/**
 * Auth pages — premium mobile-first sign-in and recovery flows.
 */

.auth-body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at top left, rgba(13,148,136,0.08), transparent 34%),
    radial-gradient(circle at top right, rgba(15,23,42,0.05), transparent 30%),
    var(--tb-bg);
}

.auth-topbar {
  position: sticky;
}

.auth-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tb-space-3);
  min-height: 72px;
}

.auth-topbar__brand {
  min-width: 0;
  gap: var(--tb-space-3);
}

.auth-topbar__brand-text {
  min-width: 0;
}

.auth-topbar__nav {
  justify-content: flex-end;
  gap: var(--tb-space-2);
}

.auth-topbar__cta {
  background: var(--tb-surface);
  border: 1px solid var(--tb-line);
}

.auth-layout {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 460px);
  max-width: 1160px;
  width: 100%;
  margin: 0 auto;
  align-items: stretch;
  min-height: 0;
}

.auth-panel {
  padding: clamp(20px, 3vw, 32px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth-panel-brand {
  background: linear-gradient(160deg, rgba(255,255,255,0.72) 0%, rgba(240,244,245,0.78) 60%, rgba(246,248,249,0.9) 100%);
  border-right: 1px solid var(--tb-line);
}

.auth-brand-block {
  max-width: 460px;
}

.auth-brand-mark {
  margin-bottom: var(--tb-space-4);
}

.auth-brand-title {
  font-size: clamp(1.9rem, 2.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin: 0 0 var(--tb-space-3);
  color: var(--tb-ink);
}

.auth-brand-lead {
  font-size: clamp(1rem, 1.3vw, 1.0625rem);
  line-height: var(--tb-leading-relaxed);
  margin: 0;
  max-width: 46ch;
}

.auth-brand-logo-wrap {
  margin-bottom: var(--tb-space-4);
}

.auth-brand-logo {
  max-height: 52px;
  max-width: 240px;
  width: auto;
  display: block;
  object-fit: contain;
}

.auth-brand-powered {
  margin: var(--tb-space-5) 0 0;
}

.auth-panel-brand[data-tb-branded-login="1"] {
  border-left: 4px solid var(--auth-brand-login, var(--tb-brand));
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.94) 0%, rgba(240, 253, 250, 0.9) 55%, rgba(248, 250, 252, 0.96) 100%);
}

.auth-body.tb-login-theme-dark {
  background: radial-gradient(circle at top left, rgba(20, 184, 166, 0.12), transparent 36%),
    radial-gradient(circle at 80% 0%, rgba(15, 23, 42, 0.35), transparent 42%),
    #0f172a;
}

.auth-body.tb-login-theme-dark .auth-brand-title {
  color: #f8fafc;
}

.auth-body.tb-login-theme-dark .auth-brand-lead,
.auth-body.tb-login-theme-dark .auth-brand-powered {
  color: #94a3b8;
}

.auth-body.tb-login-theme-dark .auth-panel-brand[data-tb-branded-login="1"] {
  background: linear-gradient(155deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.92) 100%);
  border-right-color: #1e293b;
}

.auth-body.tb-login-theme-dark .auth-panel-form .auth-form-card {
  background: #1e293b;
  border: 1px solid #334155;
  color: #e2e8f0;
}

.auth-body.tb-login-theme-dark .auth-form-card .field label {
  color: #e2e8f0;
}

.auth-form-card {
  padding: clamp(20px, 3vw, 32px);
  border-radius: 24px;
  box-shadow: var(--tb-shadow-md);
  max-width: 460px;
  width: 100%;
  margin-left: auto;
}

.auth-form-heading {
  font-size: clamp(1.45rem, 2vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: var(--tb-space-1) 0 var(--tb-space-2);
  line-height: var(--tb-leading-tight);
}

.auth-form-card .field label {
  font-weight: 700;
  color: var(--tb-ink);
}

.auth-form-card .input,
.auth-form-card select,
.auth-form-card textarea {
  min-height: 50px;
  padding: 12px 14px;
}

.auth-form-card .input[aria-invalid="true"],
.auth-form-card .input:invalid:not(:placeholder-shown) {
  border-color: var(--tb-danger-border);
}

.auth-lead {
  margin-top: 0;
  margin-bottom: var(--tb-space-5);
}

.auth-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tb-space-2);
  align-items: center;
  margin-bottom: var(--tb-space-4);
}

.auth-actions .btn {
  min-height: 48px;
}

.auth-meta-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tb-space-3);
  align-items: center;
  font-size: var(--tb-text-sm);
}

.auth-notice-stack {
  display: grid;
  gap: var(--tb-space-3);
  margin-bottom: var(--tb-space-4);
}

.auth-form-card .notice {
  margin: 0;
}

.field-error {
  font-size: var(--tb-text-xs);
  color: var(--tb-danger-text);
  margin-top: var(--tb-space-1);
}

@media (max-width: 980px) {
  .auth-layout {
    grid-template-columns: 1fr;
    max-width: 720px;
  }

  .auth-panel-brand {
    border-right: none;
    border-bottom: 1px solid var(--tb-line);
    padding-bottom: var(--tb-space-6);
  }

  .auth-form-card {
    margin-left: 0;
    max-width: none;
  }
}

@media (max-width: 760px) {
  .auth-topbar__inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: var(--tb-space-2);
    min-height: unset;
    padding: var(--tb-space-3) 0;
  }

  .auth-topbar__nav {
    width: 100%;
    justify-content: flex-start;
    gap: var(--tb-space-1);
    overflow-x: auto;
    padding-bottom: 2px;
    flex-wrap: nowrap;
    scrollbar-width: none;
  }

  .auth-topbar__nav::-webkit-scrollbar {
    display: none;
  }

  .auth-topbar__nav a {
    white-space: nowrap;
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    padding-inline: var(--tb-space-3);
  }

  .auth-topbar__hide-xs {
    display: none !important;
  }

  .auth-topbar .brand-mark {
    width: 38px;
    height: 38px;
  }

  .auth-topbar .brand-title {
    font-size: 0.95rem;
  }

  .auth-topbar .brand-tagline {
    font-size: 12px;
  }

  .auth-layout {
    max-width: none;
  }

  .auth-panel {
    padding: var(--tb-space-4);
  }

  .auth-panel-brand {
    padding-top: var(--tb-space-5);
    padding-bottom: var(--tb-space-5);
  }

  .auth-brand-title {
    font-size: clamp(1.6rem, 6.2vw, 2rem);
    max-width: 14ch;
  }

  .auth-brand-lead {
    font-size: 0.98rem;
  }

  .auth-form-card {
    border-radius: 20px;
    box-shadow: var(--tb-shadow-sm);
    padding: var(--tb-space-5);
  }

  .auth-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .auth-actions .btn {
    width: 100%;
  }

  .auth-meta-links {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--tb-space-2);
  }
}


/* Final logo integration */
.brand-logo--auth {
  height: 38px;
  max-width: 210px;
  width: auto;
  object-fit: contain;
}
.auth-brand-logo--default {
  max-height: 52px;
  max-width: 240px;
}
@media (max-width: 768px) {
  .brand-logo--auth {
    height: 32px;
    max-width: 170px;
  }
}