/* ===================================
   CSS Variables for Theme
   =================================== */
:root {
    --color-primary: #001e3c;
    --color-primary-dark: #001428;
    --color-accent: #1976d2;
    --color-accent-hover: #1565c0;
    --color-white: #ffffff;
    --color-light-gray: #f5f7fa;
    --color-gray: #e0e4e8;
    --color-text-dark: #0a1929;
    --color-text-light: #6b7280;
    --color-text-lighter: #9ca3af;
    --color-error: #dc2626;
    --color-success: #16a34a;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    
    --header-height: 80px;
}

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

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

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

body.menu-open {
    overflow: hidden;
}

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

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

ul, ol {
    list-style: none;
}

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

/* ===================================
   Container
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===================================
   Header
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    transition: background-color var(--transition-base), 
                box-shadow var(--transition-base),
                padding var(--transition-base);
    padding: 16px 0;
}

.header--scrolled {
    background-color: rgba(0, 30, 60, 0.95);
    box-shadow: var(--shadow-md);
    padding: 12px 0;
    backdrop-filter: blur(12px);
}

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

.header__logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-white);
    font-weight: 700;
    font-size: 1.125rem;
    transition: color var(--transition-fast);
}

.header__logo:hover {
    color: var(--color-accent);
}

.logo-img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.header__logo:hover .logo-img {
    transform: scale(1.05);
}

.header__brand {
    white-space: nowrap;
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 4px;
    margin-left: 20px;
}

.lang-switcher--mobile {
    display: none;
}

.lang-btn {
    padding: 6px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-white);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.lang-btn.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
}

/* Navigation */
.nav__list {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav__link {
    color: var(--color-white);
    font-weight: 500;
    font-size: 0.9375rem;
    position: relative;
    transition: color var(--transition-fast);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

.nav__link:hover {
    color: var(--color-accent);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__link:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 32px;
    height: 32px;
    padding: 4px;
    z-index: 1001;
}

.menu-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--color-white);
    transition: transform var(--transition-base), 
                opacity var(--transition-fast),
                background-color var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.menu-toggle:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero__slideshow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero__slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transform: scale(1.1);
    transition: opacity 1.5s ease-in-out, transform 8s ease-out;
}

.hero__slide.active {
    opacity: 1;
    transform: scale(1);
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 30, 60, 0.88) 0%, rgba(0, 30, 60, 0.82) 100%);
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(25, 118, 210, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 1;
}

.hero__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero__logo-large {
    width: 120px;
    height: 120px;
    margin: 0 auto 32px;
    color: var(--color-white);
    animation: fadeInUp 0.8s ease;
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.4));
}

.hero__logo-large svg {
    width: 100%;
    height: 100%;
}

.hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--color-white);
    animation: fadeInUp 0.8s ease 0.1s both;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero__subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 32px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.8s ease 0.2s both;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: var(--color-white);
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.3s both;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero__cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: 16px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: transform var(--transition-fast),
                box-shadow var(--transition-fast),
                background-color var(--transition-fast),
                color var(--transition-fast);
    cursor: pointer;
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
}

.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

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

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

.btn--secondary:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn--full {
    width: 100%;
}

/* Button Loader */
.btn--loading {
    position: relative;
    pointer-events: none;
    color: transparent !important;
}

.btn--loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: btnSpinner 0.8s linear infinite;
}

@keyframes btnSpinner {
    to {
        transform: rotate(360deg);
    }
}

/* ===================================
   Sections
   =================================== */
.section__title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 16px;
    text-align: center;
}

.section__subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

/* ===================================
   About / Why Us Section
   =================================== */
.about {
    padding: 100px 0;
    background-color: var(--color-white);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background-color: var(--color-white);
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), 
                box-shadow var(--transition-base);
}

.feature-card.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

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

.feature-card__icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.1) 0%, rgba(25, 118, 210, 0.05) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--color-accent);
    transition: background-color var(--transition-base);
}

.feature-card:hover .feature-card__icon {
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.15) 0%, rgba(25, 118, 210, 0.08) 100%);
}

