.app-shell{display:flex;flex-direction:column;height:100vh;height:100dvh;overflow:hidden;background:var(--bg)}.app-main{display:flex;flex:1;overflow:hidden;padding:0 24px 20px;gap:20px}.sidebar{width:var(--sidebar-width);min-width:340px;display:flex;flex-direction:column;gap:12px;overflow:hidden}.detail-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;text-align:center;padding:48px;gap:16px;animation:fadeInUp .4s var(--bounce) both}.empty-art{margin-bottom:4px;opacity:.85}.empty-title{font-size:17px;font-weight:600;color:var(--text-secondary);letter-spacing:-.2px}.empty-desc{font-size:13px;color:var(--text-muted);max-width:320px;line-height:1.6}.file-panel-header{padding:16px 18px 0;display:flex;align-items:center;justify-content:space-between}.file-panel-header h2{font-size:14px;font-weight:600;color:var(--text-primary);letter-spacing:-.2px}.file-panel-header span{font-size:11px;color:var(--text-muted)}@media (max-width: 1100px){.app-main{padding:0 16px 16px;gap:12px}.sidebar{min-width:280px}}@media (max-width: 900px){.app-main{flex-direction:column;padding:0 12px 12px;gap:10px}.sidebar{width:100%;min-width:0;max-height:45vh}}@media (max-width: 640px){.app-shell{padding-bottom:env(safe-area-inset-bottom,0px)}.app-main{padding:0 8px 8px;gap:8px}.empty-state{padding:24px 16px}.empty-desc{max-width:100%}}input,select,textarea,button{font-size:16px}button,.btn,.btn-icon,.btn-secondary,.btn-export,.btn-merge,.dropzone,.file-item,.header-gh-link,.header-icon-btn{min-height:44px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #2563EB;--primary-hover: #1D4ED8;--primary-light: #EFF6FF;--primary-glow: rgba(37, 99, 235, .15);--success: #059669;--success-light: #ECFDF5;--warning: #D97706;--warning-light: #FFFBEB;--danger: #DC2626;--danger-hover: #B91C1C;--danger-light: #FEF2F2;--bg: #F8FAFC;--bg-alt: #F1F5F9;--card-bg: #FFFFFF;--card-border: rgba(0, 0, 0, .06);--border: #E2E8F0;--border-focus: #2563EB;--text-primary: #0F172A;--text-secondary: #475569;--text-muted: #94A3B8;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-xl: 20px;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px rgba(0, 0, 0, .05), 0 10px 15px rgba(0, 0, 0, .05);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .06), 0 20px 40px rgba(0, 0, 0, .04);--shadow-glow: 0 0 0 4px var(--primary-glow);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition: .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: .3s cubic-bezier(.4, 0, .2, 1);--bounce: cubic-bezier(.34, 1.56, .64, 1);--sidebar-width: 420px}html,body,#root{height:100%;width:100%}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;font-feature-settings:"cv02","cv03","cv04","cv11";background:var(--bg);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}::selection{background:var(--primary-light);color:var(--primary-hover)}.card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition),transform var(--transition)}.card:hover{box-shadow:var(--shadow-md)}.bg-noise{position:relative}.bg-noise:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;opacity:.015;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");pointer-events:none;z-index:0}@keyframes fadeInUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:fadeInUp .35s var(--bounce) both}[data-theme=dark]{--primary: #3B82F6;--primary-hover: #60A5FA;--primary-light: #1E3A5F;--primary-glow: rgba(59, 130, 246, .2);--success: #34D399;--success-light: #064E3B;--warning: #FBBF24;--warning-light: #451A03;--danger: #F87171;--danger-hover: #FCA5A5;--danger-light: #450A0A;--bg: #0F172A;--bg-alt: #1E293B;--card-bg: #1E293B;--card-border: rgba(255, 255, 255, .06);--border: #334155;--border-focus: #3B82F6;--text-primary: #F1F5F9;--text-secondary: #94A3B8;--text-muted: #64748B;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .2);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3), 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 6px rgba(0, 0, 0, .3), 0 10px 15px rgba(0, 0, 0, .2);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .3), 0 20px 40px rgba(0, 0, 0, .2)}[data-theme=dark] ::selection{background:var(--primary-light);color:var(--primary-hover)}[data-theme=dark] .bg-noise:before{opacity:.04}