*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0f1e;
  --bg-2:#0f1530;
  --card:rgba(255,255,255,0.04);
  --card-border:rgba(255,255,255,0.08);
  --text:#e6e9f5;
  --muted:#9aa3c7;
  --primary:#4f7cff;
  --primary-2:#7b5cff;
  --accent:#22d3ee;
  --success:#22c55e;
  --danger:#ef4444;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(0,0,0,0.35);
}
[data-theme="light"]{
  --bg:#f7f8fc;
  --bg-2:#ffffff;
  --card:rgba(0,0,0,0.03);
  --card-border:rgba(0,0,0,0.08);
  --text:#0d1330;
  --muted:#5a6488;
  --shadow:0 6px 24px rgba(20,30,80,0.08);
}
html,body{background:var(--bg);color:var(--text);font-family:'Inter',system-ui,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased;scroll-behavior:smooth}
body{min-height:100vh;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select{font-family:inherit;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 18px}
.muted{color:var(--muted);font-size:.9rem}
.desktop-only{display:flex}
.mobile-only{display:none}

/* HEADER */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:rgba(10,15,30,0.75);border-bottom:1px solid var(--card-border)}
[data-theme="light"] .site-header{background:rgba(255,255,255,0.85)}
.header-inner{display:flex;align-items:center;gap:16px;height:64px}
.logo{display:flex;align-items:center;text-decoration:none;font-weight:800;font-size:1.25rem;letter-spacing:-.02em;color:var(--text)}
.logo-text{font-weight:800;font-size:1.25rem;letter-spacing:-.02em;color:var(--text);line-height:1}
.header-search{flex:1;position:relative;max-width:520px;margin:0 auto}
.header-search input{width:100%;height:42px;padding:0 16px;border-radius:999px;background:var(--card);border:1px solid var(--card-border);color:var(--text);outline:none;transition:.2s}
.header-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,124,255,.2)}
.suggestions{position:absolute;top:48px;left:0;right:0;background:var(--bg-2);border:1px solid var(--card-border);border-radius:12px;max-height:320px;overflow-y:auto;display:none;box-shadow:var(--shadow);z-index:100}
.suggestions.open{display:block}
.suggestion-item{padding:10px 14px;cursor:pointer;border-bottom:1px solid var(--card-border);font-size:.92rem}
.suggestion-item:hover,.suggestion-item.active{background:var(--card)}
.suggestion-item small{color:var(--muted);margin-left:6px}

.header-nav{align-items:center;gap:10px}
.icon-btn{width:40px;height:40px;border-radius:10px;background:var(--card);border:1px solid var(--card-border);display:grid;place-items:center;font-size:1.1rem;transition:.2s}
.icon-btn:hover{background:rgba(255,255,255,.08);transform:translateY(-1px)}
.nav-btn{padding:9px 14px;border-radius:10px;background:var(--card);border:1px solid var(--card-border);font-weight:500;transition:.2s}
.nav-btn:hover{background:rgba(255,255,255,.08)}
.dropdown{position:relative}
.dropdown-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:230px;width:230px;background:var(--bg-2);border:1px solid var(--card-border);border-radius:14px;padding:6px;display:none;flex-direction:column;gap:2px;box-shadow:0 8px 32px rgba(0,0,0,.28);z-index:200;max-height:420px;overflow-y:auto}
.dropdown.open .dropdown-menu{display:flex}
.dd-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);padding:6px 10px 4px;font-weight:600;pointer-events:none;user-select:none}
.dd-cat-link{display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:9px;font-size:.875rem;transition:background .15s,color .15s;white-space:nowrap}
.dd-cat-link:hover{background:var(--card);color:var(--primary)}
.dd-divider{height:1px;background:var(--card-border);margin:4px 6px}
.dd-all-link{display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:9px;font-size:.875rem;font-weight:600;color:var(--primary);background:rgba(79,124,255,.08);transition:background .15s}
.dd-all-link:hover{background:rgba(79,124,255,.18)}
.panel-all-link{grid-column:1/-1;display:flex;align-items:center;justify-content:center;gap:8px;padding:11px;border-radius:10px;background:rgba(79,124,255,.1);border:1px solid rgba(79,124,255,.3);color:var(--primary);font-weight:600;font-size:.88rem;transition:background .15s}
.panel-all-link:hover{background:rgba(79,124,255,.2)}

