/* CL Invest Academy — the design language of the Monetary Notes dispatches,
   so the app and the writing read as one thing. */

:root {
  --bg: #e9eae1;
  --surface: #f3f3ec;
  --surface-2: #dedfd2;
  --ink: #1c1e1a;
  --ink-soft: #55584f;
  --ink-faint: #83867b;
  --line: rgba(28, 30, 26, 0.16);
  --line-strong: rgba(28, 30, 26, 0.34);
  --gold: #93692a;
  --navy: #2b3f63;
  --warn: #953f31;
  --good: #3c5f4d;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14161b;
    --surface: #1b1e24;
    --surface-2: #23262d;
    --ink: #ece9df;
    --ink-soft: #a8ac9f;
    --ink-faint: #767a70;
    --line: rgba(236, 233, 223, 0.14);
    --line-strong: rgba(236, 233, 223, 0.3);
    --gold: #d1a15a;
    --navy: #8ba6d6;
    --warn: #d98f7e;
    --good: #7fb59c;
  }
}
:root[data-theme="dark"] {
  --bg: #14161b; --surface: #1b1e24; --surface-2: #23262d;
  --ink: #ece9df; --ink-soft: #a8ac9f; --ink-faint: #767a70;
  --line: rgba(236, 233, 223, 0.14); --line-strong: rgba(236, 233, 223, 0.3);
  --gold: #d1a15a; --navy: #8ba6d6; --warn: #d98f7e; --good: #7fb59c;
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: "Public Sans", ui-sans-serif, system-ui, sans-serif;
  font-size: 15px; line-height: 1.6; -webkit-font-smoothing: antialiased;
}
.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; }
.hidden { display: none !important; }
h1, h2, h3 {
  font-family: "Fraunces", Georgia, serif; font-optical-sizing: auto;
  font-weight: 500; letter-spacing: -0.01em; margin: 0;
}

/* ---------- top bar ---------- */
.topbar {
  display: flex; align-items: center; gap: 2rem;
  padding: 0 1.5rem; height: 58px;
  border-bottom: 1px solid var(--line);
  background: var(--surface); position: sticky; top: 0; z-index: 40;
}
.brand { display: flex; align-items: baseline; gap: 0.55rem; }
.brand-mark {
  font-family: "IBM Plex Mono", monospace; font-weight: 600; font-size: 0.8rem;
  letter-spacing: 0.12em; color: var(--bg); background: var(--gold);
  padding: 0.2rem 0.42rem; border-radius: 3px;
}
.brand-name { font-family: "Fraunces", Georgia, serif; font-size: 1.05rem; }
.tabs { display: flex; gap: 0.3rem; margin-left: auto; margin-right: auto; }
.tab {
  font: inherit; font-size: 0.88rem; color: var(--ink-soft);
  background: none; border: 0; border-bottom: 2px solid transparent;
  padding: 0.45rem 0.75rem; cursor: pointer; border-radius: 3px 3px 0 0;
}
.tab:hover { color: var(--ink); background: var(--surface-2); }
.tab.active { color: var(--ink); border-bottom-color: var(--gold); }
.topbar-right { display: flex; align-items: center; }
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--ink-faint); display: inline-block;
}
.dot.ok { background: var(--good); }
.dot.bad { background: var(--warn); }

main { max-width: 1060px; margin: 0 auto; padding: 2rem 1.5rem 5rem; }
.view { display: none; }
.view.active { display: block; }

.eyebrow {
  font-family: "IBM Plex Mono", monospace; font-size: 0.7rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold);
}
.page-head { margin-bottom: 2rem; }
.page-head h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); margin: 0.4rem 0 0; }
.dek { color: var(--ink-soft); max-width: 46rem; margin: 0.7rem 0 0; }

/* ---------- empty states ---------- */
.empty {
  border: 1px dashed var(--line-strong); border-radius: 8px;
  padding: 2.5rem 2rem; text-align: left; max-width: 44rem;
}
.empty h2 { font-size: 1.5rem; margin: 0.4rem 0 0.6rem; }
.empty p { color: var(--ink-soft); margin: 0; max-width: 38rem; }

/* ---------- search ---------- */
.searchwrap { position: relative; margin-bottom: 2rem; }
#search {
  width: 100%; font: inherit; font-size: 1rem;
  padding: 0.85rem 1rem; color: var(--ink);
  background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: 6px;
}
#search:focus { outline: 2px solid var(--gold); outline-offset: -1px; }
.search-results {
  position: absolute; top: calc(100% + 4px); left: 0; right: 0; z-index: 30;
  background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: 6px; overflow: hidden; max-height: 380px; overflow-y: auto;
  box-shadow: 0 12px 32px rgba(0,0,0,0.18);
}
.sr {
  display: grid; grid-template-columns: 6.5rem 1fr auto;
  gap: 0.8rem; align-items: center;
  padding: 0.6rem 0.9rem; cursor: pointer; border-bottom: 1px solid var(--line);
}
.sr:last-child { border-bottom: 0; }
.sr:hover, .sr.sel { background: var(--surface-2); }
.sr-sym { font-family: "IBM Plex Mono", monospace; font-size: 0.85rem; }
.sr-name { color: var(--ink-soft); font-size: 0.88rem;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sr-mkt {
  font-family: "IBM Plex Mono", monospace; font-size: 0.66rem;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint);
  border: 1px solid var(--line); border-radius: 999px; padding: 0.1rem 0.5rem;
  white-space: nowrap;
}
.chiprow { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 1.2rem; }
.chip {
  font-family: "IBM Plex Mono", monospace; font-size: 0.8rem;
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 0.3rem 0.8rem; cursor: pointer;
}
.chip:hover { border-color: var(--gold); color: var(--gold); }

