:root {
  --bg: #0f1115;
  --surface: #181b22;
  --surface-2: #1f2330;
  --border: #2a3040;
  --text: #e8eaf0;
  --muted: #8a91a3;
  --accent: #4f8cff;
  --danger: #ff5c6c;
  --warn: #ffb84f;
  --ok: #3ecf8e;
  --p1: #ff5c6c;
  --p2: #ffb84f;
  --p3: #4f8cff;
  --p4: #8a91a3;
  --radius: 14px;
}

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

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  display: flex;
  flex-direction: column;
  max-width: 640px;
  margin: 0 auto;
  padding: env(safe-area-inset-top) 16px 0;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0 10px;
}

h1 { font-size: 1.5rem; }

#date-line { color: var(--muted); font-size: 0.85rem; margin-top: 2px; }

.icon-btn {
  background: var(--surface);
  color: var(--text);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 1.2rem;
  cursor: pointer;
}
.icon-btn:active { transform: rotate(180deg); transition: transform 0.3s; }

.banner {
  background: var(--surface-2);
  border-left: 3px solid var(--danger);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.9rem;
  margin-bottom: 10px;
  white-space: pre-wrap;
}

.demo-badge {
  background: rgba(255, 184, 79, 0.12);
  border: 1px solid rgba(255, 184, 79, 0.35);
  color: var(--warn);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  margin-bottom: 10px;
  text-align: center;
}

.hidden { display: none !important; }

/* İstatistik kartları */
#stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 8px;
  text-align: center;
}

.stat-num { font-size: 1.5rem; font-weight: 700; }
.stat-num.danger { color: var(--danger); }
.stat-num.ok { color: var(--ok); }
.stat-label {
  color: var(--muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 2px;
}

/* İlerleme çubuğu */
.progress-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 4px;
}

.progress-bar {
  flex: 1;
  height: 8px;
  background: var(--surface-2);
  border-radius: 4px;
  overflow: hidden;
}

#progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--ok));
  border-radius: 4px;
  transition: width 0.5s ease;
}

#progress-text { color: var(--muted); font-size: 0.75rem; min-width: 34px; text-align: right; }

/* Sekmeler */
#tabs {
  display: flex;
  gap: 6px;
  background: var(--surface);
  border-radius: 12px;
  padding: 4px;
  margin: 10px 0 4px;
}

.tab {
  flex: 1;
  background: none;
  border: none;
  color: var(--muted);
  padding: 9px 0;
  border-radius: 9px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
}

.tab.active { background: var(--surface-2); color: var(--text); }

main { flex: 1; overflow-y: auto; padding-bottom: 96px; }

h2 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 16px 0 8px;
}

/* Odak kartı */
#focus-card .task {
  background: linear-gradient(135deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
#focus-card .task .content { font-size: 1.12rem; font-weight: 600; }
#focus-card .task .description {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 6px;
  white-space: pre-wrap;
}

.task-list { list-style: none; }

.task {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 8px;
}

.check {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border: 2px solid var(--muted);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  margin-top: 2px;
}
.check.p1 { border-color: var(--p1); }
.check.p2 { border-color: var(--p2); }
.check.p3 { border-color: var(--p3); }
.check:active, .check.done { background: var(--ok); border-color: var(--ok); }

.task-body { flex: 1; min-width: 0; }
.task .content { font-size: 0.98rem; line-height: 1.35; }
.task .description {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
  margin-top: 4px;
  white-space: pre-wrap;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.task.expanded .description { -webkit-line-clamp: unset; }

.meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 5px;
  font-size: 0.75rem;
  color: var(--muted);
}
.meta .overdue { color: var(--danger); font-weight: 600; }
.meta .time { color: var(--accent); }

.proj-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.proj-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.deadline-chip {
  background: rgba(255, 184, 79, 0.12);
  color: var(--warn);
  border-radius: 6px;
  padding: 1px 6px;
  font-weight: 600;
}
.deadline-chip.urgent {
  background: rgba(255, 92, 108, 0.14);
  color: var(--danger);
}

.tmrw-btn {
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 4px 8px;
  font-size: 0.72rem;
  cursor: pointer;
}
.tmrw-btn:hover { color: var(--text); }

/* Hafta görünümü gün başlıkları */
.day-group h2 { display: flex; justify-content: space-between; align-items: baseline; }
.day-group h2 .count { color: var(--muted); font-weight: 400; }
.day-group h2.today-h { color: var(--accent); }
.day-group h2.overdue-h { color: var(--danger); }

/* Projeler görünümü */
.proj-group { margin-top: 14px; }
.proj-group summary {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 13px 14px;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
}
.proj-group summary::-webkit-details-marker { display: none; }
.proj-group summary .count {
  margin-left: auto;
  color: var(--muted);
  font-weight: 400;
  font-size: 0.8rem;
}
.proj-group ul { margin-top: 8px; }

details summary { cursor: pointer; color: var(--muted); font-size: 0.85rem; padding: 8px 0; }
details ul { margin-top: 6px; }

.empty { text-align: center; color: var(--muted); padding: 50px 0; font-size: 1.05rem; }

footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, var(--bg) 30%);
  padding: 16px;
  padding-bottom: calc(16px + env(safe-area-inset-bottom));
}

#add-form {
  display: flex;
  gap: 8px;
  max-width: 608px;
  margin: 0 auto;
}

#add-input {
  flex: 1;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 24px;
  color: var(--text);
  padding: 12px 18px;
  font-size: 0.95rem;
  outline: none;
}
#add-input:focus { border-color: var(--accent); }

