:root {
  --coal: #0d0d0b;
  --carbon: #161614;
  --graphite: #1e1e1a;
  --ash: #2e2e28;
  --ember: #e8590c;
  --flame: #ff7a2f;
  --glow: #ffb366;
  --cream: #f5f0e8;
  --warm-white: #faf7f2;
  --muted: #8a8578;
  --green: #4a9668;
  --steel: #5a7a8a;
 }

 *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
 html { scroll-behavior: smooth; }
 body {
  background: var(--coal);
  color: var(--cream);
  font-family: 'Barlow', sans-serif;
  font-weight: 300;
  line-height: 1.65;
  overflow-x: hidden;
 }

 /* NAV */
 nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.2rem 3rem;
  background: rgba(13,13,11,0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(232,89,12,0.15);
 }
 .nav-logo { display: flex; align-items: center; gap: 0.6rem; }
 .nav-logo img { height: 34px; opacity: 0.95; }
 .nav-wordmark {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.4rem; letter-spacing: 0.08em; color: var(--cream);
 }
 .nav-links { display: flex; gap: 2.5rem; list-style: none; }
 .nav-links a {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 600; font-size: 0.75rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); text-decoration: none;
  transition: color 0.2s;
 }
 .nav-links a:hover { color: var(--flame); }
 .nav-flags { font-size: 1.1rem; opacity: 0.7; }

 /* HERO */
 .hero {
  position: relative; min-height: 100vh;
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; overflow: hidden;
 }
 .hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 70% 50%, rgba(232,89,12,0.12) 0%, transparent 70%),
        linear-gradient(180deg, var(--coal) 0%, var(--carbon) 100%);
 }
 .hero-thermal {
  position: absolute; right: 0; top: 0; bottom: 0; width: 52%;
  overflow: hidden;
 }
 .hero-thermal img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  opacity: 0.5; filter: saturate(1.3);
 }
 .hero-thermal::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--coal) 0%, rgba(13,13,11,0.2) 55%, transparent 100%);
 }
 .hero-content {
  position: relative; z-index: 2;
  padding: 9rem 3rem 6rem 5rem; max-width: 660px;
 }
 .hero-eyebrow {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 600; font-size: 0.72rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--ember);
  margin-bottom: 1.5rem;
  display: flex; align-items: center; gap: 0.75rem;
 }
 .hero-eyebrow::before {
  content: ''; display: block; width: 2rem; height: 1px; background: var(--ember);
 }
 .hero-title {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(3rem, 5.5vw, 4.8rem);
  line-height: 1.02; color: var(--warm-white); margin-bottom: 1.5rem;
 }
 .hero-title em { font-style: italic; color: var(--flame); }
 .hero-sub {
  font-size: 1.1rem; color: rgba(245,240,232,0.72);
  max-width: 500px; margin-bottom: 3rem; line-height: 1.75;
 }
 .hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2rem; padding-top: 2rem;
  border-top: 1px solid var(--ash);
 }
 .stat-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.4rem; color: var(--flame); line-height: 1;
 }
 .stat-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.68rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted); margin-top: 0.3rem;
 }

 
 .hero-scale {
  margin-top: 1.6rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--ash);
  border-radius: 16px;
  background: rgba(0,0,0,0.18);
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 0.9rem;
  max-width: 720px;
 }
 .hero-scale .scale-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(245,240,232,0.70);
  margin-right: 0.2rem;
 }
 .hero-scale .scale-item {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(245,240,232,0.78);
  white-space: nowrap;
 }
 .hero-scale .dot {
  color: rgba(245,240,232,0.35);
 }
/* MARQUEE */
 .marquee-band {
  background: var(--ember); padding: 0.85rem 0; overflow: hidden; white-space: nowrap;
 }
 .marquee-inner {
  display: inline-flex; gap: 3rem;
  animation: marquee 24s linear infinite;
 }
 .marquee-inner span {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1rem; letter-spacing: 0.15em; color: var(--coal);
 }
 @keyframes marquee {
  0% { transform: translateX(0); } 100% { transform: translateX(-50%); }
 }

