/* Code Club — self-contained styles (no Tailwind dependency). */

:root {
  --bg: #0f172a;          /* slate-900 backdrop */
  --panel: #ffffff;
  --ink: #1e293b;
  --muted: #64748b;
  --line: #e2e8f0;
  --brand: #7c3aed;       /* violet-600 */
  --brand-dark: #6d28d9;
  --accent: #f59e0b;      /* amber */
  --ok: #16a34a;
  --ok-soft: #dcfce7;
  --err: #dc2626;
  --err-soft: #fee2e2;
  --code-bg: #0b1220;
  --code-ink: #e2e8f0;
  --safe-b: env(safe-area-inset-bottom);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 500px at 10% -10%, #312e81 0%, transparent 55%),
    radial-gradient(1000px 480px at 110% 0%, #7c3aed33 0%, transparent 50%),
    var(--bg);
  color: var(--ink);
  font-family: 'Fredoka', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

h1, h2, h3, .brandword { font-family: 'Baloo 2', 'Fredoka', system-ui, sans-serif; }

.wrap { max-width: 900px; margin: 0 auto; padding: 0 16px 48px; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 12px;
  max-width: 900px; margin: 0 auto; padding: 12px 16px;
  backdrop-filter: blur(8px);
}
.topbar .logo { display: flex; align-items: center; gap: 8px; color: #fff; font-weight: 800; font-size: 20px; white-space: nowrap; flex-shrink: 0; }
.topbar .logo .mark { font-size: 24px; }
.topbar .spacer { flex: 1; }
.stars-chip {
  background: rgba(255,255,255,.14); color: #fde68a; font-weight: 800;
  border-radius: 999px; padding: 6px 14px; font-size: 15px; white-space: nowrap;
}
.btn-register {
  background: var(--accent); color: #1f2937; font-weight: 800;
  border: none; border-radius: 999px; padding: 8px 16px; font-size: 14px;
  text-decoration: none; box-shadow: 0 6px 16px rgba(245,158,11,.35); white-space: nowrap;
  cursor: pointer; transition: transform .12s ease;
}
.btn-register:active { transform: scale(.96); }

/* ---------- Screens ---------- */
.screen { display: none; }
.screen.active { display: block; animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- Home ---------- */
.hero { text-align: center; color: #fff; padding: 18px 8px 26px; }
.hero .emoji { font-size: 56px; }
.hero h1 { font-size: 40px; margin: 6px 0 6px; }
.hero p { font-size: 18px; color: #c7d2fe; margin: 0 auto; max-width: 560px; }
.free-pill {
  display: inline-block; margin-top: 14px; background: #22c55e; color: #052e16;
  font-weight: 800; border-radius: 999px; padding: 6px 16px; font-size: 14px;
}

.card-grid { display: grid; grid-template-columns: 1fr; gap: 16px; margin-top: 22px; }
@media (min-width: 640px) { .card-grid { grid-template-columns: 1fr 1fr; } }

.lang-card {
  text-align: left; background: var(--panel); border: none; border-radius: 22px;
  padding: 22px; cursor: pointer; box-shadow: 0 14px 40px rgba(2,6,23,.45);
  display: flex; flex-direction: column; gap: 6px; transition: transform .14s ease;
}
.lang-card:active { transform: scale(.98); }
.lang-card .lc-top { display: flex; align-items: center; gap: 12px; }
.lang-card .lc-emoji { font-size: 40px; }
.lang-card h3 { margin: 0; font-size: 26px; color: var(--ink); }
.lang-card .lc-tag { color: var(--brand); font-weight: 700; font-size: 15px; }
.lang-card .lc-blurb { color: var(--muted); font-size: 14px; margin: 4px 0 8px; line-height: 1.5; }
.lang-card .lc-progress { font-size: 13px; font-weight: 700; color: var(--muted); }
.lang-card .lc-go {
  align-self: flex-start; margin-top: 6px; background: var(--brand); color: #fff;
  font-weight: 800; border-radius: 999px; padding: 8px 18px; font-size: 14px;
}

/* Registration promo card */
.promo {
  margin-top: 22px; background: linear-gradient(120deg, #4c1d95, #7c3aed);
  color: #fff; border-radius: 22px; padding: 24px; text-align: center;
  box-shadow: 0 14px 40px rgba(76,29,149,.45);
}
.promo h3 { margin: 0 0 6px; font-size: 24px; }
.promo p { margin: 0 auto 16px; max-width: 520px; color: #ede9fe; font-size: 15px; line-height: 1.55; }
.promo .btn-big {
  display: inline-block; background: #fff; color: var(--brand-dark); font-weight: 800;
  text-decoration: none; border-radius: 999px; padding: 12px 26px; font-size: 16px;
  box-shadow: 0 8px 20px rgba(0,0,0,.25);
}
.promo small { display: block; margin-top: 10px; color: #ddd6fe; font-size: 12px; }

