/* =========================================================
   United Cooling Towers — Main Stylesheet
========================================================= */
:root {
  --primary: #0b5ed7;
  --primary-dark: #094bb0;
  --secondary: #1e293b;
  --accent: #16a34a;
  --bg-light: #f8fafc;
  --white: #ffffff;
  --text-muted: #5b6473;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-hover: 0 18px 40px rgba(15, 23, 42, 0.14);
  --transition: all 0.35s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: "Inter", "Poppins", sans-serif;
  color: var(--secondary);
  background: var(--white);
  overflow-x: hidden;
  width: 100%;
  position: relative;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Poppins", "Inter", sans-serif;
  font-weight: 600;
  color: var(--secondary);
}

a {
  text-decoration: none;
}

.section-pad {
  padding: 90px 0;
}
.bg-light-grey {
  background: var(--bg-light);
}

.section-tag {
  display: inline-block;
  color: var(--primary);
  background: rgba(11, 94, 215, 0.09);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 30px;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
  font-size: 1.05rem;
}

.text-primary-custom {
  color: var(--primary) !important;
}
.text-accent {
  color: var(--accent) !important;
}
.bg-primary-custom {
  background: var(--primary) !important;
}
.bg-secondary-custom {
  background: var(--secondary) !important;
}

/* Buttons */
.btn {
  border-radius: 8px;
  font-weight: 600;
  padding: 11px 26px;
  transition: var(--transition);
  letter-spacing: 0.2px;
}
.btn-primary-custom {
  background: var(--primary);
  border: 2px solid var(--primary);
  color: #fff;
}
.btn-primary-custom:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.btn-outline-custom {
  background: transparent;
  border: 2px solid #fff;
  color: #fff;
}
.btn-outline-custom:hover {
  background: #fff;
  color: var(--secondary);
  transform: translateY(-3px);
}
.btn-accent-custom {
  background: var(--accent);
  border: 2px solid var(--accent);
  color: #fff;
}
.btn-accent-custom:hover {
  background: #128a3e;
  border-color: #128a3e;
  color: #fff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.btn-sm-pill {
  border-radius: 30px;
  font-size: 0.85rem;
  padding: 8px 20px;
}

/* =========================================================
   Site Header (Top Bar + Navbar, merged fixed wrapper)
========================================================= */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
}

/* Top Bar */
.top-bar {
  background: var(--secondary);
  color: #cbd5e1;
  font-size: 0.85rem;
  padding: 8px 0;
  overflow: hidden;
  max-height: 40px;
  opacity: 1;
  transition: var(--transition);
}
.top-bar a {
  color: #cbd5e1;
}
.top-bar a:hover {
  color: #fff;
}
.top-bar i {
  color: var(--accent);
  margin-right: 6px;
}
.top-bar .divider {
  color: #475569;
  margin: 0 12px;
}
.site-header.scrolled .top-bar {
  max-height: 0;
  padding: 0;
  opacity: 0;
}

/* =========================================================
   Navbar
========================================================= */
.main-navbar {
  transition: var(--transition);
  padding: 14px 0;
  background: #fff;
  box-shadow: 0 2px 16px rgba(15, 23, 42, 0.06);
}
.main-navbar .navbar-brand img {
  height: 80px;
  transition: var(--transition);
}
.main-navbar .nav-link {
  color: var(--secondary);
  font-weight: 500;
  margin: 0 10px;
  position: relative;
  transition: var(--transition);
}
.main-navbar .nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}
.main-navbar .nav-link:hover::after,
.main-navbar .nav-link.active::after {
  width: 100%;
}
.main-navbar .nav-link:hover {
  color: var(--primary);
}

.main-navbar.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  padding: 10px 0;
}
.main-navbar .navbar-toggler {
  border: none;
  color: var(--secondary);
}

.nav-cta-btn {
  border-radius: 8px;
  font-weight: 600;
  padding: 9px 20px;
  font-size: 0.92rem;
}
.nav-cta-btn.btn-outline-custom {
  border-color: var(--secondary);
  color: var(--secondary);
}
.nav-cta-btn.btn-outline-custom:hover {
  background: var(--secondary);
  color: #fff;
}

/* =========================================================
   Hero Slider
========================================================= */
.hero-slider {
  position: relative;
  height: 92vh;
  min-height: 620px;
}
.hero-slider .carousel,
.hero-slider .carousel-inner,
.hero-slider .carousel-item {
  height: 100%;
}
.hero-slide {
  height: 100%;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: center;
}
.hero-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    rgba(15, 23, 42, 0.88) 10%,
    rgba(11, 94, 215, 0.55) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
  padding-top: 40px;
}
.hero-content .badge-line {
  color: #fff;
  font-weight: 700;
  line-height: 2rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 1.5rem;
  margin-bottom: 18px;
  display: inline-block;
}
.hero-content h1 {
  color: #fff;
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero-content p {
  font-size: 1.1rem;
  color: #e2e8f0;
  max-width: 620px;
  margin-bottom: 32px;
}
.hero-slider .carousel-indicators {
  bottom: 30px;
}
.hero-slider .carousel-indicators [data-bs-target] {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: #fff;
  opacity: 0.5;
}
.hero-slider .carousel-indicators .active {
  opacity: 1;
  background-color: var(--accent);
}
.hero-slider .carousel-control-prev,
.hero-slider .carousel-control-next {
  width: 6%;
}
.hero-scroll-cue {
  position: absolute;
  bottom: 25px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: #fff;
  font-size: 1.6rem;
  animation: bounceDown 2s infinite;
}
@keyframes bounceDown {
  0%,
  100% {
    transform: translate(-50%, 0);
  }
  50% {
    transform: translate(-50%, 10px);
  }
}

