/*
  Shared styles for the inner pages of erwinmongui.com (case studies, writing,
  about, Spanish pages). The homepage keeps its own inline styles in index.html.
  Generated pages link this file; edit it directly.
*/
:root{
  color-scheme:dark;
  --black:#000000;--ink:#1d1d1f;--grey:#f5f5f7;--white:#ffffff;
  --silver:#a1a1a6;--steel:#6e6e73;--soft:#d2d2d7;--panel:#161617;
  --line-dark:rgba(255,255,255,.12);--line-light:rgba(0,0,0,.12);
  --blue:#0071e3;--blue-text:#0066cc;--blue-hover:#0077ed;--blue-dark:#2997ff;--mint:#81ffd9;
  --font:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --gut:max(16px,calc((100vw - 1200px) / 2));
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--black);color:var(--white);font-family:var(--font);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit}
p,h1,h2,h3,h4,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3{font-weight:800;text-wrap:balance}
button,select{font:inherit}
:focus-visible{outline:2px solid var(--blue-dark);outline-offset:3px;border-radius:6px}

/* Skip link (the header and footer live in chrome.css) */
.skip{position:absolute;left:16px;top:-60px;z-index:100;background:var(--white);color:var(--ink);padding:10px 16px;border-radius:999px;font-weight:600;text-decoration:none}
.skip:focus{top:12px}

/* Shared building blocks */
.stage{padding:clamp(64px,9vw,120px) var(--gut)}
.stage-light{background:var(--grey);color:var(--ink)}
.stage-dark{background:var(--black);color:var(--white)}
.stage-panel{background:var(--panel);color:var(--white)}
.h2{font-size:clamp(36px,5.4vw,72px);line-height:1.02;letter-spacing:-.045em}
.h3{font-size:clamp(24px,2.6vw,32px);letter-spacing:-.03em;line-height:1.12}
.lede{margin-top:18px;font-size:clamp(18px,1.7vw,22px);line-height:1.45;font-weight:500;letter-spacing:-.01em;max-width:62ch}
.stage-light .lede{color:var(--steel)}
.stage-dark .lede,.stage-panel .lede{color:var(--silver)}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--blue-dark)}
.stage-light .eyebrow{color:var(--blue)}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;min-height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;text-decoration:none;border:1px solid transparent}
.btn-primary{background:var(--blue);color:var(--white)}
.btn-primary:hover{background:var(--blue-hover)}
.btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
.btn-ghost:hover{border-color:rgba(255,255,255,.7)}
.btn-outline{border-color:rgba(0,0,0,.28);color:var(--ink)}
.btn-outline:hover{border-color:rgba(0,0,0,.7)}
.link{font-weight:700;text-decoration:none;color:var(--blue-dark)}
.stage-light .link{color:var(--blue)}
/* Links on the light article surface: #0066cc keeps 5.1:1 on #f5f5f7 (WCAG AA); the bright --blue-dark is for dark backgrounds only. */
.doc .link{color:var(--blue-text)}
.link:hover{text-decoration:underline}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:13px;padding:5px 11px;border-radius:999px;border:1px solid var(--line-dark);color:var(--soft)}
.stage-light .chip{border-color:var(--line-light);color:var(--ink)}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--silver)}
.crumbs a{color:var(--silver);text-decoration:none}
.crumbs a:hover{color:var(--white)}
.stack-gap{display:flex;flex-direction:column;gap:clamp(36px,5vw,56px)}

/* Home */
.hero{padding:clamp(72px,11vw,150px) var(--gut) clamp(64px,9vw,120px);text-align:center;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-10%;background:radial-gradient(46% 36% at 50% 52%,rgba(41,151,255,.16),transparent 70%),radial-gradient(28% 24% at 62% 44%,rgba(129,255,217,.12),transparent 70%);filter:blur(28px);pointer-events:none}
.hero > *{position:relative}
.hero h1{margin:0 auto;width:min(520px,82vw)}
.hero h1 svg{display:block;width:100%;height:auto}
.hero-statement{max-width:760px;margin:22px auto 0;font-size:clamp(20px,2.6vw,32px);line-height:1.22;letter-spacing:-.025em;font-weight:600}
.hero-meta{margin-top:18px;color:var(--silver);font-size:clamp(15px,1.4vw,18px)}
.hero .btns{justify-content:center;margin-top:32px}
.intro-text{font-size:clamp(22px,2.8vw,36px);line-height:1.3;letter-spacing:-.025em;font-weight:600;max-width:30ch}
.intro-text span{color:var(--steel)}

