/* ==========================================================================
   UNIQUE WATER TANK CLEANER (UWTC) - PURE CSS STYLESHEET
   Clean, Responsive, High-Contrast Industrial & Commercial Theme
   ========================================================================== */

:root {
  --primary: #0066cc;
  --primary-dark: #004d99;
  --primary-deep: #003366;
  --primary-light: #e6f0fa;
  --accent: #f59e0b;
  --accent-light: #fef3c7;
  --danger-red: #dc2626;
  --danger-light: #fee2e2;
  --success: #10b981;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --bg-light: #f8fafc;
  --border: #e2e8f0;
  --white: #ffffff;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --radius: 12px;
  --radius-sm: 6px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Utilities */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.text-danger, .text-red { color: var(--danger-red); }
.text-muted { color: var(--text-muted); }
.bg-light { background-color: var(--bg-light); }
.bg-white { background-color: var(--white); }
.bg-primary { background-color: var(--primary); color: var(--white); }
.bg-dark { background-color: var(--primary-deep); color: var(--white); }
.bg-danger, .bg-red { background-color: var(--danger-red); color: var(--white); }
.badge-red {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background-color: var(--danger-red);
  color: #ffffff;
  font-weight: 800;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
}

.btn-white {
  background-color: var(--white);
  color: var(--primary);
  box-shadow: var(--shadow);
}

.btn-white:hover {
  background-color: #f1f5f9;
}

.btn-outline-white {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

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

.btn-outline-primary:hover {
  background-color: var(--primary-light);
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */

/* Top notification strip */
.top-strip {
  background-color: var(--primary-deep);
  color: #bae6fd;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-strip .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.top-strip a {
  color: #fff;
}

/* Main Brand Header */
.brand-header {
  padding: 16px 0;
  background-color: var(--white);
  border-bottom: 1px solid var(--border);
}

.brand-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-img {
  height: 72px;
  max-height: 82px;
  width: auto;
  max-width: 360px;
  object-fit: contain;
  display: block;
  transition: transform 0.2s ease;
}

.logo-img:hover {
  transform: scale(1.02);
}

@media (max-width: 768px) {
  .logo-img {
    height: 58px;
    max-width: 280px;
  }
}

.logo-badge {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 900;
  box-shadow: var(--shadow);
}

.logo-text h1 {
  font-size: 18px;
  font-weight: 900;
  color: var(--primary-deep);
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.logo-text p {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.call-box {
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: right;
}

.call-box .label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 700;
}

.call-box .phone-number {
  font-size: 16px;
  font-weight: 800;
  color: var(--primary);
}

/* Main Nav Ribbon */
.main-nav {
  background-color: var(--primary);
  color: var(--white);
}

.main-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li a {
  display: block;
  padding: 14px 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--white);
  transition: background-color 0.2s;
  letter-spacing: 0.2px;
}

.nav-links li a:hover,
.nav-links li a.active {
  background-color: var(--primary-dark);
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 24px;
  cursor: pointer;
  padding: 10px 0;
}

/* Live Canonical URL Bar */
.url-preview-bar {
  background-color: #0f172a;
  color: #94a3b8;
  font-size: 12px;
  padding: 8px 0;
  font-family: monospace;
}

.url-preview-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.url-preview-bar a {
  color: #38bdf8;
}

.copy-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #e2e8f0;
  padding: 4px 10px;
  font-size: 11px;
  border-radius: 4px;
  cursor: pointer;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ==========================================================================
   HERO SECTIONS
   ========================================================================== */

.hero {
  background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary-dark) 50%, var(--primary) 100%);
  color: var(--white);
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.hero-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.15);
  color: #bae6fd;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.hero h2 {
  font-size: 38px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.hero .subtitle {
  font-size: 18px;
  font-weight: 700;
  color: #fde047;
  margin-bottom: 14px;
}

.hero p {
  font-size: 15px;
  color: #e0f2fe;
  line-height: 1.6;
  margin-bottom: 24px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-image img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

/* Floating Multicolor Bubbles Animation in Hero Section */
.hero {
  position: relative;
  overflow: hidden;
}

.hero-bubbles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.hero > .container {
  position: relative;
  z-index: 2;
}

.hero-bubble {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  animation: floatRandomBubble ease-in-out infinite alternate;
  box-shadow: inset 0 0 4px rgba(255, 255, 255, 0.9), 0 0 10px rgba(255, 255, 255, 0.4);
}

.hero-bubble::after {
  content: '';
  position: absolute;
  top: 18%;
  left: 22%;
  width: 25%;
  height: 25%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  filter: blur(0.5px);
}

@keyframes floatRandomBubble {
  0% {
    transform: translate(0, 0) scale(0.92);
  }
  33% {
    transform: translate(calc(var(--dx, 25px) * 0.7), calc(var(--dy, -30px) * 1.2)) scale(1.15);
  }
  66% {
    transform: translate(calc(var(--dx, 25px) * -0.6), calc(var(--dy, -30px) * 0.5)) scale(0.92);
  }
  100% {
    transform: translate(calc(var(--dx, 25px) * -1), calc(var(--dy, -30px) * -0.9)) scale(1.06);
  }
}

