:root {
    --primary: #17a2b8;
    --primary-dark: #138496;
    --secondary: #20c997;
    --accent: #5dd3c0;
    --teal: #17a2b8;
    --teal-dark: #0d7c8f;
    --teal-light: #5dd3c0;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --text: #334155;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', sans-serif;
    color: var(--text);
    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: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.logo img {
    height: 80px;
    transition: transform 0.3s ease;
}

.logo:hover img {
    transform: scale(1.05);
}

.logo-text {
    font-family: 'Urbanist', sans-serif;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: -0.5px;
    margin-left: 1rem;
    text-decoration:none;
}

.logo-text span {
    color: var(--accent);text-decoration:none;
}
.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

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

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

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

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
    min-width: 250px;
    padding: 1rem 0;
    margin-top: 0.5rem;
    animation: fadeIn 0.3s ease;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text);
    text-decoration: none;
    transition: all 0.3s ease;
}

.dropdown-content a:hover {
    background: var(--light);
    color: var(--primary);
    padding-left: 2rem;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(23, 162, 184, 0.70), rgba(13, 124, 143, 0.70)), 
                url('images/prefabricated_STP-04.jpeg') center/cover no-repeat;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(23, 162, 184, 0.3) 0%, rgba(32, 201, 151, 0.2) 50%, rgba(93, 211, 192, 0.3) 100%);
    z-index: 0;
}

.hero-background::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(23, 162, 184, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: move 20s linear infinite;
}

@keyframes move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.title-line {
    display: block;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.title-line:nth-child(1) { animation-delay: 0.2s; }
.title-line:nth-child(2) { animation-delay: 0.4s; color: var(--teal-light); }
.title-line:nth-child(3) { animation-delay: 0.6s; }

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.8s forwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease 1s forwards;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-line {
    width: 2px;
    height: 50px;
    background: var(--teal-light);
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% { transform: translateY(0); opacity: 0; }
    50% { opacity: 1; }
}

/* Stats Banner */
.stats-banner {
    background: var(--teal);
    padding: 3rem 0;
    margin-top: -1px;
}

.stats-banner-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    text-align: center;
}

.stat-banner-item {
    color: var(--white);
}

.stat-banner-number {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.stat-banner-label {
    font-size: 1.125rem;
    opacity: 0.95;
    font-weight: 500;
}

@media (max-width: 768px) {
    .stats-banner-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .stat-banner-number {
        font-size: 2.5rem;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

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

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

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--teal-dark), var(--teal));
    color: var(--white);
    padding: 6rem 0 4rem;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.page-header p {
    font-size: 1.25rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.2s;
    animation-fill-mode: both;
}

/* Sections */
section {
    padding: 5rem 0;
}

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

.section-header.centered {
    text-align: center;
}

.section-tag {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    color: var(--dark);
    font-weight: 700;
}

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text {
    font-size: 1.125rem;
    line-height: 1.8;
}

.mission-box {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.mission-box h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.mission-box p {
    margin-bottom: 1rem;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

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

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

/* Technologies */
.technologies-section {
    background: var(--dark);
    color: var(--white);
}

.technologies-section .section-tag {
    color: var(--teal-light);
}

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

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.tech-card {
    background: var(--dark-light);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--teal-light);
    transition: all 0.3s ease;
}

.tech-card:hover {
    background: var(--teal-dark);
    transform: translateX(5px);
}

.tech-card h3 {
    color: var(--teal-light);
    margin-bottom: 0.5rem;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

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

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

.service-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    color: var(--white);
    padding: 2rem;
}

.service-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

/* Clients Section */
.clients-section {
    background: var(--light);
}

.clients-content {
    display: grid;
    gap: 3rem;
}

.clients-table-container {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.clients-subtitle {
    color: var(--primary);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.clients-table {
    display: grid;
    gap: 1px;
    background: #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
}

.table-header,
.table-row {
    display: grid;
    grid-template-columns: 80px 1fr 1fr;
    background: var(--white);
}

.table-header {
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
}

.table-cell {
    padding: 1rem;
}

.table-row:hover {
    background: var(--light);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray);
    font-size: 1rem;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--teal), var(--teal-light));
    color: var(--white);
    text-align: center;
    padding: 5rem 0;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-section .btn-primary {
    background: var(--white);
    color: var(--teal);
}

.cta-section .btn-primary:hover {
    background: var(--light);
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.contact-info {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    height: fit-content;
}

.contact-info h2 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.info-item {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.info-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light);
    border-radius: 8px;
}

.info-item h4 {
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.info-item p {
    color: var(--gray);
}

/* Contact Form */
.contact-form-container {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.contact-form {
    display: grid;
    gap: 1.5rem;
}

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

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.form-group input,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.form-message {
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    display: none;
}

.form-message.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
    display: block;
}

.form-message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
    display: block;
}

.loader {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Map Section */
.map-section {
    text-align: center;
}

.map-section h2 {
    color: var(--primary);
    margin-bottom: 2rem;
}

.map-placeholder {
    background: var(--light);
    padding: 4rem;
    border-radius: 12px;
    font-size: 2rem;
}

/* Service Detail Page */
.service-detail {
    background: var(--light);
}

.service-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
}

.service-image {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

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

.service-description ul {
    list-style: none;
    margin-top: 1rem;
}

.service-description li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

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

/* Footer */
.footer {
    background: var(--dark);
    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 {
    color: var(--teal-light);
    margin-bottom: 1rem;
}

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

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

.footer-section a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section a:hover {
    opacity: 1;
    color: var(--teal-light);
}

.footer-logo {
    height: 40px;
    margin-bottom: 1rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    opacity: 0.6;
}

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

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-content,
    .contact-grid,
    .service-hero {
        grid-template-columns: 1fr;
    }
    
    .table-header,
    .table-row {
        grid-template-columns: 60px 1fr 1fr;
        font-size: 0.875rem;
    }
    
    .table-cell {
        padding: 0.75rem 0.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .table-header,
    .table-row {
        grid-template-columns: 50px 1fr;
    }
    
    .table-cell:last-child {
        display: none;
    }
}