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

:root {
    --primary-color: #0066cc;
    --secondary-color: #00a8e8;
    --accent-color: #ffc107;
    --dark-color: #1a1a1a;
    --light-color: #f5f5f5;
    --white: #ffffff;
    --text-color: #333333;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 5px 20px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

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

/* Header and Navigation */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    padding: 0.7rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: nowrap;
}

.logo {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
}

.logo div {
    margin: 0;
    font-size: 1.4rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.8rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    font-size: 0.95rem;
    padding: 0 0.5rem;
}

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

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

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

.nav-phone a {
    color: var(--white);
    background-color: var(--primary-color);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    display: inline-block;
    margin: 0;
    white-space: nowrap;
}

.nav-phone a:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px 0;
    transition: 0.3s;
}

/* Page Hero Section */
.page-hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 20px;
    color: var(--white);
    min-height: 300px;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.page-hero .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.6) 0%, rgba(0, 168, 232, 0.6) 100%);
    z-index: 1;
}

.page-hero .hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.page-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.page-hero p {
    font-size: 1.2rem;
    opacity: 0.95;
}

/* Services Page */
.services-page {
    padding: 5rem 20px;
    background-color: var(--light-color);
}

/* Air Conditioners Page */
.airconditioners-page {
    padding: 5rem 20px;
    background-color: var(--white);
}

/* Projects Page */
.projects-page {
    padding: 5rem 20px;
    background-color: var(--light-color);
}

/* Maintenance Page */
.maintenance-page {
    padding: 5rem 20px;
    background-color: var(--white);
}

.maintenance-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
    margin-top: 2rem;
}

.maintenance-text h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 1rem;
}

.maintenance-text h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.maintenance-text p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.8;
}

.maintenance-list,
.maintenance-schedule,
.maintenance-checklist {
    list-style: none;
    margin: 1.5rem 0;
}

.maintenance-list li,
.maintenance-schedule li,
.maintenance-checklist li {
    padding: 0.8rem;
    margin-bottom: 0.5rem;
    background-color: var(--light-color);
    border-left: 4px solid var(--secondary-color);
    border-radius: 5px;
    color: #555;
}

.maintenance-schedule li strong {
    color: var(--primary-color);
}

.maintenance-images {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.maintenance-image-card {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.maintenance-image-card img {
    width: 100%;
    height: auto;
    display: block;
}

.maintenance-image-card p {
    padding: 1rem;
    background-color: var(--light-color);
    text-align: center;
    color: #555;
    font-weight: 600;
    margin: 0;
}

.maintenance-tips {
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 2px solid var(--border-color);
}

.maintenance-tips h2 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 2rem;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 2rem;
}

.tip-card {
    background-color: var(--light-color);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border-top: 4px solid var(--secondary-color);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.tip-card h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.tip-card p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* FAQ Page */
.faq-page {
    padding: 5rem 20px;
    background-color: var(--light-color);
}

.faq-page .faq-container {
    max-width: 800px;
    margin: 2rem auto 0;
}

/* Service CTA Section */
.service-cta {
    padding: 3rem 20px;
    background: linear-gradient(135deg, #0066cc 0%, #00a8e8 100%);
    text-align: center;
    color: var(--white);
}

.service-cta h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.service-cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

 .cta-button {
    background-color: var(--accent-color);
    color: var(--dark-color);
    padding: 1rem 2.5rem;
    margin-top: 1rem;
    text-decoration: none;
}

.ac-price,
.service-price {
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: bold;
    margin-top: 1rem;
}

/* Hero Section */
.hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 20px;
    color: var(--white);
    min-height: 600px;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.3) 0%, rgba(0, 168, 232, 0.3) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* CTA Button */
.cta-button {
    background-color: var(--accent-color);
    color: var(--dark-color);
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.cta-button:hover {
    background-color: #ffb300;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Services Section */
.services {
    padding: 5rem 20px;
    background-color: var(--light-color);
}

.services h2,
.airconditioners h2,
.maintenance h2,
.faq h2,
.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-color);
    position: relative;
    display: inline-block;
    width: 100%;
}

.services h2::after,
.airconditioners h2::after,
.maintenance h2::after,
.faq h2::after,
.contact h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, #0066cc, #00a8e8);
    border-radius: 2px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.service-card {
    background-color: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.service-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background-color: var(--border-color);
}

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

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

.service-content {
    padding: 2rem;
}

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

.service-content p {
    color: #666;
    margin-bottom: 1rem;
}

.service-content ul {
    list-style: none;
    margin-left: 0;
}

.service-content li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: #555;
}

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

/* Air Conditioners Section */
.airconditioners {
    padding: 5rem 20px;
    background-color: var(--white);
}

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

.ac-card {
    background-color: var(--light-color);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.ac-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.ac-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background-color: var(--border-color);
}

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

.ac-card:hover .ac-image img {
    transform: scale(1.08);
}

.ac-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.ac-content h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}

.ac-type {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.ac-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background-color: var(--white);
    border-radius: 10px;
    border-left: 4px solid var(--secondary-color);
}

.ac-features span {
    font-size: 0.95rem;
    color: #555;
}

.ac-description {
    color: #666;
    font-size: 0.95rem;
    flex-grow: 1;
}

/* Projects Section */
.projects {
    padding: 5rem 20px;
    background-color: var(--white);
}

.projects h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-color);
    position: relative;
    display: inline-block;
    width: 100%;
}

.projects h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, #0066cc, #00a8e8);
    border-radius: 2px;
}

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

.project-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: var(--white);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    flex-shrink: 0;
}

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

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

.project-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-content h3 {
    color: var(--dark-color);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.project-type {
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
    letter-spacing: 1px;
}

.project-description {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 1.2rem;
    flex-grow: 1;
}

