/* Layout concept: subject pills across top, year cards stacked below with term rows,
   topic chips open an inline detail panel. Mobile-first, phone-friendly. */
:root {
  --paper: #FBF8F2;
  --paper-raised: #F3EFE5;
  --ink: #1A2130;
  --ink-dim: #5A6478;
  --rule: #E4DCC9;
  --rule-strong: #C8BDA3;
  --teal: #1E7A66;
  --teal-soft: #D4E8E1;
  --amber: #D9A574;
  --amber-soft: #F5E6CF;
  --coral: #C25A4A;
  --focus: #2563EB;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0F1419;
    --paper-raised: #171E27;
    --ink: #E8DFC9;
    --ink-dim: #8A94A6;
    --rule: #2A313D;
    --rule-strong: #3F4756;
    --teal: #4BB89E;
    --teal-soft: #1E3B33;
    --amber: #E8B87D;
    --amber-soft: #3B2E1C;
    --coral: #E07A68;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0F1419;
  --paper-raised: #171E27;
  --ink: #E8DFC9;
  --ink-dim: #8A94A6;
  --rule: #2A313D;
  --rule-strong: #3F4756;
  --teal: #4BB89E;
  --teal-soft: #1E3B33;
  --amber: #E8B87D;
  --amber-soft: #3B2E1C;
  --coral: #E07A68;
  color-scheme: dark;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter Tight', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding: 0 16px;
  padding-block: 24px 48px;
  max-width: 920px;
  margin-inline: auto;
}

/* Header */
header {
  margin-bottom: 24px;
}
.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 8px;
}
h1 {
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: 'opsz' 72;
  font-weight: 500;
  font-size: clamp(32px, 7vw, 46px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  text-wrap: balance;
}
.subhead {
  color: var(--ink-dim);
  font-size: 15px;
  max-width: 56ch;
}

/* Theme toggle */
.theme-toggle {
  position: absolute;
  top: 16px;
  right: 16px;
  background: transparent;
  border: 1px solid var(--rule-strong);
  color: var(--ink);
  padding: 6px 10px;
  border-radius: 999px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}
.theme-toggle:hover { background: var(--paper-raised); }

/* View toggle (All years / Y9 only) */
.view-toggle {
  display: inline-flex;
  gap: 4px;
  margin-top: 12px;
  padding: 3px;
  background: var(--paper-raised);
  border-radius: 999px;
  border: 1px solid var(--rule);
}
.view-btn {
  background: transparent;
  border: 0;
  color: var(--ink-dim);
  padding: 6px 14px;
  border-radius: 999px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}
.view-btn[aria-pressed="true"] {
  background: var(--teal);
  color: #fff;
}

/* Subject tabs */
.subjects {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 0 12px;
  margin: 0 -4px 24px;
  padding-left: 4px;
  scrollbar-width: thin;
  border-bottom: 1px solid var(--rule);
}
.subjects::-webkit-scrollbar { height: 4px; }
.subjects::-webkit-scrollbar-thumb { background: var(--rule-strong); border-radius: 2px; }
.subject-pill {
  flex-shrink: 0;
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-dim);
  padding: 8px 14px;
  border-radius: 999px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: color 120ms, border-color 120ms, background 120ms;
}
.subject-pill:hover { color: var(--ink); border-color: var(--rule-strong); }
.subject-pill[aria-selected="true"] {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* Subject meta header */
.subject-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  padding: 20px 0;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--rule);
}
.meta-item {
  min-width: 0;
}
.meta-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 2px;
}
.meta-value {
  font-size: 14px;
  font-weight: 500;
}
.meta-value a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}
.meta-value a:hover { color: var(--ink); }

/* Progress strip */
.progress-strip {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.progress-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.progress-num {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 500;
  font-size: 22px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.progress-num.done { color: var(--teal); }
.progress-num.learning { color: var(--amber); }
.progress-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.progress-divider {
  width: 1px;
  height: 28px;
  background: var(--rule);
}
.progress-bar {
  flex: 1;
  min-width: 140px;
  height: 6px;
  background: var(--rule);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}
.progress-bar-fill {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  background: var(--teal);
  transition: width 300ms;
}

/* Year cards */
.years {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.year {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 16px;
  overflow: hidden;
}
.year-head {
  padding: 16px 20px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  border-bottom: 1px solid var(--rule);
  flex-wrap: wrap;
}
.year-name {
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: 'opsz' 72;
  font-weight: 500;
  font-size: 24px;
  line-height: 1;
}
.year-caption {
  font-size: 13px;
  color: var(--ink-dim);
  min-width: 0;
}
.year.current { border-color: var(--amber); }
.year.current .year-head {
  background: var(--amber-soft);
  border-bottom-color: var(--amber);
}
.year-badge {
  margin-left: auto;
  background: var(--amber);
  color: var(--ink);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 999px;
  font-weight: 500;
}
.year[data-theme-override] .year-badge { color: #fff; }