/* ---------- instrument header ---------- */
.inst-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 2rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--line);
}
.inst-head h1 { font-size: clamp(1.6rem, 3.4vw, 2.2rem); margin: 0.35rem 0 0; }
.inst-sub { color: var(--ink-faint); font-size: 0.86rem; margin-top: 0.3rem;
  display: flex; gap: 0.8rem; }
.inst-price { text-align: right; }
.px { font-family: "IBM Plex Mono", monospace; font-size: 1.9rem;
  font-variant-numeric: tabular-nums; }
.chg { font-family: "IBM Plex Mono", monospace; font-size: 0.9rem; }
.up { color: var(--good); }
.down { color: var(--warn); }
.btn-ghost {
  margin-top: 0.7rem; font: inherit; font-size: 0.8rem;
  background: none; color: var(--ink-soft);
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 0.25rem 0.75rem; cursor: pointer;
}
.btn-ghost:hover { color: var(--gold); border-color: var(--gold); }

.stat-strip {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line);
  margin: 1.6rem 0; border-radius: 6px; overflow: hidden;
}
.stat { background: var(--surface); padding: 0.8rem 1rem; }
.stat-label {
  font-family: "IBM Plex Mono", monospace; font-size: 0.64rem;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint);
}
.stat-val { font-family: "IBM Plex Mono", monospace; font-size: 1.05rem;
  margin-top: 0.25rem; font-variant-numeric: tabular-nums; }
.stat-val.nodata { font-size: 0.8rem; color: var(--ink-faint);
  font-family: "Public Sans", sans-serif; font-style: italic; }

/* ---------- cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 8px; margin-bottom: 1.5rem; overflow: hidden;
}
.card-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.9rem 1.1rem; border-bottom: 1px solid var(--line);
}
.card-head h3 { font-size: 1rem; }
.rangebar { display: flex; gap: 0.2rem; }
.rangebar button {
  font-family: "IBM Plex Mono", monospace; font-size: 0.72rem;
  background: none; color: var(--ink-faint); border: 1px solid transparent;
  padding: 0.2rem 0.5rem; border-radius: 3px; cursor: pointer;
}
.rangebar button:hover { color: var(--ink); }
.rangebar button.on {
  color: var(--gold); border-color: var(--line-strong);
  background: var(--surface-2);
}
#chart { padding: 0.6rem; }
#chart svg { display: block; width: 100%; height: auto; }

/* ---------- capability panel ---------- */
.cap-body { padding: 1.1rem; }
.cap-row {
  display: grid; grid-template-columns: 1.2rem 12rem 1fr;
  gap: 0.8rem; align-items: baseline; padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
}
.cap-row:last-child { border-bottom: 0; }
.cap-yes { color: var(--good); }
.cap-no { color: var(--ink-faint); }
.cap-name { font-size: 0.9rem; }
.cap-why { color: var(--ink-soft); font-size: 0.86rem; }
.cap-why.permanent { color: var(--ink-faint); font-style: italic; }

/* ---------- coverage table ---------- */
.cov-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.cov-table th, .cov-table td {
  padding: 0.65rem 0.7rem; border-bottom: 1px solid var(--line);
  text-align: center;
}
.cov-table th {
  font-family: "IBM Plex Mono", monospace; font-size: 0.66rem;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint);
  font-weight: 500; border-bottom-color: var(--line-strong);
}
.cov-table td.mkt, .cov-table th.mkt { text-align: left; }
.cov-table td.mkt b { font-weight: 600; }
.cov-note { color: var(--ink-faint); font-size: 0.78rem; display: block;
  margin-top: 0.15rem; max-width: 30rem; }
.tick { color: var(--good); font-size: 1rem; }
.cross { color: var(--ink-faint); font-size: 1rem; }

.toast {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: var(--bg); font-size: 0.85rem;
  padding: 0.6rem 1.1rem; border-radius: 999px; z-index: 100;
}

