:root {
  --page-bg: #0b1624;
  --shell-bg: #ffffff;
  --section-bg: #f5f7fb;

  --border-subtle: #dde2ec;
  --border-strong: #c2cada;

  --blue-deep: #08182b;
  --blue-main: #0f6fb5;
  --blue-soft: #d4e4f8;

  --accent-warm: #f59e0b;

  --text-main: #111827;
  --text-soft: #4b5563;
  --text-muted: #6b7280;
  --text-on-dark: #e5e7eb;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --shadow-soft: 0 22px 60px rgba(0, 0, 0, 0.35);
  --shadow-card: 0 14px 40px rgba(15, 23, 42, 0.14);

  --max-width: 1240px;
}

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

html,
body {
  height: 100%;
}

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--page-bg);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

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

img {
  max-width: 100%;
  display: block;
}

/* Layout */

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.shell {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(to right, #050b14, #10233c);
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  gap: 1.6rem;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  height: 40px;
  width: auto;
}

.brand-text-main {
  font-size: 0.96rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-on-dark);
}

.brand-text-sub {
  font-size: 0.78rem;
  color: rgba(226, 232, 240, 0.8);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  font-size: 0.9rem;
}

.nav a {
  position: relative;
  padding: 0.1rem 0;
  color: rgba(226, 232, 240, 0.85);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 0;
  height: 2px;
  background: var(--blue-main);
  transition: width 0.16s ease-out;
}

.nav a:hover {
  color: #ffffff;
}

.nav a:hover::after {
  width: 100%;
}

.nav a.active {
  color: #ffffff;
  font-weight: 600;
}

.nav a.active::after {
  width: 100%;
}

.nav-cta {
  padding: 0.4rem 1.05rem;
  border-radius: 999px;
  border: 1px solid var(--blue-main);
  background: var(--blue-main);
  color: #ffffff !important;
  font-size: 0.84rem;
}

.nav-cta:hover {
  background: #0c5f99;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 0.22rem;
  cursor: pointer;
}

.burger span {
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: #e5e7eb;
}

/* Hero */

.hero {
  background: radial-gradient(circle at 0 0, #1d3557 0, #050b14 55%, #050b14 100%);
  padding: 3.2rem 0 3rem;
  color: var(--text-on-dark);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.55);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.2fr);
  gap: 2.6rem;
  align-items: center;
}

.hero-kicker {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #9ca3af;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.6rem;
}

.hero-kicker .dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #22c55e;
}

.hero-title {
  font-size: clamp(2.1rem, 3vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: 0.02em;
  margin-bottom: 0.7rem;
}

.hero-title .highlight {
  color: var(--blue-soft);
}

.hero-subtitle {
  font-size: 0.98rem;
  color: #cbd5f5;
  max-width: 38rem;
}

.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1.7rem;
  margin: 1.6rem 0 1.8rem;
}

.metric {
  min-width: 130px;
}

.metric-value {
  font-size: 1.25rem;
  font-weight: 600;
  color: #f9fafb;
}

.metric-label {
  font-size: 0.8rem;
  color: #9ca3af;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.35rem;
  border-radius: 999px;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  background: none;
  color: inherit;
}

.btn-primary {
  background-color: var(--accent-warm);
  color: #111827;
  font-weight: 600;
  box-shadow: 0 10px 24px rgba(245, 158, 11, 0.45);
}

.btn-primary:hover {
  filter: brightness(1.04);
}

.btn-ghost {
  border-color: rgba(148, 163, 184, 0.8);
  background: rgba(15, 23, 42, 0.9);
  color: #e5e7eb;
}

.btn-ghost:hover {
  border-color: var(--blue-soft);
}

/* Hero visual */

.hero-right {
  position: relative;
}

.hero-card {
  border-radius: 12px;
  background: #020617;
  border: 1px solid rgba(148, 163, 184, 0.7);
  box-shadow: var(--shadow-soft);
  padding: 1rem 1rem 0.9rem;
}

.hero-image {
  height: 230px;
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  margin-bottom: 0.85rem;
  background: #020617;
}

.hero-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("images/hero-steel-plant.jpg");
  background-size: cover;
  background-position: center;
}

.hero-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.hero-chip {
  font-size: 0.8rem;
  color: #e5e7eb;
}

.hero-chip strong {
  color: #fef9c3;
}

.hero-badge {
  font-size: 0.75rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.75);
  color: #e5e7eb;
}

/* Credibility strip */

.credibility-strip {
  padding: 1rem 0;
  background: #ffffff;
  border-bottom: 1px solid var(--border-subtle);
}

.credibility-content {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  font-size: 0.86rem;
  color: var(--text-soft);
}

