/* CSS Variables for Color Scheme */
 :root {
 --color-white: #FFFFFF;
 --color-navy: #1a3a5c;
 --color-light-blue: #e8f4fd;
 --color-accent: #2196F3;
 --color-text: #333333;
 --color-text-muted: #666666;
 --transition: all 0.3s ease;
 }

 /* Basic Reset and Typography */
 * {
 margin: 0;
 padding: 0;
 box-sizing: border-box;
 }

 html {
 scroll-behavior: smooth; /* Smooth scroll navigation */
 font-family: 'Inter', sans-serif;
 color: var(--color-text);
 line-height: 1.6;
 }

 body {
 background-color: var(--color-white);
 padding-top: 0;
 }

 h1, h2, h3, h4, h5, h6 {
 color: var(--color-navy);
 margin-bottom: 1rem;
 font-weight: 600;
 }

 p {
 margin-bottom: 1rem;
 color: var(--color-text-muted);
 }

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

 a:hover {
 color: var(--color-navy);
 }

 ul {
 list-style-type: none;
 }

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

 section {
 padding: 80px 0;
 }

 section:nth-child(even) {
 background-color: var(--color-light-blue);
 }

 /* Buttons */
 .btn {
 display: inline-block;
 padding: 12px 24px;
 background-color: var(--color-accent);
 color: var(--color-white);
 border: none;
 border-radius: 4px;
 font-weight: 500;
 cursor: pointer;
 transition: var(--transition);
 text-align: center;
 }

 .btn:hover {
 background-color: var(--color-navy);
 color: var(--color-white);
 transform: translateY(-2px);
 box-shadow: 0 4px 8px rgba(0,0,0,0.1);
 }

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

 .btn-outline:hover {
 background-color: var(--color-accent);
 color: var(--color-white);
 transform: translateY(-2px);
 box-shadow: 0 4px 8px rgba(0,0,0,0.1);
 }

 /* 1. Top Navigation Bar */
 header {
 position: absolute;
 top: 0;
 left: 0;
 width: 100%;
 background-color: transparent;
 z-index: 1000;
 padding: 30px 0;
 }

 nav {
 display: flex;
 justify-content: space-between;
 align-items: center;
 height: 100%;
 }

 .logo {
 font-size: 1.5rem;
 font-weight: 700;
 color: var(--color-white);
 transition: color 0.3s ease;
 }


 .logo span {
 font-weight: 400;
 font-size: 1.1rem;
 opacity: 0.8;
 margin-left: 5px;
 color: rgba(255, 255, 255, 0.7);
 }


 .nav-links {
 display: flex;
 gap: 20px;
 align-items: center;
 }

 .nav-links a {
 color: var(--color-white);
 font-weight: 500;
 transition: color 0.3s ease;
 }


 .nav-links a:hover {
 color: var(--color-accent) !important;
 }

 .nav-links a.btn {
 color: var(--color-white) !important;
 }

 .mobile-menu-btn {
 display: none;
 font-size: 1.5rem;
 background: none;
 border: none;
 color: var(--color-white);
 cursor: pointer;
 transition: color 0.3s ease;
 }


 /* Animations & Extras */
 .fade-in-section {
 opacity: 0;
 transform: translateY(30px);
 transition: opacity 0.8s ease-out, transform 0.8s ease-out;
 will-change: opacity, transform;
 }

 .fade-in-section.is-visible {
 opacity: 1;
 transform: none;
 }



 #loader {
 position: fixed;
 top: 0;
 left: 0;
 width: 100vw;
 height: 100vh;
 background-color: var(--color-white);
 z-index: 9999;
 display: flex;
 justify-content: center;
 align-items: center;
 transition: opacity 0.5s ease;
 }

 .spinner {
 width: 50px;
 height: 50px;
 border: 5px solid var(--color-light-blue);
 border-top: 5px solid var(--color-accent);
 border-radius: 50%;
 animation: spin 1s linear infinite;
 }

