:root{
  --bg:#f6f7fb; --text:#0f172a; --muted:#718198;
  --card: rgba(255,255,255,0.9);
  --shadow: 0 10px 30px rgba(21,39,63,.10);
  --radius: 18px;
  --green:#10b981; --red:#ef4444;
  --surface:#e9eef7;
  --accent:#3b82f6; --accent-strong:#1d4ed8;
  --ring: rgba(59,130,246,.25);
  --grad: radial-gradient(1200px 600px at 80% -20%, #e6f0ff, transparent 60%),
          radial-gradient(800px 400px at -10% 10%, #fef3c7, transparent 40%);
}
:root.dark{
  --bg:#0b1220; --text:#e5e7eb; --muted:#94a3b8;
  --card: rgba(14,20,30,0.85);
  --shadow: 0 16px 40px rgba(0,0,0,.45);
  --surface:#0f172a;
  --accent:#60a5fa; --accent-strong:#93c5fd;
  --ring: rgba(96,165,250,.25);
  --grad: radial-gradient(1200px 600px at 100% -10%, #0b253f, transparent 60%),
          radial-gradient(800px 400px at -10% 10%, #1f2937, transparent 40%);
}
*{box-sizing:border-box}
html,body{
  margin:0; padding:0; background:var(--bg); color:var(--text);
  background-image:var(--grad);
  font-family:"Vazirmatn","Noto Sans Arabic",Tahoma,sans-serif;
  line-height:1.6; -webkit-tap-highlight-color:transparent;
}
button,input,select,textarea{font-family:inherit}
img{display:block}

.appbar{position:sticky;top:0;z-index:10;background:linear-gradient(to bottom,rgba(255,255,255,.75),rgba(255,255,255,.35));backdrop-filter:blur(10px);padding:10px 16px 12px;border-bottom:1px solid rgba(0,0,0,.04);display:flex;flex-direction:column;gap:10px}
:root.dark .appbar{background:linear-gradient(to bottom,rgba(14,20,30,.7),rgba(14,20,30,.35));border-color:rgba(255,255,255,.06)}
.brand{margin:0 auto;font-size:24px;letter-spacing:.3px;direction:ltr;unicode-bidi:isolate}

.status{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}
.status .dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 6px rgba(34,197,94,.12)}
.timebox{display:flex;flex-direction:column;line-height:1.1}
.timebox #irTime{font-weight:800;font-size:18px}
.timebox #irDate{color:var(--muted);font-size:12px}
.icon-btn{width:40px;height:40px;border-radius:12px;border:0;background:var(--card);box-shadow:var(--shadow);cursor:pointer;display:grid;place-items:center;transition:transform .1s ease,box-shadow .2s ease}
.icon-btn:active{transform:scale(.96)} .i{font-size:18px}

.seg{align-self:center;background:var(--surface);border-radius:999px;padding:4px;display:inline-flex;gap:4px}
.seg-btn{border:0;background:transparent;padding:8px 14px;border-radius:999px;font-weight:700;cursor:pointer;color:var(--text)}
.seg-btn.active{background:var(--card);box-shadow:var(--shadow)}

.section{display:none;padding:14px 16px calc(96px + env(safe-area-inset-bottom,0px))}
.section.active{display:block}
.row{display:flex;gap:10px;align-items:center}
.row.between{justify-content:space-between}
.row.controls{gap:8px}
.unit-toggle{display:flex;align-items:center;gap:8px}

.btn-primary{height:38px;padding:0 14px;border-radius:12px;border:0;background:var(--accent);color:#fff;font-weight:800;cursor:pointer;box-shadow:0 6px 20px rgba(59,130,246,.25)}
.btn-primary:hover{background:var(--accent-strong)}

.searchbar{display:grid;grid-template-columns:auto 1fr;gap:8px;align-items:center;margin:8px 0 4px}
.searchbar input{height:42px;border-radius:12px;border:1px solid #e5e7eb;padding:0 12px;background:#fff;outline:none}
.searchbar input:focus{box-shadow:0 0 0 4px var(--ring)}
:root.dark .searchbar input{background:#0b1220;border-color:#223147;color:#e5e7eb}

.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));margin-top:12px}
.card{background:var(--card);backdrop-filter:blur(8px);border-radius:24px;box-shadow:var(--shadow);padding:14px;position:relative;overflow:hidden;transition:transform .12s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(0,0,0,.12)}
.title{display:flex;align-items:center;gap:10px;margin:0 0 6px}
.title .badge{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#fff;box-shadow:0 2px 6px rgba(0,0,0,.15);font-size:12px;flex:0 0 28px;overflow:hidden}
:root.dark .title .badge{background:#0f172a;color:#e5e7eb;border:1px solid rgba(255,255,255,.04)}
.code{font-size:11px;color:var(--muted)}
.price{font-size:22px;font-weight:900;margin:6px 0}
.sub{font-size:12px;color:var(--muted)}
.delta{font-size:12px;font-weight:800;padding:2px 8px;border-radius:999px;display:inline-block}
.delta.up{color:#065f46;background:rgba(16,185,129,.12)}
.delta.down{color:#991b1b;background:rgba(239,68,68,.12)}
.delta.muted{color:var(--muted);background:rgba(148,163,184,.12)}
.sparkline{height:48px;display:flex;align-items:center;justify-content:center;margin:6px 0}
.sparkline svg{width:100%;height:48px}

.switch{position:relative;display:inline-block;width:52px;height:28px}
.switch input{opacity:0;width:0;height:0}
.slider{position:absolute;cursor:pointer;inset:0;background:#d1d5db;border-radius:999px;transition:.2s}
.slider:before{content:"";position:absolute;height:24px;width:24px;left:2px;top:2px;background:white;border-radius:50%;transition:.2s;box-shadow:0 2px 6px rgba(0,0,0,.2)}
:root.dark .slider{background:#1f2937}
:root.dark .slider:before{background:#0b1220}
input:checked + .slider{background:var(--accent)}
input:checked + .slider:before{transform:translateX(24px)}

.tabbar{position:fixed;left:0;right:0;bottom:0;background:var(--card);backdrop-filter:blur(10px);border-top:1px solid rgba(0,0,0,.06);padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px));display:flex;justify-content:center}
.refresh-btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:14px;padding:10px 16px;background:#fff;box-shadow:var(--shadow);font-weight:900;cursor:pointer;transition:transform .1s ease,background .2s ease}
.refresh-btn .icon{width:18px;height:18px;fill:var(--accent)}
.refresh-btn:hover{background:#f8fafc}
:root.dark .refresh-btn{background:#0f172a;color:#e5e7eb}
:root.dark .refresh-btn:hover{background:#0b1220}
.refresh-btn.loading{opacity:.9}
.refresh-btn.loading .icon{animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(-360deg)}}

.about{text-align:center;font-size:13px;color:var(--muted);padding:10px;margin-bottom:80px}
.about a{color:var(--accent);text-decoration:none}
.about a:hover{text-decoration:underline}

/* موبایل */
@media (max-width:768px){
  .brand{font-size:20px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
  .card{border-radius:20px;padding:12px}
  .price{font-size:20px}
  .searchbar{grid-template-columns:auto 1fr}
  .seg{transform:scale(.98)}
}