:root {
  --bg: #f7f5f0;
  --surface: #ffffff;
  --surface2: #f0ede6;
  --border: rgba(0, 0, 0, 0.08);
  --border2: rgba(0, 0, 0, 0.15);
  --text: #1a1a18;
  --muted: #8a8880;
  --accent: #2a2a28;
  --col-w: 272px;
  --radius: 12px;
}
html.dark {
  --bg: #0f0f0e;
  --surface: #1a1a18;
  --surface2: #222220;
  --border: rgba(255, 255, 255, 0.07);
  --border2: rgba(255, 255, 255, 0.14);
  --text: #f0ede6;
  --muted: #7a7870;
  --accent: #e8e4dc;
}
body,
header,
.modal,
.field input,
.field textarea,
.col,
.card,
.add-col,
.add-card-btn,
.btn-ghost,
.pri-opt,
.tag-opt {
  transition:
    background 0.2s,
    border-color 0.2s,
    color 0.2s;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Geist Mono", monospace;
  font-size: 13px;
  font-weight: 300;
  min-height: 100vh;
}
header {
  padding: 1.2rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 200;
}
.logo {
  font-family: "Lora", serif;
  font-style: italic;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}
.stats {
  font-size: 11px;
  color: var(--muted);
  display: flex;
  gap: 16px;
}
.stat-val {
  font-weight: 500;
  color: var(--text);
}
.theme-btn {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  color: var(--text);
  transition:
    background 0.15s,
    border-color 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.theme-btn:hover {
  background: var(--border);
}
.new-col-btn {
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: 8px;
  padding: 6px 14px;
  font-family: "Geist Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: opacity 0.15s;
}
.new-col-btn:hover {
  opacity: 0.8;
}

.board {
  display: flex;
  gap: 14px;
  padding: 1.8rem 2rem;
  overflow-x: auto;
  align-items: flex-start;
  min-height: calc(100vh - 57px);
}
.board::-webkit-scrollbar {
  height: 5px;
}
.board::-webkit-scrollbar-thumb {
  background: var(--border2);
  border-radius: 3px;
}

.col {
  flex: 0 0 var(--col-w);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.col.drag-over {
  outline: 2px dashed var(--border2);
  outline-offset: -2px;
}
.col.col-dragging {
  opacity: 0.4;
  cursor: grabbing;
}
.col.col-drag-over {
  box-shadow: 0 0 0 2px var(--accent);
  border-radius: var(--radius);
}
.col-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  cursor: grab;
}
.col-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.col-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.col-meta {
  display: flex;
  align-items: center;
  gap: 6px;
}
.col-count {
  font-size: 10px;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1px 7px;
}
.col-del {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  font-size: 16px;
  line-height: 1;
  padding: 2px 5px;
  border-radius: 4px;
  transition:
    background 0.1s,
    color 0.1s;
}
.col-del:hover {
  background: #fde8e8;
  color: #c0392b;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 11px 12px 10px;
  cursor: grab;
  transition:
    box-shadow 0.15s,
    border-color 0.15s;
  animation: slideIn 0.18s ease;
  position: relative;
}
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.card:hover {
  border-color: var(--border2);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.card.dragging {
  opacity: 0.3;
  cursor: grabbing;
}

.card-priority-bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  border-radius: 9px 0 0 9px;
}
.card-title {
  font-size: 13px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text);
  margin-bottom: 8px;
  padding-left: 8px;
  word-break: break-word;
}
.card-title.done-text {
  text-decoration: line-through;
  color: var(--muted);
}
.card-footer {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding-left: 8px;
}
.tag {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 2px 7px;
  border-radius: 20px;
  text-transform: uppercase;
}
.due {
  font-size: 10px;
  color: var(--muted);
  margin-left: auto;
}
.due.overdue {
  color: #c0392b;
}
.due.soon {
  color: #e67e22;
}

.card-actions {
  display: none;
  position: absolute;
  top: 7px;
  right: 7px;
  gap: 3px;
}
.card:hover .card-actions {
  display: flex;
}
.card-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 3px 6px;
  cursor: pointer;
  font-size: 11px;
  color: var(--muted);
  transition: all 0.1s;
  line-height: 1;
}
.card-btn:hover {
  background: var(--border);
  color: var(--text);
}
.card-btn.del:hover {
  background: #fde8e8;
  color: #c0392b;
  border-color: #f5b7b1;
}

