/* ── App Layout ──────────────────────────────────────────────────────────── */
.app-body {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* ── Topbar ──────────────────────────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  position: relative;
  z-index: 50;
}

.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar-right { display: flex; align-items: center; gap: 8px; }

.topbar-divider {
  width: 1px;
  height: 20px;
  background: var(--border);
}

.project-select {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--fg-primary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  cursor: pointer;
  outline: none;
}
.project-select:focus { border-color: var(--accent); }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s, background 0.15s;
  white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover:not(:disabled) { opacity: 0.88; }

.btn-ghost {
  background: var(--bg-tertiary);
  color: var(--fg-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { color: var(--fg-primary); border-color: rgba(255,255,255,0.2); }

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { font-size: 10px; }

/* ── Stats Bar ───────────────────────────────────────────────────────────── */
.stats-bar {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 12px 24px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.stat { display: flex; flex-direction: column; }
.stat-right { margin-left: auto; }

.stat-value {
  font-family: 'Syne', sans-serif;
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
}
.stat-label {
  font-size: 11px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 3px;
}

.text-accent { color: var(--accent); }
.text-warn   { color: #ff8c42; }
.text-muted  { color: var(--fg-muted); }

/* ── Board ───────────────────────────────────────────────────────────────── */
.board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.column {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  min-height: 0;
}
.column:last-child { border-right: none; }

.col-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px 10px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.col-title {
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-secondary);
  flex: 1;
}

.col-count {
  font-size: 12px;
  font-weight: 600;
  color: var(--fg-muted);
  background: var(--bg-tertiary);
  padding: 2px 8px;
  border-radius: 100px;
}

.col-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot-pending  { background: var(--fg-muted); }
.dot-active   { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.dot-blocked  { background: #ff8c42; }
.dot-done     { background: #44e87a; }

.col-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.col-done .task-card { opacity: 0.6; }
.col-done .task-card:hover { opacity: 1; }

.empty-col {
  text-align: center;
  color: var(--fg-muted);
  font-size: 13px;
  margin-top: 24px;
  padding: 16px;
}

/* ── Task Card ───────────────────────────────────────────────────────────── */
.task-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
  position: relative;
}
.task-card:hover {
  border-color: rgba(255,255,255,0.18);
  background: var(--bg-tertiary);
  transform: translateY(-1px);
}

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

.task-card-title {
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--fg-primary);
  margin-bottom: 6px;
}

.task-card-reason {
  font-size: 11px;
  color: var(--fg-muted);
  line-height: 1.4;
  margin-bottom: 8px;
}

.task-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 8px;
}

.task-meta-tag {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 100px;
  background: var(--bg-tertiary);
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tag-overdue {
  background: rgba(255, 140, 66, 0.15);
  color: #ff8c42;
}

.task-card-actions {
  display: none;
  gap: 4px;
  margin-top: 4px;
}
.task-card:hover .task-card-actions { display: flex; }

.card-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}
.card-btn:hover { color: var(--fg-primary); border-color: rgba(255,255,255,0.2); }
.card-btn-done:hover { color: var(--accent); border-color: var(--accent); }
.card-btn-del:hover  { color: #ff5f5f; border-color: #ff5f5f; }

/* ── Score Badge ─────────────────────────────────────────────────────────── */
.score-badge {
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  line-height: 1.4;
}
.score-high { background: rgba(0,229,160,0.15); color: var(--accent); }
.score-mid  { background: rgba(255,188,46,0.15); color: #ffbc2e; }
.score-low  { background: rgba(168,168,179,0.1); color: var(--fg-muted); }
.score-none { background: var(--bg-tertiary); color: var(--fg-muted); }

/* ── Priority Dot ────────────────────────────────────────────────────────── */
.priority-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}
.p-crit { background: #ff3b3b; box-shadow: 0 0 4px #ff3b3b; }
.p-high { background: #ff8c42; }
.p-mid  { background: #ffbc2e; }
.p-low  { background: var(--fg-muted); }

/* ── Modal ───────────────────────────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}
.modal-overlay.active { display: flex; }

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 480px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  padding: 28px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5);
}
.modal-wide { width: 560px; }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.modal-header h2 {
  font-size: 18px;
  font-family: 'Syne', sans-serif;
}
.modal-close {
  background: none;
  border: none;
  color: var(--fg-muted);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
}
.modal-close:hover { color: var(--fg-primary); background: var(--bg-tertiary); }

.modal-form { display: flex; flex-direction: column; gap: 16px; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--fg-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.required { color: #ff5f5f; }

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--fg-primary);
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
  resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--accent); }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding-top: 8px;
}

/* ── Task Detail ─────────────────────────────────────────────────────────── */
.detail-grid { display: flex; flex-direction: column; gap: 16px; }
.detail-score { display: flex; align-items: center; gap: 10px; }
.detail-score-label { font-size: 13px; color: var(--fg-secondary); }
.detail-reasoning { font-size: 14px; color: var(--fg-secondary); line-height: 1.5; }
.detail-hr { border: none; border-top: 1px solid var(--border); }
.detail-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.detail-field { display: flex; flex-direction: column; gap: 4px; }
.detail-field label { font-size: 11px; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.detail-field span { font-size: 14px; font-weight: 500; }
.detail-desc label { font-size: 11px; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.detail-desc p { font-size: 14px; color: var(--fg-secondary); line-height: 1.6; margin-top: 4px; }
.detail-actions { display: flex; justify-content: flex-end; }
.modal-body { padding-bottom: 4px; }

.inline-select {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--fg-primary);
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  cursor: pointer;
  outline: none;
}

/* ── Toast ───────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--fg-primary);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  z-index: 300;
  transition: transform 0.25s ease, opacity 0.25s;
  opacity: 0;
  pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast-success { border-color: rgba(0,229,160,0.4); color: var(--accent); }
.toast-error   { border-color: rgba(255,95,95,0.4); color: #ff5f5f; }

/* ── Spinner ─────────────────────────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 12px; height: 12px;
  border: 2px solid rgba(0,0,0,0.3);
  border-top-color: #000;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Scrollbar polish ────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .board { grid-template-columns: repeat(2, 1fr); overflow-y: auto; height: auto; }
  .app-body { height: auto; overflow: auto; }
}
@media (max-width: 540px) {
  .board { grid-template-columns: 1fr; }
  .stats-bar { gap: 16px; flex-wrap: wrap; }
}