/* Reset and Base Styles */
:root {
    /* Color Palette */
    --primary-color: #2c5aa0;
    --primary-dark: #1e3a5f;
    --primary-light: #4a7bc9;
    --secondary-color: #ffd700;
    --secondary-dark: #e6c200;
    --text-dark: #333;
    --text-medium: #555;
    --text-light: #666;
    --text-lighter: #f1f3f6;
    --text-white: #ffffff;
    --bg-light: #f9f9f9;
    --bg-lighter: #f8f9fa;
    --white: #ffffff;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-dark: rgba(0, 0, 0, 0.2);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 15px;
    --radius-lg: 20px;
    --radius-xl: 25px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Z-index layers */
    --z-back: -1;
    --z-normal: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
}

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

/* Performance optimizations */
img, video {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Prevent layout shifts */
.lazy {
    background-color: var(--bg-lighter);
    min-height: 200px;
}

/* Optimize text rendering */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--text-lighter);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
    border: 2px solid var(--text-lighter);
    transition: var(--transition-normal);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Simple Keyframe Animations */
@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    0% {
        opacity: 0;
        transform: translateX(-50px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    0% {
        opacity: 0;
        transform: translateX(50px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
    background: var(--bg-light);
    font-size: 16px;
    font-weight: var(--font-weight-normal);
}

/* Enhanced Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
    font-family: var(--font-primary);
}

/* Section Headings */
section h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
    position: relative;
    display: inline-block;
    animation: fadeIn 1s ease-out;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    animation: expandWidth 1s ease-out;
}

@keyframes expandWidth {
    from { width: 0; }
    to { width: 60px; }
}

/* Hero Title */
.hero-content h1 {
    font-size: 3.5rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    letter-spacing: -0.02em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    animation: slideInLeft 1s ease-out;
}

/* Service Card Titles */
.service-content h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
    transition: color var(--transition-normal);
}

.service-content h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: width var(--transition-normal);
}

.service-content h3:hover {
    color: var(--primary-dark);
}

.service-content h3:hover::after {
    width: 60px;
}

/* Text Styles */
p {
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-primary);
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

img {
    transition: transform var(--transition-normal);
    max-width: 100%;
    height: auto;
    display: block;
    will-change: transform;
}

img:hover {
    transform: scale(1.02);
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: var(--z-fixed);
    box-shadow: 0 2px 20px var(--shadow-light);
    transition: all var(--transition-normal);
    will-change: transform;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 5px 20px var(--shadow-medium);
}

.navbar {
    padding: var(--spacing-sm) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-logo img {
    max-height: 60px;
    width: auto;
    transition: transform var(--transition-normal);
    object-fit: contain;
}

.nav-logo img:hover {
    transform: scale(1.05);
}

.logo-text,
.brand-text {
    font-weight: var(--font-weight-bold);
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-left: 12px;
    transition: color var(--transition-normal);
    text-transform: uppercase;
    font-family: var(--font-primary);
}

.nav-logo a:hover .logo-text,
.nav-logo a:hover .brand-text {
    color: var(--primary-dark);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-item {
    text-align: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    transition: color var(--transition-normal);
    position: relative;
    padding: 10px 16px;
    font-size: 1rem;
    font-family: var(--font-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 8px;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link:focus {
    color: var(--primary-color);
    outline: none;
    background-color: rgba(44, 90, 160, 0.1);
}

/* Make Request Quote look same as other nav items */
.request-quote-btn {
    background: none;
    color: var(--text-dark) !important;
    padding: 10px 16px !important;
    border-radius: 8px;
    box-shadow: none;
    position: static;
    overflow: visible;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary-color);
    transition: width var(--transition-normal);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: background-color var(--transition-normal);
    border: 2px solid transparent;
}

.hamburger:hover,
.hamburger:active {
    background-color: rgba(44, 90, 160, 0.1);
}

.hamburger:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: rgba(44, 90, 160, 0.1);
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    margin: 3px 0;
    transition: var(--transition-normal);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.4)), url('images/hero 2.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background-repeat: no-repeat;
    will-change: transform;
    /* Performance optimization */
    transform: translateZ(0);
    backface-visibility: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-content {
    color: var(--white);
    animation: fadeInUp 1s ease-out;
}

.hero-content h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    animation: slideInRight 1s ease-out 0.2s both;
}

.hero-content p {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    color: var(--white);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 0.9rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    font-family: var(--font-primary);
    /* Ensure buttons are accessible */
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.3);
}

.btn:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    box-shadow: 0 6px 20px rgba(44, 90, 160, 0.4);
    transform: translateY(-2px);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
    will-change: transform;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    position: relative;
    overflow: hidden;
}

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

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(44, 90, 160, 0.1), transparent);
    transition: 0.5s;
    will-change: transform;
}

