/* ==========================================================================
   AQUASOURCE BEVERAGES AQUAPURE - MAIN STYLESHEET
   Pure, Certified & Refreshing Packaged Drinking Water
   Govt. of India MSME Registered (UDYAM-MH-29-0188174)
   ========================================================================== */

:root {
  --primary-950: #041221;
  --primary-900: #0a2540;
  --primary-800: #0f3964;
  --primary-700: #144f8b;
  --primary-600: #0284c7;
  --primary-500: #0ea5e9;
  --primary-400: #38bdf8;
  --primary-300: #7dd3fc;
  --primary-100: #e0f2fe;
  --primary-50:  #f0f9ff;

  --accent-teal: #0d9488;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #94a3b8;
  --text-white: #ffffff;

  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-gradient-subtle: linear-gradient(180deg, #f0f9ff 0%, #ffffff 100%);
  --bg-hero: radial-gradient(circle at 80% 20%, rgba(56, 189, 248, 0.15), transparent 40%),
             linear-gradient(135deg, #061a30 0%, #0a2e57 60%, #0c3e75 100%);

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.06);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.06);
  --shadow-glow: 0 0 25px rgba(14, 165, 233, 0.35);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background-color: var(--bg-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Top Gov Verification Bar */
.gov-topbar {
  background: #041221;
  color: #e2e8f0;
  font-size: 0.825rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.gov-topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.gov-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.gov-flag {
  font-size: 1rem;
}

.gov-id-highlight {
  background: rgba(14, 165, 233, 0.2);
  color: #7dd3fc;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
  letter-spacing: 0.5px;
  font-family: monospace;
  font-size: 0.85rem;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.gov-topbar-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.topbar-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #cbd5e1;
  font-size: 0.825rem;
  transition: color var(--transition-fast);
}

.topbar-link:hover {
  color: #38bdf8;
}

/* Main Header */
.main-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
  transition: all var(--transition-normal);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon-shield {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35);
  flex-shrink: 0;
}

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

.brand-primary-name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--primary-900);
  line-height: 1.15;
}

.brand-tagline-small {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--primary-600);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  padding: 0.35rem 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-600);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--primary-500);
  transition: width var(--transition-fast);
}

.nav-links a:hover::after {
  width: 100%;
}

.header-action-btns {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mobile-nav-toggle {
  display: none;
  background: transparent;
  padding: 0.5rem;
  color: var(--primary-900);
  cursor: pointer;
  border-radius: 8px;
}

/* Common Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.35rem;
  font-size: 0.925rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.45);
  background: linear-gradient(135deg, #0369a1 0%, #075985 100%);
}

.btn-whatsapp {
  background: #25D366;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #20bd5a;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(37, 211, 102, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--primary-600);
  border: 1.5px solid var(--primary-500);
}

.btn-outline:hover {
  background: var(--primary-50);
  color: var(--primary-700);
  border-color: var(--primary-600);
}

.btn-white {
  background: #ffffff;
  color: var(--primary-900);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  background: #f8fafc;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-sm {
  padding: 0.45rem 0.95rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.85rem 1.85rem;
  font-size: 1.05rem;
}

/* Hero Section */
.hero-section {
  position: relative;
  background: var(--bg-hero);
  color: #ffffff;
  padding: 5rem 0 4.5rem;
  overflow: hidden;
}

.hero-bg-bubbles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.35;
  background-image: 
    radial-gradient(circle 4px at 15% 30%, #38bdf8 100%, transparent),
    radial-gradient(circle 6px at 75% 40%, #7dd3fc 100%, transparent),
    radial-gradient(circle 8px at 45% 80%, #38bdf8 100%, transparent),
    radial-gradient(circle 5px at 90% 70%, #bae6fd 100%, transparent),
    radial-gradient(circle 10px at 25% 65%, #38bdf8 100%, transparent);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3.5rem;
  position: relative;
  z-index: 2;
}

