/* ==========================================================================
   Milliy sertifikat — ilova ichidagi sahifalar (sidebar bilan):
     /certificate/                      fanlar ro'yxati
     /certificate/<fan>/                variantlar
     /certificate/<fan>/<mock>/         variant tavsifi (boshlash)

   Nega alohida fayl: shablon ichidagi CSS'ni theme_lint qattiq rang deb
   sanaydi va dark rejim sinadi (avval shu uch shablonda 94 ta qattiq rang bor edi).
   Uslub /milliy-sertifikat/ hub bilan bir xil tilda: oq karta, 16px radius,
   brend #8BC540, tokenlar dark rejimni o'zi hal qiladi.
   ========================================================================== */

.ca {
  background: var(--bg);
  min-height: 100vh;
  padding: 28px 0 56px;
  --ca-tint:      rgba(139, 197, 64, .10);
  --ca-tint-soft: rgba(139, 197, 64, .06);
  --ca-tint-line: rgba(139, 197, 64, .28);
  --ca-ink:       #4F8A22;
  --ca-shadow:    0 1px 2px rgba(15, 23, 42, .04), 0 8px 24px -12px rgba(15, 23, 42, .10);
  --ca-shadow-up: 0 2px 4px rgba(15, 23, 42, .05), 0 18px 40px -20px rgba(15, 23, 42, .22);
}
[data-theme="dark"] .ca {
  --ca-tint:      rgba(139, 197, 64, .13);
  --ca-tint-soft: rgba(139, 197, 64, .07);
  --ca-tint-line: rgba(139, 197, 64, .32);
  --ca-ink:       #A6D96B;
  --ca-shadow:    0 1px 2px rgba(0, 0, 0, .30), 0 8px 24px -12px rgba(0, 0, 0, .55);
  --ca-shadow-up: 0 2px 4px rgba(0, 0, 0, .35), 0 18px 40px -20px rgba(0, 0, 0, .70);
}
.ca :focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 8px; }

/* ── Sarlavha bloki ──────────────────────────────────────────────────────── */
.ca-crumb { font-size: 13px; font-weight: 600; color: var(--text-3); margin-bottom: 14px; display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.ca-crumb a { color: var(--text-2); text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.ca-crumb a:hover { color: var(--brand-2); }
.ca-crumb span.sep { color: var(--border-2); }

.ca-head { margin-bottom: 28px; }
.ca-head h1 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; color: var(--text); letter-spacing: -.02em; margin: 0 0 8px; line-height: 1.2; }
.ca-head p { color: var(--text-2); font-size: 15px; line-height: 1.65; margin: 0; max-width: 62ch; }
.ca-head-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

.ca-badge {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--ca-tint); border: 1px solid var(--ca-tint-line);
  border-radius: 50px; padding: 5px 14px;
  color: var(--ca-ink); font-size: 12.5px; font-weight: 700;
}

/* ── Fanlar gridi (/certificate/) ────────────────────────────────────────── */
.ca-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.ca-sub {
  position: relative;
  display: flex; flex-direction: column; align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  min-height: 158px;
  text-decoration: none;
  box-shadow: var(--ca-shadow);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.ca-sub:hover { border-color: var(--brand); box-shadow: var(--ca-shadow-up); transform: translateY(-2px); }
.ca-sub-i { width: 52px; height: 52px; display: flex; align-items: center; justify-content: center; font-size: 30px; line-height: 1; margin-bottom: 14px; }
.ca-sub-i img { width: 100%; height: 100%; object-fit: contain; }
.ca-sub-n { font-size: 16px; font-weight: 700; color: var(--text); line-height: 1.3; margin: 0; }
.ca-sub-m { font-size: 13px; color: var(--text-3); margin-top: auto; padding-top: 10px; }
.ca-sub-c {
  position: absolute; top: 16px; right: 16px;
  background: var(--surface-2); color: var(--text-2);
  border-radius: 8px; padding: 3px 9px;
  font-size: 12px; font-weight: 700;
  transition: background .18s ease, color .18s ease;
}
.ca-sub:hover .ca-sub-c { background: var(--ca-tint); color: var(--ca-ink); }

