:root{--bg-dark: hsl(0 0% 90%);--bg: hsl(0 0% 95%);--bg-light: hsl(0 0% 100%);--text: hsl(0 0% 5%);--text-muted: hsl(0 0% 30%);--accent: hsl(220 70% 45%);--border: hsl(0 0% 70%);--gradient: linear-gradient(0deg, var(--bg), 95%, var(--bg-light));--gradient-hover: linear-gradient(0deg, var(--bg), var(--bg-light));--highlight: hsl(0 0% 100%);--border-card: solid 1px var(--bg);--shadow: 0px 2px 2px hsla(0, 0%, 0%, .07), 0px 4px 4px hsla(0, 0%, 0%, .15);--danger: #dc2626;--danger-hover: #b91c1c;--danger-bg: #fef2f2;--danger-text: #dc2626;--success-bg: #e8f5e9;--success-text: #1b5e20;--info-bg: #e3f2fd;--info-text: #1565c0;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: 1rem}body.dark{--bg-dark: hsl(0 0% 0%);--bg: hsl(0 0% 5%);--bg-light: hsl(0 0% 10%);--text: hsl(0 0% 95%);--text-muted: hsl(0 0% 65%);--accent: hsl(210 85% 42%);--border: hsl(0 0% 30%);--gradient: linear-gradient(0deg, var(--bg), 95%, var(--bg-light));--gradient-hover: linear-gradient(0deg, var(--bg), var(--bg-light));--highlight: hsl(0 0% 60%);--border-card: solid 1px var(--border);--danger: #ef4444;--danger-hover: #dc2626;--danger-bg: hsl(0 50% 12%);--danger-text: #fca5a5;--success-bg: hsl(120 30% 12%);--success-text: #86efac;--info-bg: hsl(210 40% 15%);--info-text: #93c5fd}body.dark input::placeholder,body.dark textarea::placeholder{color:#9e9e9e!important;opacity:1!important}body.dark .letter-link,body.dark a.text-muted{color:#8cb3d9}h1{font-size:2.5rem;font-weight:700;color:var(--text);margin:0 0 var(--spacing-md) 0;line-height:1.2}h2{font-size:1.75rem;font-weight:600;color:var(--text);margin:0 0 var(--spacing-sm) 0;line-height:1.3}h3{font-size:1.25rem;font-weight:600;color:var(--text);margin:0 0 var(--spacing-xs) 0;line-height:1.4}h4{font-size:1rem;font-weight:600;color:var(--text-muted);margin:0 0 var(--spacing-xs) 0;line-height:1.5;text-transform:uppercase;letter-spacing:.05em;font-size:.875rem}p{color:var(--text-muted);margin:0 0 var(--spacing-sm) 0;line-height:1.6}@media(max-width:640px){h1{font-size:2rem}h2{font-size:1.5rem}}:root{--font-xs: .75rem;--font-sm: .875rem;--font-base: 1rem;--font-lg: 1.125rem;--font-xl: 1.25rem}.card{background:var(--bg-light);border:var(--border-card);border-top:solid 1px var(--highlight);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:var(--spacing-md)}.card-hover{transition:all .2s ease;cursor:pointer}.card-hover:hover{transform:translateY(-2px);box-shadow:0 8px 16px #0000001f}.divider{border:none;border-top:solid 1px var(--border);margin:var(--spacing-md) 0}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.flex{display:flex}.flex-column{flex-direction:column}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.gap-lg{gap:var(--spacing-lg)}.btn-primary{background:var(--text);color:var(--bg);padding:.4rem .75rem;border-radius:var(--radius-md);font-weight:600;font-size:var(--font-sm);transition:all .2s ease}.btn-primary:hover:not(:disabled){transform:scale(1.025)}.btn-primary:disabled{opacity:.5}.btn-secondary{background:var(--bg);color:var(--text);padding:.4rem .75rem;border:1px solid var(--border);border-radius:var(--radius-md);font-weight:500;font-size:var(--font-sm);transition:all .2s ease}.btn-secondary:hover:not(:disabled){background:var(--bg-light);border-color:var(--text-muted)}.btn-secondary:disabled{opacity:.5}.btn-ghost{background:transparent;color:var(--text);padding:.25rem;border-radius:var(--radius-sm);transition:all .2s ease}.btn-ghost:hover:not(:disabled){background:var(--bg-light)}.btn-card{background:var(--bg-light);color:var(--text);padding:var(--spacing-xs) var(--spacing-sm);border:var(--border-card);border-top:solid 1px var(--highlight);border-radius:var(--radius-md);box-shadow:var(--shadow);font-weight:600;transition:all .2s