:root {
  --bg:#f3f5f9; --card:#fff; --ink:#17202e; --muted:#667085; --line:#e3e8ef;
  --brand:#f26a1b; --brand-d:#d9480f; --soft:#fff3ea; --navy:#14213d; --navy-2:#22335c;
  --up:#12a150; --down:#d92d20; --radius:16px; --shadow:0 6px 24px rgba(20,33,61,.08);
}
* { box-sizing:border-box; }
html { -webkit-text-size-adjust:100%; }
body { margin:0; background:var(--bg); color:var(--ink); font-family:Vazirmatn, IRANSans, Tahoma, sans-serif; font-size:16px; line-height:1.8; }
a { color:var(--brand-d); }
[hidden] { display:none !important; }

/* سربرگ */
.top { background:var(--navy); color:#fff; position:sticky; top:0; z-index:10; }
.top-in { max-width:920px; margin:0 auto; padding:8px 16px; display:flex; align-items:center; gap:12px; }
.logo { font-weight:800; color:#fff; text-decoration:none; white-space:nowrap; margin-inline-end:auto; }
.logo::before { content:""; display:inline-block; width:10px; height:10px; border-radius:3px; background:var(--brand); margin-inline-end:8px; }
.top nav { display:flex; gap:4px; overflow-x:auto; scrollbar-width:none; }
.top nav::-webkit-scrollbar { display:none; }
.top nav a { color:#c9d2e3; text-decoration:none; font-size:.88rem; padding:6px 10px; border-radius:999px; white-space:nowrap; }
.top nav a:hover { color:#fff; }
.top nav a[aria-current] { background:rgba(255,255,255,.14); color:#fff; }

/* بخش معرفی و نرخ‌های روز */
.hero { background:linear-gradient(160deg, var(--navy), var(--navy-2)); color:#fff; padding:22px 0 64px; }
.hero-in { max-width:920px; margin:0 auto; padding:0 16px; }
.hero h1 { font-size:1.45rem; line-height:1.6; margin:0 0 6px; }
.hero p { margin:0 0 16px; color:#c9d2e3; font-size:.95rem; }
.ticker { display:flex; gap:8px; overflow-x:auto; padding-bottom:4px; scroll-snap-type:x proximity; scrollbar-width:none; }
.ticker::-webkit-scrollbar { display:none; }
.tick { flex:0 0 auto; min-width:128px; background:rgba(255,255,255,.09); border:1px solid rgba(255,255,255,.12); border-radius:12px; padding:8px 12px; color:#fff; text-decoration:none; scroll-snap-align:start; }
.tick span { display:block; font-size:.78rem; color:#c9d2e3; }
.tick b { display:block; font-size:1rem; }
.tick i { font-style:normal; font-size:.78rem; }
.tick .up { color:#6ee7a8; } .tick .down { color:#ffa29a; }

main { max-width:760px; margin:0 auto; padding:20px 16px 40px; }
main.wide { max-width:920px; }
.hero + main { margin-top:-48px; padding-top:0; }
h1 { font-size:1.35rem; line-height:1.6; margin:4px 0 6px; }
h2 { font-size:1.08rem; margin:0 0 10px; }
.lead { color:var(--muted); margin:0 0 18px; font-size:.95rem; }
.card { background:var(--card); border-radius:var(--radius); padding:18px; margin-bottom:16px; box-shadow:var(--shadow); }