.mobile-actions{align-items:center;gap:8px;margin-left:auto}

/* MOBILE PANEL */
.panel-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:90;opacity:0;pointer-events:none;transition:.25s}
.panel-overlay.open{opacity:1;pointer-events:auto}
.mobile-panel{position:fixed;top:0;right:0;bottom:0;width:min(85vw,360px);background:var(--bg-2);z-index:100;transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column;border-left:1px solid var(--card-border)}
.mobile-panel.open{transform:translateX(0)}
.panel-header{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--card-border)}
.panel-body{flex:1;overflow-y:auto;padding:16px;-webkit-overflow-scrolling:touch}
.panel-body h4{margin:14px 0 8px;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.panel-search{position:relative;margin-bottom:8px}
.panel-search input{width:100%;height:42px;padding:0 14px;border-radius:10px;background:var(--card);border:1px solid var(--card-border);outline:none}
.panel-categories{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.panel-categories a{padding:10px;border-radius:10px;background:var(--card);border:1px solid var(--card-border);font-size:.88rem;text-align:center}
.panel-popular a,.panel-link{display:block;padding:10px;border-radius:10px;font-size:.92rem}
.panel-popular a:hover,.panel-link:hover{background:var(--card)}

/* MAIN */
main{padding:24px 0 48px;min-height:60vh}

/* HERO */
.hero{padding:48px 0 32px;text-align:center}
.hero h1{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;line-height:1.15;margin-bottom:12px;background:linear-gradient(135deg,#fff,#9aa3ff);-webkit-background-clip:text;background-clip:text;color:transparent}
[data-theme="light"] .hero h1{background:linear-gradient(135deg,#0d1330,#4f7cff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);max-width:600px;margin:0 auto 24px;font-size:1.02rem}
.hero-search{max-width:580px;margin:0 auto;position:relative}
.hero-search input{width:100%;height:54px;padding:0 22px;border-radius:14px;background:var(--card);border:1px solid var(--card-border);font-size:1rem;outline:none}
.hero-search input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(79,124,255,.18)}

.popular-pills{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:18px}
.pill{padding:7px 14px;border-radius:999px;background:var(--card);border:1px solid var(--card-border);font-size:.85rem;transition:.2s}
.pill:hover{background:var(--primary);border-color:var(--primary);transform:translateY(-1px)}

/* SECTIONS */
section.block{margin:36px 0}
section.block h2{font-size:1.4rem;margin-bottom:16px;font-weight:700}
.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.category-card{padding:18px;border-radius:var(--radius);background:var(--card);border:1px solid var(--card-border);transition:.25s;cursor:pointer}
.category-card:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--shadow)}
.cat-icon{font-size:1.7rem;margin-bottom:8px}
.category-card h3{font-size:1rem;font-weight:600;margin-bottom:4px}
.category-card p{font-size:.8rem;color:var(--muted)}

/* CONVERTER */
.breadcrumb{display:flex;gap:6px;font-size:.85rem;color:var(--muted);margin-bottom:14px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--primary)}
.page-title{font-size:clamp(1.5rem,3vw,2rem);font-weight:800;margin-bottom:8px}
.intro{color:var(--muted);max-width:760px;margin-bottom:20px}

.converter-card{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:22px;margin-bottom:18px;box-shadow:var(--shadow)}
.conv-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:end}
.conv-field label{display:block;font-size:.82rem;color:var(--muted);margin-bottom:6px}
.conv-field input,.conv-field select{width:100%;height:46px;padding:0 14px;border-radius:10px;background:var(--bg-2);border:1px solid var(--card-border);outline:none;font-size:1rem}
.conv-field input:focus,.conv-field select:focus{border-color:var(--primary)}
.conv-field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px;background-repeat:no-repeat;padding-right:38px}
.swap-row{display:flex;justify-content:center;margin:10px 0}
.swap-btn{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-size:1.1rem;display:grid;place-items:center;transition:.2s}
.swap-btn:hover{transform:rotate(180deg)}
.conv-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.btn{padding:9px 16px;border-radius:10px;background:var(--card);border:1px solid var(--card-border);font-size:.88rem;font-weight:500;transition:.2s}
.btn:hover{background:rgba(255,255,255,.08)}
.btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));border:none;color:#fff}
.btn.primary:hover{transform:translateY(-1px)}

/* AD */
.ad-slot{margin:18px 0;padding:24px;border:1px dashed var(--card-border);border-radius:var(--radius);text-align:center;color:var(--muted);font-size:.85rem;background:var(--card)}

/* TABLES */
.formula-box{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:18px;margin:18px 0}
.formula-box code{display:block;padding:10px 14px;background:var(--bg-2);border-radius:8px;font-family:'Courier New',monospace;color:var(--accent);margin-top:8px;font-size:.95rem;word-break:break-word}
.conv-table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);overflow:hidden;margin:16px 0}
.conv-table th,.conv-table td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--card-border);font-size:.9rem}
.conv-table th{background:var(--bg-2);font-weight:600;font-size:.82rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.conv-table tr:last-child td{border-bottom:none}

