:root {
  --ink: #17140f;
  --ink-soft: #4a453d;
  --paper: #ffffff;
  --paper-dim: #f6f1e7;
  --amber: #f2a53c;
  --amber-dark: #c97e1f;
  --cell: #12335c;
  --cell-light: #26507f;
  --line: rgba(23,20,15,0.1);
  --line-light: rgba(255,255,255,0.18);
  --shadow-card: 0 1px 2px rgba(23,20,15,0.04), 0 16px 32px -12px rgba(23,20,15,0.12);
  --shadow-card-hover: 0 1px 2px rgba(23,20,15,0.05), 0 24px 40px -14px rgba(23,20,15,0.18);
  font-size: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Work Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Merriweather', Georgia, serif;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

em { font-style: italic; color: var(--amber); }

.num {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-variant-numeric: tabular-nums;
}

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  margin-bottom: 16px;
  display: block;
}
.eyebrow-light { color: rgba(255,255,255,0.85); }
.eyebrow-amber { color: #ffb066; }

.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 1.5px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark:hover { background: #000; }
.btn-amber { background: var(--amber); color: #fff; }
.btn-amber:hover { background: var(--amber-dark); }
.btn-outline-light { border-color: var(--line-light); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,0.1); }
.full-width { width: 100%; text-align: center; }

/* promo bar */
.promo-bar {
  background: linear-gradient(90deg, var(--amber-dark), var(--amber));
  color: #fff;
}
.promo-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 10px 32px;
  position: relative;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
}
.promo-close {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #fff;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  opacity: 0.8;
}
.promo-close:hover { opacity: 1; }
.promo-bar.is-hidden { display: none; }

/* nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  font-family: 'Merriweather', Georgia, serif;
  font-weight: 700;
  font-size: 21px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-ring {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 3px solid var(--amber);
  box-shadow: 0 0 10px rgba(242,165,60,0.55);
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  gap: 32px;
  font-size: 15px;
  font-weight: 500;
}
.nav-links a { opacity: 0.75; }
.nav-links a:hover { opacity: 1; }
.nav-links a.is-active { opacity: 1; color: var(--amber-dark); font-weight: 600; }
.nav-cta { padding: 11px 22px; font-size: 14px; }
.nav-toggle { display: none; }

.nav-dropdown { position: relative; }
.nav-dropdown > a { display: inline-flex; align-items: center; gap: 5px; }
.nav-caret { width: 9px; height: 9px; opacity: 0.7; transition: transform 0.18s ease; }
.nav-dropdown:hover .nav-caret { transform: rotate(180deg); }
.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  margin-top: 8px;
  transform: translateX(-50%) translateY(2px);
  display: flex;
  flex-direction: column;
  width: 260px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-card-hover);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
  z-index: 60;
}
.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown-menu a {
  display: block;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  opacity: 1;
  color: var(--ink);
}
.nav-dropdown-menu a:hover { background: var(--paper-dim); color: var(--amber-dark); }
.nav-dropdown-label {
  display: block;
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  padding: 6px 14px 4px;
}
.nav-dropdown-divider { height: 1px; background: var(--line); margin: 6px 4px; }

/* hero — full-bleed 3D ground-mounted solar farm, text on top */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: linear-gradient(180deg, #3f7fbf 0%, #bfe0f5 65%, #dcecda 100%);
}
.hero-stage {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero-stage canvas { position: absolute; inset: 0; width: 100% !important; height: 100% !important; display: block; }
.hero-fallback-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.6s ease;
}
.hero-fallback-img.is-replaced { opacity: 0; }
.hero-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(9,17,28,0.88) 8%, rgba(9,17,28,0.45) 45%, rgba(9,17,28,0.1) 80%);
}
.hero-inner {
  position: relative;
  color: #fff;
  padding-top: 120px;
  padding-bottom: 72px;
}
.hero h1 {
  font-size: clamp(48px, 8vw, 92px);
  margin-bottom: 24px;
  color: #fff;
}
.hero-sub {
  max-width: 520px;
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }

