/* =========================================================
   Kanban — styles
   Light theme = CSS custom properties on :root.
   Dark theme  = overrides on [data-theme='dark'].
   ========================================================= */

*,
*::before,
*::after { box-sizing: border-box; }

:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --column-bg: #ebedf1;
  --card-bg: #ffffff;
  --text: #1d2430;
  --text-muted: #667085;
  --border: #d9dde4;
  --border-strong: #b7bfcc;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: rgba(79, 70, 229, 0.12);
  --danger: #dc2626;
  --danger-soft: rgba(220, 38, 38, 0.1);
  --success: #16a34a;
  --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.08);
  --shadow-card-hover: 0 4px 14px rgba(15, 23, 42, 0.14);
  --shadow-pop: 0 12px 32px rgba(15, 23, 42, 0.2);
  --radius-md: 12px;
}

[data-theme='dark'] {
  --bg: #0f1216;
  --surface: #1a1f27;
  --column-bg: #151a21;
  --card-bg: #212836;
  --text: #e8ebf0;
  --text-muted: #96a0b5;
  --border: #2c3441;
  --border-strong: #434e61;
  --accent: #818cf8;
  --accent-hover: #9aa3fb;
  --accent-soft: rgba(129, 140, 248, 0.16);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.14);
  --success: #4ade80;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-card-hover: 0 4px 14px rgba(0, 0, 0, 0.55);
  --shadow-pop: 0 16px 40px rgba(0, 0, 0, 0.6);
}

html, body { height: 100%; }

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

[hidden] { display: none !important; }

h1, h2, h3, p { margin: 0; }
button { font: inherit; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.icon { display: inline-flex; align-items: center; }
.icon svg { display: block; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn:hover { border-color: var(--border-strong); }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--text-muted); }
.btn.ghost:hover { background: var(--accent-soft); border-color: transparent; color: var(--text); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.danger:hover { filter: brightness(0.95); }
.btn.danger-ghost { background: transparent; border-color: transparent; color: var(--danger); }
.btn.danger-ghost:hover { background: var(--danger-soft); border-color: transparent; }
.btn.small { padding: 5px 10px; font-size: 12.5px; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition: background 0.15s, color 0.15s;
}
.icon-btn:hover { background: var(--accent-soft); color: var(--text); }
.icon-btn.small { width: 22px; height: 22px; }
.icon-btn.danger { color: var(--danger); }
.icon-btn.danger:hover { background: var(--danger-soft); color: var(--danger); }

/* ---------- header ---------- */

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-icon { flex-shrink: 0; }
.brand h1 { font-size: 15px; font-weight: 700; letter-spacing: 0.02em; }

.header-actions { display: flex; align-items: center; gap: 6px; }

.badge {
  background: var(--accent);
  color: #fff;
  font-size: 10.5px;
  font-weight: 700;
  border-radius: 999px;
  padding: 0 6px;
  min-width: 17px;
  height: 17px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

[data-theme='light'] .icon-moon { display: none; }
[data-theme='dark'] .icon-sun { display: none; }

/* ---------- filter bar ---------- */

.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.search {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1 1 220px;
  max-width: 380px;
}
.search-icon {
  position: absolute;
  left: 11px;
  color: var(--text-muted);
  pointer-events: none;
}
.search input {
  width: 100%;
  padding: 7px 30px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font: inherit;
}
.search input::placeholder { color: var(--text-muted); }
.search input:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
#search-clear { position: absolute; right: 5px; }

.select {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 28px 7px 10px;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23888f9c' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 13px;
  cursor: pointer;
  max-width: 190px;
  text-overflow: ellipsis;
}

.filter-status {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ---------- board ---------- */

.board-wrap { flex: 1; min-height: 0; padding: 16px 20px; }

.board {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  height: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 6px;
}

/* ---------- column ---------- */

.column {
  position: relative;
  flex: 0 0 300px;
  width: 300px;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--column-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.column-dragging { opacity: 0.5; }

.column[data-drop-side='before']::before,
.column[data-drop-side='after']::after {
  content: '';
  position: absolute;
  top: 10px;
  bottom: 10px;
  width: 4px;
  border-radius: 4px;
  background: var(--accent);
  z-index: 5;
}
.column[data-drop-side='before']::before { left: -10px; }
.column[data-drop-side='after']::after { right: -10px; }

.column-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 8px 10px 12px;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}
.column-header:active { cursor: grabbing; }

.column-header .grip {
  color: var(--text-muted);
  opacity: 0.75;
  flex-shrink: 0;
}

.column-title {
  flex: 1;
  min-width: 0;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.column-count {
  font-size: 11.5px;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1px 7px;
  border-radius: 999px;
  flex-shrink: 0;
}

