/* Mistake notebook (Oct 11 2026). Site tokens from style.css. */
.mk-wrap { max-width: 1040px; margin: 0 auto; padding: 22px 16px 120px; font-family: Inter, system-ui, -apple-system, 'Segoe UI', sans-serif; }
.mk-head { display: flex; flex-wrap: wrap; gap: 14px 24px; align-items: flex-end; justify-content: space-between; }
.mk-head h1 { font: 500 30px Fraunces, Georgia, serif; margin: 0; text-wrap: balance; }
.mk-head p { margin: 4px 0 0; color: var(--ink-2); max-width: 62ch; line-height: 1.5; font-size: 15px; }
.mk-main-acts { display: flex; flex-wrap: wrap; gap: 8px; }
.mk-btn { font: 600 13.5px Inter, sans-serif; color: var(--ink); background: var(--bg-2); border: 1px solid var(--rule); border-radius: 9px; padding: 8px 13px; cursor: pointer; min-height: 38px;
  display: inline-flex; align-items: center; gap: 6px; transition: border-color .15s, background .15s, transform .1s; text-decoration: none; }
.mk-btn:hover { border-color: var(--amber); }
.mk-btn:active { transform: translateY(1px); }
.mk-btn.primary { background: var(--amber); border-color: var(--amber); color: #17140f; }
.mk-btn.good { border-color: rgba(102,187,106,.55); color: #a5d6a7; }
.mk-btn.bad { border-color: rgba(239,83,80,.55); color: #ef9a9a; }
.mk-btn.ghost { background: transparent; color: var(--ink-3); }
details.mk-dl { position: relative; }
details.mk-dl > summary { list-style: none; }
details.mk-dl > summary::-webkit-details-marker { display: none; }
.mk-dlmenu { position: absolute; right: 0; top: calc(100% + 6px); z-index: 30; min-width: 250px; background: var(--bg-2); border: 1px solid var(--rule); border-radius: 12px; padding: 6px;
  box-shadow: 0 14px 34px -14px rgba(0,0,0,.9); display: grid; }
.mk-dlmenu button, .mk-dlmenu label { text-align: left; font: 500 14px Inter, sans-serif; color: var(--ink); background: none; border: 0; border-radius: 8px; padding: 9px 10px; cursor: pointer; }
.mk-dlmenu button:hover, .mk-dlmenu label:hover { background: var(--bg-3, #1d1d22); }
.mk-dlmenu small { display: block; color: var(--ink-3); font-size: 12px; font-weight: 400; }
.mk-dlmenu hr { border: 0; border-top: 1px solid var(--rule); margin: 4px 6px; }
#mk-stats { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 6px; }
#mk-stats > div:not(.mk-src) { background: var(--bg-2); border: 1px solid var(--rule); border-radius: 12px; padding: 10px 16px; min-width: 110px; }
#mk-stats b { display: block; font: 600 26px Fraunces, Georgia, serif; color: var(--ink); font-variant-numeric: tabular-nums; }
#mk-stats span { color: var(--ink-3); font-size: 13px; }
.mk-src { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
#mk-tools { position: sticky; top: 0; z-index: 20; background: var(--bg); padding: 10px 0; border-bottom: 1px solid var(--rule); display: flex; flex-wrap: wrap; gap: 8px 10px; align-items: center; }
.mk-seg { display: inline-flex; border: 1px solid var(--rule); border-radius: 10px; overflow: hidden; }
.mk-seg button { font: 600 13px Inter, sans-serif; color: var(--ink-2); background: var(--bg-2); border: 0; border-right: 1px solid var(--rule); padding: 7px 11px; cursor: pointer; min-height: 36px; }
.mk-seg button:last-child { border-right: 0; }
.mk-seg button.on { background: rgba(230,168,92,.16); color: var(--amber); }
#mk-exam, #mk-q { font: 14px Inter, sans-serif; color: var(--ink); background: var(--bg-2); border: 1px solid var(--rule); border-radius: 10px; padding: 7px 10px; min-height: 36px; }
#mk-q { flex: 1 1 200px; min-width: 0; }
.mk-srcf { display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: 13px; color: var(--ink-2); }
.mk-srcf input { accent-color: var(--amber); }
.mk-group { margin-top: 22px; }
.mk-group h2 { font: 500 23px Fraunces, Georgia, serif; margin: 0 0 8px; display: flex; gap: 10px; align-items: baseline; }
.mk-count { font: 600 12.5px Inter, sans-serif; color: var(--ink-3); background: var(--bg-3, #1d1d22); border: 1px solid var(--rule); border-radius: 999px; padding: 1px 9px; font-variant-numeric: tabular-nums; }
details.mk-sub { border: 1px solid var(--rule); border-radius: 12px; background: var(--bg-2); margin: 0 0 10px; }
details.mk-sub > summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 10px; align-items: center; padding: 11px 14px; font: 600 15px Inter, sans-serif; }
details.mk-sub > summary::-webkit-details-marker { display: none; }
details.mk-sub > summary::before { content: "\25B8"; color: var(--amber); margin-right: 6px; transition: transform .15s; display: inline-block; }
details.mk-sub[open] > summary::before { transform: rotate(90deg); }
