/* ========================================
   ENERGY & ENGINEERING EPC
   Investor-Grade Corporate Website
   Design Tier: Bechtel / Fluor / KBR
   ======================================== */

:root {
  /* ── Brand from Logo ── */
  --crimson: #C41E3A;
  --crimson-50: #FDF2F4;
  --crimson-100: #F9E0E5;
  --crimson-hover: #D92B4A;
  --crimson-dark: #A01830;
  --navy: #0A1628;
  --navy-90: #0D1C32;
  --navy-80: #132742;
  --navy-70: #1A3358;
  --navy-text: #152035;

  /* ── Neutrals ── */
  --white: #FFFFFF;
  --off-white: #FAFBFC;
  --warm-bg: #F5F4F2;
  --gray-50: #F0F1F3;
  --gray-100: #E2E4E8;
  --gray-200: #C8CCD4;
  --gray-300: #97A0AE;
  --gray-400: #6C7689;
  --gray-500: #4A5568;
  --gray-600: #333D4D;
  --gray-700: #1D2736;
  --black: #0C1018;

  /* ── Layout ── */
  --max-w: 1320px;
  --section-py: 140px;
  --gap: 32px;

  /* ── Type ── */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* ── Motion ── */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --dur: 0.4s;
  --dur-slow: 0.7s;

  /* ── Shadows ── */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.10);
  --shadow-xl: 0 32px 64px rgba(0,0,0,0.14);
}

/* ══════════════════════════════════════
   RESET
   ══════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--navy-text);
  line-height: 1.7;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; height: auto; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: var(--font); cursor: pointer; border: none; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gap); }

/* ══════════════════════════════════════
   TYPOGRAPHY — ALL CAPS HEADINGS
   ══════════════════════════════════════ */
h1, h2, h3, h4 {
  font-family: var(--font);
  text-transform: uppercase;
  line-height: 1.1;
  color: var(--navy-text);
}
h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 900;
  letter-spacing: 0.02em;
}
h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: 0.04em;
}
h3 {
  font-size: clamp(0.95rem, 1.6vw, 1.2rem);
  font-weight: 700;
  letter-spacing: 0.04em;
}
h4 {
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.overline {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--crimson);
  margin-bottom: 20px;
  display: block;
}
.lead {
  font-size: clamp(1rem, 1.3vw, 1.12rem);
  color: var(--navy-text);
  line-height: 1.8;
  max-width: 600px;
  font-weight: 400;
}
.divider {
  width: 40px; height: 3px;
  background: var(--crimson);
  border: none;
  margin: 20px 0 24px;
}
.text-center { text-align: center; }
.text-center .lead { margin: 0 auto; }
.text-center .divider { margin: 20px auto 24px; }

/* ══════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 18px 44px;
  border: 2px solid transparent;
  transition: all var(--dur) var(--ease);
}
.btn--primary {
  background: var(--crimson);
  color: var(--white);
  border-color: var(--crimson);
}
.btn--primary:hover {
  background: var(--crimson-hover);
  border-color: var(--crimson-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(155, 27, 48, 0.25);
}
.btn--white {
  background: var(--white);
  color: var(--navy-text);
  border-color: var(--white);
}
.btn--white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.btn--outline-white {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--white);
}
.btn--outline {
  background: transparent;
  color: var(--navy-text);
  border-color: var(--gray-200);
}
.btn--outline:hover {
  border-color: var(--crimson);
  color: var(--crimson);
}
.arrow {
  display: inline-block;
  transition: transform var(--dur) var(--ease);
  font-size: 1.1em;
}
.btn:hover .arrow { transform: translateX(5px); }

/* ══════════════════════════════════════
   NAVIGATION — White, clean, logo on white
   ══════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: box-shadow var(--dur) var(--ease), background var(--dur);
}
.nav.scrolled {
  box-shadow: 0 1px 12px rgba(0,0,0,0.06);
  background: rgba(255,255,255,0.98);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: -24px;
  flex-shrink: 0;
}
.nav__logo img { height: 52px; }
.nav__brand {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.nav__brand-name {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--navy-text);
  letter-spacing: 0.04em;
  line-height: 1.1;
  text-transform: uppercase;
  white-space: nowrap;
}
.nav__brand-tagline {
  font-size: 0.44rem;
  font-weight: 700;
  color: var(--crimson);
  letter-spacing: 0.1em;
  line-height: 1.2;
  text-transform: uppercase;
  white-space: nowrap;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 14px;
}
.nav__link {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--navy-text);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
  padding: 6px 0;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--crimson);
  transition: width var(--dur) var(--ease);
}
.nav__link:hover { color: var(--navy-text); }
.nav__link:hover::after { width: 100%; }
.nav__cta {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--crimson);
  padding: 14px 32px;
  transition: all var(--dur) var(--ease);
}
.nav__cta:hover {
  background: var(--crimson-hover);
  box-shadow: 0 4px 16px rgba(155, 27, 48, 0.2);
}
.nav__toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.nav__toggle span { width: 22px; height: 2px; background: var(--navy); transition: var(--dur); }

