/* ================================================================
   Email Header Analyzer — Tool-specific Styles
   Prefix: eha-
   ================================================================ */

/* ── Input Section ───────────────────────────────────────────── */

.eha-input-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.eha-input-label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-heading);
}

.eha-input-hint {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.eha-textarea {
  width: 100%;
  min-height: 220px;
  padding: 0.875rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.65;
  resize: vertical;
  transition: border-color 0.15s, box-shadow 0.15s;
  box-sizing: border-box;
}

.eha-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.12);
}

.eha-textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.6;
}

.eha-btn-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.eha-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.625rem 1.375rem;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  white-space: nowrap;
}

.eha-btn:hover  { opacity: 0.88; }
.eha-btn:active { transform: scale(0.97); }

.eha-btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.eha-btn--ghost:hover {
  opacity: 1;
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.eha-kbd-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-left: 0.25rem;
}

.eha-kbd-hint kbd {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.1em 0.4em;
  color: var(--color-text);
}

@media (max-width: 480px) {
  .eha-kbd-hint { display: none; }
}

/* ── Error ───────────────────────────────────────────────────── */

.eha-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  padding: 0.875rem 1rem;
  color: #ef4444;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

/* ── Results Container ───────────────────────────────────────── */

.eha-results {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ── Section Card ────────────────────────────────────────────── */

.eha-section {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
}

.eha-section__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text-heading);
  margin: 0 0 1.125rem;
  padding-bottom: 0.875rem;
  border-bottom: 1px solid var(--color-border);
}

.eha-section__title svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

/* ── Authentication Grid ─────────────────────────────────────── */

.eha-auth-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.875rem;
}

@media (max-width: 600px) {
  .eha-auth-grid {
    grid-template-columns: 1fr;
  }
}

.eha-auth-badge {
  border-radius: 10px;
  padding: 1.125rem 1rem;
  border: 1px solid;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.eha-auth-badge--pass    { background: rgba(16, 185, 129, 0.1);  border-color: rgba(16, 185, 129, 0.35); }
.eha-auth-badge--fail    { background: rgba(239, 68, 68, 0.1);   border-color: rgba(239, 68, 68, 0.35); }
.eha-auth-badge--softfail{ background: rgba(245, 158, 11, 0.1);  border-color: rgba(245, 158, 11, 0.35); }
.eha-auth-badge--neutral { background: rgba(245, 158, 11, 0.07); border-color: rgba(245, 158, 11, 0.25); }
.eha-auth-badge--error   { background: rgba(239, 68, 68, 0.07);  border-color: rgba(239, 68, 68, 0.25); }
.eha-auth-badge--none    { background: var(--color-bg);           border-color: var(--color-border); }

.eha-auth-badge__label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-text-muted);
}

.eha-auth-badge__icon {
  font-size: 1.625rem;
  line-height: 1;
  margin: 0.125rem 0;
}

.eha-auth-badge--pass     .eha-auth-badge__icon { color: #10b981; }
.eha-auth-badge--fail     .eha-auth-badge__icon { color: #ef4444; }
.eha-auth-badge--softfail .eha-auth-badge__icon { color: #f59e0b; }
.eha-auth-badge--neutral  .eha-auth-badge__icon { color: #f59e0b; }
.eha-auth-badge--error    .eha-auth-badge__icon { color: #ef4444; }
.eha-auth-badge--none     .eha-auth-badge__icon { color: var(--color-text-muted); }

.eha-auth-badge__result {
  font-size: 1.1875rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 1;
}

.eha-auth-badge--pass     .eha-auth-badge__result { color: #10b981; }
.eha-auth-badge--fail     .eha-auth-badge__result { color: #ef4444; }
.eha-auth-badge--softfail .eha-auth-badge__result { color: #f59e0b; }
.eha-auth-badge--neutral  .eha-auth-badge__result { color: #f59e0b; }
.eha-auth-badge--error    .eha-auth-badge__result { color: #ef4444; }
.eha-auth-badge--none     .eha-auth-badge__result { color: var(--color-text-muted); }

.eha-auth-badge__detail {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  word-break: break-all;
  line-height: 1.4;
  max-width: 100%;
  margin-top: 0.125rem;
}

/* ── Route Meta Bar ──────────────────────────────────────────── */

.eha-route-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-bottom: 1.25rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.eha-route-meta strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ── Route Timeline ──────────────────────────────────────────── */

