/* ------------------------------------------------------------------ tokens */
:root {
  --bg: #0e1014;
  --bg-2: #12151b;
  --panel: #171b22;
  --panel-2: #1c2129;
  --panel-3: #222833;
  --border: #262d39;
  --border-2: #333c4b;
  --text: #e7eaf0;
  --muted: #98a1b3;
  --faint: #6a7386;
  --accent: #6366f1;
  --accent-soft: #6366f126;
  --todo: #7b8697;
  --doing: #3b82f6;
  --blocked: #f59e0b;
  --done: #22c55e;
  --danger: #ef4444;
  --shadow: 0 8px 28px #00000059;
  --r: 10px;
  --r-sm: 6px;
  --mono: ui-monospace, "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

html[data-theme="light"] {
  --bg: #f4f5f8;
  --bg-2: #eceef3;
  --panel: #ffffff;
  --panel-2: #f7f8fa;
  --panel-3: #eef0f4;
  --border: #dfe3ea;
  --border-2: #c9d0db;
  --text: #1a1d24;
  --muted: #5c6575;
  --faint: #8b93a2;
  --accent-soft: #6366f11f;
  --shadow: 0 8px 24px #1a1d2418;
}

* { box-sizing: border-box; }

/* Any class that sets display (.modal-backdrop is grid) would otherwise override
   the browser's own [hidden] rule and leave the element on screen. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font: inherit; color: inherit; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 6px; }
::-webkit-scrollbar-track { background: transparent; }

/* ------------------------------------------------------------------ topbar */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 16px;
  padding: 10px 16px;
  background: color-mix(in srgb, var(--bg-2) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 650; letter-spacing: -0.01em; }
.brand-mark { color: var(--accent); font-size: 18px; }
.brand-name { }

.tabs { display: flex; gap: 2px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--r); padding: 3px; }
.tab {
  border: 0; background: transparent; color: var(--muted);
  padding: 6px 14px; border-radius: var(--r-sm); cursor: pointer; font-weight: 500;
}
.tab:hover { color: var(--text); background: var(--panel-2); }
.tab.is-active { background: var(--accent); color: #fff; }

.topbar-tools { display: flex; align-items: center; gap: 8px; margin-left: auto; flex-wrap: wrap; }
.search-wrap { position: relative; }
.search-wrap kbd {
  position: absolute; right: 7px; top: 50%; transform: translateY(-50%);
  font: 11px var(--mono); color: var(--faint);
  border: 1px solid var(--border-2); border-radius: 4px; padding: 0 4px; pointer-events: none;
}
input[type="search"], input[type="text"], input[type="date"], input[type="number"], select, textarea {
  background: var(--panel); border: 1px solid var(--border); color: var(--text);
  border-radius: var(--r-sm); padding: 6px 9px; outline: none;
}
input[type="search"] { width: 190px; padding-right: 26px; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
select { cursor: pointer; max-width: 170px; }

.switch { display: flex; align-items: center; gap: 5px; color: var(--muted); cursor: pointer; user-select: none; }
.switch input { accent-color: var(--accent); }

.btn {
  background: var(--panel); border: 1px solid var(--border); color: var(--text);
  padding: 6px 12px; border-radius: var(--r-sm); cursor: pointer; font-weight: 500;
  transition: background .12s, border-color .12s;
}
.btn:hover { background: var(--panel-3); border-color: var(--border-2); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: #7274f3; border-color: #7274f3; }
.btn-danger { color: var(--danger); border-color: #ef444455; }
.btn-danger:hover { background: #ef444418; }
.btn-icon { padding: 6px 9px; }
.btn-sm { padding: 3px 8px; font-size: 12.5px; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn-ghost:hover { background: var(--panel-2); color: var(--text); }

/* ------------------------------------------------------------------ layout */
.viewport { padding: 18px 16px 60px; max-width: 1680px; margin: 0 auto; }
.loading, .empty { color: var(--faint); padding: 40px; text-align: center; }
.empty-hint { margin-top: 6px; font-size: 13px; }

.section-head { display: flex; align-items: center; gap: 10px; margin: 0 0 10px; }
.section-head h2 { margin: 0; font-size: 14px; font-weight: 650; letter-spacing: .02em; text-transform: uppercase; color: var(--muted); }
.section-head .count { color: var(--faint); font-size: 12.5px; }
.section-head .spacer { margin-left: auto; }