 /* SECTION BASE */
 section { padding: 6rem 5rem; }
 .section-eyebrow {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 600; font-size: 0.72rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--ember);
  margin-bottom: 1rem;
  display: flex; align-items: center; gap: 0.75rem;
 }
 .section-eyebrow::before {
  content: ''; display: block; width: 2rem; height: 1px; background: var(--ember);
 }
 .section-title {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2rem, 3.5vw, 3rem);
  line-height: 1.1; color: var(--warm-white); margin-bottom: 1.5rem;
 }
 .section-body {
  font-size: 1rem; color: rgba(245,240,232,0.65);
  max-width: 640px; line-height: 1.8;
 }

 /* CHARGE SOURCES — key new section */
 .charge-section { background: var(--carbon); }
 .charge-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 2rem; margin-top: 3rem;
 }
 .charge-card {
  background: var(--graphite); border: 1px solid var(--ash);
  padding: 2.5rem 2rem; position: relative;
  transition: border-color 0.2s;
 }
 .charge-card:hover { border-color: var(--ember); }
 .charge-card.primary { border-left: 3px solid var(--flame); }
 .charge-card.secondary { border-left: 3px solid var(--steel); }
 .charge-icon { font-size: 2rem; margin-bottom: 1rem; }
 .charge-title {
  font-family: 'DM Serif Display', serif;
  font-size: 1.4rem; color: var(--warm-white); margin-bottom: 0.75rem;
 }
 .charge-body {
  font-size: 0.9rem; color: var(--muted); line-height: 1.7;
 }
 .charge-body strong { color: var(--cream); }
 .charge-tag {
  display: inline-block; margin-top: 1.5rem;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.68rem; letter-spacing: 0.15em; text-transform: uppercase;
  padding: 0.3rem 0.7rem; border: 1px solid;
 }
 .charge-tag.solar { color: var(--flame); border-color: var(--flame); }
 .charge-tag.grid { color: var(--steel); border-color: var(--steel); }

 /* MATERIALS — two-material section */
 .materials-section { background: var(--coal); }
 .materials-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2rem; margin-top: 3rem;
 }
 .material-card {
  background: var(--graphite); border: 1px solid var(--ash);
  overflow: hidden;
 }
 .material-img img {
  width: 100%; display: block; height: 260px;
  object-fit: cover; filter: sepia(0.1);
 }
 .material-body { padding: 2rem; }
 .material-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1rem; letter-spacing: 0.15em;
  color: var(--ember); margin-bottom: 0.5rem;
 }
 .material-name {
  font-family: 'DM Serif Display', serif;
  font-size: 1.5rem; color: var(--warm-white); margin-bottom: 0.5rem;
 }
 .material-sub {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 1rem;
 }
 .material-desc {
  font-size: 0.88rem; color: var(--muted); line-height: 1.7;
 }
 .material-desc strong { color: var(--cream); font-weight: 500; }
 .material-props {
  display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem;
 }
 .prop-tag {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.65rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  background: var(--ash); color: var(--muted);
 }

 /* FIELD VALIDATION */
 .field-section { background: var(--carbon); }
 .field-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 5rem; align-items: start; margin-top: 3rem;
 }
 .charts-panel {
  background: var(--graphite); border: 1px solid var(--ash); padding: 1.5rem;
 }
 .charts-panel img { width: 100%; display: block; }
 .charts-caption {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--muted); margin-top: 1rem; text-align: center;
 }
 .feature-cards { display: flex; flex-direction: column; gap: 1.2rem; }
 .feature-card {
  background: var(--graphite); border: 1px solid var(--ash);
  border-left: 3px solid var(--ember); padding: 1.4rem;
  transition: border-color 0.2s, background 0.2s;
 }
 .feature-card:hover { background: var(--ash); border-left-color: var(--flame); }
 .feature-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 0.9rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--cream); margin-bottom: 0.35rem;
 }
 .feature-body { font-size: 0.85rem; color: var(--muted); line-height: 1.65; }

