:root {
  --bg: #061014;
  --bg-2: #091a20;
  --panel: rgba(13, 29, 36, 0.72);
  --panel-2: rgba(255, 255, 255, 0.055);
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.2);
  --text: #f7f2ea;
  --muted: #b8c4c4;
  --muted-2: #83979a;
  --copper: #d9864d;
  --copper-2: #f4b07c;
  --teal: #55d6cf;
  --teal-2: #15606a;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
  --radius: 24px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(217, 134, 77, 0.14), transparent 34rem),
    radial-gradient(circle at 84% 14%, rgba(85, 214, 207, 0.12), transparent 34rem),
    linear-gradient(180deg, #061014 0%, #071419 42%, #04090c 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
p { color: var(--muted); line-height: 1.72; }

.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.section { padding: 96px 0; position: relative; }
.section.compact { padding: 72px 0 28px; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -60px;
  z-index: 9999;
  background: var(--text);
  color: #061014;
  padding: 12px 16px;
  border-radius: 999px;
  transition: top .2s ease;
}
.skip-link:focus { top: 16px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  background: rgba(4, 11, 14, 0.76);
  backdrop-filter: blur(18px);
}
.nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 750; letter-spacing: -0.02em; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(217,134,77,.55);
  border-radius: 14px;
  color: var(--copper-2);
  background: rgba(217,134,77,.08);
  font-size: 13px;
}
.brand-text { font-family: Georgia, "Times New Roman", serif; font-size: 24px; }
.site-nav { display: flex; align-items: center; gap: 28px; color: #d9e1e0; font-size: 14px; }
.site-nav a:not(.nav-cta) { position: relative; color: rgba(247,242,234,.82); }
.site-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -9px;
  height: 2px;
  background: linear-gradient(90deg, var(--copper), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.site-nav a:hover::after { transform: scaleX(1); }
.nav-cta {
  padding: 11px 16px;
  border: 1px solid rgba(217,134,77,.62);
  border-radius: 999px;
  color: var(--copper-2);
  background: rgba(217,134,77,.06);
}
.nav-toggle { display: none; }

.hero { padding-top: 104px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.03fr .97fr; gap: 58px; align-items: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 32px; height: 1px; background: linear-gradient(90deg, var(--teal), transparent); }
h1, h2, h3 { margin: 0; line-height: 1.04; }
h1, h2 { font-family: Georgia, "Times New Roman", serif; letter-spacing: -0.045em; }
h1 { margin-top: 20px; font-size: clamp(48px, 6.3vw, 86px); max-width: 780px; }
h1 span { color: var(--copper-2); }
.lead { margin: 24px 0 0; font-size: 18px; max-width: 660px; color: #cbd4d2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 760;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #120b07; background: linear-gradient(135deg, var(--copper-2), var(--copper)); box-shadow: 0 12px 34px rgba(217,134,77,.2); }
.btn-secondary { border: 1px solid rgba(85,214,207,.42); color: #d8fffb; background: rgba(85,214,207,.06); }
.btn-ghost { border: 1px solid rgba(255,255,255,.16); color: var(--text); background: rgba(255,255,255,.05); }
.metrics { margin-top: 34px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.metric {
  min-height: 116px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,.045);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06);
}
.metric strong { display: block; font-size: 28px; color: var(--text); letter-spacing: -0.04em; }
.metric span { display: block; margin-top: 8px; font-size: 12.5px; color: var(--muted); line-height: 1.35; }

