/* ==========================================================================
   DryGuard — Advanced Moisture Control Solution
   3D Premium Industrial Corporate Stylesheet with Full 3D Backgrounds
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & Variables
   -------------------------------------------------------------------------- */
:root {
  /* Brand Palette */
  --navy: #0D3540;
  --navy-dark: #071B22;
  --navy-deep: #051419;
  --navy-surface: #103B47;
  --navy-card: #0E303A;
  
  --teal: #167D82;
  --teal-glow: #24C0CA;
  --teal-dark: #0F5E62;
  --teal-light: #32B6BD;
  --teal-subtle: rgba(22, 125, 130, 0.12);
  
  --blue-logo: #2784B5;
  --blue-glow: #40A8E0;
  --blue-light: #EBF4F9;
  
  --aqua: #DFF2F1;
  --aqua-light: #EEF8F7;
  
  --white: #FFFFFF;
  --bg-light: #F4F8FA;
  --bg-card: #FFFFFF;
  --bg-surface-2: #EAF1F4;
  
  --ink: #18333A;
  --ink-secondary: #48636B;
  --ink-muted: #6B838B;
  --ink-light: #9BB0B6;
  
  --border: #DCE7E9;
  --border-light: rgba(220, 231, 232, 0.6);
  --border-glass: rgba(255, 255, 255, 0.16);
  --border-glass-glow: rgba(36, 192, 202, 0.4);
  
  --whatsapp: #25D366;
  --whatsapp-dark: #1EBE5D;
  --whatsapp-bg: #E7FCEE;
  
  --success: #1E8E5A;
  --danger: #D9383A;
  --warning: #F59E0B;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  
  /* Radii */
  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --radius-xl: 34px;
  --radius-full: 9999px;
  
  /* 3D Shadows & Lighting */
  --shadow-sm: 0 4px 12px rgba(7, 27, 34, 0.05);
  --shadow-md: 0 12px 32px rgba(7, 27, 34, 0.08);
  --shadow-3d: 0 20px 50px -10px rgba(7, 27, 34, 0.3), 0 10px 20px -5px rgba(22, 125, 130, 0.18);
  --shadow-3d-hover: 0 30px 70px -12px rgba(7, 27, 34, 0.4), 0 15px 30px -5px rgba(36, 192, 202, 0.35);
  --shadow-glow-teal: 0 0 35px rgba(36, 192, 202, 0.35);
  --shadow-glow-blue: 0 0 35px rgba(39, 132, 181, 0.35);
  
  /* Layout */
  --container-max: 1240px;
  --header-height: 80px;
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   2. Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--white);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--navy);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

/* --------------------------------------------------------------------------
   3. Layout Utilities
   -------------------------------------------------------------------------- */
.container {
  width: min(var(--container-max), calc(100% - 48px));
  margin-inline: auto;
}

.section {
  padding-block: 100px;
  position: relative;
  overflow: hidden;
}

.section-head {
  max-width: 720px;
  margin-bottom: 54px;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--teal);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--teal-glow));
  border-radius: 2px;
}

.eyebrow-glow {
  color: #5CE6DE;
}

.eyebrow-glow::before {
  background: linear-gradient(90deg, #5CE6DE, #2784B5);
}

.section-title {
  font-size: clamp(2.1rem, 3.8vw, 2.9rem);
  letter-spacing: -0.03em;
  color: var(--navy);
  margin-bottom: 16px;
}

.section-title.light {
  color: var(--white);
}

.section-lead {
  font-size: 1.1rem;
  color: var(--ink-secondary);
  line-height: 1.65;
}

.section-lead.light {
  color: #BCD4D9;
}

/* --------------------------------------------------------------------------
   4. Buttons & 3D Interactive UI
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.96rem;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  z-index: 1;
}

.btn:focus-visible {
  outline: 2px solid var(--teal-glow);
  outline-offset: 3px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--teal) 0%, #115F64 100%);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(22, 125, 130, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1A8E94 0%, var(--teal) 100%);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(22, 125, 130, 0.45), 0 0 20px rgba(36, 192, 202, 0.4);
  color: var(--white);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--white);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: var(--white);
  color: var(--navy);
  border-color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-secondary-dark {
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--navy);
  box-shadow: var(--shadow-sm);
}

