/* ============================================================
   CryptoChart PWA — استایل حرفه‌ای (لاگین + بازار + تب‌ها)
   ============================================================ */

:root {
  --bg: #0a0d13;
  --bg-soft: #10141d;
  --card: #131824;
  --card2: #171d2b;
  --card-border: #222a3a;
  --txt: #e9edf5;
  --txt-dim: #8b95a8;
  --accent: #f5b942;
  --accent-soft: rgba(245, 185, 66, .13);
  --up: #26c281;
  --down: #f5526c;
  --radius: 16px;
  --nav-h: 64px;
  --shadow: 0 8px 28px rgba(0, 0, 0, .4);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: Vazirmatn, "Segoe UI", Tahoma, sans-serif;
  background: var(--bg);
  color: var(--txt);
  line-height: 1.65;
  overscroll-behavior-y: none;
}

button { font-family: inherit; }
.hidden { display: none !important; }

/* ================= صفحهٔ ورود ================= */
.login-screen {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(800px 400px at 80% 0%, rgba(245, 185, 66, .10), transparent 60%),
    radial-gradient(600px 300px at 15% 100%, rgba(38, 194, 129, .07), transparent 60%),
    var(--bg);
  padding: 20px;
}

.login-box {
  width: 100%; max-width: 340px;
  text-align: center;
  padding: 36px 26px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 22px;
  box-shadow: var(--shadow);
  animation: rise .5s ease both;
}

@keyframes rise { from { opacity: 0; transform: translateY(22px); } }

.login-logo { width: 74px; height: 74px; margin-bottom: 10px; }
.login-box h1 { font-size: 22px; font-weight: 900; margin-bottom: 4px; }
.login-sub { font-size: 12.5px; color: var(--txt-dim); margin-bottom: 24px; }

.pin-dots {
  display: flex; gap: 14px; justify-content: center; margin-bottom: 26px;
}
.pin-dots span {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid var(--card-border);
  background: var(--bg-soft);
  transition: all .18s;
}
.pin-dots span.f {
  background: var(--accent); border-color: var(--accent);
  box-shadow: 0 0 10px rgba(245, 185, 66, .5);
  transform: scale(1.12);
}
.pin-dots.shake { animation: shake .4s; }
@keyframes shake {
  20%, 60% { transform: translateX(-9px); }
  40%, 80% { transform: translateX(9px); }
}

.pin-pad {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 11px;
  max-width: 250px; margin: 0 auto;
}
.pk {
  padding: 15px 0; font-size: 19px; font-weight: 800;
  background: var(--bg-soft); color: var(--txt);
  border: 1px solid var(--card-border); border-radius: 14px;
  cursor: pointer; transition: all .13s;
  -webkit-tap-highlight-color: transparent;
}
.pk:active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); transform: scale(.94); }
.pk.del { color: var(--txt-dim); }
.pk.ok  { background: var(--accent); color: #1a1205; border-color: var(--accent); }
.pk.ok:active { filter: brightness(1.15); }

.hint { font-size: 12px; color: var(--txt-dim); min-height: 18px; margin-top: 12px; }
.hint.err { color: var(--down); }
.hint.ok  { color: var(--up); }

/* ================= اپ اصلی ================= */
.app-screen { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 11px 16px;
  background: rgba(10, 13, 19, .82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
}

.brand { display: flex; gap: 10px; align-items: center; }
.brand h1 { font-size: 16.5px; font-weight: 900; line-height: 1.2; }
.brand .sub { font-size: 11px; color: var(--txt-dim); }
.brand .sub.ok  { color: var(--up); }
.brand .sub.bad { color: var(--down); }

/* ---- نشانگر اتصال ---- */
.conn {
  display: flex; align-items: center; gap: 7px;
  font-size: 11.5px; color: var(--txt-dim);
  background: var(--bg-soft);
  border: 1px solid var(--card-border);
  padding: 5px 11px; border-radius: 999px;
}
.conn i { width: 8px; height: 8px; border-radius: 50%; background: #888; }
.conn[data-state="online"] i   { background: var(--up); box-shadow: 0 0 8px var(--up); }
.conn[data-state="offline"] i  { background: var(--down); }
.conn[data-state="connecting"] i { background: #d29b2c; animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: .3; } }

/* ================= ساختار تب‌ها ================= */
main {
  flex: 1;
  max-width: 720px; margin: 0 auto; width: 100%;
  padding: 14px 14px calc(var(--nav-h) + 26px);
}

.tab { display: none; animation: fadein .25s ease; }
.tab.show { display: block; }
@keyframes fadein { from { opacity: 0; transform: translateY(8px); } }

