/* ---------- توکن‌های طراحی ---------- */
:root {
  --bg: #f4f6fb;
  --bg-elev: #ffffff;
  --surface: #ffffff;
  --surface-2: #f0f3f9;
  --text: #141c2b;
  --muted: #66718a;
  --border: #e0e5ef;
  --primary: #1565d8;
  --primary-ink: #ffffff;
  --primary-soft: #e8f1fe;
  --good: #0a7c55;
  --good-soft: #e4f5ee;
  --bad: #cc3341;
  --bad-soft: #fdeaec;
  --warn: #a4690a;
  --warn-soft: #fdf3e0;
  --ring: rgba(21, 101, 216, .35);
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 8px 24px rgba(16, 24, 40, .06);
  --radius: 16px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d131f;
    --bg-elev: #141d2c;
    --surface: #141d2c;
    --surface-2: #1b2637;
    --text: #e6ecf6;
    --muted: #93a1b8;
    --border: #253247;
    --primary: #5ba0f2;
    --primary-ink: #06121f;
    --primary-soft: #14263d;
    --good: #3fc394;
    --good-soft: #102b22;
    --bad: #f4818c;
    --bad-soft: #2e161b;
    --warn: #e0a94b;
    --warn-soft: #2c2415;
    --ring: rgba(91, 160, 242, .4);
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d131f;
  --bg-elev: #141d2c;
  --surface: #141d2c;
  --surface-2: #1b2637;
  --text: #e6ecf6;
  --muted: #93a1b8;
  --border: #253247;
  --primary: #5ba0f2;
  --primary-ink: #06121f;
  --primary-soft: #14263d;
  --good: #3fc394;
  --good-soft: #102b22;
  --bad: #f4818c;
  --bad-soft: #2e161b;
  --warn: #e0a94b;
  --warn-soft: #2c2415;
  --ring: rgba(91, 160, 242, .4);
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px rgba(0, 0, 0, .35);
  color-scheme: dark;
}

/* ---------- پایه ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Vazirmatn, -apple-system, BlinkMacSystemFont, "Segoe UI", Tahoma, sans-serif;
  font-feature-settings: "ss01";
  line-height: 1.75;
  transition: background .2s, color .2s;
}
:focus-visible { outline: 3px solid var(--ring); outline-offset: 2px; border-radius: 8px; }
.hidden { display: none !important; }
.wrap { max-width: 940px; margin: auto; padding: 0 16px 120px; }
.muted { color: var(--muted); font-size: 13px; }

/* ---------- نوار بالا ---------- */
.topbar {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.topbar-in {
  max-width: 940px; margin: auto; padding: 10px 16px;
  display: flex; align-items: center; gap: 10px;
}
.brand { font-size: 17px; font-weight: 800; margin: 0; flex: 1; min-width: 0; }
.brand span { display: block; font-size: 12px; font-weight: 400; color: var(--muted); }
.iconbtn {
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  width: 38px; height: 38px; border-radius: 11px; cursor: pointer;
  display: grid; place-items: center; font-size: 16px; flex: none;
  transition: background .15s, border-color .15s;
}
.iconbtn:hover { background: var(--surface-2); }

