/* finesse · letter-studio · existing postal palette · editing, letter, invitation */
@font-face { font-family: "LCX Letter Song"; src: url("fonts/lcx-letter-song.woff2") format("woff2"); font-style: normal; font-weight: 400; font-display: swap; }
@font-face { font-family: "LCX Letter Kai"; src: url("fonts/lcx-letter-kai.woff2") format("woff2"); font-style: normal; font-weight: 400; font-display: swap; }
.lcx-studio-kicker { margin: 0 0 8px; color: var(--gold); font-size: 12px; letter-spacing: .14em; }
.lcx-editor-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 0 0 12px; }
.lcx-mode-tabs { display: flex; padding: 3px; border-radius: 12px; background: var(--bg-2); border: 1px solid var(--line); }
.lcx-mode-tabs button, .lcx-format-btn { min-height: 44px; padding: 8px 13px; color: var(--ink-2); border: 0; border-radius: 9px; background: transparent; font: inherit; font-size: 14px; cursor: pointer; }
.lcx-mode-tabs button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 3px var(--line); }
.lcx-format-btn { color: var(--cinnabar); border: 1px solid var(--line-2); white-space: nowrap; }
.lcx-format-btn:disabled { opacity: .45; cursor: default; }
.lcx-style-tools { margin: 0 0 14px; }
.lcx-font-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.lcx-font-options button, .lcx-style-group button { min-height: 44px; padding: 7px 10px; border: 1px solid var(--line-2); border-radius: 10px; background: transparent; color: var(--ink-2); font: inherit; font-size: 15px; cursor: pointer; }
.lcx-font-options button span { margin-left: 5px; font: 11px/1.5 var(--sans); color: var(--muted); }
.lcx-font-options button[data-letter-font="song"][aria-pressed="true"] { font-family: "LCX Letter Song", var(--serif-ugc); }
.lcx-font-options button[data-letter-font="kai"][aria-pressed="true"] { font-family: "LCX Letter Kai", "Kaiti SC", "KaiTi", "STKaiti", serif; }
.lcx-font-options button[aria-pressed="true"], .lcx-style-group button[aria-pressed="true"] { color: var(--cinnabar); border-color: var(--cinnabar); box-shadow: inset 0 0 0 1px var(--cinnabar); background: var(--xx-tint); }
.lcx-paper-tools { margin: 8px 0 0; border-bottom: 1px solid var(--line); }
.lcx-paper-tools summary { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 44px; padding: 7px 2px; color: var(--ink-2); font-size: 13px; cursor: pointer; }
.lcx-paper-tools summary::after { content: "+"; color: var(--gold); font: 20px/1 var(--sans); }
.lcx-paper-tools[open] summary::after { content: "−"; }
.lcx-paper-tools summary span { margin-left: auto; font-size: 11px; color: var(--muted); }
.lcx-style-group { margin: 0 0 14px; }
.lcx-style-group > span { display: block; margin-bottom: 7px; font-size: 12px; color: var(--muted); }
.lcx-style-group > div { display: flex; gap: 8px; }
.lcx-style-group button { flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 7px; font-size: 14px; }
.lcx-swatch { --swatch: #f7f0df; display: inline-block; width: 15px; height: 18px; background: var(--swatch); border: 1px solid var(--line-2); border-radius: 2px; flex: 0 0 auto; }
.lcx-swatch-letter { --swatch: #f2f4ee; background-image: repeating-linear-gradient(transparent 0 4px, var(--line) 4px 5px); }
.lcx-swatch-rose { --swatch: #f6e6df; }
.lcx-editor-panes { display: grid; gap: 20px; }
.lcx-editor-panes[data-mode="edit"] .lcx-preview-pane { display: none; }