/* ---------- track: actions, tables, forms ---------- */
.strip-actions {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; margin-bottom: 1.4rem; flex-wrap: wrap;
}
.btn {
  font: inherit; font-size: 0.86rem; font-weight: 500;
  background: var(--gold); color: var(--bg); border: 0;
  padding: 0.5rem 1rem; border-radius: 5px; cursor: pointer;
}
.btn:hover { filter: brightness(1.08); }
.subtabs { display: flex; gap: 0.25rem; }
.subtab {
  font: inherit; font-size: 0.82rem; color: var(--ink-soft);
  background: none; border: 1px solid transparent; border-radius: 4px;
  padding: 0.3rem 0.7rem; cursor: pointer;
}
.subtab:hover { color: var(--ink); }
.subtab.on {
  color: var(--gold); border-color: var(--line-strong);
  background: var(--surface);
}

.banner {
  border: 1px solid var(--warn); border-left-width: 3px; border-radius: 6px;
  background: color-mix(in srgb, var(--warn) 8%, var(--surface));
  padding: 0.8rem 1rem; margin-bottom: 1.4rem; font-size: 0.9rem;
}

.tbl { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
.tbl th, .tbl td {
  padding: 0.6rem 0.7rem; border-bottom: 1px solid var(--line);
  text-align: left; vertical-align: top;
}
.tbl th {
  font-family: "IBM Plex Mono", monospace; font-size: 0.64rem;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint);
  font-weight: 500; border-bottom-color: var(--line-strong);
}
.tbl td.r, .tbl th.r { text-align: right; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl .mono { font-family: "IBM Plex Mono", monospace;
  font-variant-numeric: tabular-nums; }
.tbl .sub { display: block; font-size: 0.68rem; color: var(--ink-faint);
  font-family: "IBM Plex Mono", monospace; }
.lnk { color: var(--navy); cursor: pointer; text-decoration: none; font-weight: 500; }
.lnk:hover { color: var(--gold); text-decoration: underline; }
.row-breach { background: color-mix(in srgb, var(--warn) 7%, transparent); }
.flag-breach { color: var(--warn); font-weight: 600; font-size: 0.8rem; }
/* "your call" is not a dash — a manual invalidation is a real one the app
   simply cannot check, and must never read as an absent one. */
.manual { color: var(--ink-faint); font-style: italic; font-size: 0.8rem; }

.big-stat { display: flex; align-items: baseline; gap: 0.9rem; margin-bottom: 0.4rem; }
.big-val {
  font-family: "IBM Plex Mono", monospace; font-size: 2.4rem; line-height: 1;
  font-variant-numeric: tabular-nums;
}
.big-label { color: var(--ink-soft); font-size: 0.9rem; max-width: 22rem; }

/* ---------- modal + form ---------- */
.modal {
  position: fixed; inset: 0; z-index: 80; display: flex;
  align-items: flex-start; justify-content: center; padding: 4vh 1rem;
  background: rgba(0,0,0,0.45); overflow-y: auto;
}
.modal-card {
  background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: 8px; width: min(700px, 100%);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.form { padding: 1.1rem; }
.form label { display: block; font-size: 0.8rem; color: var(--ink-soft);
  margin-bottom: 0.9rem; }
.frow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; }
.frow.dim { opacity: 0.45; }
.form input, .form select, .form textarea {
  display: block; width: 100%; margin-top: 0.25rem; font: inherit;
  font-size: 0.9rem; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line-strong); border-radius: 5px;
  padding: 0.45rem 0.6rem;
}
.form textarea { resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus {
  outline: 2px solid var(--gold); outline-offset: -1px;
}
.form fieldset {
  border: 1px solid var(--line); border-radius: 6px;
  padding: 0.9rem 0.9rem 0.1rem; margin: 0 0 1rem;
}
.form legend {
  font-family: "IBM Plex Mono", monospace; font-size: 0.66rem;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint);
  padding: 0 0.4rem;
}
.invalidation { border-color: var(--gold) !important; }
.invalidation legend { color: var(--gold); }
.req { color: var(--warn); letter-spacing: 0.06em; }
.opt { color: var(--ink-faint); text-transform: none; letter-spacing: 0;
  font-family: "Public Sans", sans-serif; font-style: italic; }
.form-actions { display: flex; justify-content: flex-end; }
.form-error {
  color: var(--warn); font-size: 0.85rem; margin-bottom: 0.8rem;
  border-left: 3px solid var(--warn); padding-left: 0.7rem;
}