.faq-item{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius-sm);margin-bottom:8px;overflow:hidden}
.faq-q{padding:13px 16px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:.95rem}
.faq-a{padding:0 16px;max-height:0;overflow:hidden;transition:.3s;color:var(--muted);font-size:.92rem}
.faq-item.open .faq-a{padding:0 16px 14px;max-height:400px}
.faq-q::after{content:"+";font-size:1.3rem;transition:.2s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}

.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.related-grid a{padding:11px 14px;background:var(--card);border:1px solid var(--card-border);border-radius:10px;font-size:.88rem;transition:.2s}
.related-grid a:hover{border-color:var(--primary);transform:translateY(-1px)}

.unit-info{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:20px;margin:14px 0}
.unit-info h3{margin-bottom:10px;font-size:1.1rem}
.unit-info h4{margin-top:14px;margin-bottom:6px;font-size:.95rem;color:var(--primary)}
.unit-info p{color:var(--muted);font-size:.92rem;line-height:1.7}

/* CATEGORY PAGE */
.units-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}
.units-grid a{padding:12px;background:var(--card);border:1px solid var(--card-border);border-radius:10px;font-size:.9rem;transition:.2s}
.units-grid a:hover{border-color:var(--primary);background:rgba(79,124,255,.08)}

/* FOOTER */
.site-footer{border-top:1px solid var(--card-border);background:var(--bg-2);padding:32px 0 20px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px;margin-bottom:24px}
.footer-grid h5{margin-bottom:10px;font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.footer-grid a{display:block;padding:4px 0;font-size:.88rem;color:var(--muted)}
.footer-grid a:hover{color:var(--text)}
.footer-bottom{padding-top:16px;border-top:1px solid var(--card-border);text-align:center;color:var(--muted);font-size:.85rem}

/* TOAST */
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--bg-2);border:1px solid var(--card-border);padding:11px 20px;border-radius:10px;box-shadow:var(--shadow);opacity:0;transition:.3s;z-index:200;font-size:.9rem}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* MOBILE */
@media(max-width:860px){
  .desktop-only{display:none!important}
  .mobile-only{display:flex}
  .header-inner{height:56px;gap:10px}
  .logo-text{font-size:1.15rem}
  .container{padding:0 14px}
  main{padding:14px 0 32px}
  .hero{padding:24px 0 18px}
  .hero p{font-size:.94rem;margin-bottom:18px}
  .hero-search input{height:48px;font-size:.95rem}
  section.block{margin:24px 0}
  section.block h2{font-size:1.2rem;margin-bottom:12px}
  .category-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .category-card{padding:14px}
  .converter-card{padding:16px}
  .conv-row{grid-template-columns:1fr;gap:10px}
  .conv-field input,.conv-field select{height:44px}
  .swap-row{margin:6px 0}
  .swap-btn{transform:rotate(90deg)}
  .swap-btn:hover{transform:rotate(270deg)}
  .ad-slot{padding:18px;margin:14px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:18px}
  .conv-table th,.conv-table td{padding:9px 10px;font-size:.83rem}
  .units-grid{grid-template-columns:1fr 1fr}
  .related-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:420px){
  .category-grid{grid-template-columns:1fr 1fr}
  .units-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}

/* ALL TOOLS PAGE */
.at-hero{padding:8px 0 4px}
.at-search-wrap{margin:18px 0 6px;position:relative}
.at-search-wrap input{width:100%;height:54px;padding:0 22px;border-radius:14px;background:var(--card);border:1px solid var(--card-border);font-size:1rem;outline:none;transition:.2s}
.at-search-wrap input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(79,124,255,.18)}
.at-search-stats{text-align:center;color:var(--muted);font-size:.82rem;margin-top:8px;transition:.3s}
.at-filter-count{font-size:.82rem;font-weight:400}
.at-category-block{margin-bottom:36px;padding-bottom:30px;border-bottom:1px solid var(--card-border)}
.at-category-block:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.at-cat-header{margin-bottom:14px}
.at-cat-title{display:flex;align-items:center;gap:14px}
.at-cat-title:hover h3{color:var(--primary)}
.at-cat-icon{font-size:1.8rem;width:52px;height:52px;flex-shrink:0;display:grid;place-items:center;background:var(--card);border:1px solid var(--card-border);border-radius:12px;transition:.2s}
.at-cat-title:hover .at-cat-icon{border-color:var(--primary)}
.at-cat-title h3{font-size:1.1rem;font-weight:700;margin-bottom:3px}
.at-links-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:8px}
.at-conv-link{padding:10px 14px;background:var(--card);border:1px solid var(--card-border);border-radius:10px;font-size:.875rem;transition:.2s;line-height:1.35}
.at-conv-link:hover{border-color:var(--primary);background:rgba(79,124,255,.08);transform:translateY(-1px)}
.at-no-results{padding:48px 20px;text-align:center;color:var(--text);background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);margin-top:12px}
.at-no-results p{font-size:1rem}
@media(max-width:860px){
  .at-links-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:7px}
  .at-conv-link{font-size:.83rem;padding:9px 12px}
  .at-search-wrap input{height:48px;font-size:.95rem}
}
@media(max-width:480px){
  .at-links-grid{grid-template-columns:1fr 1fr}
  .at-cat-icon{width:42px;height:42px;font-size:1.4rem}
  .at-cat-title h3{font-size:1rem}
}