 /* GATEWAY */
 .gateway-section { background: var(--graphite); }
 .gateway-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 5rem; align-items: center; margin-top: 3rem;
 }
 .gateway-flow {
  display: flex; flex-direction: column; gap: 0;
 }
 .flow-step {
  display: flex; align-items: flex-start; gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--ash);
 }
 .flow-step:last-child { border-bottom: none; }
 .flow-icon {
  font-size: 1.8rem; min-width: 2.5rem; text-align: center; margin-top: 0.1rem;
 }
 .flow-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 0.8rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ember); margin-bottom: 0.3rem;
 }
 .flow-text { font-size: 0.88rem; color: var(--muted); line-height: 1.65; }
 .flow-text strong { color: var(--cream); }

 /* PRODUCTS */
 .products-section { background: var(--coal); }
 .products-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem; margin-top: 3rem;
 }
 .product-card {
  background: var(--graphite); border: 1px solid var(--ash);
  padding: 2rem 1.5rem;
  transition: transform 0.2s, border-color 0.2s;
 }
 .product-card:hover { transform: translateY(-4px); border-color: var(--ember); }
 .product-kwh {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3rem; color: var(--ember); line-height: 1;
 }
 .product-unit {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.72rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 1rem;
 }
 .product-name {
  font-family: 'DM Serif Display', serif;
  font-size: 1.2rem; color: var(--warm-white); margin-bottom: 0.6rem;
 }
 .product-desc {
  font-size: 0.8rem; color: var(--muted); line-height: 1.6; margin-bottom: 1.5rem;
 }
 .product-status {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.65rem; letter-spacing: 0.15em; text-transform: uppercase;
  padding: 0.25rem 0.6rem; border: 1px solid; display: inline-block;
 }
 .status-trial { color: var(--green); border-color: var(--green); }
 .status-scaling { color: var(--flame); border-color: var(--flame); }
 .status-dev { color: var(--muted); border-color: var(--muted); }

 /* MARKET */
 .market-section { background: var(--carbon); }
 .market-grid {
  display: grid; grid-template-columns: 3fr 2fr;
  gap: 5rem; align-items: center; margin-top: 3rem;
 }
 .context-stats {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
 }
 .context-stat {
  text-align: center; padding: 1.5rem 1rem;
  border: 1px solid var(--ash); background: var(--graphite);
 }
 .context-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.8rem; color: var(--flame); display: block;
 }
 .context-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.68rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted); margin-top: 0.3rem;
 }

 /* COMPARISON */
 .compare-section { background: var(--coal); }
 .compare-table {
  width: 100%; border-collapse: collapse;
  margin-top: 3rem; font-size: 0.88rem;
 }
 .compare-table th {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 0.68rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--muted);
  text-align: left; padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--ash);
 }
 .compare-table td {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(46,46,40,0.5);
  color: rgba(245,240,232,0.6);
 }
 .compare-table tr.highlight { background: rgba(232,89,12,0.08); }
 .compare-table tr.highlight td {
  color: var(--cream); border-left: 2px solid var(--ember);
 }
 .compare-table td:first-child { font-weight: 500; color: var(--cream); }

 /* TEAM */
 .team-section { background: var(--graphite); }
 .team-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2rem; margin-top: 3rem;
 }
 .team-card {
  background: var(--carbon); border: 1px solid var(--ash); padding: 2.5rem 2rem;
 }
 .team-initials {
  width: 52px; height: 52px; background: var(--ash);
  border: 2px solid var(--ember);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Bebas Neue', sans-serif; font-size: 1.1rem;
  letter-spacing: 0.05em; color: var(--ember); margin-bottom: 1.5rem;
 }
 
 .team-photo {
  width: 140px; height: 140px;
  border-radius: 12px;
  border: 2px solid var(--ash);
  object-fit: cover;
  margin-bottom: 1.25rem;
  background: var(--graphite);
 }
.team-name {
  font-family: 'DM Serif Display', serif;
  font-size: 1.2rem; color: var(--warm-white); margin-bottom: 0.25rem;
 }
 .team-role {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.68rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ember); margin-bottom: 1rem;
 }
 .team-bio { font-size: 0.83rem; color: var(--muted); line-height: 1.7; }