/* فرم */
label, .label { display:block; font-size:.92rem; margin-bottom:6px; font-weight:700; }
.label small, label small { font-weight:400; color:var(--muted); }
input, select, button, textarea { font:inherit; }
input[type=text], input[type=password], input:not([type]), select, textarea {
  width:100%; min-height:48px; padding:10px 14px; border:1.5px solid var(--line); border-radius:12px; background:#fff; color:var(--ink);
}
select { padding-inline:10px; }
textarea { min-height:180px; line-height:1.9; }
input:focus, select:focus, textarea:focus { outline:none; border-color:var(--brand); box-shadow:0 0 0 3px rgba(242,106,27,.18); }
button:focus-visible, a:focus-visible, summary:focus-visible { outline:3px solid rgba(242,106,27,.45); outline-offset:2px; }
::placeholder { color:#b3bac6; font-weight:400; opacity:1; }
.field { margin-bottom:16px; }
.with-suffix { position:relative; }
.with-suffix input { padding-inline-end:64px; font-size:1.15rem; font-weight:700; }
.with-suffix span { position:absolute; inset-inline-end:14px; top:50%; transform:translateY(-50%); color:var(--muted); font-size:.9rem; pointer-events:none; }
.hint { color:var(--brand-d); font-size:.85rem; min-height:1.5em; margin:4px 2px 0; }
.date { display:grid; grid-template-columns:1fr 1.4fr 1.2fr; gap:8px; }
.grid2 { display:grid; grid-template-columns:repeat(auto-fit, minmax(200px, 1fr)); gap:0 14px; }
.check { display:flex; gap:10px; align-items:center; font-weight:400; font-size:.94rem; cursor:pointer; min-height:44px; }
.check input { width:20px; height:20px; accent-color:var(--brand); }
details.more { border-top:1px solid var(--line); margin:4px 0 16px; padding-top:6px; }
details.more summary { cursor:pointer; font-size:.94rem; color:var(--muted); min-height:44px; display:flex; align-items:center; }
details.more[open] summary { margin-bottom:8px; }

.chips { display:flex; flex-wrap:wrap; gap:6px; margin:0 0 8px; }
.chip { min-height:36px; padding:4px 14px; border:1.5px solid var(--line); border-radius:999px; background:#fff; color:var(--ink); font-size:.88rem; cursor:pointer; text-decoration:none; display:inline-flex; align-items:center; }
.chip:hover { border-color:var(--brand); }
.chip[aria-pressed=true], .chip[aria-current] { background:var(--brand); border-color:var(--brand); color:#fff; }

.btn { display:inline-flex; align-items:center; justify-content:center; width:100%; min-height:52px; padding:10px 18px; border:0; border-radius:12px; background:var(--brand); color:#fff; font-weight:800; font-size:1.05rem; cursor:pointer; text-decoration:none; transition:background .15s; }
.btn:hover { background:var(--brand-d); }
.btn.ghost { background:var(--soft); color:var(--brand-d); }
.btn.ghost:hover { background:#ffe6d3; }
.btn.small { width:auto; min-height:44px; font-size:.92rem; font-weight:700; }
.btns { display:flex; flex-wrap:wrap; gap:8px; }
.btns .btn.small { flex:1 1 180px; }
.err { color:var(--down); font-size:.92rem; min-height:1.4em; margin:8px 0 0; }
.note { color:var(--muted); font-size:.84rem; margin:10px 0 0; }
.up { color:var(--up); } .down { color:var(--down); }

/* نتیجه */
.answer { background:linear-gradient(160deg, var(--brand), var(--brand-d)); color:#fff; border-radius:var(--radius); padding:20px 18px; margin-bottom:16px; box-shadow:var(--shadow); }
.answer .cap { font-size:.95rem; opacity:.95; }
.answer .big { font-size:clamp(1.7rem, 7.5vw, 2.5rem); font-weight:900; line-height:1.5; }
.answer .words { font-size:.95rem; opacity:.95; }
.answer .sub { margin-top:10px; padding-top:10px; border-top:1px solid rgba(255,255,255,.3); font-size:.92rem; display:flex; flex-wrap:wrap; gap:4px 18px; }
.bms { display:grid; grid-template-columns:repeat(auto-fit, minmax(210px, 1fr)); gap:10px; }
.bm { border:1.5px solid var(--line); border-radius:14px; padding:12px 14px; }
.bm.main { border-color:var(--brand); background:var(--soft); }
.bm-head { display:flex; justify-content:space-between; align-items:center; gap:8px; margin-bottom:4px; }
.bm-head b { font-size:1.02rem; }
.badge { background:var(--navy); color:#fff; border-radius:999px; padding:1px 10px; font-size:.8rem; white-space:nowrap; }
.bm-rates { color:var(--muted); font-size:.84rem; margin-bottom:8px; }
.bm-val { display:flex; justify-content:space-between; align-items:baseline; gap:8px; font-size:.9rem; }
.bm-val span { color:var(--muted); }
.bm-val b { font-size:1.05rem; }
.bm-val.sell b { color:var(--brand-d); }
.bm.none { color:var(--muted); font-size:.88rem; }

