/* Lighthouse Macro — Reading Room */
:root{--ocean:#2389BB;--dusk:#FF6723;--sky:#89CCFF;--sea:#00BB89;--venus:#FF2389;--doldrums:#898989;--fog:#D1D1D1;--deep:#123456;--ink:#123456;--paper:#FFFFFF;--ice:#D4E2EF;--glacier:#F4F7F9;--line:#E3E8EC;--body:#36424C;}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;color:var(--body);background:var(--glacier);line-height:1.6;-webkit-font-smoothing:antialiased;}
a{color:inherit;}
.wrap{max-width:1120px;margin:0 auto;padding:0 2rem;}
.mono{font-family:'Source Code Pro',monospace;letter-spacing:0.12em;text-transform:uppercase;font-size:0.72rem;color:#6b7280;}
.accent-bar{height:5px;background:linear-gradient(90deg,var(--ocean) 66%,var(--dusk) 66%);}
nav{background:rgba(255,255,255,0.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;}
.nav-inner{max-width:1120px;margin:0 auto;padding:0 2rem;display:flex;align-items:center;justify-content:space-between;height:62px;}
.nav-logo{font-family:'Montserrat',sans-serif;font-weight:800;font-size:1.05rem;color:var(--ink);text-decoration:none;letter-spacing:0.3px;}
.nav-logo span{color:var(--ocean);}
.nav-links{display:flex;gap:1.6rem;list-style:none;align-items:center;}
.nav-links a{font-size:0.82rem;font-weight:500;color:var(--body);text-decoration:none;transition:color .2s;}
.nav-links a:hover{color:var(--ocean);}
.nav-cta{background:var(--ocean);color:#fff !important;padding:0.45rem 1.1rem;border-radius:4px;font-weight:600 !important;}
.nav-cta:hover{filter:brightness(0.85);}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:0.4rem;}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.3s;}

/* badges */
.badge{font-family:'Source Code Pro',monospace;font-size:0.62rem;letter-spacing:0.1em;text-transform:uppercase;padding:0.18rem 0.5rem;border-radius:3px;font-weight:600;}
.badge.free{background:rgba(0,187,137,0.12);color:#0a7d5c;}
.badge.paid{background:rgba(35,137,187,0.12);color:var(--ocean);}

/* reading room hero */
.rr-hero{padding:4rem 0 2.6rem;background:radial-gradient(1100px 380px at 80% -10%,rgba(35,137,187,0.08),transparent 60%),var(--glacier);border-bottom:1px solid var(--line);}
.rr-hero h1{font-family:'Montserrat',sans-serif;font-weight:800;font-size:clamp(2.4rem,6vw,4rem);line-height:1.02;letter-spacing:-0.02em;color:var(--ink);margin:1rem 0 1.2rem;}
.rr-hero .blue{color:var(--ocean);}.rr-hero .dot{color:var(--dusk);}
.rr-hero p{font-size:1.08rem;max-width:680px;}
.rr-hero p a{color:var(--ocean);font-weight:600;text-decoration:none;}
.rr-actions{display:flex;gap:0.9rem;margin-top:1.8rem;flex-wrap:wrap;}
.rr-rss{border:1px solid var(--line);color:var(--ink);text-decoration:none;padding:0.7rem 1.3rem;border-radius:5px;font-weight:600;font-size:0.9rem;}
.rr-rss:hover{border-color:var(--ocean);color:var(--ocean);}
.rr-join{background:var(--dusk);color:#fff;text-decoration:none;padding:0.7rem 1.4rem;border-radius:5px;font-weight:600;font-size:0.9rem;}
.rr-join:hover{filter:brightness(0.92);}

/* section jump-nav */
.rr-jump{display:flex;flex-wrap:wrap;gap:0.6rem;margin-top:2rem;}
.rr-jump a{display:inline-flex;align-items:center;gap:0.5rem;border:1px solid var(--line);border-radius:999px;padding:0.4rem 0.5rem 0.4rem 0.9rem;text-decoration:none;font-size:0.82rem;font-weight:600;color:var(--ink);background:var(--paper);transition:border-color .2s,color .2s;}
.rr-jump a:hover{border-color:var(--ocean);color:var(--ocean);}
.rr-jump a em{font-style:normal;font-family:'Source Code Pro',monospace;font-size:0.7rem;background:var(--glacier);color:var(--doldrums);border-radius:999px;padding:0.1rem 0.5rem;}

