/* =============================================
   OZONE INDIA SOLUTION — Custom Stylesheet
   ============================================= */

:root {
  --primary:       #0a6ebd;
  --primary-dark:  #074f8a;
  --primary-light: #e8f3fb;
  --accent:        #00c6a0;
  --accent-dark:   #009e80;
  --text:          #1a2340;
  --text-muted:    #6b7a99;
  --bg-light:      #f5f8fc;
  --white:         #ffffff;
  --border:        #dde5f0;
  --radius-sm:     6px;
  --radius-md:     12px;
  --radius-lg:     20px;
  --shadow-sm:     0 2px 8px rgba(10,110,189,.08);
  --shadow-md:     0 6px 24px rgba(10,110,189,.13);
  --shadow-lg:     0 16px 48px rgba(10,110,189,.18);
  --transition:    all .25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Open Sans', sans-serif;
  color: var(--text);
  background: #fff;
  font-size: 15px;
  line-height: 1.7;
}

h1,h2,h3,h4,h5,h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  color: var(--text);
}

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

/* =============================================
   TOP BAR
   ============================================= */
.topbar {
  background: var(--primary-dark);
  color: #fff;
  font-size: 12.5px;
  padding: 6px 0;
}
.topbar-link { color: rgba(255,255,255,.85); transition: var(--transition); }
.topbar-link:hover { color: #fff; }
.topbar-social {
  color: rgba(255,255,255,.7);
  font-size: 14px;
  width: 26px; height: 26px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.2);
  transition: var(--transition);
}
.topbar-social:hover { background: rgba(255,255,255,.15); color: #fff; }

/* =============================================
   NAVBAR
   ============================================= */
#mainNavbar {
  background: #fff;
  box-shadow: 0 2px 12px rgba(10,110,189,.08);
  padding: 10px 0;
  transition: var(--transition);
  z-index: 1030;
}
.navbar-logo {
  width: 56px; height: 56px;
  object-fit: contain; border-radius: 50%;
  border: 2px solid var(--primary-light);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-family: 'Poppins', sans-serif; font-weight: 800; font-size: 1rem; color: var(--primary); }
.brand-sub { font-size: .72rem; color: var(--text-muted); letter-spacing: .5px; text-transform: uppercase; }

#mainNavbar .nav-link {
  font-family: 'Poppins', sans-serif; font-weight: 500; font-size: .84rem;
  color: var(--text); padding: .38rem .55rem; border-radius: var(--radius-sm); transition: var(--transition);
}
#mainNavbar .nav-link:hover,
#mainNavbar .nav-link.active { color: var(--primary); background: var(--primary-light); }

#mainNavbar .btn-primary {
  background: var(--primary); border-color: var(--primary);
  font-family: 'Poppins', sans-serif; font-weight: 600; font-size: .84rem;
  border-radius: var(--radius-md);
}
#mainNavbar .btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }

/* =============================================
   HERO
   ============================================= */
.hero-section {
  background: linear-gradient(135deg, #063c72 0%, #0a6ebd 55%, #00c6a0 100%);
  position: relative; overflow: hidden; padding: 80px 0 0;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.min-vh-hero { min-height: 560px; padding: 40px 0 100px; }
.hero-badge {
  background: rgba(255,255,255,.15); backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,.25); color: #fff;
  font-size: .78rem; font-weight: 600; padding: 5px 14px;
  border-radius: 100px; letter-spacing: .4px;
}
.hero-title { font-size: clamp(2rem, 5vw, 3.5rem); color: #fff; font-weight: 800; line-height: 1.15; margin-bottom: 20px; }
.text-accent { color: #7ef8e1; }
.hero-desc { color: rgba(255,255,255,.82); font-size: 1rem; max-width: 540px; }

.btn-primary {
  background: var(--accent); border-color: var(--accent);
  font-weight: 600; font-family: 'Poppins', sans-serif;
  border-radius: var(--radius-md); transition: var(--transition);
}
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn-outline-light { border-radius: var(--radius-md); font-family: 'Poppins', sans-serif; font-weight: 600; }
.btn-outline-primary {
  border-color: var(--primary); color: var(--primary);
  font-family: 'Poppins', sans-serif; font-weight: 600;
  border-radius: var(--radius-md); transition: var(--transition);
}
.btn-outline-primary:hover { background: var(--primary); color: #fff; }