/* trust strip */
.trust-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-dim); }
.trust-strip-inner {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px 32px;
}
.trust-strip-row {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.trust-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  flex-shrink: 0;
}
.trust-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
}
.trust-logos span {
  font-family: 'Merriweather', Georgia, serif;
  font-weight: 700;
  font-size: 16px;
  color: var(--ink-soft);
  opacity: 0.55;
  transition: opacity 0.2s ease, color 0.2s ease;
}
.trust-logos span:hover { opacity: 1; color: var(--cell); }

.brand-logos { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.brand-logo-chip {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 20px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.brand-logo-chip img { height: 30px; width: auto; max-width: 120px; object-fit: contain; }
.brand-logo-chip.badged { flex-direction: column; gap: 4px; height: auto; padding: 9px 20px 8px; }
.brand-logo-chip.badged img { height: 24px; }
.credential-card {
  display: flex;
  align-items: center;
  gap: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px 28px;
  box-shadow: var(--shadow-card);
  max-width: 640px;
  margin-top: 24px;
}
.credential-logo { height: 48px; width: auto; max-width: 170px; object-fit: contain; flex-shrink: 0; }
.credential-title { font-weight: 700; font-size: 16px; margin-bottom: 4px; }
.credential-sub { font-size: 13px; color: var(--ink-soft); }
.dealer-badge {
  display: inline-block;
  font-family: 'Work Sans', sans-serif;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--amber);
  color: #fff;
  padding: 2px 8px;
  border-radius: 999px;
}

/* page head band (subpages) */
.page-head { padding: 64px 0 56px; }
.breadcrumb { font-size: 13px; color: rgba(255,255,255,0.55); margin-bottom: 18px; }
.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: #fff; }
.page-head h1 { color: #fff; font-size: clamp(32px, 4.5vw, 52px); margin-bottom: 14px; max-width: 720px; }
.page-head-sub { color: rgba(255,255,255,0.78); font-size: 17px; max-width: 620px; }

/* homepage explore grid */
.explore-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.explore-card { display: block; }
.explore-card-num { font-family: 'IBM Plex Mono', 'Courier New', monospace; font-size: 13px; color: var(--amber); letter-spacing: 0.06em; }
.explore-card h3 { font-size: 20px; margin: 14px 0 10px; }
.explore-card p { color: var(--ink-soft); font-size: 14px; margin-bottom: 18px; }

/* stats */
.stats { background: var(--cell); padding: 40px 0; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat { color: #fff; text-align: left; }
.stat-num {
  display: block;
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-variant-numeric: tabular-nums;
  font-size: 32px;
  font-weight: 600;
  color: var(--amber);
}
.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
}

/* sections */
.section { padding: 110px 0; }
.section-tint { padding: 110px 0; background: var(--paper-dim); }
.section-title {
  font-size: clamp(32px, 4vw, 46px);
  max-width: 700px;
  margin-bottom: 20px;
}
.section-sub {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 560px;
}

/* about */
.about-columns {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  margin-top: 48px;
  align-items: start;
}
.about-copy { color: var(--ink-soft); font-size: 16px; margin-bottom: 24px; }
.about-highlights {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.about-highlights li {
  font-size: 15px;
  color: var(--ink-soft);
  padding-left: 20px;
  position: relative;
}
.about-highlights li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
}
.about-highlights strong { color: var(--ink); }
.about-clients {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow-card);
}
.about-clients h4 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 20px; }
.about-clients-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--amber-dark);
  margin-bottom: 6px;
}
.about-clients-list { font-size: 14px; color: var(--ink-soft); margin-bottom: 22px; }
.about-clients-list:last-child { margin-bottom: 0; }