 @keyframes spin {
 0% { transform: rotate(0deg); }
 100% { transform: rotate(360deg); }
 }

 /* 2. Hero Section */
 .hero {
 background: linear-gradient(135deg, var(--color-navy) 0%, #0c1f36 100%);
 color: var(--color-white);
 min-height: 100vh; /* Full viewport height */
 display: flex;
 align-items: center;
 padding: 120px 0 60px;
 overflow: hidden;
 }

 .hero-container {
 display: flex;
 flex-direction: column;
 align-items: center;
 gap: 50px;
 animation: fadeIn 1.2s ease-out forwards;
 opacity: 0;
 text-align: center;
 }



 .hero-content {
 flex: 1;
 max-width: 600px;
 }

 .hero h1 {
 color: var(--color-white);
 font-size: 2.8rem;
 line-height: 1.2;
 margin-bottom: 20px;
 }

 .hero p.subtitle {
 color: var(--color-light-blue);
 font-size: 1.2rem;
 margin-bottom: 40px;
 opacity: 0.9;
 }

 .hero-buttons {
 display: flex;
 gap: 15px;
 flex-wrap: wrap;
 margin-bottom: 40px;
 justify-content: center;
 }

 .btn-white {
 background-color: var(--color-white);
 color: var(--color-navy);
 border: 2px solid var(--color-white);
 }

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

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

 .btn-outline-white:hover {
 background-color: var(--color-white);
 color: var(--color-navy);
 }

 .trust-badges {
 display: flex;
 gap: 20px;
 flex-wrap: wrap;
 border-top: 1px solid rgba(255, 255, 255, 0.2);
 padding-top: 20px;
 justify-content: center;
 }

 .badge {
 font-size: 0.9rem;
 display: flex;
 align-items: center;
 gap: 8px;
 color: var(--color-light-blue);
 }

 .badge::before {
 content: '✓';
 color: var(--color-accent);
 font-weight: bold;
 }

 .hero-image-wrapper {
 flex: 1;
 display: flex;
 justify-content: center;
 align-items: center;
 width: 100%;
 max-width: 500px;
 }

 .machine-placeholder {
 width: 100%;
 aspect-ratio: 3/4;
 background-color: #e0e0e0;
 border-radius: 12px;
 display: flex;
 justify-content: center;
 align-items: center;
 color: #666;
 font-weight: 600;
 font-size: 1.5rem;
 box-shadow: 0 20px 40px rgba(0,0,0,0.3);
 border: 4px solid var(--color-white);
 }

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

 /* 3. About Section */
 .about-content {
 text-align: center;
 max-width: 800px;
 margin: 0 auto;
 }

 /* 4. Features Section */
 #features {
 background-color: #f8f9fa;
 }

 .features-grid {
 display: grid;
 grid-template-columns: 1fr;
 gap: 30px;
 margin-top: 50px;
 }

 .feature-card {
 background-color: var(--color-white);
 padding: 40px 30px;
 border-radius: 12px;
 box-shadow: 0 4px 15px rgba(0,0,0,0.05);
 text-align: center;
 transition: var(--transition);
 border: 1px solid rgba(0,0,0,0.05);
 }

 .feature-card:hover {
 transform: translateY(-5px);
 box-shadow: 0 10px 25px rgba(0,0,0,0.1);
 }

 .feature-icon-wrapper {
 width: 70px;
 height: 70px;
 background-color: var(--color-light-blue);
 border-radius: 50%;
 display: flex;
 align-items: center;
 justify-content: center;
 font-size: 2rem;
 margin: 0 auto 20px;
 }

 .feature-card h3 {
 color: var(--color-navy);
 font-size: 1.25rem;
 margin-bottom: 15px;
 }

 .feature-card p {
 color: var(--color-text-muted);
 margin-bottom: 0;
 font-size: 0.95rem;
 }

 /* 5. How It Works Section */
 #how-it-works {
 background-color: var(--color-white);
 }