.hero-stats { gap: 32px !important; }
.stat-item { display: flex; flex-direction: column; }
.stat-num { font-family: 'Poppins', sans-serif; font-size: 2rem; font-weight: 800; color: #fff; line-height: 1; }
.stat-label { color: rgba(255,255,255,.7); font-size: .75rem; margin-top: 2px; letter-spacing: .3px; }

.hero-img-wrap { position: relative; }
.hero-product-img {
  width: 100%; max-width: 100%; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  filter: drop-shadow(0 8px 32px rgba(0,0,0,.3)) contrast(1.18) brightness(1.12) saturate(1.2);
  image-rendering: -webkit-optimize-contrast;
}
.hero-float-card {
  position: absolute; bottom: -16px; left: -20px;
  background: #fff; border-radius: var(--radius-md); padding: 12px 18px;
  display: flex; align-items: center; gap: 10px; box-shadow: var(--shadow-md);
  font-family: 'Poppins', sans-serif;
}
.hero-wave { position: absolute; bottom: -1px; left: 0; right: 0; line-height: 0; }
.hero-wave svg { width: 100%; height: 60px; display: block; }

/* =============================================
   HIGHLIGHTS STRIP
   ============================================= */
.highlights-strip { background: var(--primary); padding: 24px 0; }
.highlight-item { display: flex; flex-direction: column; align-items: center; gap: 8px; color: #fff; }
.highlight-icon { font-size: 1.8rem; color: rgba(255,255,255,.85); }
.highlight-text { font-family: 'Poppins', sans-serif; font-weight: 600; font-size: .82rem; letter-spacing: .2px; }

/* =============================================
   SECTION UTILITIES
   ============================================= */
.section-pad { padding: 80px 0; }
.section-eyebrow {
  font-family: 'Poppins', sans-serif; font-weight: 700; font-size: .75rem;
  letter-spacing: 1.5px; text-transform: uppercase; color: var(--accent);
  display: block; margin-bottom: 8px;
}
.section-title { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; margin-bottom: 16px; color: var(--text); }
.section-subtitle { color: var(--text-muted); max-width: 560px; font-size: .96rem; }
.section-desc { color: var(--text-muted); margin-bottom: 16px; }
.text-white-75 { color: rgba(255,255,255,.75); }

/* =============================================
   ABOUT SECTION — PRODUCT SHOWCASE
   ============================================= */
.about-showcase {
  position: relative;
  padding: 24px 24px 24px 36px;
  min-height: 420px;
}
.abt-img-wrap { position: relative; }
.abt-product-img {
  width: 100%; max-width: 100%; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  filter: drop-shadow(0 8px 32px rgba(0,0,0,.3)) contrast(1.18) brightness(1.12) saturate(1.2);
  image-rendering: -webkit-optimize-contrast;
}

/* Tilted blue background panel */
.showcase-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, #0a6ebd 0%, #063c72 100%);
  border-radius: var(--radius-lg);
  transform: rotate(-2deg);
  z-index: 0;
}

/* Left accent bar */
.showcase-accent-bar {
  position: absolute;
  top: 32px; left: 16px; bottom: 32px;
  width: 4px;
  background: var(--accent);
  border-radius: 4px;
  z-index: 2;
}

/* Dot grid decoration */
.showcase-dots {
  position: absolute;
  top: 12px; right: 12px;
  width: 80px; height: 80px;
  background-image: radial-gradient(circle, rgba(255,255,255,.25) 1.5px, transparent 1.5px);
  background-size: 12px 12px;
  z-index: 1;
  border-radius: 4px;
}

/* Cards row */
.showcase-cards {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

/* Individual product card */
.prod-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,.45);
  flex-shrink: 0;
  border: 2px solid rgba(255,255,255,.15);
}
.prod-card--main { width: 56%; margin-top: 12px; }
.prod-card--sub  { width: 42%; margin-top: 48px; }

.prod-card-inner { position: relative; }

/* The actual photo — sharpened via SVG filter */
.prod-img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
  object-position: center top;
  filter: url(#sharpen) contrast(1.25) brightness(1.18) saturate(1.2);
  image-rendering: -webkit-optimize-contrast;
}
.prod-card--sub .prod-img { height: 200px; }

/* Gradient overlay — fades blurry bottom edge into dark */
.prod-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 40%,
    rgba(6, 30, 60, 0.7) 100%
  );
  pointer-events: none;
}