/* section blocks (subtle paper / mist alternation for differentiation) */
.rr-main{padding:2.4rem 2rem 4rem;}
.rr-sec{padding:2.6rem 0;border-top:1px solid var(--line);}
.rr-sec:first-child{border-top:none;}
.rr-sec-head{display:flex;align-items:flex-start;gap:1rem;margin-bottom:1.8rem;}
.rr-sec-mark{flex:none;width:5px;align-self:stretch;border-radius:3px;background:linear-gradient(180deg,var(--ocean) 60%,var(--dusk) 60%);min-height:46px;}
.rr-sec-kicker{display:flex;align-items:baseline;gap:0.7rem;flex-wrap:wrap;}
.rr-fname{font-family:'Montserrat',sans-serif;font-weight:800;font-size:1.5rem;letter-spacing:-0.01em;color:var(--ink);}
.rr-pub{font-family:'Source Code Pro',monospace;font-size:0.74rem;letter-spacing:0.1em;text-transform:uppercase;color:var(--ocean);}
.rr-sec-blurb{font-size:0.95rem;color:#5b6770;margin-top:0.25rem;}
.rr-sec-count{margin-left:auto;color:var(--doldrums);white-space:nowrap;padding-top:0.3rem;}

/* card grid */
.rgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;}
.rcard{display:flex;flex-direction:column;text-decoration:none;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--paper);transition:transform .2s,box-shadow .2s,border-color .2s;}
.rcard:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(15,34,51,0.10);border-color:var(--ocean);}
.rc-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--glacier);}
.rc-thumb img{width:100%;height:100%;object-fit:cover;display:block;}
.rc-noimg{background:linear-gradient(135deg,var(--deep),var(--ocean));}
.rc-body{padding:1.2rem 1.3rem 1.5rem;display:flex;flex-direction:column;gap:0.6rem;flex:1;}
.rc-meta{display:flex;align-items:center;justify-content:space-between;gap:0.6rem;}
.rc-title{font-family:'Montserrat',sans-serif;font-weight:700;font-size:1.12rem;line-height:1.2;color:var(--ink);}
.rc-ex{font-size:0.9rem;color:#5b6770;line-height:1.55;}

/* article */
.art{padding:3rem 0 2rem;}
.art-wrap{max-width:760px;}
.art-meta{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;margin-bottom:1.4rem;}
.art-meta .back{color:var(--ocean);text-decoration:none;font-weight:600;font-size:0.85rem;margin-right:auto;}
.art-title{font-family:'Montserrat',sans-serif;font-weight:800;font-size:clamp(2rem,5vw,3rem);line-height:1.06;letter-spacing:-0.02em;color:var(--ink);margin-bottom:1.2rem;}
.art-dek{font-size:1.2rem;line-height:1.5;color:var(--ink);font-style:italic;border-left:3px solid var(--dusk);padding-left:1.2rem;margin-bottom:2rem;}
.art-body{font-size:1.08rem;line-height:1.75;color:#2b3640;}
.art-body p{margin:0 0 1.4rem;}
.art-body h2{font-family:'Montserrat',sans-serif;font-weight:700;font-size:1.6rem;color:var(--ink);margin:2.4rem 0 1rem;letter-spacing:-0.01em;}
.art-body h3{font-family:'Montserrat',sans-serif;font-weight:700;font-size:1.25rem;color:var(--ink);margin:2rem 0 0.8rem;}
.art-body strong{color:var(--ink);}
.art-body em{color:#2b3640;}
.art-body a{color:var(--ocean);text-decoration:underline;text-underline-offset:2px;}
.art-body ul,.art-body ol{margin:0 0 1.4rem 1.3rem;}
.art-body li{margin-bottom:0.5rem;}
.art-body blockquote{border-left:3px solid var(--ocean);padding-left:1.2rem;margin:0 0 1.4rem;color:#46525c;font-style:italic;}
.art-body figure{margin:2rem 0;}
.art-body img{width:100%;height:auto;border-radius:6px;border:1px solid var(--line);display:block;}
.art-body figcaption{font-family:'Source Code Pro',monospace;font-size:0.74rem;color:var(--doldrums);margin-top:0.6rem;text-align:center;}
.art-foot{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:2.6rem;padding-top:1.6rem;border-top:1px solid var(--line);}
.art-foot .art-sub{color:var(--ocean);font-weight:600;text-decoration:none;}

