/* ==========================================================================
   login.php — هم‌سبک با بقیه صفحات پنل (کارت‌ها، فیلدها و دکمه‌های .ux)
   ========================================================================== */

html { overflow-x: hidden; }

.lg {
  --lg-r: 18px;
  --lg-r-sm: 12px;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 28px 16px 64px;
  position: relative;
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
}

.lg *,
.lg *::before,
.lg *::after { box-sizing: border-box; }

/* ---------- پس‌زمینه: حلقه‌های رادار ---------- */
.lg-stage {
  position: fixed;
  inset: 0;
  overflow: hidden;
  contain: paint;
  pointer-events: none;
  background:
    radial-gradient(60% 50% at 50% 38%, var(--accent-weak), transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 50% 46%, #000 0, #000 38%, transparent 78%);
  mask-image: radial-gradient(circle at 50% 46%, #000 0, #000 38%, transparent 78%);
}

.lg-ring {
  --d: 640px;
  position: absolute;
  left: 50%;
  top: 46%;
  width: var(--d);
  height: var(--d);
  margin: calc(var(--d) / -2) 0 0 calc(var(--d) / -2);
  border: 1px solid var(--border);
  border-radius: 50%;
  will-change: transform;
  animation: lgOrbit var(--t, 120s) linear infinite;
}

.lg-ring i {
  position: absolute;
  top: -4px;
  left: 50%;
  width: 8px;
  height: 8px;
  margin-left: -4px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px var(--accent-weak);
}

.lg-ring:nth-child(1) { --d: 560px;  --t: 90s; }
.lg-ring:nth-child(2) { --d: 800px;  --t: 140s; animation-direction: reverse; }
.lg-ring:nth-child(3) { --d: 1060px; --t: 120s; }
.lg-ring:nth-child(4) { --d: 1340px; --t: 190s; animation-direction: reverse; }
.lg-ring:nth-child(2) i { background: var(--success); box-shadow: 0 0 0 5px var(--success-weak); }

.lg-pulse {
  position: absolute;
  left: 50%;
  top: 46%;
  width: 460px;
  height: 460px;
  margin: -230px 0 0 -230px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  opacity: 0;
}

.lg.is-auth .lg-pulse { animation: lgPulse 1.5s ease-out infinite; }

@keyframes lgOrbit { to { transform: rotate(360deg); } }
@keyframes lgPulse { from { transform: scale(.6); opacity: .5; } to { transform: scale(2.2); opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  .lg-ring, .lg.is-auth .lg-pulse { animation: none; }
}

/* ---------- دکمه تم ---------- */
.lg-theme {
  position: fixed;
  top: 16px;
  inset-inline-start: 16px;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text-2);
  font-size: 15px;
  cursor: pointer;
  transition: background .15s, color .15s, transform .12s;
}

.lg-theme:hover { background: var(--surface-2); color: var(--text); transform: translateY(-1px); }

/* ---------- کارت ---------- */
.lg-card {
  position: relative;
  z-index: 2;
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--lg-r);
  box-shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 24px 60px -24px rgba(15, 23, 42, .28);
  overflow: hidden;
}

[data-bs-theme="dark"] .lg-card {
  box-shadow: 0 1px 0 rgba(255, 255, 255, .02) inset, 0 28px 70px -24px rgba(0, 0, 0, .7);
}

.lg-head {
  padding: 30px 28px 22px;
  text-align: center;
}

.lg-mark {
  display: inline-grid;
  place-items: center;
  width: 60px;
  height: 60px;
  margin-bottom: 16px;
  border-radius: 18px;
  background: var(--accent-weak);
  color: var(--accent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent);
}

.lg-head h1 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.3;
}

.lg-head p {
  margin: 7px 0 0;
  color: var(--text-3);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: .72rem;
  letter-spacing: .12em;
  direction: ltr;
}

/* ---------- فرم ---------- */
.lg-form {
  display: grid;
  gap: 16px;
  padding: 0 28px 26px;
}

.lg-field label {
  display: block;
  margin-bottom: 7px;
  font-size: 12.5px;
  font-weight: 800;
}

.lg-input { position: relative; }

.lg-input > i {
  position: absolute;
  top: 50%;
  inset-inline-start: 14px;
  transform: translateY(-50%);
  color: var(--text-3);
  font-size: 15px;
  pointer-events: none;
  transition: color .15s;
}

.lg-input:focus-within > i { color: var(--accent); }

.lg-input input {
  display: block;
  width: 100%;
  height: 48px;
  padding: 0 42px;
  border: 1px solid var(--border);
  border-radius: var(--lg-r-sm);
  outline: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px !important; /* جلوگیری از زوم iOS */
  transition: border-color .15s, box-shadow .15s;
}

.lg-input input[type="password"],
.lg-input input.is-ltr { direction: ltr; text-align: left; }

.lg-input input::placeholder { color: var(--text-3); direction: rtl; text-align: right; }

.lg-input input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-weak);
}

.lg-eye {
  position: absolute;
  top: 6px;
  inset-inline-end: 6px;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text-3);
  font-size: 15px;
  cursor: pointer;
  transition: background .15s, color .15s;
}

.lg-eye:hover { background: var(--surface-2); color: var(--accent); }

.lg-warn {
  display: none;
  align-items: center;
  gap: 9px;
  margin-top: 10px;
  padding: 9px 13px;
  border: 1px solid color-mix(in srgb, var(--warning) 35%, transparent);
  border-radius: 10px;
  background: var(--warning-weak);
  color: color-mix(in srgb, var(--warning) 55%, var(--text));
  font-size: .78rem;
  font-weight: 700;
  line-height: 1.7;
}

.lg-warn.show { display: flex; }
.lg-warn i { flex: none; color: var(--warning); font-size: .95rem; }
.lg-warn span { flex: 1 1 auto; min-width: 0; overflow-wrap: anywhere; }

.lg-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  height: 48px;
  margin-top: 4px;
  border: 1px solid var(--accent);
  border-radius: var(--lg-r-sm);
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--font);
  font-size: .92rem;
  font-weight: 800;
  cursor: pointer;
  transition: background .15s, border-color .15s, transform .12s;
}

.lg-submit i { transition: transform .2s; }
.lg-submit:hover { background: var(--accent-strong); border-color: var(--accent-strong); transform: translateY(-1px); }
.lg-submit:hover i { transform: translateX(-4px); }
.lg-submit:disabled { opacity: .75; cursor: default; transform: none; }

/* ---------- پایین کارت ---------- */
.lg-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 28px;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 55%, var(--surface));
}

.lg-foot span { color: var(--text-3); font-size: 12px; }

.lg-foot a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  padding: 0 13px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
  transition: border-color .15s, color .15s, transform .12s;
}

.lg-foot a:hover { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); transform: translateY(-1px); }

.lg-caption {
  position: fixed;
  bottom: 16px;
  left: 0;
  right: 0;
  z-index: 1;
  text-align: center;
  direction: ltr;
  color: var(--text-3);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: .66rem;
  letter-spacing: .22em;
}

@media (max-width: 520px) {
  .lg { padding-top: 64px; place-items: start center; }
  .lg-ring:nth-child(n+3) { display: none; }
  .lg-head { padding: 26px 20px 18px; }
  .lg-form { padding: 0 20px 22px; }
  .lg-foot { padding: 12px 20px; }
  .lg-caption { font-size: .56rem; letter-spacing: .14em; }
  .lg-warn { font-size: .73rem; }
}