.chart { display:block; width:100%; height:auto; color:var(--brand); direction:ltr; }
.chart-meta { display:flex; justify-content:space-between; direction:ltr; color:var(--muted); font-size:.82rem; }
#result { scroll-margin-top:64px; }
.chart text { font-size:13px; fill:var(--muted); font-family:inherit; }

/* جدول‌ها */
.scroll { overflow-x:auto; -webkit-overflow-scrolling:touch; }
table { width:100%; border-collapse:collapse; font-size:.92rem; }
th, td { padding:10px 8px; border-bottom:1px solid var(--line); text-align:right; white-space:nowrap; }
th { color:var(--muted); font-weight:600; font-size:.84rem; }
tfoot td { font-weight:800; border-top:2px solid var(--line); border-bottom:0; }

.stats { display:grid; grid-template-columns:repeat(auto-fit, minmax(140px, 1fr)); gap:10px; margin:0 0 12px; }
.stat { background:var(--bg); border-radius:12px; padding:10px 12px; }
.stat b { display:block; font-size:1.05rem; }
.stat span { color:var(--muted); font-size:.8rem; }
.pager { display:flex; justify-content:space-between; gap:12px; font-size:.94rem; }
.pager a { min-height:44px; display:inline-flex; align-items:center; }
.crumbs { font-size:.85rem; color:var(--muted); margin:0 0 6px; }
.crumbs a { color:inherit; }

footer { text-align:center; color:var(--muted); font-size:.84rem; padding:0 16px 32px; line-height:2.2; }
footer a { color:inherit; }

.prose h2 { margin-top:18px; } .prose h2:first-child { margin-top:0; }
.prose h3 { font-size:1rem; margin:14px 0 4px; }
.prose p { margin:0 0 8px; color:#3b4656; font-size:.95rem; }

