/* ===== CSS VARIABLES ===== */
:root {
    --primary-color: #4685f6;
    --primary-dark: #3152f4;
    --primary-light: #6ba0f8;
    --secondary-color: #222038;
    --accent-color: #25D366;
    --text-dark: #1a1a2e;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 { 
    font-size: 58px; 
    font-weight: 600;
    margin-bottom: 1.5rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}
h2 { 
    font-size: 2.5rem; 
    margin-bottom: 1.25rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}
h3 { 
    font-size: 1.75rem; 
    margin-bottom: 1rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}
h4 { 
    font-size: 1.25rem; 
    margin-bottom: 0.75rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

p { 
    font-size: 20px;
    margin-bottom: 1rem; 
    color: var(--text-light);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }

img { max-width: 100%; height: auto; display: block; }

ul { list-style: none; }

.text-primary {
    color: var(--primary-color);
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
    box-sizing: border-box;
}

/* ===== TOP BAR ===== */
.top-bar {
    background-color: var(--primary-dark);
    color: white;
    padding: 0.75rem 0;
    font-size: 0.875rem;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.top-bar-left {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.top-bar-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
}

.top-bar-link:hover {
    color: var(--primary-light);
}

.top-bar-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===== NAVIGATION ===== */
.navbar {
    background-color: white;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo img {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
}

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

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-dark);
}

.mobile-menu-close {
    display: none;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    justify-content: center;
}

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

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

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

.btn-whatsapp:hover {
    background-color: #1da851;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

/* ===== ICONS ===== */
.icon-sm { width: 18px; height: 18px; }
.icon-md { width: 24px; height: 24px; }
.icon-lg { width: 32px; height: 32px; }
.icon-xl { width: 48px; height: 48px; }

/* ===== HERO SECTION ===== */
.hero {
    padding: 5rem 0;
    background: #ffffff;
}

.hero-grid {
    display: grid;
    grid-template-columns: 600px 600px;
    gap: 3rem;
    align-items: center;
    justify-content: center;
    max-width: 100%;
}

.hero-content {
    width: 100%;
    max-width: 600px;
    min-height: 530px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-content h1 {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-dark);
    font-weight: 500;
}

.feature-item i {
    color: var(--primary-color);
    flex-shrink: 0;
}

.feature-item span {
    font-size: 0.95rem;
}

.hero-image {
    position: relative;
    width: 100%;
    max-width: 600px;
    height: auto;
    aspect-ratio: 1;
}

.hero-image img {
    border-radius: 1rem;
    box-shadow: var(--shadow-xl);
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    width: fit-content;
}

.hero-badge i {
    color: white;
}

.hero-badge span {
    color: white;
    font-weight: 500;
}

/* ===== FEATURE CARDS SECTION ===== */
.feature-cards-section {
    padding: 3rem 0;
    background-color: #ffffff;
}

.feature-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    border: 1px solid #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.feature-card-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-color);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-card-icon i {
    color: white;
}

.feature-card-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.feature-card-content p {
    font-size: 0.95rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.6;
}

/* ===== SECTION HEADER ===== */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.section-header h2 {
    color: var(--text-dark);
}

.section-header p {
    font-size: 1.125rem;
}

/* ===== SERVICES OVERVIEW ===== */
.services-overview {
    padding: 5rem 0;
    background-color: #ffffff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 1rem;
    border: 1px solid #e5e7eb;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.service-card:nth-child(2) {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.service-card:nth-child(2) h3,
.service-card:nth-child(2) p,
.service-card:nth-child(2) .service-list li {
    color: white;
}

.service-card:nth-child(2) .service-icon {
    background: rgba(255, 255, 255, 0.2);
}

.service-card:nth-child(2) .service-icon i {
    color: white;
}

.service-card:nth-child(2) .service-list i {
    color: white;
}

.service-card:nth-child(2) .service-link {
    color: white;
}

.service-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-color);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: white;
}

.service-card h3 {
    font-size: 1.375rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 600;
}

.service-card > p {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.service-list {
    margin: 1.5rem 0;
    padding: 0;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.875rem;
    color: var(--text-light);
    font-size: 0.95rem;
}

.service-list i {
    color: #10b981;
    flex-shrink: 0;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-top: 1.5rem;
    font-size: 0.95rem;
}

.service-link:hover {
    gap: 0.75rem;
    text-decoration: underline;
}

/* ===== INSTALLATION SECTION ===== */
.installation-section {
    padding: 5rem 0;
    background-color: #ffffff;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.content-grid.reverse {
    direction: rtl;
}

.content-grid.reverse > * {
    direction: ltr;
}

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

.content-text > p {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.content-image img {
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    width: 100%;
}

.installation-services {
    margin: 2rem 0;
    display: grid;
    gap: 1.25rem;
}

.install-item {
    display: flex;
    gap: 1rem;
    align-items: start;
    padding: 0.5rem 0;
}