/* Trust strip */
.trust-strip {
  background: var(--white);
  margin-top: -60px;
  position: relative;
  z-index: 5;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 26px 20px;
}
.trust-item i {
  font-size: 1.8rem;
  color: var(--accent);
}
.trust-item span {
  font-weight: 600;
  font-size: 0.98rem;
}

/* =========================================================
   About
========================================================= */
.about-img-wrap {
  position: relative;
}
.about-img-wrap img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  width: 100%;
  object-fit: cover;
}
.about-exp-badge {
  position: absolute;
  bottom: -30px;
  right: -20px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  padding: 22px 26px;
  box-shadow: var(--shadow-hover);
  text-align: center;
}
.about-exp-badge h2 {
  color: #fff;
  font-size: 2.4rem;
  margin-bottom: 0;
}
.about-exp-badge span {
  font-size: 0.85rem;
  color: #dbeafe;
}

.about-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-weight: 500;
}
.about-points i {
  color: var(--accent);
  font-size: 1.2rem;
  margin-top: 2px;
}

/* Counters */
.counter-box {
  text-align: center;
  padding: 30px 15px;
  border-radius: var(--radius);
  background: var(--secondary);
  color: #fff;
}
.counter-box h2 {
  color: var(--accent);
  font-size: 2.6rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.counter-box p {
  color: #cbd5e1;
  margin: 0;
  font-weight: 500;
}

/* =========================================================
   Product Cards
========================================================= */
.product-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  height: 100%;
  border: 1px solid #eef1f5;
}
.product-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
}
.product-img-wrap {
  overflow: hidden;
}
.product-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.product-card:hover .product-img-wrap img {
  transform: scale(1.1);
}
.product-body {
  padding: 24px;
}
.product-body h5 {
  margin-bottom: 10px;
  font-weight: 700;
}
.product-body p {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin-bottom: 18px;
}
.product-actions {
  display: flex;
  gap: 10px;
}
.product-actions .btn {
  flex: 1;
  font-size: 0.85rem;
  padding: 9px 12px;
}

/* =========================================================
   Why Choose Us
========================================================= */
.feature-box {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 26px;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  height: 100%;
  border-top: 3px solid transparent;
}
.feature-box:hover {
  transform: translateY(-8px);
  border-top: 3px solid var(--accent);
  box-shadow: var(--shadow-hover);
}
.feature-icon {
  width: 62px;
  height: 62px;
  border-radius: 16px;
  background: rgba(11, 94, 215, 0.09);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.6rem;
  color: var(--primary);
  transition: var(--transition);
}
.feature-box:hover .feature-icon {
  background: var(--accent);
  color: #fff;
}
.feature-box h5 {
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-box p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.94rem;
}

/* =========================================================
   Process Timeline
========================================================= */
.process-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow-soft);
  height: 100%;
  position: relative;
  transition: var(--transition);
}
.process-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}
.process-num {
  font-size: 2.6rem;
  font-weight: 700;
  color: rgba(11, 94, 215, 0.12);
  line-height: 1;
  margin-bottom: 12px;
}
.process-card h5 {
  font-weight: 700;
  margin-bottom: 12px;
}
.process-card p {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin: 0;
}
.process-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--accent);
}

/* =========================================================
   Gallery
========================================================= */
.gallery-item {
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
  margin-bottom: 24px;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
}
.gallery-item img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: transform 0.6s ease;
  display: block;
}
.gallery-item .gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    0deg,
    rgba(11, 94, 215, 0.85),
    rgba(11, 94, 215, 0)
  );
  display: flex;
  align-items: flex-end;
  padding: 18px;
  opacity: 0;
  transition: var(--transition);
}
.gallery-item:hover .gallery-overlay {
  opacity: 1;
}
.gallery-item:hover img {
  transform: scale(1.15);
}
.gallery-overlay span {
  color: #fff;
  font-weight: 600;
}
.gallery-overlay i {
  color: #fff;
  font-size: 1.4rem;
  margin-left: auto;
}

/* =========================================================
   Certifications & Clients
========================================================= */
.cert-box {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 18px;
  transition: var(--transition);
  text-align: center;
}
.cert-box:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}
.cert-box img {
  border-radius: var(--radius-sm);
  width: 100%;
  height: 340px;
  object-fit: contain;
  background: #fff;
}

