/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #94a3b8;
  --text-light: #cbd5e1;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: #eef2ff;
  --high: #ef4444;
  --medium: #f59e0b;
  --low: #10b981;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 10px 30px rgba(0,0,0,.12);
  --header-h: 52px;
  --capture-h: 56px;
  --tabs-h: 44px;
}

html { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100%;
  -webkit-font-smoothing: antialiased;
}

/* ---- Header ---- */
.header {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1rem;
  z-index: 100;
  padding-top: env(safe-area-inset-top);
}
.header-logo {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -.02em;
}
.header-actions { display: flex; gap: .25rem; }

.icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  width: 36px; height: 36px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s;
  font-size: 1.3rem;
  line-height: 1;
}
.icon-btn:hover { background: var(--bg); color: var(--text); }
.icon-btn.active { color: var(--primary); }

/* ---- Capture bar ---- */
.capture-bar {
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  z-index: 90;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: .5rem 1rem;
}

.capture-input-wrap {
  display: flex; align-items: center;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 .75rem;
  transition: border-color .15s, box-shadow .15s;
}
.capture-input-wrap:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,.1);
}
.capture-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-size: .95rem;
  color: var(--text);
  height: 40px;
  font-family: inherit;
}
.capture-input::placeholder { color: var(--text-muted); }

.capture-spinner {
  animation: spin .7s linear infinite;
  color: var(--primary);
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Suggestion bubble ---- */
.suggestion {
  margin-top: .5rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  animation: slide-down .18s ease;
}
@keyframes slide-down {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}
.suggestion.high-border  { border-left: 4px solid var(--high); }
.suggestion.medium-border{ border-left: 4px solid var(--medium); }
.suggestion.low-border   { border-left: 4px solid var(--low); }

.suggestion-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .6rem .75rem .3rem;
}
.suggestion-title {
  font-size: .9rem;
  font-weight: 600;
  flex: 1;
}
.suggestion-close {
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: 1.2rem; line-height: 1;
  padding: 0 .2rem; border-radius: 4px;
}
.suggestion-close:hover { background: var(--bg); }

.suggestion-meta {
  padding: 0 .75rem .4rem;
  font-size: .78rem;
  color: var(--text-muted);
  display: flex; flex-wrap: wrap; gap: .35rem; align-items: center;
}
.meta-chip {
  display: inline-flex; align-items: center; gap: .2rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .1rem .45rem;
  font-size: .72rem;
  font-weight: 500;
}

.suggestion-list-options {
  padding: .25rem .75rem .5rem;
  display: flex; flex-wrap: wrap; gap: .4rem;
}
.list-option-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .25rem .65rem;
  font-size: .78rem;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.list-option-btn:hover, .list-option-btn.selected {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}
.list-option-new {
  border-style: dashed;
  color: var(--text-muted);
}

/* ---- Suggestion edit form ---- */
.suggestion-edit {
  padding: .25rem .75rem .5rem;
  display: flex; flex-direction: column; gap: .4rem;
}
.edit-row { display: flex; gap: .4rem; }
.edit-row input[type=text],
.edit-row select,
.edit-row input[type=date] {
  flex: 1;
  font-size: .8rem;
  padding: .35rem .5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  outline: none;
}
.edit-row input:focus, .edit-row select:focus { border-color: var(--primary); }
.edit-row-split { flex-wrap: wrap; }

.suggestion-actions {
  padding: .5rem .75rem .6rem;
  display: flex; gap: .5rem;
  border-top: 1px solid var(--border);
  margin-top: .25rem;
}

/* ---- Tabs ---- */
.tabs-wrap {
  position: fixed;
  top: calc(var(--header-h) + var(--capture-h));
  left: 0; right: 0;
  z-index: 80;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.tabs {
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 0 .75rem;
  gap: .25rem;
  height: var(--tabs-h);
  align-items: center;
}
.tabs::-webkit-scrollbar { display: none; }

.tab {
  white-space: nowrap;
  border: none;
  background: none;
  font-size: .825rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: .3rem .7rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background .15s, color .15s;
  display: flex; align-items: center; gap: .3rem;
  flex-shrink: 0;
}
.tab:hover { background: var(--bg); color: var(--text); }
.tab.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}
.tab-count {
  background: var(--border);
  color: var(--text-muted);
  border-radius: 999px;
  font-size: .68rem;
  padding: .05rem .35rem;
  min-width: 18px;
  text-align: center;
}
.tab.active .tab-count {
  background: var(--primary);
  color: #fff;
}

