@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,500;0,600;0,700;1,600&family=IBM+Plex+Mono:wght@400;500;600&family=Inter:wght@400;500;600;700&display=swap');
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;color:#12181F;background:#FAF8F3;text-wrap:pretty;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit}
:root{
  --ink:#12181F; --accent:#0F7C93; --accent-soft:#EFEADC; --amber:#B8752A; --amber-soft:#FBF1E4;
  --text:#12181F; --text-sub:#454E59; --text-mute:#767F89;
  --paper:#FAF8F3; --panel:#FFFFFF; --line:#D8D4C7; --line-soft:#E7E4DA;
}
h1,h2,h3{font-family:'Poppins',sans-serif;font-weight:600;letter-spacing:-.01em;color:var(--text)}
.mono{font-family:'IBM Plex Mono',monospace}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px}

/* grid paper texture */
.gridpaper{background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);background-size:44px 44px}

.tag{font-family:'IBM Plex Mono',monospace;font-size:11.5px;font-weight:500;letter-spacing:.02em;color:var(--accent)}
.tag::before{content:"// "}

.btn{display:inline-flex;align-items:center;gap:9px;padding:14px 24px;font-family:'IBM Plex Mono',monospace;font-size:13.5px;font-weight:500;cursor:pointer;border:1.5px solid var(--ink);white-space:nowrap;border-radius:2px;transition:all .18s ease}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--accent);border-color:var(--accent)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-on-dark{border-color:rgba(250,248,243,0.4);color:var(--paper)}
.btn-on-dark:hover{background:rgba(250,248,243,0.12)}

/* corner brackets */
.bracketed{position:relative}
.bracketed::before,.bracketed::after,.bracketed .bl,.bracketed .br{position:absolute;width:16px;height:16px;border-color:var(--ink)}
.bracketed::before{content:"";top:-1px;left:-1px;border-top:2px solid var(--ink);border-left:2px solid var(--ink)}
.bracketed::after{content:"";top:-1px;right:-1px;border-top:2px solid var(--ink);border-right:2px solid var(--ink)}
.bracketed .bl{bottom:-1px;left:-1px;border-bottom:2px solid var(--ink);border-left:2px solid var(--ink)}
.bracketed .br{bottom:-1px;right:-1px;border-bottom:2px solid var(--ink);border-right:2px solid var(--ink)}

/* header */
header.site{position:sticky;top:0;z-index:50;background:rgba(250,248,243,0.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;max-width:1180px;margin:0 auto;padding:0 32px}
.nav-logo{display:flex;align-items:center;gap:10px;font-family:'Poppins',sans-serif;font-weight:600;font-size:19px;color:var(--ink)}
.nav-logo .mark{width:30px;height:30px;border:1.5px solid var(--ink);display:flex;align-items:center;justify-content:center;font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:12px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-family:'IBM Plex Mono',monospace;color:var(--text-sub);font-size:12.5px;letter-spacing:.01em}
.nav-links a:hover{color:var(--ink)}
.nav-actions{display:flex;align-items:center;gap:16px}
.nav-actions a.login{font-family:'IBM Plex Mono',monospace;color:var(--text-sub);font-size:12.5px}
.nav-actions a.login:hover{color:var(--ink)}
.nav-burger{display:none;background:none;border:none;cursor:pointer;color:var(--ink)}
@media (max-width:940px){
  .nav-links{display:none}
  .nav-burger{display:flex}
  .nav-links.mobile-open{display:flex;position:absolute;top:74px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:8px 32px 16px}
  .nav-links.mobile-open a{padding:12px 0;border-bottom:1px solid var(--line-soft);width:100%}
}

/* footer */
footer.site{background:var(--ink);color:rgba(250,248,243,0.8);padding:60px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(250,248,243,0.14)}
.foot-brand .nav-logo{color:#fff}
.foot-brand .mark{border-color:rgba(255,255,255,0.5)}
.foot-brand p{font-size:13px;color:rgba(250,248,243,0.5);margin-top:14px;line-height:1.7;max-width:270px}
.foot-col h4{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:rgba(250,248,243,0.4);margin-bottom:16px}
.foot-col a{display:block;font-size:13.5px;color:rgba(250,248,243,0.75);margin-bottom:12px}
.foot-col a:hover{color:#fff}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:20px;font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:rgba(250,248,243,0.35);flex-wrap:wrap;gap:10px}
.foot-social{display:flex;gap:14px}
.foot-social a:hover{color:#fff}

section{padding:88px 0}
.section-head{max-width:640px;margin-bottom:44px}
.section-head h2{font-size:34px;line-height:1.2;margin-top:14px}
.section-head p{font-size:15.5px;color:var(--text-sub);margin-top:14px;line-height:1.65;max-width:520px}
.bg-tint{background:var(--accent-soft)}
.bg-shade{background:#F1EEE3}
.bg-ink{background:var(--ink);color:var(--paper)}
.bg-ink .section-head h2,.bg-ink h2,.bg-ink h3,.bg-ink h4{color:#fff}
.bg-ink .section-head p,.bg-ink p{color:rgba(250,248,243,0.6)}
.bg-ink .tag{color:#5FD1E0}