/* ==========================================================================
   GENTNC – Sri Green Energy Network Trading & Contracting Pvt Ltd
   Corporate website stylesheet
   ========================================================================== */

:root {
  --green-900: #0b3d2e;
  --green-700: #14684a;
  --green-500: #1f9d61;
  --green-400: #34c97f;
  --accent: #00c2ff;
  --accent-dark: #0095c8;
  --navy: #0a1f33;
  --ink: #0f172a;
  --muted: #5b6b7b;
  --line: #e3e8ee;
  --bg: #ffffff;
  --bg-alt: #f5f8fb;
  --bg-dark: #0a1f33;
  --shadow-sm: 0 2px 8px rgba(10, 31, 51, 0.06);
  --shadow-md: 0 10px 30px rgba(10, 31, 51, 0.08);
  --shadow-lg: 0 20px 60px rgba(10, 31, 51, 0.15);
  --radius: 14px;
  --radius-sm: 8px;
  --container: 1200px;
  --transition: 0.25s cubic-bezier(.4,0,.2,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--green-700); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--green-500); }

h1, h2, h3, h4 {
  font-family: "Poppins", "Inter", system-ui, sans-serif;
  color: var(--navy);
  line-height: 1.2;
  margin: 0 0 0.6em;
  font-weight: 700;
}
h1 { font-size: clamp(2rem, 4.2vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.25rem; }
p  { margin: 0 0 1em; color: var(--muted); }

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px;
  font-weight: 600; font-size: 0.95rem;
  cursor: pointer; border: 0;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  color: #fff;
  box-shadow: 0 8px 24px rgba(31, 157, 97, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); color: #fff; box-shadow: 0 12px 30px rgba(31, 157, 97, 0.4); }
.btn-outline {
  background: transparent; color: var(--navy);
  border: 2px solid var(--navy);
}
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-light {
  background: #fff; color: var(--green-700);
}
.btn-light:hover { background: var(--bg-alt); color: var(--green-900); }

/* ---------- Header / Navigation ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 0;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: "Poppins", sans-serif; font-weight: 800;
  color: var(--navy); font-size: 1.25rem;
  letter-spacing: 0.5px;
}
.logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--green-500), var(--accent));
  display: grid; place-items: center; color: #fff; font-weight: 800;
  box-shadow: 0 6px 16px rgba(31, 157, 97, 0.35);
}
.logo small { display: block; font-size: 0.65rem; font-weight: 500; color: var(--muted); letter-spacing: 1.2px; }
.nav-links { display: flex; gap: 4px; align-items: center; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  color: var(--ink); font-weight: 500; padding: 10px 14px;
  border-radius: 8px; font-size: 0.95rem;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--green-700); background: var(--bg-alt);
}
.nav-cta { margin-left: 12px; }
.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 42px; height: 42px; border-radius: 8px;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--navy);
  margin: 5px auto; transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(ellipse at top right, rgba(0,194,255,0.18), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(31,157,97,0.18), transparent 60%),
    linear-gradient(135deg, #0a1f33 0%, #0b3d2e 100%);
  color: #fff;
  padding: 90px 0 100px;
}
.hero h1 { color: #fff; }
.hero p { color: rgba(255,255,255,0.8); font-size: 1.1rem; max-width: 580px; }
.hero-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center;
}
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  background: rgba(0, 194, 255, 0.15);
  color: var(--accent); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase;
  margin-bottom: 20px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-top: 50px; padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.hero-stats .stat strong {
  display: block; font-size: 2rem; font-weight: 800; color: #fff;
  font-family: "Poppins", sans-serif;
}
.hero-stats .stat span { color: rgba(255,255,255,0.7); font-size: 0.85rem; }

.hero-visual {
  position: relative; aspect-ratio: 1/1;
  background: linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.1); border-radius: 24px;
  display: grid; place-items: center;
  backdrop-filter: blur(10px);
}
.hero-visual svg { width: 75%; height: 75%; filter: drop-shadow(0 20px 40px rgba(0,194,255,0.3)); }
.hero-visual::before {
  content: ""; position: absolute; inset: -2px; border-radius: 24px;
  background: linear-gradient(135deg, rgba(0,194,255,0.4), transparent 50%, rgba(31,157,97,0.4));
  z-index: -1; filter: blur(20px); opacity: 0.6;
}

/* ---------- Sections ---------- */
section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: rgba(255,255,255,0.75); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 60px; }
.section-head .eyebrow {
  display: inline-block; color: var(--green-700); font-weight: 600;
  letter-spacing: 2px; text-transform: uppercase; font-size: 0.78rem;
  margin-bottom: 12px;
}
.section-head p { font-size: 1.05rem; }

