/* ============================================================
   Project Zoro — shared design system for course pages
   Extends the landing page's trading-terminal language:
   ink navy, panel cards, dashed rules, mono annotations,
   Saira Condensed display over IBM Plex Sans body.
   ============================================================ */

:root {
  --ink: #0D1321;
  --panel: #161E30;
  --panel-2: #1B2438;
  --grid: #232E47;
  --green: #2EBD85;
  --red: #F6465D;
  --blue: #4D9FFF;
  --amber: #F0B90B;
  --text: #E8EDF5;
  --muted: #8A96AD;
  --display: "Saira Condensed", sans-serif;
  --body: "IBM Plex Sans", sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--text);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 20px;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible {
  outline: 1px dashed var(--amber);
  outline-offset: 3px;
}

::selection { background: rgba(240,185,11,0.25); }

/* ---------- shared devices ---------- */

.kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--amber);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
}
.kicker::after {
  content: "";
  flex: 1;
  border-top: 1px dashed var(--grid);
}

.section-title {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(34px, 6vw, 54px);
  line-height: 1.02;
  letter-spacing: 0.01em;
  margin-top: 14px;
}

.dashed-rule {
  border: none;
  border-top: 1px dashed var(--grid);
  margin: 0;
}

/* ---------- top nav ---------- */

.site-nav {
  border-bottom: 1px dashed var(--grid);
  background: rgba(13,19,33,0.92);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand img {
  width: 30px;
  height: 30px;
  object-fit: contain;
  display: block;
}
.brand-name {
  font-family: var(--display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 16px;
  white-space: nowrap;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--amber); }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 12px 22px;
  border: 1px solid var(--amber);
  color: var(--amber);
  background: transparent;
  border-radius: 3px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
  text-decoration: none;
}
.btn:hover { background: var(--amber); color: var(--ink); text-decoration: none; }
.btn-quiet {
  border-color: var(--grid);
  color: var(--muted);
}
.btn-quiet:hover { background: var(--panel-2); color: var(--text); }
.btn[disabled] { opacity: 0.4; pointer-events: none; }

/* ---------- panels ---------- */

.panel {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 4px;
  overflow: hidden;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 18px;
  border-bottom: 1px dashed var(--grid);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
}
.panel-body { padding: 20px 18px; }

/* ============================================================
   Curriculum overview (courses.html)
   ============================================================ */

.course-hero { padding: 64px 0 48px 0; }
.course-hero .lede {
  margin-top: 18px;
  max-width: 58ch;
  color: var(--muted);
  font-size: 17px;
}
.course-hero .lede b { color: var(--text); font-weight: 500; }

.course-stats {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.course-stats b { color: var(--text); font-weight: 500; }
.course-stats .pct { color: var(--amber); }

.resume-cta { margin-top: 28px; display: flex; gap: 14px; flex-wrap: wrap; }

.series-list { padding-bottom: 90px; display: grid; gap: 26px; }

.series-card { background: var(--panel); border: 1px solid var(--grid); border-radius: 4px; }

.series-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px 18px;
  align-items: baseline;
  padding: 20px 20px 16px 20px;
  border-bottom: 1px dashed var(--grid);
}
.series-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}
.series-title {
  font-family: var(--display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 26px;
  letter-spacing: 0.03em;
  line-height: 1.1;
}
.series-progress {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}
.series-progress .done-all { color: var(--green); }
.series-desc {
  grid-column: 2 / -1;
  color: var(--muted);
  font-size: 14px;
  max-width: 64ch;
}
@media (max-width: 620px) {
  .series-head { grid-template-columns: 1fr auto; }
  .series-num { grid-column: 1 / -1; }
  .series-desc { grid-column: 1 / -1; }
}

.lesson-rows { list-style: none; }
.lesson-rows li { border-bottom: 1px solid var(--grid); }
.lesson-rows li:last-child { border-bottom: none; }

.lesson-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 13px 20px;
  color: var(--text);
  transition: background 0.15s ease;
}
.lesson-row:hover { background: rgba(35,46,71,0.45); text-decoration: none; }