.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{display:flex;flex-direction:column;gap:14px;padding:30px;border-radius:24px;background:var(--white);color:var(--ink);text-decoration:none;border:1px solid var(--line-light);transition:transform .2s}
.card:hover{transform:translateY(-3px)}
.card .num{font-size:56px;font-weight:800;letter-spacing:-.05em;line-height:1;color:var(--blue)}
.card .cap{font-size:14px;color:var(--steel)}
.card h3{font-size:22px;letter-spacing:-.02em;line-height:1.2}
.card p{color:#424245;font-size:15px}
.card .more{margin-top:auto;font-weight:700;color:var(--blue);font-size:15px}
.stage-dark .card,.stage-panel .card{background:#111113;color:var(--white);border-color:var(--line-dark)}
.stage-dark .card p,.stage-panel .card p{color:var(--soft)}
.stage-dark .card .cap,.stage-panel .card .cap{color:var(--silver)}
.stage-dark .card .num,.stage-panel .card .num{color:var(--mint)}
.stage-dark .card .more,.stage-panel .card .more{color:var(--blue-dark)}
@media (max-width:900px){.cards{grid-template-columns:minmax(0,1fr)}}

.roles{display:flex;flex-direction:column;border-top:1px solid var(--line-dark)}
.role{display:grid;grid-template-columns:170px minmax(0,1fr) 220px;gap:8px 28px;padding:26px 0;border-bottom:1px solid var(--line-dark);align-items:baseline}
.role-when{font-size:14px;color:var(--silver);font-variant-numeric:tabular-nums}
.role h3{font-size:24px;letter-spacing:-.025em}
.role-title{color:var(--soft);font-size:15px;margin-top:4px}
.role-metric{display:flex;flex-direction:column;gap:2px}
.role-metric b{font-size:34px;letter-spacing:-.04em;line-height:1;color:var(--mint)}
.role-metric span{font-size:13px;color:var(--silver)}
.role .link{font-size:14px;display:inline-block;margin-top:8px}
@media (max-width:820px){.role{grid-template-columns:minmax(0,1fr)}}

.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 36px}
.metric{padding:28px 0;border-top:1px solid var(--line-light);display:flex;flex-direction:column;gap:8px}
.metric-num{font-size:clamp(48px,6vw,72px);font-weight:800;letter-spacing:-.05em;line-height:1;font-variant-numeric:tabular-nums}
.metric-label{font-size:16px}
.metric-src{font-size:13px;color:var(--steel)}
@media (max-width:820px){.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:480px){.metrics{grid-template-columns:minmax(0,1fr)}}

.posts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}
.post{display:flex;flex-direction:column;gap:8px;padding:26px 0;border-top:1px solid var(--line-dark);text-decoration:none}
.post .tag{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--mint)}
.post h3{font-size:22px;letter-spacing:-.02em;line-height:1.25}
.post p{color:var(--silver);font-size:15px}
.post:hover h3{text-decoration:underline;text-underline-offset:4px}
.stage-light .post{border-color:var(--line-light)}
.stage-light .post .tag{color:var(--blue)}
.stage-light .post p{color:var(--steel)}
@media (max-width:820px){.posts{grid-template-columns:minmax(0,1fr)}}

.ai-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.ai{padding:28px;border-radius:22px;background:#111113;border:1px solid var(--line-dark);display:flex;flex-direction:column;gap:12px}
.ai h3{font-size:20px;letter-spacing:-.02em}
.ai p{color:var(--soft);font-size:15px}
@media (max-width:820px){.ai-grid{grid-template-columns:minmax(0,1fr)}}

.facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}
.fact{padding:24px 0;border-top:1px solid var(--line-light);display:flex;flex-direction:column;gap:8px}
.fact h3{font-size:19px;letter-spacing:-.015em}
.fact p{color:#424245;font-size:15.5px}
@media (max-width:820px){.facts{grid-template-columns:minmax(0,1fr)}}

