:root {
  --bg: #0b0f17;
  --panel: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: #1f2937;
  --accent: #22c55e;
  --danger: #ef4444;
  --warn: #f59e0b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app-header {
  padding: 24px 16px 8px;
  text-align: center;
}
.app-header h1 { margin: 0; font-size: 32px; letter-spacing: 0.5px; }
.subtitle { margin: 6px 0 0; color: var(--muted); }

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 16px;
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .container { grid-template-columns: 1.2fr 0.8fr; align-items: start; }
  .focus-panel { grid-column: 2; grid-row: 1 / span 2; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}

.section-title { margin: 0 0 12px; font-size: 18px; }

.task-form {
  display: flex;
  gap: 10px;
}
.task-form input {
  flex: 1;
  padding: 12px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0f172a;
  color: var(--text);
  outline: none;
}
.task-form button {
  padding: 12px 14px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #07130b;
  font-weight: 700;
  cursor: pointer;
}

.toolbar {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.filters button {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 8px 10px;
  border-radius: 999px;
  cursor: pointer;
}
.filters button.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(34,197,94,0.15);
}

.stats { color: var(--muted); font-size: 14px; }

.task-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.task {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  display: grid;
  gap: 10px;
}
.task-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}
.task-title {
  display: flex;
  gap: 10px;
  align-items: center;
}
.task-title input[type="checkbox"] { transform: scale(1.2); }
.task-title span { font-weight: 650; }

.badges { display: flex; gap: 6px; flex-wrap: wrap; }
.badge {
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}
.badge.ok { border-color: rgba(34,197,94,0.5); color: var(--accent); }

.task-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.task-actions button {
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0f172a;
  color: var(--text);
  cursor: pointer;
}
.task-actions .danger { border-color: rgba(239,68,68,0.4); color: #fecaca; }
.task.completed .task-title span {
  text-decoration: line-through;
  color: var(--muted);
}

.muted { color: var(--muted); }
.error { color: #fecaca; margin: 10px 0 0; }
.hidden { display: none; }

.focus-box {
  display: grid;
  gap: 12px;
}
.focus-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: #0f172a;
}
.focus-time {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: 1px;
}
.progress {
  height: 10px;
  border-radius: 999px;
  background: #0b1224;
  border: 1px solid var(--border);
  overflow: hidden;
}
.progress > div {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 0.25s linear;
}