/* ==========================================================================
   S.V. Enterprises — Portfolio Site Styles
   ========================================================================== */

:root {
  --navy: #262b2e;
  --navy-2: #303538;
  --navy-3: #3c4246;
  --blue: #1c7fc4;
  --blue-light: #4fa8e0;
  --cyan: #2fa848;
  --amber: #ffb400;
  --bg: #f6f8fc;
  --bg-alt: #eef2f9;
  --white: #ffffff;
  --text: #23272a;
  --text-muted: #5c6266;
  --border: #e3e5e8;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px -10px rgba(20, 24, 26, 0.15);
  --shadow-lg: 0 20px 50px -15px rgba(20, 24, 26, 0.25);
  --transition: 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  font-family: 'Poppins', 'Inter', sans-serif;
  color: var(--navy);
  line-height: 1.25;
}

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

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

ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.hidden-field { position: absolute; left: -9999px; opacity: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--navy-3));
  color: var(--white);
  box-shadow: 0 10px 25px -8px rgba(28, 127, 196, 0.55);
}
.btn-primary:hover { box-shadow: 0 14px 30px -8px rgba(28, 127, 196, 0.65); }

.btn-outline {
  border-color: rgba(255,255,255,0.5);
  color: var(--white);
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(4px);
}
.btn-outline:hover { background: rgba(255,255,255,0.16); }

.btn-whatsapp {
  background: #25d366;
  color: var(--white);
}

.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--navy);
  color: rgba(255,255,255,0.85);
  font-size: 0.82rem;
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 24px;
  gap: 12px;
  flex-wrap: wrap;
}
.topbar-left { display: flex; gap: 22px; }
.topbar-left a { display: flex; align-items: center; gap: 6px; color: inherit; }
.topbar-left a:hover { color: var(--cyan); }
.topbar-right { display: flex; align-items: center; gap: 18px; }
.rating-pill {
  background: rgba(255,180,0,0.15);
  color: var(--amber);
  padding: 3px 10px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition), padding var(--transition);
}
.header.scrolled { box-shadow: var(--shadow); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  gap: 20px;
}

.logo { display: flex; align-items: center; gap: 12px; }
.logo-badge {
  width: 62px; height: 62px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
}
.logo-badge img { width: 100%; height: 100%; object-fit: contain; }
.logo-text { font-family: 'Poppins', sans-serif; font-size: 1.3rem; color: var(--navy); line-height: 1.2; }
.logo-text strong { color: var(--blue); }

.nav { display: flex; gap: 28px; }
.nav a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text);
  position: relative;
  padding: 6px 0;
}
.nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--blue);
  transition: width var(--transition);
}
.nav a:hover, .nav a.active { color: var(--blue); }
.nav a:hover::after, .nav a.active::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 10px; }
.header-actions .btn { padding: 10px 18px; font-size: 0.88rem; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  width: 24px; height: 2.5px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-3) 55%, #1c5f8f 100%);
  color: var(--white);
  padding: 90px 0 70px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(28,127,196,0.35), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(47,168,72,0.25), transparent 45%),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.025) 0 2px, transparent 2px 40px);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #cfe0ff;
  margin-bottom: 22px;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2rem, 4vw, 2.9rem);
  font-weight: 700;
  margin-bottom: 18px;
}

.hero-sub {
  color: rgba(255,255,255,0.8);
  font-size: 1.05rem;
  max-width: 560px;
  margin-bottom: 30px;
}

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 46px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, auto);
  gap: 30px;
}
.stat { display: flex; flex-direction: column; }
.stat-num, .stat-suffix {
  font-family: 'Poppins', sans-serif;
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--white);
  display: inline;
}
.stat-suffix { color: var(--cyan); }
.stat-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.65);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 4px;
}

.hero-visual {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  min-height: 380px;
  perspective: 1000px;
}
.hero-orb {
  position: absolute;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(28,127,196,0.4), transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 0;
  filter: blur(10px);
}

.hero-rings {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.ring {
  position: absolute;
  top: 50%; left: 50%;
  border: 1px solid rgba(47,168,72,0.28);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: ringPulse 4.5s ease-out infinite;
}
.ring-1 { width: 180px; height: 180px; }
.ring-2 { width: 300px; height: 300px; animation-delay: 1.1s; }
.ring-3 { width: 420px; height: 420px; animation-delay: 2.2s; }
@keyframes ringPulse {
  0% { opacity: 0.5; transform: translate(-50%, -50%) scale(0.85); }
  70% { opacity: 0; }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.1); }
}

.hero-scan {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  border-radius: var(--radius);
  overflow: hidden;
}
.hero-scan::before {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 46%;
  background: linear-gradient(180deg, transparent, rgba(47,168,72,0.14) 45%, rgba(47,168,72,0.05) 55%, transparent);
  animation: scanSweep 5s ease-in-out infinite;
}
@keyframes scanSweep {
  0% { top: -46%; }
  55% { top: 100%; }
  100% { top: 100%; }
}