.btn-secondary-dark:hover {
  background: var(--bg-light);
  border-color: var(--teal);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-whatsapp-3d {
  background: linear-gradient(135deg, #25D366 0%, #1DA851 100%);
  color: var(--white);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-whatsapp-3d:hover {
  background: linear-gradient(135deg, #28E06D 0%, #20BF5C 100%);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.45);
  color: var(--white);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-sm);
}

.btn-sm {
  padding: 10px 18px;
  font-size: 0.88rem;
  border-radius: var(--radius-xs);
}

.btn-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.btn:hover .btn-icon {
  transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   5. Topbar
   -------------------------------------------------------------------------- */
.topbar {
  background-color: var(--navy-dark);
  color: #B5D2D8;
  font-size: 0.82rem;
  padding-block: 9px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  z-index: 101;
}

.topbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.topbar-tagline {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-tagline .pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #3CD070;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px #3CD070;
}

.topbar-contact {
  display: flex;
  align-items: center;
  gap: 24px;
}

.topbar-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #C8E3E7;
  text-decoration: none;
}

.topbar-link:hover {
  color: var(--white);
}

.topbar-link svg {
  width: 14px;
  height: 14px;
  stroke: var(--teal-light);
}

/* --------------------------------------------------------------------------
   6. Main Navigation Header
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.header.scrolled {
  box-shadow: 0 8px 28px rgba(7, 27, 34, 0.09);
  background-color: rgba(255, 255, 255, 0.98);
}

.header-container {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Brand Logo */
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand-logo-img {
  height: 48px;
  width: 48px;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(13, 53, 64, 0.12);
  background: #FFFFFF;
  border: 1px solid var(--border);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
}

.brand-title .brand-dry {
  color: var(--blue-logo);
}

.brand-title .brand-guard {
  color: var(--navy);
}

.brand-sub {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  margin-top: 3px;
}

/* Nav Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--ink-secondary);
  position: relative;
  padding-block: 6px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--teal);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--blue-logo));
  transition: width 0.25s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Mobile Hamburger Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  padding: 9px 12px;
  cursor: pointer;
  color: var(--navy);
}

.mobile-toggle:focus-visible {
  outline: 2px solid var(--teal);
}

.mobile-toggle svg {
  width: 24px;
  height: 24px;
}

/* --------------------------------------------------------------------------
   7. 3D Hero Section with Background Image
   -------------------------------------------------------------------------- */
.hero-3d {
  position: relative;
  min-height: 820px;
  display: flex;
  align-items: center;
  color: var(--white);
  padding-block: 80px 100px;
  overflow: hidden;
  background-color: var(--navy-dark);
}

.hero-bg-media {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-bg-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.05);
  animation: heroZoom 24s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  0% { transform: scale(1.02); }
  100% { transform: scale(1.10); }
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, 
    rgba(5, 20, 25, 0.94) 0%, 
    rgba(7, 30, 38, 0.88) 45%, 
    rgba(13, 53, 64, 0.78) 100%
  );
  z-index: 2;
}

.hero-3d-grid-lines {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(36, 192, 202, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 192, 202, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  perspective: 600px;
  transform: rotateX(55deg) translateZ(-60px);
  transform-origin: bottom center;
  pointer-events: none;
  z-index: 3;
}

.hero-glow-orb {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(36, 192, 202, 0.22) 0%, transparent 70%);
  filter: blur(50px);
  pointer-events: none;
  z-index: 3;
  animation: floatOrb 8s ease-in-out infinite alternate;
}

.hero-glow-orb-1 {
  top: -100px;
  right: 5%;
}

.hero-glow-orb-2 {
  bottom: -150px;
  left: 10%;
  background: radial-gradient(circle, rgba(39, 132, 181, 0.25) 0%, transparent 70%);
}

@keyframes floatOrb {
  0% { transform: translate(0, 0); }
  100% { transform: translate(25px, 20px); }
}

.hero-container {
  position: relative;
  z-index: 10;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 60px;
}

