:root{--bg-main:#fbfbfd;--bg-surface:#fff;--bg-surface-subtle:#f5f5f7;--bg-surface-elevated:#fff;--text-primary:#1d1d1f;--text-secondary:#6e6e73;--text-tertiary:#86868b;--text-inverse:#fff;--border-hairline:#00000014;--border-medium:#00000024;--border-focus:#0071e3;--accent-gold:#c5a059;--accent-blue:#0071e3;--accent-emerald:#34c759;--accent-amber:#ff9500;--accent-rose:#ff3b30;--shadow-subtle:0 2px 8px #0000000a;--shadow-card:0 4px 20px #0000000f;--shadow-floating:0 12px 32px #0000001f;--shadow-stage:0 20px 48px -12px #00000024;--radius-sm:8px;--radius-md:14px;--radius-lg:20px;--radius-pill:9999px;--ease-spring:cubic-bezier(.16, 1, .3, 1);--ease-smooth:cubic-bezier(.25, .1, .25, 1);--transition-fast:.16s var(--ease-spring);--transition-normal:.26s var(--ease-spring);--transition-slow:.4s var(--ease-smooth)}*{box-sizing:border-box;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;padding:0}html,body{background-color:var(--bg-main);max-width:100vw;color:var(--text-primary);letter-spacing:-.015em;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,SF Pro Text,Helvetica Neue,Helvetica,Arial,sans-serif;line-height:1.45;overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{border-radius:var(--radius-pill);background:#00000029}h1,h2,h3,h4,h5{letter-spacing:-.024em;color:var(--text-primary);font-weight:600}.brand-title{letter-spacing:-.035em;font-size:clamp(2rem,4vw,3rem);font-weight:700;line-height:1.1}.brand-subtitle{color:var(--text-secondary);margin-top:8px;font-size:clamp(1rem,1.8vw,1.25rem);font-weight:400}.app-container{flex-direction:column;min-height:100vh;display:flex}.main-content{flex:1;width:100%;max-width:1240px;margin:0 auto;padding:24px 20px 80px}.navbar{z-index:100;-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-hairline);background:#fbfbfdd1;justify-content:space-between;align-items:center;padding:14px 28px;display:flex;position:sticky;top:0}.logo-wrap{cursor:pointer;align-items:center;gap:10px;display:flex}.logo-badge{color:#fff;letter-spacing:-.5px;background:#000;border-radius:6px;justify-content:center;align-items:center;width:28px;height:28px;font-size:13px;font-weight:800;display:flex}.logo-text{letter-spacing:-.03em;color:var(--text-primary);font-size:17px;font-weight:700}.nav-actions{align-items:center;gap:12px;display:flex}.market-pill{background:var(--bg-surface);border:1px solid var(--border-hairline);border-radius:var(--radius-pill);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);align-items:center;gap:6px;padding:6px 14px;font-size:13px;font-weight:500;display:inline-flex}.market-pill:hover{background:var(--bg-surface-subtle);color:var(--text-primary);border-color:var(--border-medium)}.progress-bar-wrap{justify-content:center;align-items:center;gap:8px;margin:18px 0 32px;display:flex}.progress-dot{background:var(--border-hairline);width:8px;height:8px;transition:all var(--transition-normal);border-radius:50%}.progress-dot.active{border-radius:var(--radius-pill);background:var(--text-primary);width:28px}.progress-dot.completed{background:var(--text-secondary)}.btn-primary{color:#fff;border-radius:var(--radius-pill);cursor:pointer;transition:all var(--transition-fast);background:#000;border:none;justify-content:center;align-items:center;gap:8px;padding:14px 28px;font-size:15px;font-weight:600;display:inline-flex;box-shadow:0 4px 14px #00000026}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px #00000038}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.35;cursor:not-allowed;box-shadow:none;transform:none}.btn-secondary{background:var(--bg-surface);color:var(--text-primary);border:1px solid var(--border-hairline);border-radius:var(--radius-pill);cursor:pointer;transition:all var(--transition-fast);justify-content:center;align-items:center;gap:6px;padding:10px 18px;font-size:13px;font-weight:500;display:inline-flex}.btn-secondary:hover{background:var(--bg-surface-subtle);border-color:var(--border-medium)}.segmented-control{border-radius:var(--radius-pill);background:#0000000d;padding:3px;display:inline-flex;position:relative}.segmented-option{color:var(--text-secondary);border-radius:var(--radius-pill);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;padding:6px 16px;font-size:13px;font-weight:500}.segmented-option.active{color:var(--text-primary);background:#fff;font-weight:600;box-shadow:0 2px 6px #00000014}.quality-badge{border-radius:var(--radius-pill);letter-spacing:.01em;align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:600;display:inline-flex}.quality-badge.excellent{color:#248a3d;background:#34c7591f}.quality-badge.good{color:#b36b00;background:#ff95001f}.quality-badge.low{color:#c92a2a;background:#ff3b301f}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spinner-mini{border:2px solid #00000026;border-top-color:var(--accent-blue);border-radius:50%;width:12px;height:12px;animation:.7s linear infinite spin;display:inline-block}.upload-sync-badge{border-radius:var(--radius-pill);background:var(--bg-surface-subtle);border:1px solid var(--border-hairline);color:var(--text-secondary);align-items:center;gap:5px;margin-top:8px;padding:3px 8px;font-size:11px;font-weight:500;display:inline-flex}.upload-sync-badge.completed{color:#248a3d;background:#34c75914;border-color:#34c75933}.upload-sync-badge.failed{color:#c92a2a;background:#ff3b3014;border-color:#ff3b3033}.upload-progress-track{border-radius:var(--radius-pill);background:#0000000f;width:100%;height:3px;margin-top:6px;overflow:hidden}.upload-progress-fill{background:var(--accent-blue);height:100%;transition:width .2s}.color-compare-container{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.color-card-wrapper{flex-direction:column;display:flex}.mobile-carousel-indicator{display:none}@media (max-width:768px){.color-compare-container{scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;gap:16px;margin:0 -16px;padding:6px 16px 20px;scroll-padding:0 16px;display:flex;overflow-x:auto}.color-compare-container::-webkit-scrollbar{display:none}.color-card-wrapper{scroll-snap-align:center;flex:0 0 84%}.mobile-carousel-indicator{justifyContent:center;align-items:center;gap:8px;margin-top:16px;display:flex}}