.letter-workspace{--letter-border:#dbe4ec}.letter-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}.letter-heading h2{margin-bottom:.35rem}.letter-badge{display:inline-flex;padding:.4rem .7rem;border-radius:999px;background:#edf4f8;color:#18394d;font-size:.875rem;font-weight:700;white-space:nowrap}.letter-release-note{display:flex;flex-wrap:wrap;gap:.35rem .65rem;margin:1rem 0;padding:.85rem 1rem;border:1px solid var(--letter-border);border-radius:12px;background:#f8fafc}.letter-release-note strong{color:#0c334c}.letter-tabs{display:flex;gap:.65rem;margin:1rem 0}.letter-tabs button.active{border-color:#0c334c;background:#edf4f8}.letter-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.8fr);gap:1.25rem;align-items:start}.letter-panel,.letter-preview{padding:1rem;border:1px solid var(--letter-border);border-radius:14px;background:#fff}.letter-form-grid,.letter-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem}.letter-panel label{display:grid;gap:.35rem;margin-bottom:.8rem}.letter-panel input,.letter-panel textarea,.letter-panel select{width:100%}.letter-options{grid-template-columns:repeat(4,minmax(0,1fr))}.letter-price{padding:.75rem;border-radius:10px;background:#f5f7f9}.letter-file{padding:1rem;border:1px dashed #9db0bd;border-radius:12px}.letter-file-result{display:grid;grid-template-columns:max-content 1fr;gap:.45rem .8rem;margin-top:1rem}.letter-file-result dt{font-weight:700}.letter-file-result dd{margin:0}.letter-sheet{position:relative;min-height:560px;padding:28mm 20mm 24mm;background:#fff;box-shadow:0 6px 24px rgba(3,21,38,.1);border:1px solid #e5e9ed;font-family:Arial,sans-serif;color:#111;overflow:hidden}.letter-preview-sender{position:absolute;top:43mm;left:20mm;width:72mm;font-size:7pt;text-decoration:underline;white-space:pre-line}.letter-preview-recipient{position:absolute;top:49mm;left:20mm;width:72mm;min-height:42mm;font-size:10pt;line-height:1.25;white-space:pre-line}.letter-sheet time{display:block;margin-top:62mm;text-align:right;font-size:10pt}.letter-preview-subject{display:block;margin-top:13mm;font-size:11pt;white-space:pre-line}.letter-preview-body{margin-top:9mm;font-size:10.5pt;line-height:1.45;white-space:pre-wrap}.letter-preview-hint{margin:.9rem 0 0;font-size:.875rem;color:#526574}@media(max-width:900px){.letter-grid{grid-template-columns:1fr}.letter-options{grid-template-columns:repeat(2,minmax(0,1fr))}.letter-sheet{min-height:500px;padding-left:16mm;padding-right:16mm}.letter-preview-sender,.letter-preview-recipient{left:16mm}}@media(max-width:560px){.letter-heading{display:block}.letter-badge{margin-top:.5rem}.letter-form-grid,.letter-options{grid-template-columns:1fr}.letter-sheet{transform-origin:top left;min-height:470px;padding:20mm 11mm}.letter-preview-sender,.letter-preview-recipient{left:11mm;width:66mm}}