.btn-secondary:hover::before {
    left: 100%;
}

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

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

.btn-outline::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
    will-change: transform;
}

.btn-outline:hover::before {
    left: 100%;
}

.hero-image {
    display: none;
}

/* Vision 2030 Section */
.vision-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-lighter);
}

.vision-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.vision-text h2 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    text-align: left;
}

.vision-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-weight: var(--font-weight-normal);
}

.vision-logo {
    text-align: center;
}

.vision-logo img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px var(--shadow-dark);
    transition: transform var(--transition-normal);
    filter: brightness(1);
    /* Performance optimization */
    will-change: transform;
}

.vision-logo img:hover {
    transform: scale(1.05);
    filter: brightness(1.05);
}

/* Price Calculator Section */
.calculator-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-lighter);
}

.calculator-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
}

.calculator {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: 0 15px 40px var(--shadow-light);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.calculator-form {
    padding: var(--spacing-lg);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-dark);
    font-family: var(--font-primary);
}

.form-group select,
.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color var(--transition-normal);
    font-family: var(--font-primary);
    background-color: var(--white);
}

.form-group select:focus,
.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

/* Add focus styles for accessibility */
.form-group select:focus-visible,
.form-group input:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Add focus styles for keyboard navigation */
.form-group select:focus-within,
.form-group input:focus-within {
    border-color: var(--primary-color);
}

.calculator-result {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.calculator-result h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    text-align: center;
    color: var(--white);
}

.price-display {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: 0 4px 10px var(--shadow-light);
}

/* Features Section */
.features-section {
    padding: var(--spacing-xxl) 0;
}

.features-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.features-section > .container > p {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: 0 8px 32px var(--shadow-light);
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.3);
    position: relative;
    z-index: var(--z-normal);
    will-change: transform;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(44, 90, 160, 0.2);
    z-index: calc(var(--z-normal) + 1);
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    transition: transform var(--transition-normal), color var(--transition-normal);
    /* Improve accessibility */
    outline: 2px solid transparent;
    outline-offset: 2px;
}

.feature-card:hover i {
    transform: scale(1.1);
    color: var(--primary-dark);
}

.feature-card:focus-within i {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    transition: color var(--transition-normal);
    font-weight: var(--font-weight-bold);
}

.feature-card:hover h3 {
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
    font-weight: var(--font-weight-normal);
}

/* Services Section */
.services-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-lighter);
}

.services-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 32px var(--shadow-light);
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    z-index: var(--z-normal);
    will-change: transform;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(44, 90, 160, 0.2);
    z-index: calc(var(--z-normal) + 1);
}

.service-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform var(--transition-normal);
    /* Improve accessibility */
    outline: 2px solid transparent;
    outline-offset: 2px;
    /* Performance optimization */
    will-change: transform;
}

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

.service-card:focus-within img {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.service-content {
    padding: 1.5rem;
}

.service-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.service-content p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-weight: var(--font-weight-normal);
}

/* Experience Section */
.experience-section {
    padding: var(--spacing-xxl) 0;
}

.experience-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.experience-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.experience-content p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--text-light);
    font-weight: var(--font-weight-normal);
}

.experience-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px var(--shadow-dark);
    transition: transform var(--transition-normal), filter var(--transition-normal);
    /* Performance optimization */
    will-change: transform;
}

.experience-image img:hover {
    transform: scale(1.02);
    filter: brightness(1.05);
}

/* Cities Section */
.cities-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-lighter);
}

.cities-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
}

.cities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.city-column ul {
    list-style: none;
}

.city-column li {
    margin-bottom: 0.5rem;
}

.city-column a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-normal);
    font-size: 1.1rem;
}

.city-column a:hover {
    color: var(--primary-color);
    font-weight: 600;
}

/* Gallery Section */
.gallery-section {
    padding: var(--spacing-xxl) 0;
}

.gallery-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.gallery-section p {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-light);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 32px var(--shadow-light);
    transition: all var(--transition-normal);
    position: relative;
    cursor: pointer;
    z-index: var(--z-normal);
    will-change: transform;
    /* Improve accessibility */
    outline: 2px solid transparent;
    outline-offset: 2px;
}

.gallery-item:hover {
    transform: scale(1.03) translateY(-5px);
    box-shadow: 0 20px 40px rgba(44, 90, 160, 0.2);
    z-index: calc(var(--z-normal) + 1);
}

.gallery-item:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform var(--transition-normal);
    /* Performance optimization */
    will-change: transform;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* About Section */
.about-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-lighter);
}

.about-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--text-light);
    font-weight: var(--font-weight-normal);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px var(--shadow-dark);
    transition: transform var(--transition-normal), filter var(--transition-normal);
    /* Performance optimization */
    will-change: transform;
}

.about-image img:hover {
    transform: scale(1.02);
    filter: brightness(1.05);
}