.install-item i {
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 0.25rem;
    width: 20px;
    height: 20px;
}

.install-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    font-weight: 600;
    color: var(--text-dark);
}

.install-item p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-light);
}

/* ===== REPAIR SECTION ===== */
.repair-section {
    padding: 5rem 0;
    background-color: white;
}

.repair-services {
    margin: 2rem 0;
    display: grid;
    gap: 1.25rem;
}

.repair-item {
    display: flex;
    gap: 1rem;
    align-items: start;
    padding: 0.5rem 0;
}

.repair-item i {
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 0.25rem;
    width: 20px;
    height: 20px;
}

.repair-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    font-weight: 600;
    color: var(--text-dark);
}

.repair-item p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-light);
}

/* ===== MAINTENANCE SECTION ===== */
.maintenance-section {
    padding: 5rem 0;
    background-color: #ffffff;
}

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

.maintenance-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.maintenance-card {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    text-align: left;
    transition: var(--transition);
    border: 1px solid #e5e7eb;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.maintenance-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.maintenance-icon {
    width: 56px;
    height: 56px;
    background: #f3f4f6;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    flex-shrink: 0;
}

.maintenance-icon i,
.maintenance-icon svg {
    color: var(--text-dark);
    width: 28px !important;
    height: 28px !important;
    stroke: var(--text-dark);
}

.maintenance-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--text-dark);
}

.maintenance-card p {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}

/* ===== GALLERY SECTION ===== */
.gallery-section {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

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

.gallery-item {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 2rem 1.5rem 1.5rem;
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h3 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.gallery-overlay p {
    color: rgba(255,255,255,0.9);
    font-size: 0.95rem;
    margin: 0;
}

/* ===== TESTIMONIALS ===== */
.testimonials {
    padding: 5rem 0;
    background-color: white;
}

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

.testimonial-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

.testimonial-rating {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.star-filled {
    color: #fbbf24;
    width: 20px;
    height: 20px;
    fill: #fbbf24;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.testimonial-author h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.testimonial-author p {
    margin: 0;
    font-size: 0.875rem;
}

/* ===== FAQ SECTION ===== */
.faq-section {
    padding: 5rem 0;
    background-color: #ffffff;
}

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

.faq-item {
    background: white;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    text-align: left;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 1.125rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-dark);
    transition: var(--transition);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

/* ===== CONTACT SECTION ===== */
.contact-section {
    padding: 5rem 0;
    background-color: white;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-info h3 {
    margin-bottom: 1rem;
}

.contact-details {
    margin: 2rem 0;
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-light);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

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

.contact-item a:hover {
    text-decoration: underline;
}

.quick-contact {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

/* ===== CONTACT FORM ===== */
.contact-form-container {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 1rem;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group label {
    display: block;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-family: 'Nunito', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(70, 133, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    margin-bottom: 1.5rem;
    height: 50px;
    width: auto;
    display: block;
    filter: brightness(0) invert(1);
}

.footer-col p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.5rem;
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.social-link:hover {
    background: var(--primary-color);
}

.footer-col h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-contact li {
    display: flex;
    align-items: start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact i {
    color: var(--primary-color);
    margin-top: 0.25rem;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.8);
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom-links a:hover {
    color: white;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1320px) {
    .hero-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .hero-content {
        max-width: 100%;
        min-height: auto;
    }
    
    .hero-image {
        max-width: 100%;
    }
}

@media (max-width: 1024px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    p { font-size: 18px; }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        justify-content: stretch;
    }
    
    .hero-content {
        width: 100%;
        max-width: 100%;
        min-height: auto;
    }
    
    .hero-image {
        width: 100%;
        max-width: 100%;
        height: auto;
        aspect-ratio: 1;
    }
    
    .feature-cards-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    /* Top Bar Mobile Optimization */
    .top-bar {
        padding: 1rem 0;
    }
    
    .top-bar-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .top-bar-left {
        flex-direction: column;
        gap: 0.75rem;
        width: 100%;
    }
    
    .top-bar-link {
        font-size: 0.9rem;
    }
    
    .top-bar-right {
        width: 100%;
    }
    
    .top-bar-text {
        font-size: 0.85rem;
    }
    
    /* Navigation Mobile */
    .logo img {
        height: 40px;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
        align-items: flex-start;
        z-index: 999;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-menu-close {
        display: block;
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
        background: none;
        border: none;
        cursor: pointer;
        color: var(--text-dark);
        padding: 0.5rem;
        transition: var(--transition);
    }
    
    .mobile-menu-close:hover {
        color: var(--primary-color);
        transform: rotate(90deg);
    }
    
    .nav-link {
        width: 100%;
        padding: 0.75rem 0;
        font-size: 1.125rem;
        border-bottom: 1px solid var(--border-color);
        margin-top: 1rem;
    }
    
