@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#1DB954;--primary-glow:rgba(29,185,84,.25);
  --bg:#0A0A0A;--bg2:#161616;--bg-card:rgba(22,22,22,.8);
  --text:#F1F5F9;--text2:#94A3B8;--text3:#64748B;
  --border:rgba(148,163,184,.1);--radius:14px;--radius-sm:10px;
  --font:'Inter',system-ui,sans-serif;--tr:.25s ease;
}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse at 30% 0%,rgba(29,185,84,.06) 0%,transparent 40%);pointer-events:none}
.app{position:relative;z-index:1;max-width:1100px;margin:0 auto;padding:24px 20px 60px}
.hdr{text-align:center;padding:40px 0 24px}
.hdr__icon{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:var(--radius);background:linear-gradient(135deg,#1DB954,#6366F1);font-size:32px;margin-bottom:16px;box-shadow:0 8px 30px var(--primary-glow);animation:fl 3s ease-in-out infinite}
@keyframes fl{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
.hdr h1{font-size:2rem;font-weight:800;background:linear-gradient(135deg,var(--text),var(--primary));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hdr p{color:var(--text2);font-size:.95rem;max-width:420px;margin:8px auto 0}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;backdrop-filter:blur(16px);margin-bottom:20px}
.controls-row{display:flex;gap:16px;flex-wrap:wrap;align-items:flex-end}
.control-group{display:flex;flex-direction:column;gap:6px;min-width:120px}
.control-group label{font-size:.78rem;font-weight:600;color:var(--text2)}
.select{padding:10px 14px;font-family:var(--font);font-size:.85rem;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);outline:none}
.select:focus{border-color:var(--primary)}
.color-pick{display:flex;align-items:center;gap:8px}
.color-pick input[type="color"]{width:44px;height:36px;border:1px solid var(--border);border-radius:var(--radius-sm);background:none;cursor:pointer;padding:2px}
.hex-label{font-size:.78rem;font-family:monospace;color:var(--text3)}
.slider{-webkit-appearance:none;width:100%;height:6px;background:var(--bg);border-radius:3px;outline:none}
.slider::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;box-shadow:0 2px 8px var(--primary-glow)}
/* Presets */
.presets{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.preset-btn{display:flex;align-items:center;gap:6px;padding:8px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:100px;font-family:var(--font);font-size:.78rem;color:var(--text2);cursor:pointer;transition:var(--tr);backdrop-filter:blur(8px)}
.preset-btn:hover{border-color:var(--primary);color:var(--text)}
.preset-btn.active{border-color:var(--primary);background:rgba(29,185,84,.1);color:var(--primary)}
.preset-swatch{width:20px;height:12px;border-radius:3px;flex-shrink:0}
/* Drop zone */
.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:48px 24px;text-align:center;cursor:pointer;transition:var(--tr);background:var(--bg-card);backdrop-filter:blur(16px);margin-bottom:20px}
.drop-zone:hover,.drop-zone.dragover{border-color:var(--primary);background:rgba(29,185,84,.04)}
.drop-zone__icon{font-size:2.5rem;margin-bottom:12px}
.drop-zone__text{font-size:1rem;color:var(--text2);margin-bottom:4px}
.drop-zone__hint{font-size:.82rem;color:var(--text3)}
/* Buttons */
.btn{padding:10px 18px;font-family:var(--font);font-size:.85rem;font-weight:600;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:var(--tr)}
.btn-primary{background:var(--primary);color:#000}.btn-primary:hover{background:#16A34A}
.btn-green{background:#22C55E;color:#fff}
.btn-outline{background:transparent;color:var(--text2);border:1px solid var(--border)}.btn-outline:hover{border-color:#EF4444;color:#EF4444}
.btn-sm{padding:6px 12px;font-size:.78rem}
.batch-bar{display:flex;gap:10px;align-items:center;margin-bottom:20px;flex-wrap:wrap;font-size:.88rem;color:var(--text2)}
/* Image grid */
.image-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px}
.img-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;backdrop-filter:blur(16px);transition:var(--tr)}
.img-card:hover{box-shadow:0 4px 20px rgba(0,0,0,.3)}
.img-card__preview{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border)}
.img-card__preview img,.img-card__preview canvas{width:100%;display:block;aspect-ratio:auto}
.img-card__label{font-size:.65rem;font-weight:700;text-transform:uppercase;text-align:center;padding:2px;color:var(--text3);background:var(--bg2)}
.img-card__info{padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.img-card__name{font-size:.82rem;font-weight:600;word-break:break-all}
.img-card__meta{font-size:.75rem;color:var(--text3)}
.img-card__actions{display:flex;gap:6px}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(80px);padding:10px 20px;background:var(--bg2);border:1px solid var(--primary);border-radius:var(--radius-sm);color:var(--text);font-size:.85rem;font-weight:500;z-index:1000;opacity:0;transition:all .3s ease;pointer-events:none}
.toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}
@media(max-width:640px){.controls-row{flex-direction:column}.image-grid{grid-template-columns:1fr}.app{padding:16px 12px 48px}.hdr h1{font-size:1.5rem}}
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--bg2);border-radius:3px}
::selection{background:var(--primary);color:var(--bg)}