/* ============================================================
   DESIGN TOKENS
============================================================ */
:root {
  --ember:       #0e3b35;
  --ember-mid:   #163d38;
  --ember-deep:  #071f1c;
  --amber:       #8dc63f;
  --amber-light: #aad44e;
  --white:       #FFFFFF;
  --neutral-50:  #F8FAFC;
  --neutral-800: #1E293B;
  --body-text:   #475569;
  --border:      #E2E8F0;
  --shadow:      0 4px 24px rgba(14,59,53,0.1);
  --radius-card: 12px;
  --nls-yellow:    #FFD100;
  --nls-green:     #005526;
  --nls-green-ink: #002912;
}

/* ============================================================
   RESET & BASE
============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: var(--white);
  color: var(--neutral-800);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--amber); color: #fff; }
img { display: block; max-width: 100%; }
a { text-decoration: none; }

/* ============================================================
   NAVIGATION
============================================================ */
.nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 1320px;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid rgba(141,198,63,0.3);
  border-radius: 18px;
  padding: 8px 18px 8px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 8px 32px -8px rgba(14,59,53,0.12);
  transition: background 0.3s ease;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo-img {
  height: 80px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 10px rgba(141, 198, 63, 0.35));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  color: var(--ember);
  font-size: 13.5px;
  font-weight: 500;
  padding: 9px 14px;
  border-radius: 10px;
  transition: all 0.25s ease;
  letter-spacing: -0.005em;
}

.nav-links a:hover {
  color: var(--amber);
  background: rgba(141,198,63,0.1);
}

.nav-cta {
  background: var(--nls-yellow);
  color: var(--nls-green-ink) !important;
  font-weight: 700 !important;
  padding: 10px 18px !important;
  border-radius: 10px !important;
  margin-left: 8px;
  transition: transform 0.2s ease, box-shadow 0.2s ease !important;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px -4px rgba(255,209,0,0.5);
  background: var(--nls-yellow) !important;
  color: var(--nls-green-ink) !important;
}

/* Dropdown */
.nav-dropdown { position: relative; }

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--ember);
  font-size: 13.5px;
  font-weight: 500;
  padding: 9px 14px;
  border-radius: 10px;
  transition: all 0.25s ease;
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
  letter-spacing: -0.005em;
}

.nav-dropdown-toggle:hover {
  color: var(--amber);
  background: rgba(141,198,63,0.1);
}

.nav-dropdown-toggle svg {
  width: 12px; height: 12px;
  stroke: currentColor;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.nav-dropdown.open .nav-dropdown-toggle svg { transform: rotate(180deg); }

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 220px;
  background: rgba(7,31,28,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,209,0,0.15);
  border-radius: 14px;
  padding: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 300;
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.5);
}

.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  color: rgba(255,255,255,0.8);
  font-size: 13.5px;
  font-weight: 500;
  transition: all 0.18s ease;
}

.nav-dropdown-menu a:hover {
  background: rgba(255,209,0,0.1);
  color: var(--nls-yellow);
}

.nav-dropdown-menu a .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--nls-yellow);
  opacity: 0.5;
  flex-shrink: 0;
  transition: opacity 0.18s ease;
}

.nav-dropdown-menu a:hover .dot { opacity: 1; }
.nav-dropdown-menu a.current { color: var(--nls-yellow); background: rgba(255,209,0,0.08); }
.nav-dropdown-menu a.current .dot { opacity: 1; }

/* ============================================================
   HERO
============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 140px 64px 80px;
  overflow: hidden;
  color: white;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/Powerplant.png');
  background-size: cover;
  background-position: center 40%;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    rgba(7,31,28,0.97) 0%,
    rgba(14,59,53,0.88) 45%,
    rgba(14,59,53,0.62) 100%
  );
  z-index: 1;
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(141,198,63,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(141,198,63,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-energy-line {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--amber), var(--amber-light), transparent);
  z-index: 3;
  opacity: 0.5;
}

.hero-left {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-right {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--amber);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.6s ease 0.1s forwards;
}

.hero-eyebrow::before { content: '[ '; }
.hero-eyebrow::after  { content: ' ]'; }

.hero-h1 {
  font-size: clamp(38px, 4.5vw, 62px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.025em;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.7s ease 0.25s forwards;
}

.hero-h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--amber) 0%, var(--amber-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 17px;
  line-height: 1.65;
  color: #ffffff;
  max-width: 500px;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeUp 0.7s ease 0.4s forwards;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  opacity: 0;
  animation: fadeUp 0.7s ease 0.55s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
}