.hero-content {
  max-width: 620px;
}

.hero-badge-3d {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-full);
  font-size: 0.84rem;
  font-weight: 700;
  color: #7FE2DC;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  margin-bottom: 24px;
}

.hero-badge-3d svg {
  width: 18px;
  height: 18px;
  color: var(--teal-glow);
}

.hero-title {
  font-size: clamp(2.5rem, 4.6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: var(--white);
  margin-bottom: 24px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #5EE0D8 0%, #3098CD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  filter: drop-shadow(0 2px 10px rgba(94, 224, 216, 0.3));
}

.hero-lead {
  font-size: 1.15rem;
  color: #C6DDE2;
  line-height: 1.7;
  margin-bottom: 36px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-trust-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.94rem;
  color: #DBE8EB;
}

.hero-trust-item .check-pill {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(36, 192, 202, 0.2);
  border: 1px solid var(--teal-glow);
  color: #5EE0D8;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 800;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   8. 3D Tilt Showcase (Hero Right Visual)
   -------------------------------------------------------------------------- */
.hero-3d-stage {
  perspective: 1200px;
  position: relative;
}

.card-3d-wrapper {
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.hero-main-3d-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5), 0 0 40px rgba(36, 192, 202, 0.25);
  border: 2px solid rgba(255, 255, 255, 0.18);
  background: var(--navy-dark);
}

.hero-3d-img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
}

.hero-3d-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 27, 34, 0.1) 0%, rgba(7, 27, 34, 0.85) 100%);
  pointer-events: none;
}

.hero-3d-card-caption {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  z-index: 5;
}

.caption-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #5EE0D8;
  margin-bottom: 4px;
}

.caption-title {
  font-size: 1.25rem;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 4px;
}

.caption-sub {
  font-size: 0.84rem;
  color: #BFD8DC;
}

.badge-3d-parallax {
  position: absolute;
  background: rgba(14, 48, 58, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(36, 192, 202, 0.2);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 14px;
  transform: translateZ(40px);
}

.badge-pos-top-right {
  top: 20px;
  right: -24px;
  animation: floatSlow 5s ease-in-out infinite alternate;
}

.badge-pos-bottom-left {
  bottom: 24px;
  left: -28px;
  animation: floatSlow 6s ease-in-out infinite alternate -3s;
}

@keyframes floatSlow {
  0% { transform: translateY(0) translateZ(40px); }
  100% { transform: translateY(-10px) translateZ(55px); }
}

.badge-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--teal) 0%, var(--blue-logo) 100%);
  display: grid;
  place-items: center;
  color: var(--white);
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

.badge-icon-box svg {
  width: 22px;
  height: 22px;
}

.badge-content strong {
  display: block;
  font-size: 0.94rem;
  color: var(--white);
  font-weight: 700;
}

.badge-content span {
  font-size: 0.78rem;
  color: #A9C9CF;
}

/* --------------------------------------------------------------------------
   9. Trust & Capabilities Bar (3D Floating Glass)
   -------------------------------------------------------------------------- */
.trust-bar {
  background: rgba(14, 48, 58, 0.90);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  z-index: 15;
  margin-top: -30px;
  padding-block: 28px;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 0 30px rgba(36, 192, 202, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.trust-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.trust-number {
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #5EE0D8;
  background-color: rgba(36, 192, 202, 0.2);
  border: 1px solid rgba(36, 192, 202, 0.4);
  padding: 5px 9px;
  border-radius: var(--radius-xs);
  flex-shrink: 0;
}

.trust-info h3 {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}

.trust-info p {
  font-size: 0.82rem;
  color: #BCD4D9;
  line-height: 1.45;
}

/* --------------------------------------------------------------------------
   10. Products Section WITH VIVID 3D CONTAINER YARD BACKGROUND
   -------------------------------------------------------------------------- */
.section-products-3d {
  background: linear-gradient(180deg, rgba(7, 27, 34, 0.78) 0%, rgba(13, 53, 64, 0.84) 100%),
              url('../assets/images/bg-products-stacks.jpg') center/cover no-repeat fixed;
  position: relative;
  color: var(--white);
  padding-block: 100px;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}