/* ------------------------------------------------------------------- stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin-bottom: 20px; }
.stat {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--r);
  padding: 12px 14px; position: relative; overflow: hidden;
}
.stat-label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.stat-value { font-size: 26px; font-weight: 650; line-height: 1.15; margin-top: 3px; letter-spacing: -0.02em; }
.stat-sub { color: var(--faint); font-size: 12px; }
.stat.alert .stat-value { color: var(--danger); }
.stat.warn .stat-value { color: var(--blocked); }
.stat.good .stat-value { color: var(--done); }

/* -------------------------------------------------------------- overview */
.overview-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 20px; align-items: start; }
@media (max-width: 1080px) { .overview-grid { grid-template-columns: 1fr; } }

.main-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 14px; }

.main-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--r);
  padding: 14px 16px 12px; position: relative; overflow: hidden;
  transition: border-color .12s, transform .12s;
}
.main-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--mc-color, var(--accent));
}
.main-card:hover { border-color: var(--border-2); }
.main-card.drop-hot { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.main-card.is-done { opacity: .62; }
.main-card.is-hold { opacity: .8; }

.mc-head { display: flex; align-items: flex-start; gap: 8px; }
.mc-title { font-size: 15.5px; font-weight: 620; margin: 0; letter-spacing: -0.01em; cursor: pointer; flex: 1; }
.mc-title:hover { color: var(--accent); }
.mc-desc { color: var(--muted); font-size: 12.5px; margin: 4px 0 0; }
.mc-meta { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin: 9px 0 10px; }

.progress { height: 6px; background: var(--panel-3); border-radius: 99px; overflow: hidden; }
.progress > i { display: block; height: 100%; background: var(--mc-color, var(--accent)); border-radius: 99px; transition: width .25s; }
.progress-row { display: flex; align-items: center; gap: 10px; }
.progress-row .progress { flex: 1; }
.progress-pct { font: 12px var(--mono); color: var(--muted); min-width: 34px; text-align: right; }

.mc-subs { margin-top: 11px; border-top: 1px solid var(--border); padding-top: 8px; }
.mc-more { color: var(--faint); font-size: 12px; margin-top: 6px; cursor: pointer; }
.mc-more:hover { color: var(--accent); }

/* --------------------------------------------------------------- task row */
.task-row {
  display: flex; align-items: center; gap: 8px; padding: 5px 4px; border-radius: var(--r-sm);
  cursor: grab;
}
.task-row:hover { background: var(--panel-2); }
.task-row.dragging { opacity: .4; }
.task-row.is-done .tr-title { text-decoration: line-through; color: var(--faint); }
.tr-check {
  width: 15px; height: 15px; border-radius: 4px; border: 1.5px solid var(--border-2);
  flex: 0 0 auto; cursor: pointer; display: grid; place-items: center; font-size: 10px; color: transparent;
}
.tr-check:hover { border-color: var(--accent); }
.tr-check.on { background: var(--done); border-color: var(--done); color: #06210f; }
.tr-title { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; cursor: pointer; }
.tr-title:hover { color: var(--accent); }

/* ------------------------------------------------------------------ pills */
.pill {
  font-size: 11.5px; padding: 1.5px 7px; border-radius: 99px; border: 1px solid transparent;
  white-space: nowrap; display: inline-flex; align-items: center; gap: 4px;
}
.pill-todo    { color: var(--todo);    background: #7b869722; border-color: #7b869740; }
.pill-doing   { color: var(--doing);   background: #3b82f622; border-color: #3b82f645; }
.pill-blocked { color: var(--blocked); background: #f59e0b22; border-color: #f59e0b45; }
.pill-done    { color: var(--done);    background: #22c55e22; border-color: #22c55e45; }
.pill-hold    { color: var(--blocked); background: #f59e0b1a; border-color: #f59e0b3a; }
.pill-active  { color: var(--doing);   background: #3b82f61a; border-color: #3b82f63a; }
.pill-archived{ color: var(--faint);   background: #6a738622; border-color: #6a738640; }
.pill-tag     { color: var(--muted);   background: var(--panel-3); border-color: var(--border); font-family: var(--mono); font-size: 11px; }
.pill-date    { color: var(--muted);   background: var(--panel-3); border-color: var(--border); font-variant-numeric: tabular-nums; }
.pill-date.soon { color: var(--blocked); border-color: #f59e0b45; background: #f59e0b1a; }
.pill-date.over { color: var(--danger); border-color: #ef444455; background: #ef44441a; }
.pill-main { border-color: var(--border); background: var(--panel-3); color: var(--muted); }
.pill-main i { width: 7px; height: 7px; border-radius: 99px; background: currentColor; display: inline-block; }

