/* ============================================================
   BAUTSWENG ENERGY GROUP — shared stylesheet
   ============================================================ */
:root{
  --ink:#0E2A1E;
  --green-900:#0F3D28;
  --green-700:#1B5E3B;
  --green-600:#237049;
  --green-500:#2F8659;
  --green-200:#CFE3D6;
  --green-100:#E7EFE9;
  --paper:#FBFBF9;
  --white:#FFFFFF;
  --line: rgba(14,42,30,0.14);
  --line-strong: rgba(14,42,30,0.28);

  --serif: 'Fraunces', Georgia, serif;
  --sans: 'IBM Plex Sans', -apple-system, sans-serif;
  --mono: 'IBM Plex Mono', monospace;

  --rail: 84px;
  --edge: 28px;
}
@media (max-width: 860px){ :root{ --rail: 20px; } }

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:var(--sans); font-size:16px; line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{ margin:0; font-family:var(--serif); font-weight:500; color:var(--ink); }
p{ margin:0; }
a{ color:inherit; text-decoration:none; }
img,svg{ display:block; max-width:100%; }
button{ font-family:inherit; cursor:pointer; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}
:focus-visible{ outline:2px solid var(--green-600); outline-offset:3px; }

/* ---------- page frame: drafting-sheet margin ---------- */
.sheet{ display:grid; grid-template-columns: var(--rail) 1fr var(--edge); border-top:1px solid var(--line); }
.sheet > .rail{ border-right:1px solid var(--line); position:relative; }
.sheet > .field{ min-width:0; padding: 88px 48px; }
.sheet > .edge{ border-left:1px solid var(--line); }
@media (max-width: 860px){
  .sheet{ grid-template-columns: 0 1fr 0; }
  .sheet > .rail, .sheet > .edge{ display:none; }
  .sheet > .field{ padding: 56px 22px; }
}
.rail-index{
  position:sticky; top:120px;
  writing-mode: vertical-rl; transform: rotate(180deg);
  font-family:var(--mono); font-size:11px; letter-spacing:.08em;
  color: rgba(14,42,30,0.42); padding:16px 0; white-space:nowrap;
}
.field-inner{ max-width: 1180px; margin:0 auto; }

/* ---------- nav ---------- */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between;
  padding: 20px var(--edge) 20px var(--rail);
  background: rgba(251,251,249,0.86); backdrop-filter: blur(10px);
  border-bottom:1px solid transparent; transition: border-color .3s ease, padding .3s ease;
}
.nav.scrolled{ border-bottom-color: var(--line); padding-top:14px; padding-bottom:14px; }
.nav-mark{ display:flex; align-items:center; gap:10px; }
.nav-mark .logo{ height:80px; width:auto; display:block; }
.nav-mark span{ font-family:var(--mono); font-size:13px; letter-spacing:.06em; font-weight:500; }
.nav-links{ display:flex; align-items:center; gap:30px; font-size:14px; }
.nav-links a{ color:var(--ink); opacity:.72; transition:opacity .2s; }
.nav-links a:hover{ opacity:1; }
.nav-links a.active{ opacity:1; border-bottom:1px solid var(--green-700); padding-bottom:3px; }
.nav-cta{ border:1px solid var(--ink); padding:9px 18px; font-size:13.5px; white-space:nowrap; transition: background .2s, color .2s; }
.nav-cta:hover{ background:var(--ink); color:var(--paper); }
.nav-toggle{ display:none; background:none; border:0; padding:6px; }
.nav-toggle span{ display:block; width:22px; height:1.5px; background:var(--ink); margin:5px 0; }
.mobile-menu{ display:none; }
@media (max-width: 860px){
  .nav{ padding:16px var(--edge) 16px 22px; }
  .nav-links{ display:none; }
  .nav-toggle{ display:block; }
  .mobile-menu.open{
    display:flex; flex-direction:column; position:fixed; top:60px; left:0; right:0; z-index:49;
    background:var(--paper); border-bottom:1px solid var(--line); padding:8px 22px 20px;
  }
  .mobile-menu a{ padding:12px 0; border-bottom:1px solid var(--line); font-size:15px; }
}

