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

:root {
    --primary-bg: #F5F5F5;
    --text-dark: #333333;
    --text-light: #666666;
    --accent-black: #000000;
    --accent-teal: #4A7C7C;
    --white: #FFFFFF;
    --border-light: #E0E0E0;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--primary-bg);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    color: var(--accent-black);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.4rem; }

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

a:hover {
    color: var(--accent-black);
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 10px var(--shadow-light);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-black);
    letter-spacing: 2px;
}

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

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-teal);
    transition: width 0.3s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1002;
    position: relative;
    padding: 10px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--accent-black);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    margin-top: 60px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7), rgba(74, 124, 124, 0.5));
    filter: grayscale(50%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    padding: 0 20px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    font-weight: 300;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid transparent;
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-teal);
    color: var(--white);
    border-color: var(--accent-teal);
}

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

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

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

.btn-large {
    padding: 15px 40px;
    font-size: 1.1rem;
}

/* Sections */
.section {
    padding: 80px 0;
}

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

.section-title {
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent-teal);
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.2rem;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.service-card {
    background: var(--white);
    padding: 40px;
    text-align: center;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.service-icon {
    margin-bottom: 30px;
    color: var(--accent-teal);
}

.service-title {
    margin-bottom: 20px;
}

.service-description {
    color: var(--text-light);
    margin-bottom: 30px;
}

.service-link {
    font-weight: 500;
    display: inline-flex;
    align-items: center;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.project-card {
    background: var(--white);
    overflow: hidden;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: transform 0.3s ease;
}

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

.project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
    filter: grayscale(30%);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
    filter: grayscale(0%);
}

.project-placeholder {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--border-light);
    color: var(--text-light);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(74, 124, 124, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.project-link {
    color: var(--white);
    border: 2px solid var(--white);
    padding: 10px 20px;
}

.project-link:hover {
    background: var(--white);
    color: var(--accent-teal);
}

.project-info {
    padding: 30px;
}

.project-category {
    display: inline-block;
    padding: 5px 10px;
    background: var(--accent-teal);
    color: var(--white);
    font-size: 0.85rem;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.project-title {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.project-description {
    color: var(--text-light);
    line-height: 1.6;
}

/* Gallery Carousel Section */
.gallery-section {
    background: var(--light-bg);
}

.gallery-carousel {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.carousel-container {
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 10px 30px var(--shadow-light);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.carousel-slide {
    min-width: 100%;
    position: relative;
}

.gallery-image {
    position: relative;
    height: 500px;
    overflow: hidden;
}

.gallery-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: var(--white);
    padding: 40px 30px 30px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.carousel-slide:hover .image-overlay {
    transform: translateY(0);
}

.carousel-slide:hover .gallery-image img {
    transform: scale(1.05);
}

.image-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 10px;
    font-family: 'Montserrat', sans-serif;
}

.image-description {
    font-size: 1rem;
    line-height: 1.5;
    opacity: 0.9;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.9);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    color: var(--accent-teal);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
}

.carousel-btn:hover {
    background: var(--white);
    transform: translateY(-50%) scale(1.1);
}

.carousel-prev {
    left: 20px;
}

.carousel-next {
    right: 20px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ccc;
    cursor: pointer;
    transition: background 0.3s ease;
}

.carousel-dot.active {
    background: var(--accent-teal);
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .gallery-image {
        height: 300px;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
    }
    
    .carousel-prev {
        left: 10px;
    }
    
    .carousel-next {
        right: 10px;
    }
    
    .image-overlay {
        padding: 20px 15px 15px;
    }
    
    .image-title {
        font-size: 1.4rem;
    }
}

/* CTA Section */
.cta-section {
    background: var(--accent-teal);
    color: var(--white);
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    color: var(--white);
    margin-bottom: 20px;
}

.cta-subtitle {
    font-size: 1.2rem;
    margin-bottom: 40px;
}

/* Contact Form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

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

.form-group input,
.form-group textarea {
    padding: 12px;
    border: 1px solid var(--border-light);
    background: var(--white);
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-teal);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item h3 {
    margin-bottom: 10px;
    color: var(--accent-teal);
}