.product-card-3d {
  background: rgba(14, 48, 58, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s ease, border-color 0.4s ease;
  position: relative;
}

.product-card-3d:hover {
  transform: translateY(-8px) scale(1.015);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45), 0 0 35px rgba(36, 192, 202, 0.3);
  border-color: var(--teal-glow);
}

.product-media {
  position: relative;
  height: 250px;
  background-color: #071B22;
  overflow: hidden;
  display: grid;
  place-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.product-card-3d:hover .product-media img {
  transform: scale(1.06);
}

.product-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(7, 27, 34, 0.88);
  color: #5EE0D8;
  backdrop-filter: blur(8px);
  padding: 5px 12px;
  border-radius: var(--radius-xs);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid rgba(36, 192, 202, 0.4);
}

.product-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-body h3 {
  font-size: 1.38rem;
  color: var(--white);
  margin-bottom: 12px;
}

.product-body p {
  font-size: 0.94rem;
  color: #BCD4D9;
  line-height: 1.6;
  margin-bottom: 20px;
}

.product-features {
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.product-feature-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: #E2EFF1;
}

.product-feature-item svg {
  width: 16px;
  height: 16px;
  color: #5EE0D8;
  flex-shrink: 0;
}

.product-actions {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.link-enquire {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #5EE0D8;
  font-weight: 700;
  font-size: 0.92rem;
}

.link-enquire:hover {
  color: #7FE2DC;
  gap: 12px;
}

.transparency-box {
  background: rgba(14, 48, 58, 0.88);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-left: 4px solid var(--teal-glow);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 22px 28px;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.transparency-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(36, 192, 202, 0.2);
  color: #5EE0D8;
  border: 1px solid rgba(36, 192, 202, 0.35);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-weight: 800;
  font-size: 1rem;
}

.transparency-content h4 {
  font-size: 1rem;
  color: #5EE0D8;
  margin-bottom: 4px;
}

.transparency-content p {
  font-size: 0.88rem;
  color: #BCD4D9;
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   11. 3D Desiccant Estimator Console
   -------------------------------------------------------------------------- */
.calculator-box-3d {
  background: linear-gradient(135deg, rgba(10, 38, 46, 0.96) 0%, rgba(7, 28, 34, 0.98) 100%);
  border: 1px solid rgba(36, 192, 202, 0.35);
  border-radius: var(--radius-xl);
  padding: 42px;
  margin-top: 54px;
  color: var(--white);
  box-shadow: 0 25px 60px rgba(7, 27, 34, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  position: relative;
  overflow: hidden;
}

.calculator-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 32px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.calculator-header h3 {
  font-size: 1.55rem;
  color: var(--white);
  margin-bottom: 6px;
}

.calculator-header p {
  color: #A9C9CF;
  font-size: 0.94rem;
}

.calc-badge {
  background: rgba(36, 192, 202, 0.18);
  border: 1px solid var(--teal-glow);
  color: #5EE0D8;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: var(--radius-full);
}

.calc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr) 1.25fr;
  gap: 24px;
  align-items: center;
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.calc-field label {
  font-size: 0.85rem;
  font-weight: 700;
  color: #BCD4D9;
}

.calc-field select {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-xs);
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--white);
  font-size: 0.93rem;
  cursor: pointer;
  transition: var(--transition);
}

.calc-field select option {
  background-color: var(--navy-dark);
  color: var(--white);
}

.calc-field select:focus {
  border-color: var(--teal-glow);
  outline: none;
  box-shadow: 0 0 0 3px rgba(36, 192, 202, 0.25);
}

.calc-result-panel-3d {
  background: linear-gradient(135deg, rgba(22, 125, 130, 0.35) 0%, rgba(39, 132, 181, 0.3) 100%);
  border: 1px solid rgba(36, 192, 202, 0.45);
  color: var(--white);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.calc-result-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.calc-result-top span {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #A3D4D9;
}

.calc-result-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: #5EE0D8;
  line-height: 1;
  text-shadow: 0 0 15px rgba(94, 224, 216, 0.5);
}