/* ══════════════════════════════════════
   HERO — Deep navy, sophisticated
   ══════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--navy);
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  background: linear-gradient(160deg, #0B1829 0%, #0F2340 35%, #152D50 65%, #0D1E35 100%);
}
.hero__pattern {
  position: absolute; inset: 0;
  opacity: 0.025;
  background-image:
    linear-gradient(rgba(255,255,255,1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,1) 1px, transparent 1px);
  background-size: 80px 80px;
}
.hero__accent {
  position: absolute;
  top: 10%; right: -5%;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(155, 27, 48, 0.1) 0%, transparent 65%);
  border-radius: 50%;
  filter: blur(40px);
}
.hero__accent-2 {
  position: absolute;
  bottom: -20%; left: 10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(30, 58, 104, 0.3) 0%, transparent 60%);
  border-radius: 50%;
  filter: blur(60px);
}
.hero__content {
  position: relative; z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 180px var(--gap) 120px;
}
.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 48px;
}
.hero__tag::before {
  content: '';
  width: 48px; height: 1px;
  background: var(--crimson);
}
.hero h1 {
  color: var(--white);
  max-width: 840px;
  margin-bottom: 28px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--crimson) 0%, var(--crimson-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__sub {
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  color: var(--white);
  max-width: 540px;
  line-height: 1.85;
  margin-bottom: 52px;
  font-weight: 400;
}
.hero__actions {
  display: flex;
  gap: 16px;
  margin-bottom: 100px;
  flex-wrap: wrap;
}
.hero__metrics {
  display: flex;
  gap: 64px;
  padding-top: 52px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.metric__value {
  font-size: 3rem;
  font-weight: 900;
  color: var(--white);
  line-height: 1;
  letter-spacing: -0.02em;
}
.metric__value span { color: var(--crimson); }
.metric__label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--white);
  margin-top: 10px;
}

/* ══════════════════════════════════════
   SECTIONS
   ══════════════════════════════════════ */
.section { padding: var(--section-py) 0; }
.section--warm { background: var(--warm-bg); }
.section--gray { background: var(--gray-50); }
.section--dark { background: var(--navy); }
.section--dark h2 { color: var(--crimson); }
.section--dark h3, .section--dark h4 { color: var(--white); }
.section--dark .overline { color: var(--crimson); }
.section--dark .lead { color: var(--white); }
.section--dark .divider { background: var(--crimson); }
.section__header { margin-bottom: 72px; }

/* ══════════════════════════════════════
   ABOUT
   ══════════════════════════════════════ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 96px;
  align-items: start;
}
.about__text .lead { margin-bottom: 20px; }
.about__features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 48px;
}
.feature {
  padding: 32px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  transition: all var(--dur) var(--ease);
  position: relative;
}
.feature::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 0;
  background: var(--crimson);
  transition: height var(--dur) var(--ease);
}
.feature:hover {
  border-color: var(--gray-200);
  box-shadow: var(--shadow-sm);
}
.feature:hover::before { height: 100%; }
.feature__number {
  font-size: 0.6rem;
  font-weight: 800;
  color: var(--crimson);
  letter-spacing: 0.2em;
  margin-bottom: 14px;
}
.feature h4 { margin-bottom: 8px; color: var(--navy-text); }
.feature p { font-size: 0.85rem; color: var(--navy-text); line-height: 1.6; }

.about__visual { position: relative; }
.about__card {
  background: var(--navy);
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
}
.about__card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--crimson);
}
.about__card-item {
  margin-bottom: 36px;
  padding-left: 28px;
  border-left: 1px solid rgba(255,255,255,0.06);
}
.about__card-item:last-child { margin-bottom: 0; }
.about__card-item h4 { color: var(--white); font-size: 0.92rem; margin-bottom: 8px; }
.about__card-item p { color: var(--white); font-size: 0.84rem; line-height: 1.7; }

