:root {
  --navy: #0d2340;
  --navy-2: #142f50;
  --ink: #172235;
  --muted: #5d6878;
  --line: #dfe4ea;
  --soft: #f4f6f8;
  --green: #117634;
  --green-2: #2d9a46;
  --white: #ffffff;
  --shadow: 0 16px 40px rgba(13, 35, 64, .12);
  --radius: 22px;
  --max: 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(--ink); background: var(--white); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
.eyebrow { font-size: .78rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; color: var(--green); margin: 0 0 12px; }
h1, h2, h3 { line-height: 1.12; margin-top: 0; }
h1 { font-size: clamp(2.45rem, 6vw, 5.25rem); letter-spacing: -.045em; }
h2 { font-size: clamp(2rem, 4vw, 3.3rem); letter-spacing: -.03em; }
h3 { font-size: 1.25rem; }
p { margin-top: 0; }
.lead { font-size: clamp(1.05rem, 1.8vw, 1.3rem); color: #dce5ef; max-width: 760px; }
.section-lead { font-size: 1.12rem; color: var(--muted); max-width: 760px; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 16px; top: 16px; z-index: 9999; background: white; padding: 10px 14px; border-radius: 8px; }

.site-header { position: fixed; inset: 0 0 auto 0; z-index: 1000; background: rgba(13,35,64,.92); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(255,255,255,.09); }
.nav { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand img { width: 192px; height: auto; }
.nav-links { display: flex; align-items: center; gap: 22px; color: #eef3f8; font-size: .94rem; font-weight: 650; }
.nav-links a:hover, .nav-links a:focus { color: #98d7a6; }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.lang-switch { display: flex; gap: 4px; padding: 4px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; }
.lang-switch a { display: grid; place-items: center; min-width: 35px; height: 31px; border-radius: 999px; color: #dce5ef; font-size: .78rem; font-weight: 800; }
.lang-switch a.active { background: white; color: var(--navy); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 0; border-radius: 12px; background: rgba(255,255,255,.1); color: white; font-size: 1.4rem; cursor: pointer; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 20px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; cursor: pointer; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--green); color: white; box-shadow: 0 10px 25px rgba(17,118,52,.28); }
.btn-primary:hover { background: #0e672d; }
.btn-secondary { border-color: rgba(255,255,255,.36); color: white; background: rgba(255,255,255,.05); }
.btn-dark { background: var(--navy); color: white; }
.btn-ghost { border-color: var(--line); background: white; color: var(--navy); }

.hero { min-height: 780px; padding: 160px 0 96px; color: white; position: relative; overflow: hidden; background:
  radial-gradient(circle at 82% 22%, rgba(45,154,70,.23), transparent 30%),
  linear-gradient(135deg, #081a30 0%, #0d2340 57%, #123455 100%); }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .2; background-image: linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px); background-size: 42px 42px; mask-image: linear-gradient(to bottom, black, transparent 80%); }
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1.25fr .75fr; gap: 60px; align-items: center; }
.hero h1 span { color: #8dd39c; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.hero-point { padding: 8px 12px; border: 1px solid rgba(255,255,255,.16); border-radius: 999px; color: #dce5ef; font-size: .9rem; background: rgba(255,255,255,.05); }
.hero-panel { position: relative; min-height: 490px; display: grid; place-items: center; }
.process-orbit { width: 430px; height: 430px; border-radius: 50%; border: 1px solid rgba(255,255,255,.14); position: relative; display: grid; place-items: center; }
.process-orbit::before, .process-orbit::after { content: ""; position: absolute; border-radius: 50%; border: 1px dashed rgba(255,255,255,.17); }
.process-orbit::before { inset: 42px; }
.process-orbit::after { inset: 94px; }
.orbit-core { width: 175px; aspect-ratio: 1; border-radius: 50%; display: grid; place-items: center; text-align: center; padding: 22px; background: linear-gradient(145deg, var(--green), #0d5f2a); box-shadow: 0 18px 44px rgba(0,0,0,.28); font-weight: 850; }
.orbit-node { position: absolute; width: 120px; min-height: 66px; padding: 10px 12px; border-radius: 16px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.17); backdrop-filter: blur(10px); display: grid; place-items: center; text-align: center; font-size: .84rem; font-weight: 750; }
.node-1 { top: 10px; left: 155px; }
.node-2 { right: -10px; top: 165px; }
.node-3 { bottom: 0; left: 155px; }
.node-4 { left: -20px; top: 165px; }

.trust-strip { background: var(--soft); border-bottom: 1px solid var(--line); }
.trust-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.trust-item { padding: 28px 24px; border-right: 1px solid var(--line); }
.trust-item:last-child { border-right: 0; }
.trust-item strong { display: block; color: var(--navy); font-size: 1.05rem; }
.trust-item span { color: var(--muted); font-size: .92rem; }

section { padding: 100px 0; }
.section-head { display: flex; justify-content: space-between; gap: 40px; align-items: end; margin-bottom: 46px; }
.section-head > div:first-child { max-width: 760px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: white; box-shadow: 0 2px 0 rgba(13,35,64,.02); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: #c6d0db; }
.icon { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; background: #eaf5ed; color: var(--green); font-weight: 900; margin-bottom: 20px; }
.card p { color: var(--muted); }

