:root{--bg-dark:#0a0a0c;--sidebar-bg:#141417;--accent:#6366f1;--accent-hover:#4f46e5;--text-primary:#fff;--text-secondary:#a1a1aa;--border:#27272a;--card-bg:#1c1c21}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);color:var(--text-primary);height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden}.app-container{height:100vh;display:flex}.sidebar{background-color:var(--sidebar-bg);border-right:1px solid var(--border);flex-direction:column;width:380px;padding:24px;display:flex;overflow-y:auto}.brand{align-items:center;gap:12px;margin-bottom:32px;display:flex}.logo-icon{width:32px;height:32px;color:var(--accent)}.brand h1{letter-spacing:-.5px;font-size:20px;font-weight:700}.control-group{margin-bottom:24px}.control-group label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;font-size:12px;font-weight:600;display:block}textarea{background:var(--bg-dark);border:1px solid var(--border);width:100%;color:var(--text-primary);resize:none;border-radius:12px;padding:12px;font-size:14px;transition:border-color .2s}textarea:focus{border-color:var(--accent);outline:none}.ratio-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.ratio-grid button{background:var(--bg-dark);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;border-radius:8px;padding:10px;font-size:13px;transition:all .2s}.ratio-grid button.active{border-color:var(--accent);color:var(--accent);background:#6366f11a}.generate-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:12px;width:100%;margin-top:auto;padding:16px;font-size:16px;font-weight:600;transition:background .2s,transform .1s}.generate-btn:hover:not(:disabled){background:var(--accent-hover)}.generate-btn:active:not(:disabled){transform:scale(.98)}.generate-btn:disabled{opacity:.5;cursor:not-allowed}.main-content{background-color:var(--bg-dark);flex:1;justify-content:center;align-items:center;padding:40px;display:flex;position:relative}.welcome-screen{text-align:center}.welcome-content h2{background:linear-gradient(90deg,#fff,#a1a1aa);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:12px;font-size:32px}.welcome-content p{color:var(--text-secondary);font-size:16px}.gallery-container{justify-content:center;align-items:center;width:100%;height:100%;padding:20px;display:flex;overflow-y:auto}.image-grid,.skeleton-grid{gap:20px;width:100%;max-width:1200px;display:grid}.ratio-4-3 .image-card,.ratio-4-3 .skeleton-card{aspect-ratio:4/3}.ratio-3-4 .image-card,.ratio-3-4 .skeleton-card{aspect-ratio:3/4}.ratio-16-9 .image-card,.ratio-16-9 .skeleton-card{aspect-ratio:16/9}.ratio-9-16 .image-card,.ratio-9-16 .skeleton-card{aspect-ratio:9/16}.ratio-1-1 .image-card,.ratio-1-1 .skeleton-card{aspect-ratio:1}.image-card{background:var(--card-bg);border-radius:16px;position:relative;overflow:hidden;box-shadow:0 10px 30px #00000080}.image-card img{object-fit:cover;width:100%;height:100%;transition:transform .5s}.image-card:hover img{transform:scale(1.05)}.image-overlay{opacity:0;background:linear-gradient(#0000,#0009);justify-content:flex-end;align-items:flex-end;padding:20px;transition:opacity .3s;display:flex;position:absolute;inset:0}.image-card:hover .image-overlay{opacity:1}.icon-btn{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#fff;cursor:pointer;background:#fff3;border:none;border-radius:10px;justify-content:center;align-items:center;width:40px;height:40px;transition:background .2s;display:flex}.icon-btn:hover{background:#ffffff4d}.icon-btn svg{width:20px;height:20px}.skeleton-card{background:var(--card-bg);border-radius:16px;position:relative;overflow:hidden}.shimmer{background:linear-gradient(90deg,#0000 0%,#ffffff0d 50%,#0000 100%);animation:1.5s infinite shimmer;position:absolute;inset:0}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}