/* Contact Section */
.contact-section {
    padding: var(--spacing-xxl) 0;
}

.contact-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    font-weight: var(--font-weight-bold);
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-light);
    line-height: 1.8;
    font-weight: var(--font-weight-normal);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    width: 30px;
}

.contact-form {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: 0 5px 20px var(--shadow-light);
}

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

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color var(--transition-normal);
    font-family: var(--font-primary);
    background-color: var(--white);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

/* Add focus styles for accessibility */
.contact-form input:focus-visible,
.contact-form select:focus-visible,
.contact-form textarea:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Add focus styles for keyboard navigation */
.contact-form input:focus-within,
.contact-form select:focus-within,
.contact-form textarea:focus-within {
    border-color: var(--primary-color);
}

/* Footer Section */
.footer {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    color: var(--white);
    padding: 32px 0 20px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color), var(--secondary-color));
}

.footer-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    position: relative;
    padding-bottom: 6px;
    color: var(--white);
    font-weight: var(--font-weight-bold);
}

.footer-column h3::after, .footer-column h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background: var(--secondary-color);
}

.footer-column p {
    margin-bottom: 0.5rem;
    opacity: 0.9;
    color: var(--white);
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column li {
    margin-bottom: 6px;
}

.footer-column a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.9;
    transition: all var(--transition-normal);
    display: inline-block;
}

.footer-column a:hover {
    opacity: 1;
    transform: translateX(5px);
    color: var(--secondary-color);
}

.footer-links li {
    margin-bottom: 6px;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.9;
    transition: all var(--transition-normal);
    display: inline-block;
}

.footer-links a:hover {
    opacity: 1;
    transform: translateX(5px);
    color: var(--secondary-color);
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background: var(--secondary-color);
    color: var(--primary-dark);
    transform: translateY(-3px);
}

.footer-bottom {
    margin-top: 20px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    opacity: 0.8;
    font-size: 0.9rem;
    color: var(--white);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
        padding: 10px;
        border-radius: 8px;
        transition: background-color var(--transition-normal);
        z-index: var(--z-fixed);
    }

    .hamburger:hover,
    .hamburger:active {
        background-color: rgba(44, 90, 160, 0.1);
    }

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

    .nav-logo img {
        max-height: 50px;
        width: auto;
    }

    .logo-text {
        font-size: 1rem;
        margin-left: 8px;
        white-space: nowrap;
    }
    
    .nav-container {
        padding: 0 var(--spacing-sm);
        min-height: 60px;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: all 0.4s ease;
        box-shadow: 0 20px 40px var(--shadow-light);
        padding: var(--spacing-lg) 0;
        z-index: var(--z-dropdown);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        border: 1px solid rgba(255, 255, 255, 0.2);
        will-change: transform;
    }

    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        width: 100%;
        margin: 0.8rem 0;
    }
    
    .nav-link {
        font-size: 1.1rem;
        padding: 1rem 2rem;
        border-radius: var(--radius-xl);
        margin: 0.5rem 1rem;
        transition: all var(--transition-normal);
        background: rgba(44, 90, 160, 0.05);
        border: 1px solid transparent;
    }

    .nav-link:hover {
        background: rgba(44, 90, 160, 0.1);
        border-color: rgba(44, 90, 160, 0.2);
        transform: scale(1.02);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
        padding: 0 var(--spacing-sm);
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content h2 {
        font-size: 1.5rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }

    .vision-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }

    .vision-text h2 {
        font-size: 2rem;
        text-align: center;
    }

    .vision-text p {
        font-size: 1rem;
        text-align: center;
    }

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

    .calculator-form {
        order: 2;
    }

    .calculator-result {
        order: 1;
    }

    .experience-section .container,
    .about-content,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .features-grid,
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

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

    .gallery-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .footer-columns {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }

    .service-card img {
        height: 200px;
    }

    section h2 {
        font-size: 2rem;
    }

    .calculator-section h2,
    .features-section h2,
    .services-section h2,
    .gallery-section h2,
    .about-section h2,
    .contact-section h2,
    .cities-section h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }

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

    .calculator {
        margin: 0 10px;
    }

    .calculator-form,
    .calculator-result {
        padding: 1.5rem;
    }

    .price-display {
        font-size: 1.5rem;
        min-height: 60px;
        color: var(--white);
        background: rgba(255, 255, 255, 0.15);
        padding: 0.75rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .nav-container {
        padding: 0 var(--spacing-sm);
    }

    .hero {
        padding: 100px 0 60px;
        background-attachment: scroll;
    }

    .vision-text h2 {
        font-size: 1.8rem;
    }

    .services-section h2,
    .features-section h2,
    .gallery-section h2,
    .about-section h2,
    .calculator-section h2,
    .contact-section h2,
    .cities-section h2 {
        font-size: 2rem;
    }
    
