/* Learning-focused palette — blues/greens/teal primary, warm orange/yellow accents */
:root {
  /* Surfaces */
  --bg: #f0f7f8;
  --surface: #ffffff;
  --surface2: #e6f0f2;
  --border: #cfe0e4;
  --border-strong: #b5cdd3;
  /* Text */
  --text: #0f2a3a;
  --muted: #4a6570;
  --faint: #7a929c;
  /* Primary: blue — trust & focus */
  --blue: #2563eb;
  --blue-deep: #1d4ed8;
  --primary: #2563eb;
  --primary-dim: #1d4ed8;
  --primary-fg: #ffffff;
  /* Growth: green — calm & progress */
  --green: #059669;
  --green-soft: #10b981;
  --leaf: #059669;
  /* Bridge: teal */
  --teal: #0d9488;
  --lagoon: #0d9488;
  /* Warm accents — energy & motivation */
  --orange: #f59e0b;
  --orange-deep: #d97706;
  --yellow: #eab308;
  --gold: #eab308;
  --accent-warm: #f59e0b;
  /* Other */
  --danger: #dc2626;
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --shadow-soft: 0 8px 30px -12px color-mix(in srgb, #0f2a3a 12%, transparent);
  --shadow-glow: 0 12px 40px -12px color-mix(in srgb, #2563eb 35%, transparent);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.45;
}
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 960px; margin: 0 auto; padding: 24px 20px 48px; }
.topnav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; border-bottom: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  background: color-mix(in srgb, var(--surface) 85%, transparent);
  backdrop-filter: blur(12px); position: sticky; top: 0; z-index: 10;
}
.topnav::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue) 0%, var(--teal) 40%, var(--green) 70%, var(--orange) 100%);
  opacity: 0.95;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 15px; color: var(--blue-deep); }
.brand img { height: 36px; width: 36px; object-fit: contain; }
.brand span { color: var(--faint); font-weight: 500; margin-left: 4px; font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; }
.navlinks { display: flex; gap: 6px; font-size: 14px; align-items: center; }
.navlinks a {
  color: var(--muted); text-decoration: none; padding: 6px 12px; border-radius: 999px;
}
.navlinks a:hover { color: var(--text); background: color-mix(in srgb, white 70%, transparent); }
.navlinks a.active {
  color: var(--blue-deep); background: white; border: 1px solid var(--border); box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
.badge {
  display: inline-block; font-size: 11px; font-weight: 600;
  padding: 3px 8px; border-radius: 999px; background: color-mix(in srgb, var(--blue) 10%, white);
  color: var(--blue-deep); border: 1px solid color-mix(in srgb, var(--blue) 25%, transparent);
  text-transform: uppercase; letter-spacing: 0.04em;
}
.badge.example {
  color: var(--orange-deep); border-color: color-mix(in srgb, var(--orange) 35%, transparent);
  background: color-mix(in srgb, var(--orange) 12%, white);
}
.badge.live {
  color: var(--green); border-color: color-mix(in srgb, var(--green) 25%, transparent);
  background: color-mix(in srgb, var(--green) 10%, white);
}
.badge.muted-badge {
  color: var(--muted); border-color: var(--border); background: var(--surface2);
}
h1 { font-size: 28px; margin: 8px 0 8px; letter-spacing: -0.02em; color: var(--blue-deep); }
h2 { font-size: 18px; margin: 0 0 12px; color: var(--blue-deep); }
.sub { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 20px; margin-bottom: 16px;
  box-shadow: var(--shadow-soft);
}
.grid { display: grid; gap: 14px; }
.grid.weeks { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
.week-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 16px; display: flex; flex-direction: column; gap: 8px;
  transition: border-color 0.15s, transform 0.15s; box-shadow: 0 1px 2px rgba(0,0,0,0.03);
  color: inherit; text-decoration: none;
}
.week-card:hover { border-color: color-mix(in srgb, var(--teal) 45%, var(--border)); transform: translateY(-2px); text-decoration: none; }
.week-card .n { font-size: 11px; color: var(--teal); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
.week-card .t { font-size: 15px; font-weight: 600; color: var(--text); }
.week-card .status { font-size: 12px; }
.week-card .status.open { color: var(--green); font-weight: 600; }
.week-card .status.locked { color: var(--faint); }
.week-card.locked { opacity: 0.55; pointer-events: none; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 12px 18px; border-radius: 10px; border: none;
  font-weight: 600; font-size: 14px; cursor: pointer; text-decoration: none;
}
.btn-primary {
  background: var(--primary); color: var(--primary-fg); box-shadow: var(--shadow-glow);
}
.btn-primary:hover { background: var(--primary-dim); text-decoration: none; filter: none; }
.btn-ghost {
  background: color-mix(in srgb, white 70%, transparent); color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover { border-color: color-mix(in srgb, var(--teal) 45%, var(--border)); background: white; text-decoration: none; }
.btn-block { width: 100%; }
.progress { display: flex; gap: 6px; flex-wrap: wrap; margin: 16px 0 20px; }
.pill {
  width: 36px; height: 36px; border-radius: 999px; display: flex;
  align-items: center; justify-content: center; font-size: 12px; font-weight: 700;
  border: 1px solid var(--border); background: var(--surface2); color: var(--faint);
}
.pill.done { background: color-mix(in srgb, var(--green) 12%, white); color: var(--green); border-color: color-mix(in srgb, var(--green) 30%, transparent); }
.pill.now { background: color-mix(in srgb, var(--blue) 12%, white); color: var(--blue-deep); border-color: color-mix(in srgb, var(--blue) 40%, transparent); }
.login-shell {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 24px;
  background:
    radial-gradient(ellipse at 15% 10%, color-mix(in srgb, var(--blue) 16%, transparent), transparent 55%),
    radial-gradient(ellipse at 85% 15%, color-mix(in srgb, var(--teal) 14%, transparent), transparent 50%),
    radial-gradient(ellipse at 50% 95%, color-mix(in srgb, var(--green) 12%, transparent), transparent 50%),
    radial-gradient(ellipse at 90% 80%, color-mix(in srgb, var(--orange) 10%, transparent), transparent 45%),
    var(--bg);
}
.login-card { width: 100%; max-width: 400px; }
label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
input {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--border-strong);
  background: white; color: var(--text); font-size: 15px; margin-bottom: 14px;
}
input:focus { outline: 2px solid color-mix(in srgb, var(--blue) 50%, transparent); border-color: transparent; }
.assist {
  border-left: 3px solid var(--orange); padding: 12px 14px;
  background: color-mix(in srgb, var(--orange) 8%, white);
  border-radius: 0 10px 10px 0; font-size: 13px; color: var(--muted); margin: 16px 0;
}
.assist strong { color: var(--text); display: block; margin-bottom: 4px; font-size: 13px; }
.goals { list-style: none; }
.goals li {
  padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 14px;
  padding-left: 28px; position: relative; color: var(--muted);
}
.goals li::before {
  content: ""; position: absolute; left: 0; top: 14px; width: 14px; height: 14px;
  border: 2px solid var(--green); border-radius: 4px;
}
.lesson {
  display: flex; gap: 12px; align-items: flex-start; padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.lesson .num {
  flex-shrink: 0; width: 28px; height: 28px; border-radius: 8px;
  background: color-mix(in srgb, var(--blue) 12%, white); color: var(--blue-deep);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; border: 1px solid color-mix(in srgb, var(--blue) 20%, transparent);
}
.meta { font-size: 12px; color: var(--muted); margin-top: 4px; }
.footer-note { font-size: 12px; color: var(--faint); margin-top: 32px; text-align: center; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.spacer { flex: 1; }
.gradient-text {
  background: linear-gradient(90deg, var(--blue), var(--teal), var(--green));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.continue, .banner {
  background: linear-gradient(135deg, color-mix(in srgb, var(--blue) 8%, white), color-mix(in srgb, var(--green) 8%, white));
  border: 1px solid color-mix(in srgb, var(--teal) 30%, var(--border));
  border-radius: 16px; padding: 18px; margin-bottom: 20px;
}
.tag {
  display: inline-block; font-size: 11px; padding: 3px 8px; border-radius: 6px;
  background: color-mix(in srgb, var(--yellow) 18%, white); color: #a16207;
  border: 1px solid color-mix(in srgb, var(--yellow) 40%, transparent); margin-bottom: 8px; font-weight: 700;
}