.client-logo-box {
  background: #fff;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 130px;
  transition: var(--transition);
}
.client-logo-box:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.client-logo-box img {
  max-height: 90px;
  max-width: 100%;
  object-fit: contain;
}

/* =========================================================
   Contact
========================================================= */
.contact-info-card {
  background: var(--secondary);
  color: #fff;
  border-radius: var(--radius);
  padding: 40px 34px;
  height: 100%;
}
.contact-info-card h4 {
  color: #fff;
  margin-bottom: 24px;
}
.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 22px;
}
.contact-info-item .ci-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-info-item h6 {
  color: #fff;
  margin-bottom: 4px;
  font-weight: 600;
}
.contact-info-item p,
.contact-info-item a {
  color: #cbd5e1;
  margin: 0;
  font-size: 0.92rem;
}

.map-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  line-height: 0;
}
.map-wrap iframe {
  width: 100%;
  height: 100%;
  min-height: 400px;
  border: 0;
}

/* =========================================================
   Footer
========================================================= */
.site-footer {
  background: var(--secondary);
}
.footer-bottom {
  padding: 18px 0;
  font-size: 0.86rem;
  text-align: center;
  color: #94a3b8;
}

/* =========================================================
   Floating Action Buttons
========================================================= */
.fab-stack {
  position: fixed;
  right: 22px;
  bottom: 100px;
  z-index: 1040;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.fab-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.4rem;
  box-shadow: var(--shadow-hover);
  transition: var(--transition);
  position: relative;
}
.fab-btn:hover {
  transform: scale(1.1);
  color: #fff;
}
.fab-call {
  background: var(--primary);
}
.fab-btn .fab-label {
  position: absolute;
  right: 66px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--secondary);
  color: #fff;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.fab-btn:hover .fab-label {
  opacity: 1;
  right: 70px;
}

/* Floating Enquire Now — right side, vertical centre, rotated tab */
.enquire-float-btn {
  position: fixed;
  top: 50%;
  right: -61px;
  width: 170px;
  height: 48px;
  transform: translateY(-50%) rotate(-90deg);
  z-index: 1040;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 8px 8px 0 0;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: var(--shadow-hover);
  transition:
    background 0.35s ease,
    transform 0.35s ease;
}
.enquire-float-btn:hover {
  background: #128a3e;
  color: #fff;
}
.enquire-float-btn i {
  font-size: 1.1rem;
}

/* Mobile sticky bottom bar */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1045;
  background: #fff;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.12);
}
.mobile-sticky-bar a {
  flex: 1;
  text-align: center;
  padding: 12px 4px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--secondary);
  border-right: 1px solid #eef1f5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.mobile-sticky-bar a:last-child {
  border-right: none;
}
.mobile-sticky-bar a i {
  font-size: 1.2rem;
}
.mobile-sticky-bar a.msb-call {
  color: var(--primary);
}
.mobile-sticky-bar a.msb-quote {
  color: var(--accent);
}

/* Enquiry Modal */
.enquiry-modal .modal-content {
  border-radius: var(--radius);
  border: none;
  overflow: hidden;
}
.enquiry-modal .modal-header {
  background: var(--primary);
  color: #fff;
  border: none;
}
.enquiry-modal .btn-close {
  filter: brightness(0) invert(1);
}

/* Back to top */
.back-to-top {
  position: fixed;
  left: 22px;
  bottom: 22px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--secondary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 1040;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
}
.back-to-top:hover {
  background: var(--primary);
  color: #fff;
}

/* =========================================================
   Responsive
========================================================= */
@media (max-width: 991.98px) {
  .main-navbar .navbar-collapse {
    background: #fff;
    margin-top: 14px;
    padding: 18px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-soft);
  }
  .about-exp-badge {
    right: 10px;
    bottom: -24px;
    padding: 16px 20px;
  }
  .about-exp-badge h2 {
    font-size: 1.8rem;
  }
}

@media (max-width: 767.98px) {
  .section-pad {
    padding: 60px 0;
  }
  .hero-slider {
    height: 100vh;
    min-height: 560px;
  }
  .trust-strip {
    margin-top: -40px;
  }
  .trust-item {
    padding: 18px 10px;
    justify-content: center;
    text-align: center;
  }
  .mobile-sticky-bar {
    display: flex;
  }
  .fab-stack {
    bottom: 78px;
    right: 14px;
  }
  .fab-btn {
    width: 48px;
    height: 48px;
    font-size: 1.2rem;
  }
  .fab-btn .fab-label {
    display: none;
  }
  .enquire-float-btn {
    display: none;
  }
  body {
    padding-bottom: 0;
  }
}

@media (max-width: 575.98px) {
  .about-exp-badge {
    position: static;
    margin-top: 16px;
    display: inline-block;
  }
  .contact-info-card {
    padding: 28px 20px;
  }
}

/* AOS fallback smoothing */
[data-aos] {
  pointer-events: auto;
}



.navbar-brand{
  padding-top: 0;
  padding-bottom: 0;
}