:root {
  --academy-ink: #11194f;
  --academy-indigo: #4338ca;
  --academy-violet: #6d5ce7;
  --academy-gold: #f59e0b;
  --academy-gold-soft: #fff3c4;
  --academy-cyan: #63e6dc;
  --academy-paper: #f8f8ff;
  --academy-card: #ffffff;
  --academy-muted: #59627c;
  --academy-border: #dfe2ff;
  --academy-success: #087f5b;
  --academy-danger: #b42318;
  --academy-shadow: 0 22px 70px rgba(23, 31, 92, .12);
}

html { scroll-behavior: smooth; }

.academy-body {
  margin: 0;
  color: var(--academy-ink);
  background:
    radial-gradient(circle at 8% 3%, rgba(99, 230, 220, .18), transparent 28rem),
    radial-gradient(circle at 96% 12%, rgba(245, 158, 11, .15), transparent 25rem),
    var(--academy-paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.academy-body *, .academy-body *::before, .academy-body *::after { box-sizing: border-box; }
.academy-body a { color: inherit; }
.academy-body button, .academy-body input, .academy-body select, .academy-body textarea { font: inherit; }

.academy-skip {
  position: fixed;
  z-index: 1000;
  top: .75rem;
  left: .75rem;
  padding: .7rem 1rem;
  color: #fff;
  background: var(--academy-ink);
  border-radius: .75rem;
  transform: translateY(-160%);
}
.academy-skip:focus { transform: translateY(0); }

.academy-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid rgba(223, 226, 255, .8);
  background: rgba(248, 248, 255, .9);
  backdrop-filter: blur(18px);
}
.academy-header-inner {
  width: min(1180px, calc(100% - 2rem));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.academy-brand {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  font-weight: 900;
  text-decoration: none;
  letter-spacing: -.02em;
  white-space: nowrap;
}
.academy-brand img { width: 46px; height: 46px; }
.academy-brand small { display: block; color: var(--academy-muted); font-size: .7rem; font-weight: 750; letter-spacing: .09em; text-transform: uppercase; }
.academy-nav { margin-left: auto; display: flex; align-items: center; gap: .3rem; }
.academy-nav a {
  min-height: 44px;
  padding: .65rem .85rem;
  display: inline-flex;
  align-items: center;
  border-radius: .8rem;
  color: #343b63;
  font-size: .9rem;
  font-weight: 750;
  text-decoration: none;
}
.academy-nav a:hover, .academy-nav a[aria-current="page"] { color: var(--academy-indigo); background: #ececff; }
.academy-back { border: 1px solid var(--academy-border); background: #fff; }

.academy-shell { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; padding: 2.2rem 0 5rem; }
.academy-breadcrumb { margin: 0 0 1.5rem; color: var(--academy-muted); font-size: .9rem; }
.academy-breadcrumb a { color: var(--academy-indigo); font-weight: 750; text-decoration: none; }

.academy-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 5vw, 4.7rem);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 2rem;
  color: #fff;
  background:
    linear-gradient(120deg, rgba(99, 230, 220, .16), transparent 38%),
    linear-gradient(145deg, #11194f, #4338ca 64%, #6d5ce7);
  box-shadow: var(--academy-shadow);
}
.academy-hero::after {
  content: "";
  position: absolute;
  width: 18rem;
  height: 18rem;
  right: -5rem;
  bottom: -7rem;
  border: 3.7rem solid rgba(255,255,255,.07);
  border-radius: 50%;
}
.academy-hero > * { position: relative; z-index: 1; }
.academy-kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: 1rem;
  color: #d8d9ff;
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.academy-kicker::before { content: ""; width: 1.7rem; height: 3px; border-radius: 2px; background: var(--academy-gold); }
.academy-hero h1 { max-width: 760px; margin: 0; font-size: clamp(2.25rem, 6vw, 5rem); line-height: .98; letter-spacing: -.055em; }
.academy-hero h1 span { color: var(--academy-cyan); }
.academy-hero p { max-width: 700px; margin: 1.25rem 0 0; color: #e8eaff; font-size: clamp(1rem, 2vw, 1.2rem); line-height: 1.65; }
.academy-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.6rem; }
.academy-button, .academy-button-secondary, .academy-action {
  min-height: 46px;
  padding: .75rem 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  border: 0;
  border-radius: .9rem;
  font-weight: 850;
  text-decoration: none;
  cursor: pointer;
}
.academy-button { color: var(--academy-ink); background: var(--academy-cyan); }
.academy-button:hover { background: #8af0e8; }
.academy-button-secondary { color: #fff; border: 1px solid rgba(255,255,255,.35); background: rgba(255,255,255,.09); }
.academy-action { color: #fff; background: var(--academy-indigo); }
.academy-action:hover { background: #352bb0; }
.academy-action.is-muted { color: var(--academy-ink); border: 1px solid var(--academy-border); background: #fff; }
.academy-action.is-danger { color: var(--academy-danger); border: 1px solid #ffd4d0; background: #fff5f4; }
.academy-action:disabled { cursor: not-allowed; opacity: .48; }