/* Breadcrumb */
.breadcrumb {
  background-color: #f1f5f9;
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  font-size: 12px;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--primary);
  font-weight: 600;
}

/* ==========================================================================
   FEATURE STRIPS & BADGES
   ========================================================================== */

.feature-strip {
  background-color: var(--white);
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.feature-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.feature-card {
  text-align: center;
  padding: 16px;
  border-radius: var(--radius);
  background-color: var(--bg-light);
  border: 1px solid var(--border);
  transition: transform 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin: 0 auto 10px;
  font-weight: 800;
}

.feature-card h4 {
  font-size: 14px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 4px;
}

.feature-card p {
  font-size: 12px;
  color: var(--text-muted);
}

/* ==========================================================================
   SERVICES GRID (3x3)
   ========================================================================== */

.section {
  padding: 60px 0;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 40px;
}

.section-tag {
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  display: block;
}

.section-header h2 {
  font-size: 28px;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 10px;
}

.section-header p {
  font-size: 14px;
  color: var(--text-muted);
}

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

.service-card {
  background-color: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-card-img {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.service-num {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: var(--primary);
  color: var(--white);
  font-size: 11px;
  font-weight: 800;
  padding: 4px 8px;
  border-radius: 4px;
}

.service-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.service-card-body h3 {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1.3;
  color: var(--text-main);
}

.service-card-body p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.service-card-footer {
  border-top: 1px solid #f1f5f9;
  padding-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==========================================================================
   STATS COUNTER STRIP
   ========================================================================== */

.stats-banner {
  background-color: var(--primary);
  color: var(--white);
  padding: 40px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-item h3 {
  font-size: 34px;
  font-weight: 900;
  margin-bottom: 4px;
  color: #fff;
}

.stat-item p {
  font-size: 13px;
  color: #bfdbfe;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   WHY CHOOSE US / 2-COLUMN LAYOUT
   ========================================================================== */

.two-col-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.check-list {
  list-style: none;
  margin: 20px 0;
}

.check-list li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 14px;
  font-size: 14px;
  color: var(--text-main);
  line-height: 1.5;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  background-color: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 12px;
}

/* Mission Box */
.mission-box {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: var(--white);
  padding: 32px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-lg);
}

.mission-icon {
  width: 64px;
  height: 64px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: #fde047;
  flex-shrink: 0;
}

/* ==========================================================================
   TARGET MARKET / INDUSTRIES (10 Grid)
   ========================================================================== */

.industries-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.industry-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s;
}

.industry-card:hover {
  transform: translateY(-3px);
}

.industry-card-img {
  height: 140px;
  position: relative;
}

.industry-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.industry-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: 10px;
}

.industry-card-overlay h4 {
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
}

.industry-card-body {
  padding: 12px;
  font-size: 12px;
  color: var(--text-muted);
  flex: 1;
}

/* ==========================================================================
   CONTACT PAGE & FORMS
   ========================================================================== */

.contact-info-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-details h5 {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-details a, .contact-details p {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}

/* Form Styles */
.form-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-lg);
}

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

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.form-control:focus {
  border-color: var(--primary);
}

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

/* ==========================================================================
   FOOTER
   ========================================================================== */

footer {
  background-color: #0f172a;
  color: #cbd5e1;
  padding: 60px 0 20px;
  font-size: 13px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
  padding-bottom: 4px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: #94a3b8;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #38bdf8;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #64748b;
  flex-wrap: wrap;
  gap: 10px;
}

/* ==========================================================================
   MODAL POPUP (QUOTE FORM)
   ========================================================================== */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.7);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(3px);
}

.modal-overlay.active {
  display: flex;
}

.modal-container {
  background: var(--white);
  border-radius: var(--radius);
  width: 100%;
  max-width: 550px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  animation: modalFadeIn 0.2s ease-out;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  background: var(--primary-deep);
  color: var(--white);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 800;
}

.modal-close {
  background: none;
  border: none;
  color: var(--white);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
}

.modal-body {
  padding: 24px 20px;
}

/* Floating Actions */
.floating-actions {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 1000;
}

.float-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 20px;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: transform 0.2s;
  border: none;
}

.float-btn:hover {
  transform: scale(1.1);
}

.float-btn.phone { background-color: var(--primary); }
.float-btn.whatsapp { background-color: #25d366; }

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid, .two-col-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .industries-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .feature-grid-5 {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
  .feature-grid-4, .feature-grid-5, .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .industries-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    background-color: var(--primary-deep);
  }
  .nav-links.active {
    display: flex;
  }
  .mobile-nav-toggle {
    display: block;
  }
  .header-actions .call-box {
    display: none;
  }
  .hero h2 {
    font-size: 28px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}