:root{--ink:#14202e;--ink2:#46576a;--mute:#6f7f90;--bg:#f7f8fa;--card:#fff;--line:#e3e8ee;--acc:#0a8f73;--acc-d:#07705a;--navy:#0d1b2a;--r:12px;
--serif:'EB Garamond',Georgia,'Times New Roman',serif;--sans:'Source Sans 3',system-ui,-apple-system,'Segoe UI',sans-serif}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:100px;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);font-size:17px;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.18;letter-spacing:-.005em}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--acc);z-index:200}

/* header */
.topstrip{background:var(--navy);color:#9fb0c1;font-size:13px}
.topstrip .wrap{display:flex;justify-content:space-between;height:34px;align-items:center}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100}
.bar{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .mark{width:34px;height:34px;border-radius:8px;background:var(--navy);color:#fff;display:grid;place-items:center;font:600 22px var(--serif)}
.brand .word{font:600 27px var(--serif);color:var(--navy);letter-spacing:-.01em}
.brand .word em{font-style:normal;color:var(--acc)}
.brand.light .mark{background:var(--acc)}
.brand.light .word{color:#fff}
.brand.light .word em{color:#5fd6b8}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;flex:1;gap:20px}
.nav{display:flex;gap:2px}
.nav a{font-size:16px;font-weight:500;color:var(--ink2);padding:8px 14px;border-radius:8px;position:relative;transition:color .15s,background .15s}
.nav a:hover{background:#eef2f5;color:var(--ink)}
.nav a.on{color:var(--acc-d)}
.nav a.on::after{content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;background:var(--acc);border-radius:2px}
.search{display:flex;border:1px solid var(--line);border-radius:99px;overflow:hidden;background:#f3f5f8}
.search input{border:0;background:transparent;padding:9px 6px 9px 16px;font:15px var(--sans);width:190px;outline:0;color:var(--ink)}
.search button{border:0;background:var(--navy);color:#fff;padding:0 16px;font:500 14px var(--sans);cursor:pointer}
.search button:hover{background:var(--acc-d)}
.search:focus-within{border-color:var(--acc);background:#fff}
.burger{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;margin-left:auto}
.burger span{display:block;width:22px;height:2px;background:var(--navy);border-radius:2px;transition:.2s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* hero */
.hero{background:var(--navy);color:#fff;padding:56px 0 78px;background-image:radial-gradient(800px 320px at 88% -20%,rgba(10,143,115,.42),transparent)}
.hero h1{font-size:clamp(32px,5.2vw,56px);font-weight:600;max-width:800px;line-height:1.1}
.lead{color:#b9c6d4;font-size:19px;max-width:620px;margin-top:16px}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.chip{border:1px solid rgba(255,255,255,.28);padding:8px 20px;border-radius:99px;font-size:15.5px;font-weight:500;transition:.15s}
.chip:hover{background:var(--acc);border-color:var(--acc)}

/* cards */
.tag{display:inline-block;font-size:14px;font-weight:600;color:var(--acc-d);margin-bottom:8px}
.tag:hover{text-decoration:underline}
.meta{font-size:14px;color:var(--mute)}
.top-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:28px;margin-top:-44px;position:relative}
.feature{background:var(--card);border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:0 12px 32px rgba(13,27,42,.09)}
.feature-img{display:block;aspect-ratio:16/8;overflow:hidden}
.feature-img img,.feature-img .ph{width:100%;height:100%;object-fit:cover}
.feature-body{padding:24px 28px 28px}
.feature h2{font-size:35px;margin-bottom:10px}
.feature h2 a:hover,.card h3 a:hover{color:var(--acc-d)}
.feature p{color:var(--ink2);margin-bottom:12px;font-size:18px}
.latest{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;align-self:start;box-shadow:0 12px 32px rgba(13,27,42,.06)}
.latest h3{font-size:22px;margin-bottom:6px}
.mini{display:block;padding:14px 0;border-top:1px solid var(--line)}
.mini:first-of-type{border-top:0}
.mini strong{display:block;font:600 19px/1.3 var(--serif);margin:3px 0}
.mini:hover strong{color:var(--acc-d)}
.mini-cat{font-size:13.5px;font-weight:600;color:var(--acc-d)}
.block{padding-top:58px}
.block-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:22px;border-bottom:2px solid var(--ink);padding-bottom:12px;gap:16px}
.block-head h2{font-size:32px}
.block-head p{color:var(--mute);font-size:15.5px;margin-top:2px}
.more{font-weight:600;font-size:15px;color:var(--acc-d);white-space:nowrap}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(13,27,42,.1)}
.card-img{aspect-ratio:16/10;overflow:hidden;display:block}
.card-img img,.card-img .ph{width:100%;height:100%;object-fit:cover}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.card h3{font-size:23px;margin-bottom:8px}
.card p{color:var(--ink2);font-size:16px;margin-bottom:12px;flex:1}
.ph{display:grid;place-items:center;background:linear-gradient(135deg,#0d1b2a,#16405a)}
.ph span{font:600 76px var(--serif);color:rgba(255,255,255,.88)}
.ph-ai{background:linear-gradient(135deg,#0d1b2a,#0a8f73)}
.ph-cars{background:linear-gradient(135deg,#1b2a41,#a8362a)}
.ph-bikes{background:linear-gradient(135deg,#1a1a2e,#c9830c)}
.ph-ev{background:linear-gradient(135deg,#0d1b2a,#2a6fb8)}
.empty{padding:70px 20px;text-align:center;color:var(--mute)}
.cat-head{background:var(--navy);color:#fff;padding:40px 0 46px}
.cat-head h1{font-size:clamp(34px,4.5vw,52px)}
.crumbs{font-size:14.5px;color:var(--mute)}
.crumbs a:hover{color:var(--acc-d);text-decoration:underline}
.cat-head .crumbs{color:#9fb0c1;margin-bottom:10px}
.crumbs-row{padding-top:22px}

