/* Trading Academy — calm, premium learning app. Light default, dark via media query. */

:root {
  --bg: #faf8f4;
  --surface: #ffffff;
  --surface-2: #f2efe8;
  --text: #23292e;
  --text-soft: #5b636b;
  --line: #e5e0d6;
  --accent: #0e5c4a;
  --accent-soft: #e3efe9;
  --accent-ink: #0a4638;
  --gold: #b8860b;
  --danger: #b3403a;
  --danger-soft: #f7e6e4;
  --ok: #1e7a4f;
  --ok-soft: #e2f2e8;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(30, 30, 25, .06), 0 8px 24px rgba(30, 30, 25, .05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181a;
    --surface: #1d2124;
    --surface-2: #24292d;
    --text: #e8e6e1;
    --text-soft: #a2a8ad;
    --line: #32383d;
    --accent: #4fae8f;
    --accent-soft: #1e3229;
    --accent-ink: #7ccbb1;
    --gold: #d4a437;
    --danger: #d98079;
    --danger-soft: #3a2523;
    --ok: #58b482;
    --ok-soft: #1e3226;
    --shadow: 0 1px 3px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Devanagari", sans-serif;
  font-size: 16.5px;
  line-height: 1.65;
}

/* ---------- top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: .01em;
}
.topbar-link { color: var(--text-soft); display: flex; padding: 6px; border-radius: 8px; }
.topbar-link:hover { color: var(--text); background: var(--surface-2); }

main { max-width: 780px; margin: 0 auto; padding: 20px 16px 96px; }

.loading { text-align: center; color: var(--text-soft); padding: 60px 0; }

a { color: var(--accent); }

h1, h2, h3, h4 { font-family: Georgia, "Times New Roman", serif; line-height: 1.3; }

button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  padding: 9px 16px;
}
button:hover { border-color: var(--accent); }
.btn-primary {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #fff;
  font-weight: 600;
  /* anchors styled as buttons need the box props buttons inherit */
  display: inline-block;
  padding: 9px 16px;
  border-radius: 10px;
  text-decoration: none;
  font-size: .95rem;
  cursor: pointer;
}
.btn-primary:hover { filter: brightness(1.08); }
button:disabled { opacity: .5; cursor: default; }

/* ---------- home / stage map ---------- */
.home-head { margin: 8px 0 22px; }
.home-head h1 { margin: 0 0 6px; font-size: 1.7rem; }
.home-head p { margin: 0; color: var(--text-soft); max-width: 60ch; }

.continue-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 18px 0 28px;
  padding: 16px 18px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-decoration: none;
}
.continue-card .cc-label { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; opacity: .8; }
.continue-card .cc-title { font-weight: 600; font-size: 1.05rem; }
.continue-card .cc-arrow { font-size: 1.4rem; flex-shrink: 0; }

.stage {
  position: relative;
  margin: 0 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.stage.locked { opacity: .62; background: var(--surface-2); box-shadow: none; }
.stage-head { padding: 16px 18px 6px; }
.stage-kicker {
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent-ink);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}
.stage.locked .stage-kicker { color: var(--text-soft); }
.stage-head h2 { margin: 4px 0 2px; font-size: 1.25rem; }
.stage-dur { color: var(--text-soft); font-size: .88rem; }
.stage-gate {
  margin: 10px 18px 12px;
  padding: 10px 12px;
  background: var(--surface-2);
  border-left: 3px solid var(--gold);
  border-radius: 0 8px 8px 0;
  font-size: .88rem;
  color: var(--text-soft);
}
.stage-gate strong { color: var(--text); }

.mod-list { list-style: none; margin: 0; padding: 0 10px 12px; }
.mod-list a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 10px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
}
.mod-list a:hover { background: var(--surface-2); }
.mod-id {
  flex-shrink: 0;
  width: 44px;
  text-align: center;
  font-size: .78rem;
  font-weight: 700;
  color: var(--accent-ink);
  background: var(--accent-soft);
  border-radius: 8px;
  padding: 4px 0;
}
.mod-title { flex: 1; min-width: 0; }
.mod-prog { flex-shrink: 0; font-size: .82rem; color: var(--text-soft); white-space: nowrap; }
.mod-prog.done { color: var(--ok); font-weight: 600; }
.mod-diag .mod-id { background: var(--surface-2); color: var(--gold); }

