/* ---------------------------------------------------------- */
/* Theme tokens                                                 */
/* ---------------------------------------------------------- */
:root {
  --bg: #0c0d10;
  --bg-2: #14161b;
  --bg-3: #1c1f26;
  --fg: #e8e6e1;
  --fg-dim: #9aa0a8;
  --fg-mute: #6b7079;
  --accent: #d99a3a;
  --accent-fg: #1a1207;
  --accent-soft: #d99a3a22;
  --border: #2a2e36;
  --danger: #d97070;
  --good: #6fbf73;
  --radius: 10px;
  --shadow: 0 1px 0 #ffffff05 inset, 0 8px 24px #0007;
  --tap: 44px;
  --maxw: 880px;
  font-synthesis: none;
}
html[data-theme="light"] {
  --bg: #f7f5f0;
  --bg-2: #ffffff;
  --bg-3: #ecead8;
  --fg: #1a1d22;
  --fg-dim: #4d5158;
  --fg-mute: #7a7e85;
  --accent: #b8741a;
  --accent-fg: #fff;
  --accent-soft: #b8741a18;
  --border: #d8d4c4;
  --shadow: 0 1px 0 #ffffffaa inset, 0 8px 24px #00000010;
}

/* ---------------------------------------------------------- */
/* Reset / base                                                 */
/* ---------------------------------------------------------- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 0.5em 0; }
h1 { font-size: clamp(1.5rem, 4vw, 2rem); }
h2 { font-size: 1.25rem; color: var(--fg); }
h3 { font-size: 1.05rem; color: var(--fg-dim); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
li { margin: 0.25em 0; }
hr { border: 0; border-top: 1px solid var(--border); margin: 1.5em 0; }
code, kbd { font: 0.9em/1 ui-monospace, "SF Mono", Menlo, Consolas, monospace; }

/* ---------------------------------------------------------- */
/* Top bar / footer                                             */
/* ---------------------------------------------------------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(6px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: 0.01em;
}
.brand:hover { text-decoration: none; color: var(--accent); }
.dial {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-fg);
  border-radius: 4px;
  padding: 0 0.4rem;
  font: 600 0.95rem/1.5 ui-monospace, monospace;
}
.topnav { display: flex; gap: 0.25rem; align-items: center; }
.iconbtn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.iconbtn:hover { background: var(--bg-3); }

main {
  flex: 1;
  padding: 1.25rem 1rem 3rem;
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 1rem;
  font-size: 0.8rem;
  color: var(--fg-mute);
  text-align: center;
  background: var(--bg-2);
}
.footer p { margin: 0; max-width: var(--maxw); margin-inline: auto; }

.loading { color: var(--fg-mute); padding: 2rem 0; text-align: center; }

/* ---------------------------------------------------------- */
/* Generic blocks                                               */
/* ---------------------------------------------------------- */
.crumbs { color: var(--fg-mute); font-size: 0.85rem; margin-bottom: 0.5rem; }
.crumbs a { color: var(--fg-dim); }
.crumbs .sep { margin: 0 0.4em; color: var(--fg-mute); }

.subtitle { color: var(--fg-dim); margin-top: -0.25rem; margin-bottom: 1.25rem; font-size: 1rem; }

.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  display: block;
  color: inherit;
  box-shadow: var(--shadow);
  transition: border-color 0.15s, transform 0.15s;
}
a.card:hover {
  text-decoration: none;
  border-color: var(--accent);
  transform: translateY(-1px);
}
.card h2 { margin-bottom: 0.25rem; }
.card .meta { color: var(--fg-mute); font-size: 0.85rem; margin-bottom: 0.5rem; }
.card p { color: var(--fg-dim); margin: 0; }
.card .progress { margin-top: 0.6rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.section { margin: 1.5rem 0; }
.section h3 { margin-bottom: 0.5rem; }

.callout {
  background: var(--bg-3);
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--fg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--accent-fg);
  border: 0;
  padding: 0.6em 1em;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  min-height: var(--tap);
}
.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
}
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn:hover { text-decoration: none; }

.button-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.tag {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.05rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}
.tag.muted { background: var(--bg-3); color: var(--fg-mute); border-color: var(--border); }

/* Lesson card progress bar */
.bar {
  height: 4px;
  background: var(--bg-3);
  border-radius: 2px;
  overflow: hidden;
}
.bar > span {
  display: block;
  height: 100%;
  background: var(--accent);
  width: 0;
  transition: width 0.3s;
}
.progress-label {
  font-size: 0.75rem;
  color: var(--fg-mute);
  margin-top: 0.25rem;
}

/* ---------------------------------------------------------- */
/* Lesson page                                                  */
/* ---------------------------------------------------------- */
.lesson-head { display: flex; gap: 1rem; align-items: baseline; flex-wrap: wrap; margin-bottom: 0.5rem; }
.lesson-head h1 { margin: 0; }
.lesson-nav { display: flex; gap: 0.5rem; margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.lesson-nav .btn { flex: 1; }

