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

:root {
    --primary-color: #2c3e50;
    --accent-color: #f39c12;
    --dark-color: #1a252f;
    --light-color: #ffffff;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #e0e0e0;
    --gray-bg: #fafafa;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--light-color);
    font-size: 16px;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1.2rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--dark-color);
}

/* Fluid Typography for better responsiveness */
h1 { font-size: clamp(1.75rem, 5vw, 3rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 600; }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: clamp(1.1rem, 2.5vw, 1.25rem); }
h5 { font-size: clamp(1rem, 2vw, 1.1rem); }
h6 { font-size: clamp(0.95rem, 1.5vw, 1rem); }

p {
    margin-bottom: 1.2rem;
    color: var(--text-light);
}

/* === Header and Navigation === */
header {
    background-color: var(--light-color);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1.25rem 0;
}

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

.logo h1 {
    color: var(--dark-color);
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-menu a {
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    letter-spacing: 0.2px;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    letter-spacing: 0.3px;
}

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

.btn-primary:hover {
    background-color: #e67e22;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(243, 156, 18, 0.3);
}

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

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

/* === Hero Section === */
.hero {
    background-image: url('../images/hero-background.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 8rem 0;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(250, 250, 250, 0.4);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content h2 {
    color: var(--dark-color);
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.35rem;
    margin-bottom: 3rem;
    color: var(--text-light);
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* === Page Header === */
.page-header {
    background-color: var(--gray-bg);
    padding: 4rem 0;
    text-align: center;
}

.page-header h1 {
    color: var(--dark-color);
    margin-bottom: 0.75rem;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--text-light);
}

/* === About Section === */
.about {
    padding: 6rem 0;
    background-color: var(--light-color);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header p {
    font-size: 1.15rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
}

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

.about-item {
    background: var(--light-color);
    padding: 1.5rem 1rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.about-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.08);
    border-color: var(--accent-color);
}

.about-item .icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.about-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.about-item p {
    font-size: 0.9rem;
    line-height: 1.5;
}

/* === Advantages Section === */
.advantages {
    padding: 6rem 0;
    background-color: var(--gray-bg);
}

.advantages h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.advantage-card {
    background: var(--light-color);
    padding: 2.5rem;
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
}

.advantage-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

/* === Technologies Section === */
.technologies {
    padding: 6rem 0;
    background-color: var(--light-color);
}

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

.tech-image img {
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.tech-list {
    list-style: none;
    margin-bottom: 2rem;
}

.tech-list li {
    padding: 1.2rem 0;
    border-bottom: 1px solid var(--border-color);
}

.tech-list li:last-child {
    border-bottom: none;
}

/* === Solutions Page === */
.solutions {
    padding: 4rem 0;
    background-color: var(--light-color);
}

.solution-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    margin-bottom: 6rem;
    padding-bottom: 6rem;
    border-bottom: 1px solid var(--border-color);
    align-items: start;
}

.solution-item:last-child {
    border-bottom: none;
}

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

.solution-item.reverse .solution-image {
    order: 2;
}

.solution-image {
    position: relative;
}

.solution-image img {
    border-radius: 12px;
    width: 100%;
    height: 500px;
    object-fit: cover;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.solution-subtitle {
    color: var(--accent-color);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

.solution-content h2 {
    margin-bottom: 1rem;
}

.solution-content h3 {
    color: var(--dark-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.solution-content ul {
    margin-bottom: 2rem;
    padding-left: 1.5rem;
}

.solution-content ul li {
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.solution-content .btn {
    margin-top: 2rem;
}

/* === Equipment Catalog === */
.equipment-catalog {
    padding: 4rem 0;
}

.equipment-card {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 5rem;
    padding: 3rem;
    background: var(--gray-bg);
    border-radius: 12px;
}

.equipment-image img {
    border-radius: 12px;
    width: 100%;
    height: 450px;
    object-fit: cover;
}