ease}.btn-card:hover:not(:disabled){transform:scale(1.025)}.btn-card:active:not(:disabled){transform:scale(.98)}.btn-card:disabled{opacity:.5}:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}html{scrollbar-gutter:stable}html:has(.admin-layout){scrollbar-gutter:auto}body{background:var(--bg-dark);color:var(--text-muted);margin:0}button{font-family:inherit;font-size:1rem;cursor:pointer;border:none;background:none;padding:0;margin:0;color:inherit}button:disabled{cursor:not-allowed}input[type=text],input[type=number],input[type=email],input[type=password],textarea,select{font-family:inherit;font-size:1rem;line-height:1.5}input:focus-visible,textarea:focus-visible,select:focus-visible,button:focus-visible{outline:2px solid var(--text-muted);outline-offset:2px}a{color:var(--text);transition:color .2s ease}a:hover{color:var(--text-muted)}.header{position:sticky;top:0;z-index:50;padding:1rem 1.25rem 0}.header-inner{width:min(1240px,100%);margin:0 auto;position:relative;overflow:visible;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:1rem;padding:.95rem 1rem;border-radius:28px;border:1px solid rgba(217,207,191,.95);background:#fffaf2f0;box-shadow:0 18px 42px #1d1a1414}.header-brand-slot{position:relative;flex:1 1 auto;min-width:0;min-height:54px;display:flex;align-items:center;gap:.85rem}.main-title{display:flex;flex-direction:column;gap:.15rem;color:var(--text);text-decoration:none;transition:opacity .22s ease,transform .28s ease}.header-brand-slot.has-active-dock .main-title{opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-.35rem)}.header-brand-slot.show-title .main-title{opacity:1;visibility:visible;pointer-events:auto;transform:none;flex-shrink:0}.header-brand-slot.has-active-dock{z-index:2}.header-brand-slot.has-active-dock .main-title *{pointer-events:none}.header-brand-slot.show-title .main-title *{pointer-events:auto}.header-dock{position:absolute;inset:0;display:flex;align-items:center;width:100%;min-width:0;overflow:visible;z-index:3;opacity:0;pointer-events:none;transform:translateY(-.35rem);transition:opacity .22s ease,transform .28s ease}.header-dock>*{width:100%;min-width:0}.header-dock.is-active{pointer-events:auto}.header-dock.is-active.is-visible{opacity:1;transform:translateY(0)}.header-brand-slot.show-title .header-dock{position:static;flex:1 1 auto;transform:none;z-index:auto;min-height:1.7rem}.main-title-label{font-size:.68rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--accent)}.main-title-name{font-family:Playfair Display,Georgia,Times New 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ease}.page-selector:hover,.page-selector:focus-visible{color:var(--text);background:#ffffffb8}.page-selector.active{color:var(--text)}.page-selector.active:after{content:"";position:absolute;bottom:.35rem;left:50%;transform:translate(-50%);width:60%;height:2.5px;border-radius:2px;background:var(--accent)}.menu-toggle{display:none;min-width:44px;min-height:44px;padding:0 .9rem;border-radius:999px;border:1px solid rgba(217,207,191,.95);background:#ffffffb8;color:var(--text);font-size:.88rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.header--scroll-reveal{position:fixed;left:0;right:0;transition:opacity .25s ease,transform .25s ease}.header--scroll-reveal.header--hidden{opacity:0;transform:translateY(-110%);pointer-events:none}@media(max-width:900px){.header{padding:.8rem 1rem 0}.header-inner{grid-template-columns:minmax(0,1fr) auto}.menu-toggle{display:inline-flex;align-items:center;justify-content:center;justify-self:end}.nav{display:none;grid-column:1 / -1;justify-self:stretch;flex-direction:column;align-items:stretch;gap:.3rem;padding-top:.35rem}.nav.open{display:flex}.page-selector{width:100%;justify-content:flex-start;padding-inline:1rem;background:#ffffffb3}}.error-boundary{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;background-color:var(--bg)}.error-boundary__content{max-width:600px;background:var(--bg-light);border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow);text-align:center}.error-boundary__title{color:var(--danger);margin:0 0 