.view-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.view-link:hover {
    color: var(--secondary-color);
    transform: translateX(3px);
}

.projects-cta {
    text-align: center;
    margin-top: 3rem;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.9) 0%, rgba(0, 168, 232, 0.9) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 2rem;
    text-align: center;
}

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

.project-overlay p {
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.4;
}

/* Maintenance Section */
.maintenance {
    padding: 5rem 20px;
    background-color: var(--light-color);
}

.maintenance-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-top: 2rem;
}

.maintenance-text h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.maintenance-text p {
    color: #666;
    margin-bottom: 1.5rem;
}

.maintenance-list {
    list-style: none;
    margin: 1.5rem 0;
}

.maintenance-list li {
    padding: 0.7rem 0;
    color: #555;
    font-weight: 500;
}

.maintenance-text h4 {
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.maintenance-schedule {
    list-style: none;
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.maintenance-schedule li {
    padding: 0.8rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: #555;
}

.maintenance-schedule li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.maintenance-images {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.maintenance-images img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.maintenance-images img:hover {
    transform: scale(1.02);
}

/* FAQ Section */
.faq {
    padding: 5rem 20px;
    background-color: var(--white);
}

.faq-container {
    max-width: 800px;
    margin: 2rem auto 0;
}

.faq-item {
    margin-bottom: 1.5rem;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background-color: var(--white);
    border: 2px solid var(--border-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.faq-question:hover {
    background-color: var(--light-color);
    border-color: var(--primary-color);
}

.faq-question.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.faq-icon {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.faq-question.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background-color: var(--light-color);
}

.faq-answer.active {
    max-height: 500px;
    padding: 1.5rem;
}

.faq-answer p {
    color: #666;
    line-height: 1.8;
}

/* Project Detail Page */
.project-detail {
    padding: 3rem 20px;
    background-color: var(--light-color);
    min-height: 80vh;
}

.back-button {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0.7rem 1.5rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

.back-button:hover {
    background-color: var(--secondary-color);
    transform: translateX(-3px);
}

.project-detail-content {
    background-color: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.project-header {
    background: linear-gradient(135deg, #0066cc 0%, #00a8e8 100%);
    color: var(--white);
    padding: 3rem 2rem;
    text-align: center;
}

.project-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.project-meta {
    font-size: 1.1rem;
    opacity: 0.9;
}

.project-body {
    padding: 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.project-image-large {
    width: 100%;
    height: 400px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.project-info h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.project-info h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.project-info p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.project-features {
    list-style: none;
    margin: 1.5rem 0;
}

.project-features li {
    padding: 0.8rem;
    margin-bottom: 0.5rem;
    background-color: var(--light-color);
    border-left: 4px solid var(--secondary-color);
    border-radius: 5px;
    color: #555;
}

.project-contact {
    margin-top: 2rem;
    padding: 2rem;
    background-color: var(--light-color);
    border-radius: 10px;
    border-left: 4px solid var(--accent-color);
}

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

.project-contact p {
    color: #666;
    margin-bottom: 1.5rem;
}

.project-contact .cta-button {
    margin-top: 1rem;
}

/* Contact Section */
.contact {
    padding: 5rem 20px;
    background-color: var(--light-color);
}

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

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

.contact-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    border-left: 5px solid var(--primary-color);
    transition: all 0.3s ease;
}

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

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

.contact-card p {
    color: #666;
    margin-bottom: 0.5rem;
}

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

.contact-card a:hover {
    color: var(--secondary-color);
}

.contact-form {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.8rem;
    margin-bottom: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.contact-form textarea {
    resize: vertical;
}

.contact-form button {
    width: 100%;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #0066cc 0%, #00a8e8 100%);
    color: var(--white);
    padding: 3rem 20px 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section p {
    opacity: 0.9;
    line-height: 1.8;
}

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

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

.footer-section a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.footer-section a:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
    /* Page Hero */
    .page-hero {
        padding: 3rem 20px;
        min-height: 200px;
    }

    .page-hero h1 {
        font-size: 1.8rem;
    }

    .page-hero p {
        font-size: 1rem;
    }

    /* Grid Layouts */
    .maintenance-grid {
        grid-template-columns: 1fr;
    }

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

    /* Service CTA */
    .service-cta h2 {
        font-size: 1.5rem;
    }

    .service-cta p {
        font-size: 1rem;
    }

    .hamburger {
        display: flex;
    }

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

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

    .nav-link {
        display: block;
        padding: 1rem 0;
    }

    .nav-link::after {
        display: none;
    }

    .nav-phone {
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--border-color);
        text-align: center;
    }

    .nav-phone a {
        font-size: 1rem;
        padding: 0.6rem 1.2rem;
    }

    .hero {
        padding: 3rem 20px;
        min-height: auto;
    }

    .hero-content {
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .services h2,
    .airconditioners h2,
    .maintenance h2,
    .faq h2,
    .contact h2 {
        font-size: 1.8rem;
    }

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

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

    .maintenance-images {
        flex-direction: row;
    }

    .maintenance-images img {
        flex: 1;
    }

    .project-body {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 1.5rem;
    }

    .project-header {
        padding: 2rem 1.5rem;
    }

    .project-header h1 {
        font-size: 1.8rem;
    }

    .project-image-large {
        height: 250px;
    }

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

    .phone-banner a {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .nav-menu {
        padding: 1rem 0;
    }

    .hero-content h1 {
        font-size: 1.5rem;
    }

    .services h2,
    .airconditioners h2,
    .maintenance h2,
    .faq h2,
    .contact h2 {
        font-size: 1.5rem;
        margin-bottom: 2rem;
    }

    .services-grid,
    .airconditioners-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .maintenance-images {
        flex-direction: column;
    }

    .footer-content {
        gap: 1.5rem;
    }
}