:root{--bg:#0d0f14;--bg2:#13161e;--bg3:#1a1e29;--accent:#6ee7b7;--accent2:#38bdf8;--accent3:#f472b6;--text:#e2e8f0;--muted:#64748b;--border:#1e2535;--radius:14px;}*{margin:0;padding:0;box-sizing:border-box;}html{scroll-behavior:smooth;}body{font-family:'DM Sans',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;}a{color:inherit;text-decoration:none;}nav{position:sticky;top:0;z-index:100;background:rgba(13,15,20,0.95);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);padding:0 24px;}.nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:60px;}.logo{font-family:'Syne',sans-serif;font-weight:800;font-size:1.35rem;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}.nav-links{display:flex;gap:24px;list-style:none;}.nav-links a{font-size:0.875rem;font-weight:500;color:var(--muted);transition:color 0.2s;}.nav-links a:hover{color:var(--accent);}.hamburger{display:none;cursor:pointer;flex-direction:column;gap:5px;}.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;}.mobile-menu{display:none;flex-direction:column;background:var(--bg2);border-bottom:1px solid var(--border);padding:16px 24px;gap:4px;}.mobile-menu.open{display:flex;}.mobile-menu a{padding:10px 0;color:var(--muted);font-size:0.9rem;border-bottom:1px solid var(--border);}.tool-header{background:linear-gradient(135deg,rgba(110,231,183,0.07),rgba(56,189,248,0.05));border-bottom:1px solid var(--border);padding:48px 24px 40px;}.tool-header-inner{max-width:900px;margin:0 auto;}.breadcrumb{font-size:0.8rem;color:var(--muted);margin-bottom:16px;}.breadcrumb a{color:var(--muted);transition:color 0.2s;}.breadcrumb a:hover{color:var(--accent);}.tool-title-row{display:flex;align-items:center;gap:16px;margin-bottom:10px;}.tool-icon-lg{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;flex-shrink:0;}.tool-header h1{font-family:'Syne',sans-serif;font-size:2rem;font-weight:800;}.tool-header p{color:var(--muted);font-size:0.97rem;max-width:640px;}.tool-wrap{max-width:900px;margin:0 auto;padding:40px 24px 60px;}.tool-box{background:var(--bg2);border:1px solid var(--border);border-radius:20px;padding:32px;margin-bottom:24px;}.tool-box h3{font-family:'Syne',sans-serif;font-size:1rem;font-weight:700;margin-bottom:16px;color:var(--accent);}label{font-size:0.85rem;color:var(--muted);margin-bottom:7px;display:block;font-weight:500;}textarea,input[type="text"],input[type="number"],input[type="email"],select{width:100%;background:var(--bg3);border:1px solid var(--border);border-radius:10px;color:var(--text);padding:12px 16px;font-family:'DM Sans',sans-serif;font-size:0.95rem;outline:none;transition:border-color 0.2s;}textarea:focus,input:focus,select:focus{border-color:var(--accent);}textarea{resize:vertical;min-height:150px;}select option{background:var(--bg2);}input[type="range"]{width:100%;accent-color:var(--accent);margin-top:6px;}.field{margin-bottom:18px;}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}.field-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 24px;border-radius:10px;border:none;font-family:'DM Sans',sans-serif;font-size:0.9rem;font-weight:600;cursor:pointer;transition:all 0.2s;}.btn-primary{background:var(--accent);color:#0d0f14;}.btn-primary:hover{opacity:0.88;transform:translateY(-1px);}.btn-secondary{background:var(--bg3);color:var(--text);border:1px solid var(--border);}.btn-secondary:hover{border-color:var(--accent);color:var(--accent);}.btn-sm{padding:8px 16px;font-size:0.82rem;}.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;}.btn-full{width:100%;}.result-box{background:var(--bg3);border:1px solid var(--border);border-radius:10px;padding:16px;min-height:52px;font-size:0.92rem;margin-top:14px;word-break:break-word;}.result-box.mono{font-family:monospace;font-size:0.88rem;}.result-box.big{font-size:1.3rem;font-family:'Syne',sans-serif;font-weight:800;color:var(--accent);text-align:center;padding:24px;}.result-box.pre{white-space:pre-wrap;}.result-box.scroll{max-height:280px;overflow-y:auto;}.stats-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:14px;}.stat-chip{background:var(--bg3);border:1px solid var(--border);border-radius:10px;padding:14px 