/* ---------- buttons ---------- */
.btn{ display:inline-flex; align-items:center; gap:10px; padding:14px 26px; font-size:14px; letter-spacing:.01em; border:1px solid var(--ink); transition: background .22s ease, color .22s ease, border-color .22s ease; }
.btn-solid{ background:var(--green-700); border-color:var(--green-700); color:var(--white); }
.btn-solid:hover{ background:var(--green-900); border-color:var(--green-900); }
.btn-line{ background:transparent; color:var(--ink); }
.btn-line:hover{ background:var(--ink); color:var(--paper); }
.btn-line-w{ border-color:rgba(255,255,255,.55); color:var(--white); }
.btn-line-w:hover{ background:var(--white); color:var(--green-900); }

/* ---------- home hero ---------- */
.hero .field{ padding-top:172px; padding-bottom:64px; }
.hero-grid{ display:grid; grid-template-columns: 1.35fr 1fr; gap:60px; align-items:end; }
.hero-kicker{ font-family:var(--mono); font-size:12.5px; letter-spacing:.09em; color:var(--green-700); margin-bottom:26px; display:flex; align-items:center; gap:10px; }
.hero-kicker::before{ content:''; width:26px; height:1px; background:var(--green-700); }
.hero h1{ font-size: clamp(2.6rem, 6vw, 4.6rem); line-height:1.03; letter-spacing:-.01em; text-transform:uppercase; max-width: 15ch; }
.hero h1 .reveal{ display:block; overflow:hidden; }
.hero h1 .reveal span{ display:block; transform:translateY(105%); animation: rise .9s cubic-bezier(.22,1,.36,1) forwards; }
.hero h1 .reveal:nth-child(1) span{ animation-delay:.05s; }
.hero h1 .reveal:nth-child(2) span{ animation-delay:.16s; }
.hero h1 .reveal:nth-child(3) span{ animation-delay:.27s; color:var(--green-700); }
@keyframes rise{ to{ transform:translateY(0); } }
.hero-sub{ font-size:17px; color:rgba(14,42,30,.68); margin-top:26px; max-width:46ch; }
.hero-ctas{ display:flex; gap:14px; margin-top:40px; flex-wrap:wrap; }
.hero-art{ align-self:end; padding-bottom:6px; }
.hero-art figcaption{ font-family:var(--mono); font-size:11px; color:rgba(14,42,30,.5); margin-top:10px; letter-spacing:.03em; }
@media (max-width: 860px){ .hero-grid{ grid-template-columns:1fr; } .hero-art{ order:-1; margin-bottom:36px; } }

/* ---------- internal page hero (subpages) ---------- */
.page-hero .field{ padding-top:168px; padding-bottom:44px; }
.page-hero h1{ font-size: clamp(2.1rem,4.4vw,3.2rem); text-transform:uppercase; letter-spacing:-.01em; max-width:18ch; }
.page-hero .lede{ font-size:16px; color:rgba(14,42,30,.66); margin-top:20px; max-width:52ch; }

/* ---------- section head ---------- */
.sec-head{ display:grid; grid-template-columns: 1fr 1.5fr; gap:60px; margin-bottom:56px; padding-bottom:40px; border-bottom:1px solid var(--line); }
.sec-head h2{ font-size: clamp(1.9rem,3.4vw,2.7rem); line-height:1.12; }
.sec-head .lede{ align-self:end; font-size:15.5px; color:rgba(14,42,30,.66); max-width:44ch; }
@media (max-width: 860px){ .sec-head{ grid-template-columns:1fr; gap:20px; } }