.equipment-subtitle {
    color: var(--accent-color);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.specs {
    margin: 2rem 0;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.specs-table tr {
    border-bottom: 1px solid var(--border-color);
}

.specs-table td {
    padding: 1rem 0.5rem;
}

.specs-table td:first-child {
    color: var(--text-light);
}

.specs-table td:last-child {
    text-align: right;
    font-weight: 500;
}

.equipment-price {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.equipment-price p {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.equipment-price strong {
    color: var(--accent-color);
    font-size: 1.5rem;
}

/* === Comparison Table === */
.comparison {
    padding: 6rem 0;
    background-color: var(--gray-bg);
}

.comparison h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--light-color);
    border-radius: 12px;
    overflow: hidden;
}

.comparison-table thead {
    background-color: var(--dark-color);
    color: var(--light-color);
}

.comparison-table th,
.comparison-table td {
    padding: 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table tbody tr:hover {
    background-color: var(--gray-bg);
}

/* === Options === */
.options {
    padding: 6rem 0;
}

.options h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.option-card {
    background: var(--gray-bg);
    padding: 2.5rem;
    border-radius: 12px;
    border-top: 4px solid var(--accent-color);
}

.option-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.option-price {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 1.35rem;
    margin-top: 1.5rem;
}

/* === R&D Page === */
.rd-intro {
    padding: 6rem 0;
    background-color: var(--gray-bg);
}

.rd-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.rd-image img {
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.rd-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

/* === Competencies === */
.competencies {
    padding: 6rem 0;
}

.competencies h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.competency-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.competency-card {
    background: var(--gray-bg);
    padding: 2.5rem;
    border-radius: 12px;
}

.competency-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.competency-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

/* === Custom Projects === */
.custom-projects {
    padding: 6rem 0;
    background-color: var(--gray-bg);
}

.custom-projects h2 {
    text-align: center;
    margin-bottom: 1rem;
}

.custom-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.custom-card {
    background: var(--light-color);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.custom-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.custom-time {
    color: var(--accent-color);
    font-weight: 600;
    margin-top: 1.5rem;
}

/* === Development Process === */
.development-process {
    padding: 6rem 0;
    background-color: var(--light-color);
}

.development-process h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.process-timeline {
    max-width: 900px;
    margin: 0 auto;
}

.process-step {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
}

.process-step::after {
    content: '';
    position: absolute;
    left: 50px;
    top: 100px;
    width: 2px;
    height: calc(100% + 2rem);
    background-color: var(--border-color);
}

.process-step:last-child::after {
    display: none;
}

.step-number {
    width: 100px;
    height: 100px;
    background-color: var(--accent-color);
    color: var(--light-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content {
    background: var(--light-color);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.step-duration {
    color: var(--accent-color);
    font-weight: 600;
    margin-top: 1rem;
}

/* === Lab Equipment === */
.lab-equipment {
    padding: 6rem 0;
    background-color: var(--gray-bg);
}

.lab-equipment h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.lab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.lab-item {
    background: var(--light-color);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.lab-item h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

/* === Partnerships === */
.partnerships {
    padding: 6rem 0;
    background-color: var(--light-color);
}

.partnerships h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.partnership-content > p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.partners-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.partner-item {
    background: var(--gray-bg);
    padding: 2.5rem;
    border-radius: 12px;
}

.partner-item h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

/* === Cases Page === */
.cases {
    padding: 4rem 0;
}

.case-item {
    margin-bottom: 5rem;
    padding-bottom: 5rem;
    border-bottom: 1px solid var(--border-color);
}

.case-item:last-child {
    border-bottom: none;
}

.case-header {
    margin-bottom: 2.5rem;
}

.case-meta {
    display: flex;
    gap: 2rem;
    margin-top: 0.75rem;
}

.case-location,
.case-date {
    color: var(--text-light);
    font-weight: 500;
}

