/* ===================================
   ACTUAE - Modern Website Styles
   Anti-Corrosion Technology Specialists
   =================================== */

/* ==================== CSS VARIABLES ==================== */
:root {
    /* ACT Brand Colors */
    --primary-color: #003366;        /* Deep Navy Blue */
    --secondary-color: #0066cc;      /* Bright Blue */
    --accent-color: #00a8e8;         /* Light Blue */
    --dark-blue: #001a33;            /* Darker Navy */
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --text-gray: #6c757d;
    --dark-gray: #343a40;
    --black: #000000;
    
    /* Status Colors */
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Poppins', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(0, 51, 102, 0.1);
    --shadow-md: 0 5px 20px rgba(0, 51, 102, 0.15);
    --shadow-lg: 0 10px 40px rgba(0, 51, 102, 0.2);
}

/* ==================== GLOBAL STYLES ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--dark-gray);
    line-height: 1.7;
    overflow-x: hidden;
    background-color: var(--white);
}

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

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

ul {
    list-style: none;
}

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

/* ==================== SECTION HEADERS ==================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
    line-height: 1.2;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-large {
    padding: 16px 40px;
    font-size: 1.125rem;
}

/* ==================== NAVIGATION ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 51, 102, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(0, 26, 51, 0.98);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-img {
    height: 50px;
    width: auto;
    transition: var(--transition-fast);
}

.navbar.scrolled .logo-img {
    height: 40px;
}

.nav-menu {
    display: flex;
    gap: 35px;
    align-items: center;
}

.nav-link {
    color: var(--white);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 5px 0;
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: var(--transition-fast);
}

/* ==================== HERO SECTION ==================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    background: linear-gradient(135deg, var(--dark-blue), var(--primary-color));
    background-image: 
        linear-gradient(135deg, rgba(0, 26, 51, 0.9), rgba(0, 51, 102, 0.85)),
        url('https://actuae.ae/wp-content/uploads/2021/03/6.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    color: var(--white);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 26, 51, 0.85), rgba(0, 102, 204, 0.6));
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--accent-color);
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    max-width: 700px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 50px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.stat-item i {
    font-size: 2.5rem;
    color: var(--accent-color);
}

.stat-content h3 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-content p {
    font-size: 0.875rem;
    opacity: 0.9;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-indicator a {
    display: block;
    color: var(--white);
    font-size: 2rem;
    animation: bounce 2s infinite;
}

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

/* ==================== ABOUT SECTION ==================== */
.about {
    padding: var(--section-padding);
    background: var(--white);
}

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

.about-text .lead {
    font-size: 1.25rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-gray);
}

.about-highlights {
    margin-top: 30px;
    display: grid;
    gap: 15px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--light-gray);
    border-radius: 10px;
    transition: var(--transition-fast);
}

.highlight-item:hover {
    background: var(--medium-gray);
    transform: translateX(10px);
}

.highlight-item i {
    color: var(--secondary-color);
    font-size: 1.5rem;
}

.about-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    transition: var(--transition-medium);
}

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

.about-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(to top, rgba(0, 51, 102, 0.95), transparent);
    color: var(--white);
}

.about-image-overlay h3 {
    font-size: 1.5rem;
    font-family: var(--font-heading);
}

/* ==================== SERVICES SECTION ==================== */
.services {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--light-gray), var(--white));
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    border-top: 4px solid var(--secondary-color);
}

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

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.service-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-gray);
    margin-bottom: 20px;
    line-height: 1.8;
}

.service-features {
    display: grid;
    gap: 10px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--dark-gray);
    font-size: 0.95rem;
}

.service-features i {
    color: var(--success);
    font-size: 0.875rem;
}

/* ==================== CAPABILITIES SECTION ==================== */
.capabilities {
    padding: var(--section-padding);
    background: var(--white);
}

.capability-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.capability-card {
    background: linear-gradient(135deg, var(--primary-color), var(--dark-blue));
    color: var(--white);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.capability-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transition: var(--transition-medium);
}