.rename-input {
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 2px 6px;
  flex: 1;
  min-width: 0;
}

.column-body {
  flex: 1;
  min-height: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  padding: 4px 10px 6px;
}

.column-footer { padding: 2px 10px 10px; }

.add-card-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 7px;
  text-align: left;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-radius: 8px;
  padding: 6px 8px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.add-card-btn:hover { background: var(--accent-soft); color: var(--text); }

.empty-col {
  border: 1.5px dashed var(--border-strong);
  border-radius: 10px;
  padding: 14px 10px;
  text-align: center;
  color: var(--text-muted);
  font-size: 12.5px;
}

/* ---------- card ---------- */

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  box-shadow: var(--shadow-card);
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
  flex-shrink: 0;
  transition: box-shadow 0.15s, opacity 0.15s;
}
.card:hover { box-shadow: var(--shadow-card-hover); }
.card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.card.dragging { opacity: 0.45; cursor: grabbing; }

.card-top { display: flex; align-items: flex-start; gap: 8px; }
.card-title {
  flex: 1;
  min-width: 0;
  font-size: 13.5px;
  font-weight: 600;
  word-break: break-word;
}
.card-done-badge { color: var(--success); flex-shrink: 0; margin-top: 1px; }
.card--done .card-title { color: var(--text-muted); }

.card-desc {
  margin: 6px 0 0;
  font-size: 12.5px;
  color: var(--text-muted);
  white-space: pre-line;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 9px;
}

.card-labels { display: flex; flex-wrap: wrap; gap: 4px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  padding: 2px 8px 2px 6px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
}
.chip .dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }

.assignee {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-muted);
  max-width: 110px;
  border: none;
  background: none;
  padding: 2px 5px 2px 3px;
  border-radius: 6px;
  cursor: pointer;
  margin-left: auto; /* stays right-aligned even when the card has no labels */
  transition: background 0.15s, color 0.15s;
}
.assignee:hover { background: var(--accent-soft); color: var(--text); }
.assignee--ghost { opacity: 0.7; }
.assignee--ghost:hover { opacity: 1; }
.assignee-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 9.5px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.avatar--empty {
  background: transparent;
  border: 1.5px dashed var(--border-strong);
}

.assignee-popover {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 45;
  min-width: 180px;
  max-width: 240px;
  max-height: 280px;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-pop);
  padding: 4px;
}
.assignee-pop-row {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 6px 8px;
  border: none;
  border-radius: 7px;
  background: none;
  color: var(--text);
  font-size: 12.5px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
}
.assignee-pop-row:hover { background: var(--accent-soft); }
.assignee-pop-row .avatar { width: 22px; height: 22px; font-size: 10px; }
.assignee-pop-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.assignee-pop-row.active .assignee-pop-name { font-weight: 600; }
.assignee-pop-hint {
  margin: 2px 0;
  padding: 6px 8px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-muted);
}

.card-placeholder {
  border: 2px dashed var(--border-strong);
  border-radius: 10px;
  background: var(--accent-soft);
  flex-shrink: 0;
}

/* ---------- composers (inline add forms) ---------- */

.card-composer {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.composer-input {
  width: 100%;
  font: inherit;
  font-size: 13px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  resize: vertical;
  min-height: 52px;
}
.composer-input:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }

.composer-actions { display: flex; align-items: center; gap: 8px; }
.composer-actions .icon-btn { margin-left: auto; }

/* ---------- add column ---------- */

.add-column-slot { flex: 0 0 280px; width: 280px; }

.add-column-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  border-radius: var(--radius-md);
  border: 1.5px dashed var(--border-strong);
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.add-column-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

.column-composer {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow-card);
}
.composer-text {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
}
.composer-text:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }

/* ---------- empty board ---------- */

.empty-board {
  flex: 0 0 300px;
  width: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 30px 20px;
  border: 1.5px dashed var(--border-strong);
  border-radius: 14px;
  background: var(--column-bg);
  text-align: center;
}
.empty-board-icon { color: var(--text-muted); opacity: 0.8; }
.empty-board h2 { font-size: 14.5px; }
.empty-board p { font-size: 12.5px; color: var(--text-muted); }

/* ---------- column menu ---------- */

.column-menu {
  position: absolute;
  top: 46px;
  right: 8px;
  z-index: 20;
  min-width: 175px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-pop);
  padding: 4px;
}
.column-menu button {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  background: none;
  border: none;
  border-radius: 7px;
  color: var(--text);
  cursor: pointer;
  text-align: left;
}
.column-menu button:hover:not(:disabled) { background: var(--accent-soft); }
.column-menu button:disabled { opacity: 0.45; cursor: default; }
.column-menu .menu-danger { color: var(--danger); }
.column-menu .menu-danger:hover:not(:disabled) { background: var(--danger-soft); }
.menu-sep { height: 1px; background: var(--border); margin: 4px 6px; }