/* Map */
.map-container {
    height: 450px;
    filter: grayscale(50%);
    transition: filter 0.3s ease;
}

.map-container:hover {
    filter: grayscale(0%);
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--accent-black), var(--accent-teal));
    color: var(--white);
    padding: 120px 0 80px;
    text-align: center;
    margin-top: 60px;
}

.page-title {
    color: var(--white);
    margin-bottom: 20px;
}

.page-subtitle {
    font-size: 1.2rem;
}

/* Footer */
.footer {
    background: var(--accent-black);
    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 h3,
.footer-section h4 {
    color: var(--white);
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--white);
    opacity: 0.8;
}

.footer-links a:hover {
    opacity: 1;
}

.contact-info {
    list-style: none;
}

.contact-info li {
    margin-bottom: 10px;
    opacity: 0.8;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-teal);
    color: var(--white);
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.social-links a:hover {
    transform: scale(1.1);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

/* Flash Messages */
.flash-messages {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 2000;
}

.alert {
    padding: 15px 20px;
    margin-bottom: 10px;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: slideIn 0.3s ease;
}

.alert-success {
    background: #4CAF50;
    color: white;
}

.alert-warning {
    background: #FFC107;
    color: #333;
}

.alert-danger {
    background: #F44336;
    color: white;
}

.alert-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.5rem;
    cursor: pointer;
}

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

@keyframes slideIn {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 1s ease;
}

.fade-in-delay {
    animation: fadeIn 1s ease 0.3s both;
}

.fade-in-delay-2 {
    animation: fadeIn 1s ease 0.6s both;
}

.fade-in-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* Service Detail Page */
.service-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.service-detail.reverse {
    direction: rtl;
}

.service-detail.reverse > * {
    direction: ltr;
}

.service-content h2 {
    margin-bottom: 30px;
}

.service-desc {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.service-features {
    list-style: none;
    margin-bottom: 30px;
}

.service-features li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-teal);
    font-weight: bold;
}

.service-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    filter: grayscale(30%);
    transition: filter 0.3s ease;
}

.service-image:hover {
    filter: grayscale(0%);
}

/* Process Section */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.process-step {
    text-align: center;
    padding: 30px;
}

.step-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-teal);
    margin-bottom: 20px;
    font-family: 'Montserrat', sans-serif;
}

.process-step h3 {
    margin-bottom: 15px;
}

.process-step p {
    color: var(--text-light);
}

/* Values Grid */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.value-card {
    background: var(--white);
    padding: 40px;
    text-align: center;
    box-shadow: 0 5px 20px var(--shadow-light);
}

.value-card h3 {
    margin-bottom: 20px;
    color: var(--accent-teal);
}

/* Project Filters */
.project-filters {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    background: transparent;
    border: 2px solid var(--accent-teal);
    color: var(--accent-teal);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    text-transform: uppercase;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--accent-teal);
    color: var(--white);
}

/* Project Detail */
.project-detail-content {
    max-width: 1000px;
    margin: 0 auto;
}

.project-main-image {
    margin-bottom: 40px;
}

.project-main-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.project-description {
    margin-bottom: 60px;
}

.project-description h2 {
    margin-bottom: 30px;
}

.project-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
}

.project-gallery h3 {
    margin-bottom: 30px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 60px;
}

.gallery-item {
    overflow: hidden;
    cursor: pointer;
}

.gallery-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.project-navigation {
    display: flex;
    justify-content: space-between;
    padding-top: 40px;
    border-top: 1px solid var(--border-light);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 3000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    margin-top: 2%;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 40px;
    color: var(--white);
    font-size: 40px;
    cursor: pointer;
}

.modal-close:hover {
    color: var(--accent-teal);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.no-content {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
    font-size: 1.2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 60px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px var(--shadow-light);
        padding: 20px 0;
        z-index: 1000;
    }

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

    .nav-toggle {
        display: flex;
    }

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

    .hero-subtitle {
        font-size: 1.2rem;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.4rem; }

    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

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

    .service-detail {
        grid-template-columns: 1fr;
    }

    .service-detail.reverse {
        direction: ltr;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .project-navigation {
        flex-direction: column;
        gap: 20px;
    }
}