.auth-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(34, 197, 94, 0.12), transparent 30%),
    radial-gradient(circle at 80% 20%, rgba(107, 140, 255, 0.12), transparent 24%),
    linear-gradient(180deg, #08111d 0%, #0d1525 100%);
  color: #f8fafc;
}

.auth-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 32px auto 56px;
  display: grid;
  grid-template-columns: minmax(280px, 420px) minmax(320px, 520px);
  gap: 28px;
  align-items: stretch;
}

.auth-hero,
.auth-card {
  background: rgba(8, 17, 29, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.auth-hero {
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
}

.auth-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.22);
  color: #86efac;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
}

.auth-hero p {
  margin: 0;
  color: #cbd5e1;
  line-height: 1.7;
  font-size: 1rem;
}

.auth-feature-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.auth-feature-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.auth-feature-badge {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(34, 197, 94, 0.16);
  color: #86efac;
  flex: 0 0 auto;
}

.auth-card {
  padding: 28px;
}

.auth-card-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.auth-card-header h2 {
  margin: 0;
  font-size: 1.8rem;
}

.auth-card-header p {
  margin: 0;
  color: #94a3b8;
}

.auth-mode-toggle {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  padding: 8px;
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 18px;
}

.auth-mode-toggle button {
  border: none;
  background: transparent;
  color: #94a3b8;
  padding: 12px 16px;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.auth-mode-toggle button.is-active {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.22), rgba(107, 140, 255, 0.22));
  color: #ffffff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.auth-status {
  min-height: 60px;
  margin-bottom: 18px;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #cbd5e1;
  display: none;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
}

.auth-status.is-visible {
  display: flex;
}

.auth-status.success {
  border-color: rgba(34, 197, 94, 0.35);
  background: rgba(34, 197, 94, 0.12);
  color: #dcfce7;
}

.auth-status.error {
  border-color: rgba(248, 113, 113, 0.35);
  background: rgba(127, 29, 29, 0.28);
  color: #fee2e2;
}

.auth-status.note {
  border-color: rgba(96, 165, 250, 0.25);
  background: rgba(30, 41, 59, 0.72);
}

.auth-status-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.auth-form {
  display: grid;
  gap: 16px;
}

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

.auth-field label {
  font-weight: 700;
  color: #e2e8f0;
}

.auth-field input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(15, 23, 42, 0.78);
  color: #ffffff;
  font-size: 1rem;
}

.auth-field input:focus {
  outline: none;
  border-color: rgba(34, 197, 94, 0.6);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.14);
}

.auth-field-helper {
  color: #94a3b8;
  font-size: 0.92rem;
}

.auth-actions {
  display: grid;
  gap: 12px;
  margin-top: 4px;
}

.auth-primary-btn,
.auth-provider-btn {
  width: 100%;
  border: none;
  border-radius: 16px;
  padding: 14px 16px;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
}

.auth-primary-btn {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: #06111f;
  box-shadow: 0 16px 28px rgba(34, 197, 94, 0.18);
}

.auth-provider-btn {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #f8fafc;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.auth-primary-btn:hover,
.auth-provider-btn:hover,
.auth-inline-btn:hover {
  transform: translateY(-1px);
}

.auth-primary-btn:disabled,
.auth-provider-btn:disabled,
.auth-inline-btn:disabled {
  cursor: wait;
  opacity: 0.65;
  transform: none;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.76rem;
  margin: 8px 0 2px;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  height: 1px;
  flex: 1;
  background: rgba(255, 255, 255, 0.08);
}

.auth-inline-links {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.auth-legal-note {
  margin: 4px 0 0;
  color: #94a3b8;
  font-size: 0.92rem;
  line-height: 1.65;
}

.auth-legal-note a {
  color: #bfdbfe;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.14em;
}

.auth-inline-btn {
  border: none;
  background: none;
  color: #7dd3fc;
  font-weight: 700;
  padding: 0;
  cursor: pointer;
}

.gsi-material-button {
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  -webkit-appearance: none;
  width: 100%;
  min-width: min-content;
  max-width: none;
  height: 48px;
  padding: 0 14px;
  position: relative;
  overflow: hidden;
  text-align: center;
  vertical-align: middle;
  white-space: nowrap;
  cursor: pointer;
  outline: none;
  box-sizing: border-box;
  border: 1px solid #8e918f;
  border-radius: 999px;
  background-color: #131314;
  background-image: none;
  color: #e3e3e3;
  font-family: 'Roboto', arial, sans-serif;
  font-size: 14px;
  letter-spacing: 0.25px;
  transition: background-color 0.218s, border-color 0.218s, box-shadow 0.218s, transform 0.2s ease;
}

.gsi-material-button .gsi-material-button-icon {
  width: 20px;
  min-width: 20px;
  height: 20px;
  margin-right: 10px;
}

.gsi-material-button .gsi-material-button-content-wrapper {
  align-items: center;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: space-between;
  position: relative;
  width: 100%;
  height: 100%;
}

.gsi-material-button .gsi-material-button-contents {
  flex-grow: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: top;
  font-family: 'Roboto', arial, sans-serif;
  font-weight: 500;
}

.gsi-material-button .gsi-material-button-copy {
  display: none;
}

.gsi-material-button .gsi-material-button-state {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.218s;
}

.gsi-material-button:disabled {
  cursor: wait;
  background-color: rgba(19, 19, 20, 0.38);
  border-color: rgba(142, 145, 143, 0.12);
  box-shadow: none;
  transform: none;
}

.gsi-material-button:disabled .gsi-material-button-state {
  background-color: rgba(227, 227, 227, 0.12);
}

.gsi-material-button:disabled .gsi-material-button-contents,
.gsi-material-button:disabled .gsi-material-button-icon {
  opacity: 0.38;
}

.gsi-material-button:not(:disabled):active .gsi-material-button-state,
.gsi-material-button:not(:disabled):focus .gsi-material-button-state {
  background-color: #ffffff;
  opacity: 0.12;
}

.gsi-material-button:not(:disabled):hover {
  box-shadow: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
  transform: translateY(-1px);
}

.gsi-material-button:not(:disabled):hover .gsi-material-button-state {
  background-color: #ffffff;
  opacity: 0.08;
}

.auth-callback-shell {
  width: min(560px, calc(100% - 32px));
  margin: 84px auto;
}

.auth-spinner {
  width: 56px;
  height: 56px;
  border-radius: 999px;
  border: 4px solid rgba(255, 255, 255, 0.12);
  border-top-color: #22c55e;
  animation: auth-spin 0.9s linear infinite;
  margin: 12px auto 8px;
}

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

@media (max-width: 900px) {
  .auth-shell {
    grid-template-columns: 1fr;
    width: min(720px, calc(100% - 24px));
    margin-top: 20px;
  }

  .auth-hero,
  .auth-card {
    padding: 22px;
  }
}

@media (max-width: 640px) {
  .auth-page {
    padding-bottom: 24px;
  }

  .auth-shell,
  .auth-callback-shell {
    width: min(100%, calc(100% - 20px));
  }

  .auth-card,
  .auth-hero {
    border-radius: 20px;
  }

  .auth-inline-links {
    flex-direction: column;
    align-items: flex-start;
  }
}