:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-2: #101a2d;
  --panel: rgba(10, 20, 34, 0.84);
  --panel-strong: rgba(14, 25, 42, 0.96);
  --text: #f4f7ff;
  --muted: #86a0c7;
  --accent: #6f8dff;
  --accent-2: #35e0c7;
  --border: rgba(255,255,255,0.08);
  --shadow: 0 24px 60px rgba(2, 6, 23, 0.35);
}

body.light {
  color-scheme: light;
  --bg: #f5f7ff;
  --bg-2: #e9eeff;
  --panel: rgba(255,255,255,0.92);
  --panel-strong: rgba(255,255,255,0.97);
  --text: #14213d;
  --muted: #61708e;
  --accent: #4f7cff;
  --accent-2: #29b883;
  --border: rgba(20,33,61,0.08);
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(circle at top left, rgba(111,141,255,0.18), transparent 26%), linear-gradient(135deg, var(--bg), var(--bg-2));
  color: var(--text);
  min-height: 100vh;
}
body::before {
  content: "";
  position: fixed; inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,0.03) 50%, transparent 100%);
  pointer-events: none;
}
button, input, textarea { font: inherit; }

.app-shell { display: grid; grid-template-columns: 280px 1fr; min-height: 100vh; }
.sidebar { padding: 24px 20px; background: rgba(4,10,20,0.5); border-right: 1px solid var(--border); backdrop-filter: blur(16px); }
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.brand-mark { width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center; font-weight: 700; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.brand-mark i { font-size: 1.05rem; }
.brand-title { margin: 0; font-weight: 700; }
.brand-subtitle { margin: 2px 0 0; color: var(--muted); font-size: 0.92rem; }
.nav-list { display: grid; gap: 8px; margin-bottom: 24px; }
.nav-item { color: var(--muted); text-decoration: none; padding: 10px 12px; border-radius: 10px; transition: all 0.2s ease; display: flex; align-items: center; gap: 8px; }
.nav-item i { opacity: 0.9; }
.nav-item.active, .nav-item:hover { color: var(--text); background: rgba(111,141,255,0.16); }
.panel-card, .card, .hero-card, .insight-card { background: var(--panel); border: 1px solid var(--border); border-radius: 22px; box-shadow: var(--shadow); backdrop-filter: blur(18px); }
.panel-card { padding: 16px; }
.panel-label, .eyebrow { font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.25em; color: var(--muted); margin: 0 0 8px; }
.panel-card h3 { margin: 0 0 12px; font-size: 1.04rem; }
.progress-bar { height: 8px; border-radius: 999px; background: rgba(255,255,255,0.1); overflow: hidden; margin-bottom: 8px; }
.progress-bar span { display: block; width: 66%; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.panel-foot { margin: 0; color: var(--muted); font-size: 0.9rem; }
.main { padding: 24px; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 20px; }
.search-box { display: flex; align-items: center; gap: 8px; flex: 1; padding: 10px 12px; border-radius: 999px; background: var(--panel); border: 1px solid var(--border); color: var(--muted); }
.search-box input { flex: 1; border: none; outline: none; background: transparent; color: var(--text); }
.topbar-actions { display: flex; gap: 10px; align-items: center; }
.clock-pill { padding: 8px 12px; border-radius: 999px; border: 1px solid var(--border); background: var(--panel-strong); color: var(--muted); }
.icon-btn, .primary-btn, .ghost-btn, .mode-btn, .task-form button, .chip, .tag-btn, .advance-btn { border: none; cursor: pointer; transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease; }
.icon-btn:hover, .primary-btn:hover, .ghost-btn:hover, .mode-btn:hover, .task-form button:hover, .chip:hover, .tag-btn:hover, .advance-btn:hover { transform: translateY(-1px); }
.icon-btn { width: 38px; height: 38px; border-radius: 50%; background: var(--panel-strong); color: var(--text); }
.view-panel { display: none; }
.view-panel.active { display: block; }
.view-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 16px; }
.view-badge { padding: 8px 12px; border-radius: 999px; background: rgba(111,141,255,0.14); color: var(--accent); font-size: 0.9rem; }
.hero-card { padding: 24px; display: grid; grid-template-columns: 1.35fr 0.8fr; gap: 20px; margin-bottom: 20px; }
.hero-copy h1 { margin: 4px 0 10px; font-size: clamp(1.4rem, 2.2vw, 2rem); }
.hero-copy p { color: var(--muted); line-height: 1.7; max-width: 620px; }
.hero-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.status-pill { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px; background: rgba(255,255,255,0.05); color: var(--muted); border: 1px solid var(--border); }
.status-pill.success { color: var(--accent-2); background: rgba(53, 224, 199, 0.14); }
.hero-actions { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.primary-btn, .ghost-btn { padding: 10px 14px; border-radius: 999px; display: inline-flex; align-items: center; gap: 8px; }
.primary-btn { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: white; }
.ghost-btn { background: var(--panel-strong); color: var(--text); }
.hero-aside { display: grid; gap: 10px; }
.metric-card { padding: 14px; border-radius: 16px; background: linear-gradient(135deg, rgba(111,141,255,0.18), rgba(53,224,199,0.16)); display: flex; justify-content: space-between; align-items: center; }
.metric-card strong { font-size: 1.15rem; }
.metric-card span { color: var(--muted); }
.insight-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-bottom: 20px; }