.feature-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.feature-card__text {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===================================
   Services Section
   =================================== */
.services {
    padding: 100px 0;
    background-color: var(--color-light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-bottom: 64px;
}

.service-category {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base),
                box-shadow var(--transition-base);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.service-category.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

.service-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-category__image {
    width: 100%;
    height: 150px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.service-category__image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
}

.service-category__content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.service-category__content .btn--service {
    margin-top: auto;
}

.service-category__title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-accent);
}

.service-list {
    list-style: none;
}

.service-list li {
    padding: 6px 0 6px 22px;
    color: var(--color-text-light);
    position: relative;
    font-size: 0.9rem;
    line-height: 1.5;
    transition: color var(--transition-fast);
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 50%;
    transition: transform var(--transition-fast);
}

.service-list li:hover {
    color: var(--color-text-dark);
}

.service-list li:hover::before {
    transform: scale(1.3);
}

/* Specialization Block */
.specialization {
    background-color: var(--color-primary);
    padding: 48px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.specialization__title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 32px;
    text-align: center;
}

.specialization-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.specialization-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-white);
    transition: background-color var(--transition-base),
                transform var(--transition-fast);
}

.specialization-item:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateX(4px);
}

.specialization-item svg {
    flex-shrink: 0;
    color: var(--color-accent);
}

/* ===================================
   Gallery Section
   =================================== */
.gallery {
    padding: 100px 0 0;
    background-color: var(--color-white);
    overflow: hidden;
}

/* Gallery Carousel Rows */
.gallery-row {
    overflow: hidden;
    width: 100%;
    margin-top: 16px;
    pointer-events: auto;
}

.gallery-row--1 {
    margin-top: 48px;
}

.gallery-track {
    display: flex;
    gap: 16px;
    width: max-content;
    pointer-events: auto;
}

.gallery-track--1 {
    animation: scrollLeft 30s linear infinite;
}

.gallery-track--2 {
    animation: scrollRight 30s linear infinite;
}

@keyframes scrollLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@keyframes scrollRight {
    0% {
        transform: translateX(-50%);
    }
    100% {
        transform: translateX(0);
    }
}

.gallery-row:hover .gallery-track {
    animation-play-state: paused;
}

.gallery-item {
    flex: 0 0 300px;
    height: 220px;
    overflow: hidden;
    cursor: pointer;
    border-radius: var(--radius-lg);
    position: relative;
    z-index: 10;
    pointer-events: auto !important;
}

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

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

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: var(--radius-lg);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.lightbox.active .lightbox-img {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 48px;
    color: var(--color-white);
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.3s ease;
    z-index: 10001;
}

.lightbox-close:hover {
    color: var(--color-accent);
}

.lightbox-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

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

.lightbox-btn--prev {
    left: 30px;
}

.lightbox-btn--next {
    right: 30px;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: 100px 0;
    background-color: var(--color-light-gray);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    margin-top: 64px;
}

/* Contact Map */
.contact-map {
    background-color: var(--color-white);
    padding: 16px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.contact-map iframe {
    display: block;
    width: 100%;
    min-height: 400px;
}

/* Contact Form */
.contact-form {
    background-color: var(--color-white);
    padding: 48px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: 8px;
    font-size: 0.9375rem;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--color-gray);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    color: var(--color-text-dark);
    background-color: var(--color-white);
    transition: border-color var(--transition-fast),
                box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

.form-input.error,
.form-textarea.error {
    border-color: var(--color-error);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    display: block;
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: 6px;
}

.form-success {
    display: none;
    background-color: rgba(22, 163, 74, 0.1);
    color: var(--color-success);
    padding: 16px;
    border-radius: var(--radius-md);
    margin-top: 20px;
    font-weight: 600;
    text-align: center;
}

/* Contact Info */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-info__item {
    display: flex;
    gap: 20px;
    padding: 28px;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base),
                box-shadow var(--transition-base);
}