/* ---------- learn: index ---------- */
.track { margin-bottom: 2.2rem; }
.track-h {
  font-family: "IBM Plex Mono", monospace; font-size: 0.7rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold);
  border-bottom: 1px solid var(--line-strong); padding-bottom: 0.5rem;
  margin: 0 0 1rem; font-weight: 500;
}
.lsn-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}
.lsn-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 8px; padding: 1rem 1.1rem 1.1rem; cursor: pointer;
  display: flex; flex-direction: column;
}
.lsn-card:not(.locked):hover { border-color: var(--gold); }
.lsn-card.locked { cursor: default; opacity: 0.6; }
.lsn-card-top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 0.5rem;
}
.lsn-level {
  font-family: "IBM Plex Mono", monospace; font-size: 0.66rem;
  color: var(--ink-faint); letter-spacing: 0.1em;
}
.lsn-badge {
  font-family: "IBM Plex Mono", monospace; font-size: 0.6rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  border-radius: 999px; padding: 0.12rem 0.5rem; border: 1px solid;
}
.lsn-badge.done { color: var(--good); border-color: var(--good); }
.lsn-badge.locked { color: var(--ink-faint); border-color: var(--line-strong); }
.lsn-badge.started { color: var(--gold); border-color: var(--gold); }
.lsn-title { font-size: 1.08rem; margin: 0 0 0.4rem; }
.lsn-blurb { color: var(--ink-soft); font-size: 0.88rem; margin: 0 0 0.7rem; flex: 1; }
.lsn-locked-why {
  font-size: 0.8rem; color: var(--ink-faint); border-left: 2px solid var(--line-strong);
  padding-left: 0.6rem; margin-bottom: 0.6rem;
}
.lsn-unlocks {
  font-size: 0.72rem; color: var(--ink-faint);
  border-top: 1px solid var(--line); padding-top: 0.55rem;
}

/* ---------- learn: lesson ---------- */
.lesson-head { margin: 1.2rem 0 1.8rem; }
.lesson-head h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin: 0.4rem 0 0; }
.lesson-body {
  max-width: 40rem; font-size: 1.02rem; line-height: 1.75;
  margin-bottom: 2.4rem;
}
.lesson-body h4 {
  font-family: "Fraunces", Georgia, serif; font-size: 1.15rem; font-weight: 500;
  margin: 2rem 0 0.6rem;
}
.lesson-body p { margin: 0 0 1rem; }
.edu-lead { font-size: 1.12rem; color: var(--ink-soft); }
.lesson-body .edu-formula {
  font-family: "IBM Plex Mono", monospace; font-size: 0.92rem;
  background: var(--surface); border-left: 2px solid var(--gold);
  padding: 0.75rem 1rem; margin: 1.2rem 0; border-radius: 0 4px 4px 0;
}
.lesson-body .edu-inline {
  font-family: "IBM Plex Mono", monospace; font-size: 0.86em;
  background: var(--surface-2); padding: 0.08rem 0.32rem; border-radius: 3px;
}
.lesson-body .edu-callout {
  background: var(--surface); border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  padding: 0.9rem 1.1rem; margin: 1.4rem 0; border-radius: 0 6px 6px 0;
  font-size: 0.94rem;
}
.lesson-body .edu-list { margin: 0 0 1rem; padding-left: 1.2rem; }
.lesson-body .edu-list li { margin-bottom: 0.5rem; }
.lesson-body .edu-table {
  width: 100%; border-collapse: collapse; margin: 1.2rem 0; font-size: 0.9rem;
}
.lesson-body .edu-table th, .lesson-body .edu-table td {
  padding: 0.45rem 0.7rem; border-bottom: 1px solid var(--line); text-align: left;
}
.lesson-body .edu-table th {
  font-family: "IBM Plex Mono", monospace; font-size: 0.66rem;
  text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-faint);
  font-weight: 500;
}
.lesson-body .edu-table td:last-child { font-family: "IBM Plex Mono", monospace; }

.lesson-live .live-sym { display: flex; gap: 0.4rem; align-items: center; }
.lesson-live .live-sym input {
  width: 8rem; font-size: 0.82rem; padding: 0.28rem 0.5rem;
  background: var(--bg); color: var(--ink);
  border: 1px solid var(--line-strong); border-radius: 4px;
}
.lesson-live .live-sym .btn-ghost { margin-top: 0; }
.lsn-basis {
  border-top: 1px solid var(--line); padding-top: 0.9rem; margin-top: 0.4rem;
}
.lsn-basis-h {
  font-family: "IBM Plex Mono", monospace; font-size: 0.64rem;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint);
  margin-bottom: 0.5rem;
}
.lsn-basis ul { margin: 0; padding-left: 1.1rem; }
.lsn-basis li {
  font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 0.3rem;
  font-family: "IBM Plex Mono", monospace; line-height: 1.5;
}
.lsn-notes p {
  font-size: 0.86rem; color: var(--warn); margin: 0.6rem 0 0;
  border-left: 2px solid var(--warn); padding-left: 0.7rem;
}
.lsn-nodata { font-size: 0.92rem; color: var(--ink-soft); }