/* Label inside card */
.prod-card-label {
  position: absolute;
  bottom: 10px; left: 10px; right: 10px;
  color: #fff;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .3px;
  z-index: 2;
}
.prod-card-label i { color: var(--accent); }

/* Floating badge */
.about-badge-card {
  position: absolute;
  bottom: -10px; right: 12px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-md);
  padding: 14px 20px;
  text-align: center;
  box-shadow: var(--shadow-md);
  z-index: 3;
}
.about-badge-num {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-size: 2rem; font-weight: 800; line-height: 1;
}
.about-badge-txt { font-size: .72rem; font-weight: 600; color: rgba(255,255,255,.85); letter-spacing: .3px; }

.about-point { font-weight: 600; font-size: .88rem; display: flex; align-items: center; }

/* =============================================
   TECHNOLOGY INTRO SECTION
   ============================================= */
.tech-intro-section {
  background: linear-gradient(135deg, #063c72 0%, #0a6ebd 100%);
  padding: 72px 0;
}
.tech-card {
  background: rgba(255,255,255,.1); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.2); border-radius: var(--radius-md);
  padding: 32px 24px; color: #fff; transition: var(--transition);
}
.tech-card:hover { background: rgba(255,255,255,.18); transform: translateY(-4px); }
.tech-card h5 { color: #fff; font-weight: 700; margin-bottom: 12px; }
.tech-card p { font-size: .88rem; color: rgba(255,255,255,.78); margin: 0; }
.tech-icon-wrap {
  width: 60px; height: 60px; background: rgba(255,255,255,.15);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
}
.tech-icon { font-size: 1.6rem; color: #7ef8e1; }

/* =============================================
   SERVICE CARDS v2 (image-based)
   ============================================= */
.service-card-v2 {
  background: #fff; border-radius: var(--radius-md); border: 1.5px solid var(--border);
  overflow: hidden; transition: var(--transition);
}
.service-card-v2:hover { box-shadow: var(--shadow-md); transform: translateY(-5px); border-color: var(--primary); }
.service-card-v2.featured-card { border-color: var(--primary); }
.service-card-v2.featured-card .service-title { color: var(--primary); }

.service-img-wrap { position: relative; overflow: hidden; height: 180px; }
.service-img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .45s ease;
}
.service-card-v2:hover .service-img { transform: scale(1.06); }

.service-img-badge {
  position: absolute; top: 12px; left: 12px;
  background: rgba(10,110,189,.85); color: #fff;
  font-size: .72rem; font-weight: 700; letter-spacing: .5px;
  padding: 3px 10px; border-radius: 100px; text-transform: uppercase;
}
.service-img-badge.badge-primary { background: var(--accent); }

.service-body { padding: 22px 20px; }
.service-icon-sm {
  width: 42px; height: 42px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px; font-size: 1.1rem;
}
.bg-primary-soft { background: var(--primary-light); }
.bg-success-soft { background: #e8f9f4; }
.bg-info-soft    { background: #e8f4fd; }
.bg-warning-soft { background: #fef9e7; }
.bg-danger-soft  { background: #fdecea; }
.bg-primary      { background: var(--primary) !important; }

.service-title { font-size: .98rem; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.service-desc { font-size: .84rem; color: var(--text-muted); margin-bottom: 12px; line-height: 1.65; }
.service-list { list-style: none; margin: 0 0 16px; padding: 0; color: var(--text-muted); font-size: .83rem; }
.service-list li { padding: 3px 0; }
.service-list li::before { content: '→ '; color: var(--accent); font-weight: 700; }
.service-link {
  font-family: 'Poppins', sans-serif; font-weight: 600; font-size: .82rem;
  color: var(--primary); display: inline-flex; align-items: center; transition: var(--transition);
}
.service-link:hover { color: var(--primary-dark); gap: 4px; }

/* =============================================
   OXYGEN CONCENTRATOR SECTION
   ============================================= */
.oxygen-section { background: var(--bg-light); }
.oxygen-img-wrap { position: relative; }
.oxygen-main-img { width: 100%; max-width: 100%; display: block; }
.oxygen-badge {
  position: absolute; top: 24px; left: -16px;
  background: #fff; border-radius: var(--radius-md); padding: 16px 20px;
  text-align: center; box-shadow: var(--shadow-md); min-width: 100px;
}
.oxygen-badge .fw-bold { font-family: 'Poppins', sans-serif; font-size: 1.3rem; color: var(--primary); }