.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: #bae6fd;
  backdrop-filter: blur(8px);
  margin-bottom: 1.25rem;
}

.hero-badge-pill .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #a7f3d0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 1.125rem;
  color: #cbd5e1;
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-highlights-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin-bottom: 2.25rem;
}

.hero-highlight-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: #f1f5f9;
}

.hero-highlight-item svg {
  color: #38bdf8;
  flex-shrink: 0;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Hero Right Visual Card */
.hero-visual-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-xl);
  padding: 2rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
  position: relative;
}

.hero-card-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
}

.hero-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
}

.hero-card-subtitle {
  font-size: 0.85rem;
  color: #94a3b8;
}

.hero-meta-grid {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}

.hero-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background: rgba(15, 23, 42, 0.35);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

.meta-label {
  color: #94a3b8;
  font-weight: 500;
}

.meta-value {
  color: #ffffff;
  font-weight: 600;
  text-align: right;
}

.meta-value.accent {
  color: #38bdf8;
  font-family: monospace;
}

.hero-card-footer {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.qr-mini-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.qr-mini-img {
  width: 52px;
  height: 52px;
  border-radius: 6px;
  background: white;
  padding: 3px;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.qr-mini-img:hover {
  transform: scale(1.05);
}

.qr-text-info {
  display: flex;
  flex-direction: column;
  font-size: 0.78rem;
  color: #cbd5e1;
}

/* Stats Ribbon */
.stats-ribbon {
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  padding: 1.75rem 0;
  box-shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.03);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-50);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-900);
  line-height: 1.1;
}

.stat-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Section Headings */
.section {
  padding: 5rem 0;
}

.section-alt {
  background: #f1f5f9;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-subtag {
  display: inline-block;
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary-600);
  background: var(--primary-50);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
  border: 1px solid var(--primary-100);
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--primary-950);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 0.85rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Certificate Verification Section */
.cert-showcase-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid #e2e8f0;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.cert-info-panel {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cert-official-seal {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.emblem-img {
  height: 52px;
  object-fit: contain;
}

.gov-title-stack {
  display: flex;
  flex-direction: column;
}

.gov-hi {
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--primary-900);
}

.gov-en {
  font-size: 0.775rem;
  color: var(--text-muted);
}

.cert-data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 0.5rem;
  margin-bottom: 1.5rem;
}

.cert-data-table tr {
  background: #f8fafc;
  border-radius: var(--radius-sm);
}

.cert-data-table td {
  padding: 0.7rem 1rem;
  font-size: 0.875rem;
}

.cert-data-table td:first-child {
  font-weight: 600;
  color: var(--text-muted);
  width: 45%;
  border-top-left-radius: var(--radius-sm);
  border-bottom-left-radius: var(--radius-sm);
}

.cert-data-table td:last-child {
  font-weight: 700;
  color: var(--primary-900);
  border-top-right-radius: var(--radius-sm);
  border-bottom-right-radius: var(--radius-sm);
}

.copyable-code {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  background: #e0f2fe;
  color: #0369a1;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-family: monospace;
}

.copyable-code:hover {
  background: #bae6fd;
}

.cert-preview-panel {
  background: #0f172a;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  color: white;
}

.cert-preview-frame {
  width: 100%;
  max-width: 380px;
  background: white;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 30px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  transition: transform var(--transition-normal);
}

.cert-preview-frame:hover {
  transform: translateY(-4px) scale(1.02);
}

.cert-preview-frame img {
  width: 100%;
  height: auto;
}

.cert-hover-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.7);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.cert-preview-frame:hover .cert-hover-overlay {
  opacity: 1;
}

.cert-badge-bottom {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Products Section */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.product-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid #e2e8f0;
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-300);
}

.product-card.popular {
  border: 2px solid var(--primary-500);
}

.popular-ribbon {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  z-index: 2;
}