.academy-trust-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }
.academy-trust-row span { padding: .45rem .7rem; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; color: #f4f4ff; background: rgba(255,255,255,.07); font-size: .82rem; font-weight: 700; }

.academy-section { margin-top: 3.2rem; }
.academy-section-head { max-width: 760px; margin-bottom: 1.25rem; }
.academy-section-head small { color: var(--academy-indigo); font-size: .76rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.academy-section-head h2 { margin: .45rem 0 .55rem; font-size: clamp(1.65rem, 4vw, 2.65rem); line-height: 1.08; letter-spacing: -.04em; }
.academy-section-head p { margin: 0; color: var(--academy-muted); line-height: 1.65; }

.academy-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: .9rem; margin: -1.35rem auto 0; padding: 0 1.1rem; position: relative; z-index: 2; }
.academy-stat { min-height: 126px; padding: 1.15rem; border: 1px solid var(--academy-border); border-radius: 1.25rem; background: rgba(255,255,255,.96); box-shadow: 0 14px 36px rgba(23,31,92,.08); }
.academy-stat span { display: block; color: var(--academy-muted); font-size: .78rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.academy-stat strong { display: block; margin-top: .45rem; color: var(--academy-indigo); font-size: 2rem; line-height: 1; }
.academy-stat small { display: block; margin-top: .45rem; color: var(--academy-muted); }

.academy-tool-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.academy-tool-card, .academy-pillar, .academy-panel, .academy-list-item {
  border: 1px solid var(--academy-border);
  border-radius: 1.35rem;
  background: var(--academy-card);
  box-shadow: 0 15px 44px rgba(23,31,92,.07);
}
.academy-tool-card { padding: 1.35rem; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1rem; text-decoration: none; transition: transform .18s ease, border-color .18s ease; }
.academy-tool-card:hover { transform: translateY(-3px); border-color: #aca9ff; }
.academy-tool-icon { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 1rem; color: var(--academy-indigo); background: #eeefff; font-size: 1.45rem; font-weight: 900; }
.academy-tool-card h3 { margin: 0 0 .3rem; font-size: 1.15rem; }
.academy-tool-card p { margin: 0; color: var(--academy-muted); line-height: 1.45; }
.academy-tool-card > strong { color: var(--academy-indigo); font-size: 1.35rem; }

.academy-pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: .9rem; }
.academy-pillar { padding: 1.25rem; }
.academy-pillar .academy-pillar-state { display: inline-block; padding: .35rem .55rem; border-radius: 999px; color: var(--academy-success); background: #e5f8f0; font-size: .72rem; font-weight: 900; text-transform: uppercase; }
.academy-pillar .academy-pillar-state.is-next { color: #8a4f00; background: var(--academy-gold-soft); }
.academy-pillar h3 { margin: .9rem 0 .45rem; }
.academy-pillar p { margin: 0; color: var(--academy-muted); line-height: 1.55; }

.academy-next { padding: 1.3rem; display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: center; border: 1px solid #b7b5ff; border-radius: 1.35rem; background: linear-gradient(115deg, #f0efff, #fff9e7); }
.academy-next h3 { margin: 0 0 .35rem; }
.academy-next p { margin: 0; color: var(--academy-muted); }

.academy-page-hero { padding: 1.8rem; border: 1px solid var(--academy-border); border-radius: 1.5rem; background: linear-gradient(135deg, #fff, #f0efff); }
.academy-page-hero h1 { margin: .3rem 0 .65rem; font-size: clamp(2rem, 5vw, 3.4rem); letter-spacing: -.05em; }
.academy-page-hero p { max-width: 720px; margin: 0; color: var(--academy-muted); line-height: 1.65; }

