:root {
  --login-accent: #ce000a;
  --login-accent-strong: #a00008;
  --login-accent-soft: rgba(206, 0, 10, 0.2);
  --login-text: #1a2f40;
  --login-muted: #516474;
  --login-card-bg: rgba(255, 255, 255, 0.96);
  --login-card-border: rgba(15, 23, 42, 0.12);
  --login-overlay: rgba(11, 28, 45, 0.2);
}

.catalyst-auth {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

body {
  min-height: 100vh;
  background-color: #f4f7fb;
  background-image:
    radial-gradient(circle at top left, rgba(206, 0, 10, 0.09), transparent 34%),
    radial-gradient(circle at bottom right, rgba(160, 0, 8, 0.08), transparent 30%),
    linear-gradient(135deg, #f8fafc 0%, #eef3f8 48%, #e8eef5 100%);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  margin: 0;
  overflow: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.7) 0%, rgba(255, 255, 255, 0.4) 55%, rgba(255, 255, 255, 0.62) 100%),
    radial-gradient(circle at center, rgba(206, 0, 10, 0.03), transparent 58%);
  pointer-events: none;
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

@media (max-width: 900px) {
  body {
    overflow: auto;
  }
}

.auth-card {
  width: min(520px, 90%);
  background: var(--login-card-bg);
  border-radius: 1.5rem;
  padding: 2.75rem;
  border: 1px solid var(--login-card-border);
  box-shadow: 0 30px 70px -40px rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.brand-block {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: center;
  align-items: center;
}

.brand-logo {
  width: 260px;
  display: block;
}

.eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--login-accent);
  margin-bottom: 0.25rem;
  font-weight: 700;
}

.brand-block h1 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  margin: 0;
  color: var(--login-text);
}

.subtitle {
  margin: 0;
  color: var(--login-muted);
  font-size: 1rem;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  width: 100%;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.95rem;
  color: var(--login-text);
}

.field input {
  border-radius: 0.9rem;
  border: 1px solid #c6d3e1;
  padding: 0.9rem 1rem;
  font-size: 1rem;
  color: var(--login-text);
  background: #f8fafc;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
  width: 100%;
}

.field input:focus {
  border-color: var(--login-accent);
  box-shadow: 0 0 0 3px var(--login-accent-soft);
  background: #ffffff;
  outline: none;
}

.field small {
  font-size: 0.8rem;
  color: #dc2626;
}

.form-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--login-muted);
}

.remember {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.remember input {
  accent-color: var(--login-accent);
}

.form-meta a {
  color: var(--login-accent-strong);
  font-weight: 600;
  text-decoration: none;
}

.auth-form button {
  border: none;
  border-radius: 0.95rem;
  padding: 0.95rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(120deg, var(--login-accent), var(--login-accent-strong));
  box-shadow: 0 15px 45px -25px rgba(39, 90, 144, 0.8);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.auth-form button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 20px 55px -25px rgba(39, 90, 144, 0.9);
}

.auth-form button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.home-return-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 3rem;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(206, 0, 10, 0.28);
  border-radius: 0.95rem;
  color: var(--login-accent-strong);
  background: rgba(206, 0, 10, 0.08);
  font-size: 0.96rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.home-return-button::before {
  content: '←';
  margin-right: 0.5rem;
  font-size: 1.05rem;
  line-height: 1;
}

.home-return-button:hover {
  transform: translateY(-1px);
  border-color: rgba(206, 0, 10, 0.46);
  color: #123a5c;
  background: rgba(206, 0, 10, 0.13);
}

.register-hint {
  text-align: center;
  font-size: 0.95rem;
  color: var(--login-muted);
  margin: 0;
}

.register-hint a {
  color: var(--login-accent);
  font-weight: 600;
  text-decoration: none;
}

.alert {
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
}

.alert.error {
  background: rgba(254, 226, 226, 0.9);
  color: #991b1b;
}

.alert.success {
  background: rgba(220, 252, 231, 0.9);
  color: #14532d;
}

@media (max-width: 640px) {
  .catalyst-auth {
    padding: 1.5rem;
  }

  .auth-card {
    padding: 2rem;
    border-radius: 1.25rem;
  }

  .form-meta {
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }
}

.catalyst-auth--admin {
  width: 100%;
}

.catalyst-auth--admin .auth-card {
  width: min(560px, 92vw);
  gap: 1.6rem;
  padding: 2.5rem;
  border-radius: 1.75rem;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.32);
  box-shadow: 0 34px 80px -44px rgba(8, 24, 38, 0.8);
}

.catalyst-auth--admin .brand-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  text-align: center;
}

.catalyst-auth--admin .brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.catalyst-auth--admin .brand-logo {
  display: block;
  width: min(260px, 100%);
  height: auto;
}