/* Premium upgrade dock — persistent on every page; name + price + Learn More only */
body { padding-bottom: 88px; }
.upgrade-dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom, 0));
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  box-shadow: 0 -8px 24px color-mix(in srgb, #0f2a3a 10%, transparent);
}
.upgrade-tab {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 12px; border-radius: 12px; text-decoration: none; color: inherit;
  border: 1px solid var(--border); background: var(--surface);
  transition: border-color 0.15s, transform 0.15s;
}
.upgrade-tab:hover { text-decoration: none; transform: translateY(-1px); }
.upgrade-tab.one-on-one {
  border-color: color-mix(in srgb, var(--blue) 35%, var(--border));
  background: color-mix(in srgb, var(--blue) 6%, white);
}
.upgrade-tab.hand-holding {
  border-color: color-mix(in srgb, var(--orange) 40%, var(--border));
  background: color-mix(in srgb, var(--orange) 8%, white);
}
.upgrade-tab .ut-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.upgrade-tab .ut-name { font-size: 13px; font-weight: 700; color: var(--text); }
.upgrade-tab .ut-price { font-size: 15px; font-weight: 800; color: var(--blue-deep); }
.upgrade-tab.hand-holding .ut-price { color: var(--orange-deep); }
.upgrade-tab .ut-cta {
  flex-shrink: 0; font-size: 12px; font-weight: 700; padding: 8px 12px;
  border-radius: 8px; border: none; cursor: pointer; text-decoration: none;
  background: var(--blue); color: #fff;
}
.upgrade-tab.hand-holding .ut-cta { background: var(--orange-deep); color: #fff; }
.upgrade-tab:hover .ut-cta { filter: brightness(1.05); }
@media (max-width: 560px) {
  .upgrade-dock { grid-template-columns: 1fr; }
  body { padding-bottom: 160px; }
}
.upgrade-label {
  font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--faint); margin-bottom: 2px;
}