.lsn-prompt { font-size: 1rem; margin: 0 0 1.1rem; max-width: 40rem; }
.lsn-answer { display: flex; gap: 0.8rem; align-items: flex-end; flex-wrap: wrap; }
.lsn-answer label {
  display: block; font-size: 0.72rem; color: var(--ink-faint);
  font-family: "IBM Plex Mono", monospace; letter-spacing: 0.08em;
  text-transform: uppercase;
}
.lsn-answer input {
  display: block; margin-top: 0.3rem; width: 10rem; font-size: 0.95rem;
  padding: 0.45rem 0.6rem; background: var(--bg); color: var(--ink);
  border: 1px solid var(--line-strong); border-radius: 5px;
}
.lsn-choices { display: flex; flex-direction: column; gap: 0.55rem; }
.lsn-choice {
  display: flex; gap: 0.8rem; align-items: flex-start; text-align: left;
  font: inherit; font-size: 0.94rem; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line-strong);
  border-radius: 6px; padding: 0.7rem 0.9rem; cursor: pointer;
}
.lsn-choice:hover { border-color: var(--gold); }
.lsn-choice-n {
  font-family: "IBM Plex Mono", monospace; font-size: 0.8rem;
  color: var(--gold); flex-shrink: 0;
}
.lsn-result {
  margin-top: 1.1rem; padding: 0.9rem 1.1rem; border-radius: 6px;
  border-left: 3px solid; font-size: 0.94rem;
}
.lsn-result:empty { display: none; }
.lsn-result p { margin: 0.6rem 0 0; color: var(--ink-soft); }
.lsn-result.good { border-color: var(--good); background: color-mix(in srgb, var(--good) 8%, var(--surface)); }
.lsn-result.bad { border-color: var(--warn); background: color-mix(in srgb, var(--warn) 8%, var(--surface)); }
.lsn-result.neutral { border-color: var(--line-strong); background: var(--surface); }
.lsn-unlocked { color: var(--gold) !important; font-size: 0.86rem; }
#learn-back { margin-bottom: 0.5rem; }

.tool-locked {
  font-size: 0.92rem; color: var(--ink-soft);
  border-left: 2px solid var(--line-strong); padding-left: 0.8rem;
}
.card-note {
  font-family: "IBM Plex Mono", monospace; font-size: 0.66rem;
  color: var(--ink-faint); letter-spacing: 0.04em;
}

/* ---------- the map ---------- */
.map-legend {
  display: flex; flex-wrap: wrap; gap: 1.1rem; align-items: center;
  font-family: "IBM Plex Mono", monospace; font-size: 0.66rem;
  letter-spacing: 0.06em; color: var(--ink-faint);
  margin: 0 0 1.4rem;
}
.mleg { display: flex; align-items: center; gap: 0.4rem; }
.mleg-r { margin-left: auto; }
.mline { width: 20px; height: 0; border-top: 2px solid var(--ink-faint); display: inline-block; }
.mline.drives { border-top-color: var(--gold); }
.mline.dampens { border-top-color: var(--warn); border-top-style: dashed; }
.mline.competes { border-top-color: var(--navy); border-top-style: dotted; }
.mline.structural { border-top-color: var(--line-strong); }
.mdot { width: 8px; height: 8px; border-radius: 50%; display: inline-block;
  border: 1px solid var(--line-strong); }
.mdot.done { background: var(--good); border-color: var(--good); }
.mdot.new { background: var(--surface-2); }
.mdot.unwritten { background: transparent; border-style: dashed; }

.map-canvas { position: relative; margin-bottom: 2rem; }
.map-edges {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0; overflow: visible;
}
.medge { fill: none; stroke-width: 1.4; opacity: 0.55; }
.medge.k-drives { stroke: var(--gold); }
.medge.k-dampens { stroke: var(--warn); stroke-dasharray: 5 4; }
.medge.k-competes { stroke: var(--navy); stroke-dasharray: 2 4; }
.medge.k-structural { stroke: var(--line-strong); }
.medge.on { opacity: 1; stroke-width: 2.4; }
.medge.dim { opacity: 0.1; }

#map-layers { position: relative; z-index: 1; }
.mlayer { margin-bottom: 2.4rem; }
.mlayer-head {
  display: flex; align-items: baseline; gap: 0.9rem; flex-wrap: wrap;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 0.45rem; margin-bottom: 1.1rem;
}
.mlayer-title {
  font-family: "IBM Plex Mono", monospace; font-size: 0.7rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold);
}
.mlayer-blurb { font-size: 0.82rem; color: var(--ink-faint); }
.mrow {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.9rem;
}
.mnode {
  background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: 8px; padding: 0.75rem 0.85rem; cursor: pointer;
  transition: border-color 0.12s ease, transform 0.12s ease;
}
.mnode:hover { border-color: var(--gold); transform: translateY(-1px); }
.mnode.sel { border-color: var(--gold); box-shadow: 0 0 0 1px var(--gold); }
.mnode-title {
  font-family: "Fraunces", Georgia, serif; font-size: 1rem; font-weight: 500;
  margin-bottom: 0.25rem;
}
.mnode-blurb { font-size: 0.78rem; color: var(--ink-soft); line-height: 1.45; }
.mnode-tag {
  font-family: "IBM Plex Mono", monospace; font-size: 0.6rem;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint);
  margin-top: 0.5rem;
}
.mnode-tag.done { color: var(--good); }
.mnode.st-completed { border-left: 3px solid var(--good); }
.mnode.st-unwritten { border-style: dashed; opacity: 0.68; }
.mnode.locked { opacity: 0.8; }

