/*------------------------------------------------------------------
Project: Nati Automotive Website
Author: agent_website       
Last change: 2025-01-21 
Primary use: Automotive Services & Parts Website
-------------------------------------------------------------------*/

/*----------------Table of contents Start---------------------------
1. CSS Variables & Root Styles
2. Base Styles & Typography
3. Header & Navigation
4. Hero Section
5. Services Section
6. Products Section
7. About Section
8. Contact Section
9. Footer
10. Buttons & Forms
11. Cards & Components
12. Animations & Transitions
13. Responsive Design
14. Utility Classes
15. Mobile Optimizations
---------Table of contents End-----------------------------------*/

/*------------------------ [Color Palette] ------------------------
Primary: #007bff (Blue)
Secondary: #6c757d (Gray)
Success: #28a745 (Green)
Danger: #dc3545 (Red)
Warning: #ffc107 (Yellow)
Info: #17a2b8 (Cyan)
Dark: #343a40 (Dark Gray)
Light: #f8f9fa (Light Gray)
White: #ffffff
Black: #000000
-------------------------------------------------------------------*/

/************************ 1. CSS Variables & Root Styles ***************************/
:root {
    /* Color Variables */
    --primary-color: #007bff;
    --primary-dark: #0056b3;
    --primary-light: #66b3ff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
    --white: #ffffff;
    --black: #000000;
    
    /* Typography */
    --font-family-base: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-family-heading: 'Arial', sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --line-height-base: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 3rem;
    
    /* Border */
    --border-radius: 0.375rem;
    --border-radius-sm: 0.25rem;
    --border-radius-lg: 0.5rem;
    --border-width: 1px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
}

/************************ 2. Base Styles & Typography ***************************/
* {
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--dark-color);
    background-color: var(--white);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    color: var(--secondary-color);
}

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

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Lists */
ul, ol {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

li {
    margin-bottom: var(--spacing-xs);
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    border-style: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/************************ 3. Header & Navigation ***************************/
.navbar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white) !important;
    text-decoration: none;
}

.navbar-brand:hover {
    color: var(--white) !important;
    text-decoration: none;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md) !important;
    margin: 0 var(--spacing-xs);
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
}

.navbar-nav .nav-link:hover {
    color: var(--white) !important;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.navbar-nav .nav-link.active {
    color: var(--white) !important;
    background: rgba(255, 255, 255, 0.2);
}

.navbar-toggler {
    border: none;
    padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* Logo Styles */
.logo-container {
    display: flex;
    align-items: center;
    transition: var(--transition-base);
}

.logo-container img {
    filter: brightness(1.1);
    transition: var(--transition-base);
}

.logo-container:hover img {
    filter: brightness(1.3) drop-shadow(0 0 10px rgba(255, 255, 255, 0.5));
}

/************************ 4. Hero Section ***************************/
.hero-section {
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.9), rgba(0, 86, 179, 0.9)),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><rect fill="%23f8f9fa" width="1200" height="600"/><circle fill="%23007bff" opacity="0.1" cx="200" cy="150" r="100"/><circle fill="%23007bff" opacity="0.1" cx="800" cy="300" r="150"/><circle fill="%23007bff" opacity="0.1" cx="1000" cy="100" r="80"/></svg>');
    background-size: cover;
    background-position: center;
    padding: 120px 0 80px;
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0, 123, 255, 0.1), rgba(0, 86, 179, 0.1));
    z-index: 1;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.hero-cta {
    display: inline-flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

/************************ 5. Services Section ***************************/
.services-section {
    padding: 80px 0;
    background: var(--light-color);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

.service-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

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

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
}

.service-description {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-lg);
}

/************************ 6. Products Section ***************************/
.products-section {
    padding: 80px 0;
    background: var(--white);
}

.product-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 250px;
    background: var(--light-color);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.product-content {
    padding: var(--spacing-lg);
}

.product-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
}

.product-description {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

/************************ 7. About Section ***************************/
.about-section {
    padding: 80px 0;
    background: var(--light-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    margin-bottom: var(--spacing-lg);
}

