/* ============================================
   IndusFlow Instruments — Home page theme
   White / corporate direction (separate from
   the dark catalog theme, per page-by-page redesign)
   ============================================ */

:root {
  --navy: #0b2a4a;
  --navy-deep: #081f38;
  --orange: #e85d25;
  --orange-dim: #c94c1a;
  --ink: #1b222b;
  --muted: #5a6572;
  --line: #e7eaee;
  --bg-alt: #f5f7f9;
  --font-head: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.55;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ===== Top bar ===== */
.topbar {
  background: var(--navy);
  color: #dce6f0;
  font-size: 0.85rem;
}
.topbar-wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 9px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.topbar-info { display: flex; gap: 22px; flex-wrap: wrap; }
.topbar-info span { display: inline-flex; align-items: center; gap: 6px; }
.topbar-info svg { width: 14px; height: 14px; opacity: 0.85; }

.btn-contact {
  background: var(--orange);
  color: #fff;
  font-weight: 600;
  font-size: 0.82rem;
  padding: 8px 18px;
  border-radius: 3px;
  transition: background 0.15s;
}
.btn-contact:hover { background: var(--orange-dim); }

/* ===== Header ===== */
.main-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.header-wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-block { display: flex; align-items: center; gap: 12px; }
.brand-block .logo-icon {
  width: 46px;
  height: 46px;
  background: var(--navy);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brand-block .logo-icon svg { width: 26px; height: 26px; }
.brand-text .name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.7rem;
  color: var(--navy);
  line-height: 1.1;
}
.brand-text .tagline {
  font-size: 0.78rem;
  color: var(--orange);
  font-weight: 500;
  letter-spacing: 0.01em;
}

nav.main-nav {
  display: flex;
  gap: 32px;
  font-weight: 500;
  font-size: 0.95rem;
}
nav.main-nav a {
  color: var(--ink);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--orange-dim);
  border-color: var(--orange);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle svg { width: 26px; height: 26px; color: var(--navy); }

/* ===== Products dropdown ===== */
.nav-item-dropdown {
  position: relative;
}
.nav-dropdown-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--ink);
  cursor: pointer;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.nav-dropdown-btn:hover,
.nav-dropdown-btn.active {
  color: var(--orange-dim);
  border-color: var(--orange);
}
.nav-dropdown-btn svg {
  width: 14px; height: 14px;
  transition: transform 0.15s;
}
.nav-dropdown-btn.open svg { transform: rotate(180deg); }

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 14px);
  left: 0;
  min-width: 230px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(11,42,74,0.14);
  padding: 8px;
  z-index: 30;
}
.nav-dropdown-menu.open { display: block; }
.nav-dropdown-menu a {
  display: block;
  padding: 11px 14px;
  border-radius: 5px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink);
  border-bottom: none !important;
}
.nav-dropdown-menu a:hover {
  background: var(--bg-alt);
  color: var(--orange-dim);
}

@media (max-width: 900px) {
  .nav-dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    padding: 0 0 0 14px;
    margin-top: 6px;
  }
  .nav-item-dropdown { width: 100%; }
  .nav-dropdown-btn { width: 100%; justify-content: space-between; }
}

/* ===== Hero slider ===== */
.hero-slider {
  position: relative;
  height: 480px;
  overflow: hidden;
  background: var(--navy-deep);
}
.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}
.slide.active { opacity: 1; pointer-events: auto; }
.slide img {
  width: 100%; height: 100%; object-fit: cover;
}
.slide::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(8,31,56,0.82) 0%, rgba(8,31,56,0.45) 55%, rgba(8,31,56,0.2) 100%);
}
.slide-caption {
  position: absolute;
  left: 0; bottom: 0;
  padding: 0 60px 60px;
  max-width: 620px;
  z-index: 2;
  color: #fff;
}
.slide-caption .eyebrow {
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  font-weight: 700;
  margin-bottom: 10px;
}
.slide-caption h2 {
  font-family: var(--font-head);
  font-size: 2.2rem;
  margin: 0 0 14px;
  line-height: 1.15;
}
.slide-caption p {
  font-size: 0.98rem;
  color: #dfe6ee;
  margin: 0 0 22px;
}
.slide-caption .btn-know {
  display: inline-block;
  background: var(--orange);
  color: #fff;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 3px;
  font-size: 0.9rem;
  transition: background 0.15s;
}
.slide-caption .btn-know:hover { background: var(--orange-dim); }

.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.4);
  color: #fff;
  width: 42px; height: 42px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background 0.15s;
}
.slider-arrow:hover { background: rgba(255,255,255,0.3); }
.slider-arrow.prev { left: 20px; }
.slider-arrow.next { right: 20px; }
.slider-arrow svg { width: 20px; height: 20px; }

.slider-dots {
  position: absolute;
  bottom: 20px; right: 40px;
  z-index: 3;
  display: flex; gap: 8px;
}
.slider-dots button {
  width: 9px; height: 9px;
  border-radius: 50%;
  border: 1px solid #fff;
  background: transparent;
  cursor: pointer;
  padding: 0;
}
.slider-dots button.active { background: var(--orange); border-color: var(--orange); }

