/* ============================================================
   searchengine.forum — community for SEOs & developers
   GOOGLE / MATERIAL look: white, Google blue, Roboto,
   app bar + pill search, left nav rail, #dadce0 borders,
   recommended-answer + Product-Expert level badges.
   ============================================================ */
:root{
  --blue:#1a73e8;
  --blue-d:#1558b0;
  --blue-tint:#e8f0fe;
  --g900:#202124;
  --g700:#3c4043;
  --g600:#5f6368;
  --g500:#80868b;
  --g300:#dadce0;
  --g200:#e8eaed;
  --g100:#f1f3f4;
  --g50:#f8f9fa;
  --green:#188038;
  --green-tint:#e6f4ea;
  --red:#d93025;
  --yellow:#f9ab00;
  --bg:#ffffff;
  --shadow1:0 1px 2px rgba(60,64,67,.1),0 1px 3px rgba(60,64,67,.08);
  --shadow2:0 1px 3px rgba(60,64,67,.15),0 4px 8px rgba(60,64,67,.1);
  --font:"Roboto","Helvetica Neue",Arial,sans-serif;
  --gsans:"Google Sans","Roboto","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--g900);font-family:var(--font);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}

.ic{width:20px;height:20px;display:inline-block;vertical-align:middle;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.ic-fill{fill:currentColor;stroke:none}
.ic-sm{width:16px;height:16px}

/* ---------- app bar ---------- */
.appbar{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--g300)}
.appbar .wrap{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand:hover{text-decoration:none}
.brand .mk{width:30px;height:30px}
.brand .wm{font-family:var(--gsans);font-size:21px;font-weight:500;color:var(--g700);letter-spacing:-.2px}
.brand .wm .tld{color:var(--blue)}
.gsearch{flex:1;max-width:640px;position:relative;margin:0 auto}
.gsearch .ic{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--g600);width:20px;height:20px}
.gsearch input{width:100%;height:46px;border:1px solid transparent;background:var(--g100);border-radius:24px;padding:0 18px 0 48px;font-size:15px;font-family:inherit;color:var(--g900)}
.gsearch input::placeholder{color:var(--g600)}
.gsearch input:focus{outline:none;background:var(--bg);box-shadow:var(--shadow2);border-color:transparent}
.ab-actions{display:flex;align-items:center;gap:12px;flex:none}
@media(max-width:760px){.gsearch{display:none}}

/* ---------- layout: left rail + content ---------- */
.shell{display:flex;gap:0;align-items:flex-start;padding:0 0 60px}
.rail{width:256px;flex:none;padding:18px 8px 18px 0;position:sticky;top:64px}
.content{flex:1;min-width:0;padding:24px 0 24px 32px;border-left:1px solid var(--g200)}
@media(max-width:900px){.shell{flex-direction:column}.rail{width:100%;position:static;display:flex;flex-wrap:wrap;gap:4px;padding:10px 0}.content{border-left:0;padding:18px 0}}

.navitem{display:flex;align-items:center;gap:16px;padding:9px 22px;border-radius:0 22px 22px 0;color:var(--g700);font-size:14px;font-weight:500;cursor:pointer}
.navitem .ic{color:var(--g600);width:20px;height:20px}
.navitem:hover{background:var(--g100);text-decoration:none}
.navitem.active{background:var(--blue-tint);color:var(--blue-d)}
.navitem.active .ic{color:var(--blue-d)}
.nav-h{font-size:11px;font-weight:500;text-transform:uppercase;letter-spacing:.8px;color:var(--g600);padding:14px 22px 6px}
.nav-sep{height:1px;background:var(--g200);margin:8px 16px}
@media(max-width:900px){.navitem{border-radius:20px;padding:8px 14px}.nav-h,.nav-sep{display:none}}

.crumb{font-size:13px;color:var(--g600);margin-bottom:18px}
.crumb a{color:var(--g600)}.crumb a:hover{color:var(--blue)}
.crumb .s{margin:0 6px;color:var(--g300)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--gsans);font-size:14px;font-weight:500;cursor:pointer;border-radius:4px;padding:9px 16px;border:1px solid transparent;transition:.12s}
.btn .ic{width:18px;height:18px}
.btn-filled{background:var(--blue);color:#fff}
.btn-filled:hover{background:var(--blue-d);text-decoration:none;box-shadow:var(--shadow1)}
.btn-tonal{background:var(--blue-tint);color:var(--blue-d)}
.btn-tonal:hover{background:#d2e3fc;text-decoration:none}
.btn-text{background:transparent;color:var(--blue)}
.btn-text:hover{background:var(--g100);text-decoration:none}
.btn-out{background:#fff;border-color:var(--g300);color:var(--blue)}
.btn-out:hover{background:var(--g50);text-decoration:none}
.btn-sm{padding:7px 12px;font-size:13px}

