/* ============================================
   HH WATER DROPS COMPANY LTD - MAIN STYLESHEET
   Premium Borehole Drilling & Water Engineering
   ============================================ */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800;900&family=Poppins:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */
:root {
  --primary: #0056b3;
  --primary-dark: #003d82;
  --primary-light: #1a6fc4;
  --secondary: #00aaff;
  --secondary-light: #33bbff;
  --accent: #00c853;
  --accent-dark: #009624;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --dark-3: #334155;
  --mid: #64748b;
  --light-gray: #f1f5f9;
  --border: #e2e8f0;
  --white: #ffffff;
  --gold: #f59e0b;

  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Poppins', sans-serif;
  --font-ui: 'Inter', sans-serif;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.18);
  --shadow-xl: 0 40px 80px rgba(0,0,0,0.25);
  --shadow-blue: 0 8px 32px rgba(0,86,179,0.25);
  --shadow-blue-lg: 0 20px 60px rgba(0,86,179,0.35);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 40px;
  --radius-full: 9999px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  --container-max: 1280px;
  --nav-height: 80px;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

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

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

ul { list-style: none; }

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--dark);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.2rem; }
h5 { font-size: 1rem; }

p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--mid);
}

/* ============================================
   UTILITIES
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section-pad {
  padding: 100px 0;
}

.section-pad-sm {
  padding: 60px 0;
}

.text-center { text-align: center; }
.text-white { color: var(--white) !important; }
.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.gap-4 { gap: 32px; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--secondary);
  background: rgba(0,170,255,0.1);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  border: 1px solid rgba(0,170,255,0.2);
}

.section-tag i {
  font-size: 0.7rem;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
  line-height: 1.15;
}

.section-title span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--mid);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* Divider */
.divider {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: var(--radius-full);
  margin: 16px auto 0;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  box-shadow: var(--shadow-blue-lg);
  transform: translateY(-2px);
  color: var(--white);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
  color: var(--white);
  box-shadow: 0 8px 24px rgba(0,170,255,0.3);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(0,170,255,0.4);
  color: var(--white);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), #00e676);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(0,200,83,0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(0,200,83,0.4);
  color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.6);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--white);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline-primary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline-primary:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 18px 44px;
  font-size: 1rem;
}

.btn-sm {
  padding: 10px 24px;
  font-size: 0.875rem;
}

.btn i { font-size: 0.9em; }

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  max-width: 100vw;
  z-index: 1000;
  height: var(--nav-height);
  transition: var(--transition);
}

.navbar.transparent {
  background: transparent;
}

.navbar.scrolled {
  background: rgba(15,23,42,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.navbar.light-nav {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border);
}

.navbar.light-nav.scrolled {
  background: rgba(255,255,255,0.99);
  box-shadow: var(--shadow-md);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  gap: 12px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav-logo svg {
  height: 44px;
  width: auto;
}

.brand-logo-img {
  display: block;
  width: auto;
  object-fit: contain;
}

.nav-brand-logo {
  height: 50px;
  filter: drop-shadow(0 1px 3px rgba(0,0,0,0.25));
  transition: var(--transition);
}

.navbar.scrolled .nav-brand-logo {
  height: 44px;
}

.footer-brand-logo {
  height: 58px;
  margin-bottom: 16px;
}

@media (max-width: 768px) {
  .nav-brand-logo {
    height: 38px;
  }
  .footer-brand-logo {
    height: 46px;
  }
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
  letter-spacing: 0.01em;
}

.nav-link:hover,
.nav-link.active {
  color: var(--secondary);
  background: rgba(0,170,255,0.1);
}

.navbar.light-nav .nav-link {
  color: var(--dark-3);
}

.navbar.light-nav .nav-link:hover,
.navbar.light-nav .nav-link.active {
  color: var(--primary);
  background: rgba(0,86,179,0.08);
}

/* Dropdown */
.nav-item {
  position: relative;
}

.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 12px;
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.nav-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dark-3);
  transition: var(--transition);
}

