:root{--bg: #0f172a;--surface: #1e293b;--surface-2: #334155;--text: #f8fafc;--muted: #94a3b8;--primary: #3b82f6;--primary-hover: #2563eb;--accent-a: #22c55e;--accent-b: #ef4444;--border: #475569;--radius: 12px;--sidebar-w: 380px;font-family:Segoe UI,system-ui,-apple-system,sans-serif}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.app{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-w);max-width:100%;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:1000;overflow:hidden}.sidebar-header{padding:1.25rem 1.25rem .5rem}.sidebar-header h1{margin:0;font-size:1.35rem;font-weight:700}.sidebar-header p{margin:.25rem 0 0;color:var(--muted);font-size:.85rem}.route-inputs{padding:.75rem 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var(--border)}.map-wrap{min-height:55vh}.directions{max-height:120px}}