.eha-route {
  display: flex;
  flex-direction: column;
}

/* Hop wrapper */
.eha-hop {
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

/* Hop card */
.eha-hop__card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 0.875rem 1.125rem;
  transition: border-color 0.15s;
}

.eha-hop__card:hover {
  border-color: var(--color-accent);
}

.eha-hop__header {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 0.75rem;
}

.eha-hop__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.625rem;
  height: 1.625rem;
  padding: 0 0.375rem;
  border-radius: 99px;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

.eha-hop__title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-heading);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.eha-hop__fields {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.3rem 0.875rem;
  font-size: 0.8125rem;
}

.eha-hop__field-label {
  font-weight: 600;
  color: var(--color-text-muted);
  white-space: nowrap;
  padding-top: 0.05em;
}

.eha-hop__field-value {
  color: var(--color-text);
  word-break: break-all;
  line-height: 1.5;
}

.eha-hop__field-value code,
.eha-hop__proto-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.1em 0.4em;
  display: inline-block;
}

.eha-hop__ip {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  margin-left: 0.375rem;
}

/* Connector between hop cards */
.eha-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0;
}

.eha-connector__line {
  width: 2px;
  min-height: 14px;
  background: var(--color-border);
  flex-shrink: 0;
}

.eha-connector__delta {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.7rem;
  border-radius: 99px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text-muted);
  white-space: nowrap;
  margin: 3px 0;
  cursor: default;
}

.eha-connector__delta--fast      { color: #10b981; border-color: rgba(16, 185, 129, 0.35); background: rgba(16, 185, 129, 0.08); }
.eha-connector__delta--slow      { color: #f59e0b; border-color: rgba(245, 158, 11, 0.35); background: rgba(245, 158, 11, 0.08); }
.eha-connector__delta--very-slow { color: #ef4444; border-color: rgba(239, 68, 68, 0.35);  background: rgba(239, 68, 68, 0.08); }
.eha-connector__delta--skew      { color: var(--color-text-muted); font-style: italic; }

.eha-connector__arrow {
  font-size: 1rem;
  color: var(--color-accent);
  line-height: 1;
  margin: 1px 0;
  user-select: none;
}

/* ── Key Details Grid ────────────────────────────────────────── */

.eha-details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 0.625rem;
}

.eha-detail-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.75rem 0.875rem;
  min-width: 0;
}

.eha-detail-item--wide {
  grid-column: 1 / -1;
}

.eha-detail-item__label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-text-muted);
  margin-bottom: 0.3rem;
}

.eha-detail-item__value {
  font-size: 0.875rem;
  color: var(--color-text);
  word-break: break-word;
  line-height: 1.55;
}

.eha-detail-item__value--mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.eha-detail-item__flag {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  margin-left: 0.4rem;
  vertical-align: middle;
  white-space: nowrap;
}

.eha-detail-item__flag--warn {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* ── All Headers (Collapsible) ───────────────────────────────── */

.eha-raw-section {
  padding: 0;
  overflow: hidden;
}

.eha-raw-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 1rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font-body);
  text-align: left;
  transition: color 0.15s;
}

.eha-raw-toggle:hover {
  color: var(--color-accent);
}

.eha-raw-toggle__chevron {
  transition: transform 0.2s ease;
  color: var(--color-text-muted);
  flex-shrink: 0;
  margin-right: 0.125rem;
}

.eha-raw-toggle[aria-expanded="true"] .eha-raw-toggle__chevron {
  transform: rotate(180deg);
}

.eha-header-count {
  margin-left: 0.25rem;
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.eha-raw-content {
  padding: 0 1.5rem 1.25rem;
  border-top: 1px solid var(--color-border);
}

.eha-raw-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
  margin-top: 0.75rem;
}

.eha-raw-table tr:not(:last-child) td {
  border-bottom: 1px solid var(--color-border);
}

.eha-raw-table td {
  padding: 0.375rem 0.5rem;
  vertical-align: top;
  line-height: 1.55;
}

.eha-raw-table td:first-child {
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
  width: 22%;
  padding-right: 1rem;
}

.eha-raw-table td:last-child {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  word-break: break-all;
}

/* ── No-route placeholder ────────────────────────────────────── */

.eha-empty-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-style: italic;
  padding: 0.25rem 0;
}