.nav-dropdown a i {
  color: var(--primary);
  width: 18px;
  font-size: 0.85rem;
}

.nav-dropdown a:hover {
  background: var(--light-gray);
  color: var(--primary);
}

/* Nav CTA */
.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
}

.navbar.light-nav .nav-phone {
  color: var(--dark-3);
}

.nav-phone i {
  color: var(--secondary);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.1);
  border: none;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
  display: block;
}

.navbar.light-nav .nav-toggle span {
  background: var(--dark);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

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

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease;
}

.hero-slide.active { opacity: 1; }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(0,22,64,0.88) 0%,
    rgba(0,86,179,0.65) 50%,
    rgba(0,22,64,0.75) 100%
  );
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(0,170,255,0.6);
  border-radius: 50%;
  animation: float-particle linear infinite;
}

@keyframes float-particle {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 0.5; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: calc(var(--nav-height) + 40px) 0 80px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 60px;
  align-items: center;
}

.hero-text {
  color: var(--white);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,170,255,0.15);
  border: 1px solid rgba(0,170,255,0.3);
  backdrop-filter: blur(10px);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--secondary-light);
  margin-bottom: 24px;
  animation: fadeInDown 0.8s ease 0.2s both;
}

.hero-badge i { font-size: 0.75rem; }

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--secondary), #66d9ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.75;
  margin-bottom: 40px;
  max-width: 540px;
  animation: fadeInUp 0.8s ease 0.5s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 56px;
  animation: fadeInUp 0.8s ease 0.7s both;
}

.stat-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  background: rgba(255,255,255,0.14);
  transform: translateY(-4px);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--secondary), #66d9ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
  font-weight: 500;
  letter-spacing: 0.05em;
}

/* Hero Card */
.hero-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  animation: fadeInRight 0.8s ease 0.5s both;
}

.hero-card h3 {
  font-size: 1.4rem;
  color: var(--white);
  margin-bottom: 8px;
}

.hero-card p {
  color: rgba(255,255,255,0.65);
  font-size: 0.875rem;
  margin-bottom: 24px;
}

.hero-form .form-group {
  margin-bottom: 16px;
}

.hero-form input,
.hero-form select,
.hero-form textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
}

.hero-form input::placeholder,
.hero-form textarea::placeholder {
  color: rgba(255,255,255,0.45);
}

.hero-form input:focus,
.hero-form select:focus,
.hero-form textarea:focus {
  border-color: var(--secondary);
  background: rgba(255,255,255,0.15);
  box-shadow: 0 0 0 3px rgba(0,170,255,0.2);
}

.hero-form select option {
  background: var(--dark);
  color: var(--white);
}

/* Hero scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: bounce 2s ease infinite;
  z-index: 2;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--secondary), transparent);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* Slide indicators */
.hero-indicators {
  position: absolute;
  bottom: 80px;
  right: 32px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2;
}

.indicator-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.indicator-dot.active {
  background: var(--secondary);
  height: 28px;
  border-radius: 4px;
}

/* ============================================
   ABOUT SECTION (Homepage)
   ============================================ */
.about-section {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-images {
  position: relative;
}

.about-img-main {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.about-img-accent {
  position: absolute;
  bottom: -32px;
  right: -32px;
  width: 200px;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 6px solid var(--white);
  box-shadow: var(--shadow-lg);
}

.about-badge {
  position: absolute;
  top: 32px;
  right: -24px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  padding: 16px 24px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-blue-lg);
}

.about-badge .num {
  font-size: 2rem;
  font-weight: 900;
  font-family: var(--font-heading);
  line-height: 1;
}

.about-badge .label {
  font-size: 0.75rem;
  opacity: 0.85;
  font-weight: 500;
}

.about-text .section-tag { justify-content: flex-start; }
.about-text .section-title { text-align: left; }