.academy-workspace { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); gap: 1rem; margin-top: 1.25rem; align-items: start; }
.academy-panel { padding: clamp(1.1rem, 3vw, 1.7rem); }
.academy-panel h2, .academy-panel h3 { margin-top: 0; }
.academy-panel-note { color: var(--academy-muted); line-height: 1.55; }
.academy-storage-note { padding: 1rem; border-left: 4px solid var(--academy-cyan); border-radius: 0 .85rem .85rem 0; color: #424b6b; background: #ecfffd; }

.academy-field-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .9rem; }
.academy-field { display: grid; gap: .4rem; }
.academy-field.is-wide { grid-column: 1 / -1; }
.academy-field label, .academy-field > span { color: #343b63; font-size: .86rem; font-weight: 850; }
.academy-field input, .academy-field select, .academy-field textarea {
  width: 100%;
  min-height: 46px;
  padding: .72rem .8rem;
  border: 1px solid #cfd3f3;
  border-radius: .8rem;
  color: var(--academy-ink);
  background: #fff;
}
.academy-field textarea { min-height: 112px; resize: vertical; }
.academy-field input:focus, .academy-field select:focus, .academy-field textarea:focus { outline: 3px solid rgba(99,230,220,.35); border-color: var(--academy-indigo); }
.academy-form-actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1rem; }
.academy-status { min-height: 1.5rem; margin: .85rem 0 0; color: var(--academy-success); font-weight: 750; }

.academy-timer { text-align: center; }
.academy-mode-tabs, .academy-filter-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.academy-mode-tabs { justify-content: center; }
.academy-mode-tabs button, .academy-filter-row button {
  min-height: 44px;
  padding: .55rem .85rem;
  border: 1px solid var(--academy-border);
  border-radius: 999px;
  color: var(--academy-ink);
  background: #fff;
  font-weight: 800;
  cursor: pointer;
}
.academy-mode-tabs button[aria-pressed="true"], .academy-filter-row button[aria-pressed="true"] { color: #fff; border-color: var(--academy-indigo); background: var(--academy-indigo); }
.academy-clock { margin: 1.5rem 0 .8rem; font-size: clamp(4rem, 15vw, 8rem); font-weight: 950; line-height: .9; letter-spacing: -.08em; font-variant-numeric: tabular-nums; }
.academy-timer-label { color: var(--academy-muted); font-weight: 750; }
.academy-timer-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: .65rem; margin-top: 1.25rem; }
.academy-progress-track { height: 10px; margin-top: 1.4rem; overflow: hidden; border-radius: 999px; background: #e8e9f8; }
.academy-progress-track span { display: block; width: 100%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--academy-indigo), var(--academy-cyan)); transition: width .4s linear; }

.academy-list { display: grid; gap: .7rem; margin-top: 1rem; }
.academy-list-item { padding: 1rem; box-shadow: none; }
.academy-list-item.is-complete { opacity: .62; }
.academy-list-item.is-complete h3 { text-decoration: line-through; }
.academy-list-item-head { display: flex; justify-content: space-between; gap: .75rem; align-items: flex-start; }
.academy-list-item h3 { margin: 0; font-size: 1rem; }
.academy-list-item p { margin: .45rem 0 0; color: var(--academy-muted); line-height: 1.45; }
.academy-badge { display: inline-flex; padding: .3rem .5rem; border-radius: 999px; color: #473000; background: var(--academy-gold-soft); font-size: .72rem; font-weight: 850; white-space: nowrap; }
.academy-badge.is-urgent { color: #8e1b13; background: #ffe6e3; }
.academy-item-actions { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .8rem; }
.academy-item-actions button { min-height: 40px; padding: .45rem .65rem; border: 1px solid var(--academy-border); border-radius: .65rem; color: var(--academy-ink); background: #fff; font-weight: 750; cursor: pointer; }
.academy-item-actions button:last-child { color: var(--academy-danger); }
.academy-empty { padding: 1.2rem; border: 1px dashed #bfc3e8; border-radius: 1rem; color: var(--academy-muted); text-align: center; background: #fbfbff; }