.btn-primary {
  background: var(--amber);
  color: var(--ember-deep, #071f1c);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -8px rgba(141,198,63,0.55);
}

.btn-ghost {
  background: rgba(255,255,255,0.08);
  color: white;
  border: 1px solid rgba(255,255,255,0.18);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.14);
  border-color: rgba(255,255,255,0.3);
}

/* Floating stats panel */
.hero-stats-card {
  background: rgba(14,59,53,0.88);
  border: 1px solid rgba(141,198,63,0.22);
  border-radius: 20px;
  padding: 32px;
  backdrop-filter: blur(24px);
  width: 300px;
  opacity: 0;
  animation: fadeUp 0.9s ease 0.55s forwards;
  box-shadow: 0 32px 80px -20px rgba(0,0,0,0.65), inset 0 1px 0 rgba(255,255,255,0.04);
}

.hero-stats-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0.85;
}

.status-dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34,197,94,0.5);
  animation: pulse 2s ease infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%  { box-shadow: 0 0 0 0 rgba(34,197,94,0.5); }
  70% { box-shadow: 0 0 0 8px rgba(34,197,94,0); }
  100%{ box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

.hero-stat-item {
  padding: 16px 0;
  border-bottom: 1px solid rgba(141,198,63,0.1);
}
.hero-stat-item:last-child { border-bottom: none; padding-bottom: 0; }

.hero-stat-value {
  font-family: 'Archivo', sans-serif;
  font-size: 36px;
  font-weight: 800;
  color: white;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stat-value span {
  font-size: 16px;
  color: var(--amber);
  font-weight: 600;
}

.hero-stat-desc {
  font-size: 12px;
  color: #ffffff;
  font-weight: 500;
}

/* ============================================================
   REVEAL
============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.22,1,0.36,1),
              transform 0.8s cubic-bezier(0.22,1,0.36,1);
}
.reveal.in-view { opacity: 1; transform: none; }

/* ============================================================
   SHARED
============================================================ */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 16px;
  display: block;
}
.eyebrow::before { content: '[ '; }
.eyebrow::after  { content: ' ]'; }

/* ============================================================
   WHO WE ARE
============================================================ */
.about {
  padding: 120px 0;
  background: var(--neutral-50);
  position: relative;
  overflow: hidden;
}

.about::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(141,198,63,0.05), transparent 70%);
  pointer-events: none;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-content h2 {
  font-size: clamp(30px, 3.5vw, 44px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ember);
  margin-bottom: 20px;
}

.about-content p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--body-text);
  margin-bottom: 16px;
}

.about-image-wrap {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  box-shadow: 0 40px 80px -20px rgba(14,59,53,0.22);
}

.about-image-wrap img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.about-image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(141,198,63,0.12) 0%, transparent 60%);
  pointer-events: none;
}

.about-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background: rgba(14,59,53,0.92);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(141,198,63,0.28);
  border-radius: 12px;
  padding: 14px 18px;
  z-index: 2;
}

.about-badge-heading {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  opacity: 0.7;
  margin-bottom: 10px;
}

.about-badge-values {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.about-badge-values span {
  font-size: 12px;
  font-weight: 700;
  color: white;
  background: rgba(141,198,63,0.12);
  border: 1px solid rgba(141,198,63,0.22);
  border-radius: 999px;
  padding: 4px 11px;
  letter-spacing: 0.01em;
}

/* ============================================================
   IMPACT METRICS
============================================================ */
.metrics {
  padding: 80px 0;
  background: var(--ember);
  position: relative;
  overflow: hidden;
}

.metrics::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(141,198,63,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(141,198,63,0.06) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid rgba(141,198,63,0.14);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.metric-item {
  padding: 44px 32px;
  border-right: 1px solid rgba(141,198,63,0.1);
  text-align: center;
  position: relative;
}
.metric-item:last-child { border-right: none; }

.metric-item::after {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 0; height: 2px;
  background: var(--amber);
  transition: width 0.6s cubic-bezier(0.22,1,0.36,1);
}

.metric-item.in-view::after { width: 60px; }

.metric-val {
  font-family: 'Archivo', sans-serif;
  font-size: clamp(36px, 4vw, 54px);
  font-weight: 900;
  color: white;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 10px;
}