.hero-visual {
  position: relative;
  min-height: 630px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 36px;
  overflow: hidden;
  background:
    radial-gradient(circle at 70% 20%, rgba(85,214,207,.2), transparent 18rem),
    radial-gradient(circle at 22% 82%, rgba(217,134,77,.18), transparent 18rem),
    linear-gradient(140deg, rgba(255,255,255,.08), rgba(255,255,255,.025));
  box-shadow: var(--shadow);
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: -1px;
  background:
    linear-gradient(115deg, rgba(255,255,255,.03), transparent 45%),
    repeating-linear-gradient(130deg, rgba(255,255,255,.055) 0 1px, transparent 1px 34px);
}
.orbit { position: absolute; border: 1px solid rgba(85,214,207,.26); border-radius: 999px; transform: rotate(-18deg); }
.orbit-a { width: 560px; height: 180px; right: -120px; top: 160px; }
.orbit-b { width: 420px; height: 150px; left: -140px; bottom: 92px; border-color: rgba(217,134,77,.24); }
.visual-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 22px;
  background: rgba(4,12,16,.7);
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 45px rgba(0,0,0,.34);
  font-weight: 760;
}
.visual-card svg { width: 58px; fill: none; stroke: var(--copper-2); stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.mine-card { left: 36px; top: 56px; }
.plane-card { right: 28px; top: 96px; }
.plane-card svg { stroke: var(--teal); }
.dashboard-card {
  position: absolute;
  left: 70px;
  right: 44px;
  bottom: 64px;
  min-height: 292px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 28px;
  background: rgba(2,9,12,.76);
  backdrop-filter: blur(20px);
  box-shadow: 0 30px 70px rgba(0,0,0,.5);
  padding: 18px;
}
.dash-top { display: flex; gap: 8px; padding-bottom: 16px; border-bottom: 1px solid rgba(255,255,255,.08); }
.dash-top span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.28); }
.dash-top span:nth-child(1) { background: var(--copper); }
.dash-top span:nth-child(2) { background: var(--teal); }
.dash-grid { display: grid; grid-template-columns: .9fr .7fr; gap: 14px; padding-top: 16px; }
.chart { min-height: 94px; border-radius: 18px; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.08); }
.chart-bars { display: flex; align-items: end; gap: 9px; padding: 14px; }
.chart-bars i { flex: 1; border-radius: 999px 999px 4px 4px; background: linear-gradient(180deg, var(--teal), rgba(85,214,207,.16)); }
.chart-bars i:nth-child(1) { height: 42%; } .chart-bars i:nth-child(2) { height: 64%; } .chart-bars i:nth-child(3) { height: 50%; } .chart-bars i:nth-child(4) { height: 84%; } .chart-bars i:nth-child(5) { height: 58%; }
.chart-ring { position: relative; display: grid; place-items: center; }
.chart-ring::before { content: ""; width: 58px; height: 58px; border-radius: 50%; background: conic-gradient(var(--copper) 0 38%, var(--teal) 38% 78%, rgba(255,255,255,.12) 78%); }
.chart-ring::after { content: ""; position: absolute; width: 34px; height: 34px; border-radius: 50%; background: #061014; }
.chart-line { grid-column: span 2; padding: 14px; }
.chart-line svg path { fill: none; stroke: var(--copper-2); stroke-width: 5; stroke-linecap: round; }
.list { display: none; }
.route-map .node { position: absolute; width: 10px; height: 10px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 8px rgba(85,214,207,.12), 0 0 28px var(--teal); }
.n1 { left: 18%; top: 42%; } .n2 { left: 48%; top: 28%; } .n3 { right: 18%; top: 52%; } .n4 { right: 32%; bottom: 28%; background: var(--copper)!important; box-shadow: 0 0 0 8px rgba(217,134,77,.12), 0 0 28px var(--copper)!important; }

.split { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; align-items: start; }
.split h2, .section-head h2, .credentials h2, .collaboration-card h2 { margin-top: 14px; font-size: clamp(34px, 4vw, 54px); }
.split p { margin: 42px 0 0; font-size: 17px; }
.section-head { max-width: 760px; margin-bottom: 34px; }

