:root{--bg: #0b0f14;--panel: #121824;--panel-2: #0f1520;--text: #e6edf3;--muted: #9fb0c3;--brand: #0ea5e9;--danger: #ef4444;--ok: #10b981;--footer-h: 88px;--header-h: 56px;--safe-top: 0px;--safe-right: 0px;--safe-bottom: 0px;--safe-left: 0px;--max-video-height: calc(100dvh - var(--footer-h) - var(--header-h) - 188px)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";overflow:hidden}.app-shell{display:flex;flex-direction:column;min-height:100%}.app-header{padding:12px 16px;border-bottom:1px solid #1f2733;background:var(--panel)}.app-header h1{margin:0;font-size:18px;font-weight:600}.app-main{flex:1;padding:16px;height:calc(100dvh - var(--header-h));padding-bottom:calc(16px + var(--footer-h) + env(safe-area-inset-bottom));overflow:hidden}.card{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px 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