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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.7;
    color: #1a1a1a;
    background-color: #ffffff;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #0a0a0a;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 4rem;
    font-weight: 300;
    letter-spacing: -0.03em;
}

h2 {
    font-size: 2.8rem;
    font-weight: 300;
}

h3 {
    font-size: 1.6rem;
    font-weight: 500;
}

p {
    margin-bottom: 1.5rem;
    color: #4a4a4a;
    font-size: 1.1rem;
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 16px 32px;
    text-decoration: none;
    border-radius: 0;
    font-weight: 400;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: #000000;
    color: #ffffff;
    border: 1px solid #000000;
}

.btn-primary:hover {
    background-color: #ffffff;
    color: #000000;
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
    background-color: transparent;
    color: #000000;
    border: 1px solid #000000;
}

.btn-secondary:hover {
    background-color: #000000;
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.btn-outline {
    background-color: transparent;
    color: #000000;
    border: 1px solid #e0e0e0;
}

.btn-outline:hover {
    background-color: #000000;
    color: #ffffff;
    border-color: #000000;
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* High-contrast button variants on dark backgrounds */
.hero .btn-primary,
.cta-section .btn-primary {
    background-color: #ffffff;
    color: #000000;
    border: 1px solid #ffffff;
}

.hero .btn-primary:hover,
.cta-section .btn-primary:hover {
    background-color: transparent;
    color: #ffffff;
    border-color: #ffffff;
}

.hero .btn-secondary,
.cta-section .btn-secondary {
    background-color: transparent;
    color: #ffffff;
    border: 1px solid #ffffff;
}

.hero .btn-secondary:hover,
.cta-section .btn-secondary:hover {
    background-color: #ffffff;
    color: #000000;
}

/* Navigation */
.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid #f0f0f0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo h2 {
    color: #000000;
    font-size: 1.4rem;
    margin: 0;
    font-weight: 300;
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-link {
    text-decoration: none;
    color: #4a4a4a;
    font-weight: 400;
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-link:hover,
.nav-link.active {
    color: #000000;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: #000000;
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('images/hero-construction.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #ffffff;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.6));
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: 0 40px;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 200;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: #ffffff;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    font-weight: 300;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: #ffffff;
}

.hero-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Features Section */
.features {
    padding: 120px 0;
    background-color: #ffffff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.feature-card {
    text-align: center;
    padding: 3rem 2rem;
    background: #ffffff;
    border: 1px solid #f0f0f0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: #e0e0e0;
}

.feature-icon {
    font-size: 2.5rem;
    color: #000000;
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.feature-card h3 {
    color: #000000;
    margin-bottom: 1.5rem;
    font-weight: 400;
    font-size: 1.3rem;
}

.feature-card p {
    color: #6a6a6a;
    font-size: 1rem;
    line-height: 1.6;
}

/* Stats Section */
.stats {
    padding: 100px 0;
    background-color: #000000;
    color: #ffffff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 3.5rem;
    font-weight: 200;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    color: #ffffff;
}

.stat-item p {
    font-size: 1rem;
    opacity: 0.8;
    font-weight: 300;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #ffffff;
}

/* Page Header */
.page-header {
    padding: 140px 0 100px;
    background: #f8f8f8;
    color: #000000;
    text-align: center;
    border-bottom: 1px solid #e0e0e0;
}

.page-header h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 200;
    letter-spacing: -0.02em;
}

.page-header p {
    font-size: 1.2rem;
    color: #6a6a6a;
    font-weight: 300;
    max-width: 600px;
    margin: 0 auto;
}

/* Company Story */
.company-story {
    padding: 120px 0;
    background-color: #ffffff;
}

.story-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.story-text h2 {
    color: #000000;
    margin-bottom: 2rem;
    font-weight: 300;
    font-size: 2.5rem;
}

.story-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: #4a4a4a;
}

.story-image img {
    width: 100%;
    border-radius: 0;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.4s ease;
}

