@import url('https://fonts.googleapis.com/css2?family=Figtree:wght@300;400;500;600;700&family=Noto+Sans:wght@300;400;500;700&display=swap');

:root {
  --color-primary: #2563EB;
  --color-on-primary: #FFFFFF;
  --color-secondary: #3B82F6;
  --color-accent: #059669;
  --color-background: #F8FAFC;
  --color-foreground: #0F172A;
  --color-muted: #F1F5FD;
  --color-border: #E4ECFC;
  --color-destructive: #DC2626;
  --color-ring: #2563EB;

  --st-none-bg: #F1F5F9;
  --st-none-text: #64748B;
  --st-prog-bg: #FEF3C7;
  --st-prog-text: #B45309;
  --st-done-bg: #D1FAE5;
  --st-done-text: #047857;

  --font-heading: 'Figtree', system-ui, sans-serif;
  --font-body: 'Noto Sans', system-ui, sans-serif;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .05), 0 8px 24px rgba(37, 99, 235, .08);
  --shadow-lift: 0 12px 32px rgba(37, 99, 235, .14);
  --transition: 180ms ease;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-foreground);
  background: linear-gradient(160deg, #eef4ff 0%, #e9f5f1 55%, #eef4ff 100%);
  min-height: 100vh;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: var(--font-heading); margin: 0; letter-spacing: -.01em; }
p { margin: 0; }
.muted { color: #64748B; }

a { color: var(--color-primary); }

button { font-family: inherit; cursor: pointer; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--color-primary); color: #fff;
  padding: 10px 16px; border-radius: 0 0 10px 0; z-index: 100;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 3px solid var(--color-ring); outline-offset: 2px; border-radius: 6px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}
/* ---------- Navbar ---------- */
.navbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(248, 250, 252, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(228, 236, 252, .9);
}
.navbar-inner {
  max-width: 1080px; margin: 0 auto;
  padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-icon {
  width: 44px; height: 44px; flex: none;
  display: grid; place-items: center;
  color: #fff; border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  box-shadow: 0 4px 14px rgba(37, 99, 235, .35);
}
.brand-icon svg { width: 22px; height: 22px; }
.brand-text h1 { font-size: clamp(1.05rem, 2.4vw, 1.35rem); font-weight: 700; }
.brand-text p { font-size: .8rem; color: #64748B; }

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

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border: 1px solid transparent; border-radius: 12px;
  background: var(--color-primary); color: #fff;
  font-weight: 600; font-size: .9rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn svg { width: 17px; height: 17px; }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); background: #1d4ed8; }
.btn.ghost { background: transparent; color: var(--color-foreground); border-color: var(--color-border); }
.btn.ghost:hover { background: var(--color-muted); box-shadow: none; }
/* ---------- Layout & cards ---------- */
.container { max-width: 1080px; margin: 0 auto; padding: 28px 20px 64px; }

.glass {
  background: rgba(255, 255, 255, .78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, .85);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ---------- Overview ---------- */
.overview { padding: 24px; margin-bottom: 28px; }
.overview-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; }
.overview-head h2 { font-size: 1.25rem; }
.overview-stats { display: flex; gap: 10px; flex-wrap: wrap; }
.stat {
  min-width: 88px; text-align: center;
  padding: 10px 14px; border-radius: 12px;
  background: var(--color-muted); border: 1px solid var(--color-border);
}
.stat .num { font-family: var(--font-heading); font-size: 1.3rem; font-weight: 700; display: block; }
.stat .lbl { font-size: .74rem; color: #64748B; text-transform: uppercase; letter-spacing: .04em; }

.progress-track {
  margin-top: 18px; height: 14px; border-radius: 999px;
  background: #E6EDF9; overflow: hidden;
}
.progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 999px;
  transition: width 400ms cubic-bezier(.22, 1, .36, 1);
}
.overview-meta { display: flex; justify-content: space-between; align-items: baseline; margin-top: 10px; }
.overview-meta #modulePct { font-family: var(--font-heading); font-weight: 700; font-size: 1.1rem; color: var(--color-accent); }

.section-head { margin: 34px 0 16px; }
.section-head h2 { font-size: 1.3rem; margin-bottom: 4px; }
/* ---------- Case cards ---------- */
.cases { display: flex; flex-direction: column; gap: 16px; }
.case { padding: 0; overflow: hidden; transition: box-shadow var(--transition); }
.case:hover { box-shadow: var(--shadow-lift); }

.case-head {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 18px 20px;
}
.case-title { display: flex; align-items: center; gap: 12px; }
.case-title h3 { font-size: 1.05rem; }
.case-title .badge {
  font-size: .74rem; font-weight: 600; padding: 3px 9px; border-radius: 999px;
  background: var(--color-muted); color: #475569; border: 1px solid var(--color-border);
}
.case-head-right { display: flex; align-items: center; gap: 12px; }
.case-pct { font-family: var(--font-heading); font-weight: 700; color: var(--color-accent); }
.case-task-count { font-size: .8rem; color: #64748B; white-space: nowrap; }