/* client logo marquee */
.clients-heading { margin-top: 64px; margin-bottom: 24px; }
.clients-heading h3 { font-size: 20px; margin-bottom: 6px; }
.clients-heading p { font-size: 14px; color: var(--ink-soft); }
.clients-marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.clients-track {
  display: flex;
  align-items: center;
  gap: 56px;
  width: max-content;
  animation: clients-marquee 34s linear infinite;
  padding: 8px 0;
}
.clients-marquee:hover .clients-track { animation-play-state: paused; }
.clients-track img {
  height: 72px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}
.clients-track img:hover { transform: scale(1.08); }
@keyframes clients-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .clients-track { animation: none; flex-wrap: wrap; width: 100%; justify-content: center; }
}

/* achievements marquee */
.achievements-marquee {
  overflow: hidden;
  margin-top: 32px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.achievements-track {
  display: flex;
  gap: 24px;
  width: max-content;
  animation: clients-marquee 46s linear infinite;
  padding: 8px 4px 16px;
}
.achievements-marquee:hover .achievements-track { animation-play-state: paused; }
.achievement-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 26px 24px;
  width: 280px;
  flex-shrink: 0;
  box-shadow: var(--shadow-card);
}
.achievement-card h4 { font-size: 18px; margin-bottom: 10px; }
.achievement-card p { font-size: 14px; color: var(--ink-soft); }
@media (prefers-reduced-motion: reduce) {
  .achievements-track { animation: none; flex-wrap: wrap; width: 100%; }
}

.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 36px 30px;
  position: relative;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.card-featured {
  border-color: var(--cell);
  border-width: 2px;
}
.card-badge {
  position: absolute;
  top: -14px;
  left: 30px;
  background: var(--amber);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
}
.card-num {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 14px;
  color: var(--amber);
  font-weight: 600;
}
.card h3 { font-size: 22px; margin: 14px 0 12px; }
.card p { color: var(--ink-soft); font-size: 15px; margin-bottom: 20px; }
.card-link { font-weight: 600; font-size: 14px; }

/* kit types */
.kit-types-intro { margin-top: 72px; max-width: 640px; }
.kit-types-intro h3 { font-size: 26px; margin-bottom: 12px; }
.kit-types {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.kit-type-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 28px 26px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.kit-type-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.kit-type-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--amber-dark);
  background: rgba(242,165,60,0.14);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.kit-type-card h4 { font-size: 19px; margin-bottom: 10px; }
.kit-type-card p { font-size: 14px; color: var(--ink-soft); }
.kit-sizes {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 32px 0 16px;
}
.kit-size-chip {
  background: var(--cell);
  color: var(--paper);
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 999px;
}
.kit-size-chip-custom { background: var(--amber); color: #fff; }
.kit-sizes-note { font-size: 14px; color: var(--ink-soft); max-width: 640px; }

/* buy-now product grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.product-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px 22px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.product-card h4 { font-size: 17px; margin-bottom: 8px; }
.product-card p { font-size: 13px; color: var(--ink-soft); margin-bottom: 18px; flex-grow: 1; }
.buy-now-btn { align-self: flex-start; padding: 9px 20px; font-size: 13px; }

/* dark section — deep photovoltaic-cell blue, textured like a panel's cell grid */
.section-dark {
  position: relative;
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.05) 0, rgba(255,255,255,0.05) 1px, transparent 1px, transparent 64px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.05) 0, rgba(255,255,255,0.05) 1px, transparent 1px, transparent 64px),
    linear-gradient(160deg, var(--cell-light) 0%, var(--cell) 55%, #0b2038 100%);
  padding: 120px 0;
  overflow: hidden;
}
.dark-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
  mix-blend-mode: luminosity;
}
.dark-inner { position: relative; color: #fff; }
.section-title-light {
  font-size: clamp(30px, 4vw, 44px);
  max-width: 720px;
  margin-bottom: 40px;
  color: #fff;
}
.subsidy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}
.subsidy-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 20px;
  padding: 26px;
}
.subsidy-num {
  display: block;
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-variant-numeric: tabular-nums;
  font-size: 28px;
  font-weight: 600;
  color: #ffb066;
  margin-bottom: 6px;
}
.subsidy-label { font-size: 14px; color: rgba(255,255,255,0.7); }
.subsidy-note {
  max-width: 560px;
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  margin-bottom: 28px;
}

