.start-main {
  max-width: 480px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-sm);
}

.start-card {
  background: var(--col-card);
  border: 1px solid var(--col-border);
  border-radius: 12px;
  padding: var(--space-md);
}

.start-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--col-heading);
  margin-bottom: 0.35rem;
}

.start-subtitle {
  font-size: 0.9rem;
  color: var(--col-muted);
  margin-bottom: var(--space-sm);
}

/* Tabs */
.start-tabs {
  display: flex;
  border-bottom: 1px solid var(--col-border);
  margin-bottom: var(--space-md);
  gap: 0;
}

.start-tab {
  flex: 1;
  padding: 0.65rem 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--col-muted);
  text-align: center;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}

.start-tab:hover {
  color: var(--col-text);
}

.start-tab.active {
  color: var(--col-primary);
  border-bottom-color: var(--col-primary);
}

.start-tab-panel {
  display: none;
}

.start-tab-panel.active {
  display: block;
}

.start-hint {
  font-size: 0.8rem;
  color: var(--col-muted);
  margin-bottom: var(--space-sm);
}

.start-legal {
  font-size: 0.75rem;
  color: var(--col-muted);
  margin-bottom: var(--space-sm);
}

.start-legal a {
  color: var(--col-muted);
  text-decoration: underline;
}

.start-legal a:hover {
  color: var(--col-text);
}

.start-form-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  font-size: 0.85rem;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  margin-bottom: var(--space-sm);
}

.start-form-error.hidden {
  display: none;
}

.hidden {
  display: none;
}

.btn-start {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.85rem 1.5rem;
  background: var(--col-cta);
  color: var(--col-white);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--dur-fast);
}

.btn-start:hover {
  background: var(--col-cta-hover);
}

.btn-start:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Account found notice */
/* Info notice (guest existing account) */
.start-info-notice {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: var(--col-text);
  margin-bottom: var(--space-sm);
}

.start-info-notice.hidden {
  display: none;
}

.start-info-notice svg {
  flex-shrink: 0;
  color: #3b82f6;
  margin-top: 0.1rem;
}

.start-link-btn {
  display: inline;
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
  color: var(--col-primary);
  text-decoration: underline;
  cursor: pointer;
}

.start-link-btn:hover {
  color: var(--col-primary-dark);
}

.start-account-notice {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--col-primary-bg);
  border: 1px solid var(--col-border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  color: var(--col-heading);
  margin-bottom: 0.75rem;
}

.start-account-notice svg {
  flex-shrink: 0;
  color: var(--col-primary);
}

.start-login-hint {
  font-size: 0.8rem;
  color: var(--col-muted);
  margin-bottom: var(--space-sm);
}

.start-skip {
  display: block;
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.65rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--col-primary);
  text-align: center;
  background: none;
  border: 1px solid var(--col-border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color var(--dur-fast), color var(--dur-fast);
}

.start-skip:hover {
  border-color: var(--col-primary-light);
  color: var(--col-primary-dark);
}

.start-forgot {
  display: block;
  background: none;
  border: none;
  padding: 0;
  margin-top: 0.35rem;
  font-size: 0.8rem;
  color: var(--col-primary);
  cursor: pointer;
  transition: color var(--dur-fast);
}

.start-forgot:hover {
  color: var(--col-primary-dark);
  text-decoration: underline;
}

.start-forgot:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.start-form-success {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #16a34a;
  font-size: 0.85rem;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  margin-bottom: var(--space-sm);
}

.start-form-success.hidden {
  display: none;
}

.start-back {
  display: block;
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.5rem;
  font-size: 0.8rem;
  color: var(--col-muted);
  text-align: center;
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--dur-fast);
}

.start-back:hover {
  color: var(--col-primary);
}

@media (max-width: 600px) {
  .start-main {
    padding: var(--space-md) var(--space-sm);
  }

  .start-card {
    padding: 1.5rem 1.25rem;
  }

  .start-tab {
    font-size: 0.78rem;
    padding: 0.55rem 0.25rem;
  }
}