.hero-card {
  position: relative;
  z-index: 1;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 18px 14px 16px;
  text-align: center;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--white);
  transition: box-shadow 0.35s ease, border-color 0.35s ease;
  will-change: transform;
  transform: translate3d(var(--px, 0px), var(--py, 0px), 0);
}
.hero-card:hover {
  box-shadow: 0 20px 40px -12px rgba(0,0,0,0.45);
  border-color: rgba(47,168,72,0.5);
}
.card-cctv { margin-top: 10px; }
.card-barrier { margin-top: -10px; }
.card-access { margin-top: -10px; }
.card-it { margin-top: 10px; }

@media (prefers-reduced-motion: reduce) {
  .hero-card { transform: none !important; }
  .ring, .hero-scan::before { animation: none; }
}

.hero-card-media {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-card-media img { width: 100%; height: 100%; object-fit: contain; padding: 6px; }
.hero-card-media-photo img { object-fit: cover; padding: 0; }
.hero-card-media-color { background: linear-gradient(160deg, #ff8a3d, #ffb347); }

/* ---------- Trust strip ---------- */
.trust-strip {
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.trust-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--navy);
}
.trust-item i { color: var(--blue); font-size: 1.05rem; }

/* ---------- Sections ---------- */
.section { padding: 90px 0; }
.section-alt { background: var(--bg); }
.section-dark {
  background: linear-gradient(160deg, var(--navy), #1c4a68);
  color: var(--white);
}
.section-dark h2, .section-dark h4 { color: var(--white); }

.section-head { text-align: center; max-width: 640px; margin: 0 auto 54px; }
.section-tag {
  display: inline-block;
  color: var(--blue);
  background: rgba(28,127,196,0.1);
  padding: 6px 16px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-tag-light { background: rgba(255,255,255,0.12); color: var(--cyan); }
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 14px; }
.section-head p { color: var(--text-muted); font-size: 1.02rem; }

.catalog-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 18px;
  padding: 10px 20px;
  border-radius: 999px;
  background: #e9fbf0;
  border: 1px solid #bdeccb;
  color: #1a8a3d;
  font-weight: 600;
  font-size: 0.9rem;
  transition: transform var(--transition), box-shadow var(--transition);
}
.catalog-link i:first-child { color: #25d366; font-size: 1.05rem; }
.catalog-link:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: center;
}
.about-photo-frame {
  position: relative;
  border-radius: var(--radius);
  overflow: visible;
}
.about-photo-placeholder {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--navy-3), var(--blue));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.about-photo-placeholder img { width: 100%; height: 100%; object-fit: cover; }
.about-badge {
  position: absolute;
  bottom: -18px; left: -18px;
  background: var(--white);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  padding: 14px 20px;
  text-align: center;
  line-height: 1.2;
}
.about-badge strong { display: block; font-family: 'Poppins', sans-serif; font-size: 1.4rem; color: var(--blue); }
.about-badge span { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.about-badge-2 {
  bottom: auto;
  top: -18px;
  left: auto;
  right: -18px;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 220px;
  text-align: left;
}
.about-badge-2 i { color: var(--amber); font-size: 1.4rem; flex-shrink: 0; }
.about-badge-2 span { text-transform: none; letter-spacing: normal; font-size: 0.72rem; font-weight: 600; color: var(--navy); line-height: 1.35; }

/* ---------- Brands strip ---------- */
.brands-strip { background: var(--white); border-bottom: 1px solid var(--border); padding: 22px 0; }
.brands-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
  text-align: center;
}
.brands-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.brands-list { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.brands-list span {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--navy);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 7px 16px;
  border-radius: 999px;
}

.about-content p { color: var(--text-muted); margin-bottom: 16px; }
.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; margin: 26px 0 30px; }
.point { display: flex; align-items: flex-start; gap: 9px; font-weight: 500; font-size: 0.92rem; }
.point i { color: var(--cyan); margin-top: 3px; }

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.service-icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue), var(--navy-3));
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
}
.service-card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.service-card p { color: var(--text-muted); font-size: 0.9rem; }

/* ---------- Industries ---------- */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.industry-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 16px;
  text-align: center;
  transition: transform var(--transition), background var(--transition), color var(--transition);
}
.industry-card i { font-size: 2rem; color: var(--blue); margin-bottom: 14px; display: block; transition: color var(--transition); }
.industry-card h4 { font-size: 0.92rem; }
.industry-card:hover {
  transform: translateY(-6px);
  background: linear-gradient(160deg, var(--blue), var(--navy));
}
.industry-card:hover i,
.industry-card:hover h4 { color: var(--white); }