.metric-val .unit {
  font-size: 0.45em;
  color: var(--amber);
  vertical-align: super;
  font-weight: 700;
}

.metric-label {
  font-size: 12.5px;
  color: rgba(255,255,255,0.45);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================================
   WHY CHOOSE US
============================================================ */
.why {
  padding: 120px 0;
  background: white;
}

.why-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 64px;
}

.why-header h2 {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ember);
  margin-bottom: 16px;
}

.why-header p {
  font-size: 16px;
  color: var(--body-text);
  line-height: 1.7;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.why-card {
  background: white;
  padding: 28px 24px;
  border-radius: 14px;
  border: 1.5px solid rgba(14,59,53,0.07);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.22,1,0.36,1),
              transform 0.8s cubic-bezier(0.22,1,0.36,1),
              border-color 0.35s ease,
              box-shadow 0.35s ease;
}

.why-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(141,198,63,0.1) 0%, transparent 55%),
              radial-gradient(ellipse at bottom right, rgba(14,59,53,0.05), transparent 70%);
  opacity: 0;
  transition: opacity 0.5s ease;
  z-index: 0;
  pointer-events: none;
}

.why-card::after {
  content: '';
  position: absolute;
  bottom: -40px; right: -40px;
  width: 140px; height: 140px;
  background-image: radial-gradient(circle at 2px 2px, rgba(141,198,63,0.15) 1.5px, transparent 0);
  background-size: 12px 12px;
  opacity: 0;
  transition: opacity 0.5s ease;
  z-index: 0;
  pointer-events: none;
}

.why-card.in-view { opacity: 1; transform: translateY(0); }

.why-grid .why-card:nth-child(1).in-view { transition-delay: 0s,   0s,   0s, 0s; }
.why-grid .why-card:nth-child(2).in-view { transition-delay: 0.1s, 0.1s, 0s, 0s; }
.why-grid .why-card:nth-child(3).in-view { transition-delay: 0.2s, 0.2s, 0s, 0s; }
.why-grid .why-card:nth-child(4).in-view { transition-delay: 0.3s, 0.3s, 0s, 0s; }

.why-card:hover {
  border-color: var(--amber);
  box-shadow: 0 20px 48px -12px rgba(141,198,63,0.2),
              0 0 0 1px rgba(141,198,63,0.22);
  transform: translateY(-6px) !important;
}
.why-card:hover::before { opacity: 1; }
.why-card:hover::after  { opacity: 1; }

.why-card-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(141,198,63,0.1);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  position: relative; z-index: 1;
  transition: all 0.45s cubic-bezier(0.34,1.56,0.64,1);
}

.why-card:hover .why-card-icon {
  background: var(--ember);
  transform: rotate(-6deg) scale(1.1);
}

.why-card-icon svg {
  width: 22px; height: 22px;
  stroke: var(--amber); fill: none;
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
  transition: stroke 0.35s ease;
}

.why-card:hover .why-card-icon svg { stroke: var(--amber-light); }

.why-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--ember);
  margin-bottom: 10px;
  position: relative; z-index: 1;
  letter-spacing: -0.01em;
}

.why-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--body-text);
  position: relative; z-index: 1;
}

/* ============================================================
   THE PROJECT
============================================================ */
.project {
  padding: 120px 0;
  background: var(--neutral-50);
  position: relative;
  overflow: hidden;
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 64px;
  align-items: start;
}

.project-content h2 {
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ember);
  margin-bottom: 24px;
}

.project-content p {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--body-text);
  margin-bottom: 20px;
}

.project-quote {
  border-left: 3px solid var(--amber);
  padding: 16px 24px;
  background: rgba(141,198,63,0.06);
  border-radius: 0 10px 10px 0;
  margin: 28px 0;
}

.project-quote p {
  font-size: 16px;
  font-style: italic;
  color: var(--ember);
  font-weight: 600;
  margin: 0;
  line-height: 1.65;
}

/* Specs sidebar */
.project-specs {
  background: var(--ember);
  border-radius: 20px;
  padding: 36px 32px;
  position: sticky;
  top: 120px;
  color: white;
  box-shadow: 0 40px 80px -20px rgba(14,59,53,0.3);
}

.project-specs-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 28px;
  opacity: 0.85;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  gap: 12px;
}
.spec-row:last-of-type { border-bottom: none; }

.spec-label {
  font-size: 12.5px;
  color: rgba(255,255,255,0.5);
  font-weight: 500;
  flex: 1;
}

