.message-composer .message-field { display: flex; flex-direction: column; gap: 6px; margin: 16px 0; font-size: 14px; font-weight: 600; min-width: 0; }
.message-composer .letter-header { position: sticky; top: 0; z-index: 2; background: var(--panel, #fff); padding-bottom: 12px; box-shadow: 0 -24px 0 var(--panel, #fff); }
.message-composer .message-field input, .message-composer textarea, .message-composer select { box-sizing: border-box; width: 100%; min-width: 0; min-height: 44px; padding: 12px; border: 1px solid var(--border, #dce3df); border-radius: 12px; background: var(--bg, #f3f5f4); color: var(--fg, #172b25); font: inherit; font-size: 16px; font-weight: 400; line-height: 1.5; }
.message-composer textarea { resize: vertical; }
.message-composer .message-options { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.message-composer .message-extra summary { cursor: pointer; padding: 12px 0; min-height: 44px; font-size: 14px; }
.message-composer ul { padding-left: 22px; }
.message-composer section { border-top: 1px solid var(--border, #dce3df); margin-top: 20px; padding-top: 12px; scroll-margin-top: 100px; }
.message-launch { font: inherit; font-size: 12px; color: var(--accent, #35654e); background: var(--panel, #fff); border: 1px solid var(--border, #dce3df); border-radius: 12px; min-height: 44px; padding: 8px 12px; cursor: pointer; }
.message-launch { flex-shrink: 0; min-width: 40px; }
@media (max-width: 480px) { .message-composer .message-options { grid-template-columns: 1fr; gap: 0; } .message-launch { padding: 6px; } }