/* FiberLink site — shared styles (landing + blog). Deep-navy radar system. */
:root{--navy-0:#020a14;--navy-1:#04101e;--navy-2:#0a2540;--navy-3:#0e3a5c;--cyan:#5fd9e0;--cyan-soft:#8fe9ee;--lime:#b4e82a;--peri:#9bb0f5;--ink:#eaf4ff;--ink-dim:#9fb6cc;--ink-faint:#5e7a93;--line:rgba(120,170,210,0.16);--card:linear-gradient(180deg,rgba(20,54,84,0.42),rgba(10,30,52,0.42))}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html,body{max-width:100%}
body{background:var(--navy-0);color:var(--ink);font-family:'Manrope',system-ui,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.55}
a{color:var(--cyan);text-decoration:none}
a:hover{color:var(--cyan-soft)}
/* height:auto is required alongside the width/height attributes on <img>:
   without it, max-width shrinks the width while the height attribute stays
   applied, stretching the image vertically. */
img{max-width:100%;height:auto;display:block}
.mono{font-family:'JetBrains Mono',ui-monospace,monospace}
.field{position:fixed;inset:0;z-index:0;pointer-events:none;background:radial-gradient(120% 90% at 82% -6%,#0f415f 0%,#0a2c49 30%,#061a2f 58%,#03101e 80%,#020a14 100%)}
.field::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(120,170,210,0.045) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,210,0.045) 1px,transparent 1px);background-size:64px 64px;-webkit-mask-image:radial-gradient(130% 120% at 60% 8%,#000 30%,transparent 82%);mask-image:radial-gradient(130% 120% at 60% 8%,#000 30%,transparent 82%)}
.wrap{position:relative;z-index:1;max-width:1160px;margin:0 auto;padding:0 40px}
.narrow{max-width:760px}
/* nav */
.topbar{position:sticky;top:0;z-index:30;background:rgba(4,16,30,0.74);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.topbar .row{max-width:1160px;margin:0 auto;padding:13px 40px;display:flex;align-items:center;gap:26px}
.lk{display:flex;align-items:center;gap:11px}
.lk img{width:34px;height:34px;border-radius:9px;box-shadow:0 0 0 1px rgba(143,233,238,0.2)}
.lk b{font-family:'Sora',sans-serif;font-weight:700;font-size:18.5px;letter-spacing:-0.01em;color:var(--ink)}
.lk b i{color:var(--cyan);font-style:normal}
.topbar nav{display:flex;gap:24px}
.topbar nav a{font-size:13.5px;font-weight:600;color:var(--ink-dim)}
.topbar nav a:hover{color:var(--ink)}
.spacer{flex:1}
.menu-btn{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:38px;height:38px;flex:none;border-radius:9px;border:1px solid var(--line);background:rgba(95,217,224,0.08);cursor:pointer;padding:0}
.menu-btn span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .18s,opacity .18s}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:900px){
  .topbar .row{position:relative;padding:11px 22px;gap:14px}
  .topbar nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:var(--navy-1);border-bottom:1px solid var(--line);box-shadow:0 20px 40px rgba(0,0,0,0.5);padding:6px 22px 14px;max-height:calc(100vh - 60px);overflow-y:auto}
  .topbar nav.open{display:flex}
  .topbar nav a{padding:13px 2px;border-bottom:1px solid rgba(120,170,210,0.12);font-size:15px}
  .menu-btn{display:flex}
  .wrap{padding:0 22px}
}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;border:none;cursor:pointer;font-family:'Manrope',sans-serif;font-weight:700;font-size:13.5px;padding:11px 18px;border-radius:11px;transition:box-shadow .14s,background .14s,transform .12s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--lime);color:#0a2210;box-shadow:0 8px 26px rgba(180,232,42,0.26)}
.btn-primary:hover{color:#0a2210;box-shadow:0 10px 32px rgba(180,232,42,0.42)}
.btn-ghost{background:rgba(95,217,224,0.10);color:var(--cyan-soft);border:1px solid rgba(95,217,224,0.24)}
.btn-ghost:hover{background:rgba(95,217,224,0.18);color:var(--cyan-soft)}
.play{display:inline-flex;align-items:center;gap:15px;padding:14px 26px 14px 20px;border-radius:15px;background:#f4f9ff;color:#0a2540;box-shadow:0 14px 40px rgba(0,0,0,0.42);transition:transform .14s,box-shadow .14s}
.play:hover{color:#0a2540;transform:translateY(-2px);box-shadow:0 18px 46px rgba(0,0,0,0.5)}
.play svg{width:28px;height:31px;flex:none}
.play small{display:block;font-size:10.5px;letter-spacing:0.13em;text-transform:uppercase;color:#4a5d72;font-weight:700;line-height:1}
.play strong{display:block;font-family:'Sora',sans-serif;font-size:21px;font-weight:700;letter-spacing:-0.01em;margin-top:3px}
/* type helpers */