/* ---- Main content area ---- */
.main {
  margin-top: calc(var(--header-h) + var(--capture-h) + var(--tabs-h));
  padding: 1rem 1rem 5rem;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

/* Compensate for dynamic capture bar height */
.main { margin-top: calc(var(--header-h) + var(--tabs-h) + 56px); }

/* ---- Empty state ---- */
.empty-state {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--text-muted);
}
.empty-icon {
  font-size: 2.5rem;
  color: var(--text-light);
  margin-bottom: .75rem;
}
.empty-state p { font-size: .9rem; line-height: 1.6; }

/* ---- Task groups ---- */
.task-group { margin-bottom: 1.25rem; }
.group-label {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  padding: 0 .25rem .4rem;
}
.group-tasks { display: flex; flex-direction: column; gap: .4rem; }

/* ---- Task card ---- */
.task-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .65rem .75rem;
  display: flex; align-items: center; gap: .65rem;
  cursor: pointer;
  transition: box-shadow .15s, transform .1s;
  position: relative;
  touch-action: pan-y;
  user-select: none;
}
.task-card:hover { box-shadow: var(--shadow-md); }
.task-card:active { transform: scale(.99); }

/* Priority dot */
.priority-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 1px;
}
.priority-dot.high   { background: var(--high); }
.priority-dot.medium { background: var(--medium); }
.priority-dot.low    { background: var(--low); }

.task-body { flex: 1; min-width: 0; }
.task-title-row {
  display: flex; align-items: center; gap: .4rem;
  flex-wrap: wrap;
}
.task-title {
  font-size: .9rem;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}
.task-card.done .task-title {
  text-decoration: line-through;
  color: var(--text-muted);
}

.task-type-icon {
  font-size: .75rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.task-meta-row {
  display: flex; align-items: center; gap: .35rem;
  margin-top: .2rem;
  flex-wrap: wrap;
}
.cat-badge {
  font-size: .68rem;
  font-weight: 600;
  padding: .1rem .4rem;
  border-radius: 999px;
  color: #fff;
  flex-shrink: 0;
}
.task-due {
  font-size: .72rem;
  color: var(--text-muted);
}
.task-due.overdue { color: var(--high); font-weight: 600; }
.task-due.today   { color: var(--medium); font-weight: 600; }

.task-actions-right {
  display: flex; gap: .2rem; flex-shrink: 0;
}
.task-btn {
  background: none; border: 1px solid transparent;
  width: 28px; height: 28px;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: .85rem;
  transition: background .15s, border-color .15s;
  color: var(--text-muted);
}
.task-btn-complete:hover { background: #d1fae5; border-color: var(--low); color: var(--low); }
.task-card.done .task-btn-complete { background: #d1fae5; border-color: var(--low); color: var(--low); }
.task-btn-edit:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }
.task-btn-delete:hover { background: #fee2e2; border-color: var(--high); color: var(--high); }

/* Swipe delete indicator (mobile) */
.task-card.swiping { background: #fee2e2; }

/* Completed group toggle */
.completed-toggle {
  display: flex; align-items: center; gap: .5rem;
  background: none; border: none; cursor: pointer;
  font-size: .78rem; color: var(--text-muted);
  padding: .4rem .25rem;
  margin-bottom: .25rem;
}
.completed-toggle:hover { color: var(--text); }
.toggle-arrow { transition: transform .2s; }
.toggle-arrow.open { transform: rotate(90deg); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .5rem 1rem;
  border-radius: 8px;
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s;
  border: 1px solid transparent;
  font-family: inherit;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { background: none; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--bg); }
.btn-sm { padding: .3rem .7rem; font-size: .8rem; }

/* ---- Modal ---- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(15,23,42,.45);
  backdrop-filter: blur(3px);
  display: flex; align-items: flex-end;
  z-index: 200;
  padding: 0;
}
@media (min-width: 500px) {
  .modal-overlay { align-items: center; padding: 1rem; }
}
.modal-overlay.hidden { display: none; }

