*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#6366f1;--primary-dark:#4f46e5;--primary-light:#a5b4fc;
  --bg:#f8fafc;--surface:#ffffff;--surface-alt:#f1f5f9;
  --text:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;
  --border:#e2e8f0;--border-focus:#6366f1;
  --success:#22c55e;--warning:#f59e0b;--danger:#ef4444;
  --shadow:0 1px 3px rgba(0,0,0,.1);--shadow-lg:0 4px 14px rgba(0,0,0,.1);
  --radius:12px;--radius-sm:8px;
  --font:-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
  --mono:'SF Mono','Fira Code','Consolas',monospace;
  --max-w:1100px;--nav-h:64px;
  --ad-bg:#f1f5f9;
}
[data-theme="dark"]{
  --bg:#0f172a;--surface:#1e293b;--surface-alt:#334155;
  --text:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;
  --border:#334155;--border-focus:#818cf8;
  --shadow:0 1px 3px rgba(0,0,0,.3);--shadow-lg:0 4px 14px rgba(0,0,0,.4);
  --ad-bg:#1e293b;
}
html{scroll-behavior:smooth}
body{font-family:var(--font);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 .2s}
a:hover{color:var(--primary-dark)}
img{max-width:100%;display:block}
button,input,textarea,select{font-family:inherit;font-size:inherit}

/* NAV */
.navbar{background:var(--surface);border-bottom:1px solid var(--border);height:var(--nav-h);position:sticky;top:0;z-index:100;display:flex;align-items:center;padding:0 1.5rem;backdrop-filter:blur(10px)}
.nav-inner{max-width:var(--max-w);width:100%;margin:0 auto;display:flex;justify-content:space-between;align-items:center}
.nav-brand{font-size:1.4rem;font-weight:800;color:var(--primary);display:flex;align-items:center;gap:.5rem}
.nav-brand span{background:var(--primary);color:#fff;padding:.1rem .5rem;border-radius:6px;font-size:.7rem;font-weight:700;letter-spacing:.5px}
.nav-links{display:flex;gap:1.5rem;align-items:center}
.nav-links a{color:var(--text-secondary);font-weight:500;font-size:.9rem;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--primary)}
.theme-toggle{background:none;border:1px solid var(--border);border-radius:50%;width:36px;height:36px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;transition:all .2s;color:var(--text)}
.theme-toggle:hover{border-color:var(--primary);color:var(--primary)}
.nav-menu-btn{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text)}

/* HERO */
.hero{padding:3rem 1.5rem 2rem;text-align:center}
.hero h1{font-size:2.2rem;font-weight:800;margin-bottom:.8rem;line-height:1.2}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero p{color:var(--text-secondary);font-size:1.1rem;max-width:600px;margin:0 auto}
.hero-stats{display:flex;gap:2rem;justify-content:center;margin-top:1.5rem;flex-wrap:wrap}
.hero-stat{font-size:.9rem;color:var(--text-muted)}
.hero-stat strong{color:var(--text);font-size:1.3rem;display:block}

/* SEARCH */
.search-container{max-width:560px;margin:0 auto 2rem;padding:0 1.5rem}
.search-box{width:100%;padding:.85rem 1.2rem .85rem 3rem;border:2px solid var(--border);border-radius:var(--radius);font-size:1rem;background:var(--surface);color:var(--text);outline:none;transition:border-color .2s}
.search-box:focus{border-color:var(--border-focus)}
.search-wrap{position:relative}
.search-icon{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:1.1rem;pointer-events:none}

/* CATEGORIES */
.categories{display:flex;gap:.5rem;justify-content:center;flex-wrap:wrap;padding:0 1.5rem;margin-bottom:2rem}
.cat-btn{padding:.45rem 1.1rem;border:1px solid var(--border);border-radius:20px;background:var(--surface);color:var(--text-secondary);cursor:pointer;font-size:.85rem;font-weight:500;transition:all .2s}
.cat-btn:hover,.cat-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* TOOLS GRID */
.tools-grid{max-width:var(--max-w);margin:0 auto;padding:0 1.5rem 3rem;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.2rem}
.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;cursor:pointer;transition:all .25s;text-decoration:none;color:inherit;display:block}
.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--primary-light)}
.tool-icon{width:48px;height:48px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:1rem}
.tool-card h3{font-size:1.05rem;font-weight:700;margin-bottom:.4rem}
.tool-card p{color:var(--text-secondary);font-size:.88rem;line-height:1.5}
.tool-card .tag{display:inline-block;margin-top:.8rem;padding:.2rem .6rem;background:var(--surface-alt);border-radius:6px;font-size:.75rem;color:var(--text-muted);font-weight:500}
.no-results{text-align:center;padding:3rem;color:var(--text-muted);grid-column:1/-1}

/* AD SLOT */
.ad-slot{background:var(--ad-bg);border:2px dashed var(--border);border-radius:var(--radius);text-align:center;padding:1.5rem;margin:2rem auto;max-width:var(--max-w);color:var(--text-muted);font-size:.8rem}

/* TOOL PAGE */
.tool-page{max-width:800px;margin:0 auto;padding:2rem 1.5rem}
.tool-page h1{font-size:1.8rem;font-weight:800;margin-bottom:.5rem}
.tool-page .subtitle{color:var(--text-secondary);margin-bottom:2rem;font-size:1rem}
.tool-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin-bottom:1.5rem}
.tool-section h2{font-size:1.1rem;font-weight:700;margin-bottom:1rem}