.contact{text-align:center;display:flex;flex-direction:column;align-items:center;gap:20px}
.contact .btns{justify-content:center}
.email-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:center;color:var(--soft)}
.email-row code{font-family:var(--font);font-size:17px;user-select:all;color:var(--white)}
.copy{min-height:36px;padding:0 14px;border-radius:999px;border:1px solid var(--line-dark);background:transparent;color:var(--white);cursor:pointer;font-size:13px}
.gbtn{display:inline-flex;align-items:center;gap:10px;min-height:40px;padding:0 16px;border-radius:999px;border:1px solid rgba(255,255,255,.28);background:#202124;color:#e8eaed;font-size:14px;text-decoration:none}
.gbtn i{width:16px;height:16px;border-radius:50%;border:3px solid var(--blue-dark);display:block}

/* Index pages */
.page-head{padding:clamp(56px,8vw,104px) var(--gut) clamp(40px,6vw,64px);display:flex;flex-direction:column;gap:18px}
.page-head h1{font-size:clamp(44px,7vw,96px);line-height:1;letter-spacing:-.05em}
.work-list{display:flex;flex-direction:column;gap:20px}
.work-item{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:28px;padding:36px;border-radius:28px;background:var(--white);color:var(--ink);text-decoration:none;border:1px solid var(--line-light)}
.work-item h2{font-size:clamp(26px,3vw,38px);letter-spacing:-.035em;line-height:1.08}
.work-item p{color:#424245}
.work-item .meta{font-size:14px;color:var(--steel)}
.work-item .kpis{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-content:start}
.work-item .kpis div{display:flex;flex-direction:column;gap:2px;padding-top:14px;border-top:1px solid var(--line-light)}
.work-item .kpis b{font-size:36px;letter-spacing:-.045em;line-height:1;color:var(--blue)}
.work-item .kpis span{font-size:13px;color:var(--steel)}
.work-item .more{font-weight:700;color:var(--blue)}
@media (max-width:820px){.work-item{grid-template-columns:minmax(0,1fr);padding:26px}}

/* Long-form pages (case studies, articles, about) */
.doc-head{padding:clamp(48px,7vw,96px) var(--gut) clamp(40px,5vw,64px);display:flex;flex-direction:column;gap:20px;border-bottom:1px solid var(--line-dark)}
.doc-head h1{font-size:clamp(38px,5.6vw,76px);line-height:1.02;letter-spacing:-.045em;max-width:18ch}
.doc-head .summary{font-size:clamp(18px,1.8vw,23px);line-height:1.45;color:var(--soft);max-width:60ch;font-weight:500}
.byline{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:14px;color:var(--silver)}
.kpi-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:12px}
.kpi-row div{display:flex;flex-direction:column;gap:4px;padding-top:16px;border-top:1px solid var(--line-dark)}
.kpi-row b{font-size:clamp(34px,4vw,52px);letter-spacing:-.05em;line-height:1;color:var(--mint);font-variant-numeric:tabular-nums}
.kpi-row span{font-size:14px;color:var(--silver)}
@media (max-width:820px){.kpi-row{grid-template-columns:repeat(2,minmax(0,1fr))}}
.kpi-row.kpi-3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:820px){.kpi-row.kpi-3{grid-template-columns:minmax(0,1fr)}}

.doc{background:var(--grey);color:var(--ink);padding:clamp(48px,7vw,96px) var(--gut)}
.doc-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:64px;align-items:start}
@media (max-width:980px){.doc-grid{grid-template-columns:minmax(0,1fr)}}
.prose{max-width:68ch;font-size:18px;line-height:1.7;color:#2d2d30;display:flex;flex-direction:column;gap:20px}
.prose h2{font-size:clamp(26px,2.8vw,34px);letter-spacing:-.03em;line-height:1.15;color:var(--ink);margin-top:24px}
.prose h3{font-size:21px;letter-spacing:-.02em;color:var(--ink);margin-top:8px}
.prose ul,.prose ol{display:flex;flex-direction:column;gap:10px;padding-left:22px}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose strong{color:var(--ink)}
.prose pre{margin:0;padding:18px 20px;border-radius:14px;background:var(--ink);color:#e8e8ed;overflow-x:auto;font-size:14px;line-height:1.55}
.prose pre code,.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.prose p code{font-size:.9em;background:rgba(0,0,0,.06);padding:1px 5px;border-radius:4px}
.prose blockquote{margin:8px 0;padding:4px 0 4px 22px;border-left:3px solid var(--blue);font-size:21px;line-height:1.5;color:var(--ink);font-weight:600}
.prose table{border-collapse:collapse;width:100%;font-size:15.5px;line-height:1.45}
.prose th,.prose td{color:#2d2d30;font-size:inherit;text-align:left;padding:12px 14px 12px 0;border-bottom:1px solid var(--line-light);vertical-align:top}
.prose th{font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--steel)}
.table-wrap{overflow-x:auto}
.inshort{padding:22px 24px;border-radius:18px;background:var(--white);border:1px solid var(--line-light);display:flex;flex-direction:column;gap:10px;font-size:17px}
.inshort b{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--blue)}

