:root {
  --bg: #f6f4ef; --card: #ffffff; --text: #1f2328; --muted: #6b7280;
  --line: #e5e1d8; --accent: #2f6f4f; --accent-soft: #e3efe8; --accent-text: #ffffff;
  --warm: #b4691f; --warm-soft: #fbefe1; --bad: #b42318; --bad-soft: #fde4e1;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a; --card: #1e2125; --text: #e8e6e3; --muted: #9aa0a6;
    --line: #30343a; --accent: #6cc59a; --accent-soft: #1f3a2d; --accent-text: #10241a;
    --warm: #f0b072; --warm-soft: #3a2a19; --bad: #f2877b; --bad-soft: #3d201d;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 820px; margin: 0 auto; padding: 0 16px; }

/* sarlavha */
.top { background: var(--card); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.logo { font-weight: 800; font-size: 20px; color: var(--text); text-decoration: none; }
.logo span { color: var(--accent); }
.top nav { margin-left: auto; display: flex; gap: 14px; flex-wrap: wrap; font-size: 15px; }
.top nav a { text-decoration: none; color: var(--muted); }
.top nav a:hover { color: var(--text); }
main { padding: 24px 0 64px; }

/* umumiy */
h1 { font-size: 28px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 21px; margin: 0 0 8px; }
h3 { font-size: 18px; margin: 0 0 6px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin: 14px 0; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.flash { background: var(--accent-soft); color: var(--accent); border-radius: 10px; padding: 10px 14px; margin: 0 0 14px; font-weight: 600; }
.badge { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase;
         color: var(--warm); background: var(--warm-soft); border-radius: 99px; padding: 2px 10px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

/* formalar */
label { display: block; font-size: 14px; color: var(--muted); margin: 10px 0 4px; }
input[type=text], input[type=number], textarea, select {
  width: 100%; font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
}
textarea { min-height: 70px; resize: vertical; }
.btn {
  display: inline-block; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
  background: var(--accent); color: var(--accent-text); border: none; border-radius: 12px; padding: 11px 18px;
}
.btn.ghost { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.btn.danger { background: transparent; color: var(--bad); border: 1.5px solid var(--bad); }
.btn.small { padding: 6px 12px; font-size: 14px; border-radius: 9px; }
.choice { display: flex; gap: 10px; }
.choice label { flex: 1; margin: 0; display: flex; align-items: center; gap: 8px; color: var(--text);
                border: 1.5px solid var(--line); border-radius: 12px; padding: 12px; cursor: pointer; font-size: 17px; }
.choice input:checked + span { font-weight: 700; color: var(--accent); }
.code-input { font-size: 28px !important; letter-spacing: .3em; text-align: center; max-width: 260px; }

/* bosh sahifa */
.hero { padding: 24px 0 8px; }
.hero p { font-size: 19px; max-width: 640px; }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: s; position: relative; padding-left: 44px; margin: 12px 0; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 30px; height: 30px; border-radius: 50%;
                    background: var(--accent-soft); color: var(--accent); font-weight: 800; display: grid; place-items: center; }

/* panel */
.child-head { display: flex; align-items: center; gap: 12px; }
.avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--accent-soft); color: var(--accent);
          display: grid; place-items: center; font-weight: 800; font-size: 20px; flex: none; }
.book-row { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); flex-wrap: wrap; }
.bar { height: 6px; background: var(--line); border-radius: 99px; overflow: hidden; margin-top: 6px; width: 160px; }
.bar i { display: block; height: 100%; background: var(--accent); }

/* savollar */
.tips { background: var(--warm-soft); border-color: transparent; }
.tips ul { margin: 8px 0 0; padding-left: 20px; }
.chapter-title { margin: 28px 0 4px; }
details.summary { margin: 6px 0 4px; }
details.summary summary { cursor: pointer; color: var(--accent); font-weight: 600; font-size: 15px; }
details.summary p { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin: 8px 0 0; }
.q { position: relative; }
.q .question { font-size: 20px; font-weight: 600; margin: 8px 0 10px; }
.q .media { margin: 10px 0; }
.q .media img, .q .media video { width: 100%; max-height: 460px; object-fit: contain; border-radius: 10px; background: var(--bg); }
.q details { margin-top: 8px; }
.q details summary { cursor: pointer; color: var(--muted); font-size: 15px; }
.q .answer { background: var(--accent-soft); border-radius: 10px; padding: 10px 14px; margin-top: 8px; }
.q .tip { color: var(--warm); font-size: 15px; margin-top: 8px; }
.q .done { position: absolute; top: 16px; right: 16px; font-size: 14px; color: var(--muted); display: flex; gap: 6px; align-items: center; cursor: pointer; }
.q.talked { opacity: .65; }
.locked { text-align: center; color: var(--muted); }

/* admin */
.admin-q { border-top: 1px dashed var(--line); padding-top: 12px; margin-top: 12px; }
.admin-q .grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.admin-q .media img, .admin-q .media video { max-width: 260px; max-height: 160px; border-radius: 8px; }
table { width: 100%; border-collapse: collapse; }
td, th { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }

@media (max-width: 560px) {
  h1 { font-size: 24px; }
  .q .question { font-size: 18px; }
  .admin-q .grid2 { grid-template-columns: 1fr; }
  .q .done { position: static; margin-bottom: 4px; }
  .choice { flex-direction: column; }
}