 .steps-grid {
 display: grid;
 grid-template-columns: 1fr;
 gap: 40px;
 margin-top: 60px;
 position: relative;
 }

 @media (min-width: 768px) {
 .steps-grid::before {
 content: '';
 position: absolute;
 top: 35px;
 left: 0;
 width: 100%;
 height: 2px;
 background-color: var(--color-light-blue);
 z-index: 1;
 }
 }

 .step-card {
 text-align: center;
 position: relative;
 z-index: 2;
 background-color: var(--color-white);
 padding: 0 20px;
 }

 .step-number {
 width: 70px;
 height: 70px;
 background-color: var(--color-white);
 color: var(--color-accent);
 border: 2px solid var(--color-accent);
 border-radius: 50%;
 display: flex;
 align-items: center;
 justify-content: center;
 font-size: 1.5rem;
 font-weight: 700;
 margin: 0 auto 20px;
 box-shadow: 0 0 0 10px var(--color-white);
 }

 .step-card h3 {
 color: var(--color-navy);
 font-size: 1.25rem;
 margin-bottom: 15px;
 }
 
 .step-card p {
 font-size: 0.95rem;
 }

 /* 6. Who Is It For Section */
 #audience {
 background-color: var(--color-navy);
 color: var(--color-white);
 }
 
 #audience h2 {
 color: var(--color-white);
 }
 
 #audience p.subtitle {
 color: var(--color-light-blue);
 }

 .audience-grid {
 display: grid;
 grid-template-columns: 1fr;
 gap: 20px;
 margin-top: 50px;
 }

 @media (min-width: 768px) {
 .audience-grid {
 grid-template-columns: repeat(2, 1fr);
 }
 }

 @media (min-width: 1024px) {
 .audience-grid {
 grid-template-columns: repeat(4, 1fr);
 }
 }

 .audience-card {
 background-color: rgba(255, 255, 255, 0.05);
 border: 1px solid rgba(255, 255, 255, 0.1);
 padding: 30px 20px;
 border-radius: 8px;
 text-align: center;
 transition: var(--transition);
 }

 .audience-card:hover {
 background-color: rgba(255, 255, 255, 0.1);
 transform: translateY(-5px);
 }

 .audience-icon {
 font-size: 2.5rem;
 margin-bottom: 15px;
 display: inline-block;
 }

 .audience-card h3 {
 color: var(--color-white);
 font-size: 1.1rem;
 margin-bottom: 10px;
 }

 .audience-card p {
 color: rgba(255, 255, 255, 0.8);
 font-size: 0.9rem;
 margin-bottom: 0;
 }

 /* 7. Technical Specifications */
 #specs {
 background-color: #f8f9fa;
 }

 .specs-table {
 width: 100%;
 max-width: 800px;
 margin: 40px auto 0;
 border-collapse: collapse;
 background-color: var(--color-white);
 box-shadow: 0 4px 6px rgba(0,0,0,0.05);
 }

 .specs-table th, .specs-table td {
 padding: 15px 20px;
 border-bottom: 1px solid #eee;
 text-align: left;
 }

 .specs-table th {
 background-color: var(--color-navy);
 color: var(--color-white);
 width: 35%;
 font-weight: 600;
 }
 
 .specs-table td {
 color: var(--color-text);
 }

 /* 8. About MASK Controls Section */
 .company-info {
 text-align: center;
 max-width: 800px;
 margin: 0 auto;
 }

 /* 9. Contact Form Section */
 #contact {
 background-color: var(--color-white);
 }

 .contact-container {
 max-width: 600px;
 margin: 0 auto;
 background-color: var(--color-white);
 padding: 40px;
 border-radius: 12px;
 box-shadow: 0 10px 30px rgba(0,0,0,0.08);
 border: 1px solid rgba(0,0,0,0.05);
 }

 .form-group {
 margin-bottom: 20px;
 }

 .form-group label {
 display: block;
 margin-bottom: 8px;
 font-weight: 500;
 color: var(--color-navy);
 }