.selective { background: var(--soft); }
.selective-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: center; }
.pyramid { width: min(100%, 520px); margin-inline: auto; padding: 24px; }
.p-level { height: 68px; display: grid; place-items: center; color: white; font-weight: 850; letter-spacing: .02em; margin: 8px auto; clip-path: polygon(7% 0,93% 0,84% 100%,16% 100%); box-shadow: 0 10px 20px rgba(13,35,64,.08); }
.p-rom { width: 100%; background: #353535; height: 82px; }
.p-pre { width: 84%; background: linear-gradient(90deg,#0a5b25,#117634); }
.p-grind { width: 69%; background: #e7e9ec; color: var(--green); }
.p-conc { width: 54%; background: #4a4a4a; }
.p-clean { width: 39%; height: 100px; background: #303033; clip-path: polygon(7% 0,93% 0,50% 100%); }
.outputs { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-top: 20px; text-align: center; font-size: .8rem; font-weight: 750; }
.output { padding: 10px; border-radius: 12px; background: white; border: 1px solid var(--line); }
.output.green { color: var(--green); }
.check-list { display: grid; gap: 14px; margin-top: 28px; }
.check { display: grid; grid-template-columns: 28px 1fr; gap: 12px; align-items: start; }
.check i { width: 26px; height: 26px; display: grid; place-items: center; border-radius: 50%; background: #e6f4ea; color: var(--green); font-style: normal; font-weight: 900; }

.method-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; margin-top: 50px; }
.method-step { position: relative; padding: 28px 22px; background: white; border: 1px solid var(--line); min-height: 210px; }
.method-step:first-child { border-radius: 20px 0 0 20px; }
.method-step:last-child { border-radius: 0 20px 20px 0; }
.method-step:not(:last-child)::after { content: "→"; position: absolute; right: -18px; top: 50%; transform: translateY(-50%); width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--green); color: white; z-index: 2; font-weight: 900; }
.step-num { font-size: .8rem; font-weight: 900; color: var(--green); letter-spacing: .12em; }

.experience { background: var(--navy); color: white; }
.experience .section-lead { color: #c9d5e2; }
.experience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.exp-card { padding: 32px; border-radius: 22px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); }
.exp-card p { color: #c9d5e2; }
.exp-card ul { padding-left: 20px; color: #e4ebf2; }

.team-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.profile { border: 1px solid var(--line); border-radius: 24px; overflow: hidden; background: white; display: grid; grid-template-columns: 160px 1fr; }
.profile-mark { display: grid; place-items: center; background: linear-gradient(150deg, var(--navy), var(--navy-2)); color: white; font-size: 2.4rem; font-weight: 900; }
.profile-body { padding: 28px; }
.profile-role { color: var(--green); font-weight: 800; font-size: .9rem; }
.profile-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.profile-meta a { font-size: .84rem; padding: 7px 10px; border-radius: 999px; background: var(--soft); border: 1px solid var(--line); }

.minerals { background: var(--soft); }
.tags { display: flex; flex-wrap: wrap; gap: 12px; }
.tag { padding: 12px 18px; border-radius: 999px; background: white; border: 1px solid var(--line); font-weight: 800; color: var(--navy); }

.cta { padding-top: 20px; }
.cta-box { border-radius: 30px; padding: 55px; color: white; background: linear-gradient(120deg, var(--green), #0e5f2b 52%, var(--navy) 140%); display: grid; grid-template-columns: 1.2fr .8fr; gap: 44px; align-items: center; box-shadow: var(--shadow); }
.cta-box h2 { margin-bottom: 14px; }
.cta-box p { color: #e2f1e6; }
.contact-links { display: grid; gap: 12px; }
.contact-link { padding: 14px 16px; border-radius: 14px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2); }
.contact-link small { display: block; color: #d7eadc; }

.site-footer { margin-top: 100px; background: #081a30; color: #d8e1eb; padding: 68px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 48px; }
.footer-logo { width: 230px; margin-bottom: 20px; }
.footer-grid h3 { color: white; font-size: 1rem; }
.footer-grid a { display: block; margin: 8px 0; color: #bfcbd8; }
.footer-bottom { margin-top: 44px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; gap: 20px; font-size: .85rem; color: #9eb0c2; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .nav-links { position: fixed; top: 78px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; padding: 24px; background: #0d2340; border-top: 1px solid rgba(255,255,255,.1); }
  .nav-links.open { display: flex; }
  .nav-actions .btn { display: none; }
  .menu-toggle { display: grid; place-items: center; }
  .hero .container, .selective-grid, .cta-box { grid-template-columns: 1fr; }
  .hero-panel { min-height: 450px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .method-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .method-step { border-radius: 18px !important; }
  .method-step::after { display: none !important; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-item:nth-child(2) { border-right: 0; }
  .trust-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .team-grid, .experience-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1/-1; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 28px, var(--max)); }
  .brand img { width: 155px; }
  .lang-switch a { min-width: 31px; }
  .hero { min-height: auto; padding-top: 132px; }
  .hero-panel { min-height: 380px; }
  .process-orbit { width: 300px; height: 300px; }
  .orbit-core { width: 130px; font-size: .8rem; }
  .orbit-node { width: 92px; min-height: 52px; font-size: .7rem; }
  .node-1 { left: 104px; }
  .node-2 { top: 120px; }
  .node-3 { left: 104px; }
  .node-4 { top: 120px; }
  .grid-3, .method-grid, .trust-grid, .footer-grid { grid-template-columns: 1fr; }
  .trust-item { border-right: 0; border-bottom: 1px solid var(--line); }
  .trust-item:last-child { border-bottom: 0; }
  section { padding: 76px 0; }
  .section-head { display: block; }
  .profile { grid-template-columns: 1fr; }
  .profile-mark { min-height: 120px; }
  .cta-box { padding: 34px 24px; }
  .footer-bottom { flex-direction: column; }
}