/* === AUTH PAGE === */
.auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 80px 1.5rem 4rem;
}

.auth-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--fg);
  text-decoration: none;
  margin-bottom: 0.5rem;
  display: block;
  text-align: center;
}

.auth-logo-sub {
  font-size: 0.72rem;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 2.5rem;
  display: block;
  text-align: center;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
}

.auth-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.auth-tab {
  flex: 1;
  padding: 0.75rem;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.auth-tab:hover { color: var(--fg); }

.auth-tab.active {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

.auth-panel { display: none; }
.auth-panel.active { display: block; }

.auth-heading {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 0.4rem;
  letter-spacing: -0.02em;
}

.auth-sub {
  font-size: 0.875rem;
  color: var(--fg-muted);
  margin-bottom: 1.75rem;
}

.form-field { margin-bottom: 1.1rem; }

.form-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--fg-muted);
  margin-bottom: 0.4rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--fg);
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus { border-color: var(--accent); }

.form-input::placeholder { color: #4a4a4a; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }

.auth-submit {
  width: 100%;
  background: var(--accent);
  color: #0e0e0f;
  border: none;
  border-radius: 8px;
  padding: 0.85rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 0.5rem;
}

.auth-submit:hover { background: #d4a94a; }

.auth-submit:disabled {
  background: #4a4a4a;
  cursor: not-allowed;
}

.auth-error {
  background: #2a1a1a;
  border: 1px solid #5a2a2a;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: #e05c5c;
  margin-bottom: 1rem;
  display: none;
}

.auth-error.visible { display: block; }

.auth-success {
  background: #1a2a1a;
  border: 1px solid #2a5a2a;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: #7a9e6a;
  margin-bottom: 1rem;
  display: none;
}

.auth-success.visible { display: block; }

.auth-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  color: #3a3a3a;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

.auth-plan-info {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.auth-plan-info span { color: var(--accent); font-weight: 600; }

.auth-footer-link {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.8rem;
  color: var(--fg-muted);
}

.auth-footer-link a {
  color: var(--accent);
  text-decoration: none;
}

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

/* Loading spinner inside button */
.auth-submit {
  position: relative;
  min-height: 44px;
}

.spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(14,14,15,0.3);
  border-top-color: #0e0e0f;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 0 auto;
}

.auth-submit.loading .spinner { display: block; }
.auth-submit.loading .btn-text { display: none; }

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

@media (max-width: 480px) {
  .auth-card { padding: 2rem 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
}