*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f5f7fa;--sidebar-bg: #eef0f5;--sidebar-text: #1a2030;--sidebar-hover: #e0e4ee;--sidebar-active: #3b82f6;--sidebar-border: #d8dce6;--panel-bg: #ffffff;--border: #e5e9f0;--text: #1a2030;--text-muted: #6b7a99;--blue: #3b82f6;--blue-dark: #2563eb;--red: #ef4444;--green: #22c55e;--yellow: #f59e0b;--shadow: 0 1px 3px rgba(0,0,0,.1);--unread-bg: #eff6ff;--safe-bottom: env(safe-area-inset-bottom, 0px)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);height:100vh;overflow:hidden}#root{height:100vh}.app-shell{display:flex;flex-direction:column;height:100vh;overflow:hidden}.app-shell-body{flex:1;display:flex;flex-direction:column-reverse;overflow:hidden;min-height:0}.app-shell-body>*:not(.nav-bottom){flex:1;overflow:hidden;min-height:0}.app-header{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid 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.mail-row-absender{font-weight:700}.mail-row-kopf-rechts{display:flex;align-items:center;gap:6px;flex-shrink:0}.mail-row-konto-badge{display:flex;align-items:center;gap:4px;font-size:11px;color:var(--text-muted)}.mail-row-konto-icon{height:14px;width:auto;max-width:32px;object-fit:contain;flex-shrink:0}.mail-row-konto-icon.rund{width:14px;height:14px;border-radius:50%;object-fit:cover}.mail-row-konto-icon.dunkel{filter:brightness(0);opacity:.75}.mail-row-konto-emoji{font-size:13px;line-height:1}.mail-row-konto-text{white-space:nowrap}.mail-row-datum{font-size:12px;color:var(--text-muted);flex-shrink:0}.mail-row-betreff{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:2px}.mail-row.unread .mail-row-betreff{font-weight:600}.mail-row-vorschau{font-size:13px;color:var(--text-muted);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mail-row-meta{display:flex;gap:6px;margin-top:4px;align-items:center}.mail-row-badge{font-size:11px;padding:1px 7px;border-radius:8px;background:var(--border);color:var(--text-muted)}.hinweis-leer{padding:32px 20px;text-align:center;color:var(--text-muted);font-size:14px;line-height:1.6}button{cursor:pointer;border:none;background:none;font-family:inherit;font-size:inherit}input,textarea,select{font-family:inherit;font-size:inherit}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:6px;font-weight:500;font-size:14px;transition:background 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