.about__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 32px;
  background: var(--white);
  border: 1px solid var(--gray-100);
}
.about__stat {
  text-align: center;
  padding: 32px 16px;
  border-right: 1px solid var(--gray-100);
}
.about__stat:last-child { border-right: none; }
.about__stat-value {
  font-size: 2rem;
  font-weight: 900;
  color: var(--crimson);
  line-height: 1;
  letter-spacing: -0.02em;
}
.about__stat-label {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--navy-text);
  margin-top: 8px;
}

/* ══════════════════════════════════════
   SERVICES — Grid with dividers
   ══════════════════════════════════════ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
}
.service {
  background: var(--white);
  padding: 52px 40px;
  transition: background var(--dur) var(--ease);
  position: relative;
}
.service::after {
  content: '';
  position: absolute;
  bottom: 0; left: 40px; right: 40px;
  height: 2px;
  background: var(--crimson);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}
.service:hover { background: var(--off-white); }
.service:hover::after { transform: scaleX(1); }
.service__icon {
  width: 44px; height: 44px;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--crimson);
  background: var(--crimson-50);
  border-radius: 50%;
}
.service h3 { margin-bottom: 16px; color: var(--navy-text); }
.service p { font-size: 0.86rem; color: var(--navy-text); line-height: 1.75; margin-bottom: 24px; }
.service__tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--navy-text);
  background: var(--gray-50);
  padding: 5px 12px;
  border: 1px solid var(--gray-100);
}

/* ══════════════════════════════════════
   TECHNOLOGY
   ══════════════════════════════════════ */
.tech__grid {
  display: grid;
  grid-template-columns: 55fr 45fr;
  gap: 40px;
}
.tech__main {
  border: 1px solid rgba(255,255,255,0.08);
  padding: 60px;
  position: relative;
  overflow: hidden;
}
.tech__main::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--crimson), var(--crimson-hover));
}
.tech__main h3 { font-size: 1.5rem; margin-bottom: 24px; }
.tech__main p { color: var(--white); font-size: 0.9rem; line-height: 1.85; margin-bottom: 16px; }
.tech__compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 36px;
}
.compare { padding: 32px; }
.compare--old {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
}
.compare--new {
  background: rgba(155, 27, 48, 0.08);
  border: 1px solid rgba(155, 27, 48, 0.15);
}
.compare__label {
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 14px;
}
.compare--new .compare__label { color: var(--crimson); }
.compare__val {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--white);
  line-height: 1;
  margin-bottom: 8px;
}
.compare--new .compare__val { color: var(--crimson-hover); }
.compare__desc { font-size: 0.78rem; color: var(--white); line-height: 1.6; }

.tech__cards { display: flex; flex-direction: column; gap: 16px; }
.tech-card {
  border: 1px solid rgba(255,255,255,0.06);
  padding: 40px;
  transition: all var(--dur) var(--ease);
}
.tech-card:hover {
  border-color: rgba(155, 27, 48, 0.2);
  background: rgba(255,255,255,0.015);
}
.tech-card h4 { font-size: 0.95rem; margin-bottom: 12px; }
.tech-card p { font-size: 0.84rem; color: var(--white); line-height: 1.75; }
.tech-card__badge {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--crimson);
  background: rgba(155, 27, 48, 0.08);
  padding: 6px 16px;
  border: 1px solid rgba(155, 27, 48, 0.12);
}

/* ══════════════════════════════════════
   PROJECTS
   ══════════════════════════════════════ */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.project {
  border: 1px solid var(--gray-100);
  overflow: hidden;
  transition: all var(--dur) var(--ease);
  background: var(--white);
}
.project:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.project__head {
  background: var(--navy);
  padding: 36px 32px;
  position: relative;
}
.project__head::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--crimson);
}
.project__country {
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--crimson);
  margin-bottom: 10px;
}
.project__head h3 { color: var(--white); font-size: 0.95rem; line-height: 1.35; }
.project__body { padding: 32px; }
.project__body p { font-size: 0.84rem; color: var(--navy-text); line-height: 1.75; margin-bottom: 24px; }
.project__stats { display: flex; gap: 28px; }
.pstat__val { font-size: 1.5rem; font-weight: 900; color: var(--navy-text); line-height: 1; }
.pstat__label {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy-text);
  margin-top: 6px;
}