.md-blurb { font-size: 1rem; margin: 0 0 1.2rem; color: var(--ink-soft); }
.md-cols {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.4rem; margin-bottom: 1.3rem;
}
.md-list { margin: 0; padding-left: 1.1rem; }
.md-list li { font-size: 0.88rem; margin-bottom: 0.4rem; }
.medge-label { color: var(--ink-faint); font-style: italic; }

/* ---------- the quiz ---------- */
.quiz-q {
  border: 1px solid var(--line); border-radius: 8px;
  padding: 1rem 1.1rem; margin-bottom: 1rem; background: var(--bg);
}
.quiz-q.right { border-color: var(--good); }
.quiz-q.wrong { border-color: var(--warn); }
.quiz-qhead { display: grid; grid-template-columns: 1.6rem 1fr; gap: 0.7rem;
  align-items: baseline; margin-bottom: 0.5rem; }
.quiz-n {
  font-family: "IBM Plex Mono", monospace; font-size: 0.72rem; color: var(--gold);
}
.quiz-text { font-size: 0.98rem; line-height: 1.55; }
.quiz-note {
  font-size: 0.82rem; color: var(--ink-faint); font-style: italic;
  margin: 0 0 0.7rem 2.3rem;
}
.quiz-opts { display: flex; flex-direction: column; gap: 0.4rem; margin-left: 2.3rem; }
.quiz-opt {
  display: grid; grid-template-columns: 1.3rem 1.1rem 1fr; gap: 0.5rem;
  align-items: baseline; font-size: 0.9rem; line-height: 1.5;
  padding: 0.5rem 0.7rem; border: 1px solid var(--line);
  border-radius: 5px; cursor: pointer;
}
.quiz-opt:hover { border-color: var(--line-strong); }
.quiz-opt input { margin: 0; align-self: center; }
.quiz-letter { font-family: "IBM Plex Mono", monospace; font-size: 0.76rem;
  color: var(--ink-faint); }
.quiz-opt.is-answer {
  border-color: var(--good);
  background: color-mix(in srgb, var(--good) 9%, transparent);
}
.quiz-opt.is-yours {
  border-color: var(--warn);
  background: color-mix(in srgb, var(--warn) 9%, transparent);
}
.quiz-verdict:empty { display: none; }
.quiz-verdict-in {
  margin: 0.8rem 0 0 2.3rem; padding: 0.7rem 0.9rem; border-radius: 5px;
  font-size: 0.88rem; line-height: 1.6; border-left: 3px solid;
}
.quiz-verdict-in.ok { border-color: var(--good); background: var(--surface); }
.quiz-verdict-in.no { border-color: var(--warn); background: var(--surface); }
.quiz-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  margin-top: 0.4rem; }
.lesson-quiz { border-color: var(--line-strong); }
.mnode-tag.mastered { color: var(--gold); }
.mnode.st-mastered { border-left: 3px solid var(--gold); }
.lsn-badge.mastered { color: var(--gold); border-color: var(--gold); }

/* ---------- narrow screens ---------- */
/* Five tabs plus the brand overflow a phone. The tab strip scrolls sideways
   inside itself rather than pushing the whole page wider — a horizontally
   scrolling document body makes every other layout look broken. */
@media (max-width: 620px) {
  .topbar { gap: 0.8rem; padding: 0 0.9rem; }
  .brand-name { display: none; }
  .tabs {
    margin: 0; flex: 1 1 auto; min-width: 0;
    overflow-x: auto; scrollbar-width: none;
  }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { flex: 0 0 auto; padding: 0.45rem 0.55rem; font-size: 0.82rem; }
  main { padding: 1.4rem 1rem 4rem; }
  .inst-head { flex-direction: column; gap: 1rem; }
  .inst-price { text-align: left; }
  .quiz-opts, .quiz-note, .quiz-verdict-in { margin-left: 0; }
  .quiz-opt { grid-template-columns: 1.2rem 1rem 1fr; }
  .frow { grid-template-columns: 1fr; }
}

/* ---------- practice tab ---------- */
.qz-modes { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.2rem; }
.qz-mode {
  display: grid; grid-template-columns: 1.2rem 1fr; gap: 0.7rem;
  align-items: start; padding: 0.7rem 0.9rem; cursor: pointer;
  border: 1px solid var(--line); border-radius: 6px;
}
.qz-mode:hover { border-color: var(--line-strong); }
.qz-mode:has(input:checked) { border-color: var(--gold);
  background: color-mix(in srgb, var(--gold) 7%, transparent); }
.qz-mode input { margin-top: 0.25rem; }
.qz-mode b { display: block; font-size: 0.92rem; margin-bottom: 0.15rem; }
.qz-mode span span, .qz-mode > span { font-size: 0.82rem; color: var(--ink-soft); }
.qz-start-row { display: flex; align-items: flex-end; gap: 1rem; }
.qz-start-row label { font-size: 0.72rem; color: var(--ink-faint);
  font-family: "IBM Plex Mono", monospace; letter-spacing: 0.08em;
  text-transform: uppercase; }
.qz-start-row select {
  display: block; margin-top: 0.3rem; font: inherit; font-size: 0.9rem;
  padding: 0.4rem 0.6rem; background: var(--bg); color: var(--ink);
  border: 1px solid var(--line-strong); border-radius: 5px;
}