.product-img-box {
  background: radial-gradient(circle at center, #f0f9ff 0%, #e0f2fe 100%);
  padding: 2.5rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
}

.product-svg-icon {
  width: 110px;
  height: 110px;
  filter: drop-shadow(0 10px 15px rgba(2, 132, 199, 0.25));
  transition: transform var(--transition-normal);
}

.product-card:hover .product-svg-icon {
  transform: scale(1.08);
}

.product-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

.product-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-900);
  margin-bottom: 0.65rem;
}

.product-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.product-specs {
  list-style: none;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.product-specs li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.825rem;
  color: var(--text-muted);
}

.product-specs svg {
  color: var(--accent-green);
  flex-shrink: 0;
}

.product-footer {
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-price-label {
  display: flex;
  flex-direction: column;
}

.price-unit {
  font-size: 0.75rem;
  color: var(--text-light);
}

.price-val {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary-900);
}

/* Purification Steps Section */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
  position: relative;
}

.step-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  border: 1px solid #e2e8f0;
  position: relative;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.step-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-400);
}

.step-number {
  position: absolute;
  top: -12px;
  right: 18px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-600);
  color: white;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(2, 132, 199, 0.4);
}

.step-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--primary-50);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.step-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-900);
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Calculator & Estimator Section */
.calculator-wrap {
  background: linear-gradient(135deg, #061a30 0%, #0a2e57 100%);
  border-radius: var(--radius-xl);
  padding: 3.5rem;
  color: white;
  box-shadow: var(--shadow-xl);
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}

.calc-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.calc-lead {
  font-size: 0.95rem;
  color: #94a3b8;
  margin-bottom: 2rem;
}

.calc-form-group {
  margin-bottom: 1.5rem;
}

.calc-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: #cbd5e1;
  margin-bottom: 0.5rem;
}

.calc-select, .calc-input {
  width: 100%;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  color: #ffffff;
  font-size: 0.95rem;
  transition: border-color var(--transition-fast);
}

.calc-select:focus, .calc-input:focus {
  border-color: #38bdf8;
  background: rgba(255, 255, 255, 0.12);
}

.calc-select option {
  background: #0f172a;
  color: #ffffff;
}

.calc-output-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(12px);
  text-align: center;
}

.calc-output-header {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: #94a3b8;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.calc-metric-highlight {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: #38bdf8;
  line-height: 1.1;
  margin-bottom: 0.25rem;
}

.calc-metric-sub {
  font-size: 0.875rem;
  color: #cbd5e1;
  margin-bottom: 1.75rem;
}

.calc-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.25rem;
  margin-bottom: 1.75rem;
  text-align: left;
}

.calc-breakdown-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
}

.calc-breakdown-label {
  color: #94a3b8;
}

.calc-breakdown-val {
  color: #ffffff;
  font-weight: 600;
}

/* Quality Assurance & Commercial Sectors */
.quality-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.quality-feature-box {
  background: #ffffff;
  padding: 2.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid #e2e8f0;
  transition: all var(--transition-normal);
}

.quality-feature-box:hover {
  transform: translateY(-4px);
  border-color: var(--primary-400);
  box-shadow: var(--shadow-md);
}

.quality-icon-wrap {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: var(--primary-50);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.quality-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-900);
  margin-bottom: 0.5rem;
}

.quality-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Institutional & B2B Cards */
.sectors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.sector-card {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.25rem;
  text-align: center;
  transition: all var(--transition-normal);
}

.sector-card:hover {
  border-color: var(--primary-500);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.sector-icon {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}

.sector-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--primary-900);
  margin-bottom: 0.25rem;
}

.sector-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Contact & Inquiry Section */
.contact-container-card {
  background: white;
  border-radius: var(--radius-xl);
  border: 1px solid #e2e8f0;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
}