.capability-card:hover::before {
    transform: rotate(180deg);
}

.capability-card:hover {
    transform: translateY(-10px);
}

.capability-icon {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    position: relative;
}

.capability-icon i {
    font-size: 3rem;
}

.capability-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.capability-details p {
    margin-bottom: 15px;
    font-size: 1.125rem;
}

.capability-details ul {
    text-align: left;
    display: grid;
    gap: 10px;
}

.capability-details li {
    padding-left: 25px;
    position: relative;
    font-size: 0.95rem;
    opacity: 0.9;
}

.capability-details li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

/* Clients Section */
.clients-section {
    background: var(--light-gray);
    padding: 60px;
    border-radius: 20px;
    text-align: center;
}

.clients-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 40px;
}

.clients-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.client-logo {
    background: var(--white);
    padding: 20px 40px;
    border-radius: 10px;
    font-weight: 600;
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

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

/* ==================== PROJECTS SECTION ==================== */
.projects {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--white), var(--light-gray));
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

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

.project-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-medium);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 51, 102, 0.95), transparent);
    display: flex;
    align-items: flex-end;
    padding: 30px;
    opacity: 0;
    transition: var(--transition-fast);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-info {
    color: var(--white);
}

.project-info h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.project-info p {
    font-size: 0.95rem;
    opacity: 0.95;
}

.project-details {
    padding: 20px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.project-tag {
    padding: 8px 16px;
    background: var(--light-gray);
    color: var(--secondary-color);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

/* ==================== CERTIFICATIONS SECTION ==================== */
.certifications {
    padding: var(--section-padding);
    background: var(--primary-color);
    color: var(--white);
}

.certifications .section-label {
    color: var(--accent-color);
}

.certifications .section-title {
    color: var(--white);
}

.certifications .section-description {
    color: rgba(255, 255, 255, 0.9);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.cert-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-fast);
}

.cert-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-10px);
    border-color: var(--accent-color);
}

.cert-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.cert-icon i {
    font-size: 2.5rem;
    color: var(--accent-color);
}

.cert-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.cert-card p {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* ==================== CONTACT SECTION ==================== */
.contact {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.contact-info p {
    color: var(--text-gray);
    margin-bottom: 40px;
    line-height: 1.8;
}

.info-items {
    display: grid;
    gap: 25px;
}

.info-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.info-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-icon i {
    color: var(--white);
    font-size: 1.25rem;
}

.info-content h4 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 5px;
}

.info-content p {
    color: var(--text-gray);
    margin: 0;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: grid;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px;
    border: 2px solid var(--medium-gray);
    border-radius: 10px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-message {
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    display: block;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    display: block;
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--dark-blue);
    color: var(--white);
    padding: 60px 0 30px;
}

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

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: 20px;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

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

.footer-col h4 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.footer-col ul {
    display: grid;
    gap: 12px;
}

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

.footer-col li:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-col li i {
    margin-right: 10px;
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
}

/* ==================== SCROLL TO TOP ==================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 968px) {
    /* Typography */
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    /* Navigation */
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 350px;
        height: 100vh;
        background: var(--dark-blue);
        flex-direction: column;
        padding: 80px 40px;
        gap: 25px;
        transition: var(--transition-fast);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        font-size: 1.125rem;
    }
    
    /* Hero */
    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }
    
    /* About */
    .about-content {
        grid-template-columns: 1fr;
    }
    
    /* Contact */
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    /* Typography */
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    /* Spacing */
    :root {
        --section-padding: 60px 0;
    }
    
    /* Services */
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    /* Projects */
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    /* Capabilities */
    .capability-grid {
        grid-template-columns: 1fr;
    }
    
    /* Certifications */
    .certifications-grid {
        grid-template-columns: 1fr;
    }
    
    /* Buttons */
    .btn {
        width: 100%;
        justify-content: center;
    }
}

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

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

/* Loading Animation */
.loading {
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}