/* ---------- page head ---------- */
.phead{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px}
.phead h1{font-family:var(--gsans);font-size:24px;font-weight:400;margin:0 0 4px;color:var(--g900)}
.phead p{margin:0;color:var(--g600);font-size:14px}

/* ---------- card ---------- */
.card{background:#fff;border:1px solid var(--g300);border-radius:8px;margin-bottom:16px;overflow:hidden}
.card-pad{padding:18px 20px}
.sec-title{font-family:var(--gsans);font-size:16px;font-weight:500;color:var(--g900);margin:24px 0 12px;display:flex;align-items:center;justify-content:space-between}

/* ---------- category list ---------- */
.catrow{display:flex;gap:16px;align-items:center;padding:16px 20px;border-bottom:1px solid var(--g200)}
.catrow:last-child{border-bottom:0}
.catrow:hover{background:var(--g50)}
.catrow .cic{width:40px;height:40px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;background:var(--blue-tint);color:var(--blue)}
.catrow .cb{flex:1;min-width:0}
.catrow .cb h3{margin:0 0 3px;font-size:15px;font-weight:500;font-family:var(--gsans)}
.catrow .cb h3 a{color:var(--g900)}
.catrow .cb p{margin:0;color:var(--g600);font-size:13px}
.catrow .cn{flex:none;text-align:right;font-size:13px;color:var(--g600);width:96px}
.catrow .cn b{display:block;color:var(--g900);font-size:16px;font-weight:500}
@media(max-width:560px){.catrow .cn{display:none}}

/* ---------- thread list ---------- */
.tlist{border:1px solid var(--g300);border-radius:8px;overflow:hidden;background:#fff}
.titem{display:flex;gap:14px;align-items:flex-start;padding:14px 18px;border-bottom:1px solid var(--g200)}
.titem:last-child{border-bottom:0}
.titem:hover{background:var(--g50)}
.titem .av{flex:none}
.titem .tb{flex:1;min-width:0}
.titem .tb .tt{font-size:15px;font-weight:500;font-family:var(--gsans);color:var(--g900);display:block;margin-bottom:3px}
.titem .tb .tt:hover{color:var(--blue);text-decoration:none}
.titem .tb .tm{font-size:12.5px;color:var(--g600)}
.titem .tb .tm a{color:var(--g600)}
.titem .tr{flex:none;text-align:right;font-size:12.5px;color:var(--g600);min-width:84px}
.titem .tr b{display:block;color:var(--g900);font-size:15px;font-weight:500}
.titem .rec{display:inline-flex;align-items:center;gap:4px;color:var(--green);font-size:12px;font-weight:500;margin-top:4px}
.titem .rec .ic{width:14px;height:14px}
@media(max-width:560px){.titem .tr{display:none}}

/* chips */
.chip{display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--g700);background:#fff;border:1px solid var(--g300);border-radius:8px;padding:2px 9px;margin-right:6px}
.chip.solid{background:var(--g100);border-color:transparent}
.chip .ic{width:13px;height:13px}
.chip-pin{color:var(--blue);border-color:#c6dafc;background:var(--blue-tint)}
.chip-hot{color:var(--red);border-color:#f6cfcb}

/* ---------- avatars ---------- */
.av{width:36px;height:36px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:500;font-size:15px;font-family:var(--gsans)}
.av.lg{width:80px;height:80px;font-size:34px}
.av.sm{width:28px;height:28px;font-size:12px}

/* ---------- PE level badge ---------- */
.lvl{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:500;border-radius:10px;padding:1px 8px;border:1px solid;white-space:nowrap}
.lvl .ic{width:11px;height:11px}
.lvl-1{color:#a5673f;border-color:#e3cdbd;background:#f7efe9}      /* Bronze */
.lvl-2{color:#5f6368;border-color:var(--g300);background:var(--g50)} /* Silver */
.lvl-3{color:#b06000;border-color:#f6dca0;background:#fef7e0}      /* Gold */
.lvl-4{color:#00796b;border-color:#b2dfdb;background:#e0f2f1}      /* Platinum */
.lvl-5{color:#1558b0;border-color:#c6dafc;background:var(--blue-tint)} /* Diamond */