.credibility-lead {
  font-weight: 600;
  color: var(--text-main);
}

.credibility-divider {
  height: 16px;
  width: 1px;
  background: #e5e7eb;
}

/* Sections */

.section {
  padding: 2.7rem 0;
  background: var(--section-bg);
  border-top: 1px solid rgba(15, 23, 42, 0.08);
}

.section:nth-of-type(even) {
  background: #ffffff;
}

.section-header {
  margin-bottom: 1.6rem;
}

.section-kicker {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.section-title {
  font-size: 1.35rem;
  margin-bottom: 0.2rem;
  color: var(--blue-deep);
}

.section-subtitle {
  font-size: 0.92rem;
  max-width: 40rem;
  color: var(--text-soft);
}

/* Home core band */

.home-core {
  border-top: 1px solid rgba(148, 163, 184, 0.25);
}

/* Grids + cards */

.grid {
  display: grid;
  gap: 1.25rem;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  background: var(--shell-bg);
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  padding: 0.9rem 0.95rem 0.9rem;
  box-shadow: var(--shadow-card);
  transition: transform 0.15s ease-out, box-shadow 0.15s ease-out, border-color 0.15s ease-out;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
  border-color: var(--blue-soft);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.4rem;
}

.card-icon {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: var(--blue-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--blue-deep);
}

.card-title {
  font-size: 0.96rem;
  font-weight: 600;
  color: var(--blue-deep);
}

.card-body {
  font-size: 0.86rem;
  color: var(--text-soft);
}

/* Thumbnails */

.card-thumb {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 0.7rem;
}

/* Product / industries specific tweaks */

.products-grid .card {
  padding-top: 0.8rem;
}

.products-grid .card-title {
  font-size: 0.94rem;
}

.industries-grid .card-thumb {
  height: 160px;
}

.industries-grid .card-body {
  font-size: 0.84rem;
}

/* Two-column sections */

.columns {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 2.1rem;
}

.lead {
  font-size: 0.95rem;
  color: var(--text-soft);
  margin-bottom: 0.8rem;
}

.list {
  list-style: none;
  margin: 0.4rem 0 0;
  padding: 0;
}

.list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.88rem;
  color: var(--text-soft);
  margin-bottom: 0.3rem;
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 7px;
  height: 2px;
  border-radius: 999px;
  background: var(--blue-main);
}

/* Contact */

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 2rem;
}

.contact-card {
  background: var(--shell-bg);
  border-radius: 10px;
  padding: 1.3rem 1.3rem 1.05rem;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-card);
}

.field-grid {
  display: grid;
  gap: 0.8rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.82rem;
}

.field label {
  color: var(--text-soft);
}

.field input,
.field textarea {
  background: #ffffff;
  border-radius: 6px;
  border: 1px solid #cbd5e1;
  padding: 0.5rem 0.65rem;
  font-size: 0.86rem;
  color: var(--text-main);
  outline: none;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--blue-main);
  box-shadow: 0 0 0 1px rgba(15, 111, 181, 0.18);
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-meta {
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-top: 0.6rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.35);
  background: #020617;
  color: #9ca3af;
  margin-top: auto;
}

.site-footer-inner {
  padding: 1rem 0 1.4rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  font-size: 0.8rem;
  gap: 0.7rem;
}

.footer-links {
  display: flex;
  gap: 1rem;
}

.footer-links a {
  color: #e5e7eb;
}

/* Responsive */

@media (max-width: 980px) {
  .hero-grid,
  .columns,
  .contact-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 2.5rem;
  }

  .hero-right {
    order: -1;
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .credibility-content {
    gap: 0.8rem;
  }
}

@media (max-width: 720px) {
  .site-header-inner {
    padding: 0.7rem 0;
  }

  .nav {
    position: absolute;
    right: 1.5rem;
    top: 3rem;
    flex-direction: column;
    align-items: flex-start;
    background: #020617;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid rgba(148, 163, 184, 0.6);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.6);
    display: none;
  }

  .nav a {
    color: #e5e7eb;
  }

  .nav.nav-open {
    display: flex;
  }

  .burger {
    display: flex;
  }

  .hero {
    padding-top: 2.1rem;
  }

  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }

  .credibility-content {
    align-items: flex-start;
  }
/* Pre-footer CTA band */
.prefooter {
  background: #020617;
  color: #e5e7eb;
  padding: 2rem 0 2.2rem;
  border-top: 1px solid rgba(148, 163, 184, 0.4);
}

.prefooter .shell {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.prefooter .section-header {
  margin-bottom: 0.4rem;
}

.prefooter .section-title {
  color: #e5e7eb;
}

.prefooter .section-subtitle {
  color: #9ca3af;
  max-width: 34rem;
}

.prefooter .section-kicker {
  color: #9ca3af;
}

.prefooter .btn-primary {
  align-self: flex-start;
}

}
.lang-select {
  margin-left: 1rem;
}

.lang-select select {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid #cbd5e1;
  font-weight: 600;
  cursor: pointer;
}