:root {
  --bg: #0d0f12;
  --bg-elev: #161a20;
  --bg-card: #1c2129;
  --bg-card-hover: #242b35;
  --bg-sheet: #161a20;
  --border: #2a313c;
  --border-soft: rgba(255,255,255,0.06);
  --text: #e8eaed;
  --muted: #8b939e;
  --accent: #5b8cff;
  --accent-soft: rgba(91,140,255,0.16);
  --danger: #ff6b6b;
  --danger-soft: rgba(255,107,107,0.14);
  --ok: #3dd68c;
  --ok-soft: rgba(61,214,140,0.14);
  --warn: #f5a524;
  --col-w: min(272px, 78vw);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 12px 40px rgba(0,0,0,0.45);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
  color-scheme: dark;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.4;
  -webkit-tap-highlight-color: transparent;
  overflow: hidden;
  overscroll-behavior: none;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-height: 100dvh;
  position: relative;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  border: 0;
}

/* ---- Top bar ---- */
.topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  padding-top: max(10px, var(--safe-t));
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
  flex-shrink: 0;
  z-index: 5;
}

.space-switcher { flex: 1; min-width: 0; }

.space-switcher select {
  width: 100%;
  appearance: none;
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 28px 9px 12px;
  font-size: 14px;
  font-weight: 650;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238b939e' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.icon-btn {
  flex-shrink: 0;
  width: 38px; height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  transition: transform 0.12s ease, opacity 0.12s;
}
.icon-btn:active { opacity: 0.75; transform: scale(0.94); }

/* ---- Filters ---- */
.filters, .label-filters {
  display: flex;
  gap: 6px;
  padding: 8px 12px 0;
  overflow-x: auto;
  flex-shrink: 0;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.filters::-webkit-scrollbar, .label-filters::-webkit-scrollbar { display: none; }
.label-filters { padding-top: 6px; padding-bottom: 2px; }

.chip {
  flex-shrink: 0;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--muted);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
  white-space: nowrap;
}
.chip.active, .chip.on {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: transparent;
}
.chip:active { transform: scale(0.96); }

.status-bar {
  padding: 7px 12px;
  font-size: 12px;
  color: var(--muted);
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
}
.status-bar.error { color: var(--danger); }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(88px + var(--safe-b));
  transform: translateX(-50%) translateY(8px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 550;
  box-shadow: var(--shadow);
  z-index: 80;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  max-width: calc(100vw - 32px);
  text-align: center;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast.error { border-color: rgba(255,107,107,0.4); color: var(--danger); }
.toast.ok { border-color: rgba(61,214,140,0.35); }

/* ---- Board ---- */
.board {
  flex: 1;
  display: flex;
  gap: 10px;
  padding: 10px 12px calc(88px + var(--safe-b));
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.column {
  flex: 0 0 var(--col-w);
  width: var(--col-w);
  max-height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  scroll-snap-align: start;
  overflow: hidden;
}
.column.done { opacity: 0.88; }

.col-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 10px 8px;
  border-bottom: 1px solid var(--border-soft);
  flex-shrink: 0;
}
.col-title {
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}
.col-count {
  font-size: 11px;
  color: var(--muted);
  background: var(--bg-card);
  border-radius: 999px;
  padding: 2px 7px;
  min-width: 22px;
  text-align: center;
  font-weight: 650;
}
.col-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  -webkit-overflow-scrolling: touch;
}

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 11px;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, transform 0.12s;
}
.card:active {
  background: var(--bg-card-hover);
  transform: scale(0.985);
}
.card.overdue {
  border-color: rgba(255, 107, 107, 0.5);
  box-shadow: inset 3px 0 0 var(--danger);
}
.card-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 7px;
  word-break: break-word;
  line-height: 1.35;
}
.card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 11px;
  color: var(--muted);
}
.meta-due.overdue { color: var(--danger); font-weight: 700; }
.avatars {
  display: flex;
  margin-left: auto;
  gap: 0;
}
.avatar {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2e3a4a, #3a4a5c);
  color: #c5d0de;
  font-size: 9px;
  font-weight: 750;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--bg-card);
  margin-left: -4px;
}
.avatar:first-child { margin-left: 0; }
.labels {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  margin-top: 6px;
}
.label-chip {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 5px;
  background: #243040;
  color: var(--muted);
  font-weight: 550;
}

.empty-hint, .col-empty {
  color: var(--muted);
  font-size: 13px;
  padding: 24px 10px;
  text-align: center;
}
.col-empty { padding: 14px 4px; font-size: 12px; opacity: 0.7; }

