@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;700;900&family=DM+Mono:wght@400;500&display=swap');
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#08111e;--surface:#131c30;--surface-alt:#1c2741;
  --border:#1f2e4a;--border-light:#2a3a5a;
  --text:#d4dceb;--text-dim:#7d8ba2;
  --accent:#3aaeff;--accent-dim:rgba(58,174,255,0.12);--accent-glow:rgba(58,174,255,0.25);
  --tag:#6cc7ff;--tag-dim:rgba(108,199,255,0.14);
}
body{font-family:'DM Sans',sans-serif;background:var(--bg);color:var(--text);align-items:center}
.tool-hero{text-align:center;padding:48px 20px 20px}
.tool-hero h1{font-size:clamp(1.6rem,4.5vw,2.4rem);font-weight:900;letter-spacing:-0.03em}
.tool-hero h1 span{color:var(--accent)}
.tool-hero p{margin-top:8px;color:var(--text-dim);font-size:0.9rem;font-weight:300;line-height:1.7}
.container{width:100%;max-width:720px;padding:0 16px 80px}

.drop-zone{border:1px solid var(--border);border-radius:10px;padding:48px 24px;text-align:center;cursor:pointer;transition:all .2s;background:var(--surface)}
.drop-zone:hover,.drop-zone.dragover{border-color:var(--accent);background:var(--accent-dim)}
.drop-zone-icon{font-size:2.4rem;margin-bottom:12px;display:block}
.drop-zone-text{font-size:0.9rem;color:var(--text-dim);line-height:1.8}
.drop-zone-text strong{color:var(--accent)}
.drop-zone-hint{font-size:0.75rem;color:var(--text-dim);margin-top:6px;opacity:0.6}
#fileInput{display:none}

.preview-section{display:none;margin-top:20px;animation:fadeUp .3s ease}
.preview-section.show{display:block}

.source-preview{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:20px;display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.source-img{width:96px;height:96px;border-radius:8px;object-fit:contain;background:var(--surface-alt);border:1px solid var(--border)}
.source-info{flex:1;min-width:0}
.source-name{font-weight:700;font-size:0.9rem;word-break:break-all;margin-bottom:4px}
.source-meta{font-size:0.78rem;color:var(--text-dim);font-family:'DM Mono',monospace}
.change-btn{padding:8px 16px;border:1px solid var(--border);border-radius:6px;background:transparent;color:var(--text-dim);font-family:inherit;font-size:0.78rem;cursor:pointer;transition:all .2s;white-space:nowrap}
.change-btn:hover{border-color:var(--text-dim);color:var(--text)}

.options{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:16px 20px;margin-top:12px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.option-label{font-size:0.82rem;color:var(--text-dim);font-weight:500}
.shape-btns{display:flex;gap:6px}
.shape-btn{padding:6px 14px;border:1px solid var(--border);border-radius:6px;background:var(--surface-alt);color:var(--text-dim);font-family:inherit;font-size:0.78rem;cursor:pointer;transition:all .2s}
.shape-btn:hover{border-color:var(--accent);color:var(--text)}
.shape-btn.active{border-color:var(--accent);background:var(--accent-dim);color:var(--accent)}

.output-title{font-size:0.78rem;font-weight:700;color:var(--text-dim);text-transform:uppercase;letter-spacing:0.08em;margin:20px 0 10px}
.output-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px}
.output-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:14px;text-align:center;transition:border-color .2s}
.output-card:hover{border-color:var(--border-light)}
.output-canvas-wrap{
  width:64px;height:64px;margin:0 auto 8px;display:flex;align-items:center;justify-content:center;
  background-color:#fff;
  background-image:linear-gradient(45deg,#e0e0e0 25%,transparent 25%,transparent 75%,#e0e0e0 75%),linear-gradient(45deg,#e0e0e0 25%,transparent 25%,transparent 75%,#e0e0e0 75%);
  background-size:8px 8px;background-position:0 0,4px 4px;
  border-radius:4px;
}
.output-canvas-wrap canvas{display:block;image-rendering:pixelated}
.output-label{font-family:'DM Mono',monospace;font-size:0.72rem;color:var(--text-dim)}
.output-tag{display:inline-block;font-size:0.62rem;padding:2px 6px;border-radius:3px;margin-top:4px;font-weight:500}
.tag-ico{background:var(--accent-dim);color:var(--accent)}
.tag-png{background:var(--tag-dim);color:var(--tag)}
.tag-apple{background:rgba(255,149,0,0.12);color:#ff9500}
.tag-pwa{background:rgba(168,85,247,0.12);color:#a855f7}

.gen-btn{width:100%;margin-top:16px;padding:16px;border:none;border-radius:10px;background:var(--accent);color:#000;font-family:inherit;font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s;letter-spacing:-0.01em}
.gen-btn:hover{opacity:0.9;transform:translateY(-1px);box-shadow:0 4px 20px var(--accent-glow)}
.gen-btn:disabled{opacity:0.4;cursor:not-allowed;transform:none!important;box-shadow:none!important}

.code-section{display:none;margin-top:16px;animation:fadeUp .3s ease}
.code-section.show{display:block}
.code-title{font-size:0.78rem;font-weight:700;color:var(--text-dim);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:8px}
.code-block{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:14px 16px;font-family:'DM Mono',monospace;font-size:0.75rem;line-height:1.7;color:var(--text-dim);overflow-x:auto;position:relative}
.code-block span{color:var(--accent)}
.copy-btn{position:absolute;top:8px;right:8px;padding:4px 10px;border:1px solid var(--border);border-radius:4px;background:var(--surface-alt);color:var(--text-dim);font-family:inherit;font-size:0.68rem;cursor:pointer;transition:all .2s}
.copy-btn:hover{border-color:var(--accent);color:var(--accent)}

.error-msg{display:none;background:rgba(239,68,68,0.1);border:1px solid #ef4444;border-radius:8px;padding:14px 18px;margin-top:12px;color:#ef4444;font-size:0.85rem;text-align:center}
.error-msg.show{display:block;animation:fadeUp .3s ease}

.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:8px;margin-top:32px}
.feature{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:14px 12px;text-align:center;cursor:pointer;transition:all .2s}
.feature:hover{border-color:var(--accent);transform:translateY(-2px)}
.feature-icon{font-size:1.1rem;margin-bottom:4px;display:block}
.feature-text{font-size:0.7rem;color:var(--text-dim);line-height:1.5}

.modal-overlay{display:none;position:fixed;inset:0;z-index:1000;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);background:rgba(0,0,0,0.65);align-items:center;justify-content:center;padding:20px;animation:modalFadeIn .25s ease}
.modal-overlay.show{display:flex}
.modal{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:32px 28px;max-width:440px;width:100%;position:relative;animation:modalSlideUp .3s ease}
.modal-icon{font-size:2rem;margin-bottom:12px;display:block}
.modal-title{font-size:1.1rem;font-weight:700;margin-bottom:10px}
.modal-body{font-size:0.88rem;color:var(--text-dim);line-height:1.8}
.modal-close{position:absolute;top:12px;right:14px;width:32px;height:32px;border:1px solid var(--border);border-radius:6px;background:var(--surface-alt);color:var(--text-dim);font-size:1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;font-family:inherit;line-height:1}
.modal-close:hover{border-color:var(--text-dim);color:var(--text)}
@keyframes modalFadeIn{from{opacity:0}to{opacity:1}}
@keyframes modalSlideUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:500px){
  .source-preview{flex-direction:column;text-align:center}
  .output-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr))}
  .options{flex-direction:column;align-items:flex-start}
}