/* Shikigami: washi paper, sumi ink, one vermilion seal colour. */
:root {
  --paper: #f3eee4;
  --paper-2: #ebe4d6;
  --card: #fbf8f2;
  --ink: #1e1c19;
  --ink-2: #5c564d;
  --line: #d8cfbf;
  --seal: #c8402b;
  --seal-ink: #fff6ef;
  --p1: #c8402b;
  --p2: #c98a2b;
  --p3: #6f7f6a;
  --p4: #a49d90;
  --ok: #3f7d4e;
  --shadow: 0 1px 0 rgba(30, 28, 25, .06), 0 2px 8px rgba(30, 28, 25, .06);
  --serif: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #171614; --paper-2: #1f1d1a; --card: #24221e; --ink: #ece6da; --ink-2: #a39b8d;
    --line: #36322c; --seal: #e0583f; --seal-ink: #1a0c08; --p3: #8fa088; --p4: #6d675e;
    --shadow: 0 1px 0 rgba(0, 0, 0, .3), 0 2px 10px rgba(0, 0, 0, .25);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--paper); color: var(--ink); font: 15px/1.45 var(--sans); }
button, input, select, textarea { font: inherit; color: inherit; }
.kanji { font-family: var(--serif); font-weight: 800; }

/* header */
.top {
  position: sticky; top: 0; z-index: 2; display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; background: var(--paper); border-bottom: 1px solid var(--line);
}
.top h1 { margin: 0 auto 0 0; font: 800 22px/1 var(--serif); letter-spacing: .02em; }
.top h1 .kanji { color: var(--seal); margin-right: 4px; }
.spend { display: grid; gap: 4px; min-width: 110px; font: 12px var(--mono); color: var(--ink-2); }
.spend i { display: block; height: 4px; border-radius: 2px; background: var(--line); position: relative; overflow: hidden; }
.spend i::after { content: ""; position: absolute; inset: 0 auto 0 0; width: var(--pct); background: var(--seal); }

button { cursor: pointer; border-radius: 8px; padding: 8px 14px; border: 1px solid var(--line); background: var(--card); }
button.primary { background: var(--ink); color: var(--paper); border-color: var(--ink); font-weight: 600; }
button.ghost { background: transparent; border-color: transparent; color: var(--ink-2); }
button.danger { background: transparent; border-color: var(--seal); color: var(--seal); }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--seal); outline-offset: 2px; }

/* board */
.board {
  display: grid; grid-auto-flow: column; grid-auto-columns: minmax(260px, 1fr); gap: 14px;
  padding: 16px; overflow-x: auto; min-height: calc(100vh - 64px); scroll-snap-type: x mandatory;
}
.column { background: var(--paper-2); border-radius: 12px; padding: 10px; scroll-snap-align: start; border: 1px dashed transparent; }
.column.drop { border-color: var(--seal); }
.column h2 { margin: 2px 4px 10px; font: 600 13px var(--sans); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-2); display: flex; gap: 6px; align-items: baseline; }
.column h2 .kanji { font-size: 16px; color: var(--ink); text-transform: none; }
.column h2 .count { margin-left: auto; font: 12px var(--mono); }
.col-review { background: color-mix(in srgb, var(--seal) 9%, var(--paper-2)); }
.stack { display: grid; gap: 8px; }

.card {
  position: relative; background: var(--card); border-radius: 10px; padding: 10px 12px 9px 14px;
  box-shadow: var(--shadow); cursor: pointer; border-left: 4px solid var(--p3);
}
.card.p1 { border-left-color: var(--p1); }
.card.p2 { border-left-color: var(--p2); }
.card.p4 { border-left-color: var(--p4); }
.card h3 { margin: 0 26px 6px 0; font: 500 14px/1.35 var(--sans); }
.card .meta { display: flex; flex-wrap: wrap; gap: 6px 8px; align-items: center; font: 12px var(--mono); color: var(--ink-2); }
.card .chip { background: var(--paper-2); border-radius: 4px; padding: 1px 6px; color: var(--ink); }
.card .perm { font-family: var(--serif); font-weight: 800; color: var(--ink); }
.card.overdue .when { color: var(--seal); font-weight: 600; }
.card .stamp {
  position: absolute; top: 8px; right: 8px; width: 24px; height: 24px; border-radius: 50%;
  display: grid; place-items: center; font: 800 13px/1 var(--serif); transform: rotate(-8deg);
  border: 2px solid currentColor;
}
.stamp.met { color: var(--ok); }
.stamp.partly { color: var(--p2); }
.stamp.not-met { color: var(--seal); }