.lesson-state {
  font-family: var(--mono);
  font-size: 11px;
  width: 64px;
  flex: none;
  letter-spacing: 0.1em;
  color: var(--grid);
}
.lesson-row[data-done="true"] .lesson-state { color: var(--green); }
.lesson-row[data-done="true"] .lesson-state::before { content: "✓ DONE"; }
.lesson-row[data-done="false"] .lesson-state::before { content: "— · —"; color: var(--muted); opacity: 0.45; }

.lesson-id {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  width: 42px;
  flex: none;
}
.lesson-title { font-size: 15px; font-weight: 500; flex: 1; }
.lesson-tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--blue);
  text-transform: uppercase;
  white-space: nowrap;
}
@media (max-width: 540px) {
  .lesson-tag { display: none; }
  .lesson-state { width: 52px; }
}

/* segmented per-series progress bar (echoes the gate score track) */
.series-track {
  display: grid;
  grid-auto-flow: column;
  gap: 5px;
  height: 8px;
  padding: 14px 20px 18px 20px;
}
.series-track span { background: var(--grid); border-radius: 1px; }
.series-track span.lit { background: var(--green); }

/* ============================================================
   Lesson viewer (lesson.html)
   ============================================================ */

.lesson-shell {
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr);
  gap: 0;
  min-height: calc(100vh - 59px);
}
@media (max-width: 880px) {
  .lesson-shell { grid-template-columns: minmax(0, 1fr); }
}

/* sidebar */
.toc {
  border-right: 1px dashed var(--grid);
  padding: 26px 0 60px 0;
  font-size: 14px;
}
@media (max-width: 880px) {
  .toc {
    display: none;
    border-right: none;
    border-bottom: 1px dashed var(--grid);
  }
  .toc.open { display: block; }
}
.toc-series { margin-bottom: 6px; }
.toc-series-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  background: none;
  border: none;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  cursor: pointer;
  text-align: left;
}
.toc-series-head:hover { color: var(--text); }
.toc-series-head .twist { transition: transform 0.15s ease; font-size: 9px; }
.toc-series.open .twist { transform: rotate(90deg); }
.toc-series-head .t-prog { margin-left: auto; color: var(--grid); }
.toc-series-head .t-prog.some { color: var(--muted); }
.toc-series-head .t-prog.all { color: var(--green); }

.toc-lessons { list-style: none; display: none; }
.toc-series.open .toc-lessons { display: block; }
.toc-lessons a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 6px 18px 6px 30px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.4;
}
.toc-lessons a:hover { color: var(--text); text-decoration: none; }
.toc-lessons a.current {
  color: var(--text);
  border-left: 2px solid var(--amber);
  padding-left: 28px;
  background: rgba(35,46,71,0.35);
}
.toc-lessons .tick { font-family: var(--mono); font-size: 10px; color: var(--green); width: 12px; flex: none; }

.toc-toggle {
  display: none;
  width: 100%;
  padding: 12px 20px;
  background: var(--panel);
  border: none;
  border-bottom: 1px dashed var(--grid);
  color: var(--amber);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  text-align: left;
}
@media (max-width: 880px) { .toc-toggle { display: block; } }

/* content column */
.lesson-main { padding: 44px 0 90px 0; }
.lesson-col {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

.lesson-kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--amber);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
}
.lesson-kicker::after { content: ""; flex: 1; border-top: 1px dashed var(--grid); }

h1.lesson-h1 {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(32px, 5.4vw, 46px);
  line-height: 1.04;
  margin: 12px 0 8px 0;
}
.lesson-summary { color: var(--muted); font-size: 16.5px; max-width: 58ch; }
.lesson-summary b { color: var(--text); font-weight: 500; }