.academy-flashcard {
  min-height: 280px;
  padding: 2rem;
  display: grid;
  place-items: center;
  border: 2px solid #b8b5ff;
  border-radius: 1.5rem;
  text-align: center;
  background: linear-gradient(145deg, #fff, #f1f0ff);
  cursor: pointer;
}
.academy-flashcard small { color: var(--academy-indigo); font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.academy-flashcard strong { display: block; max-width: 620px; margin-top: .8rem; font-size: clamp(1.4rem, 4vw, 2.25rem); line-height: 1.25; }
.academy-review-actions { display: flex; justify-content: center; gap: .7rem; margin-top: 1rem; }
.academy-review-actions[hidden] { display: none; }

.academy-method-guide { display: grid; gap: .7rem; margin: 1rem 0; padding: 1rem; border-radius: 1rem; background: #f1f0ff; }
.academy-method-guide strong { color: var(--academy-indigo); }
.academy-method-guide ol { margin: 0; padding-left: 1.2rem; color: var(--academy-muted); line-height: 1.65; }
.academy-note-content { white-space: pre-wrap; overflow-wrap: anywhere; }

/* ProvaCerta */
.pc-body [hidden] { display: none !important; }
.pc-hero {
  background:
    radial-gradient(circle at 82% 18%, rgba(253, 230, 138, .3), transparent 18rem),
    linear-gradient(145deg, #11194f, #4338ca 58%, #7c3aed);
}
.pc-hero::after { border-color: rgba(253, 230, 138, .13); }
.pc-stats .academy-stat:nth-child(1) strong,
.pc-stats .academy-stat:nth-child(2) strong { color: #6d28d9; }
.pc-setup-grid { grid-template-columns: minmax(0, 1.25fr) minmax(290px, .75fr); }
.pc-mode-note {
  margin-top: 1rem;
  padding: .85rem 1rem;
  display: flex;
  align-items: center;
  gap: .8rem;
  border-radius: .9rem;
  color: #353b63;
  background: #f2f1ff;
}
.pc-mode-note strong {
  min-width: 2.6rem;
  min-height: 2.6rem;
  display: grid;
  place-items: center;
  border-radius: .75rem;
  color: #fff;
  background: var(--academy-indigo);
  font-size: 1.2rem;
}
.pc-mode-note span { line-height: 1.4; }
.pc-how-card > article { display: grid; grid-template-columns: auto 1fr; gap: .8rem; align-items: start; padding: 1rem 0; border-top: 1px solid var(--academy-border); }
.pc-how-card > article:first-of-type { border-top: 0; }
.pc-how-card h3 { margin: 0 0 .25rem; font-size: 1rem; }
.pc-how-card p { margin: 0; color: var(--academy-muted); line-height: 1.5; }
.pc-mode-icon { width: 40px; height: 40px; display: grid; place-items: center; border-radius: .8rem; color: #075f48; background: #dff8ed; font-size: 1.25rem; font-weight: 900; }
.pc-mode-icon.is-timer { color: #794800; background: var(--academy-gold-soft); }