/* ── Variantlar gridi (/certificate/<fan>/) ──────────────────────────────── */
.ca-mocks { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.ca-mock {
  position: relative;
  display: flex; flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--ca-shadow);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
  overflow: hidden;
}
.ca-mock:hover { border-color: var(--brand); box-shadow: var(--ca-shadow-up); transform: translateY(-2px); }
.ca-mock-n {
  font-size: 13px; font-weight: 800; letter-spacing: .04em;
  color: var(--ca-ink); background: var(--ca-tint);
  border: 1px solid var(--ca-tint-line);
  border-radius: 8px; padding: 3px 10px;
  align-self: flex-start; margin-bottom: 14px;
}
.ca-mock-t { font-size: 16px; font-weight: 700; color: var(--text); line-height: 1.35; margin: 0 0 6px; }
.ca-mock-m { font-size: 13px; color: var(--text-3); margin: 0 0 16px; line-height: 1.55; }
.ca-mock-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.ca-tag { background: var(--surface-2); color: var(--text-2); border-radius: 7px; padding: 3px 9px; font-size: 12px; font-weight: 600; }
.ca-tag-done { background: var(--success-bg); color: var(--success-text); }
.ca-mock-a { margin-top: auto; }

.ca-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; padding: 11px 16px;
  border: 1px solid transparent; border-radius: 11px;
  font-size: 14.5px; font-weight: 700;
  text-decoration: none; cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}
.ca-btn-primary { background: linear-gradient(135deg, #8BC540, #6BA832); color: var(--on-brand); box-shadow: 0 6px 18px -8px rgba(107, 168, 50, .75); }
.ca-btn-primary:hover { color: var(--on-brand); transform: translateY(-2px); box-shadow: 0 12px 26px -10px rgba(107, 168, 50, .8); }
.ca-btn-ghost { background: var(--surface); color: var(--text); border-color: var(--border-2); }
.ca-btn-ghost:hover { color: var(--text); border-color: var(--brand); background: var(--ca-tint-soft); }
/* Qulflangan variant: to'q tugma shovqin qilardi (bitta sahifada 11 ta) —
   endi tinch amber ohang, ochiq CTA faqat bepul variantlarda qoladi. */
.ca-btn-lock { background: var(--warning-bg); color: var(--warning-text); border-color: transparent; }
.ca-btn-lock:hover { color: var(--warning-text); border-color: var(--warning); }
.ca-btn-lock svg { flex: none; }
.ca-btn-w { width: 100%; }

/* Premium qulf: kontentni xiralashtirish o'rniga toza qatlam */
.ca-mock.is-locked { background: var(--surface-2); }
.ca-mock.is-locked .ca-mock-n { background: var(--surface-3); border-color: var(--border-2); color: var(--text-3); }

/* ── Variant tavsifi (mock_detail) ───────────────────────────────────────── */
.ca-detail { max-width: 620px; margin: 0 auto; }
.ca-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--ca-shadow-up);
  padding: 32px;
}
.ca-card h1 { font-size: clamp(21px, 2.6vw, 27px); font-weight: 800; color: var(--text); letter-spacing: -.02em; margin: 14px 0 8px; line-height: 1.25; }
.ca-card > p.d { color: var(--text-2); font-size: 14.5px; line-height: 1.65; margin: 0 0 24px; }

.ca-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 22px 0; }
.ca-stat { display: flex; align-items: center; gap: 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; }
.ca-stat-i { width: 40px; height: 40px; flex: none; border-radius: 11px; display: flex; align-items: center; justify-content: center; background: var(--ca-tint); color: var(--ca-ink); }
.ca-stat b { display: block; font-size: 15.5px; font-weight: 800; color: var(--text); line-height: 1.2; }
.ca-stat span { display: block; font-size: 12px; color: var(--text-3); font-weight: 600; margin-top: 2px; }

.ca-rules { background: var(--bg); border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px; margin-bottom: 26px; }
.ca-rules h2 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); margin: 0 0 12px; }
.ca-rules ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.ca-rules li { position: relative; padding-left: 22px; color: var(--text-2); font-size: 14px; line-height: 1.55; }
.ca-rules li::before {
  content: ''; position: absolute; left: 2px; top: 7px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--brand);
}