.add-card-btn {
  width: 100%;
  text-align: left;
  background: none;
  border: 1px dashed var(--border2);
  border-radius: 8px;
  padding: 7px 11px;
  font-size: 11px;
  color: var(--muted);
  cursor: pointer;
  font-family: "Geist Mono", monospace;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
}
.add-card-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 0, 0, 0.02);
}

/* modal */
.modal-bg {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26, 26, 24, 0.45);
  z-index: 500;
  align-items: center;
  justify-content: center;
}
.modal-bg.open {
  display: flex;
}
.modal {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 16px;
  padding: 24px 26px;
  width: 420px;
  max-width: 95vw;
  animation: popIn 0.18s ease;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}
@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.modal h3 {
  font-family: "Lora", serif;
  font-style: italic;
  font-size: 1.15rem;
  margin-bottom: 20px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 14px;
}
.field label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 500;
}
.field input,
.field textarea {
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 9px 11px;
  color: var(--text);
  font-size: 13px;
  font-family: "Geist Mono", monospace;
  outline: none;
  width: 100%;
  resize: none;
  transition: border-color 0.15s;
}
.field input[type="color"] {
  height: 40px;
  padding: 2px;
  cursor: pointer;
}
.field input:focus,
.field textarea:focus {
  border-color: var(--accent);
}

/* ── custom calendar ── */
.cal-wrap {
  position: relative;
}

.cal-trigger {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 9px 11px;
  color: var(--text);
  font-size: 13px;
  font-family: "Geist Mono", monospace;
  cursor: pointer;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border-color 0.15s;
}

.cal-trigger:hover,
.cal-trigger.open {
  border-color: var(--accent);
}

.cal-trigger .cal-icon {
  font-size: 14px;
  opacity: 0.5;
}

.cal-trigger .cal-clear {
  font-size: 12px;
  opacity: 0.4;
  padding: 0 2px;
  cursor: pointer;
  border-radius: 3px;
  line-height: 1;
}

.cal-trigger .cal-clear:hover {
  opacity: 1;
}

.cal-dropdown {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 12px;
  padding: 14px;
  z-index: 600;
  width: 280px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.14);
  animation: popIn 0.15s ease;
}

.cal-dropdown.open {
  display: block;
}

.cal-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.cal-nav-btn {
  background: none;
  border: 1px solid var(--border2);
  border-radius: 6px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  color: var(--text);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.1s;
}
.cal-nav-btn:hover {
  background: var(--surface2);
}
.cal-month-label {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}
.cal-dow {
  font-size: 10px;
  text-align: center;
  color: var(--muted);
  padding: 2px 0 6px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.cal-day {
  font-size: 12px;
  text-align: center;
  padding: 6px 0;
  border-radius: 6px;
  cursor: pointer;
  color: var(--text);
  transition:
    background 0.1s,
    color 0.1s;
  user-select: none;
}

.cal-day:hover:not(.cal-empty):not(.cal-past) {
  background: var(--surface2);
}

.cal-day.cal-empty {
  cursor: default;
}

.cal-day.cal-past {
  color: var(--muted);
  opacity: 0.4;
  cursor: default;
}

.cal-day.cal-today {
  color: var(--accent);
  font-weight: 500;
}

.cal-day.cal-selected {
  background: var(--accent);
  color: var(--bg);
  border-radius: 6px;
}

.cal-day.cal-today.cal-selected {
  background: var(--accent);
  color: var(--bg);
}

.cal-footer {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.cal-btn-today {
  flex: 1;
  padding: 6px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 6px;
  font-size: 11px;
  color: var(--text);
  cursor: pointer;
  font-family: "Geist Mono", monospace;
  transition: background 0.1s;
}

.cal-btn-today:hover {
  background: var(--border);
}

.cal-btn-clear {
  padding: 6px 10px;
  background: none;
  border: 1px solid var(--border2);
  border-radius: 6px;
  font-size: 11px;
  color: var(--muted);
  cursor: pointer;
  font-family: "Geist Mono", monospace;
  transition: all 0.1s;
}

.cal-btn-clear:hover {
  color: #c0392b;
  border-color: #f5b7b1;
}

.tag-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.tag-wrapper {
  display: flex;
  align-items: center;
  gap: 2px;
}

