@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');
*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#0a0a0f;--bg2:#12121a;--card:rgba(255,255,255,0.03);--border:rgba(255,255,255,0.06);--bhover:rgba(255,255,255,0.12);--t1:#e8e8ed;--t2:#8888a0;--t3:#555570;--a1:#6c5ce7;--a2:#00cec9;--a3:#fd79a8;--g1:rgba(108,92,231,0.15);--r:12px;--rs:8px}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,sans-serif;background:var(--bg);color:var(--t1);line-height:1.6;overflow-x:hidden}
.bg-grid{position:fixed;inset:0;background-image:linear-gradient(rgba(255,255,255,0.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.02) 1px,transparent 1px);background-size:60px 60px;pointer-events:none;z-index:0}
.bg-glow{position:fixed;width:600px;height:600px;border-radius:50%;filter:blur(150px);opacity:0.3;pointer-events:none;z-index:0}
.bg-glow-1{top:-200px;left:-100px;background:var(--a1)}
.bg-glow-2{bottom:-200px;right:-100px;background:var(--a2)}
nav{position:fixed;top:0;width:100%;z-index:100;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;backdrop-filter:blur(20px);background:rgba(10,10,15,0.7);border-bottom:1px solid var(--border)}
.logo{font-size:1.25rem;font-weight:700;letter-spacing:-0.5px}
.logo span{color:var(--a2)}
nav ul{list-style:none;display:flex;gap:2rem}
nav a{color:var(--t2);text-decoration:none;font-size:0.875rem;font-weight:500;transition:color 0.3s}
nav a:hover{color:var(--t1)}
main{position:relative;z-index:1}
.hero{min-height:70vh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:8rem 2rem 4rem}
.badge{display:inline-flex;align-items:center;gap:0.5rem;padding:0.4rem 1rem;border-radius:999px;border:1px solid var(--border);background:var(--card);font-size:0.8rem;color:var(--t2);margin-bottom:2rem;backdrop-filter:blur(10px)}
.badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--a2);box-shadow:0 0 8px var(--a2)}
.hero h1{font-size:clamp(2.5rem,6vw,4rem);font-weight:700;letter-spacing:-2px;line-height:1.1;margin-bottom:1.5rem}
.hero h1 .gradient{background:linear-gradient(135deg,var(--a1),var(--a2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:1.1rem;color:var(--t2);max-width:480px;margin-bottom:2.5rem}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;justify-content:center}
.btn{display:inline-flex;align-items:center;gap:0.5rem;padding:0.7rem 1.5rem;border-radius:var(--rs);font-size:0.875rem;font-weight:600;text-decoration:none;cursor:pointer;border:none;transition:all 0.3s;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,var(--a1),#8b5cf6);color:#fff;box-shadow:0 4px 20px var(--g1)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--g1)}
.btn-primary:disabled{opacity:0.5;cursor:not-allowed;transform:none}
.btn-ghost{background:var(--card);color:var(--t1);border:1px solid var(--border);backdrop-filter:blur(10px)}
.btn-ghost:hover{background:rgba(255,255,255,0.05);border-color:var(--bhover)}
.btn-full{width:100%;justify-content:center}
.btn-sm{padding:0.5rem 1rem;font-size:0.8rem}
section{padding:5rem 2rem}
.section-header{text-align:center;margin-bottom:3rem}
.section-header h2{font-size:2rem;font-weight:700;letter-spacing:-1px;margin-bottom:0.5rem}
.section-header p{color:var(--t2);max-width:480px;margin:0 auto}
.workspace-container{max-width:1100px;margin:0 auto;border:1px solid var(--border);border-radius:var(--r);background:var(--bg2);overflow:hidden}
.tool-tabs{display:flex;border-bottom:1px solid var(--border);background:rgba(255,255,255,0.02)}
.tool-tab{flex:1;display:flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.85rem 1rem;border:none;background:none;color:var(--t2);font-size:0.875rem;font-weight:500;cursor:pointer;transition:all 0.3s;font-family:inherit;border-bottom:2px solid transparent}
.tool-tab:hover{color:var(--t1);background:rgba(255,255,255,0.02)}
.tool-tab.active{color:var(--t1);border-bottom-color:var(--a2);background:rgba(255,255,255,0.03)}
.tool-panel{display:none}
.tool-panel.active{display:block}
.panel-grid{display:grid;grid-template-columns:1fr 1fr;min-height:600px}
.panel-settings{padding:1.5rem;border-right:1px solid var(--border);overflow-y:auto;max-height:700px}
.settings-group{margin-bottom:1.25rem;padding-bottom:1.25rem;border-bottom:1px solid var(--border)}
.settings-group:last-of-type{border-bottom:none}
.settings-title{display:flex;align-items:center;gap:0.5rem;font-size:0.85rem;font-weight:600;margin-bottom:0.75rem;color:var(--t1)}
.settings-row{display:grid;grid-template-columns:1fr 1fr;gap:0.75rem}
.field{margin-bottom:0.6rem}
.field label{display:block;font-size:0.75rem;font-weight:500;color:var(--t2);margin-bottom:0.3rem}
.field input[type="number"],.field input[type="text"],.field select{width:100%;padding:0.5rem 0.65rem;background:rgba(255,255,255,0.04);border:1px solid var(--border);border-radius:var(--rs);color:var(--t1);font-size:0.8rem;font-family:'JetBrains Mono',monospace;transition:border-color 0.3s;outline:none}