.about-desc {
  margin-bottom: 24px;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 32px 0;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.highlight-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, rgba(0,86,179,0.1), rgba(0,170,255,0.1));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
  font-size: 1.1rem;
}

.highlight-content h4 {
  font-size: 0.9rem;
  color: var(--dark);
  margin-bottom: 2px;
}

.highlight-content p {
  font-size: 0.8rem;
  color: var(--mid);
  margin: 0;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services-section {
  background: var(--light-gray);
}

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

.service-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0,86,179,0.15);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, rgba(0,86,179,0.1), rgba(0,170,255,0.1));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
  color: var(--primary);
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  transform: scale(1.1) rotate(-5deg);
}

.service-card h3 {
  font-size: 1rem;
  color: var(--dark);
  margin-bottom: 10px;
  font-weight: 700;
}

.service-card p {
  font-size: 0.85rem;
  color: var(--mid);
  line-height: 1.65;
  margin-bottom: 16px;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
}

.service-link:hover {
  gap: 10px;
  color: var(--secondary);
}

/* ============================================
   WHY CHOOSE US
   ============================================ */
.why-section {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
  position: relative;
  overflow: hidden;
}

.why-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,86,179,0.2) 0%, transparent 70%);
  pointer-events: none;
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

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

.why-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: var(--transition);
}

.why-card:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(0,170,255,0.3);
  transform: translateY(-4px);
}

.why-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: 16px;
}

.why-card h4 {
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 8px;
  font-weight: 700;
}

.why-card p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.65;
  margin: 0;
}

.why-image-wrap {
  position: relative;
}

.why-img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.why-cert-badge {
  position: absolute;
  bottom: 32px;
  left: -24px;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 16px;
}

.cert-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--accent), #00e676);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--white);
  flex-shrink: 0;
}

.cert-text h5 {
  font-size: 0.95rem;
  color: var(--dark);
  margin-bottom: 2px;
}

.cert-text p {
  font-size: 0.8rem;
  color: var(--mid);
  margin: 0;
}

/* ============================================
   PROCESS TIMELINE
   ============================================ */
.process-section {
  background: var(--white);
}

.process-timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
  transform: translateX(-50%);
}

.process-item {
  display: grid;
  grid-template-columns: 1fr 80px 1fr;
  gap: 0;
  margin-bottom: 48px;
  position: relative;
}

.process-item:nth-child(odd) .process-content {
  grid-column: 1;
  grid-row: 1;
  text-align: right;
  padding-right: 40px;
}

.process-item:nth-child(odd) .process-step {
  grid-column: 2;
  grid-row: 1;
}

.process-item:nth-child(odd) .process-empty {
  grid-column: 3;
}

.process-item:nth-child(even) .process-empty {
  grid-column: 1;
}

.process-item:nth-child(even) .process-step {
  grid-column: 2;
}

.process-item:nth-child(even) .process-content {
  grid-column: 3;
  padding-left: 40px;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  position: relative;
}

.step-circle {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 800;
  font-size: 1.1rem;
  font-family: var(--font-heading);
  box-shadow: var(--shadow-blue);
  z-index: 1;
  flex-shrink: 0;
}

.process-content {
  padding-top: 8px;
}

.process-content h4 {
  font-size: 1.1rem;
  color: var(--dark);
  margin-bottom: 8px;
}

.process-content p {
  font-size: 0.875rem;
  color: var(--mid);
  line-height: 1.7;
  margin: 0;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects-section {
  background: var(--light-gray);
}

.projects-filter {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-body);
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--mid);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  border-color: transparent;
  box-shadow: var(--shadow-blue);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.project-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.project-img {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.project-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card:hover .project-img img {
  transform: scale(1.08);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0,22,64,0.85) 0%,
    rgba(0,86,179,0.2) 50%,
    transparent 100%
  );
  display: flex;
  align-items: flex-end;
  padding: 20px;
}

.project-tag {
  background: var(--secondary);
  color: var(--white);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.project-body {
  padding: 24px;
}

