/* ═══════════════════════════════════════════════════════════
   TEINCO MINING — style.css
   Paleta: Navy #00102E · Rojo #d65050 · Industrial
═══════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,300;0,400;0,600;0,700;0,800;0,900;1,400&family=Barlow+Condensed:wght@600;700;800;900&display=swap');

:root {
  --navy:      #00102E;
  --navy-mid:  #233452;
  --navy-light:#2d4068;
  --red:       #d65050;
  --red-dark:  #b73d3d;
  --red-glow:  rgba(214,80,80,.15);
  --gray:      #6d7685;
  --light:     #F4F5F7;
  --white:     #ffffff;
  --border:    rgba(255,255,255,.08);
  --border2:   rgba(255,255,255,.14);
  --radius:    8px;
  --shadow:    0 8px 32px rgba(0,0,0,.3);
  --transition:.25s ease;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Barlow', sans-serif;
  background: var(--white);
  color: var(--navy-mid);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul { list-style: none; }

/* ── Typography ── */
h1,h2,h3,h4,h5 {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800;
  line-height: 1.15;
  color: var(--navy);
}
.accent { color: var(--red); }

/* ── Utility ── */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-dark { background: var(--navy); color: var(--white); }
.section-dark h2, .section-dark h3 { color: var(--white); }
.section-light { background: var(--light); }
.section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .72rem; font-weight: 800; letter-spacing: .18em;
  text-transform: uppercase; color: var(--red);
  margin-bottom: 12px;
}
.section-tag::before {
  content: ''; display: block; width: 28px; height: 2px;
  background: var(--red); flex-shrink: 0;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1rem; color: var(--gray); max-width: 600px;
  margin-bottom: 48px; line-height: 1.75;
}
.section-header { text-align: center; }
.section-header .section-tag { justify-content: center; }
.section-header .section-desc { margin-left: auto; margin-right: auto; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'Barlow', sans-serif; font-weight: 700;
  font-size: .875rem; letter-spacing: .04em; text-transform: uppercase;
  padding: 14px 28px; border-radius: 0; border: 2px solid transparent;
  cursor: pointer; transition: all var(--transition); white-space: nowrap;
}
.btn-primary {
  background: var(--red); color: var(--white); border-color: var(--red);
}
.btn-primary:hover { background: var(--red-dark); border-color: var(--red-dark); transform: translateY(-2px); }
.btn-outline {
  background: transparent; color: var(--white); border-color: var(--white);
}
.btn-outline:hover { background: var(--white); color: var(--navy); }
.btn-navy {
  background: var(--navy); color: var(--white); border-color: var(--navy);
}
.btn-navy:hover { background: var(--navy-mid); }
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }

/* ══════════════════════════════════════════════════════════
   NAVBAR
══════════════════════════════════════════════════════════ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: linear-gradient(135deg, rgba(0,0,0,.96) 0%, rgba(0,10,30,.95) 60%, rgba(20,5,5,.95) 100%);
  backdrop-filter: blur(16px);
  border-bottom: 2px solid rgba(180,30,30,.5);
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: linear-gradient(135deg, rgba(0,0,0,.99) 0%, rgba(0,8,24,.99) 60%, rgba(20,5,5,.99) 100%);
  box-shadow: 0 4px 32px rgba(0,0,0,.6), 0 2px 0 rgba(180,30,30,.3);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 76px; gap: 32px;
}
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo-icon {
  width: 58px; height: 58px; background: transparent;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.nav-logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.nav-logo-main {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.25rem; font-weight: 900; color: var(--white);
  letter-spacing: .04em;
}
.nav-logo-main span { color: var(--red); }
.nav-logo-sub { font-size: .6rem; color: rgba(255,255,255,.5); letter-spacing: .12em; text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
  font-size: .82rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  color: rgba(255,255,255,.75); padding: 8px 14px; transition: color var(--transition);
  position: relative;
}
.nav-link::after {
  content: ''; position: absolute; bottom: 4px; left: 14px; right: 14px;
  height: 2px; background: var(--red); transform: scaleX(0);
  transition: transform var(--transition);
}
.nav-link:hover { color: var(--white); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-cta {
  background: var(--red); color: var(--white) !important; padding: 9px 20px;
  margin-left: 8px;
}
.nav-cta:hover { background: var(--red-dark); }
.nav-cta::after { display: none; }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--white); transition: all .3s; }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ══════════════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════════════ */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; overflow: hidden;
}
.hero-slides { position: relative; width: 100%; min-height: 100vh; }
.hero-slide {
  position: absolute; inset: 0;
  display: flex; align-items: center;
  opacity: 0; transition: opacity .8s ease;
}
.hero-slide.active { opacity: 1; }
.slide-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
}
.slide-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(105deg, rgba(0,16,46,.85) 40%, rgba(0,16,46,.45));
}
.slide-content {
  position: relative; z-index: 2; max-width: 700px;
  padding: 120px 0 80px;
}
.slide-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--red); color: var(--white);
  font-size: .72rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase;
  padding: 6px 14px; margin-bottom: 24px;
}
.slide-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 900; color: var(--white);
  line-height: 1.08; margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,.3);
}
.slide-title span { color: var(--red); }
.slide-subtitle {
  font-size: 1.05rem; color: rgba(255,255,255,.82);
  max-width: 560px; margin-bottom: 36px; line-height: 1.72;
}
.slide-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero dots */
.hero-dots {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 10;
}
.dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,.35); cursor: pointer; border: none;
  transition: all .3s;
}
.dot.active { background: var(--red); transform: scale(1.3); }

/* Hero prev/next */
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 10; background: rgba(0,16,46,.5); border: 1px solid var(--border2);
  color: var(--white); width: 48px; height: 48px; display: flex;
  align-items: center; justify-content: center; cursor: pointer;
  transition: background var(--transition); border-radius: 0;
}
.hero-arrow:hover { background: var(--red); border-color: var(--red); }
.hero-arrow.prev { left: 24px; }
.hero-arrow.next { right: 24px; }

/* ── Stats bar ── */
.stats-bar {
  background: var(--navy-mid); color: var(--white);
  padding: 0;
}
.stats-inner {
  display: grid; grid-template-columns: repeat(4,1fr);
}
.stat-item {
  display: flex; flex-direction: column; align-items: center;
  padding: 28px 20px; text-align: center;
  border-right: 1px solid rgba(255,255,255,.1);
}
.stat-item:last-child { border-right: none; }
.stat-number {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 2.4rem; font-weight: 900; color: var(--red);
  line-height: 1;
}
.stat-label { font-size: .78rem; font-weight: 600; color: rgba(255,255,255,.65); margin-top: 4px; letter-spacing: .06em; text-transform: uppercase; }

/* ══════════════════════════════════════════════════════════
   ABOUT
══════════════════════════════════════════════════════════ */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 72px;
  align-items: center;
}
.about-img-wrap { position: relative; }
.about-img {
  width: 100%; aspect-ratio: 4/3; object-fit: cover;
  box-shadow: var(--shadow);
}
.about-badge {
  position: absolute; bottom: -20px; right: -20px;
  background: var(--red); color: var(--white);
  padding: 18px 24px; text-align: center;
  box-shadow: 0 4px 20px rgba(214,80,80,.4);
}
.badge-num {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 2.2rem; font-weight: 900; line-height: 1;
}
.badge-txt { font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; margin-top: 2px; }
.about-list { display: flex; flex-direction: column; gap: 14px; margin: 24px 0 36px; }
.about-item { display: flex; align-items: flex-start; gap: 12px; }
.about-item-icon {
  width: 22px; height: 22px; flex-shrink: 0; margin-top: 2px;
  background: var(--red); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.about-item-icon svg { width: 12px; height: 12px; color: var(--white); }
.about-item-text { font-size: .94rem; color: var(--gray); line-height: 1.6; }
.about-item-text strong { color: var(--navy); }

