/* ==========================================
   CSS RESET & BASE STYLES
   ========================================== */

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

:root {
    /* Brand Colors */
    --color-primary: #6FB584;
    --color-primary-dark: #5A6D77;
    --color-primary-light: #8DC09F;
    --color-secondary: #4A5F6F;
    --color-white: #FFFFFF;
    --color-light-gray: #E8E8E8;
    --color-medium-gray: #999999;
    --color-dark-gray: #333333;
    --color-black: #1A1A1A;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--color-dark-gray);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* ==========================================
   CONTAINER & LAYOUT
   ========================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.page {
    display: none;
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   NAVIGATION
   ========================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-medium);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.nav-brand .logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.brand-tagline {
    font-size: 0.7rem;
    color: var(--color-medium-gray);
    letter-spacing: 1px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-secondary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-dark-gray);
    transition: var(--transition-fast);
    position: relative;
}

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

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

.nav-cta {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition-fast);
}

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

/* ==========================================
   HERO SECTION
   ========================================== */

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 70px;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(74, 95, 111, 0.8), rgba(111, 181, 132, 0.6));
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 30px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-fast);
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

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

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

/* ==========================================
   SECTION TITLES
   ========================================== */

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-secondary);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 2px;
}

/* ==========================================
   SERVICE CARDS
   ========================================== */

.services-preview {
    padding: var(--spacing-xl) 0;
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--color-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
    position: relative;
}

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

.card-image-wrapper {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.card-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.card-icon {
    position: absolute;
    top: 180px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-white);
    border-radius: 50%;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    z-index: 2;
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-secondary);
    margin: var(--spacing-xl) var(--spacing-md) var(--spacing-sm);
    text-align: center;
}

.service-card p {
    padding: 0 var(--spacing-md);
    text-align: center;
    color: var(--color-medium-gray);
    margin-bottom: var(--spacing-md);
}

.card-link {
    display: block;
    text-align: center;
    color: var(--color-primary);
    font-weight: 600;
    padding: var(--spacing-md);
    transition: var(--transition-fast);
}

.card-link:hover {
    color: var(--color-primary-dark);
}

/* ==========================================
   STATISTICS SECTION
   ========================================== */

.statistics-section {
    position: relative;
    padding: var(--spacing-xl) 0;
    margin: var(--spacing-xl) 0;
    overflow: hidden;
}

.statistics-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.statistics-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.statistics-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(74, 95, 111, 0.85);
}

.statistics-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

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

.stat-number {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: 1.2rem;
    margin-top: var(--spacing-sm);
    font-weight: 300;
}

/* ==========================================
   TESTIMONIALS
   ========================================== */

.testimonials-section {
    padding: var(--spacing-xl) 0;
}

.testimonials-carousel {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.testimonials-wrapper {
    position: relative;
    min-height: 300px;
}

.testimonial {
    display: none;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.testimonial.active {
    display: block;
    opacity: 1;
    animation: fadeIn 0.5s ease;
}

.testimonial-content {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 15px;
    box-shadow: var(--shadow-md);
}

.stars {
    color: #FFB800;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--color-dark-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-name {
    font-weight: 600;
    color: var(--color-secondary);
}

.author-location {
    font-size: 0.9rem;
    color: var(--color-medium-gray);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-primary);
    color: var(--color-white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    z-index: 10;
}

.carousel-btn:hover {
    background: var(--color-primary-dark);
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn.prev {
    left: -60px;
}

.carousel-btn.next {
    right: -60px;
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-light-gray);
    transition: var(--transition-fast);
}

.indicator.active {
    background: var(--color-primary);
    width: 30px;
    border-radius: 6px;
}

/* ==========================================
   PAGE HEADERS
   ========================================== */

.page-header,
.contact-hero {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 70px;
}

.page-header img,
.contact-hero img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page-header-overlay,
.contact-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(74, 95, 111, 0.8), rgba(111, 181, 132, 0.6));
}

.page-header .container,
.contact-hero .container {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
}

.page-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    font-weight: 300;
}

/* ==========================================
   SERVICES GRID
   ========================================== */

.services-grid {
    padding: var(--spacing-xl) 0;
    display: grid;
    gap: var(--spacing-lg);
}

.service-item {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
    background: var(--color-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
}

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

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

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.service-details {
    padding: var(--spacing-lg);
}

.service-details h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
}

.service-details p {
    color: var(--color-medium-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.service-features {
    margin: var(--spacing-md) 0;
}

.service-features li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
    color: var(--color-dark-gray);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.btn-expand {
    margin-top: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition-fast);
}