.about-text p {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.about-features {
    list-style: none;
    padding: 0;
}

.about-features li {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.about-features li i {
    color: var(--success-color);
    margin-right: var(--spacing-md);
    font-size: 1.25rem;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

/************************ 8. Contact Section ***************************/
.contact-section {
    padding: 80px 0;
    background: var(--white);
}

.contact-info {
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    height: 100%;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-md);
    font-size: 1.25rem;
}

.contact-form {
    background: var(--light-color);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
}

/************************ 9. Footer ***************************/
.footer {
    background: linear-gradient(135deg, var(--dark-color) 0%, #2c3e50 100%);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h5 {
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    font-size: 1.25rem;
}

.footer-section p,
.footer-section li {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-sm);
}

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--white);
    text-decoration: none;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: all var(--transition-base);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/************************ 10. Buttons & Forms ***************************/
.btn {
    display: inline-block;
    padding: 12px 24px;
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    border: var(--border-width) solid transparent;
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
    user-select: none;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-2px);
}

.btn:focus {
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), #004085);
    border-color: var(--primary-dark);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: #5a6268;
    border-color: #545b62;
    color: var(--white);
}

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

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

.btn-lg {
    padding: 16px 32px;
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
}

/* Forms */
.form-control {
    display: block;
    width: 100%;
    padding: 12px 16px;
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--dark-color);
    background: var(--white);
    border: var(--border-width) solid #ced4da;
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary-color);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: inline-block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--dark-color);
}

/************************ 11. Cards & Components ***************************/
.card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: var(--spacing-lg);
    background: var(--light-color);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-lg);
    background: var(--light-color);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.badge {
    display: inline-block;
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--border-radius-sm);
}

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

.badge-success {
    background: var(--success-color);
    color: var(--white);
}

.badge-warning {
    background: var(--warning-color);
    color: var(--dark-color);
}

.badge-danger {
    background: var(--danger-color);
    color: var(--white);
}

/************************ 12. Animations & Transitions ***************************/
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

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

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

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.animate-fadeIn { animation: fadeIn 0.6s ease-out; }
.animate-fadeInUp { animation: fadeInUp 0.6s ease-out; }
.animate-fadeInDown { animation: fadeInDown 0.6s ease-out; }
.animate-slideInLeft { animation: slideInLeft 0.6s ease-out; }
.animate-slideInRight { animation: slideInRight 0.6s ease-out; }
.animate-pulse { animation: pulse 2s infinite; }

/* Hover Animations */
.hover-lift {
    transition: transform var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-5px);
}

.hover-scale {
    transition: transform var(--transition-base);
}

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

/************************ 13. Responsive Design ***************************/
/* Large devices (desktops, 992px and up) */
@media (max-width: 1199.98px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title h2 {
        font-size: 2.25rem;
    }
}

/* Medium devices (tablets, 768px and up) */
@media (max-width: 991.98px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-section {
        padding: 100px 0 60px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .services-section,
    .products-section,
    .about-section,
    .contact-section {
        padding: 60px 0;
    }
}

/* Small devices (landscape phones, 576px and up) */
@media (max-width: 767.98px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-section {
        padding: 80px 0 40px;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .services-section,
    .products-section,
    .about-section,
    .contact-section {
        padding: 40px 0;
    }
    
    .service-card,
    .product-card {
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Extra small devices (portrait phones, less than 576px) */
@media (max-width: 575.98px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title h2 {
        font-size: 1.75rem;
    }
    
    .service-card,
    .contact-form,
    .contact-info {
        padding: var(--spacing-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
}

/************************ 14. Utility Classes ***************************/
/* Spacing */
.m-0 { margin: 0 !important; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.ml-0 { margin-left: 0 !important; }
.mr-0 { margin-right: 0 !important; }

