/* Aerixa Global Composites — Brochure-matched design system */

:root {
  --navy: #1a2d5a;
  --navy-dark: #0f1d3d;
  --navy-light: #2a4078;
  --gold: #c9a227;
  --gold-light: #dbb84a;
  --gold-dim: rgba(201, 162, 39, 0.12);
  --white: #ffffff;
  --gray-50: #f7f8fa;
  --gray-100: #eef0f4;
  --gray-200: #dde1e8;
  --gray-600: #5a6478;
  --gray-800: #2d3340;
  --text: #1e2430;
  --text-muted: #5a6478;
  --font: "Montserrat", system-ui, sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 24px rgba(26, 45, 90, 0.08);
  --shadow-lg: 0 12px 48px rgba(26, 45, 90, 0.12);
  --transition: 0.3s ease;
  --container: 1200px;
  --header-h: 76px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: var(--transition);
}

.btn--gold {
  background: var(--gold);
  color: var(--navy-dark);
}

.btn--gold:hover {
  background: var(--gold-light);
  box-shadow: 0 4px 20px rgba(201, 162, 39, 0.35);
  transform: translateY(-1px);
}

.btn--outline {
  border: 2px solid var(--white);
  color: var(--white);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn--sm { padding: 0.625rem 1.25rem; font-size: 0.8125rem; }
.btn--full { width: 100%; }

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo__word {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: 0.06em;
}

.logo__x {
  position: relative;
}

.logo__x::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  height: 3px;
  background: var(--gold);
  border-radius: 2px;
}

.logo__sub {
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--navy-light);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--navy);
  transition: color var(--transition);
}

.nav a:hover { color: var(--gold); }

.header__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 28px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--navy);
  transition: var(--transition);
}

.menu-toggle.active span:first-child { transform: rotate(45deg) translate(3px, 3px); }
.menu-toggle.active span:last-child { transform: rotate(-45deg) translate(3px, -3px); }

/* Hero */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--header-h);
  background:
    linear-gradient(135deg, rgba(26, 45, 90, 0.92) 0%, rgba(15, 29, 61, 0.88) 100%),
    url("assets/brochure-reference.png") center/cover no-repeat;
  color: var(--white);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(15, 29, 61, 0.4));
  pointer-events: none;
}

.hero__content {
  position: relative;
  padding-block: 4rem 3rem;
  max-width: 720px;
}

.hero__eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin-bottom: 1rem;
}

.hero__title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}

.hero__title span {
  color: var(--gold);
}

.hero__desc {
  font-size: 1.0625rem;
  opacity: 0.9;
  line-height: 1.75;
  margin-bottom: 2rem;
  max-width: 52ch;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Sectors bar */
.sectors-bar {
  position: relative;
  background: var(--navy-dark);
  padding-block: 1.25rem;
  border-top: 3px solid var(--gold);
}

.sectors-bar__label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-align: center;
  margin-bottom: 0.75rem;
}

.sectors-bar__icons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem 2rem;
}

.sector-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  color: var(--white);
}

.sector-icon span {
  font-size: 1.25rem;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: rgba(201, 162, 39, 0.15);
  border: 1px solid rgba(201, 162, 39, 0.35);
  border-radius: 50%;
}

.sector-icon small {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.85;
}

/* Sections */
.section {
  padding-block: 5rem;
}

.section__header {
  text-align: center;
  margin-bottom: 3rem;
}

.section__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.section__eyebrow--light { color: var(--gold-light); }

.section__title {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.01em;
}

/* About */
.about {
  background: var(--gray-50);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about__text p {
  color: var(--text-muted);
  margin-top: 1rem;
  line-height: 1.8;
}

.benefits {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.benefits__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--gold);
}

.benefits__list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.625rem;
}

.benefits__list li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text);
}

.benefit-dot {
  width: 8px;
  height: 8px;
  background: var(--navy);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Products */
.products__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.product-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.product-card:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.product-card__img {
  aspect-ratio: 4/3;
  background:
    linear-gradient(135deg, hsl(var(--hue, 200) 35% 35%) 0%, hsl(var(--hue, 200) 25% 22%) 100%);
  position: relative;
}

.product-card__img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 12px,
    rgba(255,255,255,0.04) 12px,
    rgba(255,255,255,0.04) 13px
  );
}

.product-card__body {
  padding: 1.25rem;
  border-top: 3px solid var(--gold);
}

.product-card__body h3 {
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: 0.02em;
}

.product-card__body h3 sup {
  font-size: 0.6em;
  color: var(--gold);
}

.product-card__body p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Solutions */
.solutions {
  background: var(--gray-50);
}

.solutions__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.solution-tile {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  text-align: center;
}

.solution-tile:hover {
  border-color: var(--navy-light);
  box-shadow: var(--shadow);
}

.solution-tile__img {
  aspect-ratio: 16/10;
  background:
    linear-gradient(160deg, hsl(var(--hue, 200) 40% 40%) 0%, hsl(var(--hue, 200) 30% 25%) 100%);
}

.solution-tile span {
  display: block;
  padding: 0.75rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--navy);
}

/* Why */
.why {
  background: var(--white);
}

.why__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.why__list {
  list-style: none;
  margin-top: 1.5rem;
}

.why__list li {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--navy);
}

.why-icon {
  width: 32px;
  height: 32px;
  background: var(--gold-dim);
  border: 2px solid var(--gold);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
}

.why-icon::after {
  content: "✓";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--gold);
}

.excellence__list {
  list-style: none;
  margin-top: 1.5rem;
}

.excellence__list li {
  padding: 1.25rem;
  margin-bottom: 0.75rem;
  background: var(--gray-50);
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.excellence__list strong {
  display: block;
  font-size: 0.9375rem;
  color: var(--navy);
  margin-bottom: 0.25rem;
}

.excellence__list span {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Contact */
.contact {
  background: var(--navy);
  color: var(--white);
  padding-block: 5rem;
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 2rem;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact__label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin-bottom: 0.25rem;
}

.contact__item a {
  color: var(--white);
  transition: color var(--transition);
}

.contact__item a:hover { color: var(--gold-light); }

.contact-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  color: var(--text);
}

.contact-form h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 1rem;
}

.contact-form label span {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.contact-form input,
.contact-form textarea {
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  font: inherit;
  transition: var(--transition);
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(26, 45, 90, 0.1);
}

/* Footer */
.footer {
  background: var(--navy-dark);
  color: rgba(255, 255, 255, 0.8);
  padding-block: 2.5rem;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.footer .logo__word { color: var(--white); }
.footer .logo__sub { color: rgba(255, 255, 255, 0.6); }

.footer__tagline {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gold);
  font-style: italic;
}

.footer__nav {
  display: flex;
  gap: 1.5rem;
}

.footer__nav a {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition);
}

.footer__nav a:hover { color: var(--gold); }

.footer__copy {
  font-size: 0.75rem;
  opacity: 0.5;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .products__grid { grid-template-columns: repeat(2, 1fr); }
  .solutions__grid { grid-template-columns: repeat(3, 1fr); }
  .about__grid,
  .why__grid,
  .contact__inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 1rem;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
    box-shadow: var(--shadow-lg);
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav a { padding: 0.75rem 0; border-bottom: 1px solid var(--gray-100); }
  .menu-toggle { display: flex; }
  .header__actions .btn { display: none; }

  .products__grid { grid-template-columns: 1fr; }
  .solutions__grid { grid-template-columns: repeat(2, 1fr); }
  .benefits__list { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .sectors-bar__icons { gap: 1rem; }
}

@media (max-width: 480px) {
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; }
  .solutions__grid { grid-template-columns: 1fr; }
}