.oxy-feature {
  display: flex; align-items: center; gap: 12px;
  background: #fff; border-radius: var(--radius-sm); padding: 12px 14px;
  border: 1.5px solid var(--border); transition: var(--transition);
}
.oxy-feature:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.oxy-icon { font-size: 1.4rem; color: var(--primary); flex-shrink: 0; }

.oxygen-specs { border-radius: var(--radius-sm); overflow: hidden; border: 1.5px solid var(--border); }
.spec-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 16px; border-bottom: 1px solid var(--border);
  font-size: .88rem;
}
.spec-row:last-child { border-bottom: none; }
.spec-label { color: var(--text-muted); font-weight: 500; }
.spec-val { font-family: 'Poppins', sans-serif; font-weight: 700; color: var(--primary); }
.spec-row:nth-child(odd) { background: #f8fafd; }

/* =============================================
   PRODUCT GALLERY
   ============================================= */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 220px;
  gap: 12px;
}
.gallery-item--wide {
  grid-column: span 2;
  grid-row: span 2;
}
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: #0a1f3d;
  cursor: pointer;
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
  filter: contrast(1.15) brightness(1.08) saturate(1.1);
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(6,30,60,.85) 0%, transparent 100%);
  color: #fff;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: .78rem;
  padding: 24px 12px 10px;
  opacity: 0;
  transition: opacity .3s ease;
}
.gallery-item:hover .gallery-caption { opacity: 1; }

@media (max-width: 767.98px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 160px;
  }
  .gallery-item--wide { grid-column: span 2; grid-row: span 1; }
}
@media (max-width: 479.98px) {
  .gallery-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 130px; }
}

/* =============================================
   INDUSTRIES SECTION
   ============================================= */
.industry-card {
  background: #fff; border-radius: var(--radius-md); padding: 22px 16px;
  text-align: center; border: 1.5px solid var(--border); transition: var(--transition);
}
.industry-card:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.industry-icon { font-size: 1.9rem; display: block; margin-bottom: 10px; }
.industry-name { font-family: 'Poppins', sans-serif; font-weight: 600; font-size: .84rem; color: var(--text); line-height: 1.3; }

/* =============================================
   WHY CHOOSE US
   ============================================= */
.why-section { background: linear-gradient(135deg, #063c72 0%, #0a6ebd 100%); }
.why-card {
  background: rgba(255,255,255,.1); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.2); border-radius: var(--radius-md);
  padding: 24px; color: #fff; transition: var(--transition);
}
.why-card:hover { background: rgba(255,255,255,.18); transform: translateY(-3px); }
.why-icon { font-size: 2rem; color: #7ef8e1; display: block; margin-bottom: 12px; }
.why-card h6 { font-family: 'Poppins', sans-serif; font-weight: 700; color: #fff; margin-bottom: 8px; }
.why-card p { font-size: .86rem; color: rgba(255,255,255,.75); margin: 0; }

/* =============================================
   VIDEO SHOWCASE
   ============================================= */
.bg-dark-blue { background: linear-gradient(135deg, #04203f 0%, #063c72 100%); }
.text-white-60 { color: rgba(255,255,255,.6); }
.text-accent { color: var(--accent); }

.video-showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.video-showcase-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.video-showcase-card:hover {
  border-color: rgba(0,198,160,.5);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,.35);
}
.video-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: #021526;
  overflow: hidden;
}
.showcase-video {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.video-overlay-badge {
  position: absolute;
  top: 10px; left: 10px;
  background: rgba(0,198,160,.85);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  font-family: 'Poppins', sans-serif;
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: .04em;
}
.video-card-info {
  padding: 18px 20px 20px;
}
.video-card-title {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  margin-bottom: 6px;
}
.video-card-desc {
  font-size: .84rem;
  color: rgba(255,255,255,.6);
  margin: 0;
  line-height: 1.55;
}

/* Fallback when video file not yet loaded — show placeholder gradient */
.video-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #063c72 0%, #0a6ebd 100%);
  z-index: 0;
}
.showcase-video { z-index: 1; }
.video-overlay-badge { z-index: 2; }

@media (max-width: 991.98px) {
  .video-showcase-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 575.98px) {
  .video-showcase-grid { grid-template-columns: 1fr; }
}

