:root {
    --color-primary: #1a8c4a;
    --color-primary-dark: #146d3a;
    --color-accent: #e8661b;
    --color-accent-light: #ff8c42;
    --color-bg: #f8faf8;
    --color-white: #ffffff;
    --color-dark: #1a1a1a;
    --color-gray: #6b7280;
    --color-gray-light: #e5e7eb;
    --color-border: #d1d5db;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s ease;
    --max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--color-dark);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.site-header {
    position: static;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-gray-light);
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-dark);
    font-weight: 800;
    font-size: 1.25rem;
}

.logo-img {
    display: block;
    height: 44px;
    width: auto;
}

.logo-text {
    font-weight: 700;
    font-size: 1.4rem;
    color: #1e293b;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
}

.main-nav {
    display: flex;
    gap: 28px;
    align-items: center;
}

.main-nav a {
    text-decoration: none;
    color: var(--color-dark);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    position: relative;
}

.main-nav a:hover {
    color: var(--color-primary);
}

.nav-cta {
    background: var(--color-accent);
    color: white !important;
    padding: 8px 18px;
    border-radius: var(--radius-md);
    font-weight: 600;
}

.nav-cta:hover {
    background: var(--color-accent-light);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-dark);
    cursor: pointer;
    padding: 8px;
}

/* Hero */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 50%, #fff7ed 100%);
    position: relative;
    overflow: hidden;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-primary);
    color: white;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    color: var(--color-dark);
}

.hero-title .accent {
    color: var(--color-primary);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-gray);
    margin-bottom: 32px;
    max-width: 540px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    color: white;
    box-shadow: 0 8px 24px rgba(232, 102, 27, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(232, 102, 27, 0.4);
}

.btn-large {
    padding: 18px 32px;
    font-size: 1.05rem;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 48px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-gray);
}

/* Hero visual (фото + видео) */
.hero-visual {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.hero-image-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-burner-img {
    max-width: 100%;
    width: 520px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
    transition: var(--transition);
}

.hero-burner-img:hover {
    transform: translateY(-6px) scale(1.02);
    filter: drop-shadow(0 28px 50px rgba(0, 0, 0, 0.2));
}

.hero-video-wrap {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    background: #000;
}

.hero-video-wrap iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
    color: var(--color-dark);
}

.section-lead {
    text-align: center;
    color: var(--color-gray);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 48px;
}

/* Problem */
.problem {
    background: var(--color-white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.problem-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
}

.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.problem-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
    color: #dc2626;
}

.problem-card:nth-child(2) .problem-icon {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #d97706;
}

.problem-card:nth-child(3) .problem-icon {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #dc2626;
}

.problem-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.problem-card p {
    color: var(--color-gray);
    font-size: 0.95rem;
}

/* Solution */
.solution {
    background: var(--color-bg);
}

.solution-header {
    margin-bottom: 48px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
    border: 1px solid var(--color-gray-light);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.3rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--color-gray);
    font-size: 0.95rem;
}

/* How it works */
.how-it-works {
    background: var(--color-white);
}

.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

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

.step-number {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 32px;
    background: var(--color-accent);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    color: var(--color-primary);
}

.step h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

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

/* Economics */
.economics {
    background: var(--color-bg);
}

.table-wrapper {
    overflow-x: auto;
    margin-bottom: 16px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-white);
    font-size: 0.9rem;
}

.data-table th {
    background: var(--color-dark);
    color: white;
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-gray-light);
    white-space: nowrap;
}

.data-table tr:hover {
    background: #f9fafb;
}

.data-table tr.highlight {
    background: #f0fdf4;
    font-weight: 600;
}

.data-table tr.highlight:hover {
    background: #dcfce7;
}

.fuel-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
}

.fuel-badge.diesel {
    background: #fee2e2;
    color: #991b1b;
}

.fuel-badge.gas {
    background: #fef3c7;
    color: #92400e;
}

.fuel-badge.solid {
    background: #dcfce7;
    color: #166534;
}

.cost-high {
    color: #dc2626;
    font-weight: 600;
}

.cost-medium {
    color: #d97706;
    font-weight: 600;
}

.cost-low {
    color: #16a34a;
    font-weight: 700;
}

.from-diesel {
    font-size: 0.8rem;
    color: var(--color-gray);
    font-weight: 400;
}

.table-note {
    text-align: center;
    color: var(--color-gray);
    font-size: 0.9rem;
    margin-bottom: 48px;
}

.chart-title {
    font-size: 1.3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 24px;
}

.chart-wrapper {
    max-width: 800px;
    margin: 0 auto 16px;
    background: var(--color-white);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.chart-note {
    text-align: center;
    color: var(--color-gray);
    font-size: 0.85rem;
}

/* Models */
.models {
    background: var(--color-white);
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.model-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    position: relative;
    transition: var(--transition);
    border: 2px solid transparent;
}

.model-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.model-card.featured {
    background: linear-gradient(135deg, #f0fdf4, #ffffff);
    border-color: var(--color-primary);
}

.model-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    padding: 4px 14px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
}

.model-power {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-dark);
    margin-bottom: 8px;
}

.model-power span {
    font-size: 1rem;
    color: var(--color-gray);
    font-weight: 500;
}