/* content blocks */
.blocks { margin-top: 34px; }
.blocks h2 {
  font-family: var(--display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 24px;
  letter-spacing: 0.03em;
  margin: 38px 0 12px 0;
  display: flex;
  align-items: center;
  gap: 14px;
}
.blocks h2::after { content: ""; flex: 1; border-top: 1px dashed var(--grid); }
.blocks p { margin: 14px 0; }
.blocks p, .blocks li { font-size: 15.5px; color: var(--text); }
.blocks b, .blocks strong { font-weight: 600; }
.blocks em { color: var(--amber); font-style: normal; }
.blocks .soft { color: var(--muted); }
.blocks ul, .blocks ol { margin: 14px 0 14px 22px; }
.blocks li { margin: 7px 0; }
.blocks li::marker { color: var(--amber); font-family: var(--mono); font-size: 13px; }
.blocks code {
  font-family: var(--mono);
  font-size: 13.5px;
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 3px;
  padding: 1px 6px;
  white-space: nowrap;
}

/* definition cards */
.defs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 18px 0;
}
@media (max-width: 600px) { .defs { grid-template-columns: 1fr; } }
.def {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 4px;
  padding: 14px 16px;
}
.def dt {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 6px;
}
.def dd { font-size: 14px; color: var(--muted); }
.def dd b { color: var(--text); font-weight: 500; }

/* callouts */
.callout {
  border: 1px solid var(--grid);
  border-left: 3px solid var(--blue);
  border-radius: 4px;
  background: var(--panel);
  padding: 15px 18px;
  margin: 20px 0;
}
.callout-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 7px;
}
.callout p { margin: 0; font-size: 14.5px; color: var(--text); }
.callout p + p { margin-top: 9px; }
.callout.warn { border-left-color: var(--red); }
.callout.warn .callout-title { color: var(--red); }
.callout.rule { border-left-color: var(--amber); }
.callout.rule .callout-title { color: var(--amber); }
.callout.tip { border-left-color: var(--green); }
.callout.tip .callout-title { color: var(--green); }

/* tables */
.tbl-wrap { overflow-x: auto; margin: 20px 0; border: 1px solid var(--grid); border-radius: 4px; }
table.tbl { width: 100%; border-collapse: collapse; background: var(--panel); font-size: 14px; }
table.tbl th {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px dashed var(--grid);
  white-space: nowrap;
}
table.tbl td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--grid);
  color: var(--text);
  vertical-align: top;
}
table.tbl tr:last-child td { border-bottom: none; }
table.tbl td:first-child { font-weight: 500; white-space: nowrap; }
table.tbl .pos { color: var(--green); }
table.tbl .neg { color: var(--red); }

/* figure (svg diagrams) */
.fig {
  margin: 22px 0;
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 4px;
  overflow: hidden;
}
.fig svg { display: block; width: 100%; height: auto; }
.fig figcaption {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding: 10px 16px;
  border-top: 1px dashed var(--grid);
}

/* ---------- widgets ---------- */

.widget {
  margin: 26px 0;
  background: var(--panel);
  border: 1px solid var(--amber);
  border-radius: 4px;
  overflow: hidden;
}
.widget-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 18px;
  border-bottom: 1px dashed var(--grid);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
}
.widget-head .hint { color: var(--muted); font-size: 10px; letter-spacing: 0.08em; text-transform: none; }
.widget-body { padding: 20px 18px; }

.w-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .w-grid { grid-template-columns: 1fr; } }

.w-field { display: flex; flex-direction: column; gap: 6px; }
.w-field label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.w-field input[type="number"], .w-field select {
  background: var(--ink);
  border: 1px solid var(--grid);
  border-radius: 3px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 15px;
  padding: 9px 12px;
  width: 100%;
}
.w-field input:focus, .w-field select:focus {
  outline: none;
  border-color: var(--amber);
}
.w-field input[type="range"] { accent-color: var(--amber); width: 100%; }
.w-field .range-val { font-family: var(--mono); font-size: 13px; color: var(--text); }

.w-readout {
  margin-top: 18px;
  border-top: 1px dashed var(--grid);
  padding-top: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
}
.w-stat .k {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.w-stat .v {
  font-family: var(--mono);
  font-size: 19px;
  color: var(--text);
}
.w-stat .v.good { color: var(--green); }
.w-stat .v.bad { color: var(--red); }
.w-stat .v.accent { color: var(--amber); }
.w-stat .sub { font-family: var(--mono); font-size: 11px; color: var(--muted); margin-top: 2px; }