.aside{position:sticky;top:80px;display:flex;flex-direction:column;gap:22px;font-size:15px}
@media (max-width:980px){.aside{position:static}}
.facts-box{background:var(--white);border:1px solid var(--line-light);border-radius:20px;padding:22px;display:flex;flex-direction:column;gap:14px}
.facts-box dt{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--steel);font-weight:700}
.facts-box dd{margin:2px 0 0;color:var(--ink)}
.related{display:flex;flex-direction:column;gap:10px}
.related h2{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--steel)}
.related a{color:var(--blue-text);font-weight:600;text-decoration:none}
.related a:hover{text-decoration:underline}

.author{display:flex;gap:18px;align-items:flex-start;padding:24px;border-radius:20px;background:var(--white);border:1px solid var(--line-light);max-width:68ch}
.author svg{width:44px;height:44px;flex:none}
.author p{font-size:15px;color:#424245}
.author b{display:block;color:var(--ink);font-size:16px;margin-bottom:2px}

/* Architecture diagrams */
.flow{display:flex;flex-direction:column;align-items:stretch;gap:0;padding:24px;border-radius:20px;background:var(--ink);color:var(--white);font-size:14px;line-height:1.35}
.flow-cap{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--silver);margin-bottom:14px}
.flow-row{display:grid;gap:10px}
.flow-row.c1{grid-template-columns:minmax(0,1fr)}
.flow-row.c2{grid-template-columns:repeat(2,minmax(0,1fr))}
.flow-row.c3{grid-template-columns:repeat(3,minmax(0,1fr))}
.node{padding:12px 14px;border-radius:12px;border:1px solid var(--line-dark);background:#2a2a2d}
.node b{display:block;font-size:14.5px}
.node span{color:var(--silver);font-size:13px}
.node.new{border-color:rgba(129,255,217,.5)}
.node.old{border-style:dashed}
.node.key{background:#10263a;border-color:rgba(41,151,255,.6)}
.arrow{display:flex;justify-content:center;padding:6px 0;color:var(--silver)}
.arrow svg{width:16px;height:16px}
.flow-legend{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px;font-size:12px;color:var(--silver)}
.flow-legend i{display:inline-block;width:14px;height:10px;border-radius:3px;margin-right:6px;vertical-align:middle;border:1px solid var(--line-dark)}
@media (max-width:560px){.flow-row.c3,.flow-row.c2{grid-template-columns:minmax(0,1fr)}}

/* About */
.principles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.principle{padding:26px;border-radius:20px;background:var(--white);border:1px solid var(--line-light);display:flex;flex-direction:column;gap:10px}
.principle h3{font-size:20px;letter-spacing:-.02em;color:var(--ink)}
.principle p{font-size:15.5px;color:#424245}
@media (max-width:820px){.principles{grid-template-columns:minmax(0,1fr)}}
.certs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 40px}
.certs h3{font-size:18px;margin-bottom:10px;color:var(--ink)}
.certs li{padding:9px 0;border-top:1px solid var(--line-light);display:flex;flex-direction:column;font-size:15px}
.certs li a{color:var(--ink);text-decoration:none;font-weight:600}
.certs li a:hover{color:var(--blue)}
.certs li span{color:var(--steel);font-size:13px}
@media (max-width:820px){.certs{grid-template-columns:minmax(0,1fr)}}
.award{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;align-items:center}
.award img{width:100%;height:auto;border-radius:16px;display:block;border:1px solid var(--line-light)}
@media (max-width:820px){.award{grid-template-columns:minmax(0,1fr)}}


/* 404 page */
.nf{min-height:72vh;display:grid;align-items:center;padding:clamp(56px,9vw,120px) var(--gut)}
.nf-inner{width:100%;max-width:760px;display:flex;flex-direction:column;gap:40px}
.nf-code{display:flex;align-items:center;gap:18px;font-size:clamp(72px,12vw,140px);font-weight:800;letter-spacing:-.06em;line-height:1;color:var(--mint)}
.nf-code svg{width:.72em;height:.72em;flex:none}
.nf-block{display:flex;flex-direction:column;gap:18px}
.nf-block + .nf-block{padding-top:36px;border-top:1px solid var(--line-dark)}
.nf-block h1,.nf-block > h2:first-child{font-size:clamp(32px,4.6vw,56px);line-height:1.05;letter-spacing:-.04em}
.nf-block .lede{margin-top:0}
.nf-path{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85em;color:var(--white);background:rgba(255,255,255,.08);padding:2px 8px;border-radius:6px;overflow-wrap:anywhere}
.nf-suggest{display:flex;flex-direction:column;gap:10px}
.nf-suggest h2{font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--silver)}
.nf-list{display:flex;flex-direction:column;border-top:1px solid var(--line-dark)}
.nf-list li{border-bottom:1px solid var(--line-dark)}
.nf-list a{display:block;padding:14px 0;color:var(--white);font-weight:600;text-decoration:none}
.nf-list a:hover{color:var(--mint)}
.nf-list a::after{content:" \2192";color:var(--blue-dark)}
.nf-contact{display:flex;flex-direction:column;gap:14px;font-size:15px;color:var(--silver)}
.nf-contact-es{display:none}
.nf-es .nf-contact-en{display:none}
.nf-es .nf-contact-es{display:inline}

/* Google preferred sources strip at the end of case studies and articles */
.ps-strip{background:var(--black);color:var(--soft);border-top:1px solid var(--line-dark);padding:40px 22px}
.ps-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px 32px;flex-wrap:wrap}
.ps-inner p{font-size:18px;font-weight:600;letter-spacing:-.01em;color:var(--white);max-width:44ch}
.ps-inner .preferred-source{min-height:40px}

/* Share buttons on articles (share_rail() in src/build.py, assets/share.js).
   Wide screens: a sticky column to the left of the text. Phones and tablets: a
   floating bar that appears below the article header. */
.share-rail{display:none}
.share-label{font-size:10px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--steel);margin-bottom:2px}
.share-btn{width:42px;height:42px;flex:none;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line-light);background:var(--white);color:var(--ink);text-decoration:none;font-weight:800;font-size:13px;cursor:pointer;padding:0}
.share-btn:hover{background:var(--ink);color:var(--white)}
@media (min-width:1100px){
  .doc .prose{padding-left:76px}
  .share-rail{display:flex;flex-direction:column;gap:8px;align-items:center;position:sticky;top:110px;align-self:flex-start;margin-left:-76px;margin-bottom:-20px;height:0;overflow:visible;z-index:5}
}
.share-bar{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:60;display:flex;gap:8px;padding:8px;border-radius:999px;background:rgba(29,29,31,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 8px 30px rgba(0,0,0,.35)}
.share-bar[hidden]{display:none}
@media (min-width:1100px){.share-bar{display:none}}
.share-native{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;border-radius:999px;border:0;background:var(--blue);color:var(--white);font-weight:700;cursor:pointer}
.share-mini{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#2c2c2e;color:var(--white);text-decoration:none;font-weight:800;font-size:13px;border:0;cursor:pointer;padding:0}
.share-toast{position:fixed;left:50%;bottom:calc(84px + env(safe-area-inset-bottom,0px));z-index:61;transform:translateX(-50%);white-space:nowrap;background:var(--white);color:var(--ink);padding:8px 14px;border-radius:999px;font-weight:700;font-size:13px;opacity:0;transition:opacity .2s;pointer-events:none}
.share-toast.on{opacity:1}
@media (min-width:1100px){.share-toast{bottom:24px}}
@media (prefers-reduced-motion:reduce){.share-toast{transition:none}}