*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #6366f1;--primary-dark: #4f46e5;--secondary: #8b5cf6;--bg: #0f172a;--bg-card: #1e293b;--bg-input: #334155;--text: #f1f5f9;--text-muted: #94a3b8;--border: #334155;--success: #10b981;--error: #ef4444;--shadow: rgba(0, 0, 0, .3)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}.app{min-height:100vh;padding-bottom:2rem}.header{background:var(--bg-card);padding:1.5rem 1rem;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;box-shadow:0 4px 6px var(--shadow)}.header h1{font-size:1.5rem;margin-bottom:1rem;text-align:center}.nav{display:flex;gap:.5rem;justify-content:center}.nav button{flex:1;max-width:200px;padding:.75rem 1.5rem;background:var(--bg-input);color:var(--text);border:2px solid transparent;border-radius:.5rem;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;-webkit-tap-highlight-color:transparent}.nav button.active{background:var(--primary);border-color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px #6366f166}.nav button:active{transform:translateY(0)}.create-view,.gallery-view{max-width:800px;margin:0 auto;padding:1.5rem 1rem}.input-group{margin-bottom:1.5rem}.input-group label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--text-muted);font-size:.9rem;text-transform:uppercase;letter-spacing:.05em}.url-input,.select-input,input[type=text],textarea{width:100%;padding:1rem;background:var(--bg-input);color:var(--text);border:2px solid var(--border);border-radius:.5rem;font-size:1rem;transition:all .2s;-webkit-appearance:none}.url-input:focus,.select-input:focus,input[type=text]:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #6366f11a}textarea{resize:vertical;font-family:Courier New,monospace}.mockup-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem}@media (min-width: 640px){.mockup-grid{grid-template-columns:repeat(4,1fr)}}.mockup-card{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:1.25rem .75rem;background:var(--bg-input);border:3px solid transparent;border-radius:.75rem;cursor:pointer;transition:all .2s;-webkit-tap-highlight-color:transparent;min-height:100px}.mockup-card .icon{font-size:2rem}.mockup-card .name{font-size:.85rem;font-weight:600;text-align:center;line-height:1.3}.mockup-card.selected{background:var(--primary);border-color:var(--primary-dark);transform:scale(1.05);box-shadow:0 4px 12px #6366f166}.mockup-card:active{transform:scale(.98)}.advanced{background:var(--bg-card);border:1px solid var(--border);border-radius:.5rem;padding:1rem;margin-bottom:1.5rem}.advanced summary{cursor:pointer;font-weight:600;padding:.5rem;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.advanced[open] summary{margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.create-btn{width:100%;padding:1.25rem;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);color:#fff;border:none;border-radius:.75rem;font-size:1.125rem;font-weight:700;cursor:pointer;transition:all .3s;box-shadow:0 4px 12px #6366f14d;-webkit-tap-highlight-color:transparent}.create-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 16px #6366f166}.create-btn:active:not(:disabled){transform:translateY(0)}.create-btn:disabled{opacity:.6;cursor:not-allowed}.error{background:var(--error);color:#fff;padding:1rem;border-radius:.5rem;margin-bottom:1rem;text-align:center;font-weight:600}.result{margin-top:2rem;padding:1.5rem;background:var(--bg-card);border-radius:.75rem;border:1px solid var(--border)}.result h3{color:var(--success);margin-bottom:1rem;text-align:center}.result img{width:100%;border-radius:.5rem;margin-bottom:1rem;box-shadow:0 4px 12px var(--shadow)}.download-btn{display:block;width:100%;padding:1rem;background:var(--success);color:#fff;text-align:center;text-decoration:none;border-radius:.5rem;font-weight:600;font-size:1rem;transition:all .2s;-webkit-tap-highlight-color:transparent}.download-btn:active{transform:scale(.98)}.empty-state{text-align:center;padding:3rem 1rem;color:var(--text-muted)}.empty-state p{font-size:1.5rem;margin-bottom:1.5rem}.empty-state button{padding:1rem 2rem;background:var(--primary);color:#fff;border:none;border-radius:.5rem;font-size:1rem;font-weight:600;cursor:pointer;-webkit-tap-highlight-color:transparent}.gallery-grid{display:grid;grid-template-columns:1fr;gap:1.5rem}@media (min-width: 640px){.gallery-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1024px){.gallery-grid{grid-template-columns:repeat(3,1fr)}}.gallery-item{background:var(--bg-card);border-radius:.75rem;overflow:hidden;border:1px solid var(--border);transition:all .2s}.gallery-item:active{transform:scale(.98)}.gallery-item img{width:100%;aspect-ratio:16 / 9;object-fit:cover;display:block}.gallery-actions{display:flex;gap:.5rem;padding:.75rem;background:var(--bg-input)}.btn-small{flex:1;padding:.75rem;background:var(--primary);color:#fff;border:none;border-radius:.375rem;font-size:1.25rem;cursor:pointer;text-decoration:none;display:flex;align-items:center;justify-content:center;transition:all .2s;-webkit-tap-highlight-color:transparent}.btn-small:active{transform:scale(.95)}.btn-danger{background:var(--error)}.gallery-info{padding:.75rem;text-align:center;font-size:.85rem;color:var(--text-muted)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.create-btn:disabled{animation:pulse 2s ease-in-out infinite}html{scroll-behavior:smooth}@media (hover: none) and (pointer: coarse){button,.mockup-card,.gallery-item{transition:transform .1s}button:active,.mockup-card:active,.gallery-item:active{transform:scale(.97)}}