.components { display: flex; flex-wrap: wrap; gap: 10px; padding: 0 20px 18px; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; border: 1px solid transparent; border-radius: 999px;
  font-size: .85rem; font-weight: 600; color: var(--st-none-text); background: var(--st-none-bg);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.pill .dot { width: 9px; height: 9px; border-radius: 50%; background: currentColor; }
.pill:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(15, 23, 42, .12); }
.pill[data-status="In progress"] { background: var(--st-prog-bg); color: var(--st-prog-text); }
.pill[data-status="Complete"] { background: var(--st-done-bg); color: var(--st-done-text); }

.case-toggle {
  width: 100%; display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px; border: none; border-top: 1px solid var(--color-border);
  background: rgba(241, 245, 253, .55); color: var(--color-primary); font-weight: 600; font-size: .9rem;
  transition: background var(--transition);
}
.case-toggle:hover { background: var(--color-muted); }
.case-toggle .chev { transition: transform var(--transition); }
.case.open .case-toggle .chev { transform: rotate(180deg); }
/* ---------- Lesson plan checklist ---------- */
.checklist { padding: 4px 20px 20px; border-top: 1px solid var(--color-border); }
.checklist[hidden] { display: none; }
.phase { margin-top: 16px; }
.phase-title {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-heading); font-size: .95rem; font-weight: 700; margin-bottom: 8px;
}
.phase-title .phase-count { font-weight: 500; color: #64748B; font-size: .8rem; }
.task-row {
  display: grid; grid-template-columns: minmax(200px, 1.4fr) 140px 1fr 130px 1.4fr;
  gap: 10px; align-items: center; padding: 10px 12px;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: #fff; margin-bottom: 8px;
}
.task-label { font-size: .9rem; display: flex; align-items: center; gap: 8px; }
.task-label .num { color: #94A3B8; font-size: .78rem; font-family: var(--font-heading); min-width: 18px; text-align: right; }
select, input[type="date"], input[type="text"] {
  width: 100%; padding: 8px 10px; border: 1px solid var(--color-border); border-radius: 8px;
  font-family: inherit; font-size: .85rem; color: var(--color-foreground); background: #FBFCFE;
}
select:focus, input:focus { outline: 2px solid var(--color-ring); outline-offset: 0; border-color: var(--color-ring); }
select.st-none { background: var(--st-none-bg); color: var(--st-none-text); }
select.st-prog { background: var(--st-prog-bg); color: var(--st-prog-text); }
select.st-done { background: var(--st-done-bg); color: var(--st-done-text); }
.task-row.checked { background: #F0FDF7; }
.task-row.checked .task-label { color: #334155; }
/* ---------- How-to, footer, toast ---------- */
.how-to { margin-top: 34px; overflow: hidden; }
.how-to-toggle {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px; border: none; background: transparent; color: var(--color-foreground);
  font-size: 1rem;
}
.how-to-toggle > span { display: flex; align-items: center; gap: 10px; }
.how-to-toggle svg { width: 19px; height: 19px; color: var(--color-primary); }
.how-to-toggle .chev { transition: transform var(--transition); }
.how-to-toggle[aria-expanded="true"] .chev { transform: rotate(180deg); }
.how-to-body { padding: 0 20px 20px; }
.how-to-body ol { margin: 0; padding-left: 22px; }
.how-to-body li { margin-bottom: 10px; }
.how-to-body strong { color: var(--color-primary); }

.footer { text-align: center; padding: 24px 20px 40px; color: #64748B; font-size: .85rem; }

.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: var(--color-foreground); color: #fff;
  padding: 12px 20px; border-radius: 12px; font-size: .9rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, .3);
  opacity: 0; pointer-events: none; transition: opacity 220ms ease, transform 220ms ease;
  z-index: 200;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .task-row { grid-template-columns: 1fr 130px; }
  .task-row .t-owner, .task-row .t-due, .task-row .t-notes { grid-column: span 1; }
}
@media (max-width: 640px) {
  .navbar-actions .btn span { display: none; }
  .navbar-actions .btn { padding: 10px 12px; }
  .components { gap: 8px; }
  .task-row { grid-template-columns: 1fr; gap: 8px; }
  .task-label .num { min-width: auto; }
  .overview-head { flex-direction: column; }
}
/* ---------- Badge status colors ---------- */
.badge.st-none { background: var(--st-none-bg); color: var(--st-none-text); border-color: #E2E8F0; }
.badge.st-prog { background: var(--st-prog-bg); color: var(--st-prog-text); border-color: #FDE68A; }
.badge.st-done { background: var(--st-done-bg); color: var(--st-done-text); border-color: #A7F3D0; }

.pill-state { font-weight: 500; opacity: .85; }