.spec-value {
  font-family: 'Archivo', sans-serif;
  font-size: 17px;
  font-weight: 800;
  color: white;
  letter-spacing: -0.02em;
  text-align: right;
}

.spec-value .unit {
  font-size: 11px;
  color: var(--amber);
  font-weight: 600;
  margin-left: 2px;
}

.specs-note {
  margin-top: 24px;
  padding: 14px 16px;
  background: rgba(141,198,63,0.1);
  border: 1px solid rgba(141,198,63,0.2);
  border-radius: 10px;
  font-size: 12px;
  color: rgba(255,255,255,0.55);
  line-height: 1.65;
}

/* ============================================================
   TECHNOLOGY — 4-STEP PROCESS
============================================================ */
.process {
  padding: 120px 0;
  background: white;
}

.process-header {
  text-align: center;
  max-width: 580px;
  margin: 0 auto 72px;
}

.process-header h2 {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ember);
  margin-bottom: 16px;
}

.process-header p {
  font-size: 16px;
  color: var(--body-text);
  line-height: 1.7;
}

.process-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.process-flow::before {
  content: '';
  position: absolute;
  top: 44px;
  left: calc(12.5% + 44px);
  right: calc(12.5% + 44px);
  height: 2px;
  background: linear-gradient(90deg, var(--amber), var(--amber-light), var(--amber));
  z-index: 0;
  opacity: 0;
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 1.4s cubic-bezier(0.22,1,0.36,1) 0.3s,
              opacity 0.4s ease 0.3s;
}

.process-flow.in-view::before {
  opacity: 0.45;
  transform: scaleX(1);
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.process-step-num {
  width: 88px; height: 88px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  box-shadow: var(--shadow);
  transform: scale(0.55);
  opacity: 0;
  transition: transform 0.65s cubic-bezier(0.34,1.56,0.64,1),
              opacity 0.4s ease,
              background 0.5s ease,
              border-color 0.5s ease,
              box-shadow 0.5s ease;
}

.process-step.in-view .process-step-num {
  transform: scale(1);
  opacity: 1;
  border-color: var(--amber);
  background: var(--ember);
  box-shadow: 0 12px 32px -8px rgba(141,198,63,0.35);
}

.process-step-num svg {
  width: 32px; height: 32px;
  stroke: var(--body-text); fill: none;
  stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round;
  transition: stroke 0.5s ease;
}

.process-step.in-view .process-step-num svg { stroke: var(--amber); }

.step-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--amber);
  margin-bottom: 8px;
  font-weight: 500;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.process-step.in-view .step-label {
  opacity: 1;
  transform: translateY(0);
}

.process-step h4 {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ember);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.process-step p {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--body-text);
}

/* Staggered entrance — each step 0.18s after the previous */
.process-flow .process-step:nth-child(1).in-view { transition-delay: 0s; }
.process-flow .process-step:nth-child(1).in-view .process-step-num { transition-delay: 0.1s, 0.1s, 0.1s, 0.1s, 0.1s; }
.process-flow .process-step:nth-child(1).in-view .step-label  { transition-delay: 0.4s, 0.4s; }

.process-flow .process-step:nth-child(2).in-view { transition-delay: 0.18s; }
.process-flow .process-step:nth-child(2).in-view .process-step-num { transition-delay: 0.28s, 0.28s, 0.28s, 0.28s, 0.28s; }
.process-flow .process-step:nth-child(2).in-view .step-label  { transition-delay: 0.58s, 0.58s; }

.process-flow .process-step:nth-child(3).in-view { transition-delay: 0.36s; }
.process-flow .process-step:nth-child(3).in-view .process-step-num { transition-delay: 0.46s, 0.46s, 0.46s, 0.46s, 0.46s; }
.process-flow .process-step:nth-child(3).in-view .step-label  { transition-delay: 0.76s, 0.76s; }

.process-flow .process-step:nth-child(4).in-view { transition-delay: 0.54s; }
.process-flow .process-step:nth-child(4).in-view .process-step-num { transition-delay: 0.64s, 0.64s, 0.64s, 0.64s, 0.64s; }
.process-flow .process-step:nth-child(4).in-view .step-label  { transition-delay: 0.94s, 0.94s; }

/* ============================================================
   ENVIRONMENTAL IMPACT
============================================================ */
.environmental {
  padding: 100px 0;
  background: var(--ember);
  position: relative;
  overflow: hidden;
  color: white;
}

