:root{--page:#f8fafc;--surface:#fff;--surface-subtle:#f8fafc;--text:#1e293b;--muted:#64748b;--soft:#94a3b8;--border:#e2e8f0;--border-light:#edf1f6;--brand:#2563eb;--brand-dark:#1d4ed8;--brand-soft:#eff6ff;--shadow:0 1px 3px #0f172a0d, 0 8px 24px #0f172a09;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--text);background:var(--page);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}:root[data-theme=dark]{--page:#0f172a;--surface:#1e293b;--surface-subtle:#172235;--text:#f1f5f9;--muted:#cbd5e1;--soft:#94a3b8;--border:#334155;--border-light:#2b3a50;--brand:#60a5fa;--brand-dark:#3b82f6;--brand-soft:#1e3557;--shadow:0 2px 6px #00000026, 0 10px 24px #0000001f}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button{cursor:pointer}button:focus-visible,[role=button]:focus-visible,a:focus-visible{outline-offset:2px;outline:3px solid 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button:focus-visible{color:var(--brand-dark);background:var(--brand-soft)}.viewer-layout{flex-direction:column;flex:1;gap:18px;margin-top:100px;display:flex}.card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:15px}.email-heading{padding:22px 24px 21px;position:relative}.heading-avatar{pointer-events:none;-webkit-user-select:none;user-select:none;width:120px;height:auto;margin-bottom:2px;position:absolute;bottom:100%;left:50%;transform:translate(-50%)}@media print{.heading-avatar{display:none}}.subject-row{border-bottom:1px solid var(--border-light);justify-content:space-between;align-items:flex-start;gap:20px;padding-bottom:17px;display:flex}.file-info{background:color-mix(in srgb, var(--surface) 92%, #6366f1);padding:14px 18px}.file-info 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8px;font-size:10px}.metadata-row{grid-template-columns:55px minmax(0,1fr);gap:8px}}.attachment-card{padding:17px 19px 19px}.section-title{color:var(--muted);letter-spacing:.06em;text-transform:uppercase;align-items:center;gap:8px;margin:0 0 13px;font-size:12px;font-weight:700;display:flex}.section-title svg{color:#3b82f6}.attachment-count{color:#2563eb;background:var(--brand-soft);text-align:center;letter-spacing:0;border-radius:999px;min-width:20px;padding:2px 6px;font-size:10px}.attachment-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));gap:9px;display:grid}.attachment-item{min-width:0;color:inherit;background:var(--surface-subtle);border:1px solid var(--border-light);border-radius:10px;align-items:center;gap:10px;padding:10px 11px;text-decoration:none;transition:border-color .15s,background-color 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#0000;align-items:center;gap:7px;padding:0 12px;font-size:12px;font-weight:600;display:inline-flex}.view-tab:hover{color:var(--text)}.view-tab.active{color:#3b82f6;border-bottom-color:#3b82f6}.copy-tab.done{color:#10b981}.toolbar-hint{color:var(--soft);align-self:center;font-size:10px}.html-view{background:#fff;flex:1;min-height:420px;padding:7px}.html-view iframe{background:#fff;border:0;border-radius:9px;width:100%;height:100%;min-height:420px;display:block}.text-view{min-height:420px;color:var(--text);background:var(--surface-subtle);white-space:pre-wrap;overflow-wrap:anywhere;flex:1;margin:0;padding:23px;font:12px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;overflow:auto}@media (width<=720px){.body-card{min-height:440px}.body-toolbar{padding:0 8px}.view-tab{padding:0 8px;font-size:11px}.toolbar-hint{display:none}}@media print{.card{box-shadow:none;break-inside:avoid}.body-card,.html-view{min-height:0;overflow:visible}.html-view,.html-view.hidden{display:block!important}.html-view