.project-body h3 {
  font-size: 1.1rem;
  color: var(--dark);
  margin-bottom: 8px;
}

.project-body p {
  font-size: 0.875rem;
  color: var(--mid);
  margin-bottom: 16px;
  line-height: 1.65;
}

.project-meta {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--mid);
}

.project-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}

.project-meta i {
  color: var(--primary);
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials-section {
  background: linear-gradient(135deg, #0056b3 0%, #003d82 100%);
  position: relative;
  overflow: hidden;
}

.testimonials-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 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' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='30'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.testimonials-slider {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.testimonial-slide {
  display: none;
}

.testimonial-slide.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

.testimonial-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  text-align: center;
}

.quote-icon {
  font-size: 3rem;
  color: rgba(255,255,255,0.2);
  margin-bottom: 24px;
  line-height: 1;
}

.testimonial-text {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.9);
  line-height: 1.85;
  margin-bottom: 32px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: center;
}

.author-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(255,255,255,0.3);
}

.author-info h5 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 2px;
}

.author-info p {
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
  margin: 0;
}

.stars {
  color: var(--gold);
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.testimonial-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}

.t-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.1);
  color: var(--white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.t-btn:hover {
  background: rgba(255,255,255,0.25);
}

.t-dots {
  display: flex;
  gap: 8px;
}

.t-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.t-dot.active {
  background: var(--white);
  width: 24px;
  border-radius: 4px;
}

/* ============================================
   CTA BANNER
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,170,255,0.15) 0%, transparent 70%);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: var(--white);
  margin-bottom: 12px;
}

.cta-text p {
  color: rgba(255,255,255,0.65);
  font-size: 1rem;
  margin: 0;
}

.cta-actions {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

/* Emergency banner */
.emergency-banner {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  padding: 14px 0;
  text-align: center;
}

.emergency-banner p {
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0;
}

.emergency-banner a {
  color: var(--gold);
  font-weight: 700;
}

/* ============================================
   GALLERY SECTION
   ============================================ */
.gallery-section {
  background: var(--white);
}

.gallery-grid {
  columns: 4;
  column-gap: 16px;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 16px;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  display: block;
  transition: transform 0.6s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,22,64,0.8), transparent);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item-overlay i {
  font-size: 2rem;
  color: var(--white);
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.95);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}

.lightbox.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox-content img {
  max-height: 85vh;
  border-radius: var(--radius-md);
}

.lightbox-close {
  position: fixed;
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  color: var(--white);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.2);
}

.lb-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  color: var(--white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.lb-prev { left: 24px; }
.lb-next { right: 24px; }

.lb-nav:hover { background: rgba(255,255,255,0.2); }

/* ============================================
   FAQ
   ============================================ */
.faq-section {
  background: var(--light-gray);
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px 80px;
  align-items: start;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.open {
  border-color: rgba(0,86,179,0.3);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  gap: 16px;
}

.faq-question h4 {
  font-size: 0.95rem;
  color: var(--dark);
  font-weight: 600;
  line-height: 1.4;
}

.faq-item.open .faq-question h4 {
  color: var(--primary);
}

.faq-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: var(--transition);
}

.faq-item.open .faq-icon {
  background: var(--primary);
  color: var(--white);
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding-bottom: 20px;
}

.faq-answer p {
  padding: 0 24px;
  font-size: 0.9rem;
  color: var(--mid);
  line-height: 1.75;
  margin: 0;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: start;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info-item h4 {
  font-size: 0.9rem;
  color: var(--dark);
  margin-bottom: 4px;
  font-weight: 700;
}

.contact-info-item p,
.contact-info-item a {
  font-size: 0.9rem;
  color: var(--mid);
  margin: 0;
}

.contact-info-item a:hover {
  color: var(--primary);
}

.contact-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.contact-form h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.contact-form p {
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 6px;
  font-family: var(--font-ui);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--dark);
  background: var(--white);
  outline: none;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,86,179,0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 400px;
  border: 1px solid var(--border);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.whatsapp-float {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
}