/* ══════════════════════════════════════
   LEADERSHIP
   ══════════════════════════════════════ */
.leaders__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.leader {
  display: flex;
  gap: 32px;
  padding: 52px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  transition: all var(--dur) var(--ease);
}
.leader:hover { box-shadow: var(--shadow-md); border-color: transparent; }
.leader__avatar {
  width: 88px; height: 88px;
  background: var(--navy);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: 0.04em;
}
.leader__photo {
  width: 88px; height: 88px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 3px solid var(--gray-100);
}
.leader--full {
  display: flex;
  gap: 32px;
  padding: 52px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  transition: all var(--dur) var(--ease);
}
.leader--full:hover { box-shadow: var(--shadow-md); border-color: transparent; }
.leader--full .leader__photo {
  width: 120px; height: 120px;
  border: 3px solid var(--crimson);
}
.leader__name { font-size: 1.1rem; color: var(--navy-text); margin-bottom: 4px; }
.leader__role {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--crimson);
  margin-bottom: 16px;
}
.leader__bio { font-size: 0.86rem; color: var(--navy-text); line-height: 1.7; }
.leader__numbers { display: flex; gap: 24px; margin-top: 24px; }
.leader__num-val { font-size: 1.4rem; font-weight: 900; color: var(--navy-text); line-height: 1; }
.leader__num-label {
  font-size: 0.55rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--navy-text);
  margin-top: 4px;
}

/* ══════════════════════════════════════
   GEOGRAPHY
   ══════════════════════════════════════ */
.geo__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: 1000px;
  margin: 0 auto 72px;
}
.geo-tag {
  padding: 14px 28px;
  border: 1px solid rgba(255,255,255,0.08);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--white);
  transition: all var(--dur) var(--ease);
  letter-spacing: 0.02em;
}
.geo-tag:hover {
  border-color: var(--crimson);
  color: var(--white);
  background: rgba(155, 27, 48, 0.1);
}
.geo__metrics {
  display: flex;
  justify-content: center;
  gap: 96px;
}
.geo__metric { text-align: center; }
.geo__metric-val {
  font-size: 3.8rem;
  font-weight: 900;
  color: var(--white);
  line-height: 1;
  letter-spacing: -0.02em;
}
.geo__metric-val span { color: var(--crimson); }
.geo__metric-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white);
  margin-top: 12px;
}

/* ══════════════════════════════════════
   CONTACT
   ══════════════════════════════════════ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 96px;
  align-items: start;
}
.contact__items {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 48px;
}
.contact__item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.contact__icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--crimson-50);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--crimson);
  font-size: 1rem;
}
.contact__item h4 { font-size: 0.82rem; color: var(--navy-text); margin-bottom: 4px; }
.contact__item p { font-size: 0.88rem; color: var(--navy-text); line-height: 1.65; }
.contact__item a { color: var(--crimson); font-weight: 600; }
.contact__item a:hover { text-decoration: underline; }

.contact__form {
  background: var(--gray-50);
  padding: 56px;
  border: 1px solid var(--gray-100);
}
.contact__form h3 { margin-bottom: 32px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy-text);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--gray-200);
  font-family: var(--font);
  font-size: 0.88rem;
  background: var(--white);
  transition: border-color var(--dur) var(--ease);
  outline: none;
  color: var(--navy-text);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--crimson); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-submit {
  width: 100%;
  padding: 18px;
  background: var(--navy);
  color: var(--white);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background var(--dur) var(--ease);
}
.form-submit:hover { background: var(--navy-80); }

/* ══════════════════════════════════════
   FOOTER
   ══════════════════════════════════════ */
.footer {
  background: var(--navy);
  color: var(--white);
  padding: 88px 0 40px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2.5fr 1fr 1fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.footer__brand-text {
  font-size: 0.86rem;
  line-height: 1.75;
  margin-top: 28px;
  max-width: 340px;
}
.footer__col h4 {
  color: var(--white);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  margin-bottom: 24px;
}
.footer__col a {
  display: block;
  font-size: 0.84rem;
  margin-bottom: 12px;
  text-transform: none;
  letter-spacing: 0;
  transition: color var(--dur) var(--ease);
}
.footer__col a:hover { color: var(--white); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  font-size: 0.72rem;
  color: var(--white);
}

/* ══════════════════════════════════════
   FULL-CYCLE PIPELINE FLOW (pflow)
   Zigzag layout — blue/indigo arrow style
   ══════════════════════════════════════ */

/* Section override: near-black background */
#capability { background: #060b14 !important; }
#capability h2 { color: var(--white); }