/* FORM ELEMENTS */
.form-group{margin-bottom:1.2rem}
.form-group label{display:block;font-weight:600;margin-bottom:.4rem;font-size:.9rem;color:var(--text)}
textarea,input[type="text"],input[type="number"],input[type="password"],input[type="url"],select{
  width:100%;padding:.7rem 1rem;border:2px solid var(--border);border-radius:var(--radius-sm);
  font-size:.95rem;background:var(--surface);color:var(--text);outline:none;transition:border-color .2s;
  resize:vertical;
}
textarea:focus,input[type="text"]:focus,input[type="number"]:focus,input[type="password"]:focus,input[type="url"]:focus,select:focus{
  border-color:var(--border-focus);
}
textarea{font-family:var(--mono);min-height:160px;line-height:1.6}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1.4rem;border:none;border-radius:var(--radius-sm);cursor:pointer;font-weight:600;font-size:.9rem;transition:all .2s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:transparent;border:2px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-sm{padding:.45rem .9rem;font-size:.8rem}
.btn-row{display:flex;gap:.6rem;flex-wrap:wrap}

/* OUTPUT */
.output-box{background:var(--surface-alt);border:1px solid var(--border);border-radius:var(--radius-sm);padding:1rem;min-height:80px;font-family:var(--mono);font-size:.9rem;white-space:pre-wrap;word-break:break-all;line-height:1.6;position:relative}
.output-label{font-size:.8rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:.5rem}
.copy-btn{position:absolute;top:.5rem;right:.5rem;background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:.3rem .6rem;font-size:.75rem;cursor:pointer;color:var(--text-secondary);transition:all .2s}
.copy-btn:hover{border-color:var(--primary);color:var(--primary)}

/* STATS BAR */
.stats-bar{display:flex;gap:1.5rem;flex-wrap:wrap;padding:.8rem 0;border-bottom:1px solid var(--border);margin-bottom:1rem;font-size:.85rem;color:var(--text-secondary)}
.stats-bar strong{color:var(--text)}

/* ABOUT/PAGE */
.page-content{max-width:800px;margin:2rem auto;padding:0 1.5rem}
.page-content h1{font-size:1.8rem;font-weight:800;margin-bottom:1.5rem}
.page-content h2{font-size:1.3rem;font-weight:700;margin:2rem 0 .8rem;color:var(--primary)}
.page-content p,.page-content li{color:var(--text-secondary);line-height:1.8;margin-bottom:.8rem}
.page-content ul,.page-content ol{padding-left:1.5rem;margin-bottom:1rem}
.page-content li{margin-bottom:.4rem}

/* FOOTER */
.footer{background:var(--surface);border-top:1px solid var(--border);padding:2.5rem 1.5rem;margin-top:auto}
.footer-inner{max-width:var(--max-w);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem}
.footer-brand{font-size:1.2rem;font-weight:800;color:var(--primary);margin-bottom:.5rem}
.footer-desc{color:var(--text-muted);font-size:.85rem;line-height:1.6}
.footer h4{font-size:.85rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;margin-bottom:.8rem;color:var(--text)}
.footer ul{list-style:none}
.footer li{margin-bottom:.4rem}
.footer li a{color:var(--text-muted);font-size:.85rem;transition:color .2s}
.footer li a:hover{color:var(--primary)}
.footer-bottom{text-align:center;padding-top:1.5rem;margin-top:1.5rem;border-top:1px solid var(--border);color:var(--text-muted);font-size:.8rem}

/* CHECKBOX/TOGGLE */
.toggle-row{display:flex;align-items:center;gap:.8rem;margin-bottom:1rem}
.toggle{position:relative;width:44px;height:24px;flex-shrink:0}
.toggle input{opacity:0;width:0;height:0}
.toggle-slider{position:absolute;inset:0;background:var(--border);border-radius:24px;cursor:pointer;transition:.3s}
.toggle-slider::before{content:'';position:absolute;left:3px;top:3px;width:18px;height:18px;background:#fff;border-radius:50%;transition:.3s}
.toggle input:checked+.toggle-slider{background:var(--primary)}
.toggle input:checked+.toggle-slider::before{transform:translateX(20px)}

/* RESPONSIVE */
@media(max-width:768px){
  .nav-links{display:none}
  .nav-menu-btn{display:block}
  .nav-links.open{display:flex;position:absolute;top:var(--nav-h);left:0;right:0;background:var(--surface);border-bottom:1px solid var(--border);flex-direction:column;padding:1rem 1.5rem;gap:.8rem;box-shadow:var(--shadow-lg)}
  .hero h1{font-size:1.6rem}
  .hero p{font-size:.95rem}
  .tools-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
  .tool-page h1{font-size:1.4rem}
}
@media(max-width:480px){
  .footer-inner{grid-template-columns:1fr}
  .hero-stats{gap:1rem}
  .categories{gap:.3rem}
  .cat-btn{padding:.35rem .8rem;font-size:.8rem}
}

/* ANIMATIONS */
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.tool-card{animation:fadeIn .3s ease both}
.tool-card:nth-child(2){animation-delay:.05s}
.tool-card:nth-child(3){animation-delay:.1s}
.tool-card:nth-child(4){animation-delay:.15s}
.tool-card:nth-child(5){animation-delay:.2s}
.tool-card:nth-child(6){animation-delay:.25s}