/* ══════════════════════════════════════════════════════════
   SERVICES
══════════════════════════════════════════════════════════ */
.services-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 24px;
}
.service-card {
  background: var(--white); border: 1px solid #e8eaf0;
  transition: all var(--transition); overflow: hidden; position: relative;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.service-card:hover { transform: translateY(-6px); box-shadow: 0 16px 48px rgba(0,0,0,.12); border-color: var(--red); }
.service-img-wrap { position: relative; overflow: hidden; aspect-ratio: 16/9; }
.service-img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.service-card:hover .service-img { transform: scale(1.06); }
.service-cat {
  position: absolute; top: 14px; left: 14px;
  background: var(--red); color: var(--white);
  font-size: .62rem; font-weight: 800; letter-spacing: .14em;
  text-transform: uppercase; padding: 4px 10px;
}
.service-body { padding: 24px; }
.service-icon {
  width: 44px; height: 44px; background: var(--red-glow); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}
.service-icon svg { width: 22px; height: 22px; color: var(--red); }
.service-title { font-size: 1.15rem; font-weight: 800; margin-bottom: 10px; color: var(--navy); }
.service-desc { font-size: .875rem; color: var(--gray); line-height: 1.7; margin-bottom: 16px; }
.service-link {
  font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
  color: var(--red); display: flex; align-items: center; gap: 6px;
  transition: gap var(--transition);
}
.service-card:hover .service-link { gap: 10px; }

/* ══════════════════════════════════════════════════════════
   PROJECTS
══════════════════════════════════════════════════════════ */
.projects-filter {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 36px; justify-content: center;
}
.filter-btn {
  font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: 8px 18px; border: 2px solid #dde0ea;
  background: transparent; color: var(--gray); cursor: pointer;
  transition: all var(--transition); border-radius: 0;
}
.filter-btn.active, .filter-btn:hover {
  background: var(--red); border-color: var(--red); color: var(--white);
}
.projects-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 20px;
}
.project-card {
  position: relative; overflow: hidden; aspect-ratio: 4/3;
  cursor: pointer;
}
.project-img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s ease;
}
.project-card:hover .project-img { transform: scale(1.08); }
.project-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,16,46,.92) 0%, rgba(0,16,46,.2) 60%, transparent 100%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 24px; opacity: 0; transform: translateY(8px);
  transition: all .3s ease;
}
.project-card:hover .project-overlay { opacity: 1; transform: translateY(0); }
.project-cat {
  font-size: .65rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase;
  color: var(--red); margin-bottom: 6px;
}
.project-title { font-size: 1.05rem; color: var(--white); font-weight: 800; line-height: 1.25; }
.project-loc { font-size: .78rem; color: rgba(255,255,255,.65); margin-top: 4px; display: flex; align-items: center; gap: 4px; }
.project-loc svg { width: 12px; height: 12px; }

/* ══════════════════════════════════════════════════════════
   CERTIFICATIONS
══════════════════════════════════════════════════════════ */
.certs-grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 24px;
}
.cert-card {
  background: rgba(255,255,255,.04); border: 1px solid var(--border);
  padding: 32px 24px; text-align: center;
  transition: all var(--transition);
}
.cert-card:hover {
  background: rgba(214,80,80,.08); border-color: rgba(214,80,80,.3);
  transform: translateY(-4px);
}
.cert-badge {
  width: 72px; height: 72px; margin: 0 auto 16px;
  background: var(--red); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .72rem; font-weight: 900; color: var(--white);
  text-align: center; line-height: 1.2;
}
.cert-name { font-size: 1.1rem; font-weight: 800; color: var(--white); margin-bottom: 6px; }
.cert-entity { font-size: .78rem; color: rgba(255,255,255,.5); margin-bottom: 12px; }
.cert-desc { font-size: .82rem; color: rgba(255,255,255,.65); line-height: 1.65; }

