.viewer-shell { display: flex; flex-direction: column; gap: 32px; padding-block: 56px 88px; }
.viewer-intro h1 { max-width: 720px; margin-bottom: 20px; font-size: clamp(34px, 4.5vw, 48px); }
.viewer-intro .lede { margin-bottom: 0; max-width: 640px; font-size: 17px; }
.viewer-form { display: grid; gap: 16px; max-width: 480px; }
.viewer-form label { display: grid; gap: 8px; font: 700 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-faint); }
.viewer-form input { font: 14px var(--mono); padding: 12px 14px; border: 1px solid var(--ink); background: #fffdf5; color: var(--ink); }
.viewer-form input::placeholder { color: #a59e8c; }
.viewer-form .button { width: fit-content; }
.viewer-status { min-height: 20px; margin: 0; color: var(--ink-soft); font-size: 14px; }
.viewer-panel { border: 1px solid var(--ink); padding: 24px; background: #fffdf5; }
.viewer-panel h2 { margin: 0 0 16px; font-size: 22px; letter-spacing: -.02em; }
.viewer-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin: 0; }
.viewer-facts div { display: grid; gap: 4px; }
.viewer-facts dt { color: var(--ink-faint); font: 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.viewer-facts dd { margin: 0; font-size: 14px; overflow-wrap: anywhere; }
.viewer-actions { display: flex; gap: 10px; margin-top: 20px; flex-wrap: wrap; }
.viewer-actions .button { cursor: pointer; }
.viewer-verification { margin-top: 16px; padding: 12px 16px; border: 1px dashed var(--ink); background: var(--amber-light); font-size: 14px; }
.viewer-verification code { font-size: 18px; font-weight: 700; }
#messages { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
#messages button { width: 100%; text-align: left; font: inherit; color: inherit; background: var(--paper); border: 1px solid var(--line); padding: 12px 14px; cursor: pointer; display: grid; gap: 4px; }
#messages button:hover, #messages button:focus-visible { border-color: var(--ink); }
#messages .msg-line { display: flex; justify-content: space-between; gap: 16px; }
#messages .msg-from { color: var(--ink-soft); font-size: 13px; overflow-wrap: anywhere; }
#messages .msg-subject { font-weight: 700; font-size: 15px; }
#messages .msg-time { color: var(--ink-faint); font: 12px var(--mono); white-space: nowrap; }
.viewer-meta { margin-bottom: 16px; color: var(--ink-soft); font-size: 14px; }
#detail-body { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--paper); border: 1px solid var(--line); padding: 16px; max-height: 480px; overflow: auto; font: 13px/1.7 var(--mono); }
.viewer-note { margin: 16px 0 0; color: var(--ink-faint); font-size: 13px; }

@media (max-width: 600px) {
  .viewer-shell { padding-block: 40px 56px; gap: 24px; }
  .viewer-panel { padding: 18px 16px; }
}