/* حساب کاربری، پنجرهٔ ورود، پلن‌ها و پنل */
.acct-btn { display:inline-flex; align-items:center; min-height:36px; padding:4px 14px; border:0; border-radius:999px; background:var(--brand); color:#fff; font-size:.88rem; font-weight:700; text-decoration:none; cursor:pointer; white-space:nowrap; }
.flash { background:#e8f7ee; color:#0b6b35; border-radius:12px; padding:10px 14px; margin-bottom:16px; font-size:.94rem; }
dialog.login { border:0; border-radius:var(--radius); padding:22px 20px; width:min(380px, calc(100vw - 32px)); box-shadow:0 20px 60px rgba(0,0,0,.3); }
dialog.login::backdrop { background:rgba(20,33,61,.55); }
dialog.login h2 { margin:0 0 14px; }
dialog.login input { margin-bottom:12px; font-size:1.1rem; text-align:center; }
dialog.login .btn + .btn { margin-top:8px; width:100%; }
dialog.login form + form { margin-top:12px; }
.login-x { position:absolute; top:8px; inset-inline-end:10px; }
.login-x button { border:0; background:none; font-size:1.6rem; line-height:1; cursor:pointer; color:var(--muted); min-width:36px; min-height:36px; }
.plans { display:grid; grid-template-columns:repeat(auto-fit, minmax(210px, 1fr)); gap:14px; margin-bottom:16px; }
.plan { position:relative; background:var(--card); border:1.5px solid var(--line); border-radius:var(--radius); padding:20px 16px; box-shadow:var(--shadow); display:flex; flex-direction:column; }
.plan.best { border-color:var(--brand); }
.plan .badge { position:absolute; top:-11px; inset-inline-start:16px; background:var(--brand); }
.plan h2 { margin:0; }
.plan .price { font-size:1.7rem; font-weight:900; margin:6px 0 10px; }
.plan .price small { font-size:.85rem; font-weight:400; color:var(--muted); }
.plan ul { list-style:none; margin:0 0 16px; padding:0; font-size:.9rem; flex:1; }
.plan li { padding:5px 0; padding-inline-start:22px; position:relative; }
.plan li::before { content:"✓"; position:absolute; inset-inline-start:0; color:var(--up); font-weight:900; }
.plan li.off { color:#a3abb8; text-decoration:line-through; }
.plan li.off::before { content:"–"; color:#a3abb8; }
.picklist { max-height:320px; overflow-y:auto; border:1.5px solid var(--line); border-radius:12px; padding:4px 12px; margin-top:8px; }
.picklist .check { min-height:40px; border-bottom:1px solid var(--line); }
.picklist .check:last-child { border-bottom:0; }
.rows .row { display:flex; justify-content:space-between; gap:12px; padding:9px 0; border-bottom:1px solid var(--line); font-size:.95rem; }
.rows .row span:first-child { color:var(--muted); }
.rows { border-top:1px solid var(--line); margin-top:10px; }
details.help { background:var(--soft); border:1.5px solid #ffd9bf; border-radius:14px; padding:8px 14px; margin-bottom:16px; font-size:.93rem; }
details.help summary { cursor:pointer; font-weight:700; color:var(--brand-d); min-height:36px; display:flex; align-items:center; }
details.help ol, details.help ul { margin:6px 0; padding-inline-start:22px; }
details.help li { margin-bottom:6px; }
details.help p { margin:8px 0; }
details.help dl { margin:6px 0; }
details.help dt { font-weight:700; margin-top:8px; }
details.help dd { margin:0; color:#3b4656; }
.card details.help { margin:0 0 14px; }
details.edit label small { display:block; color:var(--muted); }
details.edit summary { cursor:pointer; font-weight:700; color:var(--brand-d); }
details.edit form { display:grid; gap:8px; margin-top:10px; min-width:230px; white-space:normal; }
details.edit label { font-weight:400; font-size:.85rem; margin:0; }
details.edit input { min-height:40px; padding:6px 10px; margin-top:2px; }
form.inline { display:flex; gap:6px; align-items:center; }
form.inline select { min-height:40px; width:auto; }
table.stack td input { min-height:40px; padding:6px 10px; min-width:90px; }
.bars { display:flex; align-items:flex-end; gap:2px; height:120px; border-bottom:1.5px solid var(--line); }
.bars i { flex:1; background:var(--brand); border-radius:3px 3px 0 0; min-width:2px; opacity:.85; }
.bars i:hover { opacity:1; }
.hbar { display:grid; grid-template-columns:110px 1fr 60px; gap:10px; align-items:center; margin-bottom:8px; font-size:.9rem; }
.hbar i { display:block; height:18px; background:var(--brand); border-radius:6px; min-width:2px; }
.hbar b { text-align:left; }

/* موبایل: جدول‌های پهن به کارت تبدیل می‌شوند */
@media (max-width:640px) {
  .hero { padding-top:16px; }
  .hero h1 { font-size:1.25rem; }
  .card { padding:16px 14px; }
  table.stack thead { display:none; }
  table.stack, table.stack tbody, table.stack tfoot { display:block; }
  table.stack tr { display:block; border:1.5px solid var(--line); border-radius:14px; padding:6px 12px; margin-bottom:10px; }
  table.stack td { display:flex; justify-content:space-between; align-items:baseline; gap:12px; border:0; padding:5px 0; white-space:normal; text-align:left; }
  table.stack td::before { content:attr(data-label); color:var(--muted); font-size:.84rem; text-align:right; }
  table.stack td:first-child { font-weight:800; font-size:1rem; border-bottom:1px solid var(--line); padding-bottom:8px; margin-bottom:4px; }
  table.stack td:first-child::before { content:none; }
  table.stack td:empty { display:none; }
  table.stack tfoot tr { background:var(--soft); border-color:var(--brand); }
  table.stack tfoot td { border-top:0; }
}
@media (min-width:641px) {
  .hero h1 { font-size:1.7rem; }
  .card { padding:24px; }
}