.calc-result-detail {
  font-size: 0.82rem;
  color: #D3E7EB;
  line-height: 1.4;
}

.calc-apply-btn {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-light) 100%);
  color: var(--white);
  border: none;
  border-radius: var(--radius-xs);
  padding: 11px 16px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

.calc-apply-btn:hover {
  background: linear-gradient(135deg, #1DA8AF 0%, var(--teal) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(36, 192, 202, 0.4);
}

/* --------------------------------------------------------------------------
   12. Why DryGuard Section WITH CARGO WAREHOUSE BACKGROUND
   -------------------------------------------------------------------------- */
.section-why-3d {
  background: linear-gradient(135deg, rgba(7, 27, 34, 0.78) 0%, rgba(13, 53, 64, 0.82) 100%),
              url('../assets/images/cargo-warehouse.jpg') center/cover no-repeat fixed;
  color: var(--white);
  padding-block: 100px;
  position: relative;
}

.why-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 60px;
  align-items: center;
}

.why-left h2 {
  font-size: clamp(2.1rem, 3.6vw, 2.7rem);
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--white);
}

.why-left p {
  color: #BCD4D9;
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

.why-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.why-card-3d {
  background: rgba(14, 48, 58, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
}

.why-card-3d:hover {
  background: rgba(14, 48, 58, 0.95);
  border-color: var(--teal-glow);
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), 0 0 20px rgba(36, 192, 202, 0.25);
}

.why-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-glow) 100%);
  display: grid;
  place-items: center;
  color: var(--white);
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.why-icon svg {
  width: 22px;
  height: 22px;
}

.why-card-3d h3 {
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 8px;
}

.why-card-3d p {
  font-size: 0.88rem;
  color: #BCD4D9;
  line-height: 1.5;
  margin: 0;
}

.tech-compare-wrapper {
  margin-top: 60px;
  background: rgba(14, 48, 58, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 32px;
  overflow-x: auto;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.tech-compare-title {
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: 22px;
  text-align: center;
}

.tech-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 620px;
}

.tech-table th,
.tech-table td {
  padding: 15px 18px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tech-table th {
  color: #92C6CC;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.78rem;
}

.tech-table td {
  color: #DBEAEC;
}

.tech-table tr.highlight-row {
  background: rgba(22, 125, 130, 0.35);
}

.tech-table tr.highlight-row td {
  color: var(--white);
  font-weight: 600;
}

.badge-tag-winner {
  background: linear-gradient(90deg, var(--teal), var(--teal-light));
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  display: inline-block;
  box-shadow: 0 2px 8px rgba(36, 192, 202, 0.4);
}

/* --------------------------------------------------------------------------
   13. Applications Section WITH VIVID OCEAN CARGO SHIP 3D BACKGROUND
   -------------------------------------------------------------------------- */
.section-apps-3d {
  background: linear-gradient(180deg, rgba(5, 20, 25, 0.76) 0%, rgba(13, 53, 64, 0.80) 100%),
              url('../assets/images/bg-ocean-ship.jpg') center/cover no-repeat fixed;
  color: var(--white);
  padding-block: 100px;
  position: relative;
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 34px;
}

.app-card-3d {
  background: rgba(14, 48, 58, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.app-card-3d:hover {
  transform: translateY(-6px);
  background: rgba(14, 48, 58, 0.95);
  border-color: var(--teal-glow);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4), 0 0 25px rgba(36, 192, 202, 0.3);
}

.app-num {
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: #5EE0D8;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.app-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(36, 192, 202, 0.2);
  border: 1px solid rgba(36, 192, 202, 0.4);
  color: #5EE0D8;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}

.app-icon svg {
  width: 24px;
  height: 24px;
}

.app-card-3d h3 {
  font-size: 1.18rem;
  color: var(--white);
  margin-bottom: 10px;
}

.app-card-3d p {
  font-size: 0.88rem;
  color: #BCD4D9;
  line-height: 1.55;
  margin-bottom: 14px;
}

.app-risk-tag {
  margin-top: auto;
  font-size: 0.76rem;
  font-weight: 700;
  color: #5EE0D8;
  background-color: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(36, 192, 202, 0.3);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  display: inline-block;
}