.w-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--muted);
}

/* session clock */
.sess-rows { display: grid; gap: 10px; }
.sess-row { display: grid; grid-template-columns: 92px 1fr; gap: 12px; align-items: center; }
.sess-row .nm { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; color: var(--muted); }
.sess-row .nm.on { color: var(--text); }
.sess-bar { position: relative; height: 16px; background: var(--ink); border: 1px solid var(--grid); border-radius: 2px; }
.sess-bar .span { position: absolute; top: 0; bottom: 0; background: rgba(77,159,255,0.3); border-left: 1px solid var(--blue); border-right: 1px solid var(--blue); }
.sess-bar .span.live { background: rgba(46,189,133,0.35); border-color: var(--green); }
.sess-now { position: absolute; top: -6px; bottom: -6px; border-left: 1px dashed var(--amber); z-index: 2; }

/* candle trainer */
.ct-stage { display: flex; justify-content: center; padding: 8px 0 4px 0; }
.ct-stage svg { max-width: 320px; width: 100%; height: auto; }
.ct-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
@media (max-width: 540px) { .ct-opts { grid-template-columns: 1fr; } }
.ct-opt {
  background: var(--ink);
  border: 1px solid var(--grid);
  border-radius: 3px;
  color: var(--text);
  font-family: var(--body);
  font-size: 14px;
  padding: 11px 14px;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.12s ease, background 0.12s ease;
}
.ct-opt:hover { border-color: var(--muted); }
.ct-opt.right { border-color: var(--green); color: var(--green); }
.ct-opt.wrong { border-color: var(--red); color: var(--red); }
.ct-opt[disabled] { cursor: default; }
.ct-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}
.ct-meta .why { font-size: 12.5px; font-family: var(--body); color: var(--muted); flex: 1; margin-right: 14px; }
.ct-meta .why b { color: var(--text); }

/* ---------- quiz (the lesson gate) ---------- */

.quiz { margin-top: 48px; border: 1px solid var(--grid); border-radius: 4px; background: var(--panel); overflow: hidden; }
.quiz-head {
  padding: 16px 20px;
  border-bottom: 1px dashed var(--grid);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.quiz-head .qh-title {
  font-family: var(--display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 22px;
  letter-spacing: 0.04em;
}
.quiz-head .qh-req { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; color: var(--amber); }

.q-item { padding: 20px; border-bottom: 1px solid var(--grid); }
.q-item:last-of-type { border-bottom: none; }
.q-num { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; color: var(--muted); margin-bottom: 6px; }
.q-text { font-size: 15.5px; font-weight: 500; margin-bottom: 12px; }
.q-opts { display: grid; gap: 8px; }
.q-opt {
  display: flex;
  gap: 12px;
  align-items: baseline;
  background: var(--ink);
  border: 1px solid var(--grid);
  border-radius: 3px;
  color: var(--text);
  font-family: var(--body);
  font-size: 14.5px;
  padding: 10px 14px;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.12s ease;
}
.q-opt:hover { border-color: var(--muted); }
.q-opt .q-letter { font-family: var(--mono); font-size: 11px; color: var(--muted); flex: none; }
.q-opt.sel { border-color: var(--blue); }
.q-opt.right { border-color: var(--green); background: rgba(46,189,133,0.08); }
.q-opt.wrong { border-color: var(--red); background: rgba(246,70,93,0.07); }
.q-opt[disabled] { cursor: default; }
.q-why {
  display: none;
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--muted);
  border-left: 2px solid var(--grid);
  padding-left: 12px;
}
.q-why.show { display: block; }
.q-why b { color: var(--text); }