1rem;font-size:1.5rem}.error-boundary__message{color:var(--text-muted);margin:0 0 1.5rem;line-height:1.6}.error-boundary__details{text-align:left;margin:1.5rem 0;background:var(--bg);border-radius:var(--radius-sm);padding:1rem}.error-boundary__details summary{cursor:pointer;color:var(--text);font-weight:500;margin-bottom:.5rem}.error-boundary__stack{font-family:monospace;font-size:.75rem;line-height:1.4;overflow-x:auto;white-space:pre-wrap;word-break:break-word;margin:.5rem 0 0;color:var(--text-muted)}.error-boundary__actions{display:flex;gap:1rem;justify-content:center}.error-boundary__button{padding:.75rem 1.5rem;border-radius:var(--radius-md);font-size:1rem;font-weight:500;cursor:pointer;border:none;transition:background-color .2s,transform .1s}.error-boundary__button:hover{transform:translateY(-1px)}.error-boundary__button:active{transform:translateY(0)}.error-boundary__button--primary{background-color:var(--accent);color:#fff}.error-boundary__button--primary:hover{opacity:.9}.error-boundary__button--secondary{background-color:var(--text-muted);color:#fff}.error-boundary__button--secondary:hover{opacity:.9}#root{margin:0}.main-page-layout,.public-letter-shell{position:relative}.public-site-shell,.public-letter-shell{--bg-dark: #eee2cf;--bg: #f5ede1;--bg-light: #fffaf2;--bg-raised: rgba(255, 253, 248, .92);--text: #2d241d;--text-muted: #6d5f51;--accent: #1f6d7a;--accent-strong: #174f58;--accent-soft: #dff1f5;--accent-soft-strong: #c9e4e8;--border: #d9cfbf;--border-light: rgba(217, 207, 191, .6);--highlight: rgba(255, 255, 255, .95);--border-card: 1px solid rgba(217, 207, 191, .95);--shadow: 0 22px 60px rgba(29, 26, 20, .08);--shadow-soft: 0 12px 32px rgba(29, 26, 20, .07);color:var(--text);font-family:Instrument Sans,Avenir Next,Segoe UI,sans-serif;text-align:left;min-height:100vh;background:radial-gradient(circle at top right,rgba(31,109,122,.12),transparent 28%),radial-gradient(circle at 0% 12%,rgba(196,147,94,.2),transparent 24%),linear-gradient(180deg,#f3eadc,#f8f0e5 26%,#f5ede1 60%,#efe4d2)}.public-site-shell:before,.public-letter-shell:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.22) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.18) 1px,transparent 1px);background-size:44px 44px;-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.18),transparent 78%);mask-image:linear-gradient(180deg,rgba(0,0,0,.18),transparent 78%);opacity:.35}.public-site-shell *,.public-site-shell *:before,.public-site-shell *:after,.public-letter-shell *,.public-letter-shell *:before,.public-letter-shell *:after{box-sizing:border-box}.public-site-shell a,.public-letter-shell a{color:var(--text)}.public-site-shell a:hover,.public-letter-shell a:hover{color:var(--accent-strong)}.body-layout{width:min(100%,1180px);margin:0 auto;padding:1.8rem 1.5rem 4rem;display:flex;flex-direction:column;gap:2.5rem;position:relative;z-index:1}.public-site-shell .body-layout{min-width:0}.public-site-shell .body-layout>*,.public-letter-shell>*{min-width:0}.public-site-shell .btn-card,.public-letter-shell .detail-action-btn{border:1px solid 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3rem;gap:1.6rem}}.toast-container{position:fixed;top:100px;right:var(--spacing-lg);z-index:10000;display:flex;flex-direction:column;gap:.4rem;pointer-events:none}.toast{padding:.5rem .85rem;border-radius:var(--radius-md);font-size:var(--font-sm);font-weight:600;cursor:pointer;pointer-events:auto;animation:toastSlideIn .2s ease-out;max-width:320px}@keyframes toastSlideIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.toast-success{background:var(--text);color:var(--bg);box-shadow:0 4px 16px #0003}.toast-error{background:#dc2626;color:#fff;box-shadow:0 4px 16px #0003}.toast-info{background:var(--text);color:var(--bg);opacity:.85;box-shadow:0 4px 16px #0003}.toast-message{flex:1}@media(max-width:480px){.toast-container{left:1rem;right:1rem}.toast{max-width:100%}}