/* --------------------------------------------------------------------------
   14. About DryGuard Section WITH VIVID GLOBAL PORT 3D BACKGROUND
   -------------------------------------------------------------------------- */
.section-about-3d {
  background: linear-gradient(180deg, rgba(7, 27, 34, 0.80) 0%, rgba(13, 53, 64, 0.84) 100%),
              url('../assets/images/container-port.jpg') center/cover no-repeat fixed;
  padding-block: 100px;
  color: var(--white);
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-content h2 {
  font-size: clamp(2.1rem, 3.6vw, 2.7rem);
  margin-bottom: 20px;
  color: var(--white);
}

.about-content p {
  font-size: 1.02rem;
  color: #BCD4D9;
  line-height: 1.7;
  margin-bottom: 20px;
}

.about-pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-block: 28px;
}

.about-pillar {
  border-left: 3px solid var(--teal-glow);
  padding-left: 14px;
  background: rgba(14, 48, 58, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-left-width: 3px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding-block: 10px;
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
}

.about-pillar strong {
  display: block;
  font-size: 0.98rem;
  color: #5EE0D8;
  margin-bottom: 4px;
}

.about-pillar span {
  font-size: 0.84rem;
  color: #BCD4D9;
  line-height: 1.45;
}

.about-visual {
  position: relative;
}

.about-image-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5), 0 0 30px rgba(36, 192, 202, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background-color: var(--navy-dark);
}

.about-image-card img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.about-overlay-card {
  position: absolute;
  bottom: -24px;
  right: -24px;
  background-color: rgba(14, 48, 58, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  max-width: 290px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.about-overlay-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: var(--radius-xs);
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.about-overlay-text strong {
  display: block;
  font-size: 0.92rem;
  color: var(--white);
}

.about-overlay-text span {
  font-size: 0.78rem;
  color: #BCD4D9;
}

/* --------------------------------------------------------------------------
   15. Contact / Quotation Section WITH TWILIGHT TERMINAL 3D BACKGROUND
   -------------------------------------------------------------------------- */
.section-contact-3d {
  background: linear-gradient(135deg, rgba(5, 20, 25, 0.76) 0%, rgba(7, 27, 34, 0.82) 100%),
              url('../assets/images/bg-contact-terminal.jpg') center/cover no-repeat fixed;
  color: var(--white);
  padding-block: 100px;
  position: relative;
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 50px;
  align-items: flex-start;
}

.contact-info-col h2 {
  font-size: clamp(2rem, 3.4vw, 2.6rem);
  color: var(--white);
  margin-bottom: 16px;
}

.contact-info-col > p {
  font-size: 1.05rem;
  color: #BCD4D9;
  line-height: 1.6;
  margin-bottom: 32px;
}

.contact-cards-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 28px;
}

.contact-card-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: rgba(14, 48, 58, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

.contact-card-item:hover {
  border-color: var(--teal-glow);
  background: rgba(14, 48, 58, 0.95);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(36, 192, 202, 0.2);
}

.contact-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(36, 192, 202, 0.2);
  color: #5EE0D8;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  border: 1px solid rgba(36, 192, 202, 0.35);
}

.contact-card-icon svg {
  width: 22px;
  height: 22px;
}

.contact-card-details strong {
  display: block;
  font-size: 0.88rem;
  color: var(--white);
  margin-bottom: 3px;
}

.contact-card-details a {
  color: #5EE0D8;
  font-size: 0.95rem;
  font-weight: 600;
}

.contact-card-details a:hover {
  color: #7FE2DC;
  text-decoration: underline;
}

.contact-card-details span {
  display: block;
  font-size: 0.88rem;
  color: #BCD4D9;
  line-height: 1.45;
}

/* The ONE In-Page Dedicated WhatsApp Card */
.inpage-whatsapp-card {
  background: linear-gradient(135deg, rgba(9, 44, 32, 0.92) 0%, rgba(6, 31, 22, 0.95) 100%);
  border: 1px solid rgba(37, 211, 102, 0.45);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--white);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.inpage-wa-text strong {
  display: block;
  font-size: 1.05rem;
  color: #4FE28C;
  margin-bottom: 4px;
}

