/* Global styles */
:root {
  --bg: #0f1226;
  --bg-soft: #141737;
  --card: rgba(255, 255, 255, 0.08);
  --card-border: rgba(255, 255, 255, 0.18);
  --text: #e7e9f4;
  --muted: #a9adcf;
  --primary: #7c7cff;
  --primary-strong: #5a5aec;
  --accent: #33e1ed;
  --success: #2ecc71;
  --danger: #ff6b6b;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 10% 0%, #20234a, transparent),
              radial-gradient(1000px 700px at 100% 0%, #1a1f4d, transparent),
              linear-gradient(180deg, #0b0d1d 0%, #0f1226 100%);
}

.app { max-width: 1200px; margin: 0 auto; padding: 24px; }

.glass {
  background: var(--card);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.app-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; margin-bottom: 20px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 28px; }
.titles h1 { margin: 0; font-size: 20px; letter-spacing: 0.2px; }
.subtitle { margin: 2px 0 0; color: var(--muted); font-size: 12px; }

.header-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.month-nav { display: flex; align-items: center; gap: 8px; }
.month-label { font-weight: 600; min-width: 160px; text-align: center; }
.right-actions { display: flex; align-items: center; gap: 12px; }

.icon-btn {
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,0.05);
  color: var(--text);
  padding: 8px 10px; border-radius: 10px; cursor: pointer;
}
.icon-btn:hover { background: rgba(255,255,255,0.09); }

.chip {
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  padding: 8px 12px; border-radius: 999px; cursor: pointer; font-weight: 600; font-size: 12px;
}
.chip.active { background: var(--primary); border-color: transparent; }

.search input {
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  padding: 10px 12px; border-radius: 10px; width: 240px;
}
.search input::placeholder { color: var(--muted); }

.layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 20px; align-items: start; }

.calendar { padding: 16px; }
.weekdays { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; padding: 0 6px 10px; color: var(--muted); font-weight: 600; font-size: 12px; }
.grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }

.day {
  aspect-ratio: 1 / 1; position: relative; overflow: hidden; border-radius: 12px; padding: 10px;
  border: 1px solid var(--card-border); background: rgba(255,255,255,0.03);
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.day:hover { transform: translateY(-2px); background: rgba(255,255,255,0.06); }
.day .date { font-weight: 700; font-size: 14px; }
.day.muted { color: var(--muted); opacity: 0.7; }
.day.today { outline: 2px solid var(--accent); }
.day.selected { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary) inset; }

.badges { position: absolute; bottom: 8px; left: 8px; display: flex; gap: 6px; align-items: center; }
.badge {
  font-size: 10px; padding: 4px 6px; border-radius: 999px; font-weight: 700; letter-spacing: .2px;
  background: rgba(255,255,255,0.08); border: 1px solid var(--card-border);
}
.badge.high { background: rgba(255, 0, 122, 0.25); border-color: rgba(255,0,122,0.5); }
.badge.normal { background: rgba(124, 124, 255, 0.25); border-color: rgba(124,124,255,0.6); }
.badge.low { background: rgba(51, 225, 237, 0.25); border-color: rgba(51,225,237,0.6); }

.tasks { padding: 16px; }
.tasks-header { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.muted { color: var(--muted); font-size: 12px; }

.new-task { display: grid; grid-template-columns: 1fr 120px 90px; gap: 8px; margin: 12px 0 16px; }
.new-task input, .new-task select, .new-task button {
  border: 1px solid var(--card-border); border-radius: 10px; padding: 10px 12px; background: rgba(255,255,255,0.06); color: var(--text);
}
.new-task input::placeholder { color: var(--muted); }
.primary { background: linear-gradient(135deg, var(--primary), var(--accent)); border: none; font-weight: 700; cursor: pointer; }
.primary:hover { filter: brightness(1.05); }