.insight-card { padding: 16px 18px; }
.insight-title { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 0.9rem; margin-bottom: 8px; }
.insight-card strong { display: block; font-size: 1.02rem; margin-bottom: 6px; }
.insight-card p { margin: 0; color: var(--muted); font-size: 0.92rem; line-height: 1.6; }
.stack-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 20px; }
.stack-column { display: grid; gap: 16px; }
.card { padding: 18px; }
.card-wide { min-height: 320px; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; }
.card-head h3 { margin: 0; display: flex; align-items: center; gap: 8px; color: var(--text); }
.card-head h3 i { color: var(--accent); }
.card-head span { color: var(--muted); font-size: 0.86rem; }
.pill { display: inline-flex; padding: 4px 8px; border-radius: 999px; background: rgba(111,141,255,0.16); color: var(--accent); }
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { padding: 6px 10px; border-radius: 999px; background: rgba(255,255,255,0.06); color: var(--muted); border: 1px solid transparent; }
.chip.active { background: rgba(111,141,255,0.18); color: var(--accent); }
.task-form { display: flex; gap: 8px; margin-bottom: 12px; }
.task-form input, textarea { flex: 1; border: 1px solid var(--border); background: rgba(255,255,255,0.06); color: var(--text); padding: 10px 12px; border-radius: 10px; }
.task-form button { width: 42px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: white; }
.task-list, .habit-list, .agenda-list, .milestone-list, .resource-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.task-item, .habit-item, .agenda-list li, .milestone-list li, .resource-list li { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--border); }
.task-item:last-child, .habit-item:last-child, .agenda-list li:last-child, .milestone-list li:last-child, .resource-list li:last-child { border-bottom: none; }
.task-item { gap: 10px; cursor: grab; border-radius: 10px; padding: 10px; background: rgba(255,255,255,0.03); }
.task-item.dragging { opacity: 0.5; }
.task-item label { display: flex; align-items: flex-start; gap: 8px; flex: 1; }
.task-item .drag-handle { color: var(--muted); padding-top: 2px; }
.task-item .task-details { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.task-item .task-title { color: var(--text); line-height: 1.5; }
.task-item .task-meta { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; color: var(--muted); font-size: 0.82rem; }
.priority-pill { display: inline-flex; padding: 3px 8px; border-radius: 999px; font-size: 0.76rem; font-weight: 600; }
.priority-pill.high { background: rgba(255, 107, 107, 0.16); color: #ff8d8d; }
.priority-pill.medium { background: rgba(111,141,255,0.16); color: var(--accent); }
.priority-pill.low { background: rgba(53,224,199,0.16); color: var(--accent-2); }
.task-item button { background: transparent; color: var(--muted); border: none; cursor: pointer; }
.task-item.done .task-title { text-decoration: line-through; color: var(--muted); }
.task-item.done .task-meta { color: var(--muted); opacity: 0.8; }
.project-board { display: grid; gap: 12px; }
.project-card { padding: 14px; border: 1px solid var(--border); border-radius: 16px; background: rgba(255,255,255,0.04); }
.project-card header { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 8px; }
.project-card .project-title { color: var(--text); font-weight: 600; }
.project-card .project-tag { color: var(--muted); font-size: 0.82rem; }
.project-card .progress { height: 6px; border-radius: 999px; background: rgba(255,255,255,0.08); overflow: hidden; margin: 8px 0; }
.project-card .progress span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.project-card footer { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 0.9rem; }
.advance-btn { padding: 6px 10px; border-radius: 999px; background: rgba(111,141,255,0.14); color: var(--accent); }
.habit-item strong, .milestone-list strong, .resource-list strong { color: var(--text); }
.habit-item span, .milestone-list span, .resource-list span, .agenda-list span { color: var(--muted); font-size: 0.9rem; }
.tag-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.tag-btn { padding: 6px 10px; border-radius: 999px; background: rgba(255,255,255,0.06); color: var(--muted); }
.mode-row { display: flex; gap: 8px; margin-bottom: 14px; }
.mode-btn { flex: 1; padding: 8px; border-radius: 10px; background: rgba(255,255,255,0.08); color: var(--text); }
.mode-btn.active { background: rgba(111,141,255,0.24); color: var(--accent); }
.timer-display { text-align: center; font-size: clamp(2.4rem, 4vw, 4rem); font-weight: 700; margin: 10px 0 16px; }
.timer-actions { display: flex; gap: 10px; flex-wrap: wrap; }
textarea { width: 100%; min-height: 150px; resize: vertical; }
.toast { position: fixed; right: 24px; bottom: 24px; padding: 12px 16px; border-radius: 999px; background: rgba(10,20,34,0.95); color: white; opacity: 0; transform: translateY(10px); transition: all 0.2s ease; pointer-events: none; }
.toast.show { opacity: 1; transform: translateY(0); }
@media (max-width: 920px) { .app-shell { grid-template-columns: 1fr; } .sidebar { border-right: none; border-bottom: 1px solid var(--border); } .hero-card, .stack-grid { grid-template-columns: 1fr; } .insight-strip { grid-template-columns: 1fr; } }