/* ===== Featured products (Home page) ===== */
.featured-section {
  padding: 80px 24px 70px;
}
.featured-wrap {
  max-width: 1180px;
  margin: 0 auto;
}
.featured-heading {
  text-align: center;
  margin-bottom: 40px;
}
.featured-heading .eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange-dim);
  font-weight: 700;
  margin-bottom: 10px;
}
.featured-heading h2 {
  font-family: var(--font-head);
  color: var(--navy);
  font-size: 1.9rem;
  margin: 0 0 10px;
}
.featured-heading p {
  color: var(--muted);
  font-size: 0.98rem;
  margin: 0;
}

.product-grid.five-col {
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}

.load-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: 4px;
  border: 1px solid var(--navy);
  color: var(--navy);
  background: transparent;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-outline:hover:not(:disabled) {
  background: var(--navy);
  color: #fff;
}
.btn-outline:disabled {
  border-color: var(--line);
  color: var(--muted);
  cursor: not-allowed;
}

@media (max-width: 1080px) {
  .product-grid.five-col { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 700px) {
  .product-grid.five-col { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}
@media (max-width: 460px) {
  .product-grid.five-col { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .product-grid.five-col .thumb { height: 120px; }
  .product-grid.five-col .body { padding: 12px 14px 16px; }
  .product-grid.five-col h3 { font-size: 0.9rem; }
  .product-grid.five-col .cat { font-size: 0.6rem; padding: 3px 8px; margin-bottom: 6px; }
  .product-grid.five-col p.price { font-size: 0.88rem; margin: 4px 0 4px; }
  .product-grid.five-col p { font-size: 0.78rem; }
}

/* ===== Intro / motto section ===== */
.intro-section {
  padding: 80px 24px;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}
.intro-section .eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange-dim);
  font-weight: 700;
  margin-bottom: 14px;
}
.intro-section h2 {
  font-family: var(--font-head);
  font-size: 2rem;
  color: var(--navy);
  margin: 0 0 24px;
}
.intro-section p.body-text {
  color: var(--muted);
  font-size: 1.02rem;
  margin: 0 0 40px;
}

.motto-box {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 34px 40px;
  text-align: left;
}
.motto-box h3 {
  font-family: var(--font-head);
  color: var(--navy);
  font-size: 1.15rem;
  margin: 0 0 18px;
  text-align: center;
}
.motto-box ul {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  gap: 14px;
}
.motto-box li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--ink);
  font-size: 0.95rem;
}
.motto-box li svg {
  width: 18px; height: 18px;
  color: var(--orange);
  flex-shrink: 0;
  margin-top: 3px;
}

/* ===== Client logo slider ===== */
.clients-section {
  background: var(--bg-alt);
  padding: 64px 0 74px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.clients-section .heading {
  text-align: center;
  margin-bottom: 40px;
}
.clients-section .eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange-dim);
  font-weight: 700;
  margin-bottom: 10px;
}
.clients-section h2 {
  font-family: var(--font-head);
  color: var(--navy);
  font-size: 1.7rem;
  margin: 0;
}

.logo-marquee {
  overflow: hidden;
  position: relative;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.logo-track {
  display: flex;
  gap: 50px;
  width: max-content;
  animation: scroll-left 28s linear infinite;
}
.logo-track:hover { animation-play-state: paused; }
.logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 64px;
  padding: 0 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
}

@keyframes scroll-left {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ===== Footer ===== */
footer.site-footer {
  background: var(--navy-deep);
  color: #b9c6d3;
  padding: 40px 0;
  font-size: 0.88rem;
}
.footer-wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-wrap a { color: #b9c6d3; margin-left: 18px; }
.footer-wrap a:hover { color: var(--orange); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  nav.main-nav { display: none; }
  .nav-toggle { display: block; }
  .hero-slider { height: 400px; }
  .slide-caption { padding: 0 24px 40px; max-width: 90%; }
  .slide-caption h2 { font-size: 1.6rem; }
  .motto-box { padding: 26px 22px; }
}

nav.main-nav.mobile-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 16px 24px;
  gap: 16px;
}

@media (prefers-reduced-motion: reduce) {
  .slide, .logo-track { transition: none; animation: none; }
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ===== Floating WhatsApp button ===== */
#whatsapp-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  z-index: 90;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(0,0,0,0.25);
  transition: transform 0.15s, box-shadow 0.15s;
  animation: whatsapp-pulse 2.4s ease-in-out infinite;
}
#whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 24px rgba(0,0,0,0.32);
}
#whatsapp-float svg {
  width: 30px;
  height: 30px;
  color: #fff;
}

@keyframes whatsapp-pulse {
  0%, 100% { box-shadow: 0 6px 18px rgba(0,0,0,0.25), 0 0 0 0 rgba(37,211,102,0.5); }
  50% { box-shadow: 0 6px 18px rgba(0,0,0,0.25), 0 0 0 10px rgba(37,211,102,0); }
}

@media (max-width: 560px) {
  #whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 18px;
    right: 18px;
  }
  #whatsapp-float svg { width: 26px; height: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  #whatsapp-float { animation: none; }
}