.lcx-editor-panes[data-mode="preview"] [data-letter-edit] { display: none; }
.lcx-preview-label { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 0 0 8px; color: var(--ink-2); font-size: 12px; }
.lcx-preview-label span { font-size: 11px; color: var(--muted); }
.lcx-preview-pane { scroll-margin-top: 84px; }
.lcx-preview-label button { min-height: 44px; padding: 6px 0 6px 10px; color: var(--cinnabar); background: transparent; border: 0; font: 13px/1.5 var(--sans); cursor: pointer; }
.lcx-preview-pane .lcx-letter-sheet { max-height: min(62dvh, 620px); overflow-y: auto; overscroll-behavior: contain; }
.lcx-preview-note { font: 12px/1.7 var(--sans); color: var(--muted); margin: 10px 0 0; }
.lcx-letter-sheet, .lcx-writing-paper {
  --lp-paper: #fcf6e9; --lp-ink: #38332c; --lp-secondary: #766a5c; --lp-rule: rgba(120, 92, 58, .18); --lp-accent: #a8412f;
  color: var(--lp-ink); background: var(--lp-paper); font: 400 17.5px/2 "LCX Letter Song", var(--serif-ugc); overflow-wrap: anywhere;
}
.lcx-letter-sheet { padding: 26px 24px; border: 1px solid var(--lp-rule); border-radius: 4px 4px 12px 12px; box-shadow: 0 6px 25px var(--line); }
.lcx-letter-sheet[data-paper="letter"], .lcx-writing-paper[data-paper="letter"] { --lp-paper: #f4f5ee; --lp-rule: rgba(63, 96, 83, .16); --lp-accent: #577466; }
.lcx-letter-sheet[data-paper="rose"], .lcx-writing-paper[data-paper="rose"] { --lp-paper: #f9ece5; --lp-rule: rgba(132, 78, 69, .16); --lp-accent: #ab5c50; }
.lcx-letter-sheet[data-font="kai"], .lcx-writing-paper[data-font="kai"] { font-family: "LCX Letter Kai", "Kaiti SC", "KaiTi", "STKaiti", var(--serif-ugc); }
.lcx-letter-sheet[data-font="hei"], .lcx-writing-paper[data-font="hei"] { font-family: var(--sans); }
.lcx-letter-sheet[data-layout="modern"] { padding-top: 22px; border-radius: 12px; }
.lcx-letter-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; border-bottom: 1px solid var(--lp-rule); padding-bottom: 18px; margin-bottom: 24px; }
.lcx-letter-head p { margin: 0; font-size: 18px; line-height: 1.7; }
.lcx-letter-mark { flex: 0 0 auto; color: var(--lp-accent); font: 12px/1.35 "LCX Letter Song", var(--serif-ugc); border: 1px solid var(--lp-accent); padding: 5px; writing-mode: vertical-rl; letter-spacing: .14em; }
.lcx-letter-body p { margin: 0 0 1em; white-space: pre-wrap; }
.lcx-letter-sheet[data-layout="classic"] .lcx-letter-body p { text-indent: 2em; }
.lcx-letter-sheet[data-layout="modern"] .lcx-letter-body p { text-indent: 0; margin-bottom: 1.3em; }
.lcx-letter-sheet[data-paper="letter"] .lcx-letter-body { background-image: repeating-linear-gradient(transparent 0 calc(2em - 1px), var(--lp-rule) calc(2em - 1px) 2em); }
.lcx-letter-body p:last-child { margin-bottom: 0; }
.lcx-letter-empty { text-indent: 0 !important; color: var(--lp-secondary); min-height: 160px; }
.lcx-letter-signature, .lcx-letter-sheet .xx-lsignature { padding: 0; text-align: right; margin: 28px 0 0; font: inherit; color: var(--lp-ink); }
.lcx-letter-sheet .xx-lbody { padding: 0; border: 0; border-radius: 0; background-color: transparent; color: inherit; font: inherit; }
.lcx-letter-sheet .xx-lbody p { margin-bottom: 1em; }
.lcx-letter-sheet .xx-lhead { margin: 0 0 22px; padding-bottom: 16px; border-bottom: 1px solid var(--lp-rule); }
.lcx-letter-sheet .xx-lh { font-family: inherit; color: inherit; }
