:root{--bg-dark: #0a0c10;--panel-bg: rgba(18, 22, 31, .75);--panel-border: rgba(255, 255, 255, .1);--accent: #3b82f6;--accent-hover: #2563eb;--accent-glow: rgba(59, 130, 246, .35);--text-main: #f3f4f6;--text-muted: #9ca3af;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", monospace}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-dark);color:var(--text-main);overflow:hidden;height:100vh;width:100vw}#app{display:flex;flex-direction:column;height:100vh}.navbar{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1.5rem;background:var(--panel-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--panel-border);z-index:10}.brand{display:flex;align-items:center;gap:.75rem}.logo-icon{font-size:1.5rem}.brand-text h1{font-size:1.15rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.badge{font-family:var(--font-mono);font-size:.7rem;padding:.15rem .4rem;border-radius:4px;background:#3b82f633;color:#93c5fd;border:1px solid rgba(147,197,253,.3)}.tab-nav{display:flex;gap:.5rem}.tab-btn{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:transparent;border:1px solid transparent;border-radius:8px;color:var(--text-muted);font-family:var(--font-sans);font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease}.tab-btn:hover{color:var(--text-main);background:#ffffff0d}.tab-btn.active{color:#fff;background:var(--accent-glow);border-color:var(--accent);box-shadow:0 0 12px var(--accent-glow)}.workspace{display:flex;flex:1;position:relative;overflow:hidden;width:100%}#canvas-container{flex:1;min-width:0;position:relative;background:radial-gradient(circle at center,#111827,#030712)}#canvas-container canvas{display:block;width:100%;height:100%}.canvas-overlay{position:absolute;pointer-events:none;z-index:5}.info-badge{top:1.25rem;left:1.25rem;background:var(--panel-bg);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--panel-border);padding:.75rem 1.25rem;border-radius:12px;display:flex;flex-direction:column;gap:.2rem;box-shadow:0 8px 24px #0006}#current-stellation-name{font-weight:600;font-size:1rem;color:#f3f4f6}.sub-meta{font-size:.75rem;color:var(--text-muted);font-family:var(--font-mono)}.controls-tip{bottom:1.25rem;left:1.25rem;font-size:.75rem;color:var(--text-muted);background:#00000080;padding:.4rem .8rem;border-radius:6px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.sidebar{width:360px;min-width:360px;max-width:360px;flex-shrink:0;background:var(--panel-bg);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-left:1px solid var(--panel-border);padding:1.5rem;overflow-y:auto;overflow-x:hidden;z-index:5;display:flex;flex-direction:column;box-sizing:border-box}.tab-content{display:none;flex-direction:column;gap:1.25rem;width:100%}.tab-content.active{display:flex}.tab-content h2{font-size:1.1rem;font-weight:600;color:#fff}.section-desc{font-size:.8rem;color:var(--text-muted);line-height:1.4}.control-group{display:flex;flex-direction:column;gap:.4rem;width:100%;min-width:0}.control-group label{font-size:.8rem;font-weight:500;color:#d1d5db}.custom-select{background:#1f2937;color:#f3f4f6;border:1px solid var(--panel-border);padding:.55rem .75rem;border-radius:8px;font-family:var(--font-sans);font-size:.85rem;outline:none;cursor:pointer;transition:border-color .2s ease;width:100%;max-width:100%;min-width:0;text-overflow:ellipsis;overflow:hidden;white-space:nowrap}.custom-select:focus{border-color:var(--accent)}.checkbox-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.4rem;background:#0003;padding:.6rem;border-radius:8px;border:1px solid var(--panel-border)}.select-with-arrows{display:flex;align-items:center;gap:.4rem;width:100%;min-width:0}.select-with-arrows .custom-select{flex:1 1 0%;min-width:0}.arrow-btn{display:inline-flex;align-items:center;justify-content:center;width:32px;height:34px;background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:6px;color:var(--text-main);font-size:.75rem;cursor:pointer;transition:all .15s ease;-webkit-user-select:none;user-select:none;flex-shrink:0}.arrow-btn:hover{background:#ffffff1f;border-color:var(--accent);color:#fff;box-shadow:0 0 8px var(--accent-glow)}.arrow-btn:active{transform:scale(.94)}.checkbox-item{display:flex;align-items:center;gap:.35rem;font-size:.75rem;font-family:var(--font-mono);color:#d1d5db;cursor:pointer}.color-picker{-webkit-appearance:none;border:none;width:100%;height:38px;border-radius:8px;cursor:pointer;background:transparent}.color-picker::-webkit-color-swatch-wrapper{padding:0}.color-picker::-webkit-color-swatch{border:1px solid var(--panel-border);border-radius:8px}.slider{-webkit-appearance:none;width:100%;height:6px;border-radius:3px;background:#374151;outline:none;cursor:pointer}.slider::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer;transition:transform .15s ease}.slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.toggle-group{flex-direction:row;justify-content:space-between;align-items:center}.toggle-switch{width:36px;height:20px;cursor:pointer}.nav-actions{display:flex;align-items:center}.repo-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.4rem .8rem;background:#ffffff0f;border:1px solid var(--panel-border);border-radius:6px;color:var(--text-main);text-decoration:none;font-size:.85rem;font-weight:500;transition:all .2s ease}.repo-btn:hover{background:#ffffff1f;border-color:var(--accent);color:#fff;box-shadow:0 0 12px var(--accent-glow)}.repo-icon{fill:currentColor}