/* ---------- کارت و دکمه ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; margin: 16px 0; box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 4px; font-size: 18px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(215px, 1fr)); gap: 10px; }
.btn {
  font: inherit; text-align: start;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  border-radius: 13px; padding: 13px 15px; cursor: pointer;
  transition: background .15s, border-color .15s, transform .06s;
}
.btn:hover:not(:disabled) { border-color: var(--primary); background: var(--primary-soft); }
.btn:active:not(:disabled) { transform: scale(.99); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn.primary { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); text-align: center; font-weight: 700; }
.btn.primary:hover:not(:disabled) { filter: brightness(1.08); background: var(--primary); }
.btn.ghost { text-align: center; }
.btn.danger { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 35%, var(--border)); text-align: center; font-weight: 600; }
.btn.danger:hover:not(:disabled) { background: var(--bad-soft); border-color: var(--bad); }
.btn .unit { font-weight: 700; display: block; }
/* ردیف دوره‌های یک درس: دکمه‌های کوچکِ سال، زیر نام درس */
.ublock { margin-bottom: 14px; }
.ublock:last-child { margin-bottom: 0; }
.uname {
  display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
  margin: 0 0 7px; font-weight: 700; font-size: 14px;
}
.uname small { font-weight: 400; font-size: 12px; color: var(--muted); }
.yrs { display: flex; flex-wrap: wrap; gap: 7px; }
.ybtn {
  font: inherit; font-size: 13px; cursor: pointer;
  padding: 7px 11px; border-radius: 9px;
  border: 1.5px solid var(--border); background: var(--surface); color: inherit;
}
.ybtn:hover { border-color: var(--primary); background: var(--primary-soft); }
.ybtn:active { transform: scale(.98); }
.ybtn b { font-weight: 700; }
.ybtn small { color: var(--muted); font-size: 11px; margin-inline-start: 4px; }
.ybtn.all { border-color: var(--primary); font-weight: 700; }
.btn .count { font-size: 12px; color: var(--muted); }
.row { display: flex; gap: 8px; flex-wrap: wrap; }
.row > .btn { flex: 1; min-width: 120px; }

.pill {
  background: var(--surface-2); color: var(--muted);
  border-radius: 999px; padding: 4px 11px; font-size: 12px; white-space: nowrap;
}
.pill.accent { background: var(--primary-soft); color: var(--primary); font-weight: 600; }

/* ---------- خانه ---------- */
.hero { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; text-align: center; }
.hero div { background: var(--surface-2); border-radius: 13px; padding: 14px 8px; }
.hero b { display: block; font-size: 22px; font-weight: 800; }
.hero small { color: var(--muted); font-size: 12px; }

/* ---------- آزمون ---------- */
.progress { height: 6px; background: var(--surface-2); border-radius: 99px; overflow: hidden; margin-top: 8px; }
.progress i { display: block; height: 100%; background: var(--primary); border-radius: 99px; transition: width .25s; }
.qhead { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.qtext { font-size: 18px; line-height: 2.1; font-weight: 650; margin: 16px 0 14px; }
.option {
  font: inherit; display: flex; gap: 10px; align-items: flex-start; width: 100%; text-align: start;
  margin: 8px 0; border: 1.5px solid var(--border); border-radius: 13px; padding: 13px 14px;
  line-height: 1.9; background: var(--surface); color: var(--text); cursor: pointer;
  transition: border-color .15s, background .15s;
}
.option:hover { border-color: var(--primary); }
.option .num {
  flex: none; width: 26px; height: 26px; border-radius: 8px; background: var(--surface-2);
  color: var(--muted); display: grid; place-items: center; font-size: 13px; font-weight: 700; margin-top: 2px;
}
.option.sel { border-color: var(--primary); background: var(--primary-soft); }
.option.sel .num { background: var(--primary); color: var(--primary-ink); }

/* ---------- ناوبری ---------- */
.navbar {
  position: sticky; bottom: 0; z-index: 55; margin: 16px -16px 0; padding: 10px 16px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(14px); border-top: 1px solid var(--border);
  display: flex; gap: 8px;
}
.navbar .btn { flex: 1; text-align: center; }
.navgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(44px, 1fr)); gap: 6px; }
.navgrid button {
  font: inherit; aspect-ratio: 1; border-radius: 10px; cursor: pointer; font-size: 13px; font-weight: 600;
  border: 1.5px solid var(--border); background: var(--surface); color: var(--muted); position: relative;
}
.navgrid button.done { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
.navgrid button.now { outline: 3px solid var(--ring); }
.navgrid button.flag::after {
  content: ""; position: absolute; top: 3px; inset-inline-end: 3px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--warn);
}

