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

:root {
    --primary-color: #43658B;
    --primary-color-dark: #355070;
    --secondary-color: #1a1a1a;
    --text-color: #333;
    --text-light: #666;
    --bg-light: #f5f5f5;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 5px 20px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.logo img {
    height: 80px;
    width: auto;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    transition: all 0.3s ease;
}

.phone-icon {
    display: none;
    color: var(--primary-color);
    text-decoration: none;
    padding: 0.5rem;
    transition: color 0.3s ease;
    z-index: 1001;
}

.phone-icon:hover {
    color: var(--primary-color-dark);
}

.phone-icon svg {
    width: 24px;
    height: 24px;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    margin-top: 70px;
}

@media (max-width: 768px) {
    .hero {
        margin-top: 90px;
        height: calc(100vh - 90px);
        min-height: calc(100vh - 90px);
    }
}

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

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.7) 100%);
    z-index: 1;
}

.hero-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 2;
    text-align: center;
    color: var(--white);
    padding: 3rem 2rem;
    max-width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.4) 50%, transparent 100%);
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--white);
    text-transform: uppercase;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
}

.hero-company {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: 3px;
}

.hero-description {
    font-size: 1.2rem;
    line-height: 1.8;
    opacity: 1;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.8);
    font-weight: 500;
}

.hero-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
}

.hero-controls button {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid var(--white);
    color: var(--white);
    padding: 0.8rem 2rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.hero-controls button:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* Features Section */
.features {
    padding: 5rem 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
}

.cta-section {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--bg-light);
    border-radius: 10px;
    margin-top: 3rem;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.cta-button {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 3rem;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.cta-button:hover {
    background: var(--primary-color-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* Services Section */
.services {
    padding: 5rem 0;
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
    font-weight: 700;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

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

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.service-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

/* Corporate Section */
.corporate {
    padding: 5rem 0;
    background: var(--white);
}

.corporate-content {
    max-width: 900px;
    margin: 0 auto;
}

.corporate-section {
    margin-bottom: 4rem;
}

.corporate-section h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.corporate-section p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: var(--text-color);
}

.vision-items p {
    font-size: 1.2rem;
    font-style: italic;
    padding: 1rem;
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    margin-bottom: 1rem;
}

.mission-item,
.value-item {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 8px;
}

.mission-item h4,
.value-item h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
}

.mission-item p,
.value-item p {
    line-height: 1.8;
}

.highlight {
    background: #fff3cd;
    padding: 1.5rem;
    border-left: 4px solid var(--primary-color);
    font-weight: 600;
    border-radius: 5px;
}

/* Projects Section */
.projects {
    padding: 5rem 0;
    background: var(--bg-light);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    background: var(--white);
    border-radius: 10px;
    color: var(--text-light);
    font-size: 1.2rem;
}

.project-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    cursor: pointer;
}

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

.project-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s;
}

.lightbox.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    animation: zoomIn 0.3s;
    border-radius: 5px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 40px;
    color: var(--white);
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10001;
    transition: color 0.3s ease;
}

.lightbox-close:hover {
    color: var(--primary-color);
}

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

@keyframes zoomIn {
    from {
        transform: scale(0.8);
    }
    to {
        transform: scale(1);
    }
}

.project-card-content {
    padding: 1.5rem;
}

.project-card h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

/* Contact Section */
.contact {
    padding: 5rem 0;
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-image {
    grid-column: 1 / -1;
    margin-bottom: 2rem;
}

.contact-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.contact-item a {
    display: block;
    color: var(--text-color);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--primary-color);
}

.address-link {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-light);
    border-radius: 5px;
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

.address-link:hover {
    background: var(--primary-color);
    color: var(--white) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.address-link svg {
    flex-shrink: 0;
}

.contact-item p {
    margin-bottom: 0.5rem;
}

.contact-form {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 10px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

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

.submit-btn {
    width: 100%;
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: var(--primary-color-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

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

.footer-section h4 {
    margin-bottom: 1rem;
    color: #6b9bd4;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #6b9bd4;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: var(--shadow);
}

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

.scroll-top:hover {
    background: var(--primary-color-dark);
    transform: translateY(-5px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar {
        min-height: 90px;
    }

    .nav-wrapper {
        position: relative;
        justify-content: space-between;
        padding: 1rem 0;
        min-height: 90px;
    }

    .hamburger {
        display: flex !important;
        order: 1;
        flex: 0 0 auto;
    }

    .hamburger span {
        width: 30px;
        height: 4px;
    }

    .logo {
        order: 2;
        flex: 1;
        display: flex !important;
        justify-content: center;
        align-items: center;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        padding: 0 !important;
        margin: 0 !important;
        width: auto;
        height: 100%;
        z-index: 1;
    }

    .logo img {
        height: 80px;
        width: auto;
        padding: 0 !important;
        margin: 0 !important;
        display: block !important;
        max-width: 100%;
    }

    .phone-icon {
        display: block !important;
        order: 3;
        flex: 0 0 auto;
    }

    .phone-icon svg {
        width: 28px;
        height: 28px;
    }

    .nav-menu {
        display: none;
        position: fixed;
        top: 90px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        padding: 1.5rem;
        padding-top: 2rem;
        box-shadow: var(--shadow);
        z-index: 999;
        max-height: calc(100vh - 90px);
        overflow-y: auto;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        margin-bottom: 1rem;
    }

    .nav-menu a {
        font-size: 1.2rem;
        padding: 0.5rem 0;
    }

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

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

    .hero-company {
        font-size: 1.5rem;
    }

    .hero-description {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .hero-content {
        padding: 1.5rem 1rem;
    }

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

    .container {
        padding: 0 15px;
    }

    .features,
    .services,
    .corporate,
    .projects,
    .contact {
        padding: 3rem 0;
    }

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

    .contact-image {
        grid-column: 1;
        margin-bottom: 1.5rem;
    }

    .contact-image img {
        height: 250px;
    }

    .contact-info {
        gap: 1.5rem;
    }

    .contact-form {
        padding: 1.5rem;
    }

    .corporate-content {
        padding: 0;
    }

    .corporate-section {
        margin-bottom: 3rem;
    }

    .mission-item,
    .value-item {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

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

    .hero-controls {
        flex-direction: column;
        width: 90%;
    }

    .hero-controls button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

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

    .container {
        padding: 0 12px;
    }

    .features,
    .services,
    .corporate,
    .projects,
    .contact {
        padding: 2.5rem 0;
    }

    .hero-content {
        padding: 1rem 0.75rem;
    }

    .section-title {
        font-size: 1.75rem;
        margin-bottom: 1.5rem;
    }

    .nav-menu {
        padding: 1rem;
        padding-top: 1.5rem;
    }

    .contact-form {
        padding: 1rem;
    }

    .feature-card {
        padding: 1rem;
    }

    .mission-item,
    .value-item {
        padding: 0.75rem;
    }

    .lightbox-content {
        max-width: 95%;
        max-height: 85%;
    }

    .lightbox-close {
        top: 10px;
        right: 20px;
        font-size: 35px;
    }
}

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