.inpage-wa-text p {
  font-size: 0.85rem;
  color: #BDECD0;
  margin: 0;
}

/* 3D Frosted Quotation Form Card */
.quote-form-card-3d {
  background: rgba(14, 48, 58, 0.92);
  border: 1px solid rgba(36, 192, 202, 0.4);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: var(--radius-xl);
  padding: 40px 44px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5), 0 0 35px rgba(36, 192, 202, 0.2);
  color: var(--white);
}

.quote-form-card-3d h3 {
  font-size: 1.55rem;
  color: var(--white);
  margin-bottom: 8px;
}

.quote-form-card-3d .form-subtitle {
  font-size: 0.92rem;
  color: #A9C9CF;
  margin-bottom: 28px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.86rem;
  font-weight: 700;
  color: #BCD4D9;
}

.form-group label .required {
  color: #5EE0D8;
  margin-left: 2px;
}

.form-control-3d {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-xs);
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--white);
  font-size: 0.93rem;
  transition: var(--transition);
}

.form-control-3d::placeholder {
  color: #7E9FA7;
}

.form-control-3d option {
  background-color: var(--navy-dark);
  color: var(--white);
}

.form-control-3d:focus {
  outline: none;
  border-color: var(--teal-glow);
  box-shadow: 0 0 0 3px rgba(36, 192, 202, 0.25);
  background-color: rgba(255, 255, 255, 0.12);
}

.form-control-3d.is-invalid {
  border-color: var(--danger);
  background-color: rgba(217, 56, 58, 0.15);
}

.field-error {
  font-size: 0.78rem;
  color: #FF8587;
  display: none;
}

.form-control-3d.is-invalid + .field-error {
  display: block;
}

textarea.form-control-3d {
  min-height: 110px;
  resize: vertical;
}

.form-submit-row {
  margin-top: 24px;
}

.btn-submit-main {
  width: 100%;
  padding: 16px;
  font-size: 1.05rem;
}

.form-fineprint {
  font-size: 0.78rem;
  color: #A9C9CF;
  margin-top: 14px;
  line-height: 1.45;
  text-align: center;
}

.form-status-alert {
  margin-top: 16px;
  padding: 20px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  display: none;
  line-height: 1.55;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.form-status-alert.active {
  display: block;
}

.form-status-alert.success {
  background-color: rgba(14, 48, 58, 0.95);
  color: #E6F7F5;
  border: 1px solid rgba(36, 192, 202, 0.5);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4), 0 0 25px rgba(36, 192, 202, 0.2);
}

.form-status-alert.error {
  background-color: rgba(60, 20, 25, 0.95);
  color: #FEE2E2;
  border: 1px solid rgba(239, 68, 68, 0.5);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

/* 3D Interactive Quotation Receipt Console */
.receipt-card-3d {
  display: flex;
  flex-direction: column;
  gap: 16px;
  color: var(--white);
}

.receipt-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.receipt-badge {
  background: rgba(30, 142, 90, 0.35);
  border: 1px solid #34D399;
  color: #34D399;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.receipt-header h4 {
  font-size: 0.94rem;
  color: #5EE0D8;
  margin: 0;
}

.receipt-intro {
  font-size: 0.92rem;
  color: #E2EFF1;
  line-height: 1.5;
  margin: 0;
}

.receipt-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
  background: rgba(7, 27, 34, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 14px 18px;
  border-radius: var(--radius-xs);
  font-size: 0.86rem;
}

.receipt-summary-grid span {
  color: #92C6CC;
  display: inline-block;
  margin-right: 6px;
}

.receipt-summary-grid strong {
  color: var(--white);
}

.receipt-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 6px;
}

.btn-receipt-email {
  background: linear-gradient(135deg, var(--teal) 0%, var(--blue-logo) 100%);
  color: var(--white);
  padding: 13px 18px;
  border-radius: var(--radius-xs);
  font-weight: 700;
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

.btn-receipt-email:hover {
  background: linear-gradient(135deg, var(--teal-light) 0%, var(--blue-glow) 100%);
  transform: translateY(-2px);
  color: var(--white);
  box-shadow: 0 6px 20px rgba(36, 192, 202, 0.4);
}