.contact-info__item.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

.contact-info__item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.contact-info__item svg {
    flex-shrink: 0;
    color: var(--color-accent);
}

.contact-info__item h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 6px;
}

.contact-info__item p {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 64px 0 32px;
}

.footer__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
}

.footer__logo .logo-svg {
    width: 56px;
    height: 56px;
}

.footer__nav {
    display: flex;
    gap: 32px;
}

.footer__nav a {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.footer__nav a:hover {
    color: var(--color-white);
}

.footer__nav a:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

.footer__bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

.footer__bottom p {
    margin-bottom: 8px;
}

.footer__disclaimer {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
}

.pinmap-link {
    color: #00d4ff;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s ease;
}

.pinmap-link:hover {
    color: #fff;
}

/* ===================================
   Modal
   =================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal__content {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 450px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-xl);
}

.modal.active .modal__content {
    transform: scale(1) translateY(0);
}

.modal__close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-light-gray);
    color: var(--color-text-dark);
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal__close:hover {
    background: var(--color-error);
    color: var(--color-white);
}

.modal__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: 8px;
}

.modal__service-name {
    font-size: 1rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-gray);
}

.modal__form .form-group {
    margin-bottom: 20px;
}

.modal__form .btn--full {
    margin-top: 8px;
}

/* Service button style */
.btn--service {
    margin-top: 16px;
    width: 100%;
    padding: 12px 20px;
    font-size: 0.875rem;
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   Responsive Design
   =================================== */

/* Tablet (768px) */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .header {
        padding: 12px 0;
    }

    .header__brand {
        font-size: 1rem;
    }

    .logo-svg {
        width: 40px;
        height: 40px;
    }

    /* Language switcher mobile */
    .lang-switcher--desktop {
        display: none;
    }

    .lang-switcher--mobile {
        display: flex;
        justify-content: center;
        margin-top: 32px;
        padding-top: 24px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    /* Mobile menu */
    .menu-toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: rgba(0, 30, 60, 0.98);
        box-shadow: var(--shadow-xl);
        padding: 100px 32px 32px;
        transition: right var(--transition-base);
        overflow-y: auto;
        backdrop-filter: blur(12px);
    }

    .nav.active {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    .nav__link {
        font-size: 1.125rem;
        color: var(--color-white);
    }

    .nav__link:hover {
        color: var(--color-accent);
    }

    /* Hero */
    .hero {
        padding: 140px 0 80px;
    }

    .hero__title {
        font-size: 2.5rem;
    }

    .hero__subtitle {
        font-size: 1.125rem;
    }

    .hero__logo-large {
        width: 100px;
        height: 100px;
    }

    /* Sections */
    .section__title {
        font-size: 2rem;
    }

    .about,
    .services,
    .gallery,
    .contact {
        padding: 80px 0;
    }

    /* Gallery */
    .gallery-item {
        flex: 0 0 250px;
        height: 180px;
    }
    
    .lightbox-btn {
        width: 50px;
        height: 50px;
    }
    
    .lightbox-btn--prev {
        left: 15px;
    }
    
    .lightbox-btn--next {
        right: 15px;
    }

    /* Features */
    .features {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* Services */
    .services-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* Contact */
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .contact-form {
        padding: 32px;
    }

    /* Specialization */
    .specialization {
        padding: 32px;
    }

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

    /* Footer */
    .footer {
        padding: 48px 0 24px;
    }

    .footer__content {
        flex-direction: column;
        gap: 32px;
        text-align: center;
    }

    .footer__nav {
        flex-direction: column;
        gap: 16px;
    }
}

/* Mobile (480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero__title {
        font-size: 2rem;
    }

    .hero__subtitle {
        font-size: 1rem;
    }

    .hero__cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .section__title {
        font-size: 1.75rem;
    }

    .feature-card,
    .service-category,
    .contact-form {
        padding: 24px;
    }

    .gallery-item {
        flex: 0 0 200px;
        height: 150px;
    }

    .specialization {
        padding: 24px;
    }

    .specialization__title {
        font-size: 1.5rem;
    }
}