/* ---------- modals ---------- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(10, 14, 20, 0.45);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 8vh 16px 16px;
  overflow-y: auto;
}
#confirm-backdrop { z-index: 60; }

.modal {
  width: min(540px, 100%);
  max-height: 84vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-pop);
  padding: 20px;
}
.modal--wide { width: min(680px, 100%); }
.modal--narrow { width: min(430px, 100%); }
.modal h2 { font-size: 17px; }
.modal-sub { color: var(--text-muted); font-size: 12.5px; margin-top: -6px; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label,
.field-label { font-size: 12.5px; font-weight: 600; color: var(--text-muted); }
.field .optional { font-weight: 400; opacity: 0.8; }
.field input,
.field textarea {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
}
.field select.select { width: 100%; max-width: none; padding: 8px 28px 8px 10px; }
.field input:focus,
.field textarea:focus,
.field select:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
.field textarea { resize: vertical; min-height: 90px; }
.field-error { color: var(--danger); font-size: 12px; }

.modal-footer { display: flex; align-items: center; gap: 8px; margin-top: 4px; }
.spacer { flex: 1; }

.chip-row { display: flex; flex-wrap: wrap; gap: 6px; }

.chip-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.chip-toggle .dot { width: 8px; height: 8px; border-radius: 50%; opacity: 0.35; }
.chip-toggle[aria-pressed='true'] { border-color: transparent; color: var(--text); }
.chip-toggle[aria-pressed='true'] .dot { opacity: 1; }

.hint { font-size: 12.5px; color: var(--text-muted); }

/* ---------- label manager ---------- */

.labels-list { display: flex; flex-direction: column; gap: 6px; }

.label-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
}
.label-row .swatch { width: 12px; height: 12px; border-radius: 4px; flex-shrink: 0; }
.label-row .name { flex: 1; font-weight: 500; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.label-row .count { font-size: 11.5px; color: var(--text-muted); white-space: nowrap; }

.label-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.label-form-row { display: flex; gap: 8px; }
.label-form-row input { flex: 1; }

.swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.swatch-btn {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
}
.swatch-btn.selected { box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--text); }

/* ---------- users ---------- */

.user-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
}
.user-row .user-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
}
.user-row .name { flex: 1; font-weight: 500; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-row .count { font-size: 11.5px; color: var(--text-muted); white-space: nowrap; }
.user-row .icon-btn { opacity: 0.65; }
.user-row .icon-btn:hover { opacity: 1; }

/* ---------- archive ---------- */

.archive-content { display: flex; flex-direction: column; gap: 14px; }
.archive-section { display: flex; flex-direction: column; gap: 8px; }
.archive-section h3 {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.archive-item {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}
.archive-item .info { flex: 1; min-width: 0; }
.archive-item .title { font-weight: 600; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.archive-item .sub { font-size: 11.5px; color: var(--text-muted); }
.item-actions { display: flex; gap: 4px; flex-shrink: 0; }

.archive-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 30px 12px;
  text-align: center;
  color: var(--text-muted);
}
.archive-empty-icon { color: var(--border-strong); }
.archive-empty h3 { color: var(--text); font-size: 14px; }
.archive-empty p { font-size: 12.5px; max-width: 320px; }

/* ---------- confirm ---------- */

.confirm-message { color: var(--text-muted); }
.confirm-extra { display: flex; margin-top: 12px; }
.confirm-extra .select { width: 100%; }

/* ---------- toasts ---------- */

.toasts {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 100;
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: min(480px, calc(100vw - 32px));
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow-pop);
  padding: 8px 14px;
  font-weight: 500;
  font-size: 13px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
}
.toast.show { opacity: 1; transform: none; }
.toast-icon { display: inline-flex; }
.toast--success .toast-icon { color: var(--success); }
.toast--danger .toast-icon { color: var(--danger); }
.toast--info .toast-icon { color: var(--accent); }

/* ---------- scrollbars ---------- */

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); background-clip: content-box; }
* { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }

/* ---------- small screens ---------- */

@media (max-width: 640px) {
  .app-header { padding: 10px 12px; }
  .filter-bar { padding: 10px 12px; }
  .board-wrap { padding: 12px; }
  .column,
  .empty-board,
  .add-column-slot { flex-basis: 82vw; width: 82vw; }
  .filter-status { margin-left: 0; width: 100%; order: 5; }
}