.case-location::before {
    content: '📍 ';
}

.case-date::before {
    content: '📅 ';
}

.case-content {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 4rem;
}

.case-image img {
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    width: 100%;
    height: 450px;
    object-fit: cover;
}

.case-info h3 {
    color: var(--dark-color);
    margin-top: 2rem;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 2.5rem 0;
}

.result-item {
    background: var(--gray-bg);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.result-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.75rem;
}

.result-label {
    font-size: 0.95rem;
    color: var(--text-light);
}

.testimonial {
    background: var(--gray-bg);
    padding: 2.5rem;
    border-left: 4px solid var(--accent-color);
    border-radius: 8px;
    margin-top: 2.5rem;
    font-style: italic;
}

.testimonial cite {
    display: block;
    margin-top: 1.5rem;
    font-style: normal;
    font-weight: 600;
    color: var(--dark-color);
}

/* === Stats Summary === */
.stats-summary {
    padding: 6rem 0;
    background-color: var(--dark-color);
    color: var(--light-color);
}

.stats-summary h2 {
    text-align: center;
    color: var(--light-color);
    margin-bottom: 4rem;
}

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

.stat-card {
    text-align: center;
    padding: 2.5rem;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
}

.stat-card .stat-number {
    color: var(--light-color);
    font-size: 3.5rem;
}

.stat-card .stat-label {
    color: var(--light-color);
    font-size: 1.1rem;
}

/* === Service Page === */
.service-intro {
    padding: 6rem 0;
    background-color: var(--gray-bg);
}

.intro-content {
    max-width: 900px;
    margin: 0 auto 3rem;
}

.service-coverage {
    max-width: 900px;
    margin: 0 auto;
    background: var(--light-color);
    padding: 2.5rem;
    border-radius: 12px;
}

.coverage-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin: 1.5rem 0;
}

.coverage-list li::before {
    content: '✓ ';
    color: var(--accent-color);
    font-weight: 700;
}

.coverage-note {
    margin-top: 1.5rem;
    font-style: italic;
    color: var(--text-light);
}

/* === Service Types === */
.service-types {
    padding: 6rem 0;
}

.service-card {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 2.5rem;
    margin-bottom: 3rem;
    padding: 2.5rem;
    background: var(--gray-bg);
    border-radius: 12px;
}

.service-icon {
    font-size: 4.5rem;
    text-align: center;
}

.service-content h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.service-content h4,
.service-content h5 {
    color: var(--dark-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.training-program,
.maintenance-type {
    margin: 2rem 0;
    padding: 2rem;
    background: var(--light-color);
    border-radius: 8px;
}

.maintenance-duration {
    color: var(--accent-color);
    font-weight: 600;
    margin-top: 1rem;
}

.service-pricing {
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border-color);
}

.pricing-note {
    font-size: 0.95rem;
    color: var(--text-light);
    font-style: italic;
}

/* === Spare Parts === */
.spare-parts {
    padding: 6rem 0;
    background-color: var(--gray-bg);
}

.spare-parts h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.parts-content {
    max-width: 1000px;
    margin: 0 auto;
}

.parts-info,
.parts-categories,
.parts-ordering {
    margin-bottom: 3rem;
}

.category-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 2.5rem;
}

.category-item {
    background: var(--light-color);
    padding: 2rem;
    border-radius: 12px;
}

.category-item h4 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.delivery-info {
    background: var(--light-color);
    padding: 2.5rem;
    border-radius: 12px;
    margin-top: 2.5rem;
}

/* === Support Options === */
.support-options {
    padding: 6rem 0;
}

.support-options h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.support-plans {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.plan-card {
    background: var(--light-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    transition: all 0.3s ease;
}

.plan-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

.plan-card.featured {
    border-color: var(--accent-color);
    box-shadow: 0 8px 30px rgba(243, 156, 18, 0.2);
}

.plan-badge {
    background-color: var(--accent-color);
    color: var(--light-color);
    padding: 0.75rem 1.25rem;
    text-align: center;
    font-weight: 600;
}