.story-image img:hover {
    transform: scale(1.02);
}

/* Mission & Values */
.mission-values {
    padding: 120px 0;
    background-color: #f8f8f8;
}

.mission-content {
    text-align: center;
    margin-bottom: 6rem;
}

.mission-text h2 {
    color: #000000;
    margin-bottom: 2rem;
    font-weight: 300;
    font-size: 2.5rem;
}

.mission-text p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
    color: #4a4a4a;
    line-height: 1.7;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.value-card {
    background: white;
    padding: 3rem 2rem;
    border: 1px solid #f0f0f0;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: #e0e0e0;
}

.value-icon {
    font-size: 2.5rem;
    color: #000000;
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.value-card h3 {
    color: #000000;
    margin-bottom: 1.5rem;
    font-weight: 400;
    font-size: 1.3rem;
}

.value-card p {
    color: #6a6a6a;
    line-height: 1.6;
}

/* Team Section */
.team-section {
    padding: 80px 0;
}

.team-section h2 {
    text-align: center;
    color: #1f2937;
    margin-bottom: 3rem;
}

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

.team-member {
    text-align: center;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
}

.member-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1.5rem;
}

.member-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-member h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.position {
    color: #2563eb;
    font-weight: 500;
    margin-bottom: 1rem;
}

.bio {
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Certifications */
.certifications {
    padding: 80px 0;
    background-color: #f8fafc;
}

.certifications h2 {
    text-align: center;
    color: #1f2937;
    margin-bottom: 3rem;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.cert-item {
    text-align: center;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.cert-item:hover {
    transform: translateY(-5px);
}

.cert-item i {
    font-size: 3rem;
    color: #2563eb;
    margin-bottom: 1rem;
}

.cert-item h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

/* Services Section */
.services-section {
    padding: 120px 0;
    background-color: #ffffff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.service-card {
    background: white;
    border: 1px solid #f0f0f0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: #e0e0e0;
}

.service-image {
    height: 280px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.service-content {
    padding: 3rem 2.5rem;
}

.service-content h3 {
    color: #000000;
    margin-bottom: 1.5rem;
    font-weight: 400;
    font-size: 1.4rem;
}

.service-content p {
    color: #4a4a4a;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.service-features {
    list-style: none;
    margin: 2rem 0;
}

.service-features li {
    padding: 0.8rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #4a4a4a;
    font-size: 0.95rem;
}

.service-features i {
    color: #000000;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Process Section */
.process-section {
    padding: 80px 0;
    background-color: #f8fafc;
}

.process-section h2 {
    text-align: center;
    color: #1f2937;
    margin-bottom: 3rem;
}

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

.step {
    text-align: center;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: #2563eb;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step h3 {
    color: #1f2937;
    margin-bottom: 1rem;
}

/* Projects Section */
.projects-section {
    padding: 120px 0;
    background-color: #ffffff;
}

.filter-section {
    padding: 60px 0;
    background-color: #f8f8f8;
    border-bottom: 1px solid #e0e0e0;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 24px;
    background-color: transparent;
    border: 1px solid #e0e0e0;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 400;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: #4a4a4a;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: #000000;
    color: white;
    border-color: #000000;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    padding: 60px 0;
}

.project-card {
    background: white;
    border: 1px solid #f0f0f0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: #e0e0e0;
}

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

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.6));
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    opacity: 0;
    transition: opacity 0.4s ease;
    padding: 2rem;
}

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

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

.project-overlay h3 {
    margin-bottom: 1rem;
    font-weight: 400;
    font-size: 1.3rem;
}

.project-overlay p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
    font-size: 0.95rem;
}

.project-status {
    padding: 8px 16px;
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.project-status.completed {
    background-color: #000000;
    color: white;
}

.project-status.ongoing {
    background-color: #4a4a4a;
    color: white;
}

.project-info {
    padding: 2.5rem;
}

.project-info h3 {
    color: #000000;
    margin-bottom: 1rem;
    font-weight: 400;
    font-size: 1.3rem;
}

.project-location {
    color: #6a6a6a;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.project-year {
    color: #000000;
    font-weight: 400;
    font-size: 0.9rem;
}