.tint{ background:var(--green-100); }
.tint .sheet > .rail, .tint .sheet > .edge{ border-color: rgba(14,42,30,0.16); }

/* ---------- who we are ---------- */
.who-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:70px; }
.who-statement{ font-family:var(--serif); font-size:clamp(1.5rem,2.6vw,2.1rem); line-height:1.32; font-weight:400; }
.who-body p{ font-size:15.5px; color:rgba(14,42,30,.72); margin-bottom:18px; }
.who-body p:last-child{ margin-bottom:0; }
@media (max-width: 860px){ .who-grid{ grid-template-columns:1fr; gap:34px; } }

.values-list{ border-top:1px solid var(--line); margin-top:60px; }
.values-item{ display:grid; grid-template-columns: 90px 1fr; gap:24px; padding:26px 0; border-bottom:1px solid var(--line); }
.values-item .vn{ font-family:var(--mono); font-size:12.5px; color:rgba(14,42,30,.42); }
.values-item h4{ font-size:17px; font-weight:500; margin-bottom:6px; }
.values-item p{ font-size:14.5px; color:rgba(14,42,30,.64); max-width:60ch; }

/* ---------- what we do ---------- */
.wwd-row{ border-bottom:1px solid var(--line); }
.wwd-row:first-child{ border-top:1px solid var(--line); }
.wwd-row .field{ padding-top:56px; padding-bottom:56px; }
.wwd-inner{ display:grid; grid-template-columns: 190px 1fr 260px; gap:44px; align-items:center; }
.wwd-index{ font-family:var(--mono); font-size:13px; color:rgba(14,42,30,.4); }
.wwd-title{ font-size:clamp(1.5rem,2.6vw,2.15rem); letter-spacing:-.01em; }
.wwd-sub{ font-family:var(--mono); font-size:13px; color:var(--green-700); margin-top:10px; }
.wwd-detail{ font-size:14.5px; color:rgba(14,42,30,.64); margin-top:16px; max-width:52ch; }
.wwd-art{ justify-self:end; width:100%; max-width:220px; }
@media (max-width: 860px){ .wwd-inner{ grid-template-columns:1fr; gap:18px; } .wwd-art{ justify-self:start; max-width:160px; order:-1; } }

/* ---------- portfolio ---------- */
.portfolio-grid{ display:grid; grid-template-columns: 1.1fr .9fr; gap:70px; }
.portfolio-lede{ font-family:var(--serif); font-size:clamp(1.4rem,2.4vw,1.9rem); line-height:1.3; max-width:20ch; margin-bottom:22px; }
.portfolio-body{ font-size:15.5px; color:rgba(14,42,30,.7); max-width:48ch; }
.pipeline-list{ border-top:1px solid var(--line); }
.pipeline-item{ display:grid; grid-template-columns: 44px 1fr auto; gap:16px; align-items:baseline; padding:18px 0; border-bottom:1px solid var(--line); font-size:14.5px; }
.pipeline-item .n{ font-family:var(--mono); font-size:12px; color:rgba(14,42,30,.4); }
.pipeline-item .status{ font-family:var(--mono); font-size:11.5px; letter-spacing:.04em; color:var(--green-700); }
.pipeline-item .name{ font-weight:500; }
.pipeline-item .place{ display:block; font-size:12.5px; color:rgba(14,42,30,.5); margin-top:2px; font-weight:400; }
@media (max-width: 860px){ .portfolio-grid{ grid-template-columns:1fr; gap:36px; } }

