/**
 * Template Name: Ytronic
 * Template URI: https://github.com/elyonox/ytronic-php-website
 * Author: Yonox
 * Author URI: https://github.com/elyonox
 * Description: PHP Website designed for multipurpose objective.
 * Version: 4.0.0
 * License: GNU General Public License v3
 * License URI: http://www.gnu.org/licenses/gpl-2.0.html
 */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

/* Global Variables */
:root {
    /* Main Template Colors */
    --primary: #06A3DA;
    --secondary: #34AD54;
    --light: #EEF9FF;
    --dark: #091E3E;
    
    /* Construction Subdomain Colors */
    --primary-color-construction: #e67e22; /* Orange theme for construction */
    --secondary-color-construction: #2c3e50;
    --accent-color-construction: #f39c12;
    
    /* Home Subdomain Colors */
    --primary-color-home: #3498db;
    --secondary-color-home: #2c3e50;
    --accent-color-home: #e74c3c;
    
    /* Common Colors */
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --text-color: #333;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #3498db;
    --danger-color: #e74c3c;
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f5f5f5;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

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

/* Common Spacing Classes */
.my-6 {
    margin-top: 6rem;
    margin-bottom: 6rem
}
.py-6 {
    padding-top: 6rem;
    padding-bottom: 6rem
}


/******** Typography & Headings ********/
h1,
h2,
.fw-bold {
    font-weight: 800 !important;
}

h3,
h4,
.fw-semi-bold {
    font-weight: 700 !important;
}

h5,
h6,
.fw-medium {
    font-weight: 600 !important;
}

/******** Button Styles ********/
.btn {
    display: inline-block;
    padding: 12px 24px;
    font-family: 'Nunito', sans-serif;
    font-weight: 600;
    transition: .5s;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-transform: uppercase;
    font-size: 14px;
}

.btn:hover {
    background-color: var(--secondary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.btn-primary,
.btn-secondary {
    color: #FFFFFF;
    box-shadow: inset 0 0 0 50px transparent;
}

.btn-primary:hover {
    box-shadow: inset 0 0 0 0 var(--primary);
}

.btn-secondary:hover {
    box-shadow: inset 0 0 0 0 var(--secondary);
}

.btn-square {
    width: 36px;
    height: 36px;
}

.btn-sm-square {
    width: 30px;
    height: 30px;
}

.btn-lg-square {
    width: 48px;
    height: 48px;
}

.btn-square,
.btn-sm-square,
.btn-lg-square {
    padding-left: 0;
    padding-right: 0;
    text-align: center;
}


/******** Navigation Styles ********/
/* Common Navigation */
.navbar {
    background-color: var(--dark-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 20px;
}

.nav-links a {
    color: white;
    font-weight: 500;
    position: relative;
}

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

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

/* Ytronic Template Navbar */
.navbar-dark .navbar-nav .nav-link {
    font-family: 'Nunito', sans-serif;
    position: relative;
    margin-left: 25px;
    padding: 35px 0;
    color: #FFFFFF;
    font-size: 18px;
    font-weight: 600;
    outline: none;
    transition: .5s;
}

.sticky-top.navbar-dark .navbar-nav .nav-link {
    padding: 20px 0;
    color: var(--dark);
}

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

.navbar-dark .navbar-brand h1 {
    color: #FFFFFF;
}

.navbar-dark .navbar-toggler {
    color: var(--primary) !important;
    border-color: var(--primary) !important;
}

.navbar-dark {
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
    border-bottom: 1px solid rgba(256, 256, 256, .1);
    z-index: 999;
}

.sticky-top.navbar-dark {
    position: fixed;
    background: #FFFFFF;
}

.navbar-dark .navbar-nav .nav-link::before {
    position: absolute;
    content: "";
    width: 0;
    height: 2px;
    bottom: -1px;
    left: 50%;
    background: var(--primary);
    transition: .5s;
}