.plan-header {
    padding: 2.5rem;
    text-align: center;
    background-color: var(--gray-bg);
}

.plan-header h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.plan-subtitle {
    color: var(--text-light);
    font-size: 0.95rem;
}

.plan-features {
    padding: 2.5rem;
}

.plan-features ul {
    list-style: none;
}

.plan-features ul li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.plan-features ul li:last-child {
    border-bottom: none;
}

.plan-price {
    padding: 2.5rem;
    text-align: center;
    background-color: var(--gray-bg);
    border-top: 1px solid var(--border-color);
}

.plan-price p {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin: 0;
}

/* === Contact Service === */
.contact-service {
    padding: 6rem 0;
    background-color: var(--gray-bg);
}

.contact-service h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

.contact-item {
    background: var(--light-color);
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
}

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

.contact-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-color);
}

.contact-note {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-top: 0.75rem;
}

/* === Contacts Page === */
.contacts-main {
    padding: 6rem 0;
}

.contacts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
}

.contact-block {
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
}

.contact-block:last-child {
    border-bottom: none;
}

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

/* === Contact Form === */
.contact-form-wrapper {
    background: var(--gray-bg);
    padding: 2.5rem;
    border-radius: 12px;
}

.contact-form-wrapper h2 {
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.75rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--dark-color);
}

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

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

.checkbox-group label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-weight: normal;
    font-size: 0.85rem;
    line-height: 1.5;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    min-width: 18px;
    height: 18px;
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.checkbox-group a {
    color: var(--accent-color);
    white-space: nowrap;
}

.form-note {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-top: 1.5rem;
}

/* === Map Section === */
.map-section {
    padding: 6rem 0;
    background-color: var(--gray-bg);
}

.map-section h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.map-placeholder {
    background: var(--light-color);
    padding: 5rem 3rem;
    border-radius: 12px;
    text-align: center;
    min-height: 500px;
    border: 1px solid var(--border-color);
}

.map-placeholder p {
    font-size: 1.35rem;
    color: var(--text-light);
}

.map-address {
    font-weight: 700;
    color: var(--dark-color);
    margin: 1.5rem 0;
}

.map-info {
    max-width: 700px;
    margin: 3rem auto;
    text-align: left;
}

.map-info h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

/* === Departments === */
.departments {
    padding: 6rem 0;
    background-color: var(--light-color);
}

.departments h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.departments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.department-card {
    background: var(--gray-bg);
    padding: 2.5rem;
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
}

.department-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

/* === Visit Info === */
.visit-info {
    padding: 6rem 0;
    background-color: var(--gray-bg);
}

.visit-content {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 4rem;
}

.visit-note {
    background: #fff3cd;
    padding: 1.5rem;
    border-left: 4px solid var(--accent-color);
    margin-top: 1.5rem;
    font-size: 0.95rem;
    border-radius: 8px;
}

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

.benefits-list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.benefits-list li::before {
    content: '✓ ';
    color: var(--accent-color);
    font-weight: 700;
}

/* === Social Media === */
.social-media {
    padding: 6rem 0;
    background-color: var(--light-color);
}

.social-media h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.social-link {
    text-align: center;
    padding: 2rem;
    background: var(--gray-bg);
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.social-link:hover {
    transform: translateY(-8px);
}

.social-icon {
    width: 100px;
    height: 100px;
    background-color: var(--dark-color);
    color: var(--light-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.social-note {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    color: var(--text-light);
}

/* === CTA Section === */
.cta {
    padding: 6rem 0;
    background-color: var(--dark-color);
    color: var(--light-color);
    text-align: center;
}

.cta h2 {
    color: var(--light-color);
    margin-bottom: 1.5rem;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    color: var(--light-color);
    opacity: 0.9;
}

.cta .btn-primary {
    background-color: var(--accent-color);
    color: var(--light-color);
}