.expertise-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.glass-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255,255,255,.065), rgba(255,255,255,.026));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.07);
  padding: 26px;
}
.glass-card h3 { margin-top: 22px; font-size: 21px; letter-spacing: -0.03em; }
.glass-card p { margin-bottom: 0; font-size: 14.5px; }
.icon { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 18px; font-size: 28px; border: 1px solid currentColor; background: rgba(255,255,255,.035); }
.icon-copper { color: var(--copper-2); }
.icon-teal { color: var(--teal); }

.projects-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.project-card {
  min-height: 382px;
  display: grid;
  grid-template-rows: 170px 1fr;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.045);
  box-shadow: 0 20px 60px rgba(0,0,0,.22);
  transition: transform .25s ease, border-color .25s ease;
}
.project-card:hover { transform: translateY(-5px); border-color: rgba(217,134,77,.46); }
.project-art { position: relative; overflow: hidden; background: #0c1a20; }
.project-art::before, .project-art::after { content: ""; position: absolute; inset: 0; }
.project-art::before { opacity: .92; }
.project-art::after { background: linear-gradient(180deg, transparent, rgba(6,16,20,.72)); }
.art-mining::before { background: radial-gradient(circle at 20% 28%, #e09856, transparent 11%), linear-gradient(140deg, #26343b, #121c20 42%, #6b5539); clip-path: polygon(0 70%, 17% 50%, 31% 62%, 45% 30%, 62% 62%, 78% 38%, 100% 68%, 100% 100%, 0 100%); }
.art-mining { background: linear-gradient(135deg,#1c292d,#504030); }
.art-air { background: radial-gradient(circle at 64% 40%, rgba(85,214,207,.2), transparent 32%), linear-gradient(160deg, #7890a0, #15252d 54%); }
.art-air::before { background: linear-gradient(12deg, transparent 45%, rgba(255,255,255,.75) 46% 50%, transparent 51%), linear-gradient(150deg, transparent 35%, rgba(255,255,255,.55) 36% 42%, transparent 43%); }
.art-ggc { background: linear-gradient(135deg,#17352f,#0a1918); }
.art-ggc::before { background: radial-gradient(circle at 36% 60%, #43d47a 0 12%, transparent 13%), linear-gradient(90deg, transparent 0 16%, rgba(255,255,255,.18) 17% 18%, transparent 19% 38%, rgba(255,255,255,.12) 39% 40%, transparent 41%); }
.art-vpp { background: linear-gradient(135deg,#d6d1c1,#31434a 65%); }
.art-vpp::before { background: linear-gradient(90deg, transparent 20%, rgba(7,16,20,.55) 21% 22%, transparent 23% 46%, rgba(7,16,20,.5) 47% 48%, transparent 49%), linear-gradient(0deg, #30434a 0 18%, transparent 19%); }
.art-kleidgo { background: linear-gradient(135deg,#2a3034,#c9c2b5); }
.art-kleidgo::before { background: repeating-linear-gradient(90deg, rgba(255,255,255,.24) 0 6px, transparent 7px 28px), linear-gradient(180deg, transparent 0 36%, rgba(0,0,0,.4) 37%); }
.art-sahab { background: linear-gradient(135deg,#3d3024,#0c1a20); }
.art-sahab::before { background: repeating-linear-gradient(90deg, rgba(217,134,77,.22) 0 2px, transparent 3px 28px), repeating-linear-gradient(0deg, rgba(255,255,255,.1) 0 2px, transparent 3px 34px); }
.project-content { padding: 24px; }
.project-content h3 { font-size: 23px; letter-spacing: -0.035em; }
.project-content p { font-size: 14.7px; margin: 14px 0 20px; }
.project-content span {
  display: inline-flex;
  padding: 8px 11px;
  border: 1px solid rgba(85,214,207,.25);
  border-radius: 999px;
  color: #bffdf8;
  background: rgba(85,214,207,.06);
  font-size: 12px;
  font-weight: 760;
}