/* ---------- Why Us ---------- */
.why-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.why-content > p { color: rgba(255,255,255,0.75); margin-bottom: 30px; max-width: 480px; }
.why-list { display: flex; flex-direction: column; gap: 22px; }
.why-item { display: flex; gap: 16px; align-items: flex-start; }
.why-item i {
  width: 46px; height: 46px;
  flex-shrink: 0;
  border-radius: 12px;
  background: rgba(255,255,255,0.1);
  color: var(--cyan);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.why-item h4 { color: var(--white); font-size: 1rem; margin-bottom: 4px; }
.why-item p { color: rgba(255,255,255,0.65); font-size: 0.88rem; }

.why-visual { display: flex; justify-content: center; }
.rating-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 44px 50px;
  text-align: center;
  backdrop-filter: blur(6px);
}
.rating-big {
  font-family: 'Poppins', sans-serif;
  font-size: 3.2rem;
  font-weight: 700;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.rating-big i { color: var(--amber); font-size: 2rem; }
.rating-card p { color: rgba(255,255,255,0.7); margin: 8px 0 16px; }
.stars { color: var(--amber); font-size: 1.2rem; letter-spacing: 4px; margin-bottom: 14px; }
.rating-source { font-size: 0.78rem; color: rgba(255,255,255,0.5); text-transform: uppercase; letter-spacing: 0.05em; }

/* ---------- Gallery ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.gallery-item {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.gallery-item:hover img { transform: scale(1.08); }
.gallery-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 28px 14px 12px;
  background: linear-gradient(180deg, transparent, rgba(6,16,36,0.85));
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 600;
  transform: translateY(4px);
  opacity: 0.92;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 40px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.info-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.info-card i { color: var(--blue); font-size: 1.2rem; margin-top: 2px; width: 22px; }
.info-card h4 { font-size: 0.92rem; margin-bottom: 3px; }
.info-card p, .info-card a { font-size: 0.9rem; color: var(--text-muted); }
.info-card a:hover { color: var(--blue); }

.map-embed {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}

.contact-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
  box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--navy); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.92rem;
  background: var(--bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(28,127,196,0.15);
}
.form-note { text-align: center; font-size: 0.78rem; color: var(--text-muted); margin-top: 12px; transition: color var(--transition); }
.form-note-success { color: #1a8a3d; font-weight: 600; }
.form-note-error { color: #d9432b; font-weight: 600; }

/* ---------- Footer ---------- */
.footer { background: #17191b; color: rgba(255,255,255,0.7); padding-top: 70px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo-badge { width: 76px; height: 76px; }
.footer-brand .logo-text { font-size: 1.4rem; color: var(--white); }
.footer-brand .logo-text strong { color: var(--blue-light); }
.footer-brand p { margin: 16px 0 20px; font-size: 0.88rem; max-width: 280px; }
.footer-socials { display: flex; gap: 10px; }
.footer-socials a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition);
}
.footer-socials a:hover { background: var(--blue); }

.footer-col h5 { color: var(--white); font-size: 0.95rem; margin-bottom: 18px; }
.footer-col a, .footer-col p { display: block; font-size: 0.88rem; margin-bottom: 12px; color: rgba(255,255,255,0.65); }
.footer-col a:hover { color: var(--cyan); }
.footer-col p i { width: 16px; margin-right: 6px; }

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 22px 24px;
  font-size: 0.8rem;
}

/* ---------- Floating buttons ---------- */
.float-whatsapp {
  position: fixed;
  bottom: 26px; right: 26px;
  width: 58px; height: 58px;
  background: #25d366;
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.7rem;
  box-shadow: 0 10px 25px -5px rgba(37,211,102,0.6);
  z-index: 90;
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(37,211,102,0.5); }
  70% { box-shadow: 0 0 0 14px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}

.back-to-top {
  position: fixed;
  bottom: 26px; left: 26px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  opacity: 0; visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 90;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---------- Reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-reveal].in-view { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
  .about-grid, .why-grid, .contact-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(3, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { max-width: 480px; margin: 0 auto; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .topbar-left { display: none; }
  .topbar-inner { justify-content: center; }
  .nav {
    position: fixed;
    top: 0; right: -280px;
    width: 260px; height: 100vh;
    background: var(--white);
    flex-direction: column;
    padding: 100px 30px;
    gap: 24px;
    box-shadow: var(--shadow-lg);
    transition: right var(--transition);
    z-index: 99;
  }
  .nav.open { right: 0; }
  .header-actions .btn-whatsapp span,
  .header-actions .btn-primary { display: none; }
  .header-actions .btn-whatsapp { padding: 10px 12px; }
  .hamburger { display: flex; }

  .hero { padding: 60px 0 50px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { justify-content: center; }

  .services-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .about-points { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
}