.lock-note { padding: 0 18px 14px; font-size: .85rem; color: var(--text-soft); }

/* ---------- module view ---------- */
.crumbs { font-size: .85rem; color: var(--text-soft); margin-bottom: 14px; }
.crumbs a { color: var(--text-soft); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }

.module-head h1 { margin: 0 0 4px; font-size: 1.55rem; }
.module-meta { color: var(--text-soft); font-size: .88rem; margin-bottom: 14px; }

.intro { margin-bottom: 20px; }

.lesson-list { list-style: none; margin: 0; padding: 0; }
.lesson-list li { margin: 0 0 8px; }
.lesson-list a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  text-decoration: none;
  color: var(--text);
}
.lesson-list a:hover { border-color: var(--accent); }
.l-status {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .78rem;
  border: 1.5px solid var(--line);
  color: var(--text-soft);
}
.l-status.passed { background: var(--ok-soft); border-color: var(--ok); color: var(--ok); }
.l-title { flex: 1; min-width: 0; }
.l-score { flex-shrink: 0; font-size: .8rem; color: var(--text-soft); }

.diag-results {
  margin: 20px 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.diag-results h2 { margin: 0 0 10px; font-size: 1.15rem; }

/* ---------- lesson view ---------- */
.lesson-body { max-width: 68ch; }
.lesson-body h2 { font-size: 1.45rem; margin: 26px 0 12px; }
.lesson-body h3 { font-size: 1.15rem; margin: 24px 0 10px; }
.lesson-body h4 { font-size: 1rem; margin: 20px 0 8px; }
.lesson-body p { margin: 0 0 14px; }
.lesson-body ul, .lesson-body ol { margin: 0 0 14px; padding-left: 24px; }
.lesson-body li { margin-bottom: 5px; }
.lesson-body blockquote {
  margin: 16px 0;
  padding: 10px 16px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 10px 10px 0;
  color: var(--text);
}
.lesson-body blockquote p:last-child { margin-bottom: 0; }
.lesson-body code {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: .88em;
  background: var(--surface-2);
  padding: 2px 6px;
  border-radius: 6px;
}
.lesson-body hr { border: none; border-top: 1px solid var(--line); margin: 24px 0; }
.table-wrap { overflow-x: auto; margin: 16px 0; border: 1px solid var(--line); border-radius: 10px; }
.lesson-body table { border-collapse: collapse; width: 100%; font-size: .9rem; }
.lesson-body th, .lesson-body td { padding: 9px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.lesson-body th { background: var(--surface-2); font-weight: 600; white-space: nowrap; }
.lesson-body tr:last-child td { border-bottom: none; }

.lesson-done-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  color: var(--ok);
  background: var(--ok-soft);
  padding: 4px 12px;
  border-radius: 999px;
  margin: 4px 0 10px;
  font-weight: 600;
}

/* prev/next */
.lesson-nav {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 34px;
}
.lesson-nav a, .lesson-nav span.nav-empty { flex: 1; }
.lesson-nav a {
  display: block;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  text-decoration: none;
  color: var(--text);
  font-size: .9rem;
}
.lesson-nav a:hover { border-color: var(--accent); }
.lesson-nav .nav-dir { display: block; font-size: .75rem; text-transform: uppercase; letter-spacing: .07em; color: var(--text-soft); }
.lesson-nav a.nav-next { text-align: right; }

@media (max-width: 640px) {
  .lesson-nav {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    margin: 0;
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
    background: color-mix(in srgb, var(--bg) 92%, transparent);
    backdrop-filter: blur(8px);
    border-top: 1px solid var(--line);
    z-index: 15;
  }
  .lesson-nav a { padding: 8px 12px; box-shadow: var(--shadow); }
  main.has-fixed-nav { padding-bottom: 130px; }
}