.background-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 22px; align-items: stretch; }
.credentials { padding: 30px 0; }
.check-list { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 14px; }
.check-list li { color: var(--muted); line-height: 1.5; position: relative; padding-left: 32px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--copper-2); font-weight: 900; }
.timeline { position: relative; padding: 32px 32px 32px 42px; }
.timeline::before { content: ""; position: absolute; left: 24px; top: 42px; bottom: 42px; width: 1px; background: linear-gradient(var(--copper), var(--teal)); }
.timeline-item { position: relative; display: grid; grid-template-columns: 82px 1fr; gap: 18px; padding: 0 0 28px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before { content: ""; position: absolute; left: -24px; top: 5px; width: 11px; height: 11px; border-radius: 50%; background: #071419; border: 2px solid var(--copper-2); }
.timeline-item strong { color: var(--copper-2); }
.timeline-item span { color: var(--muted); line-height: 1.5; }

.collaboration-card, .contact-card {
  border: 1px solid var(--line);
  border-radius: 32px;
  background:
    radial-gradient(circle at 90% 20%, rgba(85,214,207,.14), transparent 24rem),
    radial-gradient(circle at 8% 82%, rgba(217,134,77,.12), transparent 22rem),
    rgba(255,255,255,.045);
  box-shadow: var(--shadow);
}
.collaboration-card { padding: 48px; display: grid; grid-template-columns: 1.15fr .85fr; gap: 34px; align-items: center; }
.collaboration-card p { font-size: 16.5px; }
.chips { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.chips span {
  display: grid;
  place-items: center;
  min-height: 52px;
  border: 1px solid rgba(85,214,207,.28);
  border-radius: 999px;
  background: rgba(85,214,207,.07);
  color: #dbfffb;
  font-weight: 760;
  font-size: 14px;
}
.contact-section { padding-top: 32px; }
.contact-card { padding: 38px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.contact-location { display: flex; align-items: center; gap: 20px; }
.pin { width: 68px; height: 68px; border-radius: 24px; display: grid; place-items: center; color: var(--copper-2); border: 1px solid rgba(217,134,77,.45); background: rgba(217,134,77,.08); font-size: 32px; }
.contact-location h2 { font-size: 34px; }
.contact-location p { margin: 8px 0 0; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; }

.site-footer { border-top: 1px solid var(--line); padding: 26px 0; color: var(--muted); }
.footer-grid { display: flex; align-items: center; justify-content: space-between; gap: 18px; font-size: 14px; }
.footer-grid strong { color: var(--text); font-family: Georgia, "Times New Roman", serif; font-size: 22px; }
.footer-note { color: var(--copper-2); }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1040px) {
  .hero-grid, .split, .background-grid, .collaboration-card { grid-template-columns: 1fr; }
  .expertise-grid, .projects-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-visual { min-height: 540px; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .section { padding: 70px 0; }
  .nav-toggle {
    display: inline-grid;
    gap: 5px;
    width: 44px;
    height: 44px;
    place-content: center;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255,255,255,.04);
  }
  .nav-toggle span:not(.sr-only) { width: 20px; height: 2px; background: var(--text); }
  .site-nav {
    position: absolute;
    left: 14px;
    right: 14px;
    top: 82px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(4,11,14,.96);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 14px 12px; }
  .hero { padding-top: 76px; }
  .metrics, .expertise-grid, .projects-grid, .chips { grid-template-columns: 1fr; }
  .hero-visual { min-height: 460px; border-radius: 28px; }
  .visual-card { transform: scale(.82); transform-origin: left top; }
  .plane-card { right: -6px; }
  .dashboard-card { left: 20px; right: 20px; bottom: 34px; min-height: 240px; }
  .dash-grid { grid-template-columns: 1fr; }
  .chart-ring { display: none; }
  .chart-line { grid-column: auto; }
  .contact-card { flex-direction: column; align-items: stretch; }
  .contact-location { align-items: flex-start; }
  .contact-actions { justify-content: flex-start; }
  .footer-grid { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
}