iframe{height:100vh}}.drop-zone{text-align:center;background:var(--surface);width:min(680px,100%);box-shadow:var(--shadow);cursor:pointer;border:2px dashed #cbd5e1;border-radius:20px;margin:100px auto auto;padding:48px 46px 28px;transition:border-color .18s,background-color .18s,transform .18s;position:relative}:root[data-theme=dark] .drop-zone{border-color:#475569}.drop-zone:hover,.drop-zone.drag-active{background:color-mix(in srgb, var(--surface) 96%, #3b82f6);border-color:#2563eb}.drop-zone.drag-active{transform:scale(1.01)}.drop-avatar{pointer-events:none;-webkit-user-select:none;user-select:none;width:120px;height:auto;margin-bottom:2px;position:absolute;bottom:100%;left:50%;transform:translate(-50%)}.upload-icon{color:#2563eb;background:#eff6ff;border-radius:50%;place-items:center;width:78px;height:78px;margin:0 auto 21px;display:grid}:root[data-theme=dark] .upload-icon{color:#93c5fd;background:#293d5c}.drop-zone h1{color:var(--text);letter-spacing:-.5px;margin:0 0 10px;font-size:clamp(20px,3vw,24px);line-height:1.3}.drop-copy{color:var(--muted);margin:0;font-size:14px}.drop-copy strong{color:var(--text);font-weight:600}.drop-subcopy{color:var(--soft);margin:7px 0 22px;font-size:12px}.select-file{min-height:42px;padding:0 19px;font-size:13px}.privacy-note{color:var(--soft);border-top:1px solid var(--border-light);justify-content:center;align-items:center;gap:8px;margin-top:30px;padding-top:19px;font-size:11px;display:flex}.privacy-note svg{color:#10b981;flex:none}@media (width<=720px){.drop-zone{padding:38px 21px 23px}.privacy-note{text-align:left;align-items:flex-start;line-height:1.5}}.app-header{z-index:5;background:var(--surface);border-bottom:1px solid var(--border);flex:0 0 68px;height:68px;position:sticky;top:0;box-shadow:0 1px 3px #0f172a09}.header-inner{justify-content:space-between;align-items:center;gap:20px;width:min(1120px,100% - 48px);height:100%;margin:0 auto;display:flex}.brand{align-items:center;gap:12px;display:inline-flex}.brand-icon{color:#fff;background:#3b82f6;border-radius:11px;place-items:center;width:40px;height:40px;display:grid;box-shadow:0 4px 10px #2563eb33}.brand-copy{gap:1px;display:grid}.brand-copy strong{letter-spacing:-.25px;font-size:15px;font-weight:700}.brand-copy small{color:var(--soft);font-size:11px}.header-actions{align-items:center;gap:8px;display:flex}.button,.theme-toggle{border:1px solid #0000;border-radius:9px;justify-content:center;align-items:center;gap:8px;min-height:38px;font-size:12px;font-weight:600;transition:background-color .15s,border-color .15s,color .15s,transform .15s;display:inline-flex}.button{padding:0 12px}.button-muted,.theme-toggle{color:var(--muted);background:var(--surface-subtle);border-color:var(--border-light)}.button-muted:hover,.theme-toggle:hover{color:var(--brand-dark);background:var(--brand-soft);border-color:var(--border)}.theme-toggle{width:38px;padding:0}.button-primary{color:#fff;background:#2563eb;box-shadow:0 2px 4px #2563eb2e}.button-primary:hover{background:#1d4ed8;transform:translateY(-1px)}.button-danger{color:#fff;background:#dc2626;box-shadow:0 2px 4px #dc262633}.button-danger:hover{background:#b91c1c;transform:translateY(-1px)}@media (width<=720px){.header-inner{width:calc(100% - 32px)}.header-actions{gap:6px}.header-actions .button{padding:0 9px}.header-actions .button span,.brand-copy small{display:none}}.app-shell{min-height:100vh;color:var(--text);background:var(--page);flex-direction:column;transition:background-color .2s,color .2s;display:flex}.main-content{flex-direction:column;flex:1;width:min(1120px,100% - 48px);margin:0 auto;padding:34px 0 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