.btn-receipt-wa {
  background: linear-gradient(135deg, #1E8E5A 0%, #157347 100%);
  color: var(--white);
  padding: 11px 18px;
  border-radius: var(--radius-xs);
  font-weight: 700;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  transition: var(--transition);
}

.btn-receipt-wa:hover {
  background: linear-gradient(135deg, #25D366 0%, #1E8E5A 100%);
  color: var(--white);
  transform: translateY(-2px);
}

.receipt-note {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 10px;
  color: #A9C9CF;
  font-size: 0.78rem;
  line-height: 1.45;
}

.receipt-note u {
  color: #5EE0D8;
}

/* --------------------------------------------------------------------------
   16. Footer WITH 3D AMBIENT PORT BACKGROUND
   -------------------------------------------------------------------------- */
.footer {
  background: linear-gradient(180deg, rgba(7, 27, 34, 0.96) 0%, rgba(4, 15, 19, 0.98) 100%),
              url('../assets/images/hero-port-night.jpg') center/cover no-repeat;
  color: #ADC8CD;
  padding-top: 68px;
  padding-bottom: 32px;
  border-top: 2px solid rgba(36, 192, 202, 0.35);
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo-img {
  height: 44px;
  width: 44px;
  object-fit: contain;
  background: white;
  border-radius: 8px;
}

.footer-brand-name {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--white);
}

.footer-tagline {
  font-size: 0.88rem;
  color: #92B4BA;
  line-height: 1.6;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 0.92rem;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #A2C1C7;
  font-size: 0.88rem;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--white);
  transform: translateX(3px);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.86rem;
  color: #A2C1C7;
  margin-bottom: 12px;
  line-height: 1.45;
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  color: var(--teal-light);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-contact-item a {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.82rem;
  color: #7A9CA2;
}

.footer-legal-links {
  display: flex;
  gap: 20px;
}

/* --------------------------------------------------------------------------
   17. ONE Floating 3D WhatsApp Button
   -------------------------------------------------------------------------- */
.floating-wa-btn-3d {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #25D366 0%, #17A94E 100%);
  color: var(--white);
  padding: 12px 20px;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.3s ease;
  animation: pulseWa 3.5s infinite;
}

.floating-wa-btn-3d:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 16px 36px rgba(37, 211, 102, 0.55);
  color: var(--white);
}

.floating-wa-btn-3d svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

@keyframes pulseWa {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.55); }
  70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* --------------------------------------------------------------------------
   18. Scroll Reveal Animations
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   19. Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .hero-3d-img {
    height: 400px;
  }
  
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .calc-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .calc-result-panel-3d {
    grid-column: 1 / -1;
  }
  
  .why-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .apps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  .section {
    padding-block: 70px;
  }

  .topbar {
    display: none;
  }

  .mobile-toggle {
    display: inline-flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--white);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px 24px 24px;
    box-shadow: var(--shadow-3d);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 99;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    padding-block: 12px;
    border-bottom: 1px solid var(--border-light);
    font-size: 1.05rem;
  }

  .header-actions {
    display: none;
  }

  .hero-3d {
    padding-block: 50px 60px;
    min-height: auto;
  }

  .hero-title {
    font-size: 2.3rem;
  }

  .hero-3d-img {
    height: 320px;
  }

  .badge-pos-top-right,
  .badge-pos-bottom-left {
    position: static;
    margin-top: 14px;
    animation: none;
    transform: none;
  }

  .trust-bar {
    margin-top: 20px;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .calc-grid {
    grid-template-columns: 1fr;
  }

  .why-features {
    grid-template-columns: 1fr;
  }

  .apps-grid {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .quote-form-card-3d {
    padding: 26px 22px;
  }

  .inpage-whatsapp-card {
    flex-direction: column;
    text-align: center;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .floating-wa-btn-3d {
    bottom: 20px;
    right: 20px;
    padding: 10px 16px;
    font-size: 0.85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }

  .card-3d-wrapper {
    transform: none !important;
  }
}