/* ===== Constrora — Steel & Iron Trading ===== */
:root {
  --steel-dark: #1f2d3a;
  --steel-mid: #34495e;
  --steel-light: #5b6e7f;
  --steel-pale: #eef1f4;
  --steel-line: #d6dde3;
  --amber: #e8830f;
  --amber-dark: #c8590a;
  --amber-light: #ffb066;
  --text: #2a333c;
  --text-soft: #5b6b78;
  --white: #ffffff;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(31, 45, 58, 0.12);
  --container: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

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

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 88px 0; }

.section-head {
  max-width: 680px;
  margin: 0 auto 48px;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 3px;
  font-weight: 700;
  color: var(--amber-dark);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.eyebrow--on-dark { color: var(--amber-light); }

h1, h2, h3, h4 {
  font-weight: 700;
  color: var(--steel-dark);
  letter-spacing: -0.01em;
}

h1 { font-size: 48px; line-height: 1.15; }
h2 { font-size: 34px; line-height: 1.25; margin-bottom: 14px; }
h3 { font-size: 20px; margin-bottom: 8px; }

p { color: var(--text-soft); }

.lead { font-size: 18px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-primary {
  background: var(--amber);
  color: var(--white);
}
.btn-primary:hover { background: var(--amber-dark); }
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.6);
  color: var(--white);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); }
.btn-dark {
  background: var(--steel-dark);
  color: var(--white);
}
.btn-dark:hover { background: var(--steel-mid); }

/* ---- Header / Nav ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--steel-line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--container);
  margin: 0 auto;
}
.nav .logo { width: 168px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-weight: 600;
  font-size: 15px;
  color: var(--steel-dark);
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--amber-dark); }
.nav-links .btn { padding: 10px 22px; }
.nav-toggle { display: none; }

/* ---- Hero ---- */
.hero {
  position: relative;
  color: var(--white);
  overflow: hidden;
  display: flex;
  align-items: center;
  min-height: 640px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(28,39,53,0.92) 0%, rgba(28,39,53,0.55) 55%, rgba(28,39,53,0.25) 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  padding: 120px 24px;
  margin: 0 auto;
  width: 100%;
}
.hero-content h1 { color: var(--white); margin-bottom: 18px; }
.hero-content .lead { color: rgba(255,255,255,0.86); margin-bottom: 32px; max-width: 540px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 48px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 56px;
  flex-wrap: wrap;
}
.stat strong { display: block; font-size: 30px; color: var(--white); }
.stat span { font-size: 13px; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(255,255,255,0.7); }

/* ---- Trust strip ---- */
.trust-strip {
  background: var(--steel-pale);
  border-bottom: 1px solid var(--steel-line);
  padding: 28px 0;
}
.trust-strip .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px 36px;
  text-align: center;
}
.trust-strip .label {
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-soft);
}
.trust-strip .names {
  font-weight: 600;
  color: var(--steel-dark);
  font-size: 15px;
  letter-spacing: 0.3px;
}
.trust-strip .names span { color: var(--steel-light); margin: 0 6px; }

/* ---- About ---- */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-visual {
  background: var(--steel-dark);
  border-radius: var(--radius);
  padding: 36px;
}
.about-visual svg { border-radius: 6px; }
.about ul.checklist {
  list-style: none;
  margin-top: 20px;
}
.about ul.checklist li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  color: var(--text);
  font-weight: 500;
}
.about ul.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 4px;
  background: var(--amber);
}
.about ul.checklist li::after {
  content: "✓";
  position: absolute;
  left: 3px;
  top: 3px;
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
}

/* ---- Products ---- */
.products { background: var(--steel-pale); }
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.product-card {
  background: var(--white);
  border: 1px solid var(--steel-line);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.product-card img { width: 64px; height: 64px; margin-bottom: 18px; }
.product-card h3 { margin-bottom: 6px; }
.product-card p { font-size: 15px; }
.product-card .tag {
  display: inline-block;
  margin-top: 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--amber-dark);
}

/* ---- Why us / process ---- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.why-card {
  text-align: center;
  padding: 12px;
}
.why-card .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--steel-dark);
  color: var(--white);
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 18px;
}
.why-card p { font-size: 15px; }

/* ---- CTA band ---- */
.cta-band {
  background: linear-gradient(120deg, var(--steel-dark), var(--steel-mid));
  color: var(--white);
  text-align: center;
}
.cta-band h2 { color: var(--white); }
.cta-band p { color: rgba(255,255,255,0.78); max-width: 560px; margin: 0 auto 28px; }

/* ---- Contact ---- */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.contact-info .item {
  display: flex;
  gap: 16px;
  margin-bottom: 22px;
}
.contact-info .icon-dot {
  flex: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--steel-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--amber-dark);
  font-weight: 700;
}
.contact-info h3 { margin-bottom: 2px; }
.contact-info p { font-size: 15px; margin: 0; }

.contact-form {
  background: var(--steel-pale);
  border: 1px solid var(--steel-line);
  border-radius: var(--radius);
  padding: 32px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-bottom: 6px;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--steel-line);
  border-radius: 6px;
  font-size: 15px;
  font-family: inherit;
  background: var(--white);
  color: var(--text);
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--amber);
}

/* ---- Footer ---- */
.site-footer {
  background: var(--steel-dark);
  color: rgba(255,255,255,0.7);
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-grid h4 { color: var(--white); margin-bottom: 16px; font-size: 15px; letter-spacing: 1px; text-transform: uppercase; }
.footer-grid ul { list-style: none; }
.footer-grid ul li { margin-bottom: 10px; font-size: 15px; }
.footer-grid ul a:hover { color: var(--amber); }
.footer-logo { width: 168px; margin-bottom: 16px; filter: brightness(0) invert(1); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
}

/* ---- Responsive ---- */
@media (max-width: 980px) {
  h1 { font-size: 38px; }
  h2 { font-size: 28px; }
  .about, .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  .nav-links { display: none; }
  section { padding: 64px 0; }
  .product-grid, .why-grid, .form-row, .footer-grid { grid-template-columns: 1fr; }
  .hero-content { padding: 90px 24px 56px; }
  h1 { font-size: 32px; }
  .hero-stats { gap: 28px; padding-bottom: 40px; }
}