/* ---------- منبع ---------- */
details.src { padding: 0; overflow: hidden; }
details.src > summary { padding: 14px 18px; cursor: pointer; font-weight: 700; list-style: none; }
details.src > summary::-webkit-details-marker { display: none; }
details.src > summary::before { content: "▸ "; color: var(--muted); }
details.src[open] > summary::before { content: "▾ "; }
.src-body { padding: 0 18px 16px; }
.pageimg {
  width: 100%; height: auto; border: 1px solid var(--border); border-radius: 11px;
  display: block; background: var(--surface-2); margin-bottom: 10px;
}

/* ---------- نتیجه ---------- */
.scorewrap { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.ring { --p: 0; flex: none; width: 116px; height: 116px; border-radius: 50%; display: grid; place-items: center;
  background: conic-gradient(var(--primary) calc(var(--p) * 1%), var(--surface-2) 0); }
.ring i { width: 88px; height: 88px; border-radius: 50%; background: var(--surface);
  display: grid; place-items: center; font-style: normal; font-size: 24px; font-weight: 800; }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; flex: 1; min-width: 220px; text-align: center; }
.metrics div { background: var(--surface-2); border-radius: 12px; padding: 10px 6px; }
.metrics b { display: block; font-size: 19px; font-weight: 800; }
.metrics small { color: var(--muted); font-size: 12px; }
.bars { display: grid; gap: 9px; }
.bar-row { display: grid; grid-template-columns: 1fr auto; gap: 6px 10px; align-items: center; font-size: 13px; }
.bar { grid-column: 1 / -1; height: 7px; border-radius: 99px; background: var(--surface-2); overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--good); }

.an { padding: 11px 13px; border-radius: 11px; background: var(--surface-2); margin: 8px 0; line-height: 1.95; font-size: 14px; }
.an.correct { background: var(--good-soft); box-shadow: inset 0 0 0 1.5px var(--good); }
.an.picked-wrong { background: var(--bad-soft); box-shadow: inset 0 0 0 1.5px var(--bad); }
.an b { display: block; margin-bottom: 3px; }
.legal { background: var(--primary-soft); border-inline-start: 4px solid var(--primary); padding: 12px 14px; border-radius: 11px; line-height: 1.95; font-size: 14px; }
.warning { background: var(--warn-soft); color: var(--warn); padding: 11px 13px; border-radius: 12px; font-size: 14px; }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 4px; }
.tabs button { font: inherit; border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  border-radius: 999px; padding: 6px 14px; cursor: pointer; font-size: 13px; }
.tabs button[aria-selected="true"] { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); font-weight: 600; }

/* ---------- دروازه ورود ---------- */
.gate { max-width: 380px; margin: 60px auto; text-align: center; }
.gate input {
  font: inherit; width: 100%; padding: 13px; border-radius: 12px; text-align: center;
  letter-spacing: 6px; border: 1.5px solid var(--border); background: var(--bg); color: var(--text);
}
.gate input:focus { border-color: var(--primary); }

/* ---------- اسکلت بارگذاری ---------- */
.skeleton { background: var(--surface-2); border-radius: 10px; height: 15px; margin: 9px 0; animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .45; } }

@media (max-width: 560px) {
  .wrap { padding: 0 12px 110px; }
  .qtext { font-size: 17px; }
  .hero { grid-template-columns: repeat(3, 1fr); }
  .hero b { font-size: 18px; }
  .card { padding: 15px; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

/* برچسب بانک — تا در نگاه اول معلوم باشد کدام کارت کانون است و کدام مرکز */
.srctag{margin:0 0 2px;font-size:.72rem;font-weight:700;letter-spacing:.02em;
  color:var(--muted);text-transform:none}
.card.src-k{border-inline-start:4px solid var(--accent)}
.card.src-m{border-inline-start:4px solid var(--muted)}
.card.src-k .srctag{color:var(--accent)}