.contact-info-panel {
  background: linear-gradient(135deg, #061a30 0%, #0c2b4e 100%);
  color: white;
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info-panel h3 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.contact-info-lead {
  font-size: 0.95rem;
  color: #94a3b8;
  margin-bottom: 2rem;
}

.contact-cards-stack {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-point-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-point-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #38bdf8;
  flex-shrink: 0;
}

.contact-point-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #94a3b8;
  font-weight: 600;
}

.contact-point-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: white;
  margin-top: 0.15rem;
}

.contact-point-value a:hover {
  color: #38bdf8;
}

.contact-bank-box {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-top: 2rem;
  font-size: 0.825rem;
}

.contact-bank-title {
  font-weight: 700;
  color: #38bdf8;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Contact Form Panel */
.contact-form-panel {
  padding: 3rem;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  font-size: 0.925rem;
  transition: all var(--transition-fast);
  background: #ffffff;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-submit-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

/* FAQ Accordion */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--primary-400);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: white;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--primary-900);
  cursor: pointer;
}

.faq-chevron {
  transition: transform var(--transition-fast);
  color: var(--primary-600);
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  background: #f8fafc;
  color: var(--text-muted);
  font-size: 0.925rem;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 1.25rem 1.5rem;
  border-top: 1px solid #e2e8f0;
}

/* Footer */
.main-footer {
  background: #041221;
  color: #94a3b8;
  padding: 4.5rem 0 2rem;
  font-size: 0.9rem;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  font-family: var(--font-heading);
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

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

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.825rem;
}

/* Modal Lightbox for Certificate */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal-overlay.open {
  display: flex;
  opacity: 1;
}

.modal-container {
  background: white;
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 900px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  position: relative;
}

.modal-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f8fafc;
}

.modal-title-stack {
  display: flex;
  flex-direction: column;
}

.modal-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--primary-900);
}

.modal-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.modal-close-btn {
  background: transparent;
  padding: 0.4rem;
  cursor: pointer;
  color: var(--text-muted);
  border-radius: 6px;
}

.modal-close-btn:hover {
  background: #e2e8f0;
  color: var(--text-main);
}

.modal-tabs {
  display: flex;
  background: #f1f5f9;
  border-bottom: 1px solid #e2e8f0;
  padding: 0 1.5rem;
  gap: 0.5rem;
}

.modal-tab-btn {
  padding: 0.75rem 1.25rem;
  background: transparent;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-muted);
  border-bottom: 3px solid transparent;
  cursor: pointer;
}

.modal-tab-btn.active {
  color: var(--primary-600);
  border-bottom-color: var(--primary-600);
  background: white;
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  text-align: center;
  background: #e2e8f0;
}

.modal-img-display {
  max-width: 100%;
  max-height: 65vh;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
  border-radius: 4px;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f8fafc;
}

/* Mobile Quick Action Sticky Bar */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.1);
  padding: 0.65rem 1rem;
  z-index: 1500;
  border-top: 1px solid #e2e8f0;
}

.mobile-sticky-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .cert-showcase-card {
    grid-template-columns: 1fr;
  }
  .calculator-grid {
    grid-template-columns: 1fr;
  }
  .contact-container-card {
    grid-template-columns: 1fr;
  }
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .quality-grid {
    grid-template-columns: 1fr;
  }
  .form-grid-2 {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: white;
    flex-direction: column;
    padding: 1.5rem;
    box-shadow: var(--shadow-xl);
    border-top: 1px solid #e2e8f0;
  }
  .nav-links.show {
    display: flex;
  }
  .mobile-nav-toggle {
    display: block;
  }
  .header-action-btns .btn-whatsapp {
    display: none;
  }
  .mobile-sticky-bar {
    display: block;
  }
  body {
    padding-bottom: 4rem;
  }
  .cert-info-panel, .contact-info-panel, .contact-form-panel {
    padding: 1.75rem;
  }
  .calculator-wrap {
    padding: 1.75rem;
  }
}