.footnote { text-align: center; color: #94a3b8; font-size: 13px; margin-top: 26px; }
.footnote a { color: #c4b5fd; }

/* ---------- Lessons list ---------- */
.subhead { display: flex; align-items: center; gap: 12px; color: #fff; padding: 6px 0 14px; }
.btn-back {
  background: rgba(255,255,255,.16); color: #fff; border: none; border-radius: 999px;
  padding: 8px 16px; font-weight: 800; font-size: 14px; cursor: pointer;
}
.subhead h2 { margin: 0; font-size: 24px; }
.subhead .count { color: #c7d2fe; font-size: 14px; font-weight: 700; }

.lesson-list { display: grid; gap: 12px; }
.lesson-item {
  display: flex; align-items: center; gap: 14px; text-align: left; width: 100%;
  background: var(--panel); border: none; border-radius: 16px; padding: 16px;
  cursor: pointer; box-shadow: 0 8px 24px rgba(2,6,23,.35); transition: transform .12s ease;
}
.lesson-item:active { transform: scale(.99); }
.lesson-item.locked { opacity: .55; cursor: not-allowed; }
.lesson-item .li-emoji {
  font-size: 26px; width: 46px; height: 46px; flex: none; border-radius: 12px;
  display: grid; place-items: center; background: #f1f5f9;
}
.lesson-item .li-body { flex: 1; }
.lesson-item .li-title { font-weight: 800; color: var(--ink); font-size: 16px; }
.lesson-item .li-sub { color: var(--muted); font-size: 13px; }
.lesson-item .li-state { font-size: 20px; flex: none; }

/* ---------- Lesson screen ---------- */
.lesson-head { display: flex; align-items: center; gap: 12px; color: #fff; padding: 6px 0 14px; }
.lesson-head h2 { margin: 0; font-size: 20px; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lesson-head .pos { color: #c7d2fe; font-weight: 800; font-size: 14px; flex-shrink: 0; }
.lesson-head .btn-back, .subhead .btn-back { flex-shrink: 0; }

.explain {
  background: #eef2ff; border: 1px solid #e0e7ff; border-radius: 16px;
  padding: 16px 18px; color: #3730a3; margin-bottom: 14px;
}
.explain .ex-title { font-weight: 800; font-size: 17px; margin-bottom: 6px; color: #4338ca; }
.explain ul { margin: 0; padding-left: 18px; }
.explain li { margin: 4px 0; line-height: 1.5; font-size: 15px; }
.goal {
  background: #fffbeb; border: 1px solid #fde68a; border-radius: 12px;
  padding: 10px 14px; color: #92400e; font-weight: 700; font-size: 15px; margin-bottom: 14px;
}
.goal b { color: #b45309; }

.editor-wrap { display: grid; gap: 14px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .editor-wrap { grid-template-columns: 1fr 1fr; align-items: stretch; } }

.pane { background: var(--panel); border-radius: 16px; overflow: hidden; box-shadow: 0 10px 30px rgba(2,6,23,.35); display: flex; flex-direction: column; }
.pane-label {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; font-weight: 800; font-size: 13px; color: var(--muted);
  border-bottom: 1px solid var(--line); background: #f8fafc;
}
.pane-label .dots { color: #cbd5e1; letter-spacing: 2px; }

textarea.code {
  width: 100%; min-height: 220px; resize: vertical; border: none; outline: none;
  background: var(--code-bg); color: var(--code-ink);
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px; line-height: 1.65; padding: 14px; tab-size: 2; white-space: pre;
}

.blockly { width: 100%; height: 340px; background: #f8fafc; position: relative; }
.bl-loading { padding: 28px; text-align: center; color: var(--muted); font-weight: 700; }
.bl-loading.err { color: var(--err); }

.output { flex: 1; min-height: 220px; display: flex; flex-direction: column; }
.console {
  flex: 1; min-height: 200px; margin: 0; padding: 14px; overflow: auto;
  background: var(--code-bg); color: #86efac;
  font-family: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
  font-size: 14px; line-height: 1.6; white-space: pre-wrap; word-break: break-word;
}
.console .empty { color: #64748b; }
.console .err { color: #fca5a5; }
iframe.preview { flex: 1; min-height: 200px; width: 100%; border: none; background: #fff; }