/* ---- کارت‌ها ---- */
.card {
  background: linear-gradient(180deg, var(--card2), var(--card));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 15px;
  margin-bottom: 13px;
  box-shadow: var(--shadow);
}

.card h2 {
  font-size: 13px; font-weight: 800; color: var(--txt-dim);
  margin-bottom: 11px;
  display: flex; align-items: center; gap: 8px;
}
.card h2::before {
  content: ""; width: 4px; height: 15px; border-radius: 2px;
  background: var(--accent);
}

/* ---- هدر ارز (hero) ---- */
.hero {
  background:
    radial-gradient(500px 200px at 85% 0%, rgba(245, 185, 66, .12), transparent 65%),
    linear-gradient(180deg, var(--card2), var(--card));
  border-color: rgba(245, 185, 66, .22);
}

.hero-top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 4px;
}

.coin-hero { display: flex; align-items: center; gap: 12px; }
.coin-hero img {
  width: 52px; height: 52px; border-radius: 50%;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .45);
  background: var(--bg-soft);
}
.p-symbol { font-size: 19px; font-weight: 900; line-height: 1.25; }
.p-pair { font-size: 11.5px; color: var(--txt-dim); direction: ltr; text-align: left; }

.hero-price { text-align: left; }
.p-value {
  font-size: 27px; font-weight: 900; direction: ltr;
  font-variant-numeric: tabular-nums; transition: color .25s;
}
.p-value.up { color: var(--up); }
.p-value.down { color: var(--down); }
.p-change { font-size: 13px; font-weight: 800; direction: ltr; }
.p-change.up { color: var(--up); }
.p-change.down { color: var(--down); }
.p-meta { font-size: 11.5px; color: var(--txt-dim); direction: ltr; text-align: right; }

/* ---- لیست بازار ---- */
.market-list { display: grid; gap: 7px; }

.mkt {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  background: var(--bg-soft); border: 1px solid var(--card-border);
  border-radius: 13px; cursor: pointer;
  transition: all .16s;
  text-align: right; width: 100%;
}
.mkt:hover { border-color: var(--accent); }
.mkt.on {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 0 1px var(--accent);
}
.mkt img { width: 38px; height: 38px; border-radius: 50%; background: var(--bg); }
.mkt .m-name { flex: 1; min-width: 0; }
.mkt .m-sym { font-size: 14.5px; font-weight: 800; direction: ltr; text-align: right; }
.mkt .m-nm { font-size: 11px; color: var(--txt-dim); }
.mkt .m-price { font-size: 13.5px; font-weight: 800; direction: ltr; font-variant-numeric: tabular-nums; }
.mkt .m-chg {
  font-size: 11.5px; font-weight: 800; direction: ltr;
  padding: 2px 9px; border-radius: 999px;
}
.mkt .m-chg.up { color: var(--up); background: rgba(38, 194, 129, .12); }
.mkt .m-chg.down { color: var(--down); background: rgba(245, 82, 108, .12); }

/* ---- چیپ‌ها ---- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 8px 15px; border-radius: 999px; cursor: pointer;
  background: var(--bg-soft); border: 1px solid var(--card-border);
  color: var(--txt-dim); font-size: 13px; font-weight: 700;
  transition: all .16s; font-variant-numeric: tabular-nums;
}
.chip:hover { border-color: var(--accent); color: var(--txt); }
.chip.on { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* ---- گرید نوع چارت ---- */
.grid2 { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 9px; }
.type-btn {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 12px 8px; cursor: pointer;
  background: var(--bg-soft); color: var(--txt-dim);
  border: 1px solid var(--card-border); border-radius: 12px;
  font-size: 12.5px; font-weight: 800;
  transition: all .16s;
}
.type-btn.on { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.type-btn svg { width: 58px; height: 33px; }

/* ---- سگمنت ---- */
.segmented {
  display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
  background: var(--bg-soft); border: 1px solid var(--card-border);
  border-radius: 12px; overflow: hidden;
}
.segmented + .segmented { margin-top: 10px; }
.segmented button {
  padding: 10px 6px; background: transparent; border: none;
  border-left: 1px solid var(--card-border);
  color: var(--txt-dim); font-size: 13px; font-weight: 700; cursor: pointer;
  transition: all .16s;
}
.segmented button:last-child { border-left: none; }
.segmented button.on { background: var(--accent-soft); color: var(--accent); }

