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var(--ruled-extend));padding-left:var(--ruled-extend);width:calc(100% + var(--ruled-extend));box-sizing:border-box;background-image:repeating-linear-gradient(#0000 0 calc(1lh - 1px),#b8d0ea calc(1lh - 1px) 1lh);background-position:0 0;background-repeat:repeat-y;background-size:100% 1lh}.letter-surface.border-lined .ProseMirror :is(p,h1,h2,li){line-height:var(--ruled-line-height);background:0 0}.letter-surface.border-lined .ProseMirror>*+*{margin-top:0}.border-picker-option .border-picker-preview.border-lined{--ruled-extend:0px;--ruled-margin:22px;--ruled-line-height:1.2;background-image:linear-gradient(90deg,#f4a0a0 1px,#0000 1px);position:relative}.border-picker-option .border-picker-preview.border-lined:after{content:"";line-height:var(--ruled-line-height);pointer-events:none;background-image:repeating-linear-gradient(#0000 0 calc(1lh - 1px),#b8d0ea calc(1lh - 1px) 1lh);background-position:0 4px;background-repeat:repeat-y;background-size:100% 1lh;position:absolute;inset:0}.letter-surface.border-stamp-cut,.border-picker-preview.border-stamp-cut{--stamp-paper:#ead9a8;--stamp-edge:#b8945a;--stamp-shadow:#48341038;background-color:var(--stamp-paper);background-image:radial-gradient(circle at 50% 0%, transparent 4px, var(--stamp-edge) 4px 5px, transparent 5px), radial-gradient(circle at 100% 50%, transparent 4px, var(--stamp-edge) 4px 5px, transparent 5px), radial-gradient(circle at 50% 100%, transparent 4px, var(--stamp-edge) 4px 5px, transparent 5px), radial-gradient(circle at 0% 50%, transparent 4px, var(--stamp-edge) 4px 5px, transparent 5px), linear-gradient(155deg, #f3e5c0 0%, #e8d4a0 42%, #dcc48a 100%);border:2px solid var(--stamp-edge);box-shadow:inset 0 0 0 8px #fff8e073, 0 3px 14px var(--stamp-shadow);background-position:top,100%,bottom,0,50%;background-repeat:repeat-x,repeat-y,repeat-x,repeat-y,no-repeat;background-size:10px 5px,5px 10px,10px 5px,5px 10px,100% 100%}.letter-surface.border-stamp-cut .letter-border-frame{background:0 0}.border-picker-option .border-picker-preview.border-stamp-cut{background-size:8px 4px,4px 8px,8px 4px,4px 8px,100% 100%;box-shadow:inset 0 0 0 4px #fff8e073}.border-picker-option .border-picker-preview.border-soft{border-width:2px;border-radius:10px;box-shadow:inset 0 0 0 3px #fff,inset 0 0 0 4px #fce4ec}.border-picker-option .border-picker-preview.border-double{border-width:3px}.border-picker-preview.border-none{border:1px solid var(--color-border)}.toolbar-sheet-root{z-index:200;position:fixed;inset:0}.toolbar-sheet-backdrop{cursor:pointer;background:#0006;border:none;position:absolute;inset:0}.toolbar-sheet{background:var(--color-surface);border-radius:16px 16px 0 0;flex-direction:column;max-height:70vh;display:flex;position:absolute;bottom:0;left:0;right:0;box-shadow:0 -4px 24px #00000026}.toolbar-sheet-header{border-bottom:1px solid var(--color-border);flex-shrink:0;justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.toolbar-sheet-title{font-size:1rem;font-weight:600}.toolbar-sheet-done{color:var(--color-primary);cursor:pointer;background:0 0;border:none;min-height:44px;padding:0 8px;font-size:1rem;font-weight:600}.toolbar-sheet-body{-webkit-overflow-scrolling:touch;padding:12px 16px 24px;overflow-y:auto}.docs-color-palette-mobile{width:100%;box-shadow:none;border:none;padding:0;position:static}.docs-color-palette-mobile .docs-color-grid{grid-template-columns:repeat(7,1fr);gap:8px}.docs-color-palette-mobile .docs-color-swatch{aspect-ratio:1;width:100%;height:auto;min-height:36px}.docs-align-menu-mobile{box-shadow:none;border:none;justify-content:space-around;padding:8px 0;position:static}.docs-align-menu-mobile .docs-align-option{width:56px;height:56px}@media (max-width:640px){.container{padding:16px 12px}.home-hero{padding:24px 16px 32px}.home-brand{font-size:clamp(1.55rem,8vw,2.15rem)}.account-menu-trigger{width:44px;height:44px}.account-menu-section input{min-height:48px;font-size:16px}.password-input-toggle{width:44px;height:44px}.account-menu-section .btn,.account-menu-signout{min-height:48px}.dashboard-header{flex-wrap:wrap;gap:12px}.dashboard-header .btn-primary{width:100%;min-height:48px;font-size:1rem}.project-row{flex-direction:column;align-items:stretch;gap:12px}.project-row-actions{flex-wrap:wrap}.project-row-actions .btn{flex:1;min-height:44px}.letter-surface{min-height:360px;padding:24px 16px}.letter-bilingual{grid-template-columns:1fr;gap:20px}.letter-pane:first-child{border-right:none;border-bottom:1px solid var(--color-border);padding-bottom:16px;padding-right:0}.letter-pane:last-child{padding-top:4px;padding-left:0}.letter-pane .ProseMirror{min-height:240px}.letter-surface.border-lined{--ruled-extend:16px;--ruled-margin:28px}.letter-title{font-size:1.2rem}.docs-toolbar-wrap{border-left:none;border-right:none;border-radius:0;margin-left:-12px;margin-right:-12px}.docs-toolbar-scroll{-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;scrollbar-width:none;overflow-x:auto}.docs-toolbar-scroll::-webkit-scrollbar{display:none}.docs-toolbar{flex-wrap:nowrap;gap:6px;padding:8px 12px}.docs-toolbar-secondary{flex-wrap:wrap;gap:10px;padding:10px 12px}.docs-btn{flex-shrink:0;width:44px;height:44px}.docs-select{flex-shrink:0;min-height:44px;font-size:16px}.docs-style-select{min-width:108px;max-width:130px}.docs-size-select{width:56px}.docs-toolbar .font-picker-trigger{touch-action:manipulation;min-width:110px;max-width:140px;min-height:44px;font-size:16px}.docs-toolbar .border-picker-trigger{touch-action:manipulation;width:auto;min-width:0;height:44px;padding:0 6px 0 4px}.border-picker-grid{grid-template-columns:repeat(3,1fr);gap:10px}.border-picker-option{aspect-ratio:4/5;touch-action:manipulation;min-height:0}.font-picker-option{touch-action:manipulation;min-height:48px;padding:12px 14px}.font-picker-trigger{touch-action:manipulation;min-height:44px}.border-picker-trigger{touch-action:manipulation}.font-picker-menu,.border-picker-menu,.docs-color-palette{max-width:min(320px,100vw - 24px)}.letter-editor-actions{flex-direction:column;align-items:stretch;gap:8px}.letter-editor-actions .btn{width:100%}.share-invite-form{flex-direction:column}.share-invite-form .btn-primary{width:100%;min-height:48px}.share-role-select{width:100%;min-height:48px;font-size:16px}.share-access-row{flex-direction:column;align-items:stretch}.share-access-actions{width:100%}.share-access-actions .share-role-select{flex:1}.share-access-actions .btn{min-height:48px}.editor-top-bar .btn-primary{min-height:44px}.editor-layout-with-comments{grid-template-columns:1fr}.comments-panel{max-height:none;position:static}.comments-compose textarea,.comment-reply-form textarea{font-size:16px}.comments-compose-actions .btn,.comment-reply-form .btn{min-height:48px}.btn{min-height:44px}input,textarea,select{font-size:16px}}