 /* PARTNERS */
 .partners-section { background: var(--coal); }
 .partners-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 3rem; margin-top: 3rem;
 }
 .partner-card {
  background: var(--graphite); border: 1px solid var(--ash); padding: 2.5rem;
 }
 .partner-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.68rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--ember); margin-bottom: 0.75rem;
 }
 .partner-name {
  font-family: 'DM Serif Display', serif;
  font-size: 1.4rem; color: var(--warm-white); margin-bottom: 1rem;
 }
 .partner-desc {
  font-size: 0.88rem; color: var(--muted); line-height: 1.7;
 }

 /* CONTACT */
 .contact-section {
  background: var(--ember); padding: 6rem 5rem;
  display: flex; flex-direction: column; align-items: center; text-align: center;
 }
 .contact-title {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--coal); max-width: 700px; margin-bottom: 1rem;
 }
 .contact-sub { font-size: 1rem; color: rgba(13,13,11,0.6); margin-bottom: 2.5rem; }
 .contact-btn {
  display: inline-block; padding: 1rem 2.5rem;
  background: var(--coal); color: var(--cream);
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 0.85rem; letter-spacing: 0.15em;
  text-transform: uppercase; text-decoration: none;
  transition: background 0.2s;
 }
 .contact-btn:hover { background: var(--graphite); }
 .contact-locations {
  display: flex; gap: 3rem; margin-top: 2.5rem;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.85rem; letter-spacing: 0.05em;
  color: rgba(13,13,11,0.6);
 }

 /* FOOTER */
 footer {
  background: var(--coal); border-top: 1px solid var(--ash);
  padding: 2rem 5rem;
  display: flex; align-items: center; justify-content: space-between;
 }
 .footer-copy {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.75rem; letter-spacing: 0.08em; color: var(--muted);
 }
 .footer-ip {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.72rem; color: var(--muted); letter-spacing: 0.05em;
 }

 /* ANIMATIONS */
 .fade-up {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
 }
 .fade-up.visible { opacity: 1; transform: translateY(0); }

 /* RESPONSIVE */
 @media (max-width: 900px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  section { padding: 4rem 1.5rem; }
  .hero { grid-template-columns: 1fr; }
  .hero-thermal { display: none; }
  .hero-content { padding: 8rem 1.5rem 4rem; }
  .charge-grid, .materials-grid, .gateway-grid,
  .field-grid, .market-grid, .partners-grid { grid-template-columns: 1fr; gap: 2rem; }
  .products-grid { grid-template-columns: 1fr 1fr; }
  .context-stats { grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .contact-section { padding: 4rem 1.5rem; }
  .contact-locations { flex-direction: column; gap: 0.5rem; }
  footer { padding: 2rem 1.5rem; flex-direction: column; gap: 0.5rem; }
 }


/* Materials: two-column text blocks */
.materials-two-col{display:grid;grid-template-columns:1fr;gap:1.25rem;margin-top:2.25rem}
@media (min-width: 900px){.materials-two-col{grid-template-columns:1fr 1fr;gap:1.5rem}}
.materials-col{background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.08);border-radius:18px;padding:1.5rem}
.materials-col-title{font-family:'Barlow Condensed',sans-serif;font-size:1.15rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ember);margin-bottom:.35rem}
.materials-col-sub{font-family:'Barlow Condensed',sans-serif;font-size:.9rem;letter-spacing:.04em;color:var(--muted);margin-bottom:.9rem}
.materials-col-body{color:rgba(255,255,255,0.86);line-height:1.55;margin:.6rem 0}

.materials-photo-row{display:grid;grid-template-columns:1fr;gap:1rem;margin-top:1.5rem}
@media (min-width: 900px){.materials-photo-row{grid-template-columns:1fr 1fr;gap:1.5rem}}
.materials-photo{border-radius:18px;overflow:hidden;border:1px solid rgba(255,255,255,0.08);background:rgba(0,0,0,0.2)}
.materials-photo img{width:100%;height:260px;object-fit:cover;display:block;filter:sepia(0.08) contrast(1.02)}
.materials-photo figcaption{padding:.75rem 1rem;font-family:'Barlow Condensed',sans-serif;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);background:rgba(0,0,0,0.35)}

.materials-bullets{margin:1rem 0 0 1.1rem;color:rgba(255,255,255,0.84)}
.materials-bullets li{margin:.4rem 0}