*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
    --bg:#0a0e17;--bg2:#111827;--bg3:#1f2937;
    --text:#e5e7eb;--text2:#9ca3af;--text3:#6b7280;
    --primary:#10b981;--primary-hover:#059669;
    --success:#10b981;--danger:#ef4444;--warning:#f59e0b;
    --accent:#3b82f6;--purple:#8b5cf6;
    --border:#1f2937;--card:#111827;
    --radius:12px;--radius-sm:8px;
    --shadow:0 4px 24px rgba(0,0,0,.4);
    --transition:.2s ease;
    --max-w:1200px;
}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent)}
button,input,select,textarea{font:inherit;color:inherit}
.container{max-width:var(--max-w);margin:0 auto;padding:0 1.5rem}
.main{flex:1;padding:2rem 0 4rem}
.header{background:var(--bg2);border-bottom:1px solid var(--border);padding:.75rem 0;position:sticky;top:0;z-index:100;backdrop-filter:blur(12px)}
.header .container{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:.75rem;font-size:1.2rem;font-weight:700;color:var(--text);text-decoration:none}
.logo svg{flex-shrink:0}
.nav{display:flex;gap:.5rem}
.nav-link{color:var(--text2);font-size:.85rem;padding:.4rem .6rem;border-radius:var(--radius-sm);transition:all var(--transition)}
.nav-link:hover{color:var(--text);background:var(--bg3)}
.hero{text-align:center;padding:3rem 0 2.5rem}
.hero h1{font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.75rem}
.hero p{color:var(--text2);font-size:1.1rem;max-width:600px;margin:0 auto 1.5rem}
.hero-badges{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;gap:.35rem;padding:.4rem .9rem;border-radius:2rem;font-size:.8rem;font-weight:600}
.badge-green{background:rgba(16,185,129,.15);color:var(--success);border:1px solid rgba(16,185,129,.3)}
.badge-blue{background:rgba(59,130,246,.15);color:var(--accent);border:1px solid rgba(59,130,246,.3)}
.badge-purple{background:rgba(139,92,246,.15);color:var(--purple);border:1px solid rgba(139,92,246,.3)}
.badge-tiny{font-size:.7rem;padding:.2rem .5rem;margin-top:.35rem}
.tools-category{margin-bottom:2.5rem}
.category-title{font-size:1.05rem;font-weight:600;color:var(--text2);margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:.5rem}
.category-icon{width:20px;height:20px;color:var(--primary)}.category-icon svg{width:100%;height:100%}
.tools-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}
.tool-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;text-decoration:none;transition:all var(--transition);display:flex;flex-direction:column;align-items:center;text-align:center;gap:.4rem}
.tool-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 8px 32px rgba(16,185,129,.12)}
.tool-card-icon{width:44px;height:44px;color:var(--primary);margin-bottom:.2rem}.tool-card-icon svg{width:100%;height:100%}
.tool-card-name{font-size:.9rem;font-weight:600;color:var(--text)}
.tool-card-desc{font-size:.78rem;color:var(--text3);line-height:1.4}
.features{text-align:center;padding:3rem 0}
.features h2{font-size:1.4rem;margin-bottom:2rem}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}
.feature{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:2rem 1.5rem}
.feature-icon{width:40px;height:40px;color:var(--primary);margin:0 auto .75rem}.feature-icon svg{width:100%;height:100%}
.feature h3{font-size:1rem;margin-bottom:.5rem}
.feature p{color:var(--text2);font-size:.88rem}
.tool-page{max-width:900px;margin:0 auto}
.back-link{display:inline-flex;align-items:center;gap:.5rem;color:var(--text2);font-size:.9rem;margin-bottom:1.5rem;padding:.5rem 0}
.back-link:hover{color:var(--text)}
.tool-title{font-size:1.8rem;font-weight:700;margin-bottom:.5rem}
.tool-desc{color:var(--text2);font-size:1rem;margin-bottom:2rem}
.tool-body{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}
.form-group{margin-bottom:1.25rem}.form-group:last-child{margin-bottom:0}
.form-label{display:block;font-size:.9rem;font-weight:500;margin-bottom:.4rem;color:var(--text2)}
.form-input,.form-select,.form-textarea{width:100%;padding:.7rem .9rem;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.95rem;transition:border var(--transition)}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary)}
.form-textarea{min-height:120px;resize:vertical;font-family:'Courier New',monospace;font-size:.88rem}
.form-row{display:flex;gap:1rem}.form-row>*{flex:1}
.form-checkbox{display:flex;align-items:center;gap:.5rem;cursor:pointer;font-size:.9rem}
.form-checkbox input{width:18px;height:18px;accent-color:var(--primary)}
.form-hint{font-size:.8rem;color:var(--text3);margin-top:.3rem}
.result-section{margin-top:1.5rem}
.result-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}
.code-output{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:1rem;font-family:'Courier New',monospace;font-size:.85rem;white-space:pre-wrap;word-break:break-all;max-height:500px;overflow-y:auto;position:relative;line-height:1.5}
.code-output .line-num{color:var(--text3);user-select:none;display:inline-block;min-width:3ch;text-align:right;margin-right:1rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1.5rem;border:none;border-radius:var(--radius-sm);font-weight:600;font-size:.95rem;cursor:pointer;transition:all var(--transition)}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}
.btn-success{background:var(--success);color:#fff}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text2)}.btn-outline:hover{border-color:var(--text2);color:var(--text)}
.btn-lg{padding:.85rem 2.5rem;font-size:1.05rem}
.btn-sm{padding:.4rem 1rem;font-size:.85rem}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-copy{padding:.3rem .6rem;font-size:.75rem;background:var(--bg3);color:var(--text2);border:1px solid var(--border);border-radius:4px;cursor:pointer;position:absolute;top:.5rem;right:.5rem}
.btn-copy:hover{background:var(--border)}
.loading{display:flex;align-items:center;justify-content:center;gap:.75rem;padding:2rem;color:var(--text2)}
.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.perm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1rem 0}
.perm-col{text-align:center}
.perm-col h4{font-size:.85rem;color:var(--text2);margin-bottom:.5rem}
.perm-cb{display:flex;flex-direction:column;gap:.3rem}
.tag{display:inline-block;padding:.15rem .5rem;border-radius:4px;font-size:.75rem;font-weight:600;margin:.1rem}
.tag-green{background:rgba(16,185,129,.15);color:var(--success)}
.tag-blue{background:rgba(59,130,246,.15);color:var(--accent)}
.tag-yellow{background:rgba(245,158,11,.15);color:var(--warning)}
.match-highlight{background:rgba(16,185,129,.3);padding:1px 2px;border-radius:2px}
.footer{background:var(--bg2);border-top:1px solid var(--border);padding:1.5rem 0;text-align:center;font-size:.85rem;color:var(--text3)}
.footer a{color:var(--text2)}
@media(max-width:768px){.hero h1{font-size:1.75rem}.tools-row{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}.tool-title{font-size:1.4rem}.form-row{flex-direction:column;gap:.75rem}.features-grid{grid-template-columns:1fr}.perm-grid{grid-template-columns:1fr}}
@media(max-width:480px){.tools-row{grid-template-columns:repeat(2,1fr)}.tool-card-desc{display:none}}