/* =============================================
   CONTACT SECTION
   ============================================= */
.contact-info-card {
  background: #fff; border-radius: var(--radius-md); padding: 18px 20px;
  border: 1.5px solid var(--border);
  display: flex; align-items: flex-start; gap: 14px; transition: var(--transition);
}
.contact-info-card:hover { box-shadow: var(--shadow-sm); border-color: var(--primary); }
.contact-icon-wrap {
  width: 40px; height: 40px; min-width: 40px;
  background: var(--primary-light); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
}
.contact-icon { color: var(--primary); font-size: 1.1rem; }
.contact-info-label { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); margin-bottom: 3px; }
.contact-info-value { font-size: .9rem; font-weight: 600; color: var(--text); display: block; transition: var(--transition); }
a.contact-info-value:hover { color: var(--primary); }
.map-embed { border: 1.5px solid var(--border); }

.contact-form-card {
  background: #fff; border-radius: var(--radius-lg);
  padding: 36px 32px; border: 1.5px solid var(--border); box-shadow: var(--shadow-sm);
}
.contact-form-card .form-label { font-family: 'Poppins', sans-serif; font-weight: 600; font-size: .84rem; color: var(--text); }
.contact-form-card .form-control,
.contact-form-card .form-select {
  border-color: var(--border); border-radius: var(--radius-sm);
  font-size: .9rem; padding: 10px 14px; transition: var(--transition);
}
.contact-form-card .form-control:focus,
.contact-form-card .form-select:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(10,110,189,.12);
}
.contact-form-card .btn-primary {
  background: var(--primary); border-color: var(--primary);
  border-radius: var(--radius-md); font-family: 'Poppins', sans-serif;
  font-weight: 700; padding: 12px; transition: var(--transition);
}
.contact-form-card .btn-primary:hover { background: var(--primary-dark); }

/* =============================================
   FOOTER
   ============================================= */
.footer { background: #071f45; padding: 60px 0 0; }
.footer-logo { width: 52px; height: 52px; object-fit: contain; border-radius: 50%; }
.footer-heading { font-family: 'Poppins', sans-serif; font-weight: 700; color: #fff; margin-bottom: 16px; font-size: .9rem; letter-spacing: .4px; text-transform: uppercase; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 9px; }
.footer-links li a { color: rgba(255,255,255,.65); font-size: .88rem; transition: var(--transition); }
.footer-links li a:hover { color: #fff; padding-left: 4px; }
.footer-contact-list { list-style: none; padding: 0; margin: 0; }
.footer-contact-list li { color: rgba(255,255,255,.65); font-size: .88rem; margin-bottom: 11px; display: flex; align-items: flex-start; }
.footer-contact-list li i { margin-top: 3px; color: var(--accent); flex-shrink: 0; }
.footer-contact-list li a { color: rgba(255,255,255,.65); transition: var(--transition); }
.footer-contact-list li a:hover { color: #fff; }
.footer-social {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.2); display: inline-flex;
  align-items: center; justify-content: center;
  color: rgba(255,255,255,.7); font-size: 15px; transition: var(--transition);
}
.footer-social:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.footer-bottom { background: rgba(0,0,0,.2); padding: 14px 0; margin-top: 40px; }

/* =============================================
   BACK TO TOP
   ============================================= */
.back-to-top {
  position: fixed; bottom: 28px; right: 28px;
  width: 44px; height: 44px; background: var(--primary); color: #fff;
  border: none; border-radius: 50%; box-shadow: var(--shadow-md);
  cursor: pointer; opacity: 0; pointer-events: none; transition: var(--transition);
  z-index: 999; display: flex; align-items: center; justify-content: center; font-size: 1.1rem;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { background: var(--primary-dark); transform: translateY(-2px); }

/* =============================================
   RESPONSIVE TWEAKS
   ============================================= */
@media (max-width: 991.98px) {
  .about-showcase { margin-bottom: 32px; min-height: auto; padding: 20px; }
  .showcase-bg { transform: rotate(-1deg); }
  .prod-card--main { width: 54%; }
  .prod-card--sub  { width: 44%; }
  .prod-img { height: 200px; }
  .prod-card--sub .prod-img { height: 160px; }
  .about-badge-card { bottom: -14px; right: 8px; padding: 10px 14px; }
  .about-badge-num { font-size: 1.6rem; }
  .contact-form-card { padding: 24px 20px; }
  .oxygen-badge { top: 12px; left: 4px; }
}

@media (max-width: 575.98px) {
  .section-pad { padding: 56px 0; }
  .hero-title { font-size: 1.9rem; }
  .contact-form-card { padding: 20px 16px; }
  .topbar { font-size: 11px; }
}