.tc-auth-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 18%, rgba(45, 212, 191, 0.22), transparent 28%),
    radial-gradient(circle at 82% 12%, rgba(59, 130, 246, 0.2), transparent 30%),
    linear-gradient(145deg, #03120f 0%, #08111f 46%, #111827 100%);
  color: #f8fafc;
}

:root:not([data-theme="dark"]) .tc-auth-page {
  background:
    radial-gradient(circle at 15% 18%, rgba(45, 212, 191, 0.2), transparent 28%),
    radial-gradient(circle at 82% 12%, rgba(14, 165, 233, 0.16), transparent 30%),
    linear-gradient(145deg, #f8fffd 0%, #eefcf8 46%, #e8f1ff 100%);
  color: #0f172a;
}

.tc-auth-shell {
  position: relative;
  z-index: 10;
  display: flex;
  min-height: 100vh;
  width: 100%;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
}

.tc-auth-card {
  width: min(100%, 448px);
  border: 1px solid rgba(94, 234, 212, 0.24);
  border-radius: 24px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(238, 252, 249, 0.9)),
    radial-gradient(circle at top right, rgba(14, 165, 233, 0.18), transparent 34%);
  box-shadow: 0 24px 64px rgba(2, 6, 23, 0.36);
  color: #0f172a;
  padding: 30px;
}

.tc-auth-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
}

.tc-auth-brand__text {
  color: #111827;
  font-size: 25px;
  font-weight: 850;
  letter-spacing: -0.04em;
}

.tc-auth-brand__mark {
  display: inline-flex;
  width: 50px;
  height: 50px;
  align-items: center;
  justify-content: center;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: #0f172a;
}

.tc-auth-brand__mark img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.tc-auth-form {
  display: grid;
  gap: 18px;
  margin-top: 16px;
}

.tc-auth-field {
  display: grid;
  gap: 8px;
}

.tc-auth-label {
  color: #334155;
  font-size: 13px;
  font-weight: 800;
}

.tc-auth-input {
  box-sizing: border-box;
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(15, 23, 42, 0.18);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.88);
  color: #0f172a;
  font-size: 15px;
  outline: none;
  padding: 0 14px;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.tc-auth-input:focus {
  border-color: rgba(20, 184, 166, 0.78);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.16);
}

.tc-auth-input:read-only {
  background: rgba(241, 245, 249, 0.9);
  color: #475569;
}

.tc-auth-primary,
.tc-auth-secondary {
  min-height: 48px;
  border-radius: 13px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 850;
  padding: 0 16px;
  transition: filter 160ms ease, opacity 160ms ease, transform 160ms ease;
}

.tc-auth-primary {
  border: 0;
  background: linear-gradient(135deg, #0f766e, #14b8a6);
  box-shadow: 0 16px 34px rgba(13, 148, 136, 0.22);
  color: white;
}

.tc-auth-secondary {
  border: 1px solid rgba(15, 23, 42, 0.14);
  background: rgba(241, 245, 249, 0.9);
  color: #334155;
}

.tc-auth-primary:hover:not(:disabled),
.tc-auth-secondary:hover:not(:disabled) {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.tc-auth-primary:disabled,
.tc-auth-secondary:disabled {
  cursor: not-allowed;
  filter: grayscale(0.2);
  opacity: 0.56;
}

.tc-auth-link {
  justify-self: end;
  color: #0f766e;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.tc-auth-link:hover {
  text-decoration: underline;
}

.tc-auth-message {
  display: none;
  border: 1px solid rgba(14, 165, 233, 0.22);
  border-radius: 14px;
  background: #e0f2fe;
  color: #0f172a;
  font-size: 14px;
  line-height: 1.45;
  margin-bottom: 18px;
  padding: 12px 14px;
  text-align: center;
}

.tc-auth-message[data-kind="error"] {
  border-color: rgba(239, 68, 68, 0.22);
  background: #fee2e2;
}

.tc-auth-message[data-kind="success"] {
  border-color: rgba(34, 197, 94, 0.22);
  background: #dcfce7;
}

.tc-auth-instructions {
  color: #64748b;
  font-size: 12px;
  line-height: 1.5;
  margin: 22px auto 0;
  max-width: 360px;
  text-align: center;
}

.tc-auth-hidden,
.hidden.tc-auth-hidden {
  display: none !important;
}

:root[data-theme="dark"] .tc-auth-card,
.tc-auth-card.tc-auth-card--dark {
  border-color: rgba(94, 234, 212, 0.22);
  background:
    linear-gradient(145deg, rgba(15, 23, 42, 0.94), rgba(6, 78, 59, 0.74)),
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.22), transparent 34%);
  color: #f8fafc;
}

:root[data-theme="dark"] .tc-auth-brand__text,
.tc-auth-card.tc-auth-card--dark .tc-auth-brand__text {
  color: #f8fafc;
}

:root[data-theme="dark"] .tc-auth-brand__mark,
.tc-auth-card.tc-auth-card--dark .tc-auth-brand__mark {
  color: #e6fffb;
}

:root[data-theme="dark"] .tc-auth-brand__mark img.brand-logo,
.tc-auth-card.tc-auth-card--dark .tc-auth-brand__mark img.brand-logo {
  filter: invert(1);
}

:root[data-theme="dark"] .tc-auth-label,
.tc-auth-card.tc-auth-card--dark .tc-auth-label {
  color: #dbeafe;
}

:root[data-theme="dark"] .tc-auth-input,
.tc-auth-card.tc-auth-card--dark .tc-auth-input {
  border-color: rgba(148, 163, 184, 0.28);
  background: rgba(15, 23, 42, 0.72);
  color: #f8fafc;
}

:root[data-theme="dark"] .tc-auth-input:read-only,
.tc-auth-card.tc-auth-card--dark .tc-auth-input:read-only {
  background: rgba(15, 23, 42, 0.42);
  color: #cbd5e1;
}

:root[data-theme="dark"] .tc-auth-secondary,
.tc-auth-card.tc-auth-card--dark .tc-auth-secondary {
  border-color: rgba(148, 163, 184, 0.28);
  background: rgba(15, 23, 42, 0.62);
  color: #e2e8f0;
}

:root[data-theme="dark"] .tc-auth-link,
.tc-auth-card.tc-auth-card--dark .tc-auth-link {
  color: #5eead4;
}

:root[data-theme="dark"] .tc-auth-instructions,
.tc-auth-card.tc-auth-card--dark .tc-auth-instructions {
  color: #b6c6dc;
}

@media (max-width: 560px) {
  .tc-auth-shell {
    padding: 24px 14px;
  }

  .tc-auth-card {
    border-radius: 22px;
    padding: 24px 20px;
  }
}