.environmental::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(141,198,63,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(141,198,63,0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

.env-inner { position: relative; z-index: 1; }

.env-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.env-content h2 {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.env-content h2 em {
  font-style: normal;
  color: var(--amber);
}

.env-content p {
  font-size: 15.5px;
  line-height: 1.75;
  color: rgba(255,255,255,0.62);
  margin-bottom: 16px;
}

.env-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.env-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: rgba(141,198,63,0.1);
  border: 1px solid rgba(141,198,63,0.22);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--amber-light);
}

.env-pill::before { content: '✓ '; }

.env-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.env-stat-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(141,198,63,0.12);
  border-radius: 14px;
  padding: 24px;
  transition: all 0.3s ease;
}

.env-stat-card:hover {
  background: rgba(141,198,63,0.07);
  border-color: rgba(141,198,63,0.28);
}

.env-stat-icon {
  width: 36px; height: 36px;
  background: rgba(141,198,63,0.12);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.env-stat-icon svg {
  width: 18px; height: 18px;
  stroke: var(--amber); fill: none;
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}

.env-stat-val {
  font-family: 'Archivo', sans-serif;
  font-size: 26px;
  font-weight: 800;
  color: white;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.env-stat-desc {
  font-size: 12.5px;
  color: rgba(255,255,255,0.45);
  line-height: 1.55;
}

/* ============================================================
   FOOTER — NLS Group style
============================================================ */
footer {
  background: #002912;
  color: #ffffff;
  padding: 100px 32px 32px;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #FFD100, transparent);
  opacity: 0.4;
}

.footer-top {
  max-width: 1320px;
  margin: 0 auto 64px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 60px;
}

.footer-brand .logo-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.footer-brand .logo-row img {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  object-fit: contain;
  object-fit: contain;
}

.footer-brand .logo-row .text {
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.02em;
  line-height: 1;
  color: #ffffff;
}

.footer-brand .logo-row .text small {
  display: block;
  font-size: 10px;
  color: #FFD100;
  letter-spacing: 0.22em;
  margin-top: 4px;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
}

.footer-brand p {
  color: rgba(255,255,255,0.65);
  font-size: 15px;
  line-height: 1.6;
  max-width: 360px;
  margin-bottom: 28px;
}

.socials { display: flex; gap: 10px; }

.social {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex; align-items: center; justify-content: center;
  color: #FFD100;
  text-decoration: none;
  transition: all 0.25s ease;
}
.social svg { width: 18px; height: 18px; }
.social:hover {
  background: #FFD100;
  color: #002912;
  border-color: #FFD100;
  transform: translateY(-2px);
}

.footer-col h5 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #FFD100;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.2s ease;
}

.footer-col a:hover { color: #FFD100; }

.wordmark {
  font-family: 'Archivo', sans-serif;
  font-weight: 900;
  font-size: clamp(80px, 18vw, 240px);
  line-height: 0.8;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255,209,0,0.25);
  text-align: center;
  margin-top: 40px;
  margin-bottom: -30px;
  pointer-events: none;
  user-select: none;
}

.footer-bottom {
  max-width: 1320px;
  margin: 0 auto;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  color: rgba(255,255,255,0.5);
  font-size: 13px;
}

.footer-bottom .legal { display: flex; gap: 24px; }
.footer-bottom .legal a { color: rgba(255,255,255,0.5); text-decoration: none; }
.footer-bottom .legal a:hover { color: #FFD100; }

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; padding: 140px 40px 80px; }
  .hero-right { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .project-grid { grid-template-columns: 1fr; }
  .project-specs { position: static; }
  .process-flow { grid-template-columns: repeat(2, 1fr); gap: 48px; }
  .process-flow::before { display: none; }
  .env-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .hero { padding: 120px 24px 64px; }
  .section-inner { padding: 0 24px; }
  .why-grid { grid-template-columns: 1fr; }
  .process-flow { grid-template-columns: 1fr; }
  .env-stats { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 16px; }
  footer { padding: 60px 24px 32px; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
}

#back-to-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 999;
  width: 48px; height: 48px; border-radius: 12px; border: none;
  background: #8dc63f; color: #0e3b35; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px -4px rgba(141,198,63,0.45);
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.3s ease, transform 0.3s ease, filter 0.2s ease;
  pointer-events: none;
}
#back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
#back-to-top:hover { transform: translateY(-3px); filter: brightness(1.1); }