.m-1 { margin: var(--spacing-xs) !important; }
.mt-1 { margin-top: var(--spacing-xs) !important; }
.mb-1 { margin-bottom: var(--spacing-xs) !important; }
.ml-1 { margin-left: var(--spacing-xs) !important; }
.mr-1 { margin-right: var(--spacing-xs) !important; }

.m-2 { margin: var(--spacing-sm) !important; }
.mt-2 { margin-top: var(--spacing-sm) !important; }
.mb-2 { margin-bottom: var(--spacing-sm) !important; }
.ml-2 { margin-left: var(--spacing-sm) !important; }
.mr-2 { margin-right: var(--spacing-sm) !important; }

.m-3 { margin: var(--spacing-md) !important; }
.mt-3 { margin-top: var(--spacing-md) !important; }
.mb-3 { margin-bottom: var(--spacing-md) !important; }
.ml-3 { margin-left: var(--spacing-md) !important; }
.mr-3 { margin-right: var(--spacing-md) !important; }

.m-4 { margin: var(--spacing-lg) !important; }
.mt-4 { margin-top: var(--spacing-lg) !important; }
.mb-4 { margin-bottom: var(--spacing-lg) !important; }
.ml-4 { margin-left: var(--spacing-lg) !important; }
.mr-4 { margin-right: var(--spacing-lg) !important; }

.m-5 { margin: var(--spacing-xl) !important; }
.mt-5 { margin-top: var(--spacing-xl) !important; }
.mb-5 { margin-bottom: var(--spacing-xl) !important; }
.ml-5 { margin-left: var(--spacing-xl) !important; }
.mr-5 { margin-right: var(--spacing-xl) !important; }

/* Padding */
.p-0 { padding: 0 !important; }
.pt-0 { padding-top: 0 !important; }
.pb-0 { padding-bottom: 0 !important; }
.pl-0 { padding-left: 0 !important; }
.pr-0 { padding-right: 0 !important; }

.p-1 { padding: var(--spacing-xs) !important; }
.pt-1 { padding-top: var(--spacing-xs) !important; }
.pb-1 { padding-bottom: var(--spacing-xs) !important; }
.pl-1 { padding-left: var(--spacing-xs) !important; }
.pr-1 { padding-right: var(--spacing-xs) !important; }

.p-2 { padding: var(--spacing-sm) !important; }
.pt-2 { padding-top: var(--spacing-sm) !important; }
.pb-2 { padding-bottom: var(--spacing-sm) !important; }
.pl-2 { padding-left: var(--spacing-sm) !important; }
.pr-2 { padding-right: var(--spacing-sm) !important; }

.p-3 { padding: var(--spacing-md) !important; }
.pt-3 { padding-top: var(--spacing-md) !important; }
.pb-3 { padding-bottom: var(--spacing-md) !important; }
.pl-3 { padding-left: var(--spacing-md) !important; }
.pr-3 { padding-right: var(--spacing-md) !important; }

.p-4 { padding: var(--spacing-lg) !important; }
.pt-4 { padding-top: var(--spacing-lg) !important; }
.pb-4 { padding-bottom: var(--spacing-lg) !important; }
.pl-4 { padding-left: var(--spacing-lg) !important; }
.pr-4 { padding-right: var(--spacing-lg) !important; }

.p-5 { padding: var(--spacing-xl) !important; }
.pt-5 { padding-top: var(--spacing-xl) !important; }
.pb-5 { padding-bottom: var(--spacing-xl) !important; }
.pl-5 { padding-left: var(--spacing-xl) !important; }
.pr-5 { padding-right: var(--spacing-xl) !important; }

/* Text Utilities */
.text-left { text-align: left !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-justify { text-align: justify !important; }

.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-info { color: var(--info-color) !important; }
.text-dark { color: var(--dark-color) !important; }
.text-light { color: var(--light-color) !important; }
.text-white { color: var(--white) !important; }
.text-muted { color: var(--secondary-color) !important; }