    .nav-link:first-of-type {
        margin-top: 3rem;
    }
    
    .nav-link:last-of-type {
        border-bottom: none;
    }
    
    .nav-menu .btn {
        width: 100%;
        margin-top: 1.5rem;
        border-bottom: none;
    }
    
    .mobile-menu-toggle {
        display: block;
        z-index: 1001;
    }
    
    /* Hero Section Mobile */
    .hero {
        padding: 2.5rem 0;
    }
    
    .hero-content h1 {
        font-size: 1.875rem;
        line-height: 1.3;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .hero-features {
        gap: 1rem;
    }
    
    .feature-item {
        font-size: 0.9rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-badge {
        padding: 1.25rem;
    }
    
    /* Sections Mobile */
    .services-overview,
    .installation-section,
    .repair-section,
    .maintenance-section,
    .gallery-section,
    .testimonials,
    .faq-section,
    .contact-section {
        padding: 3rem 0;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .section-header {
        margin-bottom: 2rem;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .service-card {
        padding: 2rem 1.5rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    .service-icon {
        width: 70px;
        height: 70px;
    }
    
    .maintenance-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-container {
        padding: 1.5rem;
    }
    
    .footer {
        padding: 2.5rem 0 1rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    /* Typography */
    h1 { font-size: 1.625rem; line-height: 1.3; }
    h2 { font-size: 1.5rem; line-height: 1.3; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.125rem; }
    
    /* Container */
    .container {
        padding: 0 1rem;
    }
    
    /* Top Bar */
    .top-bar {
        padding: 0.875rem 0;
    }
    
    .top-bar-link,
    .top-bar-text {
        font-size: 0.875rem;
    }
    
    /* Logo */
    .logo img {
        height: 35px;
    }
    
    /* Hero */
    .hero {
        padding: 2rem 0;
    }
    
    .hero-content h1 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .hero-content p {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.875rem;
    }
    
    .feature-item {
        font-size: 0.875rem;
    }
    
    .feature-item i {
        width: 20px;
        height: 20px;
    }
    
    .hero-buttons {
        gap: 0.75rem;
    }
    
    .btn-lg {
        padding: 0.875rem 1.25rem;
        font-size: 0.95rem;
    }
    
    .hero-image img {
        border-radius: 0.75rem;
    }
    
    .hero-badge {
        padding: 0.5rem 0.875rem;
        font-size: 0.8rem;
        margin-bottom: 1rem;
    }
    
    /* Sections */
    .services-overview,
    .installation-section,
    .repair-section,
    .maintenance-section,
    .gallery-section,
    .testimonials,
    .faq-section,
    .contact-section {
        padding: 2.5rem 0;
    }
    
    .section-header {
        margin-bottom: 1.75rem;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
        margin-bottom: 0.875rem;
    }
    
    .section-header p {
        font-size: 0.95rem;
    }
    
    /* Service Cards */
    .service-card,
    .maintenance-card,
    .testimonial-card {
        padding: 1.25rem;
    }
    
    .service-icon {
        width: 60px;
        height: 60px;
        border-radius: 0.75rem;
    }
    
    .service-icon i,
    .maintenance-card i {
        width: 36px;
        height: 36px;
    }
    
    .service-card h3,
    .maintenance-card h3 {
        font-size: 1.125rem;
    }
    
    .service-card p,
    .maintenance-card p {
        font-size: 0.9rem;
    }
    
    .maintenance-grid {
        grid-template-columns: 1fr;
    }
    
    /* Installation/Repair Items */
    .install-item,
    .repair-item {
        gap: 0.875rem;
    }
    
    .install-item h4,
    .repair-item h4 {
        font-size: 1rem;
    }
    
    .install-item p,
    .repair-item p {
        font-size: 0.85rem;
    }
    
    /* FAQ */
    .faq-question {
        padding: 1.125rem;
        font-size: 1rem;
    }
    
    .faq-answer p {
        padding: 0 1.125rem 1.125rem;
        font-size: 0.9rem;
    }
    
    /* Contact */
    .contact-item {
        gap: 0.875rem;
    }
    
    .contact-icon {
        width: 45px;
        height: 45px;
    }
    
    .contact-item h4 {
        font-size: 0.95rem;
    }
    
    .contact-item p,
    .contact-item a {
        font-size: 0.9rem;
    }
    
    .contact-form-container {
        padding: 1.25rem;
    }
    
    .form-group label {
        font-size: 0.95rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.625rem 0.875rem;
        font-size: 0.95rem;
    }
    
    /* Footer */
    .footer {
        padding: 2rem 0 1rem;
    }
    
    .footer-logo {
        height: 35px;
    }
    
    .footer-col h4 {
        font-size: 1.125rem;
        margin-bottom: 0.875rem;
    }
    
    .footer-col p,
    .footer-links a,
    .footer-contact li {
        font-size: 0.9rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .footer-bottom p,
    .footer-bottom-links a {
        font-size: 0.85rem;
    }
    
    .footer-bottom-links {
        gap: 1.5rem;
    }
}