/* estimate calculator */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 32px;
  margin-top: 48px;
}
.calc-form {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 24px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.calc-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.75);
}
.calc-form input, .calc-form select {
  font-family: inherit;
  font-size: 15px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.08);
  color: #fff;
}
.calc-form select option { color: var(--ink); }
.calc-result {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 24px;
  padding: 32px;
  color: #fff;
}
.calc-placeholder { color: rgba(255,255,255,0.55); font-size: 15px; }
.calc-headline {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 26px;
  margin-bottom: 4px;
}
.calc-headline span { color: var(--amber); font-family: 'IBM Plex Mono', 'Courier New', monospace; }
.calc-subhead { font-size: 13px; color: rgba(255,255,255,0.6); margin-bottom: 24px; }
.calc-rows { display: flex; flex-direction: column; gap: 14px; margin-bottom: 20px; }
.calc-row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.calc-row:last-child { border-bottom: none; padding-bottom: 0; }
.calc-row span:first-child { color: rgba(255,255,255,0.65); }
.calc-row span:last-child {
  font-weight: 600;
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-variant-numeric: tabular-nums;
}
.calc-highlight { color: var(--amber) !important; }
.calc-disclaimer { font-size: 12px; color: rgba(255,255,255,0.45); }

/* steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px 28px;
  margin-top: 56px;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}
.step h4 { font-size: 17px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--ink-soft); }

/* discom table */
.discom-block { margin-top: 72px; }
.discom-block h3 { font-size: 26px; margin-bottom: 12px; }
.discom-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 32px;
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}
.discom-table th, .discom-table td {
  text-align: left;
  padding: 16px 22px;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}
.discom-table th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  background: var(--paper-dim);
}
.discom-table tr:last-child td { border-bottom: none; }
.discom-table td:first-child { font-weight: 600; }

/* areas */
.areas-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 40px 0 24px;
}
.area-pill {
  background: #fff;
  border: 1px solid var(--line);
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
}

/* contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.contact-details { list-style: none; margin-top: 32px; }
.contact-details li { margin-bottom: 18px; font-size: 15px; color: var(--ink-soft); }
.contact-details strong { color: var(--ink); display: block; margin-bottom: 2px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; }

.lead-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--shadow-card);
}
.lead-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
}
.lead-form input, .lead-form select {
  font-family: inherit;
  font-size: 15px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
}
.lead-form input[type="file"] { padding: 10px 14px; font-size: 14px; }
.label-optional { font-weight: 400; text-transform: none; letter-spacing: normal; color: var(--ink-soft); font-size: 12px; }
.form-success {
  display: none;
  font-size: 14px;
  color: var(--amber-dark);
  font-weight: 600;
  text-align: center;
}

/* whatsapp chat widget */
.whatsapp-widget {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}
.whatsapp-hours {
  background: #fff;
  color: var(--ink);
  font-size: 12px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 999px;
  box-shadow: var(--shadow-card);
  white-space: nowrap;
}
.whatsapp-fab {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 26px rgba(37,211,102,0.45), 0 2px 8px rgba(0,0,0,0.16);
  transition: transform 0.15s ease;
}
.whatsapp-fab:hover { transform: scale(1.08); }
.whatsapp-fab svg { width: 30px; height: 30px; }
@media (max-width: 640px) {
  .whatsapp-widget { right: 14px; bottom: 14px; }
  .whatsapp-hours { font-size: 11px; padding: 6px 12px; }
  .whatsapp-fab { width: 52px; height: 52px; }
  .whatsapp-fab svg { width: 27px; height: 27px; }
}