/* ---------- numbers ---------- */
.numbers{ background:var(--green-900); color:var(--white); }
.numbers .sheet > .rail, .numbers .sheet > .edge{ border-color:rgba(255,255,255,0.14); }
.numbers .sheet{ border-top-color: rgba(255,255,255,0.14); }
.numbers .rail-index{ color:rgba(255,255,255,.4); }
.numbers-head{ display:grid; grid-template-columns:1fr 1.4fr; gap:50px; margin-bottom:54px; }
.numbers-head h2{ color:var(--white); font-size:clamp(1.8rem,3.2vw,2.4rem); }
.numbers-head p{ font-size:14.5px; color:rgba(255,255,255,.6); align-self:end; max-width:46ch; }
.numbers-table{ border-top:1px solid rgba(255,255,255,.18); }
.num-row{ display:grid; grid-template-columns: 1fr auto 1.1fr; gap:28px; align-items:baseline; padding:30px 0; border-bottom:1px solid rgba(255,255,255,.18); }
.num-row .figure{ font-family:var(--mono); font-size:clamp(2.1rem,5.4vw,3.6rem); font-weight:500; letter-spacing:-.01em; white-space:nowrap; }
.num-row .label{ font-size:14.5px; color:rgba(255,255,255,.82); }
.num-row .note{ font-size:12.5px; color:rgba(255,255,255,.48); text-align:right; max-width:34ch; justify-self:end; }
@media (max-width: 860px){ .numbers-head{ grid-template-columns:1fr; gap:16px; } .num-row{ grid-template-columns:1fr; gap:8px; } .num-row .note{ text-align:left; justify-self:start; } }
.numbers-foot{ margin-top:28px; font-size:12.5px; color:rgba(255,255,255,.42); max-width:70ch; }

/* ---------- impact ---------- */
.impact-grid{ display:grid; grid-template-columns:.95fr 1.05fr; gap:70px; }
.impact-lede{ font-family:var(--serif); font-size:clamp(1.5rem,2.6vw,2.1rem); line-height:1.32; }
.impact-list{ border-top:1px solid var(--line); }
.impact-item{ display:grid; grid-template-columns: 30px 1fr; gap:16px; padding:20px 0; border-bottom:1px solid var(--line); }
.impact-item .tick{ width:9px; height:9px; background:var(--green-600); margin-top:6px; }
.impact-item h4{ font-size:16px; font-weight:500; margin-bottom:6px; }
.impact-item p{ font-size:14px; color:rgba(14,42,30,.64); }
@media (max-width: 860px){ .impact-grid{ grid-template-columns:1fr; gap:34px; } }

.impact-stats{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); margin-top:70px; }
.impact-stat{ background:var(--paper); padding:34px 28px; }
.impact-stat .fig{ font-family:var(--mono); font-size:2.2rem; color:var(--green-700); }
.impact-stat .lab{ font-size:13.5px; color:rgba(14,42,30,.6); margin-top:8px; }
@media (max-width:860px){ .impact-stats{ grid-template-columns:1fr; } }

/* ---------- projects ---------- */
.project-panel{ position:relative; overflow:hidden; background:var(--green-700); color:var(--white); padding:70px 48px; margin-bottom:2px; min-height:420px; display:flex; flex-direction:column; justify-content:flex-end; }
.project-panel .contour{ position:absolute; inset:0; opacity:.5; }
.project-panel .pcontent{ position:relative; z-index:2; }
.project-tag{ font-family:var(--mono); font-size:12px; letter-spacing:.06em; color:rgba(255,255,255,.72); margin-bottom:18px; }
.project-panel h3{ color:var(--white); font-size:clamp(2rem,5vw,3.4rem); max-width:14ch; line-height:1.05; text-transform:uppercase; }
.project-meta{ display:flex; gap:26px; margin-top:24px; flex-wrap:wrap; font-size:13.5px; color:rgba(255,255,255,.78); }
.project-meta span{ display:flex; align-items:center; gap:8px; }
.project-meta span::before{ content:''; width:5px; height:5px; background:var(--white); opacity:.6; }
.project-panel.future{ background:var(--paper); color:var(--ink); border:1px dashed var(--line-strong); min-height:220px; justify-content:center; align-items:flex-start; }
.project-panel.future h3{ color:var(--ink); font-size:clamp(1.5rem,3vw,2rem); text-transform:none; }
.project-panel.future .project-tag{ color:rgba(14,42,30,.5); }