/* ---------- quiz ---------- */
.quiz {
  margin: 26px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.quiz-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  font-size: .85rem;
  color: var(--text-soft);
}
.quiz-head .q-kicker { font-weight: 700; color: var(--accent-ink); text-transform: uppercase; letter-spacing: .08em; font-size: .76rem; }
.quiz-inner { padding: 18px; }
.q-text { font-weight: 600; margin: 0 0 14px; font-size: 1.02rem; }
.q-opts { list-style: none; margin: 0; padding: 0; }
.q-opts li { margin-bottom: 8px; }
.q-opt {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  width: 100%;
  text-align: left;
  padding: 11px 13px;
  border: 1.5px solid var(--line);
  border-radius: 11px;
  background: var(--surface);
  line-height: 1.45;
}
.q-opt:hover:not(:disabled) { border-color: var(--accent); }
.q-letter {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--text-soft);
  font-size: .78rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}
.q-opt.correct { border-color: var(--ok); background: var(--ok-soft); }
.q-opt.correct .q-letter { background: var(--ok); color: #fff; }
.q-opt.wrong { border-color: var(--danger); background: var(--danger-soft); }
.q-opt.wrong .q-letter { background: var(--danger); color: #fff; }
.q-feedback {
  margin: 14px 0 0;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: .93rem;
}
.q-feedback.good { background: var(--ok-soft); }
.q-feedback.bad { background: var(--danger-soft); }
.q-feedback .fb-verdict { font-weight: 700; display: block; margin-bottom: 4px; }
.q-feedback.good .fb-verdict { color: var(--ok); }
.q-feedback.bad .fb-verdict { color: var(--danger); }
.q-next { margin-top: 14px; text-align: right; }

.quiz-result { padding: 26px 18px; text-align: center; }
.quiz-result .qr-score { font-family: Georgia, serif; font-size: 2.4rem; font-weight: 700; margin: 4px 0; }
.quiz-result .qr-score.pass { color: var(--ok); }
.quiz-result .qr-score.fail { color: var(--danger); }
.quiz-result .qr-note { color: var(--text-soft); margin-bottom: 16px; }
.quiz-result .qr-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.diag-verdicts { text-align: left; margin: 18px auto 6px; max-width: 56ch; }
.diag-verdicts table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.diag-verdicts th, .diag-verdicts td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; }
.verdict-tag { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .78rem; font-weight: 700; white-space: nowrap; }
.verdict-skim { background: var(--ok-soft); color: var(--ok); }
.verdict-normal { background: var(--accent-soft); color: var(--accent-ink); }
.verdict-full { background: var(--danger-soft); color: var(--danger); }
.diag-note {
  margin-top: 14px;
  padding: 10px 14px;
  background: var(--surface-2);
  border-left: 3px solid var(--gold);
  border-radius: 0 8px 8px 0;
  font-size: .88rem;
  text-align: left;
}

/* ---------- settings ---------- */
.settings-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.settings-card h2 { margin: 0 0 8px; font-size: 1.15rem; }
.settings-card p { color: var(--text-soft); font-size: .92rem; margin: 0 0 12px; }
.settings-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.msg-ok { color: var(--ok); font-size: .9rem; margin-top: 10px; }
.msg-err { color: var(--danger); font-size: .9rem; margin-top: 10px; }

@media (max-width: 420px) {
  body { font-size: 15.5px; }
  main { padding: 14px 12px 96px; }
  .mod-prog { display: none; }
  .continue-card { flex-direction: row; }
  .stage-head, .stage-gate { margin-left: 14px; margin-right: 14px; }
  .stage-head { padding: 14px 0 4px; }
  .quiz-inner { padding: 14px; }
}

/* ---------- section tab bar (Phase 3b) ---------- */
.tabbar {
  position: sticky;
  top: 47px;
  z-index: 19;
  display: flex;
  gap: 2px;
  padding: 6px 12px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
}
.tabbar a {
  padding: 10px 12px; /* ≥40px tap target on phones */
  border-radius: 999px;
  text-decoration: none;
  color: var(--text-soft);
  font-size: .92rem;
  white-space: nowrap;
}
.tabbar a.active { background: var(--accent-soft); color: var(--accent-ink); font-weight: 600; }
.tabbar a:hover { color: var(--text); }

/* ---------- tool cards & calculators ---------- */
.tools-note { color: var(--text-soft); max-width: 60ch; }
.tool-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 18px 16px;
  margin: 16px 0;
}
.tool-card h2 { margin: 0 0 4px; font-size: 1.15rem; }
.tool-ref {
  font-size: .72rem;
  font-weight: 600;
  color: var(--accent-ink);
  background: var(--accent-soft);
  border-radius: 6px;
  padding: 2px 7px;
  vertical-align: 2px;
  margin-left: 6px;
}
.tool-sub { color: var(--text-soft); font-size: .92rem; margin: 4px 0 12px; }
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px 12px;
  margin: 10px 0;
}
.tool-grid label { display: flex; flex-direction: column; gap: 4px; font-size: .85rem; color: var(--text-soft); }
.tool-grid input, .tool-grid select {
  font: inherit;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 9px 10px;
  min-width: 0;
  width: 100%;
}
.tool-grid input:focus, .tool-grid select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.check-row { display: flex; align-items: center; gap: 8px; font-size: .9rem; color: var(--text-soft); margin: 8px 0; }
.check-row input { width: 17px; height: 17px; accent-color: var(--accent); }
.tool-out { margin-top: 8px; }
.tool-err {
  background: var(--danger-soft);
  color: var(--danger);
  border-radius: 9px;
  padding: 9px 12px;
  font-size: .9rem;
  margin: 8px 0;
}
.tool-fine { color: var(--text-soft); font-size: .84rem; margin: 8px 0 0; }
.btn-small {
  font: inherit;
  font-size: .85rem;
  padding: 7px 12px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
}
.atr-help { margin: 6px 0; }
.atr-help summary { cursor: pointer; color: var(--accent-ink); font-size: .88rem; }

.calc-table { width: 100%; border-collapse: collapse; font-size: .92rem; margin: 8px 0; }
.calc-table th {
  text-align: left;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text-soft);
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
}
.calc-table td { padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
.calc-table tr:last-child td { border-bottom: none; }
.calc-table .row-strong td { font-weight: 600; }
.calc-table .row-warn td { color: var(--gold); }

/* ---------- journal ---------- */
.j-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.j-head .btn-primary { text-decoration: none; }
.gate-pass {
  background: var(--ok-soft);
  color: var(--ok);
  border-radius: 10px;
  padding: 11px 14px;
  font-weight: 600;
  margin: 8px 0;
}
.gate-table td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.g-ok { color: var(--ok); font-weight: 600; }
.g-no { color: var(--danger); font-weight: 600; }
.g-part { color: var(--gold); font-weight: 600; }
.j-scroll { overflow-x: auto; margin: 0 -18px; padding: 0 18px; }
.j-table { min-width: 640px; }
.j-table tbody tr { cursor: pointer; }
.j-table tbody tr:hover td { background: var(--surface-2); }
.j-open {
  font-size: .8rem;
  font-weight: 600;
  color: var(--accent-ink);
  background: var(--accent-soft);
  border-radius: 6px;
  padding: 2px 8px;
  white-space: nowrap;
}
.j-form-actions { flex-wrap: wrap; }
.rv-src { font-size: .78rem; color: var(--text-soft); margin-bottom: 6px; }

/* ---------- markets tab (Phase 4) ---------- */
.mk-addrow { display: flex; gap: 8px; margin: 4px 0 10px; }
.mk-addrow input {
  flex: 1;
  font: inherit;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 9px 10px;
  min-width: 0;
}
.mk-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  margin: 10px 0;
  background: var(--surface);
}
.mk-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.mk-name { color: var(--text-soft); font-size: .82rem; }
.mk-del {
  border: none;
  background: none;
  color: var(--text-soft);
  font-size: 1rem;
  padding: 6px 8px;
  cursor: pointer;
  border-radius: 8px;
}
.mk-del:hover { background: var(--danger-soft); color: var(--danger); }
.mk-price { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin: 6px 0 2px; }
.mk-close { font-size: 1.3rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.mk-up { color: var(--ok); font-weight: 600; }
.mk-dn { color: var(--danger); font-weight: 600; }
.mk-date { color: var(--text-soft); font-size: .8rem; }
.mk-ind { display: flex; gap: 6px; flex-wrap: wrap; margin: 8px 0 4px; }
.mk-badge {
  font-size: .78rem;
  font-weight: 600;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-soft);
  border: 1px solid var(--line);
}
.mk-badge.mk-ok { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.mk-badge.mk-no { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.mk-sub { color: var(--text-soft); font-size: .84rem; margin-top: 6px; }
.mk-stale { font-size: .76rem; }
.mk-warn {
  background: var(--danger-soft);
  color: var(--danger);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: .84rem;
  margin-top: 8px;
}
.mk-learn-item {
  display: block;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  margin: 8px 0;
  color: var(--text);
  text-decoration: none;
  font-size: .92rem;
}
a.mk-learn-item:hover { border-color: var(--accent); }
.mk-news-item {
  display: block;
  padding: 10px 2px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--text);
}
.mk-news-item:last-of-type { border-bottom: none; }
.mk-news-title { display: block; font-size: .92rem; line-height: 1.45; }
.mk-news-meta { display: block; color: var(--text-soft); font-size: .76rem; margin-top: 3px; }