/* ---------- thread page ---------- */
.qhead{padding-bottom:16px;border-bottom:1px solid var(--g200);margin-bottom:8px}
.qhead h1{font-family:var(--gsans);font-size:22px;font-weight:400;margin:0 0 12px;color:var(--g900);line-height:1.3}
.poster{display:flex;gap:12px;align-items:center}
.poster .pn{font-size:14px;font-weight:500;color:var(--g900)}
.poster .pt{font-size:12.5px;color:var(--g600)}
.post-body{font-size:14.5px;color:var(--g700);margin:16px 0;line-height:1.65}
.post-body p{margin:0 0 12px}
.post-body code{font-family:"Roboto Mono",ui-monospace,Menlo,Consolas,monospace;background:var(--g100);border-radius:4px;padding:1px 5px;font-size:13px;color:var(--g900)}
.post-body pre{background:#202124;color:#e8eaed;border-radius:8px;padding:14px 16px;overflow:auto;font-family:"Roboto Mono",ui-monospace,Menlo,Consolas,monospace;font-size:13px;line-height:1.5;margin:0 0 12px}
.post-actions{display:flex;align-items:center;gap:6px;margin-top:6px}
.actbtn{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--g600);border:none;background:transparent;cursor:pointer;border-radius:18px;padding:6px 12px;font-family:var(--font)}
.actbtn:hover{background:var(--g100)}
.actbtn .ic{width:16px;height:16px}
.actbtn.up{font-weight:500}
.meta-line{display:flex;gap:16px;font-size:12.5px;color:var(--g600);margin-top:10px}

/* recommended answer */
.answer{border:1px solid var(--green);background:var(--green-tint);border-radius:8px;padding:16px 18px;margin:18px 0}
.answer .alabel{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-weight:500;font-size:13px;margin-bottom:10px}
.answer .alabel .ic{width:18px;height:18px}

/* replies */
.replies-h{font-family:var(--gsans);font-size:15px;font-weight:500;color:var(--g900);margin:22px 0 4px}
.reply{display:flex;gap:12px;padding:16px 0;border-top:1px solid var(--g200)}
.reply .rc{flex:1;min-width:0}
.reply .rhdr{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:5px}
.reply .rhdr .rn{font-size:13.5px;font-weight:500;color:var(--g900)}
.reply .rhdr .rt{font-size:12px;color:var(--g600)}
.reply .rbody{font-size:14px;color:var(--g700);line-height:1.6}
.reply .rbody p{margin:0 0 10px}
.reply .rbody code{font-family:"Roboto Mono",ui-monospace,Menlo,Consolas,monospace;background:var(--g100);border-radius:4px;padding:1px 5px;font-size:12.5px}
.reply .ra{display:flex;align-items:center;gap:4px;margin-top:6px}
.reply.nested{margin-left:48px}
.helpful{display:inline-flex;align-items:center;gap:4px;color:var(--green);font-size:12px;font-weight:500;margin-left:4px}
.helpful .ic{width:13px;height:13px}

/* ---------- paywall gate (thread) ---------- */
.pwrap{position:relative}
.pfade{position:absolute;left:0;right:0;bottom:0;height:230px;pointer-events:none;background:linear-gradient(180deg,rgba(255,255,255,0),rgba(255,255,255,.96) 62%,#fff 100%)}
.gate{border:1px solid var(--g300);border-radius:8px;box-shadow:var(--shadow2);padding:30px 26px;text-align:center;background:#fff;margin-top:10px}
.gate .gic{width:48px;height:48px;border-radius:50%;background:var(--blue-tint);color:var(--blue);display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
.gate .gic .ic{width:24px;height:24px}
.gate h3{font-family:var(--gsans);font-size:20px;font-weight:500;margin:0 0 8px}
.gate p{margin:0 auto 18px;max-width:440px;color:var(--g600);font-size:14px}
.gate .brow{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.gate .fine{font-size:12px;color:var(--g500);margin:14px 0 0}

/* ---------- info card / stats ---------- */
.kv{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--g200);font-size:13.5px}
.kv:last-child{border-bottom:0}
.kv span{color:var(--g600)}.kv b{color:var(--g900);font-weight:500}
.stat-row{display:flex;flex-wrap:wrap;gap:0;border:1px solid var(--g300);border-radius:8px;overflow:hidden}
.stat-row .s{flex:1;min-width:120px;padding:16px;text-align:center;border-left:1px solid var(--g200)}
.stat-row .s:first-child{border-left:0}
.stat-row .s b{display:block;font-family:var(--gsans);font-size:24px;font-weight:400;color:var(--blue)}
.stat-row .s span{font-size:12px;color:var(--g600)}