.whatsapp-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #25d366;
  color: var(--white);
  padding: 14px 24px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 8px 32px rgba(37,211,102,0.4);
  transition: var(--transition);
}

.whatsapp-btn:hover {
  background: #22c55e;
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(37,211,102,0.5);
  color: var(--white);
}

.whatsapp-btn i { font-size: 1.3rem; }

/* ============================================
   PAGE HERO (Inner pages)
   ============================================ */
.page-hero {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
  padding: calc(var(--nav-height) + 60px) 0 80px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,86,179,0.3) 0%, transparent 70%);
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.2;
}

.page-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 16px;
}

.breadcrumb a:hover { color: var(--secondary); }
.breadcrumb i { font-size: 0.65rem; }

.page-hero h1 {
  color: var(--white);
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin-bottom: 16px;
}

.page-hero p {
  color: rgba(255,255,255,0.7);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
}

.footer-main {
  padding: 80px 0 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.75;
  margin: 20px 0 24px;
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: 10px;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 0.95rem;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  transform: translateY(-3px);
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

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

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.footer-links a i {
  font-size: 0.7rem;
  color: var(--secondary);
}

.footer-links a:hover {
  color: var(--white);
  padding-left: 4px;
}

.footer-contact p {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 12px;
}

.footer-contact i {
  color: var(--secondary);
  margin-top: 3px;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
  margin: 0;
}

.footer-cert {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cert-badge {
  background: rgba(0,200,83,0.1);
  border: 1px solid rgba(0,200,83,0.3);
  color: var(--accent);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

/* ============================================
   GLASSMORPHISM CARDS
   ============================================ */
.glass-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  left: 32px;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-blue);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 998;
  border: none;
  font-size: 1rem;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-blue-lg);
}

/* ============================================
   ADDITIONAL SPECIFIC PAGES
   ============================================ */

/* Values Cards */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.value-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.value-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0,86,179,0.15);
}

.value-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 2rem;
  color: var(--white);
}

/* Team Cards */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.team-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  text-align: center;
  transition: var(--transition);
}

.team-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.team-img {
  height: 260px;
  overflow: hidden;
}

.team-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.team-card:hover .team-img img {
  transform: scale(1.05);
}

.team-info {
  padding: 20px;
}

.team-info h4 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.team-info .role {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
}

/* Company Profile Specific */
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.equipment-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: var(--transition);
}

.equipment-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0,86,179,0.2);
}

.equip-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(0,86,179,0.1), rgba(0,170,255,0.1));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.3rem;
  flex-shrink: 0;
}

.equip-text h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.equip-text p {
  font-size: 0.8rem;
  margin: 0;
}

/* Timeline */
.company-timeline {
  position: relative;
  padding: 20px 0;
}

.company-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  gap: 32px;
  align-items: center;
  margin-bottom: 40px;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-item:nth-child(odd) .timeline-content {
  text-align: right;
}

.timeline-year {
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--white);
  flex-shrink: 0;
  box-shadow: var(--shadow-blue);
  z-index: 1;
  position: relative;
}

.timeline-content {
  flex: 1;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.timeline-content h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.875rem;
  margin: 0;
}

/* Services Detailed Page */
.service-detail-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  margin-bottom: 48px;
}

.service-detail-img {
  height: 320px;
  overflow: hidden;
  position: relative;
}

.service-detail-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-detail-body {
  padding: 40px;
}

.service-features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 24px 0;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--dark-3);
}

.feature-item i {
  color: var(--accent);
  font-size: 0.85rem;
}

/* Notification */
.notification {
  position: fixed;
  top: 100px;
  right: 24px;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--accent);
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 340px;
  z-index: 9998;
  transform: translateX(400px);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.notification.show {
  transform: translateX(0);
}

.notification.error {
  border-color: #ef4444;
}

.notification i {
  font-size: 1.4rem;
}

.notification.success i { color: var(--accent); }
.notification.error i { color: #ef4444; }