.eyebrow{display:inline-flex;align-items:center;gap:11px;font-size:12px;font-weight:700;letter-spacing:0.3em;text-transform:uppercase;color:var(--cyan)}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 13px 2px rgba(180,232,42,0.7)}
h1,h2,h3,h4,h5{font-family:'Sora',sans-serif;letter-spacing:-0.028em;line-height:1.05;font-weight:700}
.kicker{font-family:'JetBrains Mono',monospace;font-size:11.5px;letter-spacing:0.14em;text-transform:uppercase;color:var(--cyan);font-weight:600}
.lead{font-size:19px;color:var(--ink-dim);font-weight:500;line-height:1.6}
section{padding:76px 0;border-top:1px solid var(--line)}
.sec-head{max-width:660px;margin-bottom:42px}
.sec-head h2{font-size:clamp(30px,4.2vw,44px);margin:16px 0 14px}
.sec-head p{color:var(--ink-dim);font-size:17px}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:940px){.g3{grid-template-columns:repeat(2,1fr)}.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px}
.card h3{font-size:20px;margin:16px 0 8px;font-weight:600}
.card p{font-size:15px;color:var(--ink-dim)}
.ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:rgba(95,217,224,0.10);border:1px solid rgba(95,217,224,0.22)}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{font-family:'JetBrains Mono',monospace;font-size:11.5px;letter-spacing:0.08em;color:var(--ink-dim);padding:7px 13px;border:1px solid var(--line);border-radius:100px;background:rgba(10,37,64,0.4)}
/* footer */
footer{border-top:1px solid var(--line);padding:60px 0 70px;position:relative;z-index:1}
.fcols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
@media(max-width:820px){.fcols{grid-template-columns:1fr 1fr}}
.fcols p{font-size:14px;color:var(--ink-dim);max-width:280px;margin-top:14px}
.fcols h5{font-size:13px;letter-spacing:0.1em;text-transform:uppercase;color:var(--ink-faint);font-family:'JetBrains Mono',monospace;font-weight:600;margin-bottom:14px}
.fcols ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.fcols li a{font-size:14.5px;color:var(--ink-dim);font-weight:500}
.fcols li a:hover{color:var(--cyan)}
.fbot{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--ink-faint)}
/* blog article */
.post-head{padding:64px 0 34px}
.post-head h1{font-size:clamp(34px,5.4vw,58px);margin:20px 0 20px;font-weight:800}
.post-meta{display:flex;gap:16px;flex-wrap:wrap;font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--ink-faint);letter-spacing:0.04em}
article{padding-bottom:20px}
article h2{font-size:29px;margin:44px 0 14px}
article h3{font-size:20px;margin:30px 0 10px;font-weight:600}
article p{font-size:17.5px;color:var(--ink-dim);margin-bottom:18px;text-wrap:pretty}
article strong{color:var(--ink);font-weight:700}
article ul,article ol{margin:0 0 20px 20px;color:var(--ink-dim);font-size:17.5px;display:flex;flex-direction:column;gap:10px}
article li{padding-left:4px}
article .callout{background:var(--card);border:1px solid var(--line);border-left:none;border-radius:18px;padding:24px 26px;margin:30px 0}
article .callout p{margin:0;font-size:16px}
table.budget{width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px}
table.budget th{text-align:left;font-family:'JetBrains Mono',monospace;font-size:11.5px;letter-spacing:0.1em;text-transform:uppercase;color:var(--cyan);font-weight:600;padding:12px 10px;border-bottom:1px solid var(--line)}
table.budget td{padding:12px 10px;border-bottom:1px solid var(--line);color:var(--ink-dim)}
table.budget td:last-child,table.budget th:last-child{text-align:right;font-family:'JetBrains Mono',monospace}
table.budget tr.total td{color:var(--ink);font-weight:700}
.cta-band{background:linear-gradient(140deg,rgba(14,58,92,0.6),rgba(6,22,38,0.6));border:1px solid var(--line);border-radius:24px;padding:44px;display:flex;align-items:center;gap:32px;flex-wrap:wrap;justify-content:space-between}
.cta-band h3{font-size:clamp(24px,3.2vw,34px);max-width:520px}
.cta-band p{color:var(--ink-dim);font-size:16px;margin-top:12px;max-width:520px}
.postcard{display:flex;flex-direction:column;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px;transition:border-color .16s,transform .16s}
.postcard:hover{border-color:rgba(95,217,224,0.4);transform:translateY(-3px)}
.postcard h3{font-size:20px;font-weight:600;color:var(--ink);letter-spacing:-0.02em;line-height:1.25}
.postcard p{font-size:14.5px;color:var(--ink-dim)}
.postcard .rd{font-family:'JetBrains Mono',monospace;font-size:11.5px;letter-spacing:0.1em;text-transform:uppercase;color:var(--cyan)}