/* Email Authentication Checker */
.ec {
  background: var(--color-bg-card, #f9fafb);
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: 16px;
  padding: 32px 28px;
  margin: 40px 0;
}
.ec__title {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 6px;
  text-align: center;
}
.ec__subtitle {
  font-size: 14px;
  color: var(--color-text-muted, #6b7280);
  text-align: center;
  margin: 0 0 24px;
}
.ec__form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.ec__input {
  flex: 1;
  min-width: 200px;
  padding: 12px 16px;
  border: 1px solid var(--color-border, #d1d5db);
  border-radius: 10px;
  font-size: 15px;
  background: var(--color-bg, #fff);
  color: var(--color-text, #111);
  outline: none;
  transition: border-color 0.2s;
}
.ec__input:focus {
  border-color: var(--color-accent, #2563eb);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
.ec__input--small {
  flex: 0.5;
  min-width: 160px;
}
.ec__btn {
  padding: 12px 28px;
  background: var(--color-accent, #2563eb);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  white-space: nowrap;
}
.ec__btn:hover {
  background: var(--color-accent-hover, #1d4ed8);
  transform: translateY(-1px);
}
.ec__btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}
.ec__results {
  margin-top: 24px;
}
.ec-loading {
  display: flex;
  justify-content: center;
  padding: 32px 0;
}
.ec-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border, #e5e7eb);
  border-top-color: var(--color-accent, #2563eb);
  border-radius: 50%;
  animation: ec-spin 0.7s linear infinite;
}
@keyframes ec-spin { to { transform: rotate(360deg); } }

.ec-overall {
  padding: 16px 20px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 20px;
  text-align: center;
}
.ec-overall--good { background: #16a34a15; color: #16a34a; }
.ec-overall--warn { background: #d9770615; color: #d97706; }
.ec-overall--bad  { background: #dc262615; color: #dc2626; }

.ec-row {
  border: 1px solid var(--color-border-light, #e5e7eb);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 12px;
  background: var(--color-bg, #fff);
}
.ec-row__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.ec-row__header strong {
  font-size: 15px;
}
.ec-badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.ec-row__message {
  font-size: 13px;
  color: var(--color-text-muted, #6b7280);
  margin: 0 0 10px;
  line-height: 1.5;
}
.ec-row__record {
  background: var(--color-bg-alt, #f3f4f6);
  border: 1px solid var(--color-border-light, #e5e7eb);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  margin: 0;
  color: var(--color-text, #111);
}
.ec-row__none {
  font-size: 13px;
  color: var(--color-text-dim, #9ca3af);
  font-style: italic;
  margin: 0;
}

/* Fix/Recommendation sections */
.ec-fix {
  margin-top: 12px;
  border-top: 1px solid var(--color-border-light, #e5e7eb);
  padding-top: 10px;
}
.ec-fix summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent, #2563eb);
  padding: 6px 0;
  user-select: none;
}
.ec-fix summary:hover {
  text-decoration: underline;
}
.ec-fix__content {
  padding: 12px 0 4px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-muted, #6b7280);
}
.ec-fix__content p {
  margin: 0 0 10px;
}
.ec-fix__content code {
  background: var(--color-bg-alt, #f3f4f6);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  color: var(--color-text, #111);
}
.ec-fix__note {
  font-size: 12px;
  color: var(--color-text-dim, #9ca3af);
  margin: 8px 0;
  line-height: 1.5;
}
.ec-fix__list {
  margin: 8px 0 12px 20px;
  font-size: 13px;
  line-height: 1.7;
}
.ec-fix__list li {
  margin-bottom: 4px;
}
.ec-fix__guides {
  margin: 10px 0;
  font-size: 13px;
}

/* DNS record table */
.ec-dns {
  width: 100%;
  border-collapse: collapse;
  margin: 10px 0;
  font-size: 12px;
  border: 1px solid var(--color-border-light, #e5e7eb);
  border-radius: 8px;
  overflow: hidden;
}
.ec-dns th {
  background: var(--color-bg-alt, #f3f4f6);
  padding: 8px 12px;
  text-align: left;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-dim, #9ca3af);
  border-bottom: 1px solid var(--color-border-light, #e5e7eb);
}
.ec-dns td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border-light, #e5e7eb);
  vertical-align: top;
}
.ec-dns tr:last-child td {
  border-bottom: none;
}
.ec-dns code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 12px;
  word-break: break-all;
  color: var(--color-text, #111);
}

/* Rollout tip */
.ec-tip {
  background: #2563eb08;
  border: 1px solid #2563eb30;
  border-radius: 10px;
  padding: 18px 20px;
  margin-top: 16px;
}
.ec-tip strong {
  display: block;
  font-size: 14px;
  margin-bottom: 10px;
  color: var(--color-text, #111);
}
.ec-tip__text {
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-text-muted, #6b7280);
  margin: 0;
  white-space: pre-wrap;
  font-family: inherit;
  background: none;
  border: none;
  padding: 0;
}

/* CTA */
.ec-cta {
  text-align: center;
  margin-top: 24px;
  padding: 24px;
  background: var(--color-bg-alt, #f3f4f6);
  border-radius: 12px;
}
.ec-cta p {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
  color: var(--color-text, #111);
}
.ec-error {
  text-align: center;
  color: #dc2626;
  font-size: 14px;
}

@media (max-width: 600px) {
  .ec { padding: 20px 16px; }
  .ec__form { flex-direction: column; }
  .ec__input--small { flex: 1; min-width: 0; }
  .ec__btn { width: 100%; }
  .ec-dns { font-size: 11px; }
  .ec-dns th, .ec-dns td { padding: 6px 8px; }
}