/* Photo-rich week capsules & module pages */
.week-card { overflow: hidden; padding: 0; }
.week-card .week-shot {
  display: block; width: 100%; height: 110px; object-fit: cover;
  background: var(--surface2);
}
.week-card .week-body { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 6px; }
.week-card.locked .week-shot { filter: grayscale(0.85) brightness(0.9); opacity: 0.75; }
.module-hero {
  width: 100%; height: 220px; object-fit: cover; border-radius: 16px;
  margin: 8px 0 18px; border: 1px solid var(--border); box-shadow: var(--shadow-soft);
}
.photo-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 14px 0 18px;
}
.photo-row img {
  width: 100%; height: 140px; object-fit: cover; border-radius: 12px;
  border: 1px solid var(--border);
}
.photo-caption { font-size: 11px; color: var(--faint); margin-top: -10px; margin-bottom: 14px; }
@media (max-width: 640px) {
  .photo-row { grid-template-columns: 1fr; }
  .module-hero { height: 160px; }
}


/* ---- Lesson quiz / lock UI ---- */
.lesson[data-lesson] { flex-wrap: wrap; }
.lesson .lesson-main { flex: 1; min-width: 0; }
.lesson-title { font-weight: 600; }
.lesson-teaching { font-size: 13px; color: var(--muted); margin-top: 8px; }
.lesson-locked { opacity: 0.85; background: color-mix(in srgb, var(--surface2) 70%, white); border-radius: 12px; padding: 12px; margin: 4px 0; }
.lesson-lock-note {
  margin-top: 10px; font-size: 13px; font-weight: 600; color: var(--orange-deep);
  background: color-mix(in srgb, var(--orange) 10%, white);
  border: 1px solid color-mix(in srgb, var(--orange) 30%, transparent);
  border-radius: 8px; padding: 10px 12px;
}
.lesson-pass-badge { margin-left: 8px; vertical-align: middle; }
.lesson-passed .lesson-teaching { opacity: 0.95; }
.lesson-quiz {
  margin-top: 14px; padding: 14px; border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--blue) 25%, var(--border));
  background: color-mix(in srgb, var(--blue) 4%, white);
}
.lesson-quiz .quiz-title { font-size: 15px; color: var(--blue-deep); margin: 0 0 4px; }
.lesson-quiz .quiz-meta { margin-bottom: 12px; }
.quiz-q { margin: 12px 0; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.quiz-q:last-of-type { border-bottom: none; }
.quiz-q-text { font-size: 14px; color: var(--text); margin-bottom: 8px; }
.quiz-choices { display: flex; flex-direction: column; gap: 6px; }
.quiz-choice {
  display: flex; gap: 8px; align-items: flex-start; font-size: 13px; color: var(--muted);
  padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border); background: white; cursor: pointer;
}
.quiz-choice:hover { border-color: color-mix(in srgb, var(--teal) 40%, var(--border)); }
.quiz-choice input { margin-top: 2px; flex-shrink: 0; width: auto; }
.quiz-choice.quiz-wrong, .quiz-q.quiz-wrong .quiz-choice:has(input:checked) {
  border-color: color-mix(in srgb, var(--danger) 45%, var(--border));
  background: color-mix(in srgb, var(--danger) 8%, white);
}
.quiz-choice.quiz-right {
  border-color: color-mix(in srgb, var(--green) 45%, var(--border));
  background: color-mix(in srgb, var(--green) 8%, white);
}
.quiz-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 8px; }
.quiz-msg { font-size: 13px; font-weight: 600; }
.quiz-msg.quiz-fail { color: var(--danger); }
.quiz-msg.quiz-ok { color: var(--green); }
.lesson-quiz.quiz-passed { border-color: color-mix(in srgb, var(--green) 35%, var(--border)); background: color-mix(in srgb, var(--green) 6%, white); }