/* ══════════════════════════════════════════════════════════
   TEAM
══════════════════════════════════════════════════════════ */
.team-grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 24px;
}
.team-card {
  text-align: center; overflow: hidden;
  background: var(--white); border: 1px solid #e8eaf0;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  transition: all var(--transition);
}
.team-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,0,0,.12); }
.team-photo-wrap { position: relative; overflow: hidden; aspect-ratio: 3/4; }
.team-photo {
  width: 100%; height: 100%; object-fit: cover; object-position: top;
  transition: transform .5s;
}
.team-card:hover .team-photo { transform: scale(1.05); }
.team-photo-placeholder {
  width: 100%; height: 100%; background: var(--navy-mid);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 3rem; font-weight: 900; color: var(--red);
}
.team-overlay {
  position: absolute; inset: 0; background: rgba(0,16,46,.7);
  display: flex; align-items: flex-end; justify-content: center;
  padding-bottom: 16px; opacity: 0; transition: opacity .3s;
}
.team-card:hover .team-overlay { opacity: 1; }
.team-linkedin {
  display: flex; align-items: center; gap: 6px;
  background: var(--red); color: var(--white);
  font-size: .72rem; font-weight: 700; padding: 7px 14px;
}
.team-body { padding: 18px 16px; }
.team-name { font-size: 1.05rem; font-weight: 800; color: var(--navy); margin-bottom: 4px; }
.team-pos { font-size: .78rem; color: var(--red); font-weight: 700; letter-spacing: .05em; text-transform: uppercase; }

/* ══════════════════════════════════════════════════════════
   TESTIMONIALS
══════════════════════════════════════════════════════════ */
.testi-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.testi-card {
  background: rgba(255,255,255,.04); border: 1px solid var(--border);
  padding: 32px; transition: all var(--transition);
}
.testi-card:hover { background: rgba(255,255,255,.07); transform: translateY(-4px); }
.testi-stars { display: flex; gap: 4px; margin-bottom: 16px; }
.testi-stars span { color: var(--red); font-size: 1.1rem; }
.testi-text {
  font-size: .94rem; color: rgba(255,255,255,.8); line-height: 1.75;
  margin-bottom: 20px; font-style: italic;
}
.testi-text::before { content: '"'; font-size: 2rem; color: var(--red); line-height: 0; vertical-align: -.4em; margin-right: 4px; }
.testi-author { display: flex; flex-direction: column; gap: 2px; }
.testi-name { font-size: .94rem; font-weight: 800; color: var(--white); }
.testi-role { font-size: .75rem; color: rgba(255,255,255,.5); }

/* ══════════════════════════════════════════════════════════
   CLIENTS
══════════════════════════════════════════════════════════ */
.clients-strip {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 0; border-top: 1px solid #e8eaf0; border-left: 1px solid #e8eaf0;
}
.client-item {
  flex: 1 1 16.666%; border-right: 1px solid #e8eaf0; border-bottom: 1px solid #e8eaf0;
  padding: 28px 20px; display: flex; align-items: center; justify-content: center;
  min-height: 80px; transition: background var(--transition);
}
.client-item:hover { background: var(--light); }
.client-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.2rem; font-weight: 800; color: var(--navy-mid);
  letter-spacing: .04em;
}

/* ══════════════════════════════════════════════════════════
   CONTACT
══════════════════════════════════════════════════════════ */
.contact-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 64px; }
.contact-info { display: flex; flex-direction: column; gap: 28px; }
.contact-card {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px; background: var(--light); border-left: 3px solid var(--red);
}
.contact-icon {
  width: 40px; height: 40px; background: var(--red); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-icon svg { width: 18px; height: 18px; color: var(--white); }
.contact-label { font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--gray); }
.contact-val { font-size: .94rem; font-weight: 600; color: var(--navy); margin-top: 2px; }