/* dialog */
dialog { border: none; border-radius: 14px; padding: 0; width: min(720px, calc(100vw - 32px)); background: var(--card); color: var(--ink); box-shadow: 0 20px 60px rgba(0, 0, 0, .3); }
dialog::backdrop { background: rgba(20, 18, 15, .45); }
#card-form { display: grid; gap: 12px; padding: 18px 20px; max-height: 88vh; overflow-y: auto; }
.dialog-head, .dialog-foot { display: flex; align-items: center; gap: 8px; }
.dialog-head h2 { margin: 0 auto 0 0; font: 800 19px var(--serif); }
.spacer { flex: 1; }
label { display: grid; gap: 4px; font-size: 13px; color: var(--ink-2); flex: 1; min-width: 150px; }
input, select, textarea { width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
textarea { resize: vertical; }
.row { display: flex; flex-wrap: wrap; gap: 12px; }
.row[hidden] { display: none; }
fieldset.smart { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px 12px; display: grid; gap: 10px; margin: 0; }
fieldset.smart legend { font: 800 13px var(--serif); letter-spacing: .2em; color: var(--seal); padding: 0 6px; }
fieldset.smart b { color: var(--seal); font-family: var(--serif); }
#result-box h3 { margin: 0 0 6px; font: 600 13px var(--sans); display: flex; gap: 10px; flex-wrap: wrap; }
#result-meta { font: 12px var(--mono); color: var(--ink-2); font-weight: 400; }
#result { margin: 0; white-space: pre-wrap; font: 12.5px/1.5 var(--mono); background: var(--paper); border-radius: 8px; padding: 10px; max-height: 320px; overflow: auto; }
.errors { margin: 0; color: var(--seal); font-size: 13px; min-height: 1em; }

.toast { position: fixed; left: 50%; bottom: 20px; transform: translate(-50%, 20px); opacity: 0; transition: .2s; background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: 10px; max-width: calc(100vw - 32px); pointer-events: none; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* login */
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login { display: grid; gap: 14px; width: min(340px, 100%); text-align: center; }
.login h1 { margin: 0; font: 800 28px var(--serif); }
.login .seal { margin: 0 auto; width: 64px; height: 64px; border-radius: 12px; background: var(--seal); color: var(--seal-ink); display: grid; place-items: center; font: 800 36px/1 var(--serif); transform: rotate(-4deg); }
.login label { text-align: left; }

@media (max-width: 640px) {
  .top { flex-wrap: wrap; }
  .top h1 { font-size: 19px; }
  .spend { order: 3; width: 100%; }
  .board { grid-auto-columns: 86vw; padding: 12px 16px; }
}

/* tabs */
.tabs { display: flex; gap: 2px; background: var(--paper-2); border-radius: 9px; padding: 3px; }
.tabs button { border: none; background: transparent; padding: 6px 12px; border-radius: 7px; color: var(--ink-2); }
.tabs button[aria-selected="true"] { background: var(--card); color: var(--ink); box-shadow: var(--shadow); font-weight: 600; }
.card .ms-tag { flex-basis: 100%; color: var(--seal); font: 12px var(--sans); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* timeline */
.timeline-view { overflow-x: auto; padding: 0 0 24px; min-height: calc(100vh - 64px); }
.timeline-bar { position: sticky; left: 0; display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; padding: 14px 16px 8px; width: min(100vw, 100%); }
.range { display: flex; gap: 4px; }
.range button { padding: 5px 10px; font-size: 13px; }
.range button[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.legend { margin: 0; font-size: 12px; color: var(--ink-2); display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.lg-ms { color: var(--seal); }
.lg-dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--p3); }
.lg-today { display: inline-block; width: 2px; height: 12px; background: var(--seal); }

.timeline { --label: 120px; padding: 0 16px; width: max-content; }
.tl-row { display: grid; grid-template-columns: var(--label) var(--track); border-bottom: 1px solid var(--line); }
.tl-label { position: sticky; left: 0; z-index: 1; background: var(--paper); padding: 10px 10px 10px 0; font: 600 13px var(--sans); }
.tl-track {
  position: relative; min-height: 52px;
  background-image: repeating-linear-gradient(to right, var(--line) 0 1px, transparent 1px var(--week));
}
.tl-axis .tl-track { min-height: 28px; background-image: none; }
.tl-month { position: absolute; top: 6px; font: 12px var(--mono); color: var(--ink-2); padding-left: 4px; border-left: 1px solid var(--ink-2); }
.tl-today { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--seal); opacity: .8; }

.tl-ms {
  position: absolute; top: 6px; transform: translateX(-7px); display: flex; align-items: center; gap: 4px;
  border: none; background: transparent; padding: 0; white-space: nowrap; font-size: 12px; color: var(--ink);
}
.tl-ms .dia { font-size: 16px; line-height: 1; color: var(--ink); }
.tl-ms .lbl { background: var(--card); border-radius: 5px; padding: 1px 6px; box-shadow: var(--shadow); }
.tl-ms.hit .dia { color: var(--ok); }
.tl-ms.missed .dia, .tl-ms.late .dia { color: var(--seal); }
.tl-ms.missed .lbl { text-decoration: line-through; color: var(--ink-2); }

.tl-card {
  position: absolute; width: 11px; height: 11px; padding: 0; border-radius: 50%; transform: translateX(-5px);
  border: 2px solid var(--card); background: var(--p3); box-shadow: var(--shadow);
}
.tl-card.p1 { background: var(--p1); }
.tl-card.p2 { background: var(--p2); }
.tl-card.p4 { background: var(--p4); }
.tl-card.s-done { opacity: .35; }
.tl-card.s-review { outline: 2px solid var(--seal); outline-offset: 1px; }
.tl-card.overdue { border-color: var(--seal); }
.tl-empty { padding: 24px 0; color: var(--ink-2); position: sticky; left: 16px; }

#ms-cards h3 { margin: 0 0 6px; font: 600 13px var(--sans); }
#ms-progress { font: 12px var(--mono); color: var(--ink-2); font-weight: 400; }
#ms-card-list { margin: 0; padding-left: 18px; font-size: 13px; }

@media (max-width: 640px) {
  .tabs { order: 2; }
  .timeline { --label: 84px; }
}