.prio { font-size: 11.5px; font-weight: 600; letter-spacing: .02em; }
.prio-0 { color: var(--faint); }
.prio-1 { color: var(--muted); }
.prio-2 { color: var(--blocked); }
.prio-3 { color: var(--danger); }

/* ------------------------------------------------------- small task panel */
.side-panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--r);
  padding: 14px; position: sticky; top: 74px;
}
.side-panel.drop-hot { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.tag-group { margin-bottom: 12px; }
.tag-group-head {
  display: flex; align-items: center; gap: 6px; margin: 0 0 3px;
  font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--faint);
}
.quick-add { display: flex; gap: 6px; margin-top: 10px; }
.quick-add input { flex: 1; min-width: 0; }
.inline-add { width: 100%; margin-top: 6px; background: transparent; border: 1px dashed var(--border-2); color: var(--muted); }
.inline-add::placeholder { color: var(--faint); }

/* ------------------------------------------------------------------ board */
.board { display: grid; grid-template-columns: repeat(4, minmax(240px, 1fr)); gap: 12px; align-items: start; }
@media (max-width: 900px) { .board { grid-template-columns: 1fr; } }
.column {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--r);
  padding: 10px; min-height: 180px; display: flex; flex-direction: column;
}
.column.drop-hot { border-color: var(--accent); background: var(--panel-2); }
.col-head { display: flex; align-items: center; gap: 8px; margin-bottom: 9px; padding: 0 2px; }
.col-dot { width: 8px; height: 8px; border-radius: 99px; }
.col-name { font-weight: 600; font-size: 13px; }
.col-count { color: var(--faint); font-size: 12px; margin-left: auto; font-variant-numeric: tabular-nums; }
.col-body { display: flex; flex-direction: column; gap: 7px; flex: 1; }

.card {
  background: var(--panel-2); border: 1px solid var(--border); border-left: 3px solid var(--c-color, var(--todo));
  border-radius: var(--r-sm); padding: 8px 10px; cursor: grab;
  transition: border-color .12s, transform .08s;
}
.card:hover { border-color: var(--border-2); }
.card.dragging { opacity: .35; }
.card.is-done .card-title { text-decoration: line-through; color: var(--faint); }
.card-title { font-weight: 500; margin-bottom: 5px; overflow-wrap: anywhere; }
.card-meta { display: flex; align-items: center; gap: 5px; flex-wrap: wrap; }
.drop-marker { height: 2px; background: var(--accent); border-radius: 2px; margin: 1px 0; }

/* ---------------------------------------------------------------- planner */
.planner-bar { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.planner-range { font-weight: 600; font-size: 15px; min-width: 210px; }
.seg { display: flex; background: var(--panel); border: 1px solid var(--border); border-radius: var(--r-sm); overflow: hidden; }
.seg button { border: 0; background: transparent; color: var(--muted); padding: 5px 11px; cursor: pointer; }
.seg button.on { background: var(--accent); color: #fff; }

.week-grid { display: grid; grid-template-columns: 220px repeat(7, minmax(0, 1fr)); gap: 8px; align-items: start; }
@media (max-width: 1100px) { .week-grid { grid-template-columns: 1fr; } }
.day {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--r);
  padding: 8px; min-height: 130px; display: flex; flex-direction: column;
}
.day.today { border-color: var(--accent); }
.day.weekend { background: var(--bg-2); }
.day.drop-hot { border-color: var(--accent); background: var(--panel-2); }
.day-head { display: flex; align-items: baseline; gap: 6px; margin-bottom: 7px; }
.day-name { font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--faint); }
.day-num { font-weight: 650; font-variant-numeric: tabular-nums; }
.day.today .day-num { color: var(--accent); }
.day-load { margin-left: auto; font: 11px var(--mono); color: var(--faint); }
.day-load.heavy { color: var(--blocked); }
.day-body { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.backlog { background: var(--panel); border: 1px solid var(--border); border-radius: var(--r); padding: 10px; }
.backlog.drop-hot { border-color: var(--accent); }