.project-facts{ display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--line); border-bottom:1px solid var(--line); margin-top:0; }
.project-fact{ padding:26px 28px; border-right:1px solid var(--line); }
.project-fact:last-child{ border-right:none; }
.project-fact .k{ font-family:var(--mono); font-size:11.5px; color:rgba(14,42,30,.5); margin-bottom:8px; }
.project-fact .v{ font-size:15px; font-weight:500; }
@media (max-width:860px){ .project-facts{ grid-template-columns:1fr 1fr; } .project-fact{ border-bottom:1px solid var(--line); } }

/* ---------- partners ---------- */
.partners-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:70px; align-items:start; }
.partners-lede{ font-family:var(--serif); font-size:clamp(1.5rem,2.6vw,2.1rem); line-height:1.32; max-width:16ch; }
.audience-flow{ display:flex; flex-wrap:wrap; }
.audience-flow span{ font-size:15px; padding:14px 20px; border-right:1px solid var(--line); border-bottom:1px solid var(--line); }
@media (max-width: 860px){ .partners-grid{ grid-template-columns:1fr; gap:30px; } }

.partner-tracks{ border-top:1px solid var(--line); margin-top:60px; }
.partner-track{ display:grid; grid-template-columns:1fr 2fr; gap:30px; padding:26px 0; border-bottom:1px solid var(--line); }
.partner-track h4{ font-size:16px; font-weight:500; }
.partner-track p{ font-size:14.5px; color:rgba(14,42,30,.64); }
@media (max-width:860px){ .partner-track{ grid-template-columns:1fr; gap:8px; } }

/* ---------- news ---------- */
.news-list{ display:grid; grid-template-columns: repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.news-item{ background:var(--paper); padding:34px 28px; display:flex; flex-direction:column; gap:16px; min-height:220px; }
.news-cat{ font-family:var(--mono); font-size:11px; letter-spacing:.05em; color:var(--green-700); }
.news-item h4{ font-size:17px; line-height:1.32; font-weight:500; }
.news-item .more{ margin-top:auto; font-size:13px; color:rgba(14,42,30,.5); }
@media (max-width: 860px){ .news-list{ grid-template-columns:1fr; } }

/* ---------- footer ---------- */
.footer{ background:var(--ink); color:var(--white); }
.footer .sheet > .rail, .footer .sheet > .edge{ border-color:rgba(255,255,255,.14); }
.footer .sheet{ border-top-color:rgba(255,255,255,.14); }
.footer-grid{ display:grid; grid-template-columns:1.2fr 1fr 1fr; gap:50px; }
.footer h3{ color:var(--white); font-size:clamp(1.7rem,3vw,2.3rem); max-width:12ch; margin-bottom:22px; }
.footer-body{ font-size:14.5px; color:rgba(255,255,255,.62); max-width:38ch; margin-bottom:28px; }
.footer-col h5{ font-family:var(--mono); font-size:11.5px; letter-spacing:.06em; color:rgba(255,255,255,.5); margin-bottom:16px; font-weight:400; }
.footer-col p, .footer-col a{ display:block; font-size:14.5px; color:rgba(255,255,255,.85); margin-bottom:10px; }
.footer-col a:hover{ color:var(--green-200); }
.footer-bottom{ margin-top:64px; padding-top:24px; border-top:1px solid rgba(255,255,255,.14); display:flex; justify-content:space-between; font-size:12.5px; color:rgba(255,255,255,.42); flex-wrap:wrap; gap:10px; }
@media (max-width: 860px){ .footer-grid{ grid-template-columns:1fr; gap:34px; } }

/* ---------- utility ---------- */
.small-cap{ font-family:var(--mono); font-size:12px; letter-spacing:.06em; color:var(--green-700); margin-bottom:16px; display:block; }