* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

:root {
  --bg: #1a1a2e;
  --bg2: #16213e;
  --bg3: #0f3460;
  --card: #1e2a4a;
  --text: #e0e0e0;
  --text2: #a0a0b0;
  --accent: #4fc3f7;
  --danger: #ef5350;
  --warning: #ffa726;
  --success: #66bb6a;
  --border: #2a3a5e;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overscroll-behavior-y: contain;
}

/* ===== HEADER ===== */
.header {
  background: var(--bg2);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header h1 { font-size: 18px; font-weight: 700; color: var(--accent); }

.header-stats {
  font-size: 12px;
  color: var(--text2);
  white-space: nowrap;
}

.menu-btn {
  background: none;
  border: none;
  color: var(--text);
  font-size: 24px;
  cursor: pointer;
  padding: 4px 8px;
}

/* ===== SIDEBAR ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: -280px;
  width: 280px;
  height: 100vh;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  z-index: 200;
  transition: left 0.25s ease;
  overflow-y: auto;
  padding-top: 60px;
}

.sidebar.open { left: 0; }

.overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 150;
}

.overlay.open { display: block; }

.sidebar a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}

.sidebar a:hover, .sidebar a.active {
  background: var(--bg3);
  color: var(--accent);
}

.sidebar .section-label {
  padding: 12px 20px 6px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text2);
}

.badge {
  background: var(--bg3);
  color: var(--accent);
  border-radius: 12px;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
  min-width: 24px;
  text-align: center;
}

.badge.danger { background: var(--danger); color: #fff; }

/* ===== MAIN CONTENT ===== */
.main {
  padding: 16px;
  padding-bottom: 80px;
}

.view-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.view-title .count {
  font-size: 14px;
  color: var(--text2);
  font-weight: 400;
}

/* ===== SECTION HEADERS (Dashboard) ===== */
.section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 4px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
}

.section-header.overdue-header { color: var(--danger); border-bottom: 2px solid var(--danger); margin-bottom: 8px; }
.section-header.today-header { color: var(--accent); border-bottom: 2px solid var(--accent); margin-bottom: 8px; margin-top: 20px; }

.section-count {
  background: var(--bg3);
  color: var(--text);
  border-radius: 12px;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
}

.chevron { margin-left: auto; font-size: 12px; color: var(--text2); }

/* ===== TASK CARDS ===== */
.task-card {
  background: var(--card);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 8px;
  border-left: 4px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  transition: transform 0.15s, opacity 0.15s;
  touch-action: pan-y;
}

.task-card.overdue { border-left-color: var(--danger); }
.task-card.today { border-left-color: var(--accent); }
.task-card.completed { opacity: 0.5; border-left-color: var(--success); }

.task-check { flex-shrink: 0; margin-top: 2px; }

.check-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid var(--text2);
  background: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text2);
  font-size: 14px;
  -webkit-appearance: none;
}

.check-btn:active { transform: scale(0.9); }
.check-btn.checked { border-color: var(--success); background: var(--success); color: #fff; }

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

.task-name {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 4px;
  word-break: break-word;
}

.task-card.completed .task-name { text-decoration: line-through; }

.task-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  color: var(--text2);
}

.task-project-badge {
  background: var(--bg3);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
}

.task-due { font-size: 12px; cursor: pointer; padding: 4px 8px; border-radius: 6px; -webkit-tap-highlight-color: rgba(79,195,247,0.2); }
.task-due:active { background: rgba(79,195,247,0.15); }
.task-due.overdue { color: var(--danger); font-weight: 600; }
.task-due.today { color: var(--accent); font-weight: 600; }
.task-due.no-date { color: var(--text2); }

.task-notes {
  font-size: 13px;
  color: var(--text2);
  margin-top: 4px;
  font-style: italic;
}

/* ===== QUICK ADD BAR ===== */
.quick-add-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 10px 16px;
  padding-bottom: max(10px, env(safe-area-inset-bottom));
  z-index: 100;
}

.quick-add-form {
  display: flex;
  gap: 8px;
}

.quick-add-input {
  flex: 1;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  outline: none;
}

.quick-add-input:focus { border-color: var(--accent); }

.quick-add-btn {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg);
  border: none;
  font-size: 24px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.quick-add-btn:active { transform: scale(0.9); }

/* ===== ACTION MODAL ===== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  z-index: 300;
  align-items: flex-end;
  justify-content: center;
}

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

.modal {
  background: var(--bg2);
  border-radius: 16px 16px 0 0;
  padding: 20px;
  padding-bottom: max(20px, env(safe-area-inset-bottom));
  width: 100%;
  max-width: 500px;
  max-height: 85vh;
  overflow-y: auto;
}

.modal h2 {
  font-size: 16px;
  margin-bottom: 12px;
  color: var(--text);
  word-break: break-word;
}

.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 16px;
  cursor: pointer;
  width: 100%;
  text-align: left;
}

.action-btn:active { background: var(--bg3); }

.action-btn.complete-btn { border-color: var(--success); }
.action-btn.tomorrow-btn { border-color: var(--warning); }
.action-btn.reschedule-btn { border-color: var(--accent); }
.action-btn.cancel-btn { border-color: var(--border); color: var(--text2); justify-content: center; }

.action-icon { font-size: 20px; }

.reschedule-input {
  width: 100%;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 15px;
}

/* ===== FORMS ===== */
.form-row { margin-bottom: 12px; }

.form-row label {
  display: block;
  font-size: 12px;
  color: var(--text2);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
}

.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-row textarea { resize: vertical; min-height: 60px; }

.form-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.btn {
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.btn-sm { padding: 8px 14px; font-size: 13px; }
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-cancel { background: var(--border); color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }

/* ===== BULK BAR ===== */
.bulk-bar {
  position: fixed;
  bottom: 60px;
  left: 0;
  right: 0;
  background: var(--bg2);
  border-top: 1px solid var(--accent);
  padding: 10px 16px;
  z-index: 90;
  display: none;
}

.bulk-inner {
  display: flex;
  gap: 8px;
  align-items: center;
}

.bulk-inner span { font-size: 13px; color: var(--accent); white-space: nowrap; }
.bulk-inner input { flex: 1; padding: 8px; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; color: var(--text); }

/* ===== EMPTY STATE ===== */
.empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--text2);
}

.empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty-text { font-size: 15px; }

/* ===== DESKTOP ===== */
@media (min-width: 768px) {
  .sidebar { left: 0; position: fixed; padding-top: 60px; }
  .main { margin-left: 280px; }
  .quick-add-bar { left: 280px; }
  .overlay { display: none !important; }
  .menu-btn { display: none; }
}