.catalyst-auth--admin .brand-copy {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.catalyst-auth--admin .subtitle {
  margin: 0;
  color: #0f3558;
  font-size: 1.9rem;
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.catalyst-auth--admin .intro-copy {
  margin: 0;
  color: var(--login-muted);
  font-size: 0.98rem;
}

.catalyst-auth--admin .alert {
  border-radius: 0.95rem;
  padding: 0.9rem 1rem;
}

.catalyst-auth--admin .alert strong {
  display: block;
  margin-bottom: 0.2rem;
}

.catalyst-auth--admin .auth-form {
  gap: 1rem;
}

.catalyst-auth--admin .field {
  gap: 0.45rem;
}

.catalyst-auth--admin .field > span {
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #1f2f3d;
}

.catalyst-auth--admin .input-shell {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
  border-radius: 1rem;
  background: #f8fafc;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
}

.catalyst-auth--admin .input-shell:focus-within {
  border-color: var(--login-accent);
  box-shadow: 0 0 0 3px var(--login-accent-soft);
  background: #ffffff;
  transform: translateY(-1px);
}

.catalyst-auth--admin .field-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 1.15rem;
  height: 1.15rem;
  color: var(--login-accent);
}

.catalyst-auth--admin .field-icon svg {
  width: 100%;
  height: 100%;
}

.catalyst-auth--admin .field input {
  flex: 1;
  min-width: 0;
  border: 0;
  border-radius: 0;
  padding: 0;
  background: transparent;
  font-size: 1rem;
  color: var(--login-text);
  outline: none;
  box-shadow: none;
}

.catalyst-auth--admin .field input:focus {
  box-shadow: none;
  background: transparent;
}

.catalyst-auth--admin .field input::placeholder {
  color: #94a3b8;
}

.catalyst-auth--admin .password-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  flex-shrink: 0;
  margin-left: 0.25rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid rgba(148, 163, 184, 0.35);
  border-radius: 999px;
  background: #ffffff;
  color: var(--login-muted);
  font-size: 0.84rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.catalyst-auth--admin .password-toggle:hover {
  transform: translateY(-1px);
  border-color: rgba(206, 0, 10, 0.4);
  color: var(--login-accent-strong);
}

.catalyst-auth--admin .password-toggle.is-visible {
  border-color: rgba(206, 0, 10, 0.45);
  color: var(--login-accent-strong);
  background: rgba(206, 0, 10, 0.08);
}

.catalyst-auth--admin .password-toggle-icon {
  width: 1rem;
  height: 1rem;
}

.catalyst-auth--admin .form-meta {
  margin-top: 0.1rem;
}

.catalyst-auth--admin .submit-button {
  position: relative;
  border: none;
  border-radius: 1rem;
  padding: 0;
  background: linear-gradient(120deg, var(--login-accent), var(--login-accent-strong));
  color: #fff;
  box-shadow: 0 18px 45px -24px rgba(39, 90, 144, 0.9);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.catalyst-auth--admin .submit-button-inner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  min-height: 3.2rem;
  padding: 0.9rem 1.2rem;
}

.catalyst-auth--admin .submit-button-icon {
  display: inline-flex;
  width: 1.05rem;
  height: 1.05rem;
}

.catalyst-auth--admin .submit-button-icon svg {
  width: 100%;
  height: 100%;
}

.catalyst-auth--admin .submit-button-label {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.catalyst-auth--admin .submit-button-spinner {
  display: none;
  width: 0.95rem;
  height: 0.95rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: login-spin 0.8s linear infinite;
}

.catalyst-auth--admin .submit-button:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 22px 52px -24px rgba(39, 90, 144, 1);
  filter: saturate(1.03);
}

.catalyst-auth--admin .submit-button.is-loading {
  cursor: progress;
}

.catalyst-auth--admin .submit-button.is-loading .submit-button-spinner {
  display: inline-block;
}

.catalyst-auth--admin .submit-button.is-loading .submit-button-icon {
  display: none;
}

.catalyst-auth--admin .register-hint {
  margin-top: 0.2rem;
  font-size: 0.94rem;
}

@keyframes login-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 640px) {
  .catalyst-auth--admin .auth-card {
    width: min(100%, 560px);
    padding: 2rem 1.25rem;
    border-radius: 1.35rem;
  }

  .catalyst-auth--admin .subtitle {
    font-size: 1.65rem;
  }

  .catalyst-auth--admin .input-shell {
    padding: 0.8rem 0.9rem;
  }

  .catalyst-auth--admin .password-toggle {
    padding: 0.4rem 0.65rem;
    font-size: 0.8rem;
  }

  .catalyst-auth--admin .submit-button-inner {
    min-height: 3rem;
    padding: 0.85rem 1rem;
  }
}