.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { margin: 0; }
.checklist label {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  cursor: pointer;
  min-height: var(--tap);
  border: 1px solid transparent;
}
.checklist label:hover { background: var(--bg-3); }
.checklist input[type="checkbox"] {
  margin-top: 0.25rem;
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--accent);
  flex-shrink: 0;
}
.checklist input:checked + .text {
  text-decoration: line-through;
  color: var(--fg-mute);
}
.checklist .text { flex: 1; }

.exercise-group { margin-bottom: 1.25rem; }
.exercise-group .group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}
.exercise-group h3 { margin: 0; }

.ex-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.4rem; }
.ex-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.4rem;
  align-items: stretch;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.4rem 0.5rem 0.4rem 0.85rem;
}
.ex-row .name {
  display: flex;
  align-items: center;
  font-weight: 500;
  color: var(--fg);
  min-height: var(--tap);
}
.ex-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--bg-3);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0 0.7rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  min-height: var(--tap);
  min-width: 64px;
  justify-content: center;
}
.ex-link:hover { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); text-decoration: none; }
.ex-link[data-empty] {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}
.ex-link .label { font-family: ui-monospace, monospace; }

/* Exercise filter chips */
.filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.5rem 0 1rem;
  position: sticky;
  top: 56px;
  background: var(--bg);
  padding: 0.5rem 0;
  z-index: 5;
}
.chip {
  background: var(--bg-3);
  color: var(--fg-dim);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  cursor: pointer;
  user-select: none;
}
.chip[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}

/* Self-assessment */
.assess-question {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.75rem;
}
.assess-question h3 { margin-bottom: 0.5rem; }
.assess-row { display: grid; grid-template-columns: 1fr; gap: 0.6rem; margin-top: 0.5rem; }
@media (min-width: 640px) {
  .assess-row { grid-template-columns: 1fr 1fr; }
}
.assess-cell { padding: 0.7rem; border-radius: 8px; }
.assess-cell.thinking { background: #4a210011; border: 1px solid #c2624a55; }
.assess-cell.flowing { background: #1f3a1f11; border: 1px solid #6fbf7355; }
.assess-cell .ttl { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; margin-bottom: 0.25rem; opacity: 0.85; }
.assess-cell.thinking .ttl { color: #d99080; }
.assess-cell.flowing .ttl { color: #8fcf95; }

/* Empty / not-found */
.empty {
  text-align: center;
  color: var(--fg-mute);
  padding: 2rem 0;
}

/* CWA day blocks */
.day-block {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
  transition: opacity 0.2s, border-color 0.2s;
}
.day-block.done {
  opacity: 0.55;
  border-color: var(--good);
}
.day-block.done .day-head h2::after {
  content: " ✓";
  color: var(--good);
}
.day-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}
.day-head h2 { margin: 0; font-size: 1.1rem; color: var(--accent); }
.day-done {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--fg-dim);
  cursor: pointer;
  user-select: none;
}
.day-done input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  accent-color: var(--good);
}

/* Rich-text body imported from the source HTML */
.rich p { margin: 0 0 0.6em; }
.rich p:last-child { margin-bottom: 0; }
.rich a { color: var(--accent); }
.rich a.audio {
  display: inline-block;
  padding: 0.05rem 0.45rem;
  border-radius: 4px;
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  font-family: ui-monospace, monospace;
  font-size: 0.92em;
  font-weight: 600;
  text-decoration: none;
  color: var(--accent);
  margin: 0 0.05em;
}
.rich a.audio:hover {
  background: var(--accent);
  color: var(--accent-fg);
  text-decoration: none;
}
.rich ul, .rich ol { padding-left: 1.25em; }

/* Quick links strip under each day */
.tool-wrap {
  margin-top: 0.75rem;
  border-top: 1px dashed var(--border);
  padding-top: 0.5rem;
}
.tool-wrap > summary {
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--fg-dim);
  list-style: none;
  user-select: none;
  padding: 0.25rem 0;
}
.tool-wrap > summary::before {
  content: "▸ ";
  color: var(--fg-mute);
  display: inline-block;
  width: 1em;
  transition: transform 0.15s;
}
.tool-wrap[open] > summary::before { content: "▾ "; }
.tool-strip {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.tool-strip li { margin: 0; }
.tool-chip {
  display: inline-block;
  background: var(--bg-3);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  font-size: 0.82rem;
  text-decoration: none;
  font-weight: 500;
}
.tool-chip:hover { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); text-decoration: none; }
.tool-chip.audio {
  font-family: ui-monospace, monospace;
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}
.tool-chip.audio:hover { background: var(--accent); color: var(--accent-fg); }

/* Print */
@media print {
  .topbar, .footer, .filterbar, .lesson-nav, .iconbtn { display: none !important; }
  body { background: white; color: black; }
  .card, .ex-row, .assess-question, .callout { box-shadow: none; border-color: #aaa; background: white; }
  a { color: black; text-decoration: underline; }
}