.sqlout {
  flex: 1; min-height: 200px; padding: 12px; overflow: auto; background: #fff;
  font-family: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace; font-size: 13px;
}
.sqlout .empty { color: #94a3b8; }
.sqlout .err { color: var(--err); font-weight: 700; }
.sqlout table { border-collapse: collapse; width: 100%; }
.sqlout th, .sqlout td { border: 1px solid var(--line); padding: 6px 10px; text-align: left; }
.sqlout th { background: #eef2ff; color: #3730a3; font-weight: 800; }
.sqlout tr:nth-child(even) td { background: #f8fafc; }
.sqlout .rowcount { margin-top: 8px; color: var(--muted); font-weight: 700; }

.controls { display: flex; gap: 10px; margin: 16px 0 10px; flex-wrap: wrap; }
.btn {
  border: none; border-radius: 999px; padding: 12px 22px; font-size: 16px; font-weight: 800;
  cursor: pointer; transition: transform .12s ease; font-family: inherit;
}
.btn:active { transform: scale(.97); }
.btn-run { background: var(--ok); color: #fff; box-shadow: 0 8px 20px rgba(22,163,74,.35); }
.btn-ghost { background: rgba(255,255,255,.14); color: #fff; }

.result { border-radius: 14px; padding: 14px 16px; font-weight: 700; margin-top: 4px; display: none; }
.result.show { display: block; animation: fade .2s ease; }
.result.ok { background: var(--ok-soft); color: #166534; border: 1px solid #bbf7d0; }
.result.no { background: var(--err-soft); color: #991b1b; border: 1px solid #fecaca; }
.result .hintline { display: block; margin-top: 6px; font-weight: 600; color: #475569; }

.lesson-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 18px; padding-bottom: var(--safe-b); }
.btn-prev { background: rgba(255,255,255,.14); color: #fff; }
.btn-next { background: var(--brand); color: #fff; box-shadow: 0 8px 20px rgba(124,58,237,.4); }
.btn-next:disabled { opacity: .4; cursor: not-allowed; box-shadow: none; }

/* Inline register nudge after finishing */
.inline-promo {
  margin-top: 18px; background: linear-gradient(120deg,#0e7490,#0891b2); color:#fff;
  border-radius: 16px; padding: 18px 20px; text-align: center; display: none;
}
.inline-promo.show { display: block; animation: fade .25s ease; }
.inline-promo h4 { margin: 0 0 6px; font-size: 18px; }
.inline-promo p { margin: 0 0 12px; color: #cffafe; font-size: 14px; }
.inline-promo a { display: inline-block; background: #fff; color: #0e7490; font-weight: 800; text-decoration: none; border-radius: 999px; padding: 10px 22px; }

/* ---------- Reward overlay ---------- */
.overlay {
  position: fixed; inset: 0; z-index: 60; display: none;
  align-items: center; justify-content: center; padding: 20px;
  background: rgba(2,6,23,.6); backdrop-filter: blur(4px);
}
.overlay.show { display: flex; animation: fade .2s ease; }
.reward-card {
  background: #fff; border-radius: 24px; padding: 28px 26px; text-align: center;
  max-width: 340px; width: 100%; box-shadow: 0 30px 80px rgba(0,0,0,.4); animation: pop .3s ease;
}
@keyframes pop { 0% { transform: scale(.85); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }
.reward-card .rw-emoji { font-size: 60px; }
.reward-card h3 { margin: 8px 0 4px; font-size: 26px; color: var(--accent); }
.reward-card p { margin: 0 0 16px; color: var(--muted); font-size: 15px; }
.reward-card .rw-actions { display: flex; flex-direction: column; gap: 10px; }
.reward-card .rw-reg { background: var(--brand); color: #fff; text-decoration: none; font-weight: 800; border-radius: 999px; padding: 12px; font-size: 15px; }
.reward-card .rw-cont { background: #f1f5f9; color: var(--ink); border: none; font-weight: 800; border-radius: 999px; padding: 12px; font-size: 15px; cursor: pointer; font-family: inherit; }

/* ---------- Small phones ---------- */
@media (max-width: 420px) {
  /* Hide the "Code Club" wordmark so the top bar stays on one line; keep the 💻 mark. */
  .topbar { gap: 8px; padding: 10px 12px; }
  .topbar .brandword { display: none; }
  .btn-register { padding: 8px 13px; font-size: 13px; }
  .stars-chip { padding: 6px 11px; font-size: 14px; }

  .wrap { padding: 0 12px 40px; }
  .hero { padding: 12px 4px 20px; }
  .hero .emoji { font-size: 46px; }
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 16px; }

  .lesson-head h2 { font-size: 18px; }
  .explain, .goal { padding: 12px 14px; }
  .explain li { font-size: 14px; }

  /* Full-width, comfortable tap targets for Run / Reset / nav */
  .controls { gap: 8px; }
  .controls .btn { flex: 1; padding: 13px 12px; }
  .lesson-nav .btn { flex: 1; }
  .blockly { height: 300px; }
}