:root{color-scheme:light dark;--bg:#f4f6fb;--panel:#ffffff;--text:#1f2533;--muted:#6c758f;--primary:#5c6ac4;--primary-dark:#4b56a4;--secondary:#f4f1ff;--border:#e3e8f4;--shadow:0 20px 40px rgba(15, 30, 67, 0.08);font-family:"Inter","Segoe UI",system-ui,-apple-system,sans-serif}*,*::before,*::after{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);min-height:100vh}.face-shape-app{max-width:1100px;margin:0 auto;padding:2rem 1rem 4rem}.app-header{text-align:center;margin-bottom:2rem}.app-header h1{margin:0 0 .5rem;font-size:clamp(2rem, 4vw, 2.8rem)}.app-header p{color:var(--muted);margin:0}.mode-toggle{display:flex;justify-content:center;gap:1rem;margin-bottom:1.5rem}.toggle-btn{padding:.75rem 1.5rem;border-radius:999px;border:1px solid #fff0;background:var(--secondary);color:var(--text);font-weight:600;cursor:pointer;transition:all 0.2s ease}.toggle-btn.active{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:var(--shadow)}.tool-body{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:1.5rem}.panel{background:var(--panel);border-radius:24px;padding:1.5rem;box-shadow:var(--shadow)}.controls-panel{display:flex;flex-direction:column;gap:1.5rem}.mode{display:none;flex-direction:column;gap:1rem}.mode.active{display:flex}.file-label{border:2px dashed var(--border);border-radius:16px;padding:1.5rem;display:flex;flex-direction:column;gap:.5rem;color:var(--muted);cursor:pointer;text-align:center}.file-label input{display:none}.preview-wrapper,.video-wrapper{position:relative;width:100%;border-radius:20px;overflow:hidden;background:#0b1226;min-height:280px}#photoPreview,#photoCanvas,#liveVideo,#liveCanvas{width:100%;height:100%;display:block;object-fit:cover}#photoCanvas,#liveCanvas{position:absolute;left:0;top:0;pointer-events:none}.camera-overlay{position:absolute;inset:0;background:rgb(15 30 67 / .5);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600}.camera-actions{display:flex;flex-wrap:wrap;gap:.75rem}.primary-btn,.secondary-btn,.ghost-btn{border:none;border-radius:999px;padding:.75rem 1.5rem;font-weight:600;cursor:pointer;transition:transform 0.15s ease}.primary-btn{background:var(--primary);color:#fff}.primary-btn:disabled,.secondary-btn:disabled,.ghost-btn:disabled{opacity:.6;cursor:not-allowed}.primary-btn:not(:disabled):hover,.secondary-btn:not(:disabled):hover,.ghost-btn:not(:disabled):hover{transform:translateY(-1px)}.secondary-btn{background:var(--secondary);color:var(--primary-dark)}.ghost-btn{background:#fff0;border:1px solid var(--border);color:var(--muted)}.results-panel h2{margin-top:0}.result-message{padding:1rem 1.25rem;background:var(--secondary);border-radius:16px;color:var(--primary-dark);font-weight:600;margin-bottom:1.25rem}.result-message.error{background:#ffe5e5;color:#c62828}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin-bottom:1.25rem}.metric-card,.shape-card,.style-card{border:1px solid var(--border);border-radius:16px;padding:1rem;background:rgb(255 255 255 / .9)}.metric-card h3,.shape-card h3,.style-card h3{margin:0 0 .5rem;font-size:.95rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.metric-card p{margin:0;font-size:1.2rem;font-weight:600}#shapeName{font-size:1.7rem;font-weight:700;margin:.25rem 0}#shapeExplanation{margin:0;color:var(--muted)}.style-card ul{margin:0;padding-left:1.25rem;color:var(--text)}.style-card li{margin-bottom:.5rem}@media (max-width:960px){.tool-body{grid-template-columns:1fr}}@media (max-width:640px){.face-shape-app{padding:1.5rem 1rem 3rem}.panel{padding:1.25rem}.camera-actions{flex-direction:column}}