.cta .btn-primary:hover {
    background-color: #e67e22;
}

/* === Footer === */
footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    padding: 4rem 0 1.5rem;
}

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

.footer-col h4 {
    color: var(--light-color);
    margin-bottom: 1.5rem;
}

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

.footer-col ul li {
    margin-bottom: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-col a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-col a:hover {
    color: var(--light-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* === Equipment Placeholder === */
.equipment-placeholder {
    text-align: center;
    padding: 8rem 3rem;
    background: var(--gray-bg);
    border-radius: 12px;
    max-width: 900px;
    margin: 0 auto;
}

.placeholder-icon {
    font-size: 6rem;
    margin-bottom: 2.5rem;
    opacity: 0.4;
}

.equipment-placeholder h2 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
}

.equipment-placeholder p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.equipment-placeholder .btn {
    margin-top: 2.5rem;
}

/* === Hamburger Menu === */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    transition: all 0.3s ease;
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background-color: var(--dark-color);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(10.5px) rotate(45deg);
}

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

.hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-10.5px) rotate(-45deg);
}

/* Prevent body scroll when menu is open */
body.menu-open {
    overflow: hidden;
}

/* === Responsive Design === */
@media (max-width: 992px) {
    /* Show hamburger menu on mobile */
    .hamburger {
        display: flex !important;
    }

    /* Hide regular menu and show mobile navigation */
    .nav-menu {
        position: fixed;
        right: -100%;
        top: 73px;
        flex-direction: column;
        background-color: var(--light-color);
        width: 100%;
        max-width: 400px;
        height: calc(100vh - 73px);
        padding: 2rem;
        gap: 0;
        box-shadow: -4px 0 20px rgba(0,0,0,0.1);
        transition: right 0.3s ease-in-out;
        overflow-y: auto;
        z-index: 1000;
        -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    }

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

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu a {
        display: block;
        padding: 1.25rem 0;
        font-size: 1.1rem;
        border-bottom: none !important;
    }

    .nav-menu a:hover,
    .nav-menu a.active {
        color: var(--accent-color);
        background-color: var(--gray-bg);
        padding-left: 1rem;
        transition: all 0.2s ease;
    }

    /* Ensure proper stacking */
    header {
        position: sticky;
        top: 0;
        background-color: var(--light-color);
        z-index: 999;
    }

    .hero-content h2 {
        font-size: 2.5rem;
    }

    .about-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.25rem;
    }

    .tech-content,
    .rd-grid,
    .contacts-grid,
    .visit-content {
        grid-template-columns: 1fr;
    }

    .solution-item,
    .solution-item.reverse {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .solution-item.reverse .solution-image {
        order: 0;
    }

    .equipment-card {
        grid-template-columns: 1fr;
    }

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

    .rd-stats {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .coverage-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .hero {
        padding: 5rem 0;
    }

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

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

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

    .rd-stats {
        grid-template-columns: 1fr;
    }

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

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

    .coverage-list {
        grid-template-columns: 1fr;
    }

    .process-step {
        grid-template-columns: 80px 1fr;
        gap: 2rem;
    }

    .step-number {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }

    .process-step::after {
        left: 40px;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .advantages-grid,
    .options-grid,
    .competency-grid,
    .custom-grid,
    .lab-grid,
    .partners-list,
    .departments-grid,
    .category-list,
    .support-plans {
        grid-template-columns: 1fr;
    }
}

/* === Scroll to Top Button === */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--accent-color);
    color: var(--light-color);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 999;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.scroll-to-top:hover {
    background-color: #e67e22;
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* === Form Error States === */
.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #e74c3c;
    background-color: #fee;
}

/* === Loading State === */
body {
    opacity: 1;
    transition: opacity 0.3s ease;
}

body.loaded img {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* === Utility Classes === */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.p-1 { padding: 1rem; }
.p-2 { padding: 2rem; }
.p-3 { padding: 3rem; }