.quiz-foot {
  padding: 18px 20px 22px 20px;
  border-top: 1px dashed var(--grid);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.quiz-score { font-family: var(--mono); font-size: 13px; color: var(--muted); letter-spacing: 0.06em; }
.quiz-score em { font-style: normal; color: var(--amber); font-weight: 500; }
.quiz-verdict { font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; }
.quiz-verdict.pass { color: var(--green); }
.quiz-verdict.fail { color: var(--red); }

/* lesson prev/next */
.lesson-nav {
  margin-top: 36px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
}
.lesson-nav a, .lesson-nav span.ghost {
  flex: 1;
  border: 1px solid var(--grid);
  border-radius: 4px;
  padding: 14px 16px;
  color: var(--text);
  background: var(--panel);
  transition: border-color 0.15s ease;
  max-width: 48%;
}
.lesson-nav a:hover { border-color: var(--amber); text-decoration: none; }
.lesson-nav .dir {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}
.lesson-nav .ttl { font-size: 14px; font-weight: 500; }
.lesson-nav .next { text-align: right; margin-left: auto; }
.lesson-nav span.ghost { opacity: 0.35; }

/* completion banner */
.complete-flag {
  display: none;
  margin-top: 22px;
  border: 1px solid var(--green);
  border-radius: 4px;
  background: rgba(46,189,133,0.07);
  padding: 14px 18px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--green);
}
.complete-flag.show { display: block; }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px dashed var(--grid);
  padding: 36px 0 46px 0;
  margin-top: 0;
}
.site-footer .wrap { display: grid; gap: 18px; }
.foot-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.foot-row a { color: var(--muted); }
.foot-row a:hover { color: var(--text); }
.foot-disclaimer {
  font-size: 12px;
  color: var(--muted);
  opacity: 0.8;
  max-width: 88ch;
  line-height: 1.55;
}

/* ============================================================
   Blog
   ============================================================ */

.blog-hero { padding: 64px 0 48px 0; }
.blog-hero .lede { margin-top: 18px; max-width: 58ch; color: var(--muted); font-size: 17px; }
.blog-hero .lede b { color: var(--text); font-weight: 500; }

.blog-filter {
  display: flex;
  gap: 9px;
  flex-wrap: wrap;
  margin-top: 32px;
  padding-bottom: 2px;
}
.blog-tag-btn {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--grid);
  border-radius: 2px;
  color: var(--muted);
  padding: 5px 12px;
  cursor: pointer;
  transition: border-color 0.12s ease, color 0.12s ease;
}
.blog-tag-btn:hover { border-color: var(--muted); color: var(--text); }
.blog-tag-btn.active { border-color: var(--amber); color: var(--amber); }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 18px;
  margin-top: 32px;
  padding-bottom: 90px;
}

.blog-card {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 4px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.blog-card:hover { border-color: var(--muted); background: var(--panel-2); text-decoration: none; }
.blog-card[data-pinned="true"] { border-color: var(--amber); grid-column: 1 / -1; flex-direction: row; gap: 28px; align-items: flex-start; }
@media (max-width: 640px) { .blog-card[data-pinned="true"] { flex-direction: column; } }

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
  flex-wrap: wrap;
}
.blog-card-meta .pin-badge {
  color: var(--amber);
  border: 1px solid var(--amber);
  border-radius: 2px;
  padding: 1px 6px;
}
.blog-card-body { flex: 1; display: flex; flex-direction: column; gap: 9px; }
.blog-card-title {
  font-family: var(--display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 22px;
  letter-spacing: 0.02em;
  line-height: 1.1;
  color: var(--text);
}
.blog-card[data-pinned="true"] .blog-card-title { font-size: clamp(22px, 3.2vw, 32px); }
.blog-card-dek { font-size: 14px; color: var(--muted); line-height: 1.55; }
.blog-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.blog-tag-list { display: flex; gap: 7px; flex-wrap: wrap; }
.blog-tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--grid);
  border-radius: 2px;
  padding: 2px 7px;
  color: var(--muted);
}
.blog-read-time { font-family: var(--mono); font-size: 10.5px; color: var(--muted); letter-spacing: 0.06em; white-space: nowrap; }