.notification p {
  font-size: 0.875rem;
  color: var(--dark);
  margin: 0;
  line-height: 1.4;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1200px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .team-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  :root {
    --nav-height: 70px;
  }

  .nav-menu,
  .nav-phone {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
    flex-shrink: 0;
    margin-left: auto;
  }

  .nav-logo {
    flex-shrink: 1;
    min-width: 0;
  }

  .brand-logo-img.nav-brand-logo {
    max-width: 100%;
  }

  /* Mobile Nav */
  .nav-menu.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--dark);
    padding: 24px;
    gap: 4px;
    border-top: 1px solid rgba(255,255,255,0.08);
    max-height: calc(100vh - var(--nav-height));
    overflow-y: auto;
  }

  .nav-link {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    width: 100%;
    display: block;
  }

  .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-sm);
    padding: 8px;
    margin-top: 4px;
    display: none;
  }

  .nav-item.open .nav-dropdown {
    display: block;
  }

  .nav-dropdown a {
    color: rgba(255,255,255,0.75);
    padding: 10px 16px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-card {
    display: none;
  }

  .about-grid,
  .why-grid,
  .contact-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .about-img-accent,
  .about-badge {
    display: none;
  }

  .cta-inner {
    flex-direction: column;
    text-align: center;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-item {
    grid-template-columns: 1fr;
  }

  .process-timeline::before { display: none; }

  .process-item:nth-child(odd) .process-content,
  .process-item:nth-child(even) .process-content {
    grid-column: 1;
    text-align: left;
    padding: 0 0 0 20px;
  }

  .process-item:nth-child(odd) .process-step,
  .process-item:nth-child(even) .process-step {
    grid-column: 1;
    flex-direction: row;
    justify-content: flex-start;
  }

  .process-empty { display: none; }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .gallery-grid {
    columns: 3;
  }

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

  .company-timeline::before { display: none; }

  .timeline-item,
  .timeline-item:nth-child(odd) {
    flex-direction: column;
    text-align: left;
  }

  .timeline-item:nth-child(odd) .timeline-content {
    text-align: left;
  }
}

@media (max-width: 768px) {
  .section-pad { padding: 70px 0; }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.7rem; }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    columns: 2;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .cta-actions .btn {
    width: 100%;
    max-width: 280px;
  }

  .testimonial-card {
    padding: 32px 24px;
  }

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

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

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

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

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

  .whatsapp-float {
    bottom: 20px;
    right: 20px;
  }

  .whatsapp-btn span {
    display: none;
  }

  .whatsapp-btn {
    width: 56px;
    height: 56px;
    padding: 0;
    border-radius: 50%;
    justify-content: center;
  }

  .back-to-top {
    bottom: 20px;
    left: 20px;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .nav-inner {
    padding: 0 16px;
  }

  .hero-badge {
    font-size: 0.65rem;
    padding: 6px 14px;
    letter-spacing: 0.08em;
    white-space: normal;
    line-height: 1.4;
  }

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

  .hero-stats {
    grid-template-columns: 1fr 1fr;
  }

  .gallery-grid {
    columns: 1;
  }

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

  .projects-filter {
    gap: 6px;
  }

  .filter-btn {
    padding: 8px 16px;
    font-size: 0.8rem;
  }
}

/* ============================================
   PHASE 2: PREMIUM ADDITIONS
   ============================================ */

/* Animated underline for nav links */
.nav-link::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 3px;
  height: 2px;
  background: var(--secondary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.navbar.light-nav .nav-link::after {
  background: var(--primary);
}

/* Trust Strip */
.trust-strip {
  background: var(--light-2, #f4f8fb);
  padding: 28px 0;
  border-bottom: 1px solid var(--border, #e5eaf0);
}

.trust-strip-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.trust-strip-label {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--dark-3, #4a5568);
  white-space: nowrap;
}

.trust-strip-items {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  flex: 1;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--dark-2, #2d3748);
  opacity: 0.85;
}