.month-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 6px; }
.month-head { font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--faint); text-align: center; padding-bottom: 4px; }
.mday {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--r-sm);
  padding: 6px; min-height: 96px; display: flex; flex-direction: column; gap: 4px;
}
.mday.other { opacity: .45; }
.mday.today { border-color: var(--accent); }
.mday.drop-hot { border-color: var(--accent); background: var(--panel-2); }
.mday-num { font-size: 12px; font-weight: 600; color: var(--muted); font-variant-numeric: tabular-nums; }
.mday.today .mday-num { color: var(--accent); }
.mini {
  font-size: 11.5px; padding: 2px 5px; border-radius: 4px; background: var(--panel-3);
  border-left: 3px solid var(--c-color, var(--todo)); cursor: grab;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.mini.due { border-style: dashed; }
.mini.is-done { text-decoration: line-through; color: var(--faint); }

/* --------------------------------------------------------------- timeline */
.timeline-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--border); border-radius: var(--r); }
.tl { min-width: 720px; position: relative; }
.tl-row { display: grid; grid-template-columns: 240px minmax(0, 1fr); border-bottom: 1px solid var(--border); }
.tl-row:last-child { border-bottom: 0; }
.tl-head-row { position: sticky; top: 0; background: var(--panel-2); z-index: 2; }
.tl-label { padding: 9px 12px; border-right: 1px solid var(--border); display: flex; align-items: center; gap: 8px; min-width: 0; }
.tl-label span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tl-dot { width: 8px; height: 8px; border-radius: 99px; flex: 0 0 auto; }
.tl-track { position: relative; height: 44px; }
.tl-head-row .tl-track { height: 30px; }
.tl-tick { position: absolute; top: 0; bottom: 0; border-left: 1px solid var(--border); font: 10.5px var(--mono); color: var(--faint); padding-left: 4px; }
.tl-grid { position: absolute; inset: 0; }
.tl-today { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--danger); z-index: 3; opacity: .85; }
.tl-bar {
  position: absolute; top: 11px; height: 20px; border-radius: 5px; cursor: pointer;
  display: flex; align-items: center; padding: 0 7px; font-size: 11.5px; color: #fff;
  overflow: hidden; white-space: nowrap; min-width: 8px;
}
.tl-bar:hover { filter: brightness(1.15); }
.tl-bar.est { opacity: .45; border: 1px dashed #ffffff66; }
.tl-marker {
  position: absolute; top: 16px; width: 9px; height: 9px; transform: rotate(45deg) translateX(-4px);
  background: var(--text); border: 1px solid var(--bg); cursor: pointer; z-index: 2;
}
.tl-marker.over { background: var(--danger); }
.tl-marker.done { background: var(--done); }
.tl-legend { display: flex; gap: 14px; color: var(--faint); font-size: 12px; margin-top: 8px; flex-wrap: wrap; }
.tl-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: -1px; }

/* ----------------------------------------------------------------- modals */
.modal-backdrop {
  position: fixed; inset: 0; background: #00000090; backdrop-filter: blur(2px);
  display: grid; place-items: start center; padding: 6vh 16px 16px; z-index: 100; overflow-y: auto;
}
.modal {
  background: var(--panel); border: 1px solid var(--border-2); border-radius: 12px;
  box-shadow: var(--shadow); width: 100%; max-width: 560px; padding: 18px 20px 20px;
}
.modal h3 { margin: 0 0 14px; font-size: 16px; }
.field { margin-bottom: 12px; }
.field > label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.field input, .field select, .field textarea { width: 100%; }
.field textarea { min-height: 68px; resize: vertical; font-family: inherit; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.field-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.modal-actions { display: flex; gap: 8px; margin-top: 16px; align-items: center; }
.modal-actions .spacer { margin-left: auto; }
.hint { color: var(--faint); font-size: 12px; }
input[type="color"] { padding: 2px; height: 32px; cursor: pointer; }

/* ----------------------------------------------------------------- toasts */
.toast-stack { position: fixed; bottom: 16px; right: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 200; }
.toast {
  background: var(--panel-3); border: 1px solid var(--border-2); border-left: 3px solid var(--accent);
  border-radius: var(--r-sm); padding: 9px 13px; box-shadow: var(--shadow); max-width: 340px;
  animation: rise .16s ease-out;
}
.toast.err { border-left-color: var(--danger); }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } }