@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700&family=Inter:wght@400;500;600&display=swap');

:root{
  --navy:#0c2440;
  --navy-2:#123257;
  --blue:#1d5797;
  --gold:#c49a52;
  --gold-soft:#e9dcc3;
  --ink:#14253a;
  --muted:#5d6b7a;
  --line:#dde3ea;
  --paper:#ffffff;
  --stone:#f4f2ee;
  --display:'Archivo',system-ui,sans-serif;
  --body:'Inter',system-ui,sans-serif;
  --wrap:min(1200px,calc(100% - 96px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16.5px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3,h4,p,figure,ul{margin:0}
h1,h2,h3,h4{font-family:var(--display);font-weight:600;letter-spacing:-.02em;line-height:1.1;color:var(--navy)}
h2{font-size:clamp(32px,4vw,48px)}
h3{font-size:21px;line-height:1.25}
p+p{margin-top:16px}
:focus-visible{outline:2px solid var(--gold);outline-offset:4px}
.wrap{width:var(--wrap);margin-inline:auto}
.section{padding-block:clamp(72px,9vw,120px)}
.kicker{font-family:var(--display);font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:18px;display:flex;align-items:center;gap:12px}
.kicker::before{content:"";width:28px;height:2px;background:currentColor}
.lead{font-size:clamp(18px,1.6vw,20px);color:var(--muted);max-width:640px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;z-index:99;background:#fff;padding:8px 14px}

/* Header */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand img{width:148px}
.nav{display:flex;align-items:center;gap:30px;font-size:15px;font-weight:500}
.nav a{text-decoration:none;color:var(--ink)}
.nav a:hover{color:var(--blue)}
.nav .btn{color:#fff}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 12px;font:inherit;font-size:14px;cursor:pointer}

.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:4px;background:var(--blue);color:#fff;text-decoration:none;font-weight:600;font-size:15px;border:0;cursor:pointer;transition:background .2s}
.btn:hover{background:var(--navy)}
.btn.gold{background:var(--gold);color:var(--navy)}
.btn.gold:hover{background:#d8b06a}
.btn.ghost{background:transparent;color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.5)}
.btn.ghost:hover{background:rgba(255,255,255,.12)}
.nav .btn{padding:10px 18px}

/* Hero */
.hero{position:relative;min-height:620px;display:flex;align-items:flex-end;color:#fff;background:var(--navy) url('/assets/sonora-aerial.jpg') center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,26,48,.92) 0%,rgba(8,26,48,.7) 45%,rgba(8,26,48,.25) 100%),linear-gradient(0deg,rgba(8,26,48,.85) 0%,rgba(8,26,48,0) 45%)}
.hero .wrap{position:relative;padding-block:80px 48px}
.hero .kicker{color:var(--gold-soft)}
.hero h1{color:#fff;font-size:clamp(42px,6.2vw,80px);max-width:860px;letter-spacing:-.03em}
.hero h1 em{font-style:normal;color:#d8b06a}
.hero p.lead{color:rgba(255,255,255,.85);margin-top:26px;max-width:600px}
.hero .actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-facts{display:grid;grid-template-columns:repeat(4,1fr);margin-top:48px;border-top:1px solid rgba(255,255,255,.25)}
.hero-facts div{padding:22px 24px 0 0}
.hero-facts strong{display:block;font-family:var(--display);font-size:clamp(22px,2.3vw,30px);font-weight:600;color:#fff;line-height:1.1}
.hero-facts span{font-size:14px;color:rgba(255,255,255,.72)}
.photo-credit{position:absolute;right:20px;bottom:14px;font-size:11.5px;color:rgba(255,255,255,.6);z-index:1}

/* Intro */
.intro{display:grid;grid-template-columns:1fr 1.1fr;gap:72px;align-items:start}
.intro h2{max-width:520px}
.intro-body p{color:var(--muted)}
.intro-body p strong{color:var(--ink);font-weight:600}

/* Pillars */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:64px}
.pillar{border:1px solid var(--line);border-radius:6px;padding:34px 30px;background:#fff;position:relative}
.pillar .num{font-family:var(--display);font-weight:700;color:var(--gold);font-size:14px;letter-spacing:.1em}
.pillar h3{margin:14px 0 12px}
.pillar p{color:var(--muted);font-size:15.5px}
.pillar ul{margin-top:18px;padding:0;list-style:none;font-size:14.5px}
.pillar li{padding:8px 0;border-top:1px solid var(--line)}

/* Value chain */
.chain{background:var(--navy);color:#fff}
.chain h2{color:#fff}
.chain .lead{color:rgba(255,255,255,.75)}
.chain-head{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:end}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:2px;margin-top:60px;counter-reset:s}
.step{background:var(--navy-2);padding:28px 22px 30px}
.step figure{aspect-ratio:4/3;overflow:hidden;margin:-28px -22px 22px;background:#0a1d33}
.step figure img{width:100%;height:100%;object-fit:cover}
.step h3{color:#fff;font-size:18px}
.step h3::before{counter-increment:s;content:"0" counter(s);display:block;font-size:12.5px;color:var(--gold);letter-spacing:.12em;margin-bottom:8px}
.step p{color:rgba(255,255,255,.72);font-size:14.5px;margin-top:10px}

/* Barimont */
.project-head{display:flex;justify-content:space-between;align-items:end;gap:40px;flex-wrap:wrap}
.project-head .lead{margin-top:16px}
.badge{display:inline-block;font-size:12.5px;font-weight:600;background:var(--stone);border:1px solid var(--line);border-radius:999px;padding:5px 12px;color:var(--muted);margin-bottom:16px}
.gallery{display:grid;grid-template-columns:1.5fr 1fr;grid-template-rows:220px 220px;gap:12px;margin-top:48px}
.gallery figure{position:relative;overflow:hidden;border-radius:4px;background:var(--stone)}
.gallery figure:first-child{grid-row:span 2}
.gallery img{width:100%;height:100%;object-fit:cover}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:24px 14px 10px;font-size:12.5px;color:#fff;background:linear-gradient(0deg,rgba(0,0,0,.6),transparent)}
.stats{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--line);border-radius:6px;margin-top:28px}
.stats div{padding:24px 22px;border-left:1px solid var(--line)}
.stats div:first-child{border-left:0}
.stats strong{display:block;font-family:var(--display);font-size:30px;font-weight:600;color:var(--blue);line-height:1.15}
.stats span{font-size:13.5px;color:var(--muted)}
.project-detail{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:56px}
.project-detail h3{font-size:18px;margin-bottom:10px}
.project-detail p{color:var(--muted);font-size:15.5px}
.text-link{display:inline-flex;gap:8px;font-weight:600;color:var(--blue);text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:2px}
.text-link:hover{color:var(--navy)}

/* Trade */
.trade{background:var(--stone)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.split figure{border-radius:6px;overflow:hidden;aspect-ratio:5/4}
.split figure img{width:100%;height:100%;object-fit:cover}
.split .lead{margin-top:20px}
.checks{list-style:none;padding:0;margin-top:28px;display:grid;gap:12px}
.checks li{padding-left:30px;position:relative}
.checks li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:8px;border-left:2px solid var(--gold);border-bottom:2px solid var(--gold);transform:rotate(-45deg)}
.note{font-size:13.5px;color:var(--muted);margin-top:24px}

/* Timeline */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:56px;border-top:2px solid var(--navy)}
.tl{padding:28px 28px 0 0;position:relative}
.tl::before{content:"";position:absolute;top:-8px;left:0;width:14px;height:14px;border-radius:50%;background:var(--gold);border:3px solid #fff;box-shadow:0 0 0 1px var(--gold)}
.tl b{font-family:var(--display);font-size:30px;color:var(--navy);display:block;font-weight:600}
.tl h3{font-size:17px;margin:6px 0 8px}
.tl p{color:var(--muted);font-size:15px}