/* paywall */
.paywall{margin-top:1rem;border:1px solid var(--line);border-radius:10px;padding:2.2rem;background:var(--ice);text-align:center;position:relative;}
.paywall::before{content:"";position:absolute;top:-90px;left:0;right:0;height:90px;background:linear-gradient(to bottom,rgba(255,255,255,0),var(--glacier));pointer-events:none;}
.pw-mono{font-family:'Source Code Pro',monospace;font-size:0.68rem;letter-spacing:0.12em;text-transform:uppercase;color:var(--ocean);margin-bottom:0.6rem;}
.paywall h3{font-family:'Montserrat',sans-serif;font-weight:700;font-size:1.4rem;color:var(--ink);margin-bottom:0.8rem;}
.paywall p{font-size:0.98rem;color:#5b6770;max-width:520px;margin:0 auto 1.6rem;}
.pw-ctas{display:flex;gap:0.9rem;justify-content:center;flex-wrap:wrap;}
.pw-go{background:var(--ocean);color:#fff;text-decoration:none;padding:0.85rem 1.8rem;border-radius:5px;font-weight:600;}
.pw-go:hover{filter:brightness(0.88);}
.pw-ghost{border:1px solid var(--line);color:var(--ink);text-decoration:none;padding:0.85rem 1.6rem;border-radius:5px;font-weight:600;background:#fff;}
.pw-ghost:hover{border-color:var(--ocean);color:var(--ocean);}

/* footer */
footer{background:var(--deep);color:#9fb3c4;padding:3.4rem 0 0;margin-top:2rem;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem;}
.foot-brand{font-family:'Montserrat',sans-serif;font-weight:800;font-size:1.3rem;color:#fff;}
.foot-brand .dot{color:var(--dusk);}
.foot-tag{font-family:'Source Code Pro',monospace;font-size:0.7rem;letter-spacing:0.14em;color:var(--sky);margin:0.4rem 0 1rem;}
.foot-grid p{font-size:0.85rem;}
.foot-col h5{font-family:'Source Code Pro',monospace;font-size:0.68rem;letter-spacing:0.1em;color:var(--doldrums);margin-bottom:0.9rem;}
.foot-col a{display:block;color:#c7d4de;text-decoration:none;font-size:0.88rem;padding:0.25rem 0;}
.foot-col a:hover{color:#fff;}
.foot-sig{margin-top:2.4rem;padding:1.4rem 0;border-top:1px solid rgba(255,255,255,0.1);display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;align-items:center;}
.foot-sig .lhm-sig a{color:var(--ocean);text-decoration:none;font-weight:600;font-size:0.85rem;}
.foot-sig .lhm-sig{font-size:0.85rem;color:var(--doldrums);}
.foot-disclaimer{font-size:0.7rem;color:#6b7d8c;line-height:1.6;padding-bottom:2rem;}
.foot-bar{height:5px;background:linear-gradient(90deg,var(--ocean) 66%,var(--dusk) 66%);}

@media (max-width:900px){
  .rgrid{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .nav-links{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;flex-direction:column;padding:1rem 2rem;border-bottom:1px solid var(--line);gap:0.9rem;}
  .nav-links.open{display:flex;}
  .nav-toggle{display:block;}
}
@media (max-width:560px){.rgrid{grid-template-columns:1fr;}}