:root {
  --bg:#0e0f11;--bg2:#161719;--bg3:#1e2023;--bg4:#26282c;
  --border:rgba(255,255,255,0.08);--border2:rgba(255,255,255,0.14);
  --text:#f0f0ef;--text2:#9a9b9d;--text3:#5f6063;
  --green:#4ade80;--gdim:rgba(74,222,128,0.12);--gborder:rgba(74,222,128,0.22);
  --yellow:#facc15;--purple:#a78bfa;--pdim:rgba(167,139,250,0.12);
  --accent:#4ade80;--accent2:#22c55e;
  --f:'DM Sans',sans-serif;--fm:'Space Mono',monospace;--tr:0.15s ease;
}
[data-theme="light"] {
  --bg:#f7f7f6;--bg2:#fff;--bg3:#f0f0ee;--bg4:#e8e8e5;
  --border:rgba(0,0,0,0.08);--border2:rgba(0,0,0,0.13);
  --text:#111112;--text2:#5a5a5c;--text3:#9a9a9c;
  --accent:#16a34a;--accent2:#15803d;--green:#16a34a;
  --gdim:rgba(22,163,74,0.1);--gborder:rgba(22,163,74,0.25);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--f);background:var(--bg);color:var(--text);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}ul{list-style:none}

/* NAV */
nav{position:sticky;top:0;z-index:100;background:var(--bg);border-bottom:1px solid var(--border);backdrop-filter:blur(12px)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:58px;display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-tiles{display:flex;gap:3px}
.tile{width:14px;height:14px;border-radius:4px;display:block}
.tile.t1{background:#4ade80}.tile.t2{background:#facc15}.tile.t3{background:#a78bfa}
.logo-text{font-family:var(--fm);font-size:13px;font-weight:700;letter-spacing:-0.02em;color:var(--text);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;flex:1;justify-content:center}
.nav-links a{font-size:13.5px;color:var(--text2);padding:6px 12px;border-radius:7px;transition:color var(--tr),background var(--tr)}
.nav-links a:hover{color:var(--text);background:var(--bg3)}
.nav-links a.active{color:var(--accent);background:var(--gdim);font-weight:500}
.nav-right{display:flex;gap:8px;flex-shrink:0}
.theme-btn{width:34px;height:34px;border-radius:8px;border:1px solid var(--border2);background:var(--bg3);cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text2);font-size:15px;transition:background var(--tr);line-height:1}
.theme-btn:hover{background:var(--bg4);color:var(--text)}

/* PAGE HERO */
.page-hero{max-width:1200px;margin:0 auto;padding:48px 24px 36px}
.breadcrumb{font-size:12.5px;color:var(--text3);margin-bottom:14px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.breadcrumb a{color:var(--accent);transition:opacity var(--tr)}
.breadcrumb a:hover{opacity:.8}
.bc-sep{color:var(--text3)}
h1{font-family:var(--fm);font-size:clamp(22px,4vw,40px);font-weight:700;letter-spacing:-0.03em;line-height:1.15;margin-bottom:14px}
.intro{font-size:15.5px;color:var(--text2);max-width:680px;line-height:1.75;margin-bottom:20px}
.intro strong{color:var(--text)}
.word-count-badge{display:inline-flex;align-items:center;gap:6px;font-family:var(--fm);font-size:11px;color:var(--accent);background:var(--gdim);border:1px solid var(--gborder);padding:4px 12px;border-radius:99px}
.wc-n{font-weight:700}

/* WORD GRID */
.word-section{max-width:1200px;margin:0 auto;padding:0 24px 48px}
.word-grid{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.word-chip{display:inline-flex;align-items:center;font-family:var(--fm);font-size:13px;font-weight:700;color:var(--text2);background:var(--bg2);border:1px solid var(--border);border-radius:8px;padding:6px 12px;letter-spacing:0.06em;transition:all var(--tr)}
.word-chip:hover{color:var(--accent);border-color:var(--gborder);background:var(--gdim)}
.word-meta{font-size:11.5px;color:var(--text3);font-family:var(--fm)}

/* RELATED LINKS */
.related-section{max-width:1200px;margin:0 auto;padding:0 24px 48px}
.sec-title{font-family:var(--fm);font-size:11px;letter-spacing:0.14em;text-transform:uppercase;color:var(--text3);margin-bottom:14px}
.related-grid{display:flex;flex-wrap:wrap;gap:6px}
.rel-link{font-size:12.5px;color:var(--text2);background:var(--bg2);border:1px solid var(--border);border-radius:8px;padding:6px 12px;transition:all var(--tr)}
.rel-link:hover{color:var(--text);border-color:var(--border2);background:var(--bg3)}

/* FAQ */
.faq-section{max-width:1200px;margin:0 auto;padding:0 24px 64px}
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:18px 22px}
.faq-q{font-weight:600;font-size:14.5px;color:var(--text);margin-bottom:8px}
.faq-a{font-size:13.5px;color:var(--text2);line-height:1.7}

/* FOOTER */
footer{background:var(--bg2);border-top:1px solid var(--border);padding:36px 24px 20px}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:32px;margin-bottom:28px}
.fbrand-logo{margin-bottom:10px}
.fbrand-desc{font-size:12px;color:var(--text3);max-width:220px;line-height:1.65}
.fcol-title{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:0.1em;color:var(--text3);margin-bottom:10px}
.fcol ul{display:flex;flex-direction:column;gap:6px}
.fcol a{font-size:13px;color:var(--text2);transition:color var(--tr)}
.fcol a:hover{color:var(--text)}
.footer-bottom{padding-top:18px;border-top:1px solid var(--border)}
.fcopy{font-size:11px;color:var(--text3);font-family:var(--fm)}

/* MOBILE */
@media(max-width:768px){.nav-links{display:none}h1{font-size:22px}}
@media(max-width:600px){
  .footer-top{grid-template-columns:1fr 1fr}.fbrand{grid-column:1/-1}
  .word-chip{font-size:11px;padding:5px 9px}
}