.lcx-letter-sheet .xx-lmeta { color: var(--lp-secondary); }
.lcx-writing-paper .xx-ta { color: var(--lp-ink); font: inherit; padding-top: 15px; height: clamp(250px, 38vh, 420px); }
.lcx-writing-paper .xx-paper-label { color: var(--lp-secondary); }
.lcx-writing-paper .xx-count { color: var(--lp-secondary); background: var(--lp-paper); }
.xx-count.is-over-limit { color: var(--cinnabar); font-weight: 600; }
.lcx-writing-paper .xx-count.is-over-limit { color: var(--lp-accent); }
.lcx-format-status { display: flex; align-items: center; gap: 8px; justify-content: space-between; margin: 8px 0 14px; }
.lcx-format-status p { margin: 0; font: 12px/1.7 var(--sans); color: var(--muted); }
.lcx-format-status button { flex: 0 0 auto; min-height: 44px; padding: 6px 8px; border: 0; color: var(--cinnabar); background: transparent; font: 13px/1.6 var(--sans); cursor: pointer; }
.lcx-sent-art { margin: 24px auto 20px; max-width: 240px; min-height: 200px; }
.lcx-sent-art img { display: block; width: 100%; border: 1px solid var(--line-2); border-radius: 5px; box-shadow: var(--shadow); }
.lcx-sent-art-status { color: var(--muted); padding: 65px 12px; font-size: 13px; text-align: center; border: 1px dashed var(--line-2); border-radius: 8px; }
.lcx-sent-art img:not([hidden]) + .lcx-sent-art-status { display: none; }
.lcx-share-choices { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 0 0 12px; }
.lcx-share-choices button { display: flex; flex-direction: column; align-items: flex-start; text-align: left; gap: 6px; padding: 18px; min-height: 130px; background: var(--surface); border: 1px solid var(--line-2); border-radius: 12px; color: var(--ink); font: inherit; cursor: pointer; }
.lcx-share-choices b { font-size: 16px; font-weight: 600; }
.lcx-share-choices button > span:last-child { font-size: 12px; color: var(--ink-2); line-height: 1.6; }
.lcx-share-choice-icon { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 34px; margin-bottom: 4px; border: 1px solid var(--cinnabar); color: var(--cinnabar); font: 18px/1 var(--serif); border-radius: 3px; }
.lcx-poster-choice-icon { border-radius: 3px 3px 0 0; color: var(--gold); border-color: var(--gold); }
.lcx-share-privacy { color: var(--muted); font-size: 13px; line-height: 1.75; margin: 12px 0 18px; }
.lcx-share-choices-small { margin: 12px 0 0; }
.lcx-share-choices-small button { min-height: 85px; padding: 12px; }
.lcx-link-card { border-top: 1px solid var(--line); margin: 14px 0 18px; }
.lcx-link-card summary { padding: 10px 0; min-height: 44px; cursor: pointer; font-size: 13px; color: var(--ink-2); }
.lcx-link-card .xx-card-prev { margin-bottom: 4px; }
.lcx-share-studio { position: fixed; inset: 0; z-index: 190; display: grid; place-items: center; padding: max(16px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom)); background: color-mix(in srgb, var(--ink) 45%, transparent); }
.lcx-share-studio[hidden], .lcx-share-studio [hidden] { display: none !important; }
.lcx-share-studio-panel { position: relative; width: min(480px, 100%); max-height: 100%; overflow-y: auto; overscroll-behavior: contain; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); padding: 24px; }
.lcx-poster-close { position: absolute; right: 6px; top: 6px; min-width: 44px; min-height: 44px; border: 0; background: transparent; color: var(--ink-2); font: 27px/1 var(--sans); cursor: pointer; }