 .form-group input,
 .form-group textarea {
 width: 100%;
 padding: 12px 15px;
 border: 1px solid #ddd;
 border-radius: 6px;
 font-family: 'Inter', sans-serif;
 transition: var(--transition);
 background-color: #fcfcfc;
 }

 .form-group input:focus,
 .form-group textarea:focus {
 outline: none;
 border-color: var(--color-accent);
 background-color: var(--color-white);
 box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
 }

 .btn-navy {
 background-color: var(--color-navy);
 color: var(--color-white);
 width: 100%;
 font-size: 1.1rem;
 padding: 14px;
 }

 .btn-navy:hover {
 background-color: var(--color-accent);
 color: var(--color-white);
 transform: translateY(-2px);
 box-shadow: 0 4px 8px rgba(0,0,0,0.1);
 }

 .privacy-note {
 font-size: 0.85rem;
 color: var(--color-text-muted);
 text-align: center;
 margin-top: 15px;
 }

 .form-success {
 display: none;
 background-color: #d4edda;
 color: #155724;
 padding: 15px;
 border-radius: 6px;
 margin-bottom: 20px;
 border: 1px solid #c3e6cb;
 text-align: center;
 }

 /* 10. Footer */
 footer {
 background-color: #0d2137;
 color: var(--color-white);
 padding: 60px 0 20px;
 }

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

 .footer-col h3 {
 color: var(--color-white);
 font-size: 1.2rem;
 margin-bottom: 20px;
 }

 .footer-col p, .footer-col a {
 color: rgba(255, 255, 255, 0.7);
 font-size: 0.95rem;
 margin-bottom: 10px;
 display: block;
 }

 .footer-col a:hover {
 color: var(--color-accent);
 }

 .footer-bottom {
 text-align: center;
 padding-top: 20px;
 border-top: 1px solid rgba(255, 255, 255, 0.1);
 color: rgba(255, 255, 255, 0.5);
 font-size: 0.85rem;
 }

 /* Product Gallery Section */
 .styled-image {
 border-radius: 12px;
 box-shadow: 0 10px 30px rgba(0,0,0,0.1);
 max-width: 100%;
 height: auto;
 display: block;
 }

 .gallery-grid {
 display: grid;
 grid-template-columns: 1fr;
 gap: 30px;
 }

 /* Utility Classes */
 .text-center { text-align: center; }
 .text-right { text-align: right; }
 .mb-40 { margin-bottom: 40px; }
 .text-muted { color: var(--color-text-muted) !important; }
 
 .btn-nav-cta {
 padding: 10px 24px !important;
 margin-left: 10px;
 background-color: var(--color-accent) !important;
 color: var(--color-white) !important;
 border-radius: 30px !important;
 font-weight: 600 !important;
 border: none;
 box-shadow: 0 4px 10px rgba(33, 150, 243, 0.3);
 transition: all 0.3s ease;
 }
 
 .btn-nav-cta:hover {
 transform: translateY(-2px) !important;
 box-shadow: 0 6px 15px rgba(33, 150, 243, 0.4) !important;
 background-color: #1976D2 !important; /* slightly darker blue on hover */
 }

 /* Responsive Design */
 @media (min-width: 768px) {
 .hero h1 {
 font-size: 3.5rem;
 }
 .features-grid {
 grid-template-columns: repeat(2, 1fr);
 }
 .steps-grid {
 grid-template-columns: repeat(3, 1fr);
 }
 .footer-grid {
 grid-template-columns: repeat(3, 1fr);
 }
 .gallery-grid {
 grid-template-columns: repeat(3, 1fr);
 }
 }

 @media (min-width: 1024px) {
 .features-grid {
 grid-template-columns: repeat(3, 1fr);
 }
 }