/* article + left TOC */
.article-layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:60px;padding-top:20px;padding-bottom:20px;align-items:start}
.toc{position:sticky;top:96px;max-height:calc(100vh - 116px);overflow:auto}
.toc summary{font:600 19px var(--serif);margin-bottom:12px;cursor:pointer;list-style:none;display:flex;justify-content:space-between}
.toc summary::-webkit-details-marker{display:none}
.toc ul{list-style:none;padding:0;border-left:2px solid var(--line)}
.toc li a{display:block;padding:9px 14px;margin-left:-2px;border-left:3px solid transparent;font-size:15.5px;color:var(--ink2);line-height:1.35;transition:.15s}
.toc li.sub a{padding-left:28px;font-size:14.5px}
.toc li a:hover{background:#eaf0f4;color:var(--ink)}
.toc li a.active{border-left-color:var(--acc);background:#e2f4ee;color:var(--ink);font-weight:600}
.article{max-width:760px;min-width:0;padding-bottom:20px}
.article.no-toc{margin:0 auto}
.article h1{font-size:clamp(34px,4.6vw,52px);margin:6px 0 12px;font-weight:600}
.cover{width:100%;border-radius:var(--r);margin:24px 0 8px;aspect-ratio:16/8;object-fit:cover}
.prose{font-size:19.5px;line-height:1.75;color:#1c2937;margin-top:22px;overflow-wrap:break-word}
.prose h2{font-size:36px;margin:46px 0 12px;color:var(--ink)}
.prose h3{font-size:27px;margin:30px 0 8px}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:26px}
.prose li{margin-bottom:6px}
.prose a{color:var(--acc-d);text-decoration:underline}
.prose img{border-radius:10px;margin:24px auto}
.prose pre{overflow:auto;background:#101c2a;color:#e6edf3;padding:14px;border-radius:10px;font-size:15px}
.prose blockquote{border-left:4px solid var(--acc);padding:6px 20px;margin:24px 0;color:var(--ink2);font-style:italic;background:#eef6f3;border-radius:0 10px 10px 0}
.narrow{max-width:800px}

/* footer */
.site-footer{background:var(--navy);color:#b3c0cd;margin-top:80px;padding-top:50px}
.foot{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:34px}
.foot p{margin-top:12px;max-width:380px;font-size:16px}
.foot h4{color:#fff;margin-bottom:10px;font-size:21px}
.foot a:not(.brand){display:block;padding:4px 0;font-size:16px}
.foot a:not(.brand):hover{color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;padding-bottom:24px;font-size:14px}