.lcx-share-studio h2 { margin: 0 35px 5px 0; font-size: 23px; line-height: 1.4; }
.lcx-poster-intro { color: var(--ink-2); font-size: 13px; line-height: 1.7; margin: 0 0 14px; }
.lcx-poster-types { display: flex; gap: 8px; margin: 0 0 16px; }
.lcx-poster-types button { flex: 1; min-height: 44px; padding: 7px 8px; border: 1px solid var(--line-2); border-radius: 9px; background: transparent; color: var(--ink-2); font: 14px/1.5 var(--sans); cursor: pointer; }
.lcx-poster-types button[aria-pressed="true"] { border-color: var(--cinnabar); color: var(--cinnabar); background: var(--xx-tint); }
.lcx-poster-preview { min-height: 180px; display: grid; place-items: center; background: var(--bg-2); padding: 12px; border-radius: 10px; }
.lcx-poster-image { width: auto; max-width: 100%; max-height: 49dvh; object-fit: contain; border-radius: 3px; box-shadow: var(--shadow); touch-action: auto; -webkit-touch-callout: default; -webkit-user-select: auto; user-select: auto; }
.lcx-poster-state { padding: 24px 6px; text-align: center; color: var(--ink-2); font-size: 14px; line-height: 1.7; }
.lcx-poster-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 0; }
.lcx-poster-actions .btn { flex: 1; min-width: 130px; min-height: 44px; padding: 9px 12px; font-size: 14px; }
.lcx-poster-help { color: var(--ink); margin: 0 0 14px; font-size: 15px; font-weight: 600; line-height: 1.65; }
.lcx-poster-privacy { color: var(--ink-2); margin: 12px 0 0; font-size: 13px; line-height: 1.75; }
.lcx-poster-preview[data-state="error"] .lcx-poster-state { color: color-mix(in srgb, var(--cinnabar) 92%, var(--ink)); }
.lcx-poster-close:focus-visible { outline: 2px solid var(--qing-d); outline-offset: 2px; }
.lcx-poster-actions .btn, .lcx-poster-preview .btn { white-space: nowrap; outline: 2px solid transparent; outline-offset: 3px; }
.lcx-poster-actions .btn:focus-visible, .lcx-poster-preview .btn:focus-visible { outline-color: var(--qing-d); }
.lcx-poster-actions .btn:active, .lcx-poster-preview .btn:active { transform: translateY(1px); }
.lcx-poster-preview .btn:disabled { opacity: .5; cursor: not-allowed; }
.lcx-poster-caption { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 14px; }
.lcx-poster-caption label { display: block; font-size: 13px; color: var(--ink-2); margin: 0 0 7px; }
.lcx-poster-caption textarea { width: 100%; min-height: 94px; border: 1px solid var(--line-2); border-radius: 9px; padding: 10px; background: var(--bg); color: var(--ink-2); font: 13px/1.8 var(--sans); resize: vertical; }
.lcx-poster-caption button { min-height: 44px; padding: 6px 0; background: transparent; border: 0; color: var(--cinnabar); font: 13px/1.6 var(--sans); cursor: pointer; }
.lcx-poster-notice { min-height: 1.6em; color: var(--cinnabar); font-size: 13px; line-height: 1.6; margin: 8px 0 0; }
@media (hover: hover) { .lcx-share-choices button:hover, .lcx-format-btn:hover { border-color: var(--cinnabar); background: var(--xx-tint); } }
@media (min-width: 900px) { .xx-flow.xx-has-studio { max-width: 940px; } .lcx-editor-panes { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; } .lcx-editor-panes[data-mode] .lcx-preview-pane, .lcx-editor-panes[data-mode] [data-letter-edit] { display: block; } .lcx-mode-tabs, .lcx-preview-label button { display: none; } .lcx-editor-bar { justify-content: flex-end; margin-top: -48px; } .lcx-style-tools { width: calc(50% - 10px); } .lcx-preview-pane .lcx-letter-sheet { max-height: 620px; } }
