/* ===== RM del Sur — stylesheet ===== */

:root {
  --teal: #16C3BE;
  --teal-dark: #0FA6A2;
  --dark: #1A1A1A;
  --dark-2: #232323;
  --grey: #5B6367;
  --grey-light: #F4F6F6;
  --white: #FFFFFF;
  --border: #E3E7E7;
  --radius: 10px;
  --container: 1160px;
  --font-display: 'Barlow Condensed', Arial, sans-serif;
  --font-body: 'Barlow', Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--dark);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.08;
  margin: 0 0 16px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
h2 { font-size: clamp(28px, 4vw, 42px); }
h3 { font-size: 20px; }

.section-eyebrow, .eyebrow {
  font-family: var(--font-display);
  color: var(--teal-dark);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 14px;
  margin: 0 0 10px;
}

.section { padding: 88px 0; }
.section-dark { background: var(--dark); color: var(--white); }
.section-dark .section-eyebrow { color: var(--teal); }
.section-title-light { color: var(--white); }

.lead-text { font-size: 18px; color: var(--grey); max-width: 46ch; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: var(--radius);
  font-weight: 700;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 15px;
  border: 2px solid transparent;
  transition: all .2s ease;
  cursor: pointer;
}
.btn-primary { background: var(--teal); color: var(--dark); }
.btn-primary:hover { background: var(--teal-dark); }
.btn-outline { border-color: var(--white); color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--dark); }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(26,26,26,0.92);
  backdrop-filter: blur(6px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand-logo { height: 34px; width: auto; filter: brightness(0) invert(1); }
.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a {
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 14px;
  letter-spacing: 1px;
}
.main-nav a:hover { color: var(--teal); }
.nav-cta {
  background: var(--teal);
  color: var(--dark) !important;
  padding: 10px 20px;
  border-radius: 6px;
}
.nav-cta:hover { background: var(--teal-dark); color: var(--dark) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px; background: var(--white); display: block;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 190px 0 100px;
  background: var(--dark);
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 85% 20%, rgba(22,195,190,0.25), transparent 45%),
    linear-gradient(115deg, var(--dark) 45%, #10302f 100%);
}
.hero-inner { position: relative; z-index: 2; max-width: 720px; }
.hero h1 {
  color: var(--white);
  font-size: clamp(38px, 6vw, 62px);
}
.hero h1 span { color: var(--teal); }
.hero-lead {
  color: #C9CFCF;
  font-size: 19px;
  max-width: 50ch;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== Industries strip ===== */
.industries {
  background: var(--grey-light);
  border-bottom: 1px solid var(--border);
}
.industries-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 36px 24px;
}
.industry-card {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  font-size: 15px;
}
.industry-card img { width: 30px; height: 30px; }

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}
.values-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.value-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
}
.value-num {
  display: block;
  font-family: var(--font-display);
  color: var(--teal-dark);
  font-weight: 800;
  font-size: 26px;
  margin-bottom: 6px;
}
.value-item h3 { margin: 0; font-size: 17px; }

/* ===== Services ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.service-card {
  background: var(--dark-2);
  border: 1px solid #333;
  border-radius: var(--radius);
  padding: 32px 26px;
  transition: transform .2s ease, border-color .2s ease;
}
.service-card:hover { transform: translateY(-4px); border-color: var(--teal); }
.service-card img { width: 40px; height: 40px; margin-bottom: 18px; }
.service-card h3 { color: var(--white); margin-bottom: 10px; }
.service-card p { color: #B7BDBD; margin: 0; font-size: 15px; }

/* ===== Registro ===== */
.registro { background: var(--grey-light); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 32px 0; }
.registro-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.registro-badge {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--dark);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: 22px;
  flex: none;
}
.registro-text { flex: 1 1 320px; font-weight: 600; }
.registro-number { text-align: right; flex: none; }
.registro-number .num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  color: var(--dark);
}
.registro-number .sub { font-size: 13px; color: var(--grey); }

/* ===== Clients ===== */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.clients-grid img {
  width: 100%;
  height: 100px;
  object-fit: contain;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  filter: grayscale(15%);
  transition: filter .2s ease, box-shadow .2s ease;
}
.clients-grid img:hover { filter: none; box-shadow: 0 8px 20px rgba(0,0,0,0.08); }

/* ===== CTA / Contact ===== */
.cta-section { background: var(--dark); color: var(--white); padding: 88px 0; }
.cta-inner h2 { color: var(--white); }
.cta-inner > p { color: #C9CFCF; font-size: 18px; margin-bottom: 40px; }
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.contact-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px;
  border: 1px solid #333;
  border-radius: var(--radius);
  transition: border-color .2s ease, background .2s ease;
}
a.contact-item:hover { border-color: var(--teal); background: rgba(22,195,190,0.06); }
.contact-label {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 13px;
  color: var(--teal);
  font-weight: 700;
}
.contact-value { font-size: 16px; font-weight: 600; }

/* ===== Footer ===== */
.site-footer { background: #101010; padding: 32px 0; }
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo { height: 26px; width: auto; filter: brightness(0) invert(1); }
.footer-inner p { color: #7A8080; font-size: 13px; margin: 0; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .clients-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  .main-nav {
    position: fixed;
    top: 76px; left: 0; right: 0;
    background: var(--dark);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }
  .main-nav.open { max-height: 320px; padding: 16px 24px 24px; }
  .main-nav a { padding: 12px 0; width: 100%; border-bottom: 1px solid #2c2c2c; }
  .nav-cta { margin-top: 12px; text-align: center; }
  .nav-toggle { display: flex; }
  .hero { padding: 150px 0 70px; }
  .services-grid, .clients-grid, .contact-grid { grid-template-columns: 1fr; }
  .registro-inner { text-align: left; }
  .registro-number { text-align: left; }
}