/* Container */
.pflow {
  position: relative;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  height: 560px;
  counter-reset: pflow-step;
}

/* Endpoint dots */
.pflow::before,
.pflow::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #5369e8;
  box-shadow: 0 0 14px rgba(83,105,232,0.9), 0 0 30px rgba(83,105,232,0.4);
  z-index: 5;
  top: calc(240px - 9px);   /* vertically centred on the connector pipe row */
}
.pflow::before { left: -9px; }
.pflow::after  {
  top: calc(240px + 280px - 9px);   /* lower row */
  right: -9px;
}

/* ── Card columns ── */
.pflow__col { position: absolute; z-index: 2; counter-increment: pflow-step; }
.pflow__col:nth-child(1) { top: 0;     left: 0; }
.pflow__col:nth-child(3) { top: 280px; left: 25%; }
.pflow__col:nth-child(5) { top: 0;     left: 50%; }
.pflow__col:nth-child(7) { top: 280px; left: 75%; }

/* ── Cards ── */
.pflow__card {
  display: block;
  width: 220px;
  text-align: center;
  border: 2px solid rgba(83,105,232,0.7);
  border-radius: 18px;
  padding: 20px 14px 16px;
  background: rgba(8,14,28,0.95);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.35s ease;
  position: relative;
  z-index: 2;
  box-shadow: 0 0 22px rgba(83,105,232,0.12), inset 0 0 24px rgba(83,105,232,0.03);
}
.pflow__card:hover {
  border-color: rgba(83,105,232,1);
  box-shadow: 0 0 50px rgba(83,105,232,0.4), 0 0 90px rgba(83,105,232,0.12);
  transform: translateY(-6px) scale(1.03);
}
.pflow__card h3 {
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 12px 0 4px;
}
.pflow__card p {
  color: rgba(255,255,255,0.6);
  font-size: 0.75rem;
  font-weight: 400;
  margin: 0 0 12px;
}

/* Step number badge */
.pflow__card::before {
  content: counter(pflow-step);
  position: absolute;
  top: -13px;
  right: -13px;
  width: 28px;
  height: 28px;
  background: #5369e8;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 900;
  line-height: 28px;
  text-align: center;
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(83,105,232,0.7);
  z-index: 3;
}

/* ── Card images ── */
.pflow__img {
  width: 100%;
  height: 130px;
  border-radius: 10px;
  overflow: hidden;
}
.pflow__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.pflow__card:hover .pflow__img img { transform: scale(1.08); }

/* ── Vertical connector pipes (blue, with arrowheads) ── */
.pflow__pipe {
  position: relative;
  width: 3px;
  height: 50px;
  background: rgba(83,105,232,0.85);
  box-shadow: 0 0 10px rgba(83,105,232,0.6);
  margin: 0 auto;
  z-index: 1;
}
.pflow__pipe::before,
.pflow__pipe::after { content: none; }

/* Arrowhead pointing down (after Exploration & Refinery cards) */
.pflow__pipe--down {
  margin: 0 auto 0;
}
.pflow__pipe--down::after {
  content: '';
  position: absolute;
  bottom: -9px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 10px solid rgba(83,105,232,0.9);
}

/* Arrowhead pointing up (before Field Dev & Commercialization cards) */
.pflow__pipe--up {
  margin: 0 auto 0;
}
.pflow__pipe--up::before {
  content: '';
  position: absolute;
  top: -9px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-bottom: 10px solid rgba(83,105,232,0.9);
}

/* ── Horizontal connector pipes ── */
.pflow__hpipe {
  position: absolute;
  height: 3px;
  background: rgba(83,105,232,0.85);
  box-shadow: 0 0 10px rgba(83,105,232,0.6);
  z-index: 1;
  border-radius: 2px;
}
.pflow__hpipe::before,
.pflow__hpipe::after { content: none; }

/* hpipe 1: Exploration-down → Field Dev (low row, y≈240+50=290) */
.pflow__hpipe:nth-child(2) {
  top: 289px;
  left: 110px;
  width: calc(25% - 0px);
}
/* hpipe 2: Field Dev → Refinery (high row, y≈50) */
.pflow__hpipe:nth-child(4) {
  top: 9px;
  left: calc(25% + 110px);
  width: calc(25%);
}
/* hpipe 3: Refinery-down → Commercialization (low row) */
.pflow__hpipe:nth-child(6) {
  top: 289px;
  left: calc(50% + 110px);
  width: calc(25%);
}