/* Opportunity */
.opp{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.opp h2{color:#fff}
.opp .lead{color:rgba(255,255,255,.78)}
.criteria{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 40px;margin-top:8px}
.criteria div{border-top:1px solid rgba(255,255,255,.2);padding-top:16px}
.criteria h3{color:#fff;font-size:17px}
.criteria p{color:rgba(255,255,255,.7);font-size:14.5px;margin-top:6px}
.opp .actions{margin-top:36px;display:flex;flex-wrap:wrap;gap:14px}

/* Footer */
.footer{background:#fff;color:var(--muted);font-size:14.5px;padding-block:64px 28px;border-top:1px solid var(--line)}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;align-items:start}
.footer-logo{display:inline-block}
.footer-logo img{width:170px}
.footer-tag{margin-top:18px;max-width:340px;color:var(--muted)}
.footer h4{color:var(--navy);font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px}
.footer a{text-decoration:none;color:var(--ink)}.footer a:hover{color:var(--blue)}
.footer ul{list-style:none;padding:0;display:grid;gap:9px}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:48px;padding-top:22px;font-size:13px;color:var(--muted)}
.footer-compact{padding-block:0 28px;border-top:0}
.footer-compact .footer-bottom{margin-top:0}

/* Contact page */
.contact-hero{background:var(--navy);color:#fff;padding-block:88px 72px}
.contact-hero h1{color:#fff;font-size:clamp(38px,5vw,60px)}
.contact-hero .lead{color:rgba(255,255,255,.78);margin-top:20px}
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:64px}
.contact-card{border:1px solid var(--line);border-radius:6px;padding:36px}
.contact-card h2{font-size:24px;margin-bottom:6px}
.contact-card .email{font-family:var(--display);font-size:clamp(22px,2.6vw,30px);color:var(--blue);text-decoration:none;font-weight:600;word-break:break-all}
.info-list{list-style:none;padding:0;margin-top:28px;display:grid;gap:18px}
.info-list span{display:block;font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600}
.topics{border:0;padding:0;margin:22px 0 0;display:grid;gap:10px}
.topics legend{font-weight:600;margin-bottom:12px}
.topics label{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:4px;padding:13px 16px;cursor:pointer;font-size:15px}
.topics label:has(input:checked){border-color:var(--blue);background:#f2f6fb}
.topics input{accent-color:var(--blue)}
.contact-card .btn{margin-top:24px}
.small{font-size:13.5px;color:var(--muted);margin-top:12px}

/* Responsive */
@media (max-width:1020px){
  .steps{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(3,1fr)}
  .stats div:nth-child(4){border-left:0}
  .stats div:nth-child(n+4){border-top:1px solid var(--line)}
  .timeline{grid-template-columns:repeat(2,1fr);row-gap:36px}
}
@media (max-width:860px){
  :root{--wrap:calc(100% - 40px)}
  .menu-btn{display:block}
  .nav{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;gap:0;padding:8px 20px 20px;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav a{padding:12px 0;width:100%}
  .nav .btn{margin-top:8px;width:auto;padding:12px 18px}
  .intro,.chain-head,.split,.contact-grid{grid-template-columns:1fr;gap:36px}
  .pillars,.project-detail{grid-template-columns:1fr}
  .hero-facts{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:1fr 1fr;grid-template-rows:240px 180px}
  .gallery figure:first-child{grid-column:span 2;grid-row:auto}
  .criteria{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
}
@media (max-width:560px){
  .steps{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stats div{border-left:0!important;border-top:1px solid var(--line)}
  .stats div:nth-child(-n+2){border-top:0}
  .stats div:nth-child(even){border-left:1px solid var(--line)!important}
  .timeline{grid-template-columns:1fr}
  .hero{min-height:0}.hero .wrap{padding-block:52px 48px}.hero h1{font-size:clamp(40px,10.5vw,54px)}.hero p.lead{font-size:17px;margin-top:22px}.hero .actions{margin-top:24px;gap:10px}.hero-facts{margin-top:32px}.hero-facts strong{font-size:20px}.hero-facts span{font-size:12px;display:block;margin-top:6px}.hero .kicker{font-size:10px;letter-spacing:.1em}.hero .photo-credit{font-size:10px}
  .contact-card{padding:24px}
}

