:root{--font-main: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", monospace;--bg-body: #07090e;--bg-card: rgba(16, 23, 38, .75);--bg-card-hover: rgba(22, 32, 54, .85);--bg-input: #0b1120;--bg-chip: #1e293b;--border-subtle: rgba(255, 255, 255, .08);--border-active: rgba(56, 189, 248, .5);--border-focus: #38bdf8;--accent-cyan: #38bdf8;--accent-blue: #3b82f6;--accent-indigo: #6366f1;--accent-purple: #a855f7;--accent-green: #10b981;--glow-cyan: rgba(56, 189, 248, .25);--glow-blue: rgba(59, 130, 246, .25);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-pill: 9999px;--transition-fast: .15s ease;--transition-normal: .25s cubic-bezier(.4, 0, .2, 1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background-color:var(--bg-body);color:var(--text-primary);min-height:100vh;line-height:1.5;-webkit-font-smoothing:antialiased;background-image:radial-gradient(circle at 15% 20%,rgba(56,189,248,.08) 0%,transparent 40%),radial-gradient(circle at 85% 75%,rgba(99,102,241,.08) 0%,transparent 40%),linear-gradient(to bottom,#07090e,#0c111d);background-attachment:fixed}.app-container{max-width:1200px;margin:0 auto;padding:24px 20px 60px;display:flex;flex-direction:column;gap:36px}.app-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:20px;border-bottom:1px solid var(--border-subtle);flex-wrap:wrap;gap:16px}.brand-wrapper{display:flex;align-items:center;gap:14px}.brand-logo-badge{width:46px;height:46px;border-radius:var(--radius-md);background:linear-gradient(135deg,#38bdf833,#6366f133);border:1px solid var(--border-active);display:flex;align-items:center;justify-content:center;color:var(--accent-cyan);box-shadow:0 0 20px var(--glow-cyan)}.brand-info h1{font-size:1.6rem;font-weight:800;letter-spacing:-.5px;line-height:1.1;background:linear-gradient(135deg,#ffffff 40%,var(--accent-cyan) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.brand-info .by-koven{font-size:.78rem;font-weight:600;letter-spacing:.8px;text-transform:uppercase;color:var(--accent-cyan)}.header-badges{display:flex;align-items:center;gap:10px}.status-badge{display:inline-flex;align-items:center;gap:8px;background:#10b9811a;color:#34d399;border:1px solid rgba(16,185,129,.25);font-size:.75rem;font-weight:600;padding:6px 14px;border-radius:var(--radius-pill)}.status-dot{width:7px;height:7px;border-radius:50%;background-color:#34d399;box-shadow:0 0 8px #34d399;animation:pulse-dot 2s infinite ease-in-out}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.85)}}.hero-intro{text-align:center;max-width:680px;margin:0 auto}.hero-intro h2{font-size:2.2rem;font-weight:800;line-height:1.2;letter-spacing:-.02em;margin-bottom:12px}.hero-intro h2 .gradient-text{background:linear-gradient(135deg,var(--accent-cyan) 0%,var(--accent-indigo) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-intro p{color:var(--text-secondary);font-size:1.05rem}.studio-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start}.studio-card{background:var(--bg-card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:28px;box-shadow:0 10px 35px #00000059;display:flex;flex-direction:column;gap:24px}.card-title-row{display:flex;align-items:center;gap:10px;color:var(--text-primary);font-weight:700;font-size:1.15rem;border-bottom:1px solid var(--border-subtle);padding-bottom:14px}.card-title-row svg{color:var(--accent-cyan)}.tabs-switcher{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;background:var(--bg-input);padding:5px;border-radius:var(--radius-md);border:1px solid var(--border-subtle)}.tab-btn{display:flex;align-items:center;justify-content:center;gap:8px;background:transparent;color:var(--text-secondary);border:none;padding:10px 8px;border-radius:var(--radius-sm);font-family:inherit;font-size:.84rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.tab-btn:hover{color:var(--text-primary);background:#ffffff0a}.tab-btn.active{background:linear-gradient(135deg,#38bdf826,#6366f133);color:var(--accent-cyan);border:1px solid var(--border-active);box-shadow:0 2px 10px #0003}.form-section{display:flex;flex-direction:column;gap:16px}.form-group{display:flex;flex-direction:column;gap:8px}.form-label{display:flex;justify-content:space-between;align-items:center;font-size:.86rem;font-weight:600;color:var(--text-secondary)}.form-helper{font-size:.75rem;color:var(--text-muted)}.text-input,.text-area,.select-input{width:100%;background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:12px 16px;color:var(--text-primary);font-family:inherit;font-size:.95rem;transition:border-color var(--transition-fast),box-shadow var(--transition-fast);outline:none}.text-input:focus,.text-area:focus,.select-input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--glow-cyan)}.text-area{resize:vertical;min-height:90px}.customization-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.color-picker-box{background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:12px;display:flex;align-items:center;gap:12px}.color-input-native{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:38px;height:38px;background:none;border:none;cursor:pointer;border-radius:8px;overflow:hidden}.color-input-native::-webkit-color-swatch-wrapper{padding:0}.color-input-native::-webkit-color-swatch{border:1px solid rgba(255,255,255,.2);border-radius:6px}.hex-text-input{background:transparent;border:none;font-family:var(--font-mono);font-size:.9rem;color:var(--text-primary);text-transform:uppercase;outline:none;width:90px}.hex-text-input:focus{color:var(--accent-cyan)}.color-text-val{font-family:var(--font-mono);font-size:.85rem;color:var(--text-primary);text-transform:uppercase}.field-hint{font-size:.76rem;color:var(--text-muted);line-height:1.4;margin-top:-2px}.field-hint strong{color:var(--accent-cyan)}.resolution-pills-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}.res-pill{background:var(--bg-input);border:1px solid var(--border-subtle);color:var(--text-secondary);font-size:.75rem;font-weight:600;padding:6px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);font-family:inherit}.res-pill:hover{color:var(--text-primary);border-color:var(--border-active)}.res-pill.active{background:#38bdf826;color:var(--accent-cyan);border-color:var(--accent-cyan)}.contrast-warning-banner{display:flex;align-items:flex-start;gap:12px;background:#eab3081f;border:1px solid rgba(234,179,8,.4);color:#fde047;padding:12px 16px;border-radius:var(--radius-md);text-align:left;font-size:.82rem;line-height:1.4}.contrast-warning-banner svg{flex-shrink:0;margin-top:2px;color:#eab308}.contrast-warning-banner strong{display:block;font-size:.85rem;margin-bottom:2px;color:#fef08a}.contrast-warning-banner p{color:#fef9c3;font-size:.8rem;margin:0}.preview-meta-info{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:-6px}.meta-badge{font-size:.74rem;font-weight:500;background:var(--bg-input);border:1px solid var(--border-subtle);color:var(--text-muted);padding:4px 10px;border-radius:var(--radius-pill)}.mobile-jump-pill{display:none;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,#38bdf826,#6366f126);border:1px solid var(--border-active);color:var(--accent-cyan);text-decoration:none;padding:10px 16px;border-radius:var(--radius-pill);font-size:.82rem;font-weight:600;transition:all var(--transition-fast);margin-bottom:8px}.mobile-jump-pill:hover{background:#38bdf840}.slider-control{display:flex;align-items:center;gap:14px}.slider-input{flex:1;accent-color:var(--accent-cyan);height:6px;background:var(--bg-input);border-radius:4px;cursor:pointer}.slider-val-badge{font-family:var(--font-mono);font-size:.8rem;color:var(--accent-cyan);background:#38bdf81a;padding:4px 8px;border-radius:6px;min-width:54px;text-align:center}.checkbox-label{display:flex;align-items:center;gap:10px;font-size:.88rem;color:var(--text-secondary);cursor:pointer;-webkit-user-select:none;user-select:none}.checkbox-input{width:18px;height:18px;accent-color:var(--accent-cyan);cursor:pointer}.presets-row{display:flex;gap:8px;flex-wrap:wrap}.preset-chip{background:var(--bg-chip);border:1px solid