/* Post pages */
.post-hero {
  padding: 56px 0 40px 0;
  border-bottom: 1px dashed var(--grid);
}
.post-hero .post-kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
  display: flex;
  align-items: center;
  gap: 14px;
}
.post-hero .post-kicker::after { content: ""; flex: 1; border-top: 1px dashed var(--grid); }
.post-hero h1 {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(32px, 5.5vw, 52px);
  line-height: 1.03;
  letter-spacing: 0.01em;
  margin-top: 12px;
}
.post-hero .post-dek { margin-top: 16px; max-width: 58ch; color: var(--muted); font-size: 17px; line-height: 1.55; }
.post-hero .post-dek b { color: var(--text); font-weight: 500; }
.post-hero .post-byline {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.post-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 44px 24px 36px 24px;
}
.post-cta {
  margin-top: 52px;
  background: var(--panel);
  border: 1px solid var(--amber);
  border-radius: 4px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.post-cta .cta-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
}
.post-cta h3 {
  font-family: var(--display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 24px;
  letter-spacing: 0.03em;
}
.post-cta p { font-size: 14.5px; color: var(--muted); }
.post-cta p b { color: var(--text); font-weight: 500; }
.post-cta-links { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 6px; }
.related-lessons {
  margin-top: 44px;
  border-top: 1px dashed var(--grid);
  padding-top: 32px;
}
.related-lessons .rl-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.related-list { display: flex; flex-direction: column; gap: 10px; }
.related-item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 18px;
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 4px;
  color: var(--text);
  font-size: 15px;
  transition: border-color 0.15s ease;
}
.related-item:hover { border-color: var(--amber); text-decoration: none; }
.related-item .ri-id {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber);
  flex: none;
}
.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 36px;
  padding-top: 32px;
  border-top: 1px dashed var(--grid);
}
.post-nav a {
  flex: 1;
  border: 1px solid var(--grid);
  border-radius: 4px;
  padding: 14px 16px;
  color: var(--text);
  background: var(--panel);
  transition: border-color 0.15s ease;
  max-width: 48%;
}
.post-nav a:hover { border-color: var(--amber); text-decoration: none; }
.post-nav .dir { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; color: var(--muted); text-transform: uppercase; display: block; margin-bottom: 4px; }
.post-nav .ttl { font-size: 14px; font-weight: 500; }
.post-nav .next { text-align: right; margin-left: auto; }

/* ============================================================
   Blog hero images, image cards & reading motion
   ------------------------------------------------------------
   Animation is gated behind the `.pz-anim` class that post.js
   adds to <html>. With JS off (or reduced-motion) nothing is
   hidden or moved — content is always readable for crawlers.
   ============================================================ */

/* reading-progress bar (post.js sets --pz-progress 0→1) */
.reading-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 100%;
  transform: scaleX(var(--pz-progress, 0));
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--amber), #ffd24a);
  box-shadow: 0 0 10px rgba(240, 185, 11, 0.6);
  z-index: 60;
  pointer-events: none;
  will-change: transform;
}

/* post hero image — framed banner above the kicker */
.post-hero-img {
  position: relative;
  width: 100%;
  height: clamp(190px, 34vw, 380px);
  margin-bottom: 26px;
  border: 1px solid var(--grid);
  border-radius: 5px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02), 0 18px 50px -28px rgba(0, 0, 0, 0.8);
}
.post-hero-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13, 19, 33, 0) 55%, rgba(13, 19, 33, 0.55) 100%);
  pointer-events: none;
}
.post-hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.pz-anim .post-hero-img img {
  will-change: transform;
  animation: pz-kenburns 20s ease-out forwards;
}
@keyframes pz-kenburns {
  from { transform: scale(1.0); }
  to   { transform: scale(1.06); }
}