/* admin */
body.admin{background:#eef2f6}
.ad-top{background:var(--navy);display:flex;justify-content:space-between;align-items:center;padding:8px 24px;min-height:62px;flex-wrap:wrap;gap:6px}
.ad-top .brand .word{color:#fff;font-size:22px}
.ad-top nav{display:flex;flex-wrap:wrap}
.ad-top nav a{color:#c5d0dc;font-size:15px;padding:8px 12px;border-radius:8px}
.ad-top nav a:hover{background:rgba(255,255,255,.1);color:#fff}
.ad-wrap{max-width:1150px;margin:28px auto;padding:0 20px 60px}
.ad-wrap h1{font-size:34px;margin-bottom:18px}
.ad-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;gap:10px;flex-wrap:wrap}
.btn{display:inline-block;background:var(--acc);color:#fff;border:0;padding:11px 20px;border-radius:10px;font:600 16px var(--sans);cursor:pointer}
.btn:hover{background:var(--acc-d)}
.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line);width:100%;margin-bottom:10px}
.btn.big{width:100%;padding:14px;font-size:17px;margin-top:6px}
.table-scroll{overflow-x:auto}
.ad-table{width:100%;min-width:560px;background:#fff;border-collapse:collapse;border:1px solid var(--line);margin-bottom:26px}
.ad-table th,.ad-table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:15.5px}
.ad-table th{background:#f6f8fa;font-size:13.5px;color:var(--mute)}
.acts{display:flex;gap:14px;align-items:center}
.acts a{color:var(--acc-d);font-weight:500}
.acts form{display:inline}
.link{background:none;border:0;cursor:pointer;font:500 15.5px var(--sans)}
.bad{color:#c0392b}
.pill{background:#e6e9ee;padding:3px 10px;border-radius:99px;font-size:13px;font-weight:600}
.pill.live{background:#d8f3ea;color:var(--acc-d)}
.alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:15.5px}
.alert.ok{background:#d8f3ea;color:#065f46}
.alert.bad{background:#fde8e6;color:#9b2c20}
.ad-form label{display:block;font-size:14.5px;font-weight:600;margin-bottom:16px;color:var(--ink2)}
.ad-form input:not([type=checkbox]),.ad-form textarea,.ad-form select,.login-box input{display:block;width:100%;margin-top:6px;padding:11px 13px;border:1px solid #cfd8e1;border-radius:9px;font:16px var(--sans);background:#fff}
.ad-form input:focus,.ad-form textarea:focus,.ad-form select:focus,.login-box input:focus{outline:2px solid var(--acc);border-color:var(--acc)}
.cols{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:26px;align-items:start}
.side{background:#fff;padding:20px;border-radius:12px;border:1px solid var(--line);position:sticky;top:16px}
.side .check{display:flex;gap:8px;align-items:center}
.prev{border-radius:10px;margin-bottom:16px;max-height:160px;width:100%;object-fit:cover}
.tip{background:#fff7e0;border:1px solid #f1dd9b;padding:10px 14px;border-radius:9px;font-size:14.5px;margin-bottom:10px}
.narrow-form{background:#fff;padding:24px;border-radius:12px;max-width:520px;border:1px solid var(--line)}
.narrow-form h2{font-size:26px;margin-bottom:14px}
#editor{height:480px;background:#fff;font-size:17px}
#toolbar{background:#fff}
.txtbtn{width:auto!important;font-size:13px;font-weight:600;color:var(--acc-d)}
.login{display:grid;place-items:center;min-height:100vh;padding:16px}
.login-box{background:#fff;padding:34px;border-radius:16px;width:min(390px,100%);border:1px solid var(--line);box-shadow:0 14px 40px rgba(13,27,42,.1)}
.login-box .brand{margin-bottom:16px}
.login-box h1{font-size:32px;margin-bottom:16px}
.login-box label{display:block;font-size:14.5px;font-weight:600;margin-bottom:14px}
.login-box .btn{width:100%}

/* tablet */
@media(max-width:1000px){
 .search input{width:130px}
 .nav a{padding:8px 10px}
}
@media(max-width:900px){
 .top-grid{grid-template-columns:1fr;margin-top:-34px}
 .grid{grid-template-columns:1fr 1fr}
 .article-layout{grid-template-columns:1fr;gap:10px}
 .toc{position:static;max-height:none;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
 .toc summary::after{content:"+";font:500 24px/1 var(--sans);color:var(--acc-d)}
 .toc details[open] summary::after{content:"\2212"}
 .toc details[open] summary{margin-bottom:12px}
 .toc ul{max-height:50vh;overflow:auto}
 .cols{grid-template-columns:1fr}
 .side{position:static}
}
/* mobile */
@media(max-width:820px){
 .burger{display:flex}
 .bar{height:64px}
 .nav-wrap{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 14px 24px rgba(13,27,42,.1);flex-direction:column;align-items:stretch;padding:12px 20px 20px;gap:14px;max-height:calc(100vh - 100px);overflow:auto}
 .nav-wrap.open{display:flex}
 .nav{flex-direction:column}
 .nav a{padding:13px 8px;font-size:18px;border-bottom:1px solid var(--line);border-radius:0}
 .nav a.on::after{display:none}
 .search input{width:100%;font-size:16px;padding:12px 6px 12px 16px}
 .search button{padding:0 20px}
 .search{width:100%}
}
@media(max-width:640px){
 body{font-size:16.5px}
 .wrap{padding:0 16px}
 .topstrip .today{display:none}
 .topstrip .wrap{justify-content:center}
 .brand .word{font-size:24px}
 .hero{padding:36px 0 64px}
 .lead{font-size:17.5px}
 .grid{grid-template-columns:1fr;gap:18px}
 .feature-body{padding:18px 18px 22px}
 .feature h2{font-size:28px}
 .latest{padding:18px}
 .block{padding-top:42px}
 .block-head h2{font-size:28px}
 .foot{grid-template-columns:1fr;gap:26px}
 .prose{font-size:18.5px;line-height:1.7}
 .prose h2{font-size:30px;margin-top:36px}
 .prose h3{font-size:24px}
 .cover{aspect-ratio:16/10;margin-top:18px}
 .ad-top{padding:8px 14px}
 .ad-wrap{padding:0 14px 50px}
 .ad-wrap h1{font-size:28px}
 #editor{height:380px}
 .acts{flex-wrap:wrap;gap:10px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card{transition:none}}