var(--border-subtle);color:var(--text-secondary);font-size:.75rem;font-weight:500;padding:4px 10px;border-radius:var(--radius-pill);cursor:pointer;transition:all var(--transition-fast)}.preset-chip:hover{color:var(--text-primary);border-color:var(--border-active)}.preview-card{position:sticky;top:24px;align-items:center;text-align:center}.qr-stage{padding:24px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;min-height:280px;width:100%;border:2px dashed rgba(255,255,255,.1);transition:all var(--transition-normal);background:radial-gradient(circle at center,rgba(56,189,248,.05) 0%,transparent 70%)}.qr-canvas-wrapper{padding:16px;border-radius:12px;box-shadow:0 10px 30px #00000080;display:inline-flex;transition:transform var(--transition-normal)}.qr-canvas-wrapper:hover{transform:scale(1.02)}.qr-canvas-wrapper canvas{display:block;max-width:100%;height:auto!important;border-radius:4px}.empty-state{display:flex;flex-direction:column;align-items:center;gap:12px;color:var(--text-muted);max-width:240px}.empty-state svg{color:var(--text-muted);opacity:.5}.empty-state p{font-size:.88rem}.action-buttons{display:flex;flex-direction:column;gap:12px;width:100%}.btn-primary{display:flex;align-items:center;justify-content:center;gap:10px;background:linear-gradient(135deg,#0284c7,#2563eb);color:#fff;border:1px solid rgba(255,255,255,.2);padding:14px 24px;border-radius:var(--radius-md);font-family:inherit;font-size:.95rem;font-weight:700;cursor:pointer;transition:all var(--transition-normal);box-shadow:0 4px 18px #2563eb59;text-decoration:none}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 24px #2563eb80;background:linear-gradient(135deg,#0369a1,#1d4ed8)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;filter:grayscale(.6)}.btn-secondary{display:flex;align-items:center;justify-content:center;gap:8px;background:var(--bg-input);color:var(--text-secondary);border:1px solid var(--border-subtle);padding:12px 20px;border-radius:var(--radius-md);font-family:inherit;font-size:.88rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.btn-secondary:hover:not(:disabled){color:var(--text-primary);border-color:var(--border-active);background:#ffffff0d}.btn-secondary:disabled{opacity:.5;cursor:not-allowed}.toast-msg{display:inline-flex;align-items:center;gap:8px;background:#10b98133;border:1px solid var(--accent-green);color:#6ee7b7;font-size:.82rem;font-weight:600;padding:8px 16px;border-radius:var(--radius-pill);animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature-box{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:24px;display:flex;flex-direction:column;gap:10px;transition:transform var(--transition-normal),border-color var(--transition-normal)}.feature-box:hover{transform:translateY(-4px);border-color:#38bdf84d}.feature-icon-wrapper{width:42px;height:42px;border-radius:10px;background:#38bdf81a;color:var(--accent-cyan);display:flex;align-items:center;justify-content:center}.feature-box h3{font-size:1.05rem;font-weight:700}.feature-box p{font-size:.88rem;color:var(--text-secondary);line-height:1.45}.app-footer{border-top:1px solid var(--border-subtle);padding-top:28px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;color:var(--text-muted);font-size:.85rem}.footer-brand{display:flex;align-items:center;gap:8px}.footer-brand strong{color:var(--text-primary)}.footer-vercel{display:inline-flex;align-items:center;gap:6px;background:#ffffff0d;border:1px solid var(--border-subtle);padding:4px 12px;border-radius:var(--radius-pill);font-size:.78rem;color:var(--text-secondary)}@media(max-width:900px){.mobile-jump-pill{display:inline-flex}.studio-layout{grid-template-columns:1fr}.preview-card{position:static}.features-grid{grid-template-columns:1fr}.tabs-switcher{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.app-container{padding:16px 12px 40px;gap:24px}.studio-card{padding:18px}.customization-grid{grid-template-columns:1fr}.hero-intro h2{font-size:1.6rem}.app-header{flex-direction:column;align-items:flex-start}}