/* ---- Quiz release / live class ---- */
.quiz-wait-note {
  margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--blue-deep);
  background: color-mix(in srgb, var(--blue) 8%, white);
  border: 1px dashed color-mix(in srgb, var(--blue) 35%, var(--border));
  border-radius: 8px; padding: 12px 14px;
}
.lesson-quiz.quiz-just-released {
  animation: quizReleasePulse 1.6s ease-out 1;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--teal) 35%, transparent);
  border-color: color-mix(in srgb, var(--teal) 50%, var(--border));
}
@keyframes quizReleasePulse {
  0% { transform: scale(1); background: color-mix(in srgb, var(--teal) 18%, white); }
  60% { transform: scale(1.01); }
  100% { transform: scale(1); background: color-mix(in srgb, var(--blue) 4%, white); }
}
.live-session-code {
  font-size: 14px; padding: 14px 16px; border-radius: 12px;
  background: var(--surface2); border: 1px solid var(--border); color: var(--muted);
  word-break: break-all;
}
.live-session-code.has-session { color: var(--text); background: color-mix(in srgb, var(--green) 8%, white); border-color: color-mix(in srgb, var(--green) 30%, var(--border)); }
.live-session-id { font-size: 18px; font-weight: 800; letter-spacing: 0.02em; }
.release-grid { display: flex; flex-direction: column; gap: 14px; }
.release-week {
  border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px;
  background: color-mix(in srgb, var(--surface2) 50%, white);
}
.release-week-label { font-weight: 700; font-size: 13px; margin-bottom: 8px; color: var(--blue-deep); }
.release-row {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: space-between;
  padding: 6px 0; border-top: 1px solid var(--border);
}
.release-row:first-of-type { border-top: none; }
.release-title { font-size: 13px; color: var(--text); flex: 1; min-width: 160px; }
.btn.release-toggle { font-size: 12px; padding: 6px 12px; border-radius: 999px; }
.btn.release-toggle.released {
  background: color-mix(in srgb, var(--green) 85%, black);
  color: white; border-color: transparent;
}
.btn.release-toggle:not(.released) {
  background: white; color: var(--blue-deep);
  border: 1px solid color-mix(in srgb, var(--blue) 35%, var(--border));
}


/* ---- Week worksheets / checkpoints ---- */
.ws-table-wrap { overflow-x: auto; margin-bottom: 8px; }
.ws-table {
  width: 100%; border-collapse: collapse; font-size: 13px;
}
.ws-table th, .ws-table td {
  border: 1px solid var(--border); padding: 8px 10px; vertical-align: top; text-align: left;
}
.ws-table th {
  background: var(--surface2); color: var(--blue-deep); font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.ws-table .ws-cat { font-weight: 600; color: var(--text); white-space: nowrap; min-width: 120px; }
.ws-table input, .ws-table select {
  width: 100%; margin-bottom: 0; font-size: 13px; padding: 8px 10px;
}
.ws-row { margin-bottom: 12px; }
.ws-row label { margin-top: 4px; }
.ws-row input, .ws-row textarea, .ws-row select { margin-bottom: 8px; }
textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--border-strong);
  background: white; color: var(--text); font-size: 14px; font-family: var(--font);
  resize: vertical; line-height: 1.4;
}
textarea:focus { outline: 2px solid color-mix(in srgb, var(--blue) 50%, transparent); border-color: transparent; }
select {
  width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border-strong);
  background: white; color: var(--text); font-size: 14px; margin-bottom: 8px;
}
select:focus { outline: 2px solid color-mix(in srgb, var(--blue) 50%, transparent); border-color: transparent; }
.ws-stage {
  border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px;
  margin-bottom: 10px; background: color-mix(in srgb, var(--surface2) 40%, white);
}
.ws-stage-head {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  justify-content: space-between; margin-bottom: 8px;
}
.ws-messup {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px;
  color: var(--muted); margin: 0; cursor: pointer; width: auto;
}
.ws-messup input { width: auto; margin: 0; }
.ws-actions .spacer { flex: 1; min-width: 8px; }
@media print {
  .topnav, .upgrade-dock, .ws-actions, .navlinks { display: none !important; }
  .wrap { max-width: none; padding: 0; }
  .card { box-shadow: none; break-inside: avoid; }
}

/* stock lesson figures (CC0, see img/stock/LICENSES.md) */
.lesson-figure{margin:14px 0 0;padding:0}
.lesson-figure img{display:block;width:100%;height:auto;max-height:340px;object-fit:cover;border-radius:10px}
.lesson-figure figcaption{font-size:13px;color:var(--muted);margin-top:6px;line-height:1.4}

.ws-figure{margin:0 0 14px}
.photo-credit{opacity:.8}
.quiz-q-img{display:block;width:100%;max-width:420px;height:auto;max-height:220px;object-fit:cover;border-radius:8px;margin:8px 0}