/* Task Manager PWA — Styles */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500&family=Fira+Code:wght@300;400;500&family=Fraunces:wght@300;600;700&display=swap');

:root {
  --bg: #F4ECD8;
  --surface: #EBE2C8;
  --surface2: #E2D8BC;
  --border: #CBBF9A;
  --accent: #2B5E3A;
  --accent2: #4A7A56;
  --accent3: #6B3D2B;
  --text: #2E2B1F;
  --muted: #7A7060;
  --heading: #1A1810;
  --white: #FDFAF0;
  --danger: #dc2626;
  --warning: #d97706;
  --info: #2563eb;
  --purple: #7c3aed;
}

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

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* --- Header --- */

header {
  background: var(--accent);
  color: var(--white);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 100;
}

header h1 {
  font-family: 'Fraunces', serif;
  font-size: 1.1rem;
  font-weight: 600;
  flex: 1;
}

header input {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  padding: 4px 8px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 2px;
  background: rgba(255,255,255,0.15);
  color: var(--white);
}

header input::placeholder { color: rgba(255,255,255,0.5); }

/* --- Multi-Select Dropdown --- */

.multi-select {
  position: relative;
  display: inline-block;
}

.ms-toggle {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  padding: 4px 8px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 2px;
  background: rgba(255,255,255,0.15);
  color: var(--white);
  cursor: pointer;
  white-space: nowrap;
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ms-toggle:hover {
  background: rgba(255,255,255,0.25);
}

.ms-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 100;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  min-width: 180px;
  max-height: 280px;
  overflow-y: auto;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.multi-select.open .ms-dropdown {
  display: block;
}

.ms-option {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  font-size: 0.82rem;
  cursor: pointer;
  color: var(--text);
}

.ms-option:hover {
  background: var(--surface2);
}

.ms-option input[type="checkbox"] {
  accent-color: var(--accent);
}

/* Sidebar multi-selects */
.sidebar-filters .multi-select { width: 100%; }
.sidebar-filters .ms-toggle { width: 100%; max-width: none; text-align: left; }
.sidebar-filters .ms-dropdown { width: 100%; }

.header-btn {
  background: none;
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--white);
  padding: 4px 10px;
  border-radius: 2px;
  cursor: pointer;
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
}
.header-btn:hover { background: rgba(255,255,255,0.15); }
.header-btn.active { background: rgba(255,255,255,0.25); }

/* --- Nav tabs --- */

nav {
  background: var(--surface);
  display: flex;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

nav button {
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
  padding: 10px 16px;
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}

nav button.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 500;
}

nav button:hover { color: var(--text); }
nav button[draggable="true"] { cursor: grab; }
nav button.tab-dragging { opacity: 0.4; }

/* --- Main content --- */

main {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

/* --- List view --- */

.task-group {
  margin-bottom: 24px;
}

.task-group-header {
  font-family: 'Fraunces', serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--heading);
  padding: 8px 0 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.task-group-header .badge {
  font-family: 'Fira Code', monospace;
  font-size: 0.7rem;
  background: var(--surface2);
  color: var(--muted);
  padding: 2px 6px;
  border-radius: 2px;
}

.repo-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-right: 4px;
}

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

.task-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 10px 12px;
  margin-bottom: 6px;
  cursor: pointer;
  transition: box-shadow 0.15s;
}

.task-card:hover { box-shadow: 0 1px 4px rgba(0,0,0,0.08); }
.task-card.dragging { opacity: 0.5; transform: rotate(1deg); }

.task-card .title {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.task-card .title input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--accent);
  cursor: pointer;
}

.task-card .title span { flex: 1; }

.task-card .meta {
  display: flex;
  gap: 6px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.task-card .label-tag {
  font-family: 'Fira Code', monospace;
  font-size: 0.65rem;
  padding: 1px 6px;
  border-radius: 2px;
  color: var(--white);
}

.task-card .due-date {
  font-family: 'Fira Code', monospace;
  font-size: 0.7rem;
  color: var(--muted);
}

.task-card .due-date.overdue { color: var(--danger); font-weight: 500; }

.task-card .subtasks {
  font-family: 'Fira Code', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  margin-top: 4px;
}

.task-card .subtasks .progress {
  display: inline-block;
  width: 50px;
  height: 4px;
  background: var(--surface2);
  border-radius: 2px;
  margin-left: 4px;
  vertical-align: middle;
}

.task-card .subtasks .progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
}

.task-card.closed .title span { text-decoration: line-through; color: var(--muted); }

/* --- Kanban view --- */

.kanban {
  display: flex;
  gap: 12px;
  align-items: start;
  overflow-x: auto;
  padding-bottom: 8px;
}