 @media (max-width: 767px) {
 .nav-links {
 display: none;
 position: absolute;
 top: 100%;
 left: 0;
 width: 100%;
 background-color: var(--color-white);
 flex-direction: column;
 padding: 20px;
 box-shadow: 0 4px 6px rgba(0,0,0,0.1);
 }
 .nav-links.active {
 display: flex;
 }
 .nav-links a {
 color: var(--color-navy) !important;
 }
 .nav-links a.btn {
 color: var(--color-white) !important;
 display: inline-block;
 width: fit-content;
 }
 .mobile-menu-btn {
 display: block;
 }
 .footer-col {
 text-align: center !important;
 }
 }

 @media (min-width: 992px) {
 .hero-container {
 flex-direction: row;
 justify-content: space-between;
 text-align: left;
 }
 .hero-buttons {
 justify-content: flex-start;
 }
 .trust-badges {
 justify-content: flex-start;
 }
 }

 /* WhatsApp Floating Button */
 .whatsapp-float {
 position: fixed;
 bottom: 30px;
 right: 30px;
 width: 55px;
 height: 55px;
 background-color: #25d366;
 color: white;
 border-radius: 50%;
 display: flex;
 justify-content: center;
 align-items: center;
 box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
 z-index: 1000;
 transition: all 0.3s ease;
 text-decoration: none;
 }
 
 .whatsapp-float:hover {
 background-color: #128C7E;
 color: white;
 transform: scale(1.1);
 }
 
 .whatsapp-float svg {
 width: 30px;
 height: 30px;
 fill: currentColor;
 }


/* ==========================================================================
   Inner Pages & Detailed Layout Extensions
   ========================================================================== */
.inner-hero {
  background: linear-gradient(135deg, var(--color-navy) 0%, #0c1f36 100%);
  color: var(--color-white);
  padding: 140px 0 60px;
  text-align: center;
  position: relative;
}

.inner-hero h1 {
  color: var(--color-white);
  font-size: 2.6rem;
  line-height: 1.25;
  margin-bottom: 15px;
}

.inner-hero p.lead {
  color: var(--color-light-blue);
  font-size: 1.15rem;
  max-width: 780px;
  margin: 0 auto 20px;
  line-height: 1.6;
}

.breadcrumb-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 20px;
}

.breadcrumb-nav a {
  color: var(--color-light-blue);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb-nav a:hover {
  color: #fff;
  text-decoration: underline;
}

.content-section {
  padding: 70px 0;
}

.content-section.bg-light {
  background-color: var(--color-light-gray);
}

.rich-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 35px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  border: 1px solid #eef2f6;
  margin-bottom: 30px;
  transition: var(--transition);
}

.rich-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 35px rgba(0,0,0,0.08);
}

.rich-card h3 {
  color: var(--color-navy);
  font-size: 1.45rem;
  margin-bottom: 15px;
}

.badge-tag {
  display: inline-block;
  background: rgba(33, 150, 243, 0.12);
  color: #1565C0;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.3px;
}

.content-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 992px) {
  .content-grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.spec-table-container {
  overflow-x: auto;
  margin: 30px 0;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
  text-align: left;
}

.spec-table th {
  background: var(--color-navy);
  color: #ffffff;
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.95rem;
}

.spec-table td {
  padding: 15px 20px;
  border-bottom: 1px solid #edf2f7;
  color: var(--color-dark-gray);
  font-size: 0.95rem;
}

.spec-table tr:nth-child(even) td {
  background-color: #f8fafc;
}

.cta-banner {
  background: linear-gradient(135deg, var(--color-navy) 0%, #0d233a 100%);
  color: #ffffff;
  padding: 60px 40px;
  border-radius: 16px;
  text-align: center;
  margin: 50px 0;
}

.cta-banner h2 {
  color: #ffffff;
  font-size: 2.2rem;
  margin-bottom: 15px;
}

.cta-banner p {
  color: #b0c9e2;
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 30px;
  line-height: 1.6;
}

.feature-pill-list {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}

.feature-pill-list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  color: var(--color-dark-gray);
  line-height: 1.5;
}

.feature-pill-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-accent);
  font-weight: bold;
}