/* ---------- Service / Feature Cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 28px; transition: all var(--transition);
  position: relative; overflow: hidden;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.card-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: linear-gradient(135deg, var(--green-500), var(--accent));
  display: grid; place-items: center; color: #fff;
  margin-bottom: 20px;
  box-shadow: 0 8px 20px rgba(31,157,97,0.25);
}
.card-icon svg { width: 28px; height: 28px; }
.card h3 { margin-bottom: 10px; }
.card p { font-size: 0.95rem; margin-bottom: 0; }
.card .more { display: inline-block; margin-top: 16px; color: var(--green-700); font-weight: 600; font-size: 0.9rem; }

/* ---------- Why Choose Us ---------- */
.why-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 18px; }
.why-list li {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 18px; background: #fff; border-radius: var(--radius-sm);
  border-left: 3px solid var(--green-500);
}
.why-list .check {
  flex: 0 0 32px; height: 32px; border-radius: 50%;
  background: var(--green-500); color: #fff;
  display: grid; place-items: center; font-weight: 700;
}
.why-list strong { display: block; color: var(--navy); margin-bottom: 4px; }
.why-list span { color: var(--muted); font-size: 0.92rem; }

/* ---------- Certifications ---------- */
.cert-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px;
}
.cert {
  background: #fff; padding: 32px 24px; text-align: center;
  border-radius: var(--radius); border: 1px solid var(--line);
  transition: all var(--transition);
}
.cert:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.cert-badge {
  width: 80px; height: 80px; margin: 0 auto 16px;
  border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  color: #fff; font-weight: 800; font-size: 1rem;
  box-shadow: 0 8px 20px rgba(31,157,97,0.3);
}
.cert h4 { margin: 0 0 6px; color: var(--navy); font-size: 1.05rem; }
.cert p { margin: 0; font-size: 0.85rem; }

/* ---------- About / Split ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split-img {
  aspect-ratio: 4/3; border-radius: var(--radius);
  background: linear-gradient(135deg, var(--green-700), var(--navy));
  position: relative; overflow: hidden;
  display: grid; place-items: center;
  box-shadow: var(--shadow-lg);
}
.split-img svg { width: 60%; opacity: 0.9; }
.split-img::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(0,194,255,0.3), transparent 50%);
}

.vision-mission { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 32px; }
.vm-card {
  padding: 24px; border-radius: var(--radius);
  background: var(--bg-alt); border-left: 4px solid var(--green-500);
}
.vm-card h4 { margin: 0 0 8px; color: var(--green-900); }
.vm-card p { margin: 0; font-size: 0.95rem; }

/* ---------- Industries ---------- */
.industries-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.industry {
  background: #fff; border-radius: var(--radius); padding: 28px 20px;
  text-align: center; border: 1px solid var(--line);
  transition: all var(--transition);
}
.industry:hover {
  background: linear-gradient(135deg, var(--green-700), var(--navy));
  color: #fff; transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.industry:hover h4, .industry:hover p { color: #fff; }
.industry:hover .industry-icon { background: rgba(255,255,255,0.15); color: #fff; }
.industry-icon {
  width: 60px; height: 60px; margin: 0 auto 16px;
  border-radius: 14px; background: var(--bg-alt);
  display: grid; place-items: center; color: var(--green-700);
  transition: all var(--transition);
}
.industry h4 { margin: 0 0 6px; font-size: 1rem; }
.industry p { margin: 0; font-size: 0.85rem; }

/* ---------- Portfolio ---------- */
.portfolio-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.portfolio-item {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); transition: all var(--transition);
}
.portfolio-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.portfolio-img {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--green-700), var(--navy));
  display: grid; place-items: center; color: #fff;
  position: relative; overflow: hidden;
}
.portfolio-img svg { width: 50%; opacity: 0.85; }
.portfolio-img::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(0,194,255,0.25), transparent 60%);
}
.portfolio-body { padding: 24px; }
.portfolio-body .tag {
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  background: var(--bg-alt); color: var(--green-700);
  font-size: 0.75rem; font-weight: 600; margin-bottom: 10px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.portfolio-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
.portfolio-body p { font-size: 0.9rem; margin: 0; }

/* ---------- CTA Banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--green-700), var(--navy));
  color: #fff; padding: 70px 0; position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 50%, rgba(0,194,255,0.25), transparent 50%);
}
.cta-banner .container {
  display: flex; justify-content: space-between; align-items: center; gap: 30px;
  position: relative; flex-wrap: wrap;
}
.cta-banner h2 { color: #fff; margin: 0 0 8px; }
.cta-banner p { color: rgba(255,255,255,0.85); margin: 0; }