.qz-progress-wrap { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.qz-progress { font-family: "IBM Plex Mono", monospace; font-size: 0.72rem;
  color: var(--ink-faint); letter-spacing: 0.06em; white-space: nowrap; }
.qz-bar { flex: 1; height: 3px; background: var(--surface-2); border-radius: 999px; }
.qz-bar > span { display: block; height: 100%; background: var(--gold);
  border-radius: 999px; transition: width 0.3s ease; }

.qz-topic {
  font-family: "IBM Plex Mono", monospace; font-size: 0.62rem;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold);
  margin-bottom: 0.5rem;
}
.qz-q { font-size: 1.1rem; line-height: 1.55; margin: 0 0 1.2rem;
  font-family: "Public Sans", sans-serif; font-weight: 500; }
.qz-opts { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.3rem; }
.qz-opt {
  display: grid; grid-template-columns: 1.3rem 1fr; gap: 0.6rem;
  align-items: baseline; text-align: left; font: inherit; font-size: 0.94rem;
  line-height: 1.5; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line-strong); border-radius: 6px;
  padding: 0.65rem 0.85rem; cursor: pointer;
}
.qz-opt:hover:not(:disabled) { border-color: var(--gold); }
.qz-opt.sel { border-color: var(--gold); background: color-mix(in srgb, var(--gold) 9%, var(--bg)); }
.qz-letter { font-family: "IBM Plex Mono", monospace; font-size: 0.78rem; color: var(--ink-faint); }
.qz-graded .qz-opt { cursor: default; }
.qz-opt.is-answer { border-color: var(--good);
  background: color-mix(in srgb, var(--good) 10%, transparent); }
.qz-opt.is-yours { border-color: var(--warn);
  background: color-mix(in srgb, var(--warn) 10%, transparent); }

.qz-confbar { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap;
  margin-bottom: 1.2rem; }
.qz-conflabel { font-family: "IBM Plex Mono", monospace; font-size: 0.64rem;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint);
  margin-right: 0.3rem; }
.qz-conf {
  font: inherit; font-size: 0.82rem; background: none; color: var(--ink-soft);
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 0.3rem 0.85rem; cursor: pointer;
}
.qz-conf:hover { color: var(--ink); }
.qz-conf.sel { border-color: var(--gold); color: var(--gold);
  background: color-mix(in srgb, var(--gold) 10%, transparent); }
.qz-flag {
  margin-top: 0.8rem; padding: 0.6rem 0.8rem; border-radius: 5px;
  background: color-mix(in srgb, var(--warn) 12%, transparent);
  font-size: 0.86rem;
}
.qz-meta { font-size: 0.8rem !important; color: var(--ink-faint) !important;
  margin-top: 0.8rem !important; }
.qz-n { font-family: "IBM Plex Mono", monospace; font-size: 0.68rem;
  color: var(--ink-faint); }
#qz-next { margin-top: 1rem; }

/* ---------- shared symbol typeahead ---------- */
.ac-drop {
  position: absolute; z-index: 200;
  background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: 6px; overflow: hidden; max-height: 320px; overflow-y: auto;
  box-shadow: 0 12px 32px rgba(0,0,0,0.22);
}
.ac-drop[hidden] { display: none; }
.ac-row {
  display: grid; grid-template-columns: 6.2rem 1fr auto; gap: 0.7rem;
  align-items: center; padding: 0.55rem 0.8rem; cursor: pointer;
  border-bottom: 1px solid var(--line);
}
.ac-row:last-child { border-bottom: 0; }
.ac-row:hover, .ac-row.sel { background: var(--surface-2); }
.ac-sym { font-family: "IBM Plex Mono", monospace; font-size: 0.84rem; }
.ac-name {
  color: var(--ink-soft); font-size: 0.85rem;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.ac-mkt {
  font-family: "IBM Plex Mono", monospace; font-size: 0.62rem;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-faint);
  border: 1px solid var(--line); border-radius: 999px; padding: 0.08rem 0.45rem;
  white-space: nowrap;
}
.ac-empty { padding: 0.7rem 0.85rem; font-size: 0.85rem; color: var(--ink-faint); }
.dec-hint {
  display: block; margin-top: 0.3rem; font-size: 0.72rem; color: var(--gold);
  font-family: "IBM Plex Mono", monospace;
}

/* ---------- due badge ---------- */
.due-badge {
  font-family: "IBM Plex Mono", monospace; font-size: 0.64rem;
  letter-spacing: 0.06em; background: var(--gold); color: var(--bg);
  border: 0; border-radius: 999px; padding: 0.2rem 0.6rem;
  cursor: pointer; margin-right: 0.7rem; white-space: nowrap;
}
.due-badge:hover { filter: brightness(1.08); }
.due-badge.hidden { display: none; }
.strip-left { display: flex; align-items: center; gap: 0.7rem; }
.strip-left .btn-ghost { margin-top: 0; }

