/* Studio login — refined auth surface */

:root {
  --login-bg-0: #070a0e;
  --login-bg-1: #0f151c;
  --login-panel: rgba(22, 28, 36, 0.78);
  --login-panel-border: rgba(232, 220, 196, 0.14);
  --login-text: #f3efe6;
  --login-muted: #9aa3b0;
  --login-line: rgba(232, 220, 196, 0.16);
  --login-accent: #2dd4bf;
  --login-accent-2: #5eead4;
  --login-danger: #fb7185;
  --login-radius: 20px;
  --login-control: #121820;
  --login-shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
  --login-font: "main-font", IRANYekanFN, Tahoma, sans-serif;
}

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

html,
body {
  min-height: 100%;
}

body.studio-login {
  margin: 0;
  font-family: var(--login-font);
  color: var(--login-text);
  background: var(--login-bg-0);
  -webkit-font-smoothing: antialiased;
}

.login-shell {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  overflow: hidden;
}

.login-ambiance {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 480px at 85% 10%, rgba(45, 212, 191, 0.16), transparent 55%),
    radial-gradient(700px 420px at 10% 90%, rgba(94, 234, 212, 0.08), transparent 50%),
    linear-gradient(160deg, var(--login-bg-0), var(--login-bg-1) 55%, #0a1016);
}

.login-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.55;
  animation: loginFloat 12s ease-in-out infinite;
}

.login-orb-a {
  width: 22rem;
  height: 22rem;
  top: -6rem;
  left: -4rem;
  background: rgba(45, 212, 191, 0.22);
}

.login-orb-b {
  width: 18rem;
  height: 18rem;
  right: -5rem;
  bottom: 8%;
  background: rgba(14, 165, 233, 0.14);
  animation-delay: -4s;
}

.login-grid {
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(243, 239, 230, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 239, 230, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, black 30%, transparent 78%);
}

@keyframes loginFloat {
  0%,
  100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(12px, -18px, 0) scale(1.04); }
}

.login-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 420px);
  padding: clamp(1.5rem, 4vw, 2.15rem);
  border-radius: var(--login-radius);
  border: 1px solid var(--login-panel-border);
  background: var(--login-panel);
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
  box-shadow: var(--login-shadow);
  animation: loginIn 0.55s ease both;
}

@keyframes loginIn {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.login-head {
  margin-bottom: 1.55rem;
  text-align: center;
}

.login-brand {
  display: block;
  width: 4.5rem;
  height: 4.5rem;
  margin: 0 auto 0.9rem;
  border-radius: 1rem;
  object-fit: contain;
}

.login-kicker {
  margin: 0 0 0.45rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--login-accent);
}

.login-title {
  margin: 0 0 0.55rem;
  font-size: clamp(1.55rem, 4vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.25;
}

.login-lead {
  margin: 0;
  color: var(--login-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.login-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: #d7d2c8;
}

.login-control {
  position: relative;
  display: flex;
  align-items: center;
}

.login-icon {
  position: absolute;
  right: 0.95rem;
  color: var(--login-muted);
  font-size: 1rem;
  pointer-events: none;
}

.login-control input {
  width: 100%;
  min-height: 3.05rem;
  padding: 0.75rem 2.65rem 0.75rem 2.85rem;
  border: 1px solid var(--login-line);
  border-radius: 12px;
  background: var(--login-control);
  color: var(--login-text);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.login-control input::placeholder {
  color: #6b7380;
}

.login-control input:hover {
  border-color: rgba(45, 212, 191, 0.35);
}

.login-control input:focus {
  border-color: var(--login-accent);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.18);
  background: #151c25;
}

.login-eye {
  position: absolute;
  left: 0.35rem;
  display: inline-grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--login-muted);
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.login-eye:hover,
.login-eye:focus-visible {
  color: var(--login-accent-2);
  background: rgba(45, 212, 191, 0.1);
  outline: none;
}

.login-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: -0.15rem;
}

.login-check {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  cursor: pointer;
  user-select: none;
  color: var(--login-muted);
  font-size: 0.86rem;
}

.login-check input {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--login-accent);
  cursor: pointer;
}

.login-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 3.1rem;
  margin-top: 0.25rem;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, #2dd4bf 0%, #14b8a6 55%, #0d9488 100%);
  color: #042f2e;
  font-family: inherit;
  font-size: 0.98rem;
  font-weight: 750;
  cursor: pointer;
  box-shadow: 0 12px 28px rgba(45, 212, 191, 0.22);
  transition: transform 0.15s ease, filter 0.15s ease, box-shadow 0.15s ease;
}

.login-submit:hover:not(:disabled) {
  filter: brightness(1.05);
  box-shadow: 0 14px 32px rgba(45, 212, 191, 0.3);
}

.login-submit:active:not(:disabled) {
  transform: translateY(1px);
}

.login-submit:disabled {
  opacity: 0.72;
  cursor: wait;
}

.login-submit .spinner-border {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 0.15em solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  color: #042f2e;
  animation: loginSpin 0.7s linear infinite;
  vertical-align: -0.1em;
}

@keyframes loginSpin {
  to { transform: rotate(360deg); }
}

.login-alert {
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  border: 1px solid rgba(251, 113, 133, 0.35);
  background: rgba(251, 113, 133, 0.12);
  color: #fecdd3;
  font-size: 0.88rem;
  line-height: 1.55;
}

.session-banner {
  margin-bottom: 1rem;
  padding: 0.85rem 0.95rem;
  border-radius: 12px;
  border: 1px solid rgba(45, 212, 191, 0.28);
  background: rgba(45, 212, 191, 0.1);
  color: #d7fff7;
  font-size: 0.86rem;
  line-height: 1.65;
}

.session-banner a {
  color: var(--login-accent-2);
  font-weight: 700;
  text-decoration: none;
}

.session-banner a:hover {
  text-decoration: underline;
}

.login-foot {
  margin-top: 1.35rem;
  text-align: center;
  color: #6f7885;
  font-size: 0.75rem;
}

.d-none {
  display: none !important;
}

@media (max-width: 575.98px) {
  .login-shell {
    padding: 1rem;
    align-items: stretch;
  }

  .login-panel {
    width: 100%;
    margin-block: auto;
    padding: 1.35rem 1.15rem 1.25rem;
    border-radius: 16px;
  }

  .login-title {
    font-size: 1.45rem;
  }

  .login-control input {
    min-height: 2.9rem;
    font-size: 16px; /* prevent iOS zoom */
  }

  .login-orb-a,
  .login-orb-b {
    opacity: 0.35;
  }
}

@media (prefers-reduced-motion: reduce) {
  .login-orb,
  .login-panel {
    animation: none;
  }
}