.navbar-dark .navbar-nav .nav-link:hover::before,
.navbar-dark .navbar-nav .nav-link.active::before {
    width: 100%;
    left: 0;
}

.navbar-dark .navbar-nav .nav-link.nav-contact::before {
    display: none;
}

.sticky-top.navbar-dark .navbar-brand h1 {
    color: var(--primary);
}

/* Mobile Navigation */
.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 5px;
    transition: all 0.3s ease;
}


/******** Section Styles ********/
/* Common Section Styling */
section {
    padding: 80px 0;
}

section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.5rem;
    position: relative;
    padding-bottom: 15px;
}

section h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background-color: var(--primary-color);
}

/* Section Title from Template */
.section-title::before {
    position: absolute;
    content: "";
    width: 150px;
    height: 5px;
    left: 0;
    bottom: 0;
    background: var(--primary);
    border-radius: 2px;
}

.section-title.text-center::before {
    left: 50%;
    margin-left: -75px;
}

.section-title.section-title-sm::before {
    width: 90px;
    height: 3px;
}

.section-title::after {
    position: absolute;
    content: "";
    width: 6px;
    height: 5px;
    bottom: 0px;
    background: #FFFFFF;
    -webkit-animation: section-title-run 5s infinite linear;
    animation: section-title-run 5s infinite linear;
}

.section-title.section-title-sm::after {
    width: 4px;
    height: 3px;
}

.section-title.text-center::after {
    -webkit-animation: section-title-run-center 5s infinite linear;
    animation: section-title-run-center 5s infinite linear;
}

.section-title.section-title-sm::after {
    -webkit-animation: section-title-run-sm 5s infinite linear;
    animation: section-title-run-sm 5s infinite linear;
}

@-webkit-keyframes section-title-run {
    0% {left: 0; } 50% { left : 145px; } 100% { left: 0; }
}

@-webkit-keyframes section-title-run-center {
    0% { left: 50%; margin-left: -75px; } 50% { left : 50%; margin-left: 45px; } 100% { left: 50%; margin-left: -75px; }
}

@-webkit-keyframes section-title-run-sm {
    0% {left: 0; } 50% { left : 85px; } 100% { left: 0; }
}


/******** Header Styles ********/
/* Common Header Styling */
.main-header,
.construction-header {
    height: 100vh;
    background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://via.placeholder.com/1920x1080');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    position: relative;
}

.header-overlay {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.main-header h1,
.construction-header h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 3px;
}

.main-header p,
.construction-header p {
    font-size: 1.5rem;
    margin-bottom: 30px;
    max-width: 800px;
}

.scroll-down {
    position: absolute;
    bottom: 50px;
    font-size: 2rem;
    cursor: pointer;
}


/******** Services and Features Sections ********/
/* Introduction Section */
.intro {
    background-color: white;
    text-align: center;
}

.intro p {
    max-width: 800px;
    margin: 0 auto 40px;
    font-size: 1.2rem;
}

/* Common Service Cards */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.service-card p {
    margin-bottom: 20px;
    color: #666;
}

/* Template Service Items */
.service-item {
    position: relative;
    height: 300px;
    padding: 0 30px;
    transition: .5s;
}

.service-item .service-icon {
    margin-bottom: 30px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: 2px;
    transform: rotate(-45deg);
}

.service-item .service-icon i {
    transform: rotate(45deg);
}

.service-item a.btn {
    position: absolute;
    width: 60px;
    bottom: -48px;
    left: 50%;
    margin-left: -30px;
    opacity: 0;
}

.service-item:hover a.btn {
    bottom: -24px;
    opacity: 1;
}

/* Construction Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-item {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border-top: 4px solid var(--primary-color-construction);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--primary-color-construction);
    background-color: rgba(230, 126, 34, 0.1);
    width: 100px;
    height: 100px;
    line-height: 100px;
    border-radius: 50%;
    margin: 0 auto 20px;
}