/* China section */
.china-head{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:end}
.china-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px}
.cn-card{background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden;display:flex;flex-direction:column}
.cn-card figure{aspect-ratio:4/3;overflow:hidden;background:var(--stone)}
.cn-card figure img{width:100%;height:100%;object-fit:cover}
.cn-card div{padding:26px 26px 30px}
.cn-card .num{font-family:var(--display);font-weight:700;color:var(--gold);font-size:13px;letter-spacing:.1em}
.cn-card h3{margin:10px 0 10px}
.cn-card p{color:var(--muted);font-size:15.5px}
.china-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:24px}
.china-strip figure{aspect-ratio:3/2;overflow:hidden;border-radius:4px;background:var(--stone)}
.china-strip img{width:100%;height:100%;object-fit:cover}
@media (max-width:860px){.china-head{grid-template-columns:1fr;gap:20px}.china-grid{grid-template-columns:1fr}.china-strip{grid-template-columns:1fr 1fr}}

/* Strengths */
.strengths{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:56px}
.strengths article{border-top:3px solid var(--gold);padding-top:22px}
.strengths .num{font-family:var(--display);font-weight:700;color:var(--gold);font-size:13px;letter-spacing:.1em}
.strengths h3{margin:10px 0 10px;font-size:20px}
.strengths p{color:var(--muted);font-size:15.5px}
.strengths-sec{background:var(--stone)}
@media (max-width:1020px){.strengths{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.strengths{grid-template-columns:1fr}}

/* Investment and technical detail */
.investment-section{padding-bottom:clamp(72px,9vw,120px)}
.investment-head{max-width:780px;margin-bottom:36px}
.investment-head h2{font-size:clamp(30px,3.4vw,42px)}
.investment-head .lead{margin-top:20px;max-width:740px}
.technology-example{margin-top:48px;padding-top:40px;border-top:1px solid rgba(255,255,255,.25);display:grid;grid-template-columns:1fr 1.15fr;gap:64px}
.technology-heading h3{color:#fff;font-size:clamp(26px,3vw,36px);max-width:420px}
.technology-heading>p:last-child{margin-top:18px;color:rgba(255,255,255,.75);font-size:16px}
.technology-details{margin:0;display:grid;gap:22px}
.technology-details dt{font-weight:600;color:var(--gold-soft);font-size:13px;letter-spacing:.04em}
.technology-details dd{margin:7px 0 0;color:rgba(255,255,255,.85);font-size:15px}
/* Projects overview */
.projects-intro{padding-bottom:clamp(40px,5vw,64px)}
.proj-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px}
.proj-card{display:flex;flex-direction:column;gap:36px;padding:30px;border:1px solid var(--line);border-top:3px solid var(--gold);border-radius:4px;text-decoration:none;background:var(--stone);transition:background .2s}
.proj-card:hover{background:#eaeef3}
.project-index{font-size:12px;letter-spacing:.13em;font-weight:600;color:var(--muted)}
.proj-text{display:grid;gap:10px}
.proj-text small{font-size:12px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);font-weight:600}
.proj-text strong{font-family:var(--display);font-size:clamp(26px,2.6vw,34px);font-weight:600;color:var(--navy);line-height:1.1}
.proj-text em{font-style:normal;font-size:15px;color:var(--muted)}
.project-block{border-top:1px solid var(--line);padding-top:clamp(56px,7vw,96px)}
.china-strip{grid-template-columns:1fr 1fr}
.china-strip figure{position:relative;aspect-ratio:2/1}
.china-strip figcaption{position:absolute;bottom:0;left:0;right:0;padding:24px 16px 12px;background:linear-gradient(transparent,rgba(8,26,48,.8));color:#fff;font-size:13px}
@media (max-width:1020px){.nav{gap:18px;font-size:14px}}
@media (max-width:860px){.proj-cards,.technology-example{grid-template-columns:1fr}.technology-example{gap:28px}.proj-card{gap:24px}}
@media (max-width:560px){.china-strip figure{aspect-ratio:4/3}.china-strip figcaption{font-size:11px;padding:22px 8px 8px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}