.gradient-app{--bg-color:#0f172a;--panel-bg:#1e293b;--border-color:#334155;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent:#3b82f6;--accent-hover:#2563eb;--danger:#ef4444;--success:#10b981;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--shadow:0 10px 25px -5px rgba(0, 0, 0, 0.5);--font-family:'Inter', 'Outfit', sans-serif}.gradient-app *{box-sizing:border-box}.gradient-app{display:flex;flex-direction:column;height:85vh;background:var(--bg-color);color:var(--text-primary);font-family:var(--font-family);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}@media (min-width:1024px){.gradient-app{flex-direction:row}}.sidebar,.export-sidebar{background:var(--panel-bg);padding:24px;display:flex;flex-direction:column;gap:20px;overflow-y:auto;border-right:1px solid var(--border-color);z-index:10}.sidebar{flex:0 0 320px}.export-sidebar{flex:0 0 320px;border-right:none;border-left:1px solid var(--border-color)}@media (max-width:1023px){.sidebar,.export-sidebar{flex:none;height:auto;border:none;border-bottom:1px solid var(--border-color)}}.sidebar-title{font-size:1.25rem;font-weight:700;margin-bottom:8px}.tabs{display:flex;gap:8px;background:rgb(0 0 0 / .2);padding:4px;border-radius:var(--radius-sm)}.tab{flex:1;padding:8px;background:#fff0;border:none;color:var(--text-secondary);border-radius:4px;cursor:pointer;font-size:.85rem;font-weight:600;transition:0.2s}.tab.active{background:var(--border-color);color:var(--text-primary)}.tab:hover:not(.active){color:var(--text-primary)}.control-group{display:flex;flex-direction:column;gap:8px}.control-group label{font-size:.85rem;font-weight:500;color:var(--text-secondary)}.control-group input[type="range"]{width:100%;cursor:pointer;accent-color:var(--accent)}.pos-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.hidden{display:none!important}.mt-2{margin-top:8px}.toggle-switch{display:flex;align-items:center;gap:12px;cursor:pointer}.toggle-switch input{display:none}.slider{position:relative;width:40px;height:22px;background:var(--border-color);border-radius:20px;transition:0.3s}.slider::before{content:'';position:absolute;height:16px;width:16px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:0.3s}.toggle-switch input:checked+.slider{background:var(--accent)}.toggle-switch input:checked+.slider::before{transform:translateX(18px)}.label-text{font-size:.9rem;font-weight:500}.stops-container{display:flex;flex-direction:column;gap:8px}.color-stop{display:flex;align-items:center;gap:8px;background:rgb(0 0 0 / .2);padding:8px;border-radius:var(--radius-sm);border:1px solid var(--border-color)}.color-stop input[type="color"]{width:32px;height:32px;border:none;border-radius:4px;cursor:pointer;background:#fff0}.color-stop input[type="color"]::-webkit-color-swatch-wrapper{padding:0}.color-stop input[type="color"]::-webkit-color-swatch{border:none;border-radius:4px}.color-stop input[type="number"]{width:60px;padding:6px;background:var(--bg-color);color:var(--text-primary);border:1px solid var(--border-color);border-radius:4px;font-size:.85rem;text-align:center}.btn-remove{background:#fff0;border:none;color:var(--danger);cursor:pointer;font-size:1.2rem;margin-left:auto;padding:0 4px;opacity:.7;transition:0.2s}.btn-remove:hover{opacity:1}.btn-primary,.btn-secondary,.btn-small{border:none;border-radius:var(--radius-sm);font-weight:600;cursor:pointer;transition:0.2s;text-align:center;display:inline-flex;align-items:center;justify-content:center}.btn-primary{background:var(--accent);color:#fff;padding:12px}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:var(--border-color);color:var(--text-primary);padding:12px}.btn-secondary:hover{background:#475569}.btn-small{background:rgb(255 255 255 / .1);color:var(--text-primary);padding:4px 10px;font-size:.8rem}.btn-small:hover{background:rgb(255 255 255 / .2)}.btn-full{width:100%}.wcag-card{background:rgb(0 0 0 / .2);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:16px}.wcag-card h4{margin-bottom:12px;font-size:.95rem}.wcag-options{display:flex;gap:16px;margin-bottom:12px;font-size:.85rem}.wcag-result{display:flex;justify-content:space-between;align-items:center}.wcag-score{font-size:1.5rem;font-weight:700}.wcag-status{padding:4px 12px;border-radius:20px;font-size:.8rem;font-weight:600}.wcag-status.pass{background:rgb(16 185 129 / .2);color:var(--success)}.wcag-status.fail{background:rgb(239 68 68 / .2);color:var(--danger)}.main-preview{flex:1;position:relative;display:flex;align-items:center;justify-content:center;background-image:linear-gradient(45deg,#1e293b 25%,transparent 25%,transparent 75%,#1e293b 75%,#1e293b),linear-gradient(45deg,#1e293b 25%,transparent 25%,transparent 75%,#1e293b 75%,#1e293b);background-size:20px 20px;background-position:0 0,10px 10px;overflow:hidden}#previewCanvas{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1;pointer-events:none}.preview-glass{position:relative;z-index:2;width:60%;max-width:400px;padding:40px;background:rgb(255 255 255 / .1);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgb(255 255 255 / .2);border-radius:var(--radius-lg);color:#fff;text-align:center;box-shadow:0 25px 50px -12px rgb(0 0 0 / .25)}.preview-glass h3{font-size:1.8rem;margin-bottom:12px;font-weight:800}.preview-glass p{font-size:1rem;opacity:.9;line-height:1.5}.export-sidebar h3{font-size:.95rem;margin-bottom:8px;color:var(--text-secondary)}.code-box{position:relative;background:#0b1121;border-radius:var(--radius-sm);border:1px solid var(--border-color);overflow:hidden;margin-bottom:16px}.code-box pre{padding:16px;margin:0;overflow-x:auto;font-family:'Fira Code',monospace;font-size:.85rem;color:#a5b4fc;max-height:150px}.btn-copy{position:absolute;top:8px;right:8px;background:rgb(255 255 255 / .1);border:none;color:#fff;padding:4px 8px;border-radius:4px;cursor:pointer;font-size:.75rem;transition:0.2s}.btn-copy:hover{background:rgb(255 255 255 / .2)}.btn-group-vertical{display:flex;flex-direction:column;gap:12px;margin-top:auto}