.modal {
  background: var(--surface);
  border-radius: var(--radius) var(--radius) 0 0;
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
  padding: 1.25rem 1rem 2rem;
  max-height: 92vh;
  overflow-y: auto;
  animation: modal-up .2s ease;
}
@media (min-width: 500px) {
  .modal { border-radius: var(--radius); padding: 1.5rem; }
}
@keyframes modal-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: none; }
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.1rem;
}
.modal-header h2 { font-size: 1rem; font-weight: 700; }

.form-group { margin-bottom: .85rem; }
.form-group label { display: block; font-size: .78rem; font-weight: 600; color: var(--text-muted); margin-bottom: .3rem; text-transform: uppercase; letter-spacing: .04em; }
.form-group input[type=text],
.form-group input[type=date],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: .5rem .7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: .9rem;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border-color .15s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--primary); }
.form-group textarea { resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.form-actions {
  display: flex; justify-content: flex-end; gap: .6rem;
  margin-top: 1rem; padding-top: .85rem;
  border-top: 1px solid var(--border);
}

/* ---- Toast ---- */
.toast-area {
  position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%);
  z-index: 400;
  display: flex; flex-direction: column; align-items: center; gap: .4rem;
  pointer-events: none;
  width: 100%; padding: 0 1rem;
}
.toast {
  background: var(--text);
  color: #fff;
  padding: .55rem 1rem;
  border-radius: 8px;
  font-size: .83rem;
  box-shadow: var(--shadow-lg);
  animation: toast-up .2s ease;
  pointer-events: auto;
  max-width: 320px;
  text-align: center;
}
.toast.success { background: #065f46; }
.toast.error   { background: #991b1b; }
.toast.info    { background: var(--primary); }
@keyframes toast-up {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}

/* ---- Settings panel ---- */
.settings-overlay {
  position: fixed; inset: 0;
  background: rgba(15,23,42,.35);
  z-index: 150;
  backdrop-filter: blur(2px);
}
.settings-panel {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: min(360px, 100vw);
  background: var(--surface);
  border-left: 1px solid var(--border);
  z-index: 160;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: slide-in-right .2s ease;
}
@keyframes slide-in-right {
  from { transform: translateX(100%); }
  to   { transform: none; }
}
.settings-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1rem .75rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.settings-header h2 { font-size: 1rem; font-weight: 700; }

.settings-body {
  flex: 1; overflow-y: auto;
  padding: .75rem;
  display: flex; flex-direction: column; gap: .75rem;
}

.settings-list-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .75rem;
  display: flex; flex-direction: column; gap: .5rem;
}
.settings-list-top {
  display: flex; align-items: center; gap: .5rem;
}
.settings-color-btn {
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
}
.settings-color-btn input[type=color] {
  position: absolute; inset: 0;
  opacity: 0; cursor: pointer;
  width: 100%; height: 100%;
}
.settings-list-name {
  flex: 1;
  font-size: .9rem;
  font-weight: 600;
  border: none; outline: none;
  background: none;
  font-family: inherit;
  color: var(--text);
}
.settings-list-name:focus {
  border-bottom: 1px solid var(--primary);
}
.settings-list-desc {
  width: 100%;
  font-size: .8rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .4rem .5rem;
  font-family: inherit;
  resize: none;
  line-height: 1.4;
  outline: none;
  transition: border-color .15s;
}
.settings-list-desc:focus { border-color: var(--primary); color: var(--text); }
.settings-list-desc::placeholder { font-style: italic; }
.settings-list-actions {
  display: flex; justify-content: flex-end;
}
.btn-list-delete {
  background: none; border: none; cursor: pointer;
  font-size: .75rem; color: var(--text-muted); padding: .2rem .4rem;
  border-radius: 4px;
}
.btn-list-delete:hover { color: var(--high); background: #fee2e2; }

.settings-footer {
  padding: .75rem;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

/* ---- Utility ---- */
.hidden { display: none !important; }

/* ---- Responsive / Desktop ---- */
@media (min-width: 680px) {
  .main {
    padding: 1.5rem 1.5rem 3rem;
    margin-top: calc(var(--header-h) + var(--tabs-h) + 56px);
  }
  .capture-bar { padding: .6rem max(1rem, calc(50% - 320px)); }
  .tabs { padding: 0 max(1rem, calc(50% - 320px)); }
}