details.mk-sub > summary > span:first-child { flex: 1; }
.mk-list { display: grid; gap: 10px; padding: 0 12px 12px; }
.mk-group > .mk-list { padding: 0; }
.mk-card { background: var(--bg); border: 1px solid var(--rule); border-left: 4px solid #ef5350; border-radius: 10px; padding: 11px 14px; transition: opacity .25s, transform .25s; }
.mk-card.fixed { border-left-color: #66bb6a; opacity: .85; }
.mk-card.mk-leave { opacity: 0; transform: translateX(14px); }
.mk-meta { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; font-size: 12.5px; color: var(--ink-3); margin-bottom: 6px; }
.mk-chip { font: 600 12px Inter, sans-serif; border-radius: 999px; padding: 2px 9px; border: 1px solid var(--rule); color: var(--ink-2); background: var(--bg-3, #1d1d22); }
.mk-chip.src-exam { color: #90caf9; border-color: rgba(144,202,249,.4); }
.mk-chip.src-lab { color: #ce93d8; border-color: rgba(206,147,216,.4); }
.mk-chip.src-sheet { color: var(--amber); border-color: rgba(230,168,92,.45); }
.mk-chip.src-objective { color: #80cbc4; border-color: rgba(128,203,196,.4); }
.mk-n { color: #ef9a9a; font-weight: 600; }
.mk-fixed { color: #a5d6a7; font-weight: 600; }
.mk-streak { color: #a5d6a7; }
.mk-q { font-size: 15.5px; line-height: 1.5; color: var(--ink); margin: 2px 0 8px; }
.mk-q.big, .mk-right.big { font-size: 18px; }
.mk-lab { display: inline-block; min-width: 104px; font: 600 11.5px Inter, sans-serif; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-3); }
.mk-you { color: #ef9a9a; line-height: 1.45; margin: 2px 0; }
.mk-right { color: #a5d6a7; font-weight: 600; line-height: 1.45; margin: 2px 0; }
.mk-why { color: var(--ink-2); font-size: 14px; line-height: 1.5; margin-top: 6px; padding-left: 10px; border-left: 2px solid var(--rule); }
.mk-foot { display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; align-items: center; margin-top: 9px; }
.mk-slide, .mk-ref { font-size: 13px; color: var(--amber); text-decoration: none; }
.mk-ref { color: var(--ink-3); }
.mk-acts { display: inline-flex; gap: 6px; margin-left: auto; }
.mk-acts .mk-btn { min-height: 34px; padding: 5px 11px; font-size: 13px; }
.mk-empty { margin: 30px 0; padding: 22px; border: 1px dashed var(--rule); border-radius: 12px; color: var(--ink-2); line-height: 1.6; text-align: center; }
#mk-toast { position: fixed; left: 50%; bottom: calc(18px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); z-index: 90; background: var(--ink); color: var(--bg);
  font: 500 14px Inter, sans-serif; padding: 10px 16px; border-radius: 10px; box-shadow: 0 6px 24px rgba(0,0,0,.4); max-width: min(92vw, 560px); }
.mk-review { position: fixed; inset: 0; z-index: 80; background: rgba(8,8,10,.86); display: grid; place-items: center; padding: 16px; animation: mkIn .2s ease both; }
.mk-noscroll, .mk-noscroll body { overflow: hidden; }
.mk-rcard { font-family: Inter, system-ui, -apple-system, 'Segoe UI', sans-serif; width: min(720px, 100%); max-height: 92vh; overflow: auto; background: var(--bg-2); border: 1px solid var(--rule); border-radius: 16px; padding: 18px 20px; }
.mk-rtop { display: flex; gap: 10px; align-items: center; color: var(--ink-3); font-size: 13px; margin-bottom: 12px; }
.mk-x { margin-left: auto; font-size: 24px; line-height: 1; background: none; border: 0; color: var(--ink-3); cursor: pointer; min-width: 40px; min-height: 40px; }
.mk-racts { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.mk-racts .mk-btn { min-height: 44px; padding: 8px 18px; font-size: 15px; }
.mk-hint { color: var(--ink-3); }
@keyframes mkIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .mk-card, .mk-review { transition: none; animation: none; } }
@media (max-width: 700px) {
  .mk-head h1 { font-size: 24px; }
  #mk-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  #mk-stats > div:not(.mk-src) { min-width: 0; padding: 8px 10px; }
  #mk-stats b { font-size: 22px; }
  .mk-src { grid-column: 1 / -1; }
  #mk-tools { position: static; }
  .mk-seg { overflow-x: auto; max-width: 100%; }
  .mk-lab { display: block; min-width: 0; }
  .mk-dlmenu { right: auto; left: 0; }
}
#mk-save { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; margin: 10px 0 0; font-size: 13.5px; color: var(--ink-2); }
#mk-save .mk-ok { color: #a5d6a7; }
#mk-save .mk-warn { color: var(--amber); }
#mk-save input { font: 14px Inter, sans-serif; color: var(--ink); background: var(--bg-2); border: 1px solid var(--rule); border-radius: 9px; padding: 6px 10px; min-height: 36px; width: 170px; }
#mk-save small { flex-basis: 100%; color: var(--ink-3); font-size: 12.5px; }