.kanban-column {
  min-width: 220px;
  flex: 1;
}

.kanban-column {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  min-height: 200px;
}

.kanban-column-header {
  font-family: 'Fraunces', serif;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.kanban-column-header .badge {
  font-family: 'Fira Code', monospace;
  font-size: 0.7rem;
  background: var(--surface2);
  padding: 2px 6px;
  border-radius: 2px;
}

.kanban-column-body {
  padding: 8px;
  min-height: 100px;
}

.kanban-column-body.drag-over {
  background: rgba(43, 94, 58, 0.08);
}

/* --- Timeline view --- */

.timeline {
  position: relative;
  padding: 16px 0;
}

.timeline-header {
  display: flex;
  gap: 0;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.timeline-day {
  flex: 1;
  text-align: center;
  font-family: 'Fira Code', monospace;
  font-size: 0.65rem;
  color: var(--muted);
  padding: 4px 0;
  min-width: 40px;
}

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

.timeline-row {
  display: flex;
  align-items: center;
  margin-bottom: 4px;
  height: 28px;
  position: relative;
}

.timeline-label {
  width: 180px;
  font-size: 0.75rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-right: 8px;
  flex-shrink: 0;
}

.timeline-bar-area {
  flex: 1;
  position: relative;
  height: 100%;
}

.timeline-bar {
  position: absolute;
  height: 20px;
  top: 4px;
  border-radius: 2px;
  font-family: 'Fira Code', monospace;
  font-size: 0.6rem;
  color: var(--white);
  padding: 2px 6px;
  white-space: nowrap;
  overflow: hidden;
}

/* --- Create task modal --- */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 20px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal h2 {
  font-family: 'Fraunces', serif;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.form-row {
  display: flex;
  gap: 12px;
}

.form-row .form-group {
  flex: 1;
}

.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-family: 'Fira Code', monospace;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--bg);
  color: var(--text);
}

.form-group textarea { min-height: 80px; resize: vertical; }

.form-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 16px;
}

.btn {
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 2px;
  cursor: pointer;
  background: var(--surface);
  color: var(--text);
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

.btn-danger {
  background: var(--danger);
  color: var(--white);
  border-color: var(--danger);
}

/* --- Toast --- */

.toast-container {
  position: fixed;
  bottom: 16px;
  right: 16px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--white);
  border-radius: 2px;
  animation: fadeUp 0.3s ease;
}

.toast.error { background: var(--danger); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Auth screen --- */

.auth-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: 20px;
}

.auth-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 32px;
  max-width: 400px;
  width: 100%;
  text-align: center;
}

.auth-box h1 {
  font-family: 'Fraunces', serif;
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 8px;
}

.auth-box p {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 20px;
}

.auth-box input {
  width: 100%;
  padding: 10px;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--bg);
  margin-bottom: 12px;
}

/* --- Status bar --- */

.status-bar {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 6px 16px;
  font-family: 'Fira Code', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
}

/* --- Calendar view --- */

.calendar-layout {
  display: flex;
  gap: 16px;
  height: calc(100dvh - 140px);
}

.calendar-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.calendar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-family: 'Fraunces', serif;
}

.calendar-nav #cal-title {
  font-size: 1.1rem;
  font-weight: 600;
  min-width: 160px;
  text-align: center;
}

.cal-view-toggle {
  margin-left: auto;
  display: flex;
  gap: 4px;
}

.cal-view-toggle .header-btn {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
  font-size: 0.75rem;
  padding: 4px 10px;
}

.cal-view-toggle .header-btn.active {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

.cal-month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 2px;
  flex: 1;
}

.cal-day-header {
  background: var(--surface);
  font-family: 'Fira Code', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  text-align: center;
  padding: 6px 4px;
}

.cal-day {
  background: var(--white);
  padding: 4px;
  min-height: 80px;
  font-size: 0.75rem;
  overflow-y: auto;
  position: relative;
  cursor: default;
}

.cal-day.other-month { background: var(--bg); }
.cal-day.today { outline: 2px solid var(--accent); outline-offset: -2px; }
.cal-day.drag-over { background: rgba(43, 94, 58, 0.1); }

.cal-day-number {
  font-family: 'Fira Code', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 2px;
}

.cal-day.today .cal-day-number { color: var(--accent); font-weight: 600; }

.cal-task {
  font-size: 0.65rem;
  padding: 2px 4px;
  margin-bottom: 2px;
  border-radius: 2px;
  color: var(--white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}

.cal-task:hover { opacity: 0.85; }

/* Week view */
.cal-week-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 2px;
  flex: 1;
}