.feature-item h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.feature-item p {
    margin-bottom: 20px;
    color: #666;
}


/******** About and Expertise Sections ********/
/* About Section */
.about {
    background-color: var(--light-color);
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
    align-items: center;
}

.about-text h2 {
    text-align: left;
    margin-bottom: 30px;
}

.about-text h2:after {
    left: 0;
    transform: none;
}

.about-text ul {
    list-style: none;
}

.about-text li {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.about-text i {
    color: var(--success-color);
    margin-right: 10px;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Construction Services Tabs */
.construction-services {
    background-color: var(--light-color);
}

.services-tabs {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.tabs-navigation {
    display: flex;
    border-bottom: 1px solid #eee;
    background-color: var(--secondary-color-construction);
}

.tab-btn {
    padding: 15px 25px;
    background-color: transparent;
    border: none;
    color: white;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
}

.tab-btn.active {
    background-color: var(--primary-color-construction);
}

.tab-btn:hover {
    background-color: rgba(230, 126, 34, 0.7);
}

.tabs-content {
    padding: 30px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.tab-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: center;
}

.tab-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.tab-details h3 {
    margin-bottom: 20px;
    font-size: 1.8rem;
    color: var(--primary-color-construction);
}

.tab-details p {
    margin-bottom: 15px;
}

.tab-details ul {
    list-style: none;
    margin-bottom: 20px;
}

.tab-details li {
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
}

.tab-details li i {
    color: var(--success-color);
    margin-right: 10px;
    margin-top: 5px;
}


/******** Projects Gallery and Expertise ********/
/* Projects Gallery */
.projects {
    background-color: white;
    text-align: center;
}

.projects p {
    max-width: 800px;
    margin: 0 auto 40px;
}

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

.project-item {
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    height: 250px;
}

.project-image {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-item: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, 0, 0, 0.8) 0%, transparent 100%);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-start;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.project-overlay h3 {
    color: white;
    margin-bottom: 10px;
    font-size: 1.3rem;
    text-align: left;
}

.project-overlay p {
    color: #ddd;
    margin-bottom: 15px;
    font-size: 0.9rem;
    text-align: left;
}

.btn-details {
    background-color: var(--primary-color-construction);
    color: white;
    padding: 8px 15px;
    border-radius: 4px;
    font-size: 0.8rem;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

/* Expertise Section */
.expertise {
    background-color: var(--secondary-color-construction);
    color: white;
}

.expertise h2 {
    color: white;
}

.expertise h2:after {
    background-color: var(--primary-color-construction);
}

.expertise-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 50px;
    align-items: center;
}

.expertise-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.expertise-quote {
    font-style: italic;
    font-size: 1.2rem;
    padding-left: 20px;
    border-left: 4px solid var(--primary-color-construction);
    margin: 30px 0;
}

.expertise-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
}

/* Stats Container */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color-construction);
    margin-bottom: 10px;
    line-height: 1;
}

.stat-title {
    font-size: 1rem;
    font-weight: 500;
}


/******** CTA and Testimonials ********/
/* CTA Section */
.cta,
.construction-cta {
    background-image: linear-gradient(rgba(44, 62, 80, 0.9), rgba(44, 62, 80, 0.9)), url('https://via.placeholder.com/1920x500');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
}

.cta h2,
.construction-cta h2 {
    color: white;
}

.cta h2:after {
    background-color: white;
}

.construction-cta h2:after {
    background-color: var(--primary-color-construction);
}

.cta p,
.construction-cta p {
    margin-bottom: 40px;
    font-size: 1.2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-btn {
    padding: 15px 30px;
    background-color: var(--accent-color);
    color: white;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-btn:hover {
    background-color: white;
    color: var(--accent-color);
    transform: translateY(-5px);
}

.cta-btn-outline {
    background-color: transparent;
    border: 2px solid white;
}

.cta-btn-outline:hover {
    background-color: white;
    color: var(--primary-color-construction);
}