/* Project Stats */
.project-stats {
    padding: 100px 0;
    background-color: #000000;
    color: #ffffff;
}

.project-stats .stat-item h3 {
    color: #ffffff;
}

.project-stats .stat-item p {
    color: #ffffff;
    opacity: 0.8;
}

/* Contact Section */
.contact-section {
    padding: 120px 0;
    background-color: #ffffff;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
}

.contact-info h2 {
    color: #000000;
    margin-bottom: 2rem;
    font-weight: 300;
    font-size: 2.5rem;
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 3rem;
    color: #4a4a4a;
    line-height: 1.7;
}

.contact-details {
    margin-bottom: 3rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background-color: #000000;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.contact-item:hover .contact-icon {
    background-color: #4a4a4a;
}

.contact-text h4 {
    color: #000000;
    margin-bottom: 0.8rem;
    font-weight: 400;
    font-size: 1.1rem;
}

.contact-text p {
    color: #6a6a6a;
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

.social-links h4 {
    color: #000000;
    margin-bottom: 1.5rem;
    font-weight: 400;
    font-size: 1.1rem;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 45px;
    height: 45px;
    background-color: #f0f0f0;
    color: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.social-link:hover {
    background-color: #000000;
    color: #ffffff;
    transform: translateY(-2px);
}

/* Contact Form */
.contact-form-container {
    background: white;
    padding: 3rem;
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.contact-form-container:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.contact-form h3 {
    color: #000000;
    margin-bottom: 2.5rem;
    text-align: center;
    font-weight: 300;
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.8rem;
    color: #000000;
    font-weight: 400;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 1px solid #e0e0e0;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: #fafafa;
    font-family: 'Inter', sans-serif;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #000000;
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
    line-height: 1.6;
}

/* Map Section */
.map-section {
    padding: 60px 0;
    background-color: #f8fafc;
}

.map-section h2 {
    text-align: center;
    color: #1f2937;
    margin-bottom: 2rem;
}

.map-container {
    max-width: 800px;
    margin: 0 auto;
}

.map-placeholder {
    height: 400px;
    background-color: #e5e7eb;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #6b7280;
    text-align: center;
}

.map-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
}

.faq-section h2 {
    text-align: center;
    color: #1f2937;
    margin-bottom: 3rem;
}

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

.faq-item {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.faq-item h4 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.faq-item p {
    color: #6b7280;
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 120px 0;
    background: #000000;
    color: #ffffff;
    text-align: center;
}

.cta-content h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    font-weight: 200;
    letter-spacing: -0.02em;
    color: #ffffff;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.8;
    font-weight: 300;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: #ffffff;
}

/* Footer */
.footer {
    background-color: #000000;
    color: #ffffff;
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3,
.footer-section h4 {
    color: #ffffff;
    margin-bottom: 1.5rem;
    font-weight: 300;
    font-size: 1.2rem;
    letter-spacing: 1px;
}

.footer-section p {
    color: #a0a0a0;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: #a0a0a0;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.footer-section ul li a:hover {
    color: #ffffff;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    width: 45px;
    height: 45px;
    background-color: #1a1a1a;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.social-links a:hover {
    background-color: #ffffff;
    color: #000000;
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid #1a1a1a;
    padding-top: 2rem;
    text-align: center;
    color: #6a6a6a;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

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

    .nav-menu li {
        margin: 1rem 0;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

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

    .filter-buttons {
        flex-direction: column;
        align-items: center;
    }

    .filter-btn {
        width: 200px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    .page-header h1 {
        font-size: 2.5rem;
    }

    .cta-content h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

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

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .feature-card,
    .service-card,
    .project-card {
        margin-bottom: 1rem;
    }
}

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

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

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

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Form Validation */
.form-group input:invalid,
.form-group select:invalid,
.form-group textarea:invalid {
    border-color: #ef4444;
}

.form-group input:valid,
.form-group select:valid,
.form-group textarea:valid {
    border-color: #10b981;
}