.trust-item i {
  color: var(--secondary);
  font-size: 1rem;
}

@media (max-width: 768px) {
  .trust-strip-inner { flex-direction: column; align-items: flex-start; gap: 14px; }
  .trust-strip-items { gap: 10px 18px; }
  .trust-item { font-size: 0.78rem; }
}

/* Water Facts */
.water-facts-section {
  background: linear-gradient(135deg, var(--primary, #0056b3), var(--primary-dark, #003d82));
  padding: 56px 0;
}

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

.water-fact-card {
  text-align: center;
  color: #fff;
  padding: 8px 12px;
}

.water-fact-card i {
  font-size: 1.6rem;
  color: var(--secondary);
  margin-bottom: 10px;
}

.water-fact-number {
  font-family: var(--font-display, inherit);
  font-weight: 800;
  font-size: 2rem;
  margin-bottom: 8px;
}

.water-fact-card p {
  font-size: 0.85rem;
  line-height: 1.5;
  color: rgba(255,255,255,0.85);
  margin: 0;
}

@media (max-width: 900px) {
  .water-facts-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .water-facts-grid { grid-template-columns: 1fr; }
}

/* Coverage / Counties Served */
.coverage-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.coverage-counties {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
}

.county-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(0,86,179,0.07);
  border: 1px solid rgba(0,86,179,0.15);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--primary);
}

.county-pill i { color: var(--secondary); font-size: 0.75rem; }

.county-pill-more {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.county-pill-more i { color: #fff; }

.coverage-map-card {
  background: var(--light-2, #f4f8fb);
  border: 1px solid var(--border, #e5eaf0);
  border-radius: var(--radius-lg, 16px);
  padding: 40px 32px;
  text-align: center;
}

.coverage-map-icon {
  font-size: 3rem;
  color: var(--secondary);
  margin-bottom: 20px;
}

.coverage-stat-row {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 20px;
}

.coverage-stat-number {
  font-weight: 800;
  font-size: 2.2rem;
  color: var(--primary);
}

.coverage-stat-label {
  font-size: 0.8rem;
  color: var(--dark-3, #4a5568);
  font-weight: 600;
  margin-top: 4px;
}

.coverage-map-note {
  font-size: 0.85rem;
  color: var(--dark-3, #4a5568);
  margin: 0;
}

@media (max-width: 900px) {
  .coverage-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* Google Reviews Strip */
.google-reviews-strip {
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  padding: 24px 28px;
  background: var(--light-2, #f4f8fb);
  border: 1px solid var(--border, #e5eaf0);
  border-radius: var(--radius-lg, 16px);
}

.google-reviews-badge {
  display: flex;
  align-items: center;
  gap: 14px;
}

.google-reviews-badge > i {
  font-size: 1.8rem;
  color: #4285F4;
}

.google-stars {
  color: #fbbc04;
  font-size: 0.85rem;
  margin-bottom: 2px;
}

.google-reviews-badge span {
  font-size: 0.85rem;
  color: var(--dark-3, #4a5568);
  font-weight: 600;
}

@media (max-width: 600px) {
  .google-reviews-strip { flex-direction: column; align-items: flex-start; }
}

/* FAQ Preview */
.faq-preview-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-preview-item {
  border: 1px solid var(--border, #e5eaf0);
  border-radius: var(--radius-md, 12px);
  overflow: hidden;
  background: #fff;
}

.faq-preview-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--dark-2, #2d3748);
}

.faq-preview-q i {
  color: var(--secondary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-preview-item.open .faq-preview-q i {
  transform: rotate(180deg);
}

.faq-preview-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  padding: 0 22px;
}

.faq-preview-item.open .faq-preview-a {
  max-height: 300px;
  padding: 0 22px 20px;
}

.faq-preview-a p {
  margin: 0;
  color: var(--dark-3, #4a5568);
  font-size: 0.9rem;
  line-height: 1.7;
}