/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Corporate Color Palette - Light Mode */
    --primary-blue: #0056b3;
    --primary-light-blue: #3498db;
    --primary-dark-gray: #333333;
    --primary-light-gray: #f8f9fa;
    --primary-white: #ffffff;
    --secondary-green: #2ecc71;
    --secondary-orange: #e67e22;
    
    /* Light Mode Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --bg-header: rgba(255, 255, 255, 0.95);
    --bg-header-scrolled: rgba(255, 255, 255, 0.98);
    
    /* Light Mode Text Colors */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #888888;
    --text-white: #ffffff;
    
    /* Light Mode Border Colors */
    --border-light: #e0e0e0;
    --border-medium: #cccccc;
    --border-dark: #999999;
    
    /* Light Mode Shadow Colors */
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-dark: rgba(0, 0, 0, 0.2);
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-padding: 0 20px;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    /* Dark Mode Background Colors */
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-card: #1e1e1e;
    --bg-header: rgba(18, 18, 18, 0.95);
    --bg-header-scrolled: rgba(18, 18, 18, 0.98);
    
    /* Dark Mode Text Colors */
    --text-primary: #e0e0e0;
    --text-secondary: #aaaaaa;
    --text-light: #888888;
    --text-white: #ffffff;
    
    /* Dark Mode Border Colors */
    --border-light: #2a2a2a;
    --border-medium: #404040;
    --border-dark: #555555;
    
    /* Dark Mode Shadow Colors */
    --shadow-light: rgba(0, 0, 0, 0.3);
    --shadow-medium: rgba(0, 0, 0, 0.4);
    --shadow-dark: rgba(0, 0, 0, 0.5);
    
    /* Adjust brand colors for dark mode (slightly brighter for better contrast) */
    --primary-blue: #4a90e2;
    --primary-light-blue: #5ba3f5;
    --secondary-green: #4ecdc4;
    --secondary-orange: #ff8c42;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition), color var(--transition);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-light-blue));
    border-radius: 2px;
}

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

.text-center .section-title::after {
    left: 50%;
    transform: translateX(-50%);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    font-family: var(--font-heading);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-light-blue));
    color: var(--primary-white);
    box-shadow: 0 4px 15px rgba(0, 86, 179, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 86, 179, 0.4);
}

.btn-full {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--bg-header);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-light);
}

.header.scrolled {
    background: var(--bg-header-scrolled);
    box-shadow: 0 2px 20px var(--shadow-light);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary-blue);
    text-decoration: none;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

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

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

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

/* Theme Toggle Button */
.theme-toggle {
    display: flex;
    align-items: center;
    margin-left: 2rem;
}

.theme-toggle-btn {
    background: none;
    border: 2px solid var(--border-light);
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-primary);
}

.theme-toggle-btn:hover {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--text-white);
    transform: scale(1.1);
}

.theme-toggle-btn:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

#theme-icon {
    font-size: 1.2rem;
    transition: var(--transition);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-light-blue) 100%);
    color: var(--primary-white);
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.hero-visual {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 200px;
    height: 200px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 50%;
    right: 20%;
    animation-delay: 2s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 30%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* About Section */
.about {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-visual {
    position: relative;
    height: 400px;
    background: var(--bg-card);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px var(--shadow-light);
    overflow: hidden;
}

.about-visual i {
    font-size: 8rem;
    color: var(--primary-blue);
    z-index: 2;
}

.about-decorations {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.decoration {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--secondary-green), var(--secondary-orange));
    opacity: 0.1;
}

.decoration-1 {
    width: 100px;
    height: 100px;
    top: 20%;
    right: 20%;
}

.decoration-2 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 10%;
}

.about-text {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 10px;
    box-shadow: 0 5px 15px var(--shadow-light);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Products Section */
.products {
    padding: var(--section-padding);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px var(--shadow-medium);
}

.product-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-light-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.product-icon i {
    font-size: 2rem;
    color: var(--primary-white);
}

.product-title {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.product-description {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.product-features {
    list-style: none;
}

.product-features li {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.product-features i {
    color: var(--secondary-green);
    margin-right: 10px;
    font-size: 0.9rem;
}

/* Services Section */
.services {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 15px;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: var(--transition);
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-medium);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--secondary-green), var(--secondary-orange));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.service-icon i {
    font-size: 1.8rem;
    color: var(--primary-white);
}

.service-item h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--bg-card);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    flex-shrink: 0;
}

.contact-icon i {
    color: var(--primary-white);
    font-size: 1.2rem;
}

.contact-details h4 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.contact-map {
    margin-top: 2rem;
}

.map-placeholder {
    height: 200px;
    background: var(--bg-secondary);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    border: 2px dashed var(--border-medium);
}

.map-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
}

.footer-logo i {
    margin-right: 10px;
    font-size: 1.5rem;
    color: var(--primary-light-blue);
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-light-blue);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-light-blue);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-primary);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: 0 10px 27px var(--shadow-light);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

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

    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .theme-toggle {
        margin-left: 1rem;
    }

    .theme-toggle-btn {
        width: 40px;
        height: 40px;
    }

    #theme-icon {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

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

    .section-title {
        font-size: 1.8rem;
    }

    :root {
        --section-padding: 60px 0;
    }

    .theme-toggle {
        margin-left: 0.5rem;
    }

    .theme-toggle-btn {
        width: 35px;
        height: 35px;
    }

    #theme-icon {
        font-size: 0.9rem;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus,
input:focus,
textarea:focus,
.social-link:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-blue: #000080;
        --primary-dark-gray: #000000;
        --primary-white: #ffffff;
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .btn {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .section-title {
        font-size: 18pt;
        page-break-after: avoid;
    }
}