#add-form button {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  flex-shrink: 0;
}

.task.removing { opacity: 0.3; transition: opacity 0.25s; }

/* Detay bottom sheet */
.sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 30;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.sheet {
  background: var(--surface-2);
  border-radius: 20px 20px 0 0;
  width: 100%;
  max-width: 640px;
  max-height: 82vh;
  overflow-y: auto;
  padding: 10px 18px calc(24px + env(safe-area-inset-bottom));
  animation: sheet-up 0.22s ease;
}

@keyframes sheet-up {
  from { transform: translateY(40px); opacity: 0.5; }
  to { transform: translateY(0); opacity: 1; }
}

.sheet-handle {
  width: 40px;
  height: 4px;
  border-radius: 2px;
  background: var(--border);
  margin: 4px auto 14px;
}

.sheet-title { font-size: 1.2rem; font-weight: 700; line-height: 1.35; }

.sheet-desc {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
  margin-top: 10px;
  white-space: pre-wrap;
}

.sheet-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }

.sheet-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 11px;
  font-size: 0.78rem;
  color: var(--text);
}
.sheet-chip.warn { color: var(--warn); border-color: rgba(255, 184, 79, 0.4); }
.sheet-chip.urgent { color: var(--danger); border-color: rgba(255, 92, 108, 0.4); }

.sheet-section {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 18px 0 8px;
}

.sheet-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

.sheet-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  padding: 12px 10px;
  font-size: 0.88rem;
  cursor: pointer;
  text-align: center;
}
.sheet-btn:active { background: var(--border); }
.sheet-btn.primary {
  grid-column: 1 / -1;
  background: var(--ok);
  border-color: var(--ok);
  color: #0f1115;
  font-weight: 700;
}

.sheet-date-row { display: flex; gap: 8px; margin-top: 8px; }
.sheet-date-row input[type="date"] {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 0.88rem;
  color-scheme: dark;
}
.sheet-date-row .sheet-btn { flex-shrink: 0; }

/* Görev ekleme formu (sheet içi) */
.add-field {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  padding: 12px 14px;
  font-size: 0.95rem;
  outline: none;
  font-family: inherit;
}
.add-field:focus { border-color: var(--accent); }
textarea.add-field { resize: vertical; min-height: 64px; margin-top: 8px; }

.choice-row { display: flex; flex-wrap: wrap; gap: 8px; }
.choice-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  padding: 8px 14px;
  font-size: 0.82rem;
  cursor: pointer;
}
.choice-chip.selected { background: var(--accent); border-color: var(--accent); color: #fff; }
.choice-chip.pr1.selected { background: var(--p1); border-color: var(--p1); }
.choice-chip.pr2.selected { background: var(--p2); border-color: var(--p2); color: #0f1115; }
.choice-chip.pr3.selected { background: var(--p3); border-color: var(--p3); }

.sheet-date-row input[type="time"] {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 0.88rem;
  color-scheme: dark;
}

select.add-field { appearance: none; -webkit-appearance: none; }

/* Geri al toast'u */
.toast {
  position: fixed;
  bottom: calc(88px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 0.85rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  z-index: 20;
  max-width: 90%;
  white-space: nowrap;
}
.toast span { overflow: hidden; text-overflow: ellipsis; }
.toast button {
  background: none;
  border: none;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  flex-shrink: 0;
}

/* Ajanda: ay takvimi */
#month-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 0 8px;
}

.month-title { font-size: 1.05rem; font-weight: 700; flex: 1; text-transform: capitalize; }

.month-nav-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  width: 34px;
  height: 34px;
  font-size: 1.1rem;
  cursor: pointer;
  line-height: 1;
}

.month-today-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--accent);
  border-radius: 10px;
  padding: 0 12px;
  height: 34px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

#month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.dow-cell {
  text-align: center;
  color: var(--muted);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 6px 0 4px;
}

.day-cell {
  background: none;
  border: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 5px 0 7px;
  border-radius: 12px;
  cursor: pointer;
}
.day-cell.blank { cursor: default; }
.day-cell.selected { background: var(--surface-2); }

.day-cell .num {
  width: 32px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  border-radius: 50%;
  font-size: 0.95rem;
  color: var(--text);
}
.day-cell.today .num { background: var(--danger); color: #fff; font-weight: 700; }

.day-bar {
  display: flex;
  width: 26px;
  height: 5px;
  border-radius: 3px;
  overflow: hidden;
  margin-top: 4px;
  background: transparent;
}
.day-bar .seg-done { background: var(--ok); }
.day-bar .seg-due { background: #a06bff; }

#agenda-title { display: flex; justify-content: space-between; }
#agenda-title .count { color: var(--muted); font-weight: 400; }

/* Ajanda: zaman çizelgesi */
.agenda-row { display: flex; gap: 10px; }
.agenda-time {
  flex-shrink: 0;
  width: 46px;
  text-align: right;
  color: var(--muted);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  padding-top: 15px;
}
.agenda-row.done-row .agenda-time { color: var(--ok); }
.agenda-row .task { flex: 1; }

.agenda-sep {
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 14px 0 6px;
  padding-left: 56px;
}

/* Tamamlanan görev görünümü */
.done-item .content { text-decoration: line-through; color: var(--muted); }
.undo-btn {
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--border);
  color: var(--accent);
  border-radius: 8px;
  padding: 4px 8px;
  font-size: 0.72rem;
  cursor: pointer;
}
.done-check {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--ok);
  color: #0f1115;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}