:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--primary: #6366f1;--primary-hover: #4f46e5;--secondary: #ec4899;--accent: #06b6d4}:root,.dark{color-scheme:dark;--bg: #0f172a;--card-bg: rgba(30, 41, 59, .7);--nav-bg: rgba(15, 23, 42, .8);--text-main: #f8fafc;--text-muted: #94a3b8;--border: rgba(255, 255, 255, .1);--input-bg: rgba(0, 0, 0, .2);--shadow: rgba(0, 0, 0, .5);--canvas-bg: radial-gradient(circle at center, #1e293b 0%, #0f172a 100%);--grid-color: rgba(255, 255, 255, .05);--path-color: rgba(255, 255, 255, .2);--dancer-border: #ffffff}.light{color-scheme:light;--bg: #f1f5f9;--card-bg: rgba(255, 255, 255, .9);--nav-bg: rgba(255, 255, 255, .8);--text-main: #0f172a;--text-muted: #64748b;--border: rgba(0, 0, 0, .1);--input-bg: #ffffff;--shadow: rgba(0, 0, 0, .05);--canvas-bg: radial-gradient(circle at center, #f8fafc 0%, #e2e8f0 100%);--grid-color: rgba(0, 0, 0, .05);--path-color: rgba(0, 0, 0, .1);--dancer-border: #ffffff}body{min-height:100vh;overflow-x:hidden;background-color:var(--bg);color:var(--text-main);transition:background-color .3s,color .3s}a{font-weight:500;color:var(--primary);text-decoration:inherit;transition:color .2s}a:hover{color:var(--secondary)}h1,h2,h3{color:var(--text-main);line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:var(--primary);color:#fff;cursor:pointer;transition:all .25s}button:hover{background-color:var(--primary-hover);box-shadow:0 0 15px #6366f166;transform:translateY(-2px)}button:active{transform:translateY(0)}button:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.btn-primary{background-color:var(--primary);color:#fff}.btn-secondary{background-color:transparent;border:1px solid var(--primary);color:var(--primary)}.btn-secondary:hover{background-color:var(--primary);color:#fff}.btn-small{padding:.4em .8em;font-size:.9em}.text-muted{color:var(--text-muted)}:root{--bg: #0f172a;--card-bg: #1e293b;--primary: #6366f1;--primary-hover: #4f46e5;--secondary: #334155;--text-main: #f8fafc;--text-muted: #94a3b8;--border: #334155;--accent: #f43f5e;--success: #10b981}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg);color:var(--text-main);font-family:Pretendard,-apple-system,BlinkMacSystemFont,system-ui,Roboto,sans-serif;-webkit-font-smoothing:antialiased}.app-container{min-height:100vh;display:flex;flex-direction:column}.navbar{padding:1.25rem 2rem;background:#0f172acc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.logo{font-size:1.5rem;font-weight:800;letter-spacing:-.025em;background:linear-gradient(135deg,#818cf8,#c084fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.content{flex:1;padding:2rem;max-width:1600px;margin:0 auto;width:100%}.upload-section{height:60vh;display:flex;justify-content:center;align-items:center}.upload-box{border:2px dashed var(--border);border-radius:1.5rem;padding:4rem;text-align:center;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);background:var(--card-bg);max-width:500px;width:100%}.upload-box:hover{border-color:var(--primary);transform:translateY(-4px);background:#6366f10d}.upload-box h3{margin:1.5rem 0 .5rem;font-size:1.25rem}.upload-box p{color:var(--text-muted)}.analysis-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}.calibration-pane,.result-pane{background:var(--card-bg);border-radius:1.25rem;padding:1.5rem;border:1px solid var(--border);box-shadow:0 20px 25px -5px #0000001a}.pane-header{margin-bottom:1.5rem}.pane-header h3{font-size:1.125rem;margin-bottom:.25rem}.pane-header p{font-size:.875rem;color:var(--text-muted)}.canvas-container,.video-container{background:#000;border-radius:.75rem;overflow:hidden;position:relative;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center}canvas{max-width:100%;max-height:100%;height:auto;display:block}.crosshair{cursor:crosshair}video{width:100%;height:100%;object-fit:contain}.controls{margin-top:1.5rem;display:flex;align-items:center;gap:1rem}.points-status{flex:1;font-size:.875rem;font-weight:600;color:var(--primary)}.btn-primary,.btn-outline,.btn-success{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.25rem;border-radius:.75rem;font-weight:600;font-size:.875rem;cursor:pointer;transition:all .2s;border:none}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-main)}.btn-outline:hover{background:var(--secondary)}.btn-success{background:var(--success);color:#fff;text-decoration:none;width:fit-content}.btn-success:hover{opacity:.9}.status-msg{margin-top:1rem;padding:1rem;background:#6366f11a;border-radius:.75rem;color:var(--primary);font-size:.875rem;text-align:center;animation:pulse 2s infinite}.error-msg{margin-top:1rem;padding:1rem;background:#f43f5e1a;border-radius:.75rem;color:var(--accent);font-size:.875rem;display:flex;align-items:center;gap:.5rem}@keyframes pulse{0%{opacity:1}50%{opacity:.6}to{opacity:1}}.spinner{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.result-actions{margin-top:1.5rem;display:flex;justify-content:center}@media(max-width:1024px){.analysis-grid{grid-template-columns:1fr}}