.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--navy-mid); }
.field input, .field textarea, .field select {
  background: var(--light); border: 1.5px solid #dde0ea;
  color: var(--navy); font-family: 'Barlow', sans-serif; font-size: .93rem;
  padding: 12px 16px; outline: none; border-radius: 0;
  transition: border-color var(--transition);
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--red); background: var(--white); }
.field textarea { min-height: 130px; resize: vertical; }

/* ══════════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════════ */
.footer { background: var(--navy); color: var(--white); }
.footer-top { padding: 80px 0 48px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; }
.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-about { font-size: .875rem; color: rgba(255,255,255,.55); line-height: 1.75; margin-bottom: 20px; }
.footer-socials { display: flex; gap: 10px; }
.social-btn {
  width: 36px; height: 36px; background: rgba(255,255,255,.08);
  border: 1px solid var(--border); display: flex; align-items: center;
  justify-content: center; color: rgba(255,255,255,.6);
  transition: all var(--transition);
}
.social-btn:hover { background: var(--red); border-color: var(--red); color: var(--white); }
.social-btn svg { width: 16px; height: 16px; }

.footer-col-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .78rem; font-weight: 900; letter-spacing: .15em;
  text-transform: uppercase; color: var(--red);
  margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: .875rem; color: rgba(255,255,255,.55);
  transition: color var(--transition); display: flex; align-items: center; gap: 6px;
}
.footer-links a:hover { color: var(--red); }
.footer-links a::before { content: '—'; font-size: .7rem; color: var(--red); }

.footer-contact-list { display: flex; flex-direction: column; gap: 12px; }
.footer-contact-item { display: flex; gap: 10px; align-items: flex-start; }
.footer-contact-item svg { width: 15px; height: 15px; color: var(--red); flex-shrink: 0; margin-top: 3px; }
.footer-contact-item span { font-size: .85rem; color: rgba(255,255,255,.55); line-height: 1.5; }

.footer-bottom {
  border-top: 1px solid var(--border); padding: 20px 0;
  display: flex; align-items: center; justify-content: space-between;
  font-size: .8rem; color: rgba(255,255,255,.35);
}
.footer-bottom a { color: rgba(255,255,255,.35); transition: color var(--transition); }
.footer-bottom a:hover { color: var(--red); }
.footer-bottom-links { display: flex; gap: 20px; }

/* ── Back to top ── */
.back-top {
  position: fixed; bottom: 28px; right: 28px; z-index: 99;
  width: 44px; height: 44px; background: var(--red); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(214,80,80,.4);
  opacity: 0; transform: translateY(20px);
  transition: all var(--transition); pointer-events: none; cursor: pointer; border: none;
}
.back-top.visible { opacity: 1; transform: translateY(0); pointer-events: all; }
.back-top:hover { background: var(--red-dark); }
.back-top svg { width: 20px; height: 20px; }

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2,1fr); }
  .projects-grid { grid-template-columns: repeat(2,1fr); }
  .certs-grid { grid-template-columns: repeat(2,1fr); }
  .team-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .nav-links { display: none; flex-direction: column; position: fixed; top: 76px; left: 0; right: 0; bottom: 0; background: var(--navy); padding: 32px; gap: 8px; z-index: 999; }
  .nav-links.open { display: flex; }
  .nav-link { padding: 14px 0; font-size: 1rem; border-bottom: 1px solid var(--border); }
  .nav-cta { width: fit-content; margin-top: 12px; }
  .hamburger { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: repeat(2,1fr); }
  .team-grid { grid-template-columns: repeat(2,1fr); }
  .testi-grid { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: repeat(2,1fr); }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .client-item { flex: 1 1 33.333%; }
  .hero-arrow { display: none; }
}
@media (max-width: 480px) {
  .certs-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: 1fr 1fr; }
}