.tag-opt {
  padding: 4px 11px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border: 1.5px solid transparent;
  transition: all 0.12s;
  opacity: 0.5;
  user-select: none;
}

.tag-opt.selected {
  opacity: 1;
  border-color: rgba(0, 0, 0, 0.2);
}

.tag-opt:hover {
  opacity: 0.8;
}

.tag-edit-btn {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  padding: 2px 4px;
  border-radius: 3px;
  transition: all 0.12s;
  display: none;
  line-height: 1;
}

.tag-wrapper .tag-opt.selected ~ .tag-edit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.tag-edit-btn:hover {
  background: var(--border);
  color: var(--text);
}

.tag-manage-btn {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 50%;
  width: 24px;
  height: 24px;
  padding: 0;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s;
  margin-left: auto;
}

.tag-manage-btn:hover {
  background: var(--accent);
  color: var(--bg);
}

.priority-picker {
  display: flex;
  gap: 6px;
}

.pri-opt {
  flex: 1;
  padding: 7px 0;
  border-radius: 7px;
  cursor: pointer;
  font-size: 11px;
  text-align: center;
  font-weight: 500;
  border: 1.5px solid var(--border);
  transition: all 0.12s;
  color: var(--muted);
  background: var(--bg);
  user-select: none;
}

.pri-opt.sel-low {
  background: #27ae60;
  color: #fff;
  border-color: #27ae60;
}

.pri-opt.sel-med {
  background: #e67e22;
  color: #fff;
  border-color: #e67e22;
}
.pri-opt.sel-high {
  background: #c0392b;
  color: #fff;
  border-color: #c0392b;
}

.modal-footer {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 8px;
  align-items: center;
}
.btn-primary {
  padding: 8px 20px;
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: "Geist Mono", monospace;
  font-size: 12px;
  font-weight: 500;
  transition: opacity 0.15s;
}
.btn-primary:hover {
  opacity: 0.78;
}
.btn-ghost {
  padding: 8px 14px;
  background: none;
  border: 1px solid var(--border2);
  border-radius: 8px;
  cursor: pointer;
  font-family: "Geist Mono", monospace;
  font-size: 12px;
  color: var(--muted);
  transition: all 0.15s;
}
.btn-ghost:hover {
  color: var(--text);
}

.add-col {
  flex: 0 0 200px;
  border: 1.5px dashed var(--border2);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--muted);
  cursor: pointer;
  background: none;
  font-family: "Geist Mono", monospace;
  font-size: 12px;
  min-height: 90px;
  padding: 20px;
  transition: all 0.15s;
  align-self: flex-start;
  border-color: var(--border2);
}
.add-col:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 0, 0, 0.02);
}

.empty {
  text-align: center;
  padding: 22px 10px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.9;
}

.col-name-input {
  background: none;
  border: none;
  border-bottom: 1px solid var(--border2);
  font-family: "Geist Mono", monospace;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text);
  outline: none;
  width: 130px;
}
/* new-column modal */
.col-modal-bg {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 500;
  align-items: center;
  justify-content: center;
}
.col-modal-bg.open {
  display: flex;
}
.col-modal {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 16px;
  padding: 24px 26px;
  width: 360px;
  max-width: 95vw;
  animation: popIn 0.18s ease;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.14);
}
.col-modal h3 {
  font-family: "Lora", serif;
  font-style: italic;
  font-size: 1.1rem;
  margin-bottom: 18px;
}
.color-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.color-swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  border: 2.5px solid transparent;
  transition:
    transform 0.12s,
    border-color 0.12s;
}
.color-swatch:hover {
  transform: scale(1.15);
}
.color-swatch.picked {
  border-color: var(--text);
  transform: scale(1.1);
}

/* tag management modal */
.tag-modal-bg {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 700;
  align-items: center;
  justify-content: center;
}
.tag-modal-bg.open {
  display: flex;
}
.tag-modal {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 16px;
  padding: 24px 26px;
  width: 360px;
  max-width: 95vw;
  animation: popIn 0.18s ease;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.14);
}
.tag-modal h3 {
  font-family: "Lora", serif;
  font-style: italic;
  font-size: 1.1rem;
  margin-bottom: 18px;
}