/* ---- تم‌ها ---- */
.themes { display: grid; grid-template-columns: repeat(auto-fill, minmax(105px, 1fr)); gap: 9px; }
.theme-btn {
  border: 2px solid var(--card-border); border-radius: 12px; overflow: hidden;
  background: var(--bg-soft); cursor: pointer; padding: 0;
  transition: border-color .16s, transform .16s;
}
.theme-btn.on { border-color: var(--accent); transform: translateY(-2px); }
.theme-btn .sw { height: 42px; display: block; }
.theme-btn .nm {
  display: block; padding: 6px; font-size: 11.5px; font-weight: 800;
  color: var(--txt-dim); border-top: 1px solid var(--card-border);
}
.theme-btn.on .nm { color: var(--accent); }

/* ---- کلیدها ---- */
.toggles { display: grid; gap: 3px; }
.switch-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 2px; cursor: pointer; font-size: 14px;
}
.switch-row + .switch-row { border-top: 1px solid var(--card-border); }
.switch { position: relative; width: 46px; height: 26px; flex: 0 0 auto; }
.switch input { opacity: 0; width: 100%; height: 100%; position: absolute; cursor: pointer; z-index: 2; }
.switch i {
  position: absolute; inset: 0; border-radius: 999px;
  background: var(--card-border); transition: background .2s;
}
.switch i::after {
  content: ""; position: absolute; top: 3px; right: 3px;
  width: 20px; height: 20px; border-radius: 50%;
  background: #fff; transition: transform .2s;
}
.switch input:checked + i { background: var(--up); }
.switch input:checked + i::after { transform: translateX(-20px); }

/* ---- اسلایدرها ---- */
.slider-row { margin-top: 13px; }
.slider-head {
  display: flex; justify-content: space-between; font-size: 13px;
  color: var(--txt-dim); margin-bottom: 7px;
}
.slider-head b { color: var(--txt); }
input[type="range"] {
  width: 100%; appearance: none; height: 6px; border-radius: 3px;
  background: var(--card-border); outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none; width: 20px; height: 20px; border-radius: 50%;
  background: var(--accent); cursor: pointer;
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--accent);
}

/* ---- ورودی ---- */
.field-inline { display: flex; gap: 8px; margin-top: 12px; }
input[type="text"] {
  flex: 1; padding: 10px 13px; border-radius: 11px;
  border: 1px solid var(--card-border); background: var(--bg-soft);
  color: var(--txt); font: inherit; font-size: 14px;
  direction: ltr; text-align: left; outline: none;
  transition: border-color .18s;
}
input[type="text"]:focus { border-color: var(--accent); }

/* ---- دکمه‌ها ---- */
.btn {
  padding: 10px 18px; border-radius: 11px; border: none; cursor: pointer;
  font-size: 13.5px; font-weight: 800;
  background: var(--accent); color: #1a1205;
  transition: filter .16s;
}
.btn:hover { filter: brightness(1.1); }
.btn.ghost {
  background: var(--bg-soft); color: var(--txt);
  border: 1px solid var(--card-border);
}
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn.danger { background: rgba(245, 82, 108, .14); color: var(--down); border: 1px solid rgba(245, 82, 108, .35); }
.btn.wide { display: block; width: 100%; margin-bottom: 9px; }
.btn:last-child { margin-bottom: 0; }

/* ---- اطلاعات سرور ---- */
.server-info { display: grid; gap: 7px; font-size: 12.5px; }
.server-info .row {
  display: flex; justify-content: space-between; gap: 10px;
  padding: 8px 10px; border-radius: 10px;
  background: var(--bg-soft); border: 1px solid var(--card-border);
}
.server-info .row b { direction: ltr; }
.server-info .ok  { color: var(--up); }
.server-info .bad { color: var(--down); }

/* ---- ناوبری پایین ---- */
.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 60;
  display: flex; justify-content: center; gap: 6px;
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  background: rgba(13, 17, 26, .92);
  backdrop-filter: blur(18px);
  border-top: 1px solid var(--card-border);
}
.nav-btn {
  flex: 1; max-width: 200px;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 7px 12px; border: none; border-radius: 13px;
  background: transparent; color: var(--txt-dim);
  font-size: 11px; font-weight: 700; cursor: pointer;
  transition: all .16s;
  -webkit-tap-highlight-color: transparent;
}
.nav-btn svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.nav-btn.on { color: var(--accent); background: var(--accent-soft); }

/* ---- ریسپانسیو ---- */
@media (min-width: 560px) {
  main { padding-top: 20px; }
  .p-value { font-size: 34px; }
  .coin-hero img { width: 60px; height: 60px; }
}