.site-main { min-height: 100dvh; width: 100%; padding: 24px; display: flex; justify-content: center; position: relative; z-index: 1; }
.chat-page { display: flex; flex-direction: column; width: min(960px, 100%); height: calc(100dvh - 48px); overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--bg-surface); color: var(--text-main); box-shadow: 0 24px 80px #0006; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
[hidden] { display: none !important; }
.chat-heading { display: flex; justify-content: space-between; align-items: flex-start; padding: 20px; border-bottom: 1px solid var(--border); gap: 12px; }
.chat-heading h1 { font-size: clamp(20px, 3vw, 26px); line-height: 1.4; }
.chat-heading p, .chat-speaker { font-size: 12px; color: var(--text-muted); }
.chat-messages { overflow-y: auto; min-height: 0; flex: 1; padding: 20px; display: flex; flex-direction: column; gap: 18px; overscroll-behavior: contain; }
.chat-message { max-width: 94%; }
.chat-message p { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 14px; line-height: 1.6; margin-top: 4px; }
.chat-message-user { align-self: flex-end; background: var(--bg-card); border-radius: 12px 12px 0 12px; padding: 10px 14px; }
.chat-message-assistant { align-self: flex-start; }
.chat-status { padding: 0 20px; color: var(--text-muted); font-size: 12px; min-height: 20px; overflow-wrap: anywhere; }
.chat-verification { padding: 8px 20px; }
.chat-compose { padding: 12px 20px; border-top: 1px solid var(--border); }
.chat-compose textarea, .admin-panel input:not([type=checkbox]), .admin-panel select, .admin-panel textarea { width: 100%; background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-main); padding: 10px 12px; font: inherit; resize: vertical; }
.chat-compose textarea { font-size: 16px; max-height: 160px; }
.chat-actions, .admin-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.chat-actions .btn-primary { margin-left: auto; padding: 9px 14px; }
.btn-quiet { border: 1px solid var(--border); border-radius: var(--radius-sm); background: transparent; color: var(--text-muted); padding: 9px 12px; font: 14px var(--font); cursor: pointer; }
.btn-quiet:hover { color: var(--text-main); border-color: var(--text-muted); }
.chat-privacy { padding: 0 20px 16px; font-size: 11px; color: var(--text-muted); max-height: 85px; overflow: auto; white-space: pre-wrap; }
.admin-panel { width: 100%; max-width: 780px; padding: 32px 0; }
.admin-intro h1 { font-size: clamp(28px, 5vw, 40px); letter-spacing: -.025em; }
.admin-intro p, .admin-hint { color: var(--text-muted); font-size: 14px; margin: 8px 0 16px; }
.admin-status { margin: 24px 0 16px; color: var(--accent-light); }
.admin-notice { padding: 16px; border-left: 3px solid var(--accent-light); background: var(--bg-surface); margin-bottom: 24px; overflow-wrap: anywhere; }
.admin-panel fieldset { border: 0; padding: 0; min-width: 0; }
.admin-panel legend, .admin-panel h2 { font-size: 20px; font-weight: 600; margin: 16px 0; }
.admin-panel label { display: flex; flex-direction: column; gap: 7px; margin-bottom: 18px; font-size: 14px; }
.admin-panel .admin-check { flex-direction: row; align-items: center; }
.admin-check input { width: 18px; height: 18px; accent-color: var(--accent); }
.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.admin-section { margin-top: 32px; padding-top: 16px; border-top: 1px solid var(--border); }
.admin-section select { max-width: 100%; }
.admin-answer { white-space: pre-wrap; overflow-wrap: anywhere; margin-top: 16px; }
.admin-section #admin-test-send { margin-top: 12px; }
@media (max-width: 600px) {
  .site-main { padding: 8px; }
  .chat-page { height: calc(100dvh - 16px); border-radius: 12px; }
  .chat-heading, .chat-messages { padding: 16px; }
  .chat-compose { padding: 12px 16px; }
  .chat-status { padding: 0 16px; }
  .chat-verification { padding: 8px 16px; }
  .chat-privacy { padding: 0 16px 12px; }
  .admin-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { .chat-page * { transition: none; } }

.chat-page button:disabled, .chat-page textarea:disabled, .admin-panel button:disabled { opacity: .5; cursor: not-allowed; }
.chat-page :focus-visible, .admin-panel :focus-visible { outline: 2px solid var(--accent-light); outline-offset: 3px; }