:root {
  --bg-base: #0b1612;
  --bg-elev: #132520;
  --bg-elev-2: #1c332c;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --text-primary: #eaf5ef;
  --text-secondary: #9ec0b1;
  --text-tertiary: #5e7a6e;
  --accent: #5fe3a5;
  --accent-soft: #34c784;
  --accent-deep: #108964;
  --success: #7ddc9a;
  --warn: #ffb86b;
  --danger: #ff7a8a;
  --border: rgba(255, 255, 255, 0.07);
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-strong: 0 24px 60px rgba(0, 0, 0, 0.5);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-xl: 32px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  overscroll-behavior-y: contain;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
  position: relative;
}

/* Ambient glow background */
.ambient-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(circle at 15% 8%, rgba(52, 199, 132, 0.20), transparent 45%),
    radial-gradient(circle at 88% 75%, rgba(16, 137, 100, 0.18), transparent 50%),
    radial-gradient(circle at 50% 100%, rgba(95, 227, 165, 0.08), transparent 60%);
}

/* Top bar */
.topbar {
  position: relative;
  z-index: 2;
  padding: 24px 22px 8px;
}

.topbar-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 22px;
}

.greeting-time {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
  margin-bottom: 4px;
}

.greeting-date {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 400;
  font-size: 32px;
  letter-spacing: -0.5px;
  margin: 0;
  font-variation-settings: 'opsz' 80;
  background: linear-gradient(135deg, #fff 0%, #5fe3a5 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.icon-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  backdrop-filter: blur(20px);
}

.icon-btn:active { transform: scale(0.92); background: var(--surface-strong); }

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 18px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  backdrop-filter: blur(20px);
}

.stat-num {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 500;
  font-size: 26px;
  line-height: 1;
  font-variation-settings: 'opsz' 60;
}

.stat-label {
  font-size: 11px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

/* Progress */
.progress-wrap {
  margin-bottom: 18px;
}

.progress-bar {
  height: 6px;
  background: var(--surface);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 6px;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-deep), var(--accent));
  border-radius: 100px;
  transition: width 0.6s var(--ease-out);
}

.progress-text {
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* Filter chips */
.filters {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.filter-chip {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 10px 14px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s var(--ease);
  font-family: inherit;
}

.filter-chip.active {
  background: linear-gradient(135deg, var(--accent-deep), var(--accent-soft));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(52, 199, 132, 0.3);
}

.filter-chip:active { transform: scale(0.96); }

/* Task list */
.task-list {
  position: relative;
  z-index: 1;
  padding: 8px 18px 120px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.task-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
  animation: cardIn 0.4s var(--ease-out) both;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.task-card.removing {
  opacity: 0;
  transform: translateX(80px) scale(0.95);
}

.task-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent-soft);
  opacity: 0.8;
}
.task-card[data-priority="low"]::before { background: var(--success); }
.task-card[data-priority="medium"]::before { background: var(--warn); }
.task-card[data-priority="high"]::before { background: var(--danger); }

/* Toggle button */
.toggle {
  width: 26px;
  height: 26px;
  min-width: 26px;
  border-radius: 50%;
  border: 2px solid var(--text-tertiary);
  background: transparent;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.3s var(--ease);
  margin-top: 2px;
  padding: 0;
}

.toggle svg {
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.3s var(--ease-out);
  color: #fff;
}

.task-card.completed .toggle {
  background: linear-gradient(135deg, var(--accent-deep), var(--accent-soft));
  border-color: transparent;
}

.task-card.completed .toggle svg {
  opacity: 1;
  transform: scale(1);
}

.toggle:active { transform: scale(0.88); }

.task-body { flex: 1; min-width: 0; }

.task-title {
  font-size: 15px;
  font-weight: 500;
  margin: 0 0 4px;
  line-height: 1.35;
  color: var(--text-primary);
  word-wrap: break-word;
  transition: all 0.3s var(--ease);
}

.task-card.completed .task-title {
  text-decoration: line-through;
  color: var(--text-tertiary);
}

.task-notes {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.45;
  margin: 0 0 8px;
  word-wrap: break-word;
}

.task-card.completed .task-notes {
  color: var(--text-tertiary);
}

.task-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.task-time {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.task-time.overdue { color: var(--danger); }

.task-time svg {
  width: 13px;
  height: 13px;
}

.task-delete {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.2s var(--ease);
  margin-top: -4px;
  margin-right: -4px;
}