.field input:focus,.field select:focus{border-color:var(--a2)}
.field select{cursor:pointer}
.field select option{background:var(--bg2);color:var(--t1)}
.checkbox-field label{display:flex;align-items:center;gap:0.5rem;cursor:pointer;font-size:0.8rem}
.checkbox-field input[type="checkbox"]{accent-color:var(--a2);width:14px;height:14px}
.upload-zone{border:2px dashed var(--border);border-radius:var(--r);padding:2rem 1rem;text-align:center;cursor:pointer;transition:all 0.3s}
.upload-zone:hover{border-color:var(--a2);background:rgba(0,206,201,0.03)}
.upload-zone.has-files{border-color:var(--a2);background:rgba(0,206,201,0.05)}
.upload-zone-sm{padding:1rem}
.upload-icon{color:var(--t3);margin-bottom:0.5rem}
.upload-text{font-size:0.85rem;color:var(--t2)}
.upload-text-sm{font-size:0.8rem;color:var(--t2)}
.upload-hint{font-size:0.75rem;color:var(--t3);margin-top:0.25rem}
.upload-zone.dragover{border-color:var(--a2);background:rgba(0,206,201,0.08)}
.panel-preview{display:flex;flex-direction:column;background:rgba(0,0,0,0.2)}
.preview-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;border-bottom:1px solid var(--border)}
.preview-header h3{font-size:0.85rem;font-weight:600}
.preview-status{font-size:0.75rem;color:var(--t3);font-family:'JetBrains Mono',monospace}
.preview-status.processing{color:var(--a2)}
.preview-status.done{color:#28c840}
.preview-status.error{color:var(--a3)}
.preview-canvas{flex:1;display:flex;align-items:center;justify-content:center;padding:1.5rem;min-height:400px;overflow:auto}
.preview-canvas img{max-width:100%;max-height:500px;border-radius:var(--rs);box-shadow:0 10px 30px rgba(0,0,0,0.4)}
.preview-placeholder{text-align:center;color:var(--t3)}
.preview-placeholder p{font-size:0.85rem;margin-top:0.75rem}
.preview-actions{padding:1rem 1.5rem;border-top:1px solid var(--border);display:flex;justify-content:center;flex-wrap:wrap;gap:0.5rem}
.upload-thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(70px,1fr));gap:0.4rem;padding:0.5rem;width:100%;max-height:420px;overflow-y:auto}
.upload-thumb{display:flex;flex-direction:column;align-items:center;gap:0.15rem}
.upload-thumb img{width:64px;height:64px;object-fit:cover;border-radius:6px;border:1px solid var(--border);background:var(--bg2)}
.upload-thumb-label{font-size:0.55rem;color:var(--t3);font-family:'JetBrains Mono',monospace;text-align:center;max-width:68px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.upload-more{font-size:0.75rem;color:var(--t3);text-align:center;padding:0.5rem;grid-column:1/-1}
.pack-results{width:100%;text-align:center}
.pack-summary{font-size:0.8rem;color:var(--t2);margin-bottom:1rem;font-family:'JetBrains Mono',monospace}
.pack-grid-preview{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:0.75rem;max-height:450px;overflow-y:auto;padding:0.25rem}
.pack-thumb{display:flex;flex-direction:column;align-items:center;gap:0.35rem}
.pack-thumb img{width:100%;border-radius:6px;border:1px solid var(--border);box-shadow:0 4px 12px rgba(0,0,0,0.3);cursor:pointer;transition:transform 0.2s,box-shadow 0.2s}
.pack-thumb img:hover{transform:scale(1.05);box-shadow:0 8px 20px rgba(0,0,0,0.4)}
.pack-thumb-label{font-size:0.65rem;color:var(--t3);font-family:'JetBrains Mono',monospace}
.features{max-width:900px;margin:0 auto}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.25rem}
.feature{padding:1.25rem;border-radius:var(--r);border:1px solid var(--border);background:var(--card);transition:border-color 0.3s}
.feature:hover{border-color:var(--bhover)}
.feature-icon{margin-bottom:0.75rem;font-size:1.5rem}
.feature h4{font-size:0.95rem;font-weight:600;margin-bottom:0.3rem}
.feature p{font-size:0.8rem;color:var(--t2)}
footer{text-align:center;padding:2.5rem 2rem;border-top:1px solid var(--border);color:var(--t2);font-size:0.8rem}
.toast{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(100px);padding:0.75rem 1.5rem;border-radius:var(--rs);background:var(--bg2);border:1px solid var(--border);color:var(--t1);font-size:0.85rem;z-index:200;backdrop-filter:blur(20px);box-shadow:0 10px 30px rgba(0,0,0,0.4);transition:transform 0.4s cubic-bezier(0.16,1,0.3,1);pointer-events:none}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast.error{border-color:rgba(253,121,168,0.3)}
.toast.success{border-color:rgba(0,206,201,0.3)}
.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,0.2);border-top-color:#fff;border-radius:50%;animation:spin 0.6s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:768px){nav ul{display:none}.panel-grid{grid-template-columns:1fr}.panel-settings{border-right:none;border-bottom:1px solid var(--border);max-height:none}.hero h1{font-size:2rem}}