.terms {
  padding: 16px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.term {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 16px;
  align-items: start;
}
.term-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding-top: 6px;
  min-width: 0;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
}
.chip {
  background: transparent;
  border: 1px solid var(--rule-strong);
  color: var(--ink);
  padding: 6px 11px;
  border-radius: 999px;
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 120ms;
  text-align: left;
  line-height: 1.3;
}
.chip:hover { border-color: var(--ink); }
.chip[data-status="done"] {
  background: var(--teal-soft);
  border-color: var(--teal);
  color: var(--teal);
  font-weight: 500;
}
.chip[data-status="learning"] {
  background: var(--amber-soft);
  border-color: var(--amber);
  color: var(--ink);
  font-weight: 500;
}
.chip-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid var(--ink-dim);
  flex-shrink: 0;
}
.chip[data-status="done"] .chip-dot {
  background: var(--teal);
  border-color: var(--teal);
}
.chip[data-status="learning"] .chip-dot {
  background: var(--amber);
  border-color: var(--amber);
}
.chip:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

/* Detail panel */
.detail {
  margin-top: 32px;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 16px;
  padding: 24px;
}
.detail[hidden] { display: none !important; }
.detail-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 6px;
}
.detail h2 {
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: 'opsz' 72;
  font-weight: 500;
  font-size: 24px;
  line-height: 1.15;
  margin: 0 0 10px;
  text-wrap: balance;
}
.detail-blurb {
  color: var(--ink-dim);
  font-size: 15px;
  margin-bottom: 20px;
  max-width: 60ch;
}
.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.status-btn {
  background: transparent;
  border: 1px solid var(--rule-strong);
  color: var(--ink);
  padding: 7px 12px;
  border-radius: 999px;
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all 120ms;
}
.status-btn:hover { border-color: var(--ink); }
.status-btn[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.detail-resources {
  border-top: 1px solid var(--rule);
  padding-top: 16px;
}
.resource-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 8px;
}
.resource-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.resource-list a {
  color: var(--teal);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid transparent;
}
.resource-list a:hover { border-bottom-color: var(--teal); }
.detail-close {
  background: transparent;
  border: none;
  color: var(--ink-dim);
  cursor: pointer;
  font-size: 20px;
  padding: 0;
  float: right;
  line-height: 1;
}
.detail-close:hover { color: var(--ink); }

/* Footer */
footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--ink-dim);
  text-align: center;
}
footer a { color: var(--teal); text-decoration: none; }
footer a:hover { color: var(--ink); }

/* Placeholder subject state */
.placeholder {
  padding: 48px 24px;
  text-align: center;
  background: var(--paper-raised);
  border: 1px dashed var(--rule-strong);
  border-radius: 16px;
  color: var(--ink-dim);
}
.placeholder-title {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 500;
  font-size: 20px;
  color: var(--ink);
  margin-bottom: 8px;
}

/* Phone adjustments */
@media (max-width: 520px) {
  .term {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .term-label {
    padding-top: 0;
  }
  .progress-divider { display: none; }
  .theme-toggle {
    position: static;
    margin-bottom: 16px;
  }
}
/* v6 additions */
.pill-count { font-family: 'JetBrains Mono', monospace; font-size: 11px; opacity: .7; margin-left: 4px; }
.today { margin: 8px 0 24px; }
.today-title { font-family: 'Fraunces', Georgia, serif; font-weight: 600; font-size: 22px; margin: 0 0 12px; color: var(--ink); }
.today-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.today-card { display: flex; flex-direction: column; gap: 6px; text-align: left; padding: 14px; border-radius: 14px; border: 1px solid var(--rule); background: var(--paper-raised); color: var(--ink); cursor: pointer; font: inherit; }
.today-card:hover { border-color: var(--teal); }
.today-subject { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-dim); }
.today-topic { font-family: 'Fraunces', Georgia, serif; font-size: 17px; font-weight: 500; line-height: 1.25; }
.today-meta { display: flex; gap: 8px; flex-wrap: wrap; font-size: 12px; }
.today-status { padding: 2px 8px; border-radius: 999px; background: var(--rule); color: var(--ink-dim); }
.today-status[data-status="learning"] { background: var(--amber-soft); color: var(--ink); }
.today-sheet { padding: 2px 8px; border-radius: 999px; background: var(--teal-soft); color: var(--teal); }
.sheet-link { display: block; margin: 16px 0; padding: 14px 16px; border-radius: 12px; background: var(--teal-soft); border: 1px solid var(--teal); color: var(--ink); text-decoration: none; }
.sheet-link:hover { filter: brightness(1.03); }
.sheet-eyebrow { display: block; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--teal); }
.sheet-title { display: block; font-family: 'Fraunces', Georgia, serif; font-size: 18px; font-weight: 600; margin: 2px 0 4px; }
.sheet-hint { display: block; font-size: 13px; color: var(--ink-dim); }
@media (max-width: 520px) { .today-grid { grid-template-columns: 1fr 1fr; } .today-topic { font-size: 15px; } }
.resources-link{text-decoration:none;display:inline-block}