:root {
  color-scheme: light;
  font-family: Inter, "Segoe UI", sans-serif;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --border: #d8e1ea;
  --text: #17212d;
  --muted: #64748b;
  --accent: #4f46e5;
  --accent-soft: #ede9fe;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
button, input, select { font: inherit; }
.app-shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar { background: #111827; color: white; padding: 1.4rem; display: flex; flex-direction: column; gap: 1.2rem; }
.eyebrow, .section-label { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.74rem; color: #818cf8; }
.sidebar h1 { margin: 0.3rem 0 0.4rem; font-size: 1.45rem; }
.sidebar-copy { color: #cbd5e1; line-height: 1.5; }
.nav-list { display: grid; gap: 0.45rem; }
.nav-item { background: transparent; border: 1px solid transparent; color: #e5e7eb; text-align: left; padding: 0.8rem 0.9rem; border-radius: 12px; }
.nav-item.active { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.2); }
.content { padding: 1.3rem; display: flex; flex-direction: column; gap: 1rem; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 0.8rem; }
.topbar-actions { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.back-link { display: inline-flex; align-items: center; }
.ghost-btn, .action-btn { border: 1px solid var(--border); background: var(--surface); color: var(--text); padding: 0.7rem 0.95rem; border-radius: 999px; }
.action-btn { background: var(--accent); color: white; border-color: var(--accent); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 1rem; box-shadow: 0 10px 28px rgba(15, 23, 42, 0.04); }
.cards-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.card.wide { grid-column: span 2; }
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.8rem; }
.pill { display: inline-flex; padding: 0.35rem 0.6rem; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 0.8rem; }
.task-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.75rem; }
.task-list li { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border); padding-bottom: 0.55rem; }
.project-meter { display: flex; justify-content: space-between; padding: 0.6rem 0; border-bottom: 1px solid var(--border); }
.project-list { display: grid; gap: 0.7rem; }
.project-item { display: flex; justify-content: space-between; align-items: center; padding: 0.75rem 0; border-bottom: 1px solid var(--border); }
.kanban { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0.7rem; }
.column { background: var(--bg); border-radius: 16px; padding: 0.7rem; min-height: 140px; }
.column h4 { margin-top: 0; font-size: 0.95rem; }
.task-card { background: white; border: 1px solid var(--border); border-radius: 12px; padding: 0.7rem; margin-bottom: 0.6rem; font-size: 0.92rem; }
.form-grid { display: grid; gap: 0.6rem; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.form-grid input, .form-grid select { padding: 0.7rem 0.8rem; border-radius: 12px; border: 1px solid var(--border); }
.view { display: none; }
.view.active { display: block; }
.toast { position: fixed; right: 1rem; bottom: 1rem; background: #111827; color: white; padding: 0.75rem 1rem; border-radius: 999px; opacity: 0; transform: translateY(10px); transition: 0.2s ease; pointer-events: none; z-index: 20; }
.toast.show { opacity: 1; transform: translateY(0); }
.empty-state { color: var(--muted); font-style: italic; padding: 0.4rem 0; }
@media (max-width: 920px) { .app-shell { grid-template-columns: 1fr; } .cards-grid, .kanban, .form-grid { grid-template-columns: 1fr; } .card.wide { grid-column: auto; } }