.ca-best { display: flex; align-items: center; justify-content: space-between; gap: 14px; background: var(--ca-tint-soft); border: 1px solid var(--ca-tint-line); border-radius: 14px; padding: 14px 18px; margin-bottom: 20px; }
.ca-best span { font-size: 13.5px; color: var(--text-2); font-weight: 600; }
.ca-best b { font-size: 17px; font-weight: 800; color: var(--ca-ink); }

.ca-spinner {
  width: 18px; height: 18px; flex: none;
  border: 2.5px solid rgba(255, 255, 255, .35);
  border-top-color: var(--on-brand);
  border-radius: 50%;
  animation: ca-spin .8s linear infinite;
}
@keyframes ca-spin { to { transform: rotate(360deg); } }

/* ── Bo'sh holat ─────────────────────────────────────────────────────────── */
.ca-empty { text-align: center; padding: 64px 24px; background: var(--surface); border: 1px dashed var(--border-2); border-radius: 20px; }
.ca-empty-i { font-size: 46px; opacity: .35; margin-bottom: 14px; }
.ca-empty h2 { font-size: 18px; font-weight: 700; color: var(--text); margin: 0 0 8px; }
.ca-empty p { color: var(--text-2); font-size: 14.5px; margin: 0 0 18px; }

/* ══════════════════════════════════════════════════════════════════════════
   MOBIL / PLANSHET (2026-08-29)
   Fan plitkalari telefonda 2 ustun (ixcham), variant kartalari esa 1 ustun —
   variant kartasida nom + teglar + to'liq kenglikdagi tugma bor, 2 ustunda
   ular siqilib o'qilmay qoladi.
   ══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 1200px) { .ca-grid, .ca-mocks { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 860px)  { .ca-grid, .ca-mocks { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px)  { .ca-mocks { grid-template-columns: 1fr; } }
@media (max-width: 520px) {
  .ca { padding: 18px 0 32px; }
  .ca-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .ca-mocks { gap: 12px; }
  .ca-head { margin-bottom: 22px; }
  .ca-head-row { flex-direction: column; align-items: stretch; gap: 14px; }
  .ca-head p { font-size: 15px; }
  .ca-sub { padding: 16px; min-height: 128px; }
  .ca-sub-i { width: 40px; height: 40px; font-size: 24px; margin-bottom: 10px; }
  .ca-sub-n { font-size: 15px; }
  .ca-sub-m { font-size: 13.5px; }
  .ca-sub-c { top: 12px; right: 12px; }
  .ca-mock { padding: 16px; }
  .ca-mock-t { font-size: 16.5px; }
  .ca-mock-m { font-size: 14px; }
  .ca-card { padding: 20px 18px; }
  .ca-card > p.d { font-size: 15px; }
  .ca-stats { grid-template-columns: 1fr; }
  .ca-rules { padding: 16px 18px; }
  .ca-rules li { font-size: 15px; }
  .ca-best { flex-wrap: wrap; gap: 6px 14px; }
  .ca-empty { padding: 44px 18px; }
  .ca-empty p { font-size: 15px; }
  /* Barmoq maydoni: sahifadagi har bir harakat tugmasi ≥ 48px */
  .ca-btn { min-height: 48px; font-size: 15px; }
  .ca-head-row .ca-btn { width: 100% !important; }
}

/* Sensorli qurilma: bosgandan keyin hover holati "yopishib" qolmasin */
@media (hover: none) {
  .ca-sub:hover, .ca-mock:hover, .ca-btn:hover { transform: none; }
  .ca-sub:hover, .ca-mock:hover { border-color: var(--border); box-shadow: var(--ca-shadow); }
  .ca-sub:hover .ca-sub-c { background: var(--surface-2); color: var(--text-2); }
}

@media (prefers-reduced-motion: reduce) {
  .ca *, .ca *::before, .ca *::after { transition: none !important; animation: none !important; }
  .ca-sub:hover, .ca-mock:hover, .ca-btn:hover { transform: none; }
}