/* ---- Skeleton ---- */
.skeleton-board {
  display: flex;
  gap: 10px;
  width: 100%;
}
.skel-col {
  flex: 0 0 var(--col-w);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.skel-line, .skel-card {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.2s ease-in-out infinite;
  border-radius: 6px;
}
.skel-line { height: 12px; width: 40%; }
.skel-card { height: 64px; }
.skel-card.short { height: 48px; width: 90%; }
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---- FAB ---- */
.fab {
  position: fixed;
  right: 16px;
  bottom: calc(18px + var(--safe-b));
  width: 56px; height: 56px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 28px;
  font-weight: 300;
  line-height: 1;
  box-shadow: 0 8px 28px rgba(91,140,255,0.45);
  cursor: pointer;
  z-index: 20;
  transition: transform 0.15s ease, box-shadow 0.15s;
}
.fab:active { transform: scale(0.92); }

/* ---- Bottom sheet ---- */
.sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 50;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  animation: fadeIn 0.18s ease;
}
.sheet-overlay[hidden] { display: none !important; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.sheet {
  width: 100%;
  max-width: 560px;
  max-height: min(92dvh, 920px);
  background: var(--bg-sheet);
  border-radius: 16px 16px 0 0;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  animation: sheetUp 0.28s cubic-bezier(0.22, 1, 0.36, 1);
  padding-bottom: var(--safe-b);
  border: 1px solid var(--border);
  border-bottom: none;
}
@keyframes sheetUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}
.sheet.closing { animation: sheetDown 0.22s ease forwards; }
@keyframes sheetDown {
  to { transform: translateY(100%); opacity: 0.6; }
}

.sheet-handle {
  flex-shrink: 0;
  display: flex;
  justify-content: center;
  padding: 10px 0 4px;
  cursor: grab;
}
.sheet-handle span {
  width: 36px; height: 4px;
  border-radius: 999px;
  background: var(--border);
}

.sheet-body {
  flex: 1;
  overflow-y: auto;
  padding: 4px 16px 20px;
  -webkit-overflow-scrolling: touch;
}

.sheet-heading {
  font-size: 17px;
  font-weight: 700;
  margin: 4px 0 14px;
}

.sheet-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  word-break: break-word;
  margin-bottom: 10px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 14px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 650;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--muted);
}
.badge.status-new { color: #9bb4ff; background: rgba(91,140,255,0.12); border-color: transparent; }
.badge.status-in_progress { color: #7dd3fc; background: rgba(56,189,248,0.12); border-color: transparent; }
.badge.status-rework { color: #fdba74; background: rgba(251,146,60,0.14); border-color: transparent; }
.badge.status-review { color: #c4b5fd; background: rgba(167,139,250,0.14); border-color: transparent; }
.badge.status-accepted { color: var(--ok); background: var(--ok-soft); border-color: transparent; }
.badge.status-cancelled { color: var(--muted); }
.badge.overdue { color: var(--danger); background: var(--danger-soft); border-color: transparent; }

.meta-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  padding: 12px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft);
}
.meta-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
}
.meta-row .k { color: var(--muted); min-width: 88px; flex-shrink: 0; font-size: 12px; }
.meta-row .v { flex: 1; word-break: break-word; }
.people {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.person-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-elev);
  border-radius: 999px;
  padding: 3px 10px 3px 3px;
  font-size: 12px;
}
.person-chip .avatar { width: 20px; height: 20px; font-size: 8px; margin: 0; }

.section {
  margin-bottom: 18px;
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.section-title {
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
}

.action-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.btn {
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 650;
  cursor: pointer;
  transition: transform 0.1s, opacity 0.1s, background 0.12s;
}
.btn:active { transform: scale(0.97); opacity: 0.9; }
.btn.primary {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
}
.btn.ok {
  background: var(--ok-soft);
  border-color: transparent;
  color: var(--ok);
}
.btn.warn {
  background: rgba(251,146,60,0.14);
  border-color: transparent;
  color: #fdba74;
}
.btn.danger {
  background: var(--danger-soft);
  border-color: transparent;
  color: var(--danger);
}
.btn.ghost {
  background: transparent;
}
.btn.block { width: 100%; }
.btn:disabled { opacity: 0.45; pointer-events: none; }

.seg, .presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.seg button, .presets button {
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--muted);
  border-radius: 8px;
  padding: 8px 11px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}
.seg button.on, .presets button.on {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: transparent;
}