@media (max-width: 359px) { .lcx-font-options button span { display: none; } .lcx-font-options button { font-size: 15px; } .lcx-paper-tools summary span { font-size: 10px; } .lcx-share-choices { gap: 8px; } .lcx-share-choices button { padding: 13px; } .lcx-share-choices b { font-size: 15px; } .lcx-letter-sheet { padding: 23px 18px; } .lcx-share-studio-panel { padding: 24px 16px 18px; } }
@media (prefers-reduced-motion: reduce) { .lcx-share-studio *, .lcx-letter-sheet { scroll-behavior: auto; } }

/* Choose one full-size export at a time; the catalogue stays a lightweight native control. */
.lcx-poster-template-tools { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 10px; margin: 0 0 16px; min-width: 0; }
.lcx-poster-template-current { margin: 0; align-self: center; color: var(--ink); font-size: 14px; line-height: 1.6; overflow-wrap: anywhere; min-width: 0; }
.lcx-poster-template-tools .btn { min-width: 0; min-height: 44px; padding: 8px 12px; font-size: 13px; white-space: nowrap; }
.lcx-poster-template-tools label { grid-column: 1 / -1; color: var(--ink-2); font-size: 13px; line-height: 1.5; margin-top: 2px; }
.lcx-poster-template-tools select { grid-column: 1 / -1; width: 100%; min-width: 0; min-height: 44px; padding: 9px 10px; color: var(--ink); background: var(--bg); border: 1px solid var(--line-2); border-radius: 8px; font: 16px/1.5 var(--sans); }
.lcx-poster-template-description { grid-column: 1 / -1; margin: 0; color: var(--ink-2); font-size: 12px; line-height: 1.7; overflow-wrap: anywhere; }
.lcx-poster-template-description:empty { display: none; }
.lcx-poster-template-tools :disabled, .lcx-poster-actions button:disabled { opacity: .55; cursor: progress; }
.lcx-poster-template-tools :focus-visible { outline: 2px solid var(--qing-d); outline-offset: 3px; }
@media (max-width: 359px) { .lcx-poster-template-tools { gap: 7px; } .lcx-poster-template-tools .btn { padding-inline: 9px; } .lcx-poster-actions .btn { flex-basis: 100%; min-width: 0; } }
/* finesse · component: AI letter feedback · register=product · tokens: inherited */
.xx-ai-progress-host { min-width: 0; margin-top: 12px; }
.xx-ai-progress-host:empty { margin: 0; }
.xx-ai-provider { margin: 12px 0 0; color: var(--ink-2); font: 12px/1.7 var(--sans); }
.xx-ai-provider[hidden] { display: none; }
.xx-ai-cancelled { margin: 0; color: var(--ink-2); font: 13px/1.7 var(--sans); overflow-wrap: anywhere; }
.xx-ai-cancelled[hidden] { display: none; }
.xx-blk-field { margin: 0 0 8px; color: var(--ink); font: 600 14px/1.7 var(--sans); }
.xx-blk-reason { margin: 0 0 10px; color: var(--ink-2); font: 15px/1.8 var(--sans); overflow-wrap: anywhere; }
.xx-actions [data-polish] { min-height: 52px; white-space: nowrap; outline: 2px solid transparent; outline-offset: 3px; }
.xx-actions [data-polish]:focus-visible { outline-color: var(--qing-d); }
.xx-actions [data-polish]:active:not(:disabled) { transform: translateY(1px); }
.xx-actions [data-polish]:disabled { opacity: .5; cursor: not-allowed; }
@media (hover: hover) { .xx-actions [data-polish]:hover:not(:disabled) { background: var(--xx-tint); border-color: var(--cinnabar); } }
@media (prefers-reduced-motion: reduce) { .xx-actions [data-polish] { transition: none; transform: none; } }