/* Glow pulse on pipes */
@keyframes pipeGlow {
  0%, 100% { opacity: 0.85; }
  50%       { opacity: 1; }
}
.pflow__pipe,
.pflow__hpipe { animation: pipeGlow 3s ease-in-out infinite; }

/* ══════════════════════════════════════
   TECH HERO (Zeoforming expanded)
   ══════════════════════════════════════ */
.tech__hero {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 56px;
  align-items: start;
  border: 1px solid rgba(255,255,255,0.08);
  padding: 60px;
  position: relative;
  overflow: hidden;
  margin-bottom: 0;
}
.tech__hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--crimson), var(--crimson-hover));
}
.tech__hero-content h3 { margin-bottom: 24px; }
.tech__hero-content p {
  color: var(--white);
  font-size: 0.9rem;
  line-height: 1.85;
}
.tech__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.tech__stat { text-align: center; }
.tech__stat-val {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--white);
  line-height: 1;
}
.tech__stat-val span { color: var(--crimson); }
.tech__stat-label {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--white);
  margin-top: 6px;
}
.tech__hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.tech__patent-img {
  max-width: 280px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

/* ══════════════════════════════════════
   ANIMATIONS
   ══════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Counter animation */
@keyframes countUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════ */
@media (max-width: 1100px) {
  :root { --section-py: 100px; }
  .about__grid, .tech__grid, .contact__grid, .leaders__grid, .tech__hero { grid-template-columns: 1fr; }
  /* Pipeline: stack into 2x2 grid on tablet */
  .pflow { height: auto; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; justify-items: center; }
  .pflow__col { position: static !important; counter-increment: pflow-step; }
  .pflow__col--down { margin-top: 0; }
  .pflow__hpipe { display: none; }
  .pflow__pipe { display: none; }
  .pflow::before, .pflow::after { display: none; }
  .tech__stats { grid-template-columns: repeat(2, 1fr); }
  .about__grid { gap: 56px; }
  .services__grid, .projects__grid { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .hero__metrics { flex-wrap: wrap; gap: 36px; }
  .geo__metrics { flex-wrap: wrap; gap: 48px; }
}
@media (max-width: 1024px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .nav__links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 88px; left: 0; right: 0;
    background: var(--white);
    padding: 24px var(--gap);
    gap: 16px;
    border-bottom: 1px solid var(--gray-100);
    box-shadow: var(--shadow-md);
    z-index: 999;
  }
  .nav__links.active .nav__cta { width: fit-content; }
}
@media (max-width: 768px) {
  :root { --section-py: 72px; --gap: 20px; }
  .services__grid, .projects__grid { grid-template-columns: 1fr; }
  /* Pipeline: single column on mobile */
  .pflow { grid-template-columns: 1fr; }
  .pflow__card { width: 100%; max-width: 280px; }
  .tech__hero { padding: 32px; }
  .tech__stats { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 2rem; }
  .hero__metrics { gap: 24px; }
  .metric__value { font-size: 2.2rem; }
  .form-row { grid-template-columns: 1fr; }
  .tech__compare { grid-template-columns: 1fr; }
  .leader { flex-direction: column; padding: 32px; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom { flex-direction: column; gap: 8px; text-align: center; }
  .geo__metric-val { font-size: 2.6rem; }
  .about__features { grid-template-columns: 1fr; }
  .about__stats { grid-template-columns: 1fr 1fr; }
  .about__stat { border-bottom: 1px solid var(--gray-100); }
  .section-nav { bottom: 16px; right: 12px; }
  .section-nav__btn { width: 36px; height: 36px; font-size: 0.65rem; }
}

/* ══════════════════════════════════════
   SECTION NAV ARROWS (floating)
   ══════════════════════════════════════ */
.section-nav {
  position: fixed;
  bottom: 32px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 6px;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  pointer-events: none;
}
.section-nav.visible {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}
.section-nav__btn {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  background: rgba(10,22,40,0.85);
  color: rgba(255,255,255,0.7);
  font-size: 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.section-nav__btn:hover {
  background: rgba(196,30,58,0.9);
  border-color: rgba(196,30,58,0.6);
  color: #ffffff;
  transform: scale(1.1);
}
.section-nav__btn:disabled {
  opacity: 0.25;
  cursor: default;
  transform: none;
}
.section-nav__btn:disabled:hover {
  background: rgba(10,22,40,0.85);
  border-color: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.7);
  transform: none;
}