/* Testimonials Section */
.testimonials,
.construction-testimonials {
    background-color: white;
    overflow: hidden;
}

.testimonial {
    padding: 0 15px;
}

.testimonial-content {
    background-color: var(--light-color);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    position: relative;
}

.testimonial-content:before {
    content: '\201C';
    position: absolute;
    top: 0;
    left: 20px;
    font-size: 5rem;
    color: var(--primary-color);
    opacity: 0.2;
    line-height: 1;
}

.testimonial-content p {
    font-style: italic;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 15px;
    border: 3px solid var(--primary-color);
}

.testimonial-author h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.testimonial-author p {
    font-size: 0.9rem;
    margin: 0;
    color: #777;
    font-style: normal;
}


/******** Contact and Footer Styles ********/
/* Contact Section */
.contact {
    background-color: var(--light-color);
}

.contact-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

.contact-info {
    margin-bottom: 30px;
}

.contact-info h3 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.contact-item {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.contact-icon {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-right: 15px;
}

.contact-text {
    font-size: 1.1rem;
}

.contact-social {
    margin-top: 30px;
}

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-size: 1.2rem;
    transition: all 0.3s;
}

.social-link:hover {
    background-color: var(--accent-color);
    transform: translateY(-5px);
}

.contact-form {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.input-group input,
.input-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
}

.input-group textarea {
    height: 150px;
    resize: vertical;
}

.submit-btn {
    padding: 12px 25px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.submit-btn:hover {
    background-color: var(--accent-color);
}

/* Construction Contact Form */
.construction-contact {
    background-color: white;
}

.construction-form {
    background-color: var(--light-color-construction);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-top: 5px solid var(--primary-color-construction);
}

/* Footer Styles */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 0;
}

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

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

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

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: #aaa;
    transition: all 0.3s;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    color: #aaa;
}

.footer-contact-icon {
    color: var(--primary-color);
    margin-right: 10px;
    font-size: 1.2rem;
}

.copyright {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 20px 0;
    text-align: center;
    color: #aaa;
    font-size: 0.9rem;
}

/******** Responsive Styles ********/
@media (max-width: 1200px) {
    .container {
        max-width: 992px;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 768px;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .tab-grid {
        grid-template-columns: 1fr;
    }
    
    .tab-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 576px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .main-header h1,
    .construction-header h1 {
        font-size: 3rem;
    }
    
    .burger {
        display: block;
    }
    
    .nav-links {
        position: absolute;
        right: 0;
        top: 70px;
        background-color: var(--dark-color);
        width: 100%;
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        clip-path: circle(0px at 90% -10%);
        transition: all 0.5s ease-out;
        pointer-events: none;
    }
    
    .nav-links.active {
        clip-path: circle(1500px at 90% -10%);
        pointer-events: all;
    }
    
    .nav-links li {
        opacity: 0;
        margin: 15px 0;
    }
    
    .nav-links li:nth-child(1) {
        transition: all 0.5s ease 0.2s;
    }
    
    .nav-links li:nth-child(2) {
        transition: all 0.5s ease 0.4s;
    }
    
    .nav-links li:nth-child(3) {
        transition: all 0.5s ease 0.6s;
    }
    
    .nav-links li:nth-child(4) {
        transition: all 0.5s ease 0.8s;
    }
    
    .nav-links li:nth-child(5) {
        transition: all 0.5s ease 1s;
    }
    
    .nav-links.active li {
        opacity: 1;
    }
}

@media (max-width: 576px) {
    .container {
        max-width: 100%;
    }
    
    section {
        padding: 60px 0;
    }
    
    .main-header h1,
    .construction-header h1 {
        font-size: 2.5rem;
    }
    
    .main-header p,
    .construction-header p {
        font-size: 1.2rem;
    }
    
    .projects-gallery {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .footer-columns {
        grid-template-columns: 1fr;
    }
}