:root{--bg:#111827;--bg-card:#1f2937;--bg-surface:#374151;--text:#f9fafb;--text-muted:#9ca3af;--primary:#8b5cf6;--border:#4b5563;--radius:12px;--font:'Inter',sans-serif;--mono:'JetBrains Mono',monospace}
[data-theme="light"]{--bg:#f3f4f6;--bg-card:#ffffff;--bg-surface:#e5e7eb;--text:#111827;--text-muted:#4b5563;--border:#d1d5db}
*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh}
.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.mt-2{margin-top:0.5rem}.mt-4{margin-top:1.5rem}.mb-2{margin-bottom:0.5rem}.w-100{width:100%}.flex-bw{display:flex;justify-content:space-between;align-items:center}
.navbar{position:absolute;top:0;left:0;right:0;z-index:10;padding:1rem 0;background:rgba(17,24,39,0.3);backdrop-filter:blur(8px)}[data-theme="light"] .navbar{background:rgba(243,244,246,0.5)}.nav-inner{display:flex;justify-content:space-between;align-items:center}.brand{font-weight:700;font-size:1.3rem;color:var(--text);text-decoration:none}.brand span{color:var(--primary)}.nav-links{display:flex;gap:1.5rem;align-items:center}.nav-links a{color:var(--text);text-decoration:none;font-weight:500;transition:opacity 0.2s}.nav-links a:hover{opacity:0.8}.kofi-link{color:#ff5e5b!important}.theme-btn{background:none;border:1px solid var(--border);border-radius:50%;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text)}
.preview-area{height:50vh;min-height:350px;width:100%;transition:background 0.1s;background:#000;display:flex;align-items:center;justify-content:center}
.tools-container{position:relative;margin-top:-80px;z-index:5}.glass-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;box-shadow:0 10px 25px -5px rgba(0,0,0,0.3)}
.btn{font-family:var(--font);font-weight:600;padding:0.75rem 1.5rem;border:none;border-radius:8px;cursor:pointer;transition:all 0.2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{opacity:0.9;transform:translateY(-1px)}.btn-secondary{background:var(--bg-surface);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--primary)}.btn-sm{padding:0.4rem 0.8rem;font-size:0.85rem}
.stops-track-wrapper{padding:10px 0}.stops-track{height:24px;border-radius:12px;position:relative;cursor:crosshair;box-shadow:inset 0 0 0 1px var(--border);background-image:conic-gradient(#ccc 25%,transparent 25%,transparent 75%,#ccc 75%,#ccc),conic-gradient(#ccc 25%,transparent 25%,transparent 75%,#ccc 75%,#ccc);background-size:16px 16px;background-position:0 0,8px 8px;background-color:#fff}.gradient-preview{position:absolute;inset:0;border-radius:12px;pointer-events:none}
.stop-thumb{position:absolute;width:18px;height:28px;top:-2px;transform:translateX(-50%);background:var(--bg-card);border:2px solid var(--text);border-radius:4px;cursor:ew-resize;box-shadow:0 2px 4px rgba(0,0,0,0.5)}.stop-thumb.active{border-color:var(--primary);z-index:2;box-shadow:0 0 0 2px var(--primary)}
.color-inputs{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.color-picker-input{width:40px;height:40px;padding:0;border:none;border-radius:8px;cursor:pointer;background:none}.hex-input,.pos-input,.select-input{background:var(--bg-surface);border:1px solid var(--border);color:var(--text);padding:0.5rem;border-radius:6px;font-family:var(--mono);outline:none}.hex-input{width:100px}.pos-input{width:70px}
.toggle-group{display:flex;background:var(--bg-surface);border-radius:8px;padding:4px}.radio-label{flex:1}.radio-label input{display:none}.radio-label span{display:block;text-align:center;padding:0.4rem 1rem;border-radius:6px;cursor:pointer;font-size:0.9rem;transition:all 0.2s}.radio-label input:checked+span{background:var(--bg-card);color:var(--text);box-shadow:0 2px 4px rgba(0,0,0,0.1)}
.slider-full{width:100%;accent-color:var(--primary);cursor:pointer}
.code-box{position:relative;margin-top:0.5rem}.code-output{width:100%;height:80px;background:var(--bg-surface);border:1px solid var(--border);border-radius:8px;padding:1rem;color:var(--text);font-family:var(--mono);font-size:0.9rem;resize:none;outline:none}.tw-output{height:120px}
.footer{margin-top:4rem;border-top:1px solid var(--border);padding:2rem 0;text-align:center;font-size:0.9rem}.footer-brand span{font-weight:700}