/* Background Utilities */
.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }
.bg-success { background-color: var(--success-color) !important; }
.bg-danger { background-color: var(--danger-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }
.bg-info { background-color: var(--info-color) !important; }
.bg-dark { background-color: var(--dark-color) !important; }
.bg-light { background-color: var(--light-color) !important; }
.bg-white { background-color: var(--white) !important; }

/* Display Utilities */
.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid { display: grid !important; }

/* Flex Utilities */
.justify-content-start { justify-content: flex-start !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-around { justify-content: space-around !important; }

.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }
.align-items-center { align-items: center !important; }
.align-items-baseline { align-items: baseline !important; }
.align-items-stretch { align-items: stretch !important; }

.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }

/* Width & Height */
.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }

/* Position */
.position-static { position: static !important; }
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

/* Border */
.border { border: var(--border-width) solid #dee2e6 !important; }
.border-0 { border: 0 !important; }
.border-top { border-top: var(--border-width) solid #dee2e6 !important; }
.border-right { border-right: var(--border-width) solid #dee2e6 !important; }
.border-bottom { border-bottom: var(--border-width) solid #dee2e6 !important; }
.border-left { border-left: var(--border-width) solid #dee2e6 !important; }

.rounded { border-radius: var(--border-radius) !important; }
.rounded-sm { border-radius: var(--border-radius-sm) !important; }
.rounded-lg { border-radius: var(--border-radius-lg) !important; }
.rounded-circle { border-radius: 50% !important; }
.rounded-0 { border-radius: 0 !important; }

/* Shadow */
.shadow-none { box-shadow: none !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

/************************ 15. Mobile Optimizations ***************************/
@media (max-width: 767.98px) {
    /* Mobile-specific utilities */
    .mobile-hide { display: none !important; }
    .mobile-show { display: block !important; }
    
    /* Mobile navigation improvements */
    .navbar-collapse {
        background: var(--white);
        border-radius: var(--border-radius);
        margin-top: var(--spacing-md);
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
    }
    
    .navbar-collapse .nav-link {
        color: var(--dark-color) !important;
        padding: var(--spacing-sm) 0 !important;
        border-bottom: 1px solid var(--light-color);
    }
    
    .navbar-collapse .nav-link:hover {
        color: var(--primary-color) !important;
        background: transparent;
        transform: none;
    }
    
    /* Mobile form improvements */
    .form-control {
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    /* Mobile touch targets */
    .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Mobile spacing adjustments */
    .hero-section {
        text-align: center;
    }
    
    .service-card,
    .product-card {
        text-align: center;
    }
    
    /* Mobile grid adjustments */
    .row > * {
        margin-bottom: var(--spacing-lg);
    }
    
    .row > *:last-child {
        margin-bottom: 0;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    /* Optimize for retina displays */
    .service-icon,
    .contact-icon {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Print styles */
@media print {
    .navbar,
    .footer,
    .btn,
    .hero-section {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: black;
        background: white;
    }
    
    h1, h2, h3, h4, h5, h6 {
        color: black;
        page-break-after: avoid;
    }
    
    p, li {
        orphans: 3;
        widows: 3;
    }
    
    a {
        text-decoration: underline;
        color: black;
    }
    
    a[href]:after {
        content: " (" attr(href) ")";
    }
    
    .page-break {
        page-break-before: always;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --white: #121212;
        --light-color: #1e1e1e;
        --dark-color: #ffffff;
        --secondary-color: #b3b3b3;
    }
    
    body {
        background-color: var(--white);
        color: var(--dark-color);
    }
    
    .card,
    .form-control {
        background: var(--light-color);
        border-color: #333;
        color: var(--dark-color);
    }
}

/* Focus improvements for accessibility */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn:focus,
.form-control:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Skip link for screen readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Error states */
.error {
    border-color: var(--danger-color) !important;
}

.error-message {
    color: var(--danger-color);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* Success states */
.success {
    border-color: var(--success-color) !important;
}

.success-message {
    color: var(--success-color);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-color);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 4px;
}

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

/* Selection styles */
::selection {
    background: var(--primary-color);
    color: var(--white);
}

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