.field { margin-bottom: 14px; }
.field-label {
  display: block;
  font-size: 12px;
  font-weight: 650;
  color: var(--muted);
  margin-bottom: 6px;
}
.field input[type="text"], .field textarea, .inline-input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 11px 12px;
  font-size: 15px;
  font-family: inherit;
  outline: none;
}
.field input:focus, .inline-input:focus {
  border-color: var(--accent);
}

.pick-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 160px;
  overflow-y: auto;
}
.pick-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  cursor: pointer;
  font-size: 13px;
}
.pick-item.on {
  border-color: transparent;
  background: var(--accent-soft);
  color: var(--accent);
}
.pick-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* Checklist */
.check-list { display: flex; flex-direction: column; gap: 4px; }
.check-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  cursor: pointer;
  font-size: 13px;
}
.check-item.done .check-text {
  text-decoration: line-through;
  color: var(--muted);
}
.check-box {
  width: 18px; height: 18px;
  border-radius: 5px;
  border: 1.5px solid var(--border);
  flex-shrink: 0;
  margin-top: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: transparent;
}
.check-item.done .check-box {
  background: var(--ok);
  border-color: var(--ok);
  color: #0d0f12;
  font-weight: 800;
}
.check-add {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}
.check-add input { flex: 1; }

/* Comments */
.comment-list { display: flex; flex-direction: column; gap: 8px; }
.comment {
  display: flex;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-soft);
}
.comment:last-child { border-bottom: none; }
.comment-body { flex: 1; min-width: 0; }
.comment-head {
  display: flex;
  gap: 8px;
  align-items: baseline;
  margin-bottom: 2px;
}
.comment-author { font-weight: 650; font-size: 12px; }
.comment-time { font-size: 11px; color: var(--muted); }
.comment-text { font-size: 13px; word-break: break-word; white-space: pre-wrap; }
.comment-compose {
  display: flex;
  gap: 6px;
  margin-top: 10px;
}
.comment-compose input { flex: 1; }

.sheet-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.sticky-actions {
  position: sticky;
  bottom: 0;
  padding: 12px 0 calc(8px + var(--safe-b));
  background: linear-gradient(transparent, var(--bg-sheet) 30%);
  margin-top: 8px;
}
.sticky-actions .btn { flex: 1; }

.link-bot {
  display: block;
  text-align: center;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 12px;
  text-decoration: none;
  margin-top: 4px;
}

.desc {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 14px;
  white-space: pre-wrap;
  word-break: break-word;
}

body.sheet-open { overflow: hidden; }
body.sheet-open .fab { opacity: 0; pointer-events: none; }

@media (min-width: 720px) {
  .board { padding-left: 16px; padding-right: 16px; }
  :root { --col-w: 280px; }
}


/* ---- v2 polish ---- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 48px 24px;
  text-align: center;
  color: var(--text);
  width: 100%;
}
.empty-ico { font-size: 36px; line-height: 1; margin-bottom: 4px; }
.empty-sub { font-size: 12px; color: var(--muted); }

.meta-snooze, .meta-recur { font-size: 12px; opacity: 0.9; }

.snooze-banner {
  background: rgba(91,140,255,0.12);
  border: 1px solid rgba(91,140,255,0.28);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 12px;
  margin-bottom: 12px;
}

.proof-list { display: flex; flex-direction: column; gap: 8px; }
.proof-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
}
.proof-kind { font-size: 12px; font-weight: 650; }
.proof-cap { font-size: 13px; word-break: break-word; white-space: pre-wrap; }
.proof-cap.muted, .muted { color: var(--muted); }
.proof-time { font-size: 11px; color: var(--muted); }
.proof-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.files-line {
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  padding-bottom: calc(16px + var(--safe-b));
}
.modal-overlay[hidden] { display: none !important; }
.modal {
  width: min(420px, 100%);
  background: var(--bg-sheet);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
  animation: modalIn 0.18s ease-out;
}
.modal-sm { width: min(340px, 100%); }
@keyframes modalIn {
  from { transform: translateY(12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.modal-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}
.modal-hint {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
}
.modal textarea {
  width: 100%;
  resize: vertical;
  min-height: 96px;
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font: inherit;
  margin-bottom: 12px;
}
.modal-actions {
  display: flex;
  gap: 8px;
}
.modal-actions .btn { flex: 1; }

.seg.vertical {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}
.seg.vertical button {
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.seg.vertical button:active {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.btn.warn {
  background: var(--warn);
  color: #1a1200;
  border: none;
  font-weight: 700;
}
.btn.ok {
  background: var(--ok);
  color: #0d0f12;
  border: none;
  font-weight: 700;
}