/* ---------- blind spots ---------- */
.ins { border-left: 3px solid; border-radius: 0 6px 6px 0;
  background: var(--surface); padding: 0.9rem 1.1rem; margin-bottom: 0.9rem; }
.ins.high { border-color: var(--warn); }
.ins.medium { border-color: var(--gold); }
.ins.low { border-color: var(--line-strong); }
.ins-head { font-size: 0.98rem; font-weight: 600; margin-bottom: 0.35rem; }
.ins-detail { font-size: 0.88rem; color: var(--ink-soft); line-height: 1.6; }
.ins-act { margin-top: 0.6rem; }
.ins-sev { font-family: "IBM Plex Mono", monospace; font-size: 0.58rem;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint);
  float: right; }

/* ---------- import ---------- */
.imp-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
  margin-bottom: 1rem; font-size: 0.8rem; }
.imp-cols b { display: block; font-size: 0.7rem; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--ink-faint);
  font-family: "IBM Plex Mono", monospace; margin-bottom: 0.3rem; }
.imp-cols code { font-family: "IBM Plex Mono", monospace; font-size: 0.74rem;
  color: var(--gold); display: block; line-height: 1.6; }
.imp-cols span { color: var(--ink-faint); font-size: 0.75rem; }
.imp-actions { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap;
  margin-bottom: 0.8rem; }
.imp-actions input[type=file] { font-size: 0.78rem; color: var(--ink-soft); max-width: 14rem; }
.imp-row-ok { color: var(--good); }
.imp-row-bad { color: var(--warn); }
#import-result .tbl { margin-top: 0.6rem; }
@media (max-width: 620px) { .imp-cols { grid-template-columns: 1fr; } }

/* ---------- concept search ---------- */
.find-btn {
  display: flex; align-items: center; gap: 0.45rem;
  font: inherit; font-size: 0.8rem; color: var(--ink-soft);
  background: var(--bg); border: 1px solid var(--line-strong);
  border-radius: 999px; padding: 0.28rem 0.7rem; cursor: pointer;
  margin-right: 0.7rem; white-space: nowrap;
}
.find-btn:hover { border-color: var(--gold); color: var(--gold); }
.find-ico { font-size: 0.95rem; line-height: 1; }
.find-kbd {
  font-family: "IBM Plex Mono", monospace; font-size: 0.6rem;
  color: var(--ink-faint); border: 1px solid var(--line);
  border-radius: 3px; padding: 0.02rem 0.28rem;
}
.find-card { width: min(680px, 100%); }
.find-head {
  display: flex; align-items: center; gap: 0.7rem;
  padding: 0.8rem 1rem; border-bottom: 1px solid var(--line);
}
.find-head-ico { color: var(--gold); font-size: 1.05rem; }
#find-input {
  flex: 1; font: inherit; font-size: 1rem; color: var(--ink);
  background: none; border: 0; outline: none; padding: 0.2rem 0;
}
.find-head .btn-ghost { margin-top: 0; flex: 0 0 auto; }
.find-results { max-height: 62vh; overflow-y: auto; }
.fd-row {
  display: grid; grid-template-columns: 1fr auto; gap: 1rem;
  align-items: start; padding: 0.7rem 1rem; cursor: pointer;
  border-bottom: 1px solid var(--line);
}
.fd-row:last-child { border-bottom: 0; }
.fd-row:hover, .fd-row.sel { background: var(--surface-2); }
.fd-main { min-width: 0; }
.fd-title { font-size: 0.95rem; font-weight: 500; margin-right: 0.5rem; }
.fd-snip {
  display: block; margin-top: 0.2rem; font-size: 0.82rem;
  color: var(--ink-soft); line-height: 1.5;
  overflow: hidden; display: -webkit-box;
  -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.fd-meta { text-align: right; flex: 0 0 auto; }
.fd-kind {
  display: block; font-family: "IBM Plex Mono", monospace; font-size: 0.58rem;
  letter-spacing: 0.09em; text-transform: uppercase; color: var(--gold);
}
.fd-where {
  display: block; margin-top: 0.15rem; font-size: 0.68rem;
  color: var(--ink-faint); font-style: italic; white-space: nowrap;
}
.fd-badge {
  font-family: "IBM Plex Mono", monospace; font-size: 0.56rem;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint);
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 0.03rem 0.4rem;
}
.fd-badge.done { color: var(--good); border-color: var(--good); }
.fd-empty { padding: 1.4rem 1.1rem; font-size: 0.88rem; color: var(--ink-faint);
  line-height: 1.7; }
.fd-empty b { color: var(--gold); font-weight: 500; }
@media (max-width: 620px) {
  .find-lbl, .find-kbd { display: none; }
  .find-btn { padding: 0.28rem 0.5rem; }
  .fd-row { grid-template-columns: 1fr; }
  .fd-meta { text-align: left; }
  .fd-where { display: inline; margin-left: 0.5rem; }
}