/* members grid */
.mgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.mcard{border:1px solid var(--g300);border-radius:8px;padding:20px;text-align:center}
.mcard:hover{box-shadow:var(--shadow1)}
.mcard .av{margin:0 auto 10px;width:56px;height:56px;font-size:24px}
.mcard h3{margin:0 0 8px;font-size:15px;font-weight:500;font-family:var(--gsans)}
.mcard h3 a{color:var(--g900)}
.mcard .rep{margin-top:10px;font-family:var(--gsans);font-size:18px;color:var(--blue)}
.mcard .rep span{display:block;font-size:11px;color:var(--g600)}

/* profile */
.phero{display:flex;gap:20px;align-items:center;flex-wrap:wrap;padding-bottom:18px;border-bottom:1px solid var(--g200)}
.phero .pi{flex:1;min-width:220px}
.phero h2{font-family:var(--gsans);font-size:24px;font-weight:400;margin:0 0 6px}
.phero .hd{font-size:13px;color:var(--g600)}
.phero .pr{margin-top:10px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.pscore{flex:none;text-align:center;background:var(--g50);border:1px solid var(--g300);border-radius:8px;padding:14px 22px}
.pscore .b{font-family:var(--gsans);font-size:30px;color:var(--blue)}
.pscore .l{font-size:11px;color:var(--g600);text-transform:uppercase;letter-spacing:.5px}
.ach-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.ach-grid{grid-template-columns:1fr}}
.ach{display:flex;gap:11px;align-items:center;border:1px solid var(--g300);border-radius:8px;padding:12px}
.ach .ai{width:36px;height:36px;border-radius:50%;background:var(--blue-tint);color:var(--blue);display:flex;align-items:center;justify-content:center;flex:none}
.ach b{font-size:13px;display:block}
.ach small{color:var(--g600);font-size:12px}

/* forms */
.agrid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media(max-width:780px){.agrid{grid-template-columns:1fr}}
.field{margin-bottom:16px}
.field label{display:block;font-size:12px;color:var(--g600);margin-bottom:6px}
.field input{width:100%;border:1px solid var(--g300);border-radius:4px;padding:12px 14px;font-size:15px;font-family:inherit;color:var(--g900)}
.field input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 1px var(--blue)}
.check{display:flex;gap:9px;align-items:flex-start;font-size:13px;color:var(--g600);margin-bottom:16px}
.divider{display:flex;align-items:center;gap:14px;color:var(--g500);font-size:12px;margin:18px 0}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--g200)}

/* prose */
.prose h2{font-family:var(--gsans);font-size:26px;font-weight:400;margin:0 0 12px}
.prose .lead{font-size:16px;color:var(--g700);margin:0 0 16px}
.prose h3{font-family:var(--gsans);font-size:17px;font-weight:500;margin:24px 0 8px}
.prose p{margin:0 0 12px;color:var(--g700);max-width:680px}
.prose ul{margin:0 0 12px;padding-left:20px;max-width:680px}
.prose li{margin-bottom:7px;color:var(--g700)}
.prose ul.ranks{list-style:none;padding-left:0}
.prose ul.ranks li{margin-bottom:10px}

/* footer */
.footer{border-top:1px solid var(--g300);background:var(--g50);margin-top:20px}
.footer .cols{display:flex;flex-wrap:wrap;gap:30px;justify-content:space-between;padding:32px 0 22px}
.footer h4{font-size:12px;text-transform:uppercase;letter-spacing:.6px;color:var(--g600);margin:0 0 10px}
.footer a{display:block;color:var(--g700);font-size:13px;padding:3px 0}
.footer a:hover{color:var(--blue)}
.footer .fb{max-width:280px}
.footer .fb .wm{font-family:var(--gsans);font-size:18px;font-weight:500;color:var(--g700);margin-bottom:8px}
.footer .fb .wm .tld{color:var(--blue)}
.footer .fb p{font-size:12.5px;color:var(--g600);margin:0;line-height:1.6}
.footer .fbar{border-top:1px solid var(--g200);padding:16px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--g600)}

.muted{color:var(--g600)}
.center{text-align:center}