.cal-week-day {
  background: var(--white);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow-y: auto;
}

.cal-week-day.today { outline: 2px solid var(--accent); outline-offset: -2px; }
.cal-week-day.drag-over { background: rgba(43, 94, 58, 0.1); }

.cal-week-day-header {
  background: var(--surface);
  font-family: 'Fira Code', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  text-align: center;
  padding: 8px 4px;
  border-bottom: 1px solid var(--border);
}

.cal-week-day-header .day-name { display: block; }
.cal-week-day-header .day-num {
  display: block;
  font-size: 1rem;
  color: var(--text);
  font-weight: 500;
}

.cal-week-day.today .cal-week-day-header .day-num { color: var(--accent); }

.cal-week-day-body {
  padding: 6px;
  flex: 1;
  overflow-y: auto;
}

.cal-week-task {
  font-size: 0.75rem;
  padding: 6px 8px;
  margin-bottom: 4px;
  border-radius: 2px;
  background: var(--white);
  border-left: 3px solid var(--accent);
  cursor: pointer;
}

.cal-week-task:hover { box-shadow: 0 1px 4px rgba(0,0,0,0.08); }
.cal-week-task .task-title { font-weight: 400; }
.cal-week-task .task-meta { font-size: 0.65rem; color: var(--muted); margin-top: 2px; }

/* Calendar sidebar */
.calendar-sidebar {
  width: 280px;
  flex-shrink: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  font-family: 'Fraunces', serif;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.sidebar-filters {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-bottom: 1px solid var(--border);
}

.sidebar-filters select,
.sidebar-filters input {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.75rem;
  padding: 4px 6px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--white);
  color: var(--text);
  width: 100%;
}

#sidebar-tasks {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

#sidebar-tasks .task-card {
  font-size: 0.8rem;
  padding: 8px;
  margin-bottom: 4px;
}

/* --- Recurrence badge --- */

.recurrence-badge {
  font-family: 'Fira Code', monospace;
  font-size: 0.6rem;
  padding: 1px 5px;
  border-radius: 2px;
  background: var(--purple);
  color: var(--white);
}

/* --- Multi-select & bulk bar --- */

.task-card .done-cb {
  width: 14px;
  height: 14px;
  cursor: pointer;
  flex-shrink: 0;
}

.task-card.selected {
  outline: 2px solid var(--accent);
  background: rgba(43, 94, 58, 0.08);
}

/* --- List toolbar & collapsible groups --- */

.list-toolbar {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

.list-toolbar .header-btn {
  color: var(--text);
  border-color: var(--border);
  background: var(--surface);
  font-size: 0.75rem;
}

.list-toolbar .header-btn:hover {
  background: var(--surface2);
}

.task-group-header {
  cursor: pointer;
  user-select: none;
}

.collapse-chevron {
  display: inline-block;
  width: 14px;
  font-size: 0.7rem;
  color: var(--muted);
  text-align: center;
}

.bulk-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  background: var(--accent);
  color: var(--white);
  font-size: 0.85rem;
  position: sticky;
  bottom: 32px;
  z-index: 50;
}

.bulk-bar select {
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.15);
  color: var(--white);
  font-size: 0.8rem;
}

.bulk-bar select option {
  background: var(--surface);
  color: var(--text);
}

.btn-sm {
  padding: 4px 10px;
  font-size: 0.8rem;
}

.bulk-bar .btn-primary {
  background: var(--white);
  color: var(--accent);
}

.bulk-bar .btn-primary:hover {
  background: var(--surface);
}

.bulk-bar .btn {
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--white);
}

/* --- List drag reorder --- */

.task-card.drag-placeholder {
  border: 2px dashed var(--accent);
  background: rgba(43, 94, 58, 0.05);
  min-height: 40px;
}

.task-card[draggable="true"] { cursor: grab; }
.task-card[draggable="true"]:active { cursor: grabbing; }
.cal-task[draggable="true"] { cursor: grab; }
.cal-task[draggable="true"]:active { cursor: grabbing; }
.cal-week-task[draggable="true"] { cursor: grab; }
.cal-week-task[draggable="true"]:active { cursor: grabbing; }

/* --- Responsive --- */

@media (max-width: 600px) {
  header { padding: 8px 12px; }
  header h1 { font-size: 1rem; }
  main { padding: 12px; }
  .kanban { flex-direction: column; }
  .timeline-label { width: 120px; font-size: 0.7rem; }
  .calendar-layout { flex-direction: column; height: auto; }
  .calendar-sidebar { width: 100%; max-height: 300px; }
  .cal-day { min-height: 50px; }
}