/* blog index card with a top image (markup: img + .blog-card-main) */
.blog-card { padding: 0; overflow: hidden; }
.blog-card-main {
  flex: 1;
  min-width: 0;
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.blog-card-img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--ink);
  border-bottom: 1px solid var(--grid);
}
.blog-card[data-pinned="true"] { gap: 0; align-items: stretch; }
.blog-card[data-pinned="true"] .blog-card-img {
  width: 44%;
  aspect-ratio: auto;
  align-self: stretch;
  border-bottom: none;
  border-right: 1px solid var(--grid);
}
.blog-card[data-pinned="true"] .blog-card-main { padding: 26px 28px; justify-content: center; }
@media (max-width: 640px) {
  .blog-card[data-pinned="true"] { flex-direction: column; }
  .blog-card[data-pinned="true"] .blog-card-img {
    width: 100%; aspect-ratio: 16 / 9;
    border-right: none; border-bottom: 1px solid var(--grid);
  }
}

/* scroll-reveal for post + card content (only active under .pz-anim) */
.pz-anim .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s cubic-bezier(0.22, 0.61, 0.36, 1),
              transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.pz-anim .reveal.is-visible { opacity: 1; transform: none; }

/* ============================================================
   Auth + account (auth.html, account.html) + course gating
   ============================================================ */

/* nav auth state (site-nav) */
.nav-links .nav-account,
.nav-links .nav-signin {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}
.nav-links .nav-account:hover,
.nav-links .nav-signin:hover { color: var(--text); text-decoration: none; }
.nav-avatar {
  width: 24px; height: 24px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--grid);
  background: var(--panel);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--amber); font-size: 11px; flex: none;
}
.nav-avatar-fallback { font-family: var(--mono); }

/* text/email inputs reuse the widget field look */
.w-field input[type="text"],
.w-field input[type="email"],
.auth-form input[type="email"] {
  background: var(--ink);
  border: 1px solid var(--grid);
  border-radius: 3px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 15px;
  padding: 10px 12px;
  width: 100%;
}
.w-field input[type="text"]:focus,
.w-field input[type="email"]:focus,
.auth-form input[type="email"]:focus { outline: none; border-color: var(--amber); }

/* shared status line */
.auth-msg {
  margin-top: 14px; min-height: 1em;
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.02em;
  color: var(--muted);
}
.auth-msg.good { color: var(--green); }
.auth-msg.bad { color: var(--red); }

/* ---- auth.html ---- */
.auth-wrap {
  min-height: calc(100vh - 59px);
  display: flex; align-items: center; justify-content: center;
  padding: 48px 20px 64px;
}
.auth-card { width: 100%; max-width: 440px; }
.auth-head { padding: 26px 26px 4px; }
.auth-title {
  font-family: var(--display); font-weight: 800; text-transform: uppercase;
  font-size: clamp(30px, 7vw, 40px); line-height: 1.02; margin-top: 12px;
}
.auth-lede { margin-top: 14px; color: var(--muted); font-size: 14.5px; }
.auth-lede b { color: var(--text); font-weight: 500; }

.auth-google {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  width: calc(100% - 52px);
  margin: 22px 26px 0;
  padding: 12px 16px;
  background: #fff; color: #1f1f1f;
  border: none; border-radius: 3px;
  font-family: var(--body); font-size: 15px; font-weight: 500;
  cursor: pointer; transition: filter 0.15s ease;
}
.auth-google:hover { filter: brightness(0.94); }
.auth-google[disabled] { opacity: 0.5; pointer-events: none; }

.auth-or {
  display: flex; align-items: center; gap: 12px;
  margin: 22px 26px 0; color: var(--muted);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
}
.auth-or::before, .auth-or::after { content: ""; flex: 1; border-top: 1px dashed var(--grid); }

.auth-form { padding: 18px 26px 0; display: grid; gap: 10px; }
.auth-form label {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted);
}
.auth-form .btn { width: 100%; justify-content: center; margin-top: 4px; }
.auth-card .auth-msg { padding: 0 26px; }
.auth-fine { padding: 16px 26px 26px; font-size: 12px; color: var(--muted); opacity: 0.8; line-height: 1.5; }