.model-card p {
    color: var(--color-gray);
    font-size: 0.9rem;
}

.applications {
    text-align: center;
    margin-bottom: 48px;
}

.applications h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.app-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.app-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-white);
    border: 1px solid var(--color-gray-light);
    padding: 10px 18px;
    border-radius: 100px;
    font-size: 0.9rem;
    color: var(--color-dark);
    font-weight: 500;
}

.app-tag i {
    color: var(--color-primary);
}

/* Галерея */
.gallery {
    padding: 100px 0;
    background: #f8fafc;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.gallery-item {
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    background: #fff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s, box-shadow 0.3s;
    aspect-ratio: 4 / 3;
}

.gallery-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 30px rgba(0, 0, 0, 0.08);
}

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

/* Лайтбокс */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    border: none;
    color: white;
    font-size: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close {
    top: 30px;
    right: 30px;
}

.lightbox-prev {
    left: 30px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.35);
}

/* Видео-плейсхолдер (если нужен) */
.video-section {
    max-width: 800px;
    margin: 0 auto;
}

.video-placeholder {
    background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
    border-radius: var(--radius-lg);
    padding: 64px 32px;
    text-align: center;
    color: var(--color-gray);
    border: 2px dashed var(--color-border);
}

.video-placeholder i {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.video-placeholder p {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-dark);
}

.video-hint {
    font-size: 0.85rem;
}

/* Testimonials */
.testimonials {
    background: var(--color-bg);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
    border: 1px solid var(--color-gray-light);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.testimonial-stars {
    color: #fbbf24;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.testimonial-text {
    font-style: italic;
    color: var(--color-dark);
    margin-bottom: 20px;
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    background: var(--color-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray);
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-info strong {
    font-weight: 700;
    font-size: 0.95rem;
}

.author-info span {
    font-size: 0.85rem;
    color: var(--color-gray);
}

/* FAQ */
.faq {
    background: var(--color-white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-light);
    overflow: hidden;
}

.faq-item summary {
    padding: 20px 24px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 1.05rem;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--color-primary);
    font-weight: 300;
}

.faq-item[open] summary::after {
    content: '−';
}

.faq-content {
    padding: 0 24px 20px;
    color: var(--color-gray);
    line-height: 1.7;
}

/* Contact */
.contact {
    background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%);
}

.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-content .section-title {
    text-align: left;
    margin-bottom: 16px;
}

.contact-subtitle {
    color: var(--color-gray);
    font-size: 1.1rem;
    margin-bottom: 24px;
}

.contact-benefits {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-benefits li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
}

.contact-benefits i {
    color: var(--color-primary);
    font-size: 1.2rem;
}

.contact-form {
    background: var(--color-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-gray-light);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 6px;
    color: var(--color-dark);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--color-white);
    color: var(--color-dark);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 140, 74, 0.1);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.form-privacy {
    font-size: 0.75rem;
    color: var(--color-gray);
    text-align: center;
    margin-top: 16px;
}

/* Footer */
.site-footer {
    background: var(--color-dark);
    color: white;
    padding: 60px 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 2fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
    color: white;
    margin-bottom: 12px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-contact p {
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.footer-contact a:hover {
    color: white;
}

.footer-contact i {
    color: var(--color-primary);
    margin-right: 8px;
    width: 16px;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

/* ==============================
   Адаптивность
   ============================== */

/* Планшеты (до 992px) */
@media (max-width: 992px) {
    .hero-inner {
        display: flex;
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        width: 100%;
        order: 0;
    }

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

    .contact-content .section-title {
        text-align: center;
    }

    .contact-subtitle {
        text-align: center;
    }

    .contact-benefits {
        align-items: center;
    }

    .problem-grid,
    .features-grid,
    .models-grid,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

/* Телефоны (до 768px) */
@media (max-width: 768px) {
    /* === ШАПКА И МЕНЮ === */
    .site-header {
        height: auto;
        min-height: 72px;
        overflow: visible;
        padding: 12px 0;
        background: rgba(255, 255, 255, 0.98) !important;
    }

    .header-inner {
        height: auto;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }

    .mobile-menu-toggle {
        display: none !important;
    }

    .main-nav {
        display: flex !important;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
        margin-top: 8px;
        width: 100%;
        position: static;
        background: transparent;
        box-shadow: none;
        padding: 0;
    }

    .main-nav a {
        font-size: 0.85rem;
        padding: 6px 10px;
        white-space: nowrap;
    }

    .nav-cta {
        padding: 6px 12px;
        font-size: 0.85rem;
    }

    /* === ОСТАЛЬНЫЕ СТИЛИ (без изменений) === */
    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 1.9rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .problem-grid,
    .features-grid,
    .steps,
    .models-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-brand .logo {
        justify-content: center;
    }

    .footer-links {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .btn-large {
        padding: 16px 24px;
        font-size: 1rem;
    }

    .data-table {
        font-size: 0.8rem;
    }

    .data-table th,
    .data-table td {
        padding: 10px 12px;
    }

    .contact-form {
        padding: 24px;
    }

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

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

    .lightbox-prev,
    .lightbox-next {
        font-size: 1.5rem;
        width: 40px;
        height: 40px;
    }
}

/* Очень маленькие экраны (до 480px) */
@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

/* Межсекционные отступы */
section + section {
    padding-top: 80px;
}