ margin:16px 0 6px; font-size:13px; }
.bk-list{ margin:0 0 0 18px; padding:0; font-size:13px; color:var(--ink-2); }
.bk-list li{ margin-bottom:5px; }
.bk-widget #bkMount{ min-height:640px; }
.bk-frame{ width:100%; min-height:640px; border:0; border-radius:10px; }

/* Figures inside the Dashboard intro carousel — smaller than in a lesson
   deck, since the slide already carries an avatar, a heading and body text. */
.slide .figure-block{ margin:10px auto 4px; max-width:640px; }
.slide .fig-cell svg{ max-height:74px; }
.slide .fig-cell figcaption{ font-size:10.5px; }
.slides-embed.is-min .figure-block{ display:none; }

/* ======================================================================
   Ported from r17: lesson deck maximise control
   ====================================================================== */
.deck-head-right{ display:flex; align-items:center; gap:8px; }
.deck-max-btn{
  border:1px solid var(--border); background:var(--surface); color:var(--faint);
  border-radius:8px; width:30px; height:30px; line-height:1; font-size:15px;
  cursor:pointer; display:inline-flex; align-items:center; justify-content:center;
  flex:0 0 auto; transition:background .15s, color .15s, border-color .15s;
}
.deck-max-btn:hover{ background:var(--surface-2); color:var(--ink); border-color:var(--primary); }

body.deck-maximised{ overflow:hidden; }
.learn-deck.is-max{
  position:fixed; inset:0; z-index:900; margin:0; border-radius:0;
  width:100vw; height:100dvh; max-width:none;
  overflow-y:auto; display:flex; flex-direction:column; justify-content:center;
  padding:24px clamp(18px, 6vw, 80px) 20px;
  box-shadow:none;
}
/* Header and controls are pinned to the edges so the slide's own content can
   take the whole middle and sit optically centred, instead of clinging to the
   top of a large screen. */
.learn-deck.is-max .deck-head{
  position:absolute; top:22px; left:clamp(18px, 6vw, 80px); right:clamp(18px, 6vw, 80px);
  margin:0;
}
.learn-deck.is-max .deck-foot{
  position:absolute; bottom:20px; left:clamp(18px, 6vw, 80px); right:clamp(18px, 6vw, 80px);
  margin:0; padding-top:18px;
}
.learn-deck.is-max .deck-title,
.learn-deck.is-max .deck-body,
.learn-deck.is-max .deck-bullets,
.learn-deck.is-max .figure-block{ width:100%; max-width:900px; margin-inline:auto; }
.learn-deck.is-max .deck-title{
  font-size:clamp(24px, 3.2vw, 40px); line-height:1.2; margin:0 auto 18px;
}
.learn-deck.is-max .deck-body{ font-size:clamp(17px, 1.7vw, 23px); line-height:1.65; }
.learn-deck.is-max .deck-bullets{ font-size:clamp(14px, 1.25vw, 18px); margin-top:18px; }
.learn-deck.is-max .figure-block{ margin-top:26px; }
.learn-deck.is-max .fig-cell-svg{ max-height:34vh; }
.learn-deck.is-max .deck-qa{ width:100%; max-width:900px; margin-inline:auto; position:relative; }

/* ======================================================================
   Ported from r17: answer options drawn as figures (visual / non-verbal)
   ====================================================================== */
.quiz-opts.has-figs, .qotd-opts.has-figs{
  display:grid; grid-template-columns:repeat(4, minmax(0, 1fr)); gap:10px;
}
@media (max-width: 620px){
  .quiz-opts.has-figs, .qotd-opts.has-figs{ grid-template-columns:repeat(2, minmax(0, 1fr)); }
}
.quiz-opts.has-figs .quiz-opt,
.qotd-opts.has-figs .qotd-opt{
  display:flex; flex-direction:column; align-items:center; gap:8px;
  text-align:center; padding:12px 8px 10px; width:auto; min-width:0;
}
.opt-fig{
  display:block; width:100%; max-width:118px; aspect-ratio:1 / 1;
  color:var(--ink); pointer-events:none;
}
.opt-fig .fig-cell-svg{ width:100%; height:100%; display:block; }
.opt-fig-label{
  font-size:12.5px; color:var(--faint); line-height:1.35;
  word-break:break-word; pointer-events:none;
}
.quiz-opts.has-figs .quiz-opt.correct .opt-fig-label,
.quiz-opts.has-figs .quiz-opt.wrong .opt-fig-label{ color:inherit; }
.qotd-opts.has-figs .qotd-opt.correct .opt-fig-label,
.qotd-opts.has-figs .qotd-opt.wrong .opt-fig-label{ color:inherit; }

/* ======================================================================
   Ported from r17: DSA worked examples, code-hint approach line
   ====================================================================== */
.dsa-ex{ margin:8px 0 6px; display:grid; gap:5px; }
.dsa-ex-row{
  display:flex; align-items:baseline; gap:7px; flex-wrap:wrap;
  font-size:12.5px; line-height:1.5;
}
.dsa-ex-lab{
  font-size:10.5px; font-weight:700; letter-spacing:.05em; text-transform:uppercase;
  color:var(--muted); flex:0 0 auto;
}
.dsa-ex-row code{
  background:var(--surface); border:1px solid var(--border); border-radius:5px;
  padding:1px 6px; font-size:12px; word-break:break-word; max-width:100%;
}
.dsa-ex-note{ color:var(--muted); font-style:italic; font-size:12px; flex:1 1 100%; }

.code-hint .hint-approach{ margin:0 0 8px; }