/* ---- account.html ---- */
.account-main { padding-bottom: 90px; }
.account-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 18px; padding: 48px 0 28px; flex-wrap: wrap;
}
.account-sub { color: var(--muted); font-family: var(--mono); font-size: 13px; margin-top: 8px; }
.account-grid {
  margin-top: 34px;
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 22px; align-items: start;
}
@media (max-width: 820px) { .account-grid { grid-template-columns: 1fr; } }
#progPct { color: var(--amber); }

.account-overall { margin-bottom: 18px; }
.account-overall-bar {
  height: 10px; background: var(--ink); border: 1px solid var(--grid);
  border-radius: 999px; overflow: hidden;
}
.account-overall-bar span { display: block; height: 100%; width: 0; background: var(--green); transition: width 0.5s ease; }
.account-overall-line { margin-top: 12px; color: var(--muted); font-size: 14px; }
.account-overall-line b { color: var(--text); font-weight: 600; }

.account-grid .btn { width: 100%; justify-content: center; }
.account-series { margin-top: 22px; display: grid; gap: 12px; }
.acc-series { display: block; padding: 12px 14px; background: var(--ink); border: 1px solid var(--grid); border-radius: 4px; }
.acc-series:hover { border-color: var(--muted); text-decoration: none; }
.acc-series-top { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.acc-series-name { font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; color: var(--text); }
.acc-series-count { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.acc-series-count.all { color: var(--green); }
.acc-series-track { display: grid; grid-auto-flow: column; gap: 4px; height: 6px; margin-top: 10px; }
.acc-series-track span { background: var(--grid); border-radius: 1px; }
.acc-series-track span.lit { background: var(--green); }

/* profile */
.profile-avatar-row { display: flex; align-items: center; gap: 18px; margin-bottom: 22px; }
.profile-avatar {
  width: 72px; height: 72px; border-radius: 50%; overflow: hidden; flex: none;
  border: 1px solid var(--grid); background: var(--ink);
  display: inline-flex; align-items: center; justify-content: center;
}
.profile-avatar img { width: 100%; height: 100%; object-fit: cover; }
.profile-avatar-fallback { font-family: var(--display); font-size: 30px; color: var(--amber); }
.profile-avatar-actions { display: grid; gap: 8px; }
.profile-avatar-actions .btn { width: auto; }
.profile-avatar-hint { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.profile-form { display: grid; gap: 16px; }
.profile-form .btn { width: 100%; justify-content: center; margin-top: 2px; }

/* ---- course gating cues ---- */
.toc-lessons a.locked { opacity: 0.72; }
.lesson-row[data-locked="true"] .lesson-state::before { content: "🔒"; color: var(--muted); letter-spacing: 0; }
.lesson-row[data-locked="true"] .lesson-title { color: var(--muted); }

.course-banner {
  margin-top: 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px 20px; flex-wrap: wrap;
  padding: 14px 18px;
  border: 1px dashed var(--amber);
  border-radius: 4px;
  background: rgba(240,185,11,0.06);
  font-size: 14px;
}
.course-banner b { color: var(--text); font-weight: 600; }
.course-banner a {
  color: var(--amber); font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.08em; white-space: nowrap;
}

/* lesson sign-in wall */
.lesson-wall {
  margin-top: 30px;
  border: 1px solid var(--grid); border-radius: 4px;
  background: var(--panel); padding: 32px 28px;
}
.lesson-wall .wall-eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--amber);
}
.lesson-wall h2 {
  font-family: var(--display); font-weight: 700; text-transform: uppercase;
  font-size: 26px; letter-spacing: 0.02em; margin: 10px 0 12px;
}
.lesson-wall p { color: var(--muted); font-size: 15px; max-width: 52ch; }
.lesson-wall .btn { margin-top: 20px; }
.lesson-wall .wall-fine { margin-top: 14px; font-size: 12.5px; opacity: 0.8; }

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
  /* never leave reveal content stuck invisible when motion is off */
  .pz-anim .reveal { opacity: 1 !important; transform: none !important; }
  .post-hero-img img { transform: none !important; }
  .reading-progress { display: none !important; }
}