.task-delete:active {
  background: rgba(255, 122, 138, 0.15);
  color: var(--danger);
}

/* Empty state */
.empty-state {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 32px;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.empty-state.visible { display: flex; }

.empty-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  color: var(--accent);
}

.empty-state h2 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 400;
  font-size: 22px;
  margin: 0 0 6px;
  color: var(--text-primary);
}

.empty-state p {
  margin: 0;
  font-size: 14px;
  color: var(--text-tertiary);
}

/* FAB */
.fab {
  position: fixed;
  right: 22px;
  bottom: calc(28px + env(safe-area-inset-bottom));
  width: 60px;
  height: 60px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--accent-deep), var(--accent-soft));
  color: #fff;
  border: none;
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: 0 12px 28px rgba(16, 137, 100, 0.45), 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: 10;
  transition: all 0.25s var(--ease);
}

.fab:active { transform: scale(0.92); }
.fab:hover { box-shadow: 0 16px 36px rgba(16, 137, 100, 0.55); }

/* Bottom sheet */
.scrim {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
  z-index: 50;
}

.scrim.visible { opacity: 1; pointer-events: auto; }

.bottom-sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-elev);
  border-top-left-radius: var(--radius-xl);
  border-top-right-radius: var(--radius-xl);
  padding: 12px 22px calc(24px + env(safe-area-inset-bottom));
  z-index: 51;
  transform: translateY(100%);
  transition: transform 0.4s var(--ease-out);
  box-shadow: var(--shadow-strong);
  max-height: 92vh;
  overflow-y: auto;
}

.bottom-sheet.visible { transform: translateY(0); }

.sheet-handle {
  width: 40px;
  height: 4px;
  background: var(--text-tertiary);
  border-radius: 100px;
  margin: 0 auto 12px;
  opacity: 0.5;
}

.sheet-title {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 500;
  font-size: 24px;
  margin: 0 0 20px;
  font-variation-settings: 'opsz' 60;
}

.field {
  display: block;
  margin-bottom: 16px;
}

.field-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.field input,
.field textarea {
  width: 100%;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 15px;
  resize: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent-soft);
  background: rgba(52, 199, 132, 0.06);
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--text-tertiary);
}

.field input[type="datetime-local"] {
  color-scheme: dark;
}

.priority-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.priority-chip {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 12px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s var(--ease);
}

.priority-chip[data-priority="low"].active {
  background: rgba(125, 220, 154, 0.15);
  border-color: var(--success);
  color: var(--success);
}

.priority-chip[data-priority="medium"].active {
  background: rgba(255, 184, 107, 0.15);
  border-color: var(--warn);
  color: var(--warn);
}

.priority-chip[data-priority="high"].active {
  background: rgba(255, 122, 138, 0.15);
  border-color: var(--danger);
  color: var(--danger);
}

.priority-chip:active { transform: scale(0.96); }

.sheet-actions {
  display: flex;
  gap: 10px;
  margin-top: 22px;
}

.btn {
  flex: 1;
  padding: 14px;
  border-radius: var(--radius-md);
  border: none;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.btn-ghost {
  background: var(--bg-elev-2);
  color: var(--text-secondary);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-deep), var(--accent-soft));
  color: #fff;
  box-shadow: 0 6px 16px rgba(16, 137, 100, 0.35);
}

.btn:active { transform: scale(0.97); }

/* Snackbar */
.snackbar {
  position: fixed;
  left: 50%;
  bottom: calc(100px + env(safe-area-inset-bottom));
  transform: translate(-50%, 80px);
  background: var(--bg-elev-2);
  color: var(--text-primary);
  padding: 12px 20px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border);
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: all 0.35s var(--ease-out);
  max-width: 90vw;
  text-align: center;
}

.snackbar.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* Pulse for FAB on first use */
@keyframes pulse {
  0%, 100% { box-shadow: 0 12px 28px rgba(16, 137, 100, 0.45); }
  50% { box-shadow: 0 12px 28px rgba(16, 137, 100, 0.65), 0 0 0 12px rgba(95, 227, 165, 0.15); }
}

.fab.pulse { animation: pulse 2.5s var(--ease) infinite; }

/* Larger tap area on small screens */
@media (max-width: 380px) {
  .topbar { padding: 18px 16px 8px; }
  .task-list { padding: 8px 14px 120px; }
  .greeting-date { font-size: 28px; }
}