18px;flex:1;min-width:90px;text-align:center;}.stat-chip-val{font-family:'Syne',sans-serif;font-size:1.5rem;font-weight:800;color:var(--accent);}.stat-chip-lbl{font-size:0.72rem;color:var(--muted);margin-top:2px;}.copy-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:8px;background:var(--bg3);border:1px solid var(--border);color:var(--muted);font-size:0.82rem;cursor:pointer;font-weight:500;transition:all 0.2s;margin-top:10px;}.copy-btn:hover{border-color:var(--accent);color:var(--accent);}.info-card{background:rgba(110,231,183,0.05);border:1px solid rgba(110,231,183,0.15);border-radius:12px;padding:18px 20px;margin-top:20px;font-size:0.88rem;color:var(--muted);line-height:1.7;}.info-card strong{color:var(--text);}.progress-bar-wrap{height:8px;background:var(--border);border-radius:8px;margin-top:8px;overflow:hidden;}.progress-bar{height:100%;border-radius:8px;transition:width 0.4s,background 0.3s;}.tag-badge{display:inline-block;padding:4px 12px;border-radius:50px;font-size:0.72rem;font-weight:600;text-transform:uppercase;letter-spacing:0.06em;}.tag-text{background:rgba(110,231,183,0.1);color:var(--accent);}.tag-calc{background:rgba(56,189,248,0.1);color:var(--accent2);}.tag-seo{background:rgba(244,114,182,0.1);color:var(--accent3);}.tag-util{background:rgba(168,85,247,0.1);color:#a855f7;}.related-section{max-width:900px;margin:0 auto;padding:0 24px 60px;}.related-section h3{font-family:'Syne',sans-serif;font-size:1.1rem;font-weight:800;margin-bottom:16px;}.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;}.related-card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:16px;display:flex;align-items:center;gap:12px;transition:all 0.2s;}.related-card:hover{border-color:var(--accent);transform:translateY(-2px);}.related-card span{font-size:1.2rem;}.related-card p{font-size:0.83rem;font-weight:600;}.ad-slot{background:var(--bg2);border:1px dashed var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:0.78rem;margin:24px 0;}.ad-728{width:100%;max-width:728px;height:90px;margin:24px auto;}.ad-336{width:336px;height:280px;margin:16px auto;}footer{background:var(--bg2);border-top:1px solid var(--border);padding:36px 24px;}.footer-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;}.footer-links{display:flex;gap:20px;flex-wrap:wrap;}.footer-links a{font-size:0.82rem;color:var(--muted);transition:color 0.2s;}.footer-links a:hover{color:var(--accent);}.footer-copy{font-size:0.82rem;color:var(--muted);}@media (max-width:768px){.nav-links{display:none;}.hamburger{display:flex;}.field-row,.field-row-3{grid-template-columns:1fr;}.tool-header h1{font-size:1.6rem;}.stats-row{gap:8px;}.stat-chip{min-width:70px;padding:10px 12px;}}footer{background:var(--bg2);border-top:1px solid var(--border);padding:36px 24px;display:block;}.footer-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;}.footer-links{display:flex;gap:20px;flex-wrap:wrap;}.footer-links a{font-size:0.82rem;color:var(--muted);transition:color 0.2s;text-decoration:none;}.footer-links a:hover{color:var(--accent);}.footer-copy{font-size:0.82rem;color:var(--muted);}@font-face{font-family:'Syne';font-display:swap;}@font-face{font-family:'DM Sans';font-display:swap;}img,video{max-width:100%;height:auto;}*{-webkit-font-smoothing:antialiased;}.tool-card,.related-card,.stat-chip{will-change:auto;contain:layout style;}a,button,.btn,.cat-tab,.tool-card{-webkit-tap-highlight-color:transparent;touch-action:manipulation;}
@media(max-width:480px){
.tool-header h1{font-size:1.4rem;}
.tool-header p{font-size:0.88rem;}
.stat-chip-val{font-size:1.2rem;}
.btn{padding:10px 16px;font-size:0.85rem;}
.tool-box{padding:20px 16px;}
.related-grid{grid-template-columns:1fr 1fr;}
.ad-336{width:100%;max-width:336px;}
.footer-inner{flex-direction:column;text-align:center;}
.footer-links{justify-content:center;gap:14px;}
.breadcrumb{font-size:0.75rem;}
}
@media(max-width:360px){
.tool-header{padding:32px 16px 28px;}
.tool-wrap{padding:28px 16px 48px;}
.stats-row{gap:6px;}
.stat-chip{padding:8px 10px;min-width:60px;}
.stat-chip-val{font-size:1rem;}
}
@media(min-width:769px) and (max-width:1024px){
.tool-wrap{padding:36px 24px 56px;}
.related-grid{grid-template-columns:repeat(3,1fr);}
}