/* SCROLLBAR */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--card-border);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--primary)}

/* ── HOMEPAGE CATEGORY GROUPS ── */
.home-group{margin-bottom:48px}
.home-group:last-of-type{margin-bottom:0}
.home-group-heading{display:flex;align-items:center;gap:10px;font-size:1.15rem;font-weight:700;color:var(--text);margin:0 0 18px;padding-bottom:12px;border-bottom:1px solid var(--card-border)}
.home-group-icon{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,rgba(99,102,241,.15),rgba(167,139,250,.12));font-size:1.1rem;flex-shrink:0}

/* ── EXPLORE ALL CTA ── */
.explore-all-cta{display:flex;align-items:center;gap:16px;width:100%;margin-top:20px;padding:20px 24px;border-radius:16px;text-decoration:none;color:var(--text);background:var(--card);border:2px solid transparent;background-clip:padding-box;position:relative;transition:transform .2s,box-shadow .2s;overflow:hidden}
.explore-all-cta::before{content:'';position:absolute;inset:0;border-radius:16px;padding:2px;background:linear-gradient(135deg,var(--primary),var(--accent,#a78bfa));-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.explore-all-cta:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(99,102,241,.25)}
.explore-all-cta:hover .explore-all-arrow{transform:translateX(4px)}
.explore-all-icon{font-size:2rem;flex-shrink:0;width:52px;height:52px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(99,102,241,.15),rgba(167,139,250,.15));border-radius:12px}
.explore-all-text{flex:1;min-width:0}
.explore-all-text strong{display:block;font-size:1rem;font-weight:700;color:var(--text);margin-bottom:3px}
.explore-all-text span{font-size:.82rem;color:var(--muted)}
.explore-all-arrow{font-size:1.4rem;color:var(--primary);flex-shrink:0;transition:transform .2s;font-weight:700}

/* ---- CATEGORY BLOCK HIGHLIGHT (from ?category= param) ---- */
.cat-block-highlighted{scroll-margin-top:80px}
@keyframes catPulse{0%{box-shadow:0 0 0 0 rgba(99,102,241,.4)}70%{box-shadow:0 0 0 12px rgba(99,102,241,0)}100%{box-shadow:0 0 0 0 rgba(99,102,241,0)}}
.cat-block-pulse{animation:catPulse 1.2s ease 2;border-radius:12px;outline:2px solid var(--primary);outline-offset:4px}
.cooking-card{border-color:rgba(255,165,0,0.25);background:linear-gradient(135deg,var(--card),rgba(255,140,0,0.04))}
[data-theme="light"] .cooking-card{border-color:rgba(234,88,12,0.2);background:linear-gradient(135deg,var(--card),rgba(234,88,12,0.03))}
.cooking-tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:4px}
.cooking-tool-card{display:flex;align-items:flex-start;gap:16px;padding:20px;background:var(--card);border:1px solid var(--card-border);border-radius:14px;text-decoration:none;color:var(--text);transition:border-color .2s,transform .15s,box-shadow .2s}
.cooking-tool-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 6px 24px rgba(0,0,0,.15)}
.cooking-tool-card h3{font-size:.95rem;font-weight:700;margin:0 0 4px;color:var(--text)}
.cooking-tool-card p{font-size:.82rem;color:var(--muted);margin:0;line-height:1.5}
.cooking-tool-icon{font-size:2rem;flex-shrink:0;width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--bg-2);border-radius:12px}
.how-many-hero{text-align:center;padding:36px 20px 28px;background:var(--card);border:1px solid var(--card-border);border-radius:18px;margin-bottom:0}
.how-many-hero h1{font-size:clamp(1.3rem,4vw,2rem);font-weight:800;margin-bottom:20px;color:var(--text)}
.how-many-answer{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.hm-from{font-size:clamp(1.1rem,3vw,1.4rem);font-weight:600;color:var(--muted)}
.hm-eq{font-size:1.8rem;font-weight:300;color:var(--muted)}
.hm-to{font-size:clamp(1.5rem,5vw,2.4rem);font-weight:800;color:var(--primary)}