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

/* ==========================================
   PROJECT GALLERY
   ========================================== */

.project-gallery {
    padding: var(--spacing-xl) 0;
}

.gallery-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 2px solid var(--color-light-gray);
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition-fast);
    color: var(--color-dark-gray);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    height: 250px;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-medium);
}

.gallery-item.hidden {
    display: none;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--color-white);
    transform: translateY(100%);
    transition: var(--transition-medium);
}

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

.gallery-overlay h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
}

.gallery-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* ==========================================
   PROCESS TIMELINE
   ========================================== */

.process-section {
    background: var(--color-light-gray);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xl);
}

.process-timeline {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
}

.step-number {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 35px;
    height: 35px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    z-index: 2;
}

.step-icon {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--spacing-md);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    position: relative;
}

.step-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.process-step h3 {
    font-family: var(--font-heading);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

.process-step p {
    color: var(--color-medium-gray);
    font-size: 0.9rem;
}

.process-arrow {
    font-size: 2rem;
    color: var(--color-primary);
    flex-shrink: 0;
}

/* ==========================================
   CONTACT FORM
   ========================================== */

.contact-content {
    padding: var(--spacing-xl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-form-wrapper h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 600;
    color: var(--color-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm);
    border: 2px solid var(--color-light-gray);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
}

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

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: #E74C3C;
}

.error-message {
    color: #E74C3C;
    font-size: 0.9rem;
    display: none;
}

.form-group.error .error-message {
    display: block;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.btn-submit {
    margin-top: var(--spacing-md);
    position: relative;
}

.btn-submit .btn-loading {
    display: none;
}

.btn-submit.loading .btn-text {
    display: none;
}

.btn-submit.loading .btn-loading {
    display: block;
}

.form-success {
    display: none;
    padding: var(--spacing-md);
    background: #D4EDDA;
    border: 2px solid var(--color-primary);
    border-radius: 8px;
    color: #155724;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-success.show {
    display: flex;
}

/* ==========================================
   CONTACT INFO
   ========================================== */

.contact-image {
    width: 100%;
    height: 300px;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

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

.contact-cards {
    display: grid;
    gap: var(--spacing-md);
}

.contact-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

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

.contact-card.highlight {
    background: var(--color-primary);
    color: var(--color-white);
}

.contact-card-icon {
    margin-bottom: var(--spacing-sm);
}

.contact-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.contact-card.highlight h3 {
    color: var(--color-white);
}

.contact-card p {
    color: var(--color-medium-gray);
    line-height: 1.6;
}

.contact-card.highlight p {
    color: var(--color-white);
}

.contact-phone,
.contact-email {
    display: block;
    margin-top: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-white);
    transition: var(--transition-fast);
}

.contact-phone:hover,
.contact-email:hover {
    opacity: 0.8;
}

/* ==========================================
   MAP SECTION
   ========================================== */

.map-section {
    margin-top: var(--spacing-xl);
}

.map-container {
    width: 100%;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    background: var(--color-secondary);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-brand-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-brand-tagline {
    font-size: 0.9rem;
    opacity: 0.8;
}

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

.footer-column h4 {
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

.footer-links,
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a,
.footer-contact a {
    opacity: 0.9;
    transition: var(--transition-fast);
}

.footer-links a:hover,
.footer-contact a:hover {
    opacity: 1;
    color: var(--color-primary);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    opacity: 0.8;
}

.footer-credits {
    margin-top: var(--spacing-xs);
}

.footer-credits a {
    color: var(--color-primary);
    font-weight: 600;
}

/* ==========================================
   LIGHTBOX
   ========================================== */

.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-image {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: var(--color-white);
    color: var(--color-dark-gray);
    border: none;
    font-size: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.lightbox-close {
    top: 20px;
    right: 20px;
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

.lightbox-caption {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-white);
    background: rgba(0, 0, 0, 0.7);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 968px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        transition: var(--transition-medium);
        box-shadow: var(--shadow-md);
    }

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

    .service-item {
        grid-template-columns: 1fr;
    }

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

    .process-timeline {
        flex-direction: column;
    }

    .process-arrow {
        transform: rotate(90deg);
    }

    .carousel-btn.prev {
        left: 10px;
    }

    .carousel-btn.next {
        right: 10px;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }

    .hero {
        min-height: 500px;
    }

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

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

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

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

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .statistics-content {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   ANIMATIONS & UTILITIES
   ========================================== */

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

.animate-in {
    animation: slideInUp 0.6s ease forwards;
}

/* Smooth scrolling offset for fixed nav */
section {
    scroll-margin-top: 80px;
}

/* Loading spinner */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.btn-submit.loading::after {
    content: '';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-white);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}