/* ---------- Contact ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 50px; }
.contact-info { display: grid; gap: 24px; }
.info-item {
  display: flex; gap: 16px; padding: 22px;
  background: #fff; border-radius: var(--radius);
  border: 1px solid var(--line);
}
.info-item .icon {
  flex: 0 0 48px; height: 48px; border-radius: 12px;
  background: linear-gradient(135deg, var(--green-500), var(--accent));
  display: grid; place-items: center; color: #fff;
}
.info-item h4 { margin: 0 0 4px; font-size: 1rem; color: var(--navy); }
.info-item p { margin: 0; font-size: 0.92rem; }
.info-item a { color: var(--green-700); }

.contact-form {
  background: #fff; padding: 36px; border-radius: var(--radius);
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; margin-bottom: 6px; font-weight: 600;
  font-size: 0.88rem; color: var(--navy);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  border: 1.5px solid var(--line); font-family: inherit; font-size: 0.95rem;
  background: #fff; color: var(--ink);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none; border-color: var(--green-500);
  box-shadow: 0 0 0 4px rgba(31,157,97,0.12);
}
.form-group textarea { min-height: 130px; resize: vertical; }
.form-status {
  margin-top: 14px; padding: 12px 16px; border-radius: 10px;
  background: rgba(31,157,97,0.1); color: var(--green-700);
  font-size: 0.92rem; display: none;
}
.form-status.visible { display: block; }

/* ---------- Page Hero (interior) ---------- */
.page-hero {
  background:
    radial-gradient(ellipse at right, rgba(0,194,255,0.12), transparent 60%),
    linear-gradient(135deg, #0a1f33 0%, #0b3d2e 100%);
  color: #fff; padding: 80px 0 70px;
  text-align: center;
}
.page-hero h1 { color: #fff; margin-bottom: 12px; }
.page-hero p { color: rgba(255,255,255,0.8); max-width: 680px; margin: 0 auto; font-size: 1.05rem; }
.crumbs {
  display: inline-flex; gap: 8px; align-items: center;
  font-size: 0.85rem; color: rgba(255,255,255,0.7); margin-bottom: 14px;
}
.crumbs a { color: var(--accent); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy); color: rgba(255,255,255,0.75);
  padding: 70px 0 30px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 50px;
  margin-bottom: 50px;
}
.site-footer h5 {
  color: #fff; font-family: "Poppins", sans-serif;
  margin: 0 0 18px; font-size: 1rem; letter-spacing: 0.5px;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 10px; }
.site-footer a { color: rgba(255,255,255,0.75); font-size: 0.9rem; }
.site-footer a:hover { color: var(--accent); }
.footer-brand p { font-size: 0.92rem; }
.socials { display: flex; gap: 10px; margin-top: 18px; }
.socials a {
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,0.08); display: grid; place-items: center;
  transition: background var(--transition);
}
.socials a:hover { background: var(--green-500); }
.socials svg { width: 16px; height: 16px; fill: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 26px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  font-size: 0.85rem; color: rgba(255,255,255,0.55);
}

/* ---------- Catalog downloads ---------- */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.catalog-card {
  position: relative;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.catalog-card::before {
  content: "";
  position: absolute;
  top: -60px; right: -60px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,194,255,0.18), transparent 70%);
  pointer-events: none;
}
.catalog-card::after {
  content: "";
  position: absolute;
  bottom: -80px; left: -40px;
  width: 240px; height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31,157,97,0.14), transparent 70%);
  pointer-events: none;
}
.catalog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.catalog-cover {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: 10px;
  background: linear-gradient(140deg, var(--green-700) 0%, var(--navy) 100%);
  display: grid; place-items: center;
  color: #fff;
  box-shadow: 0 16px 30px rgba(10, 31, 51, 0.25);
  overflow: hidden;
  transform: rotate(-3deg);
  transition: transform var(--transition);
}
.catalog-card:hover .catalog-cover { transform: rotate(0deg) scale(1.03); }
.catalog-cover::before {
  content: "";
  position: absolute;
  left: 10px; top: 0; bottom: 0;
  width: 4px;
  background: rgba(255,255,255,0.18);
  box-shadow: 6px 0 0 rgba(255,255,255,0.08);
}
.catalog-cover svg {
  width: 60%;
  opacity: 0.85;
  filter: drop-shadow(0 8px 16px rgba(0,0,0,0.3));
}
.catalog-cover .cover-label {
  position: absolute;
  bottom: 14px; left: 14px; right: 14px;
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  text-align: center;
}
.catalog-body { position: relative; z-index: 1; }
.catalog-body .meta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(31,157,97,0.12); color: var(--green-700);
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.5px;
  text-transform: uppercase; margin-bottom: 12px;
}
.catalog-body h3 { margin: 0 0 8px; font-size: 1.25rem; }
.catalog-body p { margin: 0 0 14px; font-size: 0.92rem; }
.catalog-info {
  display: flex; gap: 16px; flex-wrap: wrap;
  font-size: 0.82rem; color: var(--muted);
  margin-bottom: 18px;
}
.catalog-info span {
  display: inline-flex; align-items: center; gap: 6px;
}
.catalog-info svg { width: 14px; height: 14px; color: var(--green-500); }
.catalog-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-sm { padding: 10px 18px; font-size: 0.88rem; }