/* footer */
.footer { padding: 36px 0; border-top: 1px solid var(--line); }
.footer-inner {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--ink-soft);
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
  }
  .nav-toggle span { width: 22px; height: 2px; background: var(--ink); }
  .cards-3, .steps, .stats-grid, .subsidy-grid, .project-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-columns { grid-template-columns: 1fr; }
  .discom-table { font-size: 13px; }
  .kit-types { grid-template-columns: 1fr; }
  .calc-grid { grid-template-columns: 1fr; }
  .explore-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .page-head { padding: 48px 0 40px; }
  .hero { padding: 48px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 300px; margin-top: 16px; }
  .panel-stage { max-width: 280px; }
  .trust-strip-inner { justify-content: center; text-align: center; }
  .section, .section-tint { padding: 72px 0; }
  .section-dark { padding: 80px 0; }
  .promo-bar-inner { font-size: 12px; padding: 10px 44px; }
}

/* large-scale projects */
.project-group-label { margin-top: 64px; margin-bottom: 4px; }
.project-group-label:first-of-type { margin-top: 40px; }
.project-group-label h3 { font-size: 24px; margin-bottom: 8px; }
.project-group-label p { color: var(--ink-soft); font-size: 14px; max-width: 620px; }
.om-crew-row { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.om-crew-photo { width: 220px; height: 150px; object-fit: cover; border-radius: 16px; flex-shrink: 0; box-shadow: var(--shadow-card); }
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 28px;
}
.project-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.project-card-img { position: relative; height: 190px; }
.project-card-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.project-status {
  position: absolute;
  top: 14px;
  left: 14px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 5px 12px;
  border-radius: 999px;
  color: #fff;
}
.project-status-completed { background: var(--cell); }
.project-status-awarded { background: var(--amber-dark); }
.project-status-om { background: var(--cell-light); }
.project-card-body { padding: 22px 26px 26px; }
.project-card-cap {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 13px;
  color: var(--amber-dark);
  font-weight: 600;
  letter-spacing: 0.03em;
}
.project-card-body h3 { font-size: 19px; margin: 8px 0 4px; }
.project-card-loc { font-size: 13px; color: var(--ink-soft); margin-bottom: 12px; }
.project-card-body p { font-size: 14px; color: var(--ink-soft); margin-bottom: 0; }

/* product cards with photos + category tags */
.product-card-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 14px;
  background: var(--paper-dim);
}
.product-tag {
  display: inline-block;
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--amber-dark);
  background: rgba(242,165,60,0.14);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
  align-self: flex-start;
}
.product-card-links { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.product-card-links .card-link { font-size: 13px; }

/* product detail page */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 8px;
  align-items: start;
}
.product-gallery-main {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  background: var(--paper-dim);
}
.product-gallery-main img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; display: block; }
.product-gallery-thumbs { display: flex; gap: 12px; margin-top: 14px; }
.product-gallery-thumbs img {
  width: 76px;
  height: 76px;
  object-fit: cover;
  border-radius: 10px;
  border: 2px solid var(--line);
  cursor: pointer;
  opacity: 0.75;
  transition: opacity 0.15s ease, border-color 0.15s ease;
}
.product-gallery-thumbs img:hover { opacity: 1; }
.product-gallery-thumbs img.is-active { opacity: 1; border-color: var(--amber); }
.product-info h1 { font-size: clamp(26px, 3vw, 34px); margin-bottom: 16px; }
.product-info-desc { color: var(--ink-soft); font-size: 15px; margin-bottom: 22px; }
.product-features { list-style: none; margin: 0 0 28px; }
.product-features li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 14px;
  font-size: 14px;
  color: var(--ink-soft);
}
.product-features li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--amber-dark);
  font-weight: 700;
}
.product-features li strong { color: var(--ink); display: block; margin-bottom: 2px; font-size: 14.5px; }
.product-cta-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; margin-bottom: 32px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.spec-table td { padding: 11px 0; border-bottom: 1px solid var(--line); }
.spec-table td:first-child { color: var(--ink-soft); width: 42%; }
.spec-table td:last-child { font-weight: 600; }

@media (max-width: 860px) {
  .product-detail { grid-template-columns: 1fr; gap: 28px; }
}