    .footer-columns {
        grid-template-columns: 1fr;
    }

    /* Additional mobile improvements */
    .nav-menu {
        top: 60px;
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    .hero-content h2 {
        font-size: 1.3rem;
    }

    .hero-content p {
        font-size: 0.9rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.85rem;
    }

    section h2 {
        font-size: 1.8rem;
    }

    .service-card img {
        height: 180px;
    }

    .gallery-item img {
        height: 200px;
    }

    .features-grid,
    .services-grid {
        gap: var(--spacing-sm);
    }

    .feature-card,
    .service-card {
        padding: 1.5rem;
    }

    .feature-card i {
        font-size: 2.5rem;
    }

    .feature-card h3 {
        font-size: 1.3rem;
    }

    .service-content h3 {
        font-size: 1.3rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus Styles for Accessibility */
*:focus {
    outline: 2px dashed var(--primary-color);
    outline-offset: 2px;
}

/* Improved focus styles for specific elements */
.btn:focus,
.form-group input:focus,
.form-group select:focus,
.nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --shadow-light: rgba(0, 0, 0, 0.3);
        --shadow-medium: rgba(0, 0, 0, 0.5);
        --shadow-dark: rgba(0, 0, 0, 0.7);
    }
    
    .btn-primary {
        border: 2px solid var(--primary-dark);
    }
    
    .btn-secondary {
        border: 2px solid var(--white);
    }
    
    .btn-outline {
        border: 2px solid var(--primary-color);
    }
}

/* Print Styles */
@media print {
    .header, .footer, .hero, .hero-buttons {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
    
    .container {
        width: 100%;
        max-width: 100%;
        padding: 0;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
    will-change: transform;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Enhanced loading states */
.btn.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.8;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: 8px;
}

/* Enhanced Fade In Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    will-change: opacity, transform;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Micro-interaction animations */
.micro-bounce {
    animation: bounce 0.8s ease;
    will-change: transform;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
    40% {transform: translateY(-10px);}
    60% {transform: translateY(-5px);}
}

.micro-fade {
    animation: fadeIn 0.5s ease-in;
    will-change: opacity;
}

/* Loading skeleton styles for better perceived performance */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 4px;
    opacity: 0.8;
    will-change: background-position;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Premium Features */
.premium-toilet-card {
    border: 2px solid var(--primary-color);
    box-shadow: 0 8px 25px rgba(44, 90, 160, 0.15);
    transform: scale(1.02);
    transition: all var(--transition-normal);
}

.premium-toilet-card:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 35px rgba(44, 90, 160, 0.25);
}

.premium-toilet-card .service-content h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.toilet-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: var(--spacing-sm) 0;
}

.feature-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(44, 90, 160, 0.3);
}

.premium-toilet-card .btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border: none;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.8rem 1.5rem;
    transition: all var(--transition-normal);
}

.premium-toilet-card .btn:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(44, 90, 160, 0.4);
}

/* Legacy Fade In Animation (kept for compatibility) */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Focus Styles for Accessibility */
*:focus {
    outline: 2px dashed var(--primary-color);
    outline-offset: 2px;
}

/* Improved focus styles for specific elements */
.btn:focus,
.form-group input:focus,
.form-group select:focus,
.nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --shadow-light: rgba(0, 0, 0, 0.3);
        --shadow-medium: rgba(0, 0, 0, 0.5);
        --shadow-dark: rgba(0, 0, 0, 0.7);
    }
    
    .btn-primary {
        border: 2px solid var(--primary-dark);
    }
    
    .btn-secondary {
        border: 2px solid var(--white);
    }
    
    .btn-outline {
        border: 2px solid var(--primary-color);
    }
}

/* Print Styles */
@media print {
    .header, .footer, .hero, .hero-buttons {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
    
    .container {
        width: 100%;
        max-width: 100%;
        padding: 0;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-dark: #eee;
        --text-medium: #ddd;
        --text-light: #ccc;
        --text-lighter: #333;
        --bg-light: #1a1a1a;
        --bg-lighter: #222;
        --white: #111;
    }
    
    body {
        background: var(--bg-light);
        color: var(--text-dark);
    }
    
    .header {
        background: rgba(30, 30, 30, 0.95);
    }
    
    .header.scrolled {
        background: rgba(30, 30, 30, 0.98);
    }
    
    .nav-menu {
        background: rgba(30, 30, 30, 0.98);
    }
    
    .calculator {
        background: var(--bg-lighter);
    }
    
    .feature-card,
    .service-card,
    .contact-form {
        background: var(--bg-lighter);
    }
}

/* Performance optimizations */
img, video {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Prevent layout shifts */
.lazy {
    background-color: var(--bg-lighter);
    min-height: 200px;
}

/* Optimize text rendering */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}