@media (max-width: 720px) {
  .catalog-grid { grid-template-columns: 1fr; }
  .catalog-card { grid-template-columns: 1fr; padding: 24px; }
  .catalog-cover { max-width: 180px; margin: 0 auto; transform: none; }
}

/* ---------- Certificate Carousel ---------- */
.cert-carousel {
  position: relative;
  padding: 0 60px;
}
.cert-track-wrap {
  overflow: hidden;
  border-radius: var(--radius);
  scroll-snap-type: x mandatory;
}
.cert-track {
  display: flex;
  gap: 28px;
  transition: transform 0.7s cubic-bezier(.4,0,.2,1);
  will-change: transform;
}
.cert-slide {
  flex: 0 0 calc((100% - 56px) / 3);
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 24px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
  scroll-snap-align: start;
}
.cert-slide:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.cert-slide .cert-img {
  aspect-ratio: 3/4;
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  cursor: zoom-in;
}
.cert-slide .cert-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 10px;
  transition: transform var(--transition);
}
.cert-slide:hover .cert-img img { transform: scale(1.04); }
.cert-slide h4 {
  margin: 0 0 6px;
  color: var(--navy);
  font-size: 1.05rem;
}
.cert-slide p {
  margin: 0;
  font-size: 0.85rem;
}

.cert-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--navy);
  display: grid; place-items: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  z-index: 3;
}
.cert-nav:hover {
  background: var(--green-500);
  color: #fff;
  border-color: var(--green-500);
  transform: translateY(-50%) scale(1.05);
}
.cert-nav.prev { left: 0; }
.cert-nav.next { right: 0; }
.cert-nav svg { width: 18px; height: 18px; }

.cert-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 26px;
}
.cert-dots button {
  width: 10px; height: 10px; border-radius: 50%;
  border: 0; background: var(--line); cursor: pointer;
  padding: 0; transition: all var(--transition);
}
.cert-dots button.active {
  background: var(--green-500);
  width: 28px;
  border-radius: 6px;
}

/* Lightbox */
.cert-lightbox {
  position: fixed; inset: 0;
  background: rgba(10, 31, 51, 0.92);
  display: none; align-items: center; justify-content: center;
  z-index: 999; padding: 30px;
  backdrop-filter: blur(6px);
}
.cert-lightbox.open { display: flex; }
.cert-lightbox img {
  max-width: 92vw;
  max-height: 90vh;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  background: #fff;
}
.cert-lightbox .close {
  position: absolute; top: 24px; right: 24px;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.15); color: #fff;
  border: 0; cursor: pointer; font-size: 1.6rem; line-height: 1;
  transition: background var(--transition);
}
.cert-lightbox .close:hover { background: rgba(255,255,255,0.3); }

@media (max-width: 992px) {
  .cert-slide { flex: 0 0 calc((100% - 28px) / 2); }
}
@media (max-width: 720px) {
  .cert-carousel { padding: 0 44px; }
  .cert-slide { flex: 0 0 100%; }
  .cert-nav { width: 38px; height: 38px; }
}

/* ---------- Reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 420px; margin: 0 auto; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .split, .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
  .vision-mission { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  section { padding: 60px 0; }
  .hero { padding: 60px 0 70px; }
  .hero-stats { grid-template-columns: 1fr; gap: 16px; padding-top: 28px; margin-top: 32px; }
  .grid-2, .grid-3, .grid-4, .industries-grid, .portfolio-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 70px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 20px; gap: 4px; border-bottom: 1px solid var(--line);
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-cta { margin: 8px 0 0; }
  .cta-banner .container { flex-direction: column; text-align: center; }
}