.pc-session { scroll-margin-top: 7rem; }
.pc-session-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: .75rem; }
.pc-session-toolbar > div:first-child { display: flex; align-items: center; gap: .65rem; flex-wrap: wrap; }
.pc-session-toolbar > div:first-child > strong { font-size: 1rem; }
.pc-timer { min-width: 105px; padding: .55rem .75rem; display: grid; justify-items: end; border: 1px solid #d8d5ff; border-radius: .8rem; background: #fff; }
.pc-timer span { color: var(--academy-muted); font-size: .7rem; font-weight: 850; text-transform: uppercase; }
.pc-timer strong { color: var(--academy-indigo); font-size: 1.25rem; font-variant-numeric: tabular-nums; }
.pc-progress { margin: 0 0 1rem; }
.pc-progress span { width: 0; }
.pc-question-card { max-width: 900px; margin: 0 auto; padding: clamp(1.2rem, 4vw, 2.4rem); }
.pc-question-meta { margin: 0 0 .7rem; color: var(--academy-indigo); font-size: .78rem; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; }
.pc-question-card h2 { max-width: 780px; margin: 0 0 1.3rem; font-size: clamp(1.35rem, 4vw, 2.1rem); line-height: 1.3; letter-spacing: -.025em; }
.pc-question-card h2:focus { outline: none; }
.pc-answers { display: grid; gap: .7rem; }
.pc-answer {
  width: 100%;
  min-height: 58px;
  padding: .75rem .9rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .8rem;
  align-items: center;
  border: 1px solid #cfd3f3;
  border-radius: 1rem;
  color: var(--academy-ink);
  text-align: left;
  background: #fff;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.pc-answer:hover:not(:disabled) { border-color: #8b84ef; transform: translateY(-1px); }
.pc-answer:focus-visible { outline: 3px solid rgba(99,230,220,.45); border-color: var(--academy-indigo); }
.pc-answer:disabled { cursor: default; opacity: 1; }
.pc-answer-key { width: 34px; height: 34px; display: grid; place-items: center; border-radius: .65rem; color: var(--academy-indigo); background: #efefff; font-weight: 900; }
.pc-answer.is-selected { border-color: var(--academy-indigo); background: #f1f0ff; }
.pc-answer.is-selected .pc-answer-key { color: #fff; background: var(--academy-indigo); }
.pc-answer.is-correct { border-color: #36a37d; background: #e9f9f2; }
.pc-answer.is-correct .pc-answer-key { color: #fff; background: var(--academy-success); }
.pc-answer.is-wrong { border-color: #e88982; background: #fff0ee; }
.pc-answer.is-wrong .pc-answer-key { color: #fff; background: var(--academy-danger); }
.pc-feedback { margin-top: 1rem; padding: 1rem; border-left: 4px solid var(--academy-cyan); border-radius: 0 .9rem .9rem 0; background: #ecfffd; }
.pc-feedback h3 { margin: 0 0 .35rem; color: var(--academy-indigo); }
.pc-feedback p { margin: 0; color: #424b6b; line-height: 1.6; }
.pc-question-footer { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: 1rem; }
.pc-question-footer .academy-status { margin: 0; }
.pc-shortcuts { color: var(--academy-muted); font-size: .78rem; text-align: center; }

.pc-result-grid { display: grid; grid-template-columns: minmax(260px, .8fr) minmax(300px, 1.2fr); gap: 1rem; }
.pc-result-main { min-height: 240px; padding: 1.5rem; display: grid; place-items: center; align-content: center; border-radius: 1.35rem; color: #fff; text-align: center; background: linear-gradient(145deg, var(--academy-ink), var(--academy-indigo)); box-shadow: var(--academy-shadow); }
.pc-result-main > span { color: var(--academy-cyan); font-size: clamp(4rem, 11vw, 7rem); font-weight: 950; line-height: .9; letter-spacing: -.07em; }
.pc-result-main > strong { margin-top: .75rem; font-size: 1.15rem; }
.pc-result-main > small { margin-top: .45rem; color: #e1e3ff; }
.pc-breakdown { display: grid; gap: .55rem; }
.pc-breakdown-row { padding: .75rem; display: flex; justify-content: space-between; gap: 1rem; border-radius: .75rem; background: #f3f2ff; }
.pc-breakdown-row span { color: var(--academy-indigo); font-weight: 900; }

.pc-subject-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; }
.pc-subject-card { min-height: 108px; padding: 1rem; display: grid; align-content: center; gap: .35rem; border: 1px solid var(--academy-border); border-radius: 1rem; color: var(--academy-ink); text-align: left; background: var(--academy-card); cursor: pointer; box-shadow: 0 10px 28px rgba(23,31,92,.06); }
.pc-subject-card:hover { border-color: #9d98f6; }
.pc-subject-card strong { font-size: 1.08rem; }
.pc-subject-card span { color: var(--academy-muted); }
.pc-history-item { border-left: 4px solid #b8b5ff; }

.academy-footer { padding: 2rem 1rem; border-top: 1px solid var(--academy-border); color: var(--academy-muted); background: #fff; }
.academy-footer-inner { width: min(1180px, 100%); margin: 0 auto; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.academy-footer a { color: var(--academy-indigo); font-weight: 750; text-decoration: none; }
.academy-footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }

[data-nb-theme="dark"] .academy-body {
  --academy-ink: #f3f4ff;
  --academy-paper: #0c1029;
  --academy-card: #151a3d;
  --academy-muted: #bcc1dc;
  --academy-border: #30375f;
  background: #0c1029;
}
[data-nb-theme="dark"] .academy-header { background: rgba(12,16,41,.92); }
[data-nb-theme="dark"] .academy-nav a, [data-nb-theme="dark"] .academy-panel-note { color: var(--academy-muted); }
[data-nb-theme="dark"] .academy-back, [data-nb-theme="dark"] .academy-action.is-muted, [data-nb-theme="dark"] .academy-field input, [data-nb-theme="dark"] .academy-field select, [data-nb-theme="dark"] .academy-field textarea, [data-nb-theme="dark"] .academy-mode-tabs button, [data-nb-theme="dark"] .academy-filter-row button, [data-nb-theme="dark"] .academy-item-actions button { color: var(--academy-ink); background: var(--academy-card); }
[data-nb-theme="dark"] .academy-stat, [data-nb-theme="dark"] .academy-page-hero { background: #151a3d; }
[data-nb-theme="dark"] .academy-next, [data-nb-theme="dark"] .academy-flashcard, [data-nb-theme="dark"] .academy-method-guide { background: #1a2049; }
[data-nb-theme="dark"] .academy-storage-note { color: #d7fffb; background: #113938; }
[data-nb-theme="dark"] .academy-footer { background: #101534; }
[data-nb-theme="dark"] .pc-mode-note, [data-nb-theme="dark"] .pc-breakdown-row { color: var(--academy-ink); background: #1f2550; }
[data-nb-theme="dark"] .pc-timer, [data-nb-theme="dark"] .pc-answer, [data-nb-theme="dark"] .pc-subject-card { color: var(--academy-ink); background: var(--academy-card); }
[data-nb-theme="dark"] .pc-answer.is-selected { background: #282968; }
[data-nb-theme="dark"] .pc-answer.is-correct { background: #123c32; }
[data-nb-theme="dark"] .pc-answer.is-wrong { background: #49211f; }
[data-nb-theme="dark"] .pc-feedback { background: #113938; }
[data-nb-theme="dark"] .pc-feedback p { color: #d7fffb; }

@media (max-width: 900px) {
  .academy-header-inner { align-items: flex-start; padding: .75rem 0; flex-wrap: wrap; }
  .academy-nav { width: 100%; margin: 0; padding-bottom: .15rem; overflow-x: auto; scrollbar-width: thin; }
  .academy-nav a { flex: 0 0 auto; }
  .academy-stats { grid-template-columns: repeat(2, 1fr); }
  .academy-pillars { grid-template-columns: repeat(2, 1fr); }
  .academy-workspace { grid-template-columns: 1fr; }
  .pc-setup-grid, .pc-result-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .academy-header-inner, .academy-shell { width: min(100% - 1.2rem, 1180px); }
  .academy-brand span { font-size: .93rem; }
  .academy-brand img { width: 40px; height: 40px; }
  .academy-hero { padding: 2rem 1.25rem; border-radius: 1.35rem; }
  .academy-stats { margin-top: .8rem; padding: 0; gap: .55rem; }
  .academy-stat { min-height: 108px; padding: .9rem; }
  .academy-stat strong { font-size: 1.55rem; }
  .academy-tool-grid, .academy-pillars, .academy-field-grid { grid-template-columns: 1fr; }
  .academy-tool-card { grid-template-columns: auto 1fr; }
  .academy-tool-card > strong { display: none; }
  .academy-next { grid-template-columns: 1fr; }
  .academy-clock { font-size: clamp(4.2rem, 23vw, 6.8rem); }
  .academy-page-hero, .academy-panel { padding: 1rem; border-radius: 1.1rem; }
  .academy-footer-inner { align-items: flex-start; flex-direction: column; }
  .pc-subject-grid { grid-template-columns: repeat(2, 1fr); }
  .pc-session-toolbar { align-items: stretch; flex-direction: column; }
  .pc-session-toolbar > div:first-child { justify-content: space-between; }
  .pc-timer { justify-items: start; }
  .pc-question-footer { align-items: stretch; flex-direction: column; }
  .pc-question-footer .academy-action { width: 100%; }
  .pc-shortcuts { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .academy-tool-card, .academy-progress-track span, .pc-answer { transition: none; }
}