.task-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.task {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 10px; padding: 10px; border: 1px solid var(--card-border); border-radius: 12px; background: rgba(255,255,255,0.04);
}
.task .title { font-weight: 600; }
.task .meta { display: flex; align-items: center; gap: 8px; }
.task .priority { font-size: 10px; padding: 3px 6px; border-radius: 999px; border: 1px solid var(--card-border); }
.task .priority.high { background: rgba(255, 0, 122, 0.25); border-color: rgba(255,0,122,0.5); }
.task .priority.normal { background: rgba(124, 124, 255, 0.25); border-color: rgba(124,124,255,0.6); }
.task .priority.low { background: rgba(51, 225, 237, 0.25); border-color: rgba(51,225,237,0.6); }
.task .actions { display: flex; gap: 6px; }
.task button { border: 1px solid var(--card-border); background: rgba(255,255,255,0.05); color: var(--text); padding: 6px 8px; border-radius: 8px; cursor: pointer; }
.task button:hover { background: rgba(255,255,255,0.09); }
.task.completed .title { text-decoration: line-through; color: var(--muted); }

.empty { text-align: center; padding: 10px 0 4px; color: var(--muted); }
.empty-emoji { font-size: 34px; margin-bottom: 6px; }

.app-footer { text-align: center; color: var(--muted); font-size: 12px; margin-top: 18px; }

/* Responsive */
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .new-task { grid-template-columns: 1fr; }
  .search input { width: 160px; }
}

/* Light theme */
.light {
  --bg: #f6f7fb;
  --bg-soft: #ffffff;
  --card: rgba(255, 255, 255, 0.75);
  --card-border: rgba(15, 17, 36, 0.1);
  --text: #0f1124;
  --muted: #6b6f85;
  --shadow: 0 10px 30px rgba(0,0,0,0.08);
}
body.light { background: linear-gradient(180deg, #eef0ff 0%, #f7f7fb 100%); }
/* ===== List View Styles ===== */
.list-layout { display: grid; grid-template-columns: 1fr; gap: 20px; }
.list-panel { padding: 16px; }

.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.toolbar .left, .toolbar .right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.toolbar select { border: 1px solid var(--card-border); background: rgba(255,255,255,0.06); color: var(--text); padding: 10px 12px; border-radius: 10px; }

.quick-add { display: grid; grid-template-columns: 1.6fr repeat(2, 130px) 130px 1.2fr 150px 90px; gap: 8px; margin: 12px 0 16px; }
.quick-add input, .quick-add select, .quick-add button { border: 1px solid var(--card-border); border-radius: 10px; padding: 10px 12px; background: rgba(255,255,255,0.06); color: var(--text); }

.advanced-list { display: grid; gap: 8px; }
.group-header { font-weight: 800; letter-spacing: .2px; color: var(--muted); padding: 6px 4px 2px; }

.row { display: grid; grid-template-columns: 36px 1fr auto; align-items: center; gap: 10px; padding: 10px; border: 1px solid var(--card-border); border-radius: 12px; background: rgba(255,255,255,0.04); }
.row .sel { display: flex; align-items: center; justify-content: center; }
.row .main { display: grid; gap: 6px; }
.row .title { font-weight: 700; outline: none; }
.row .chips { display: flex; flex-wrap: wrap; gap: 6px; }
.row .controls { display: flex; gap: 6px; }
.row button.small { border: 1px solid var(--card-border); background: rgba(255,255,255,0.05); color: var(--text); padding: 6px 8px; border-radius: 8px; cursor: pointer; }
.row button.small:hover { background: rgba(255,255,255,0.09); }
.row.completed .title { text-decoration: line-through; color: var(--muted); }

.chip-mini { font-size: 11px; padding: 4px 8px; border-radius: 999px; border: 1px solid var(--card-border); background: rgba(255,255,255,0.06); }
.chip-mini[data-type="priority"] { background: rgba(124, 124, 255, 0.25); }
.chip-mini[data-type="recur"] { background: rgba(51, 225, 237, 0.25); }

.file-label { cursor: pointer; display: inline-flex; align-items: center; }

@media (max-width: 900px) {
  .quick-add { grid-template-columns: 1fr 1fr 1fr 1fr; }
}
@media (max-width: 560px) {
  .quick-add { grid-template-columns: 1fr; }
}

/* Quick Filters */
.quick-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }

/* Snackbar */
.snackbar {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%);
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; border-radius: 12px;
  background: var(--card); border: 1px solid var(--card-border);
  color: var(--text); box-shadow: var(--shadow);
}
.snackbar button {
  border: none; background: transparent; color: var(--accent);
  font-weight: 800; cursor: pointer;
}