:root {
    --color-dark: #323232;
    --color-dark-rgb: 50, 50, 50;
    --color-light: #ffffff;
    --color-text: #2e3538;
    --color-text-light: #727586;
    --color-primary: #e17729;
    --color-primary-dark: #c96620;
    --color-accent-yellow: #f5c518;
    --color-accent-red: #e74c3c;
    --font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --container-width: 1224px;
    --header-height: 80px;
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-light);
}

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

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

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-family);
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent-yellow) 0%, var(--color-primary) 100%);
    color: var(--color-light);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--color-dark-rgb), 0.2);
    color: var(--color-light);
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--color-light);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    z-index: 1000;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    font-weight: 500;
    color: var(--color-text);
}

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

.lang-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--color-text-light);
    border-radius: 4px;
    font-family: var(--font-family);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition);
}

.lang-switch:hover {
    border-color: var(--color-primary);
}

.lang-option {
    color: var(--color-text-light);
    transition: color var(--transition);
}

.lang-option.active {
    color: var(--color-primary);
    font-weight: 700;
}

.lang-divider {
    color: var(--color-text-light);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition);
}

.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: calc(var(--header-height) + 40px) 24px 80px;
    background: var(--color-dark);
    text-align: center;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 700;
    color: var(--color-light);
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
}

.section {
    padding: 80px 0;
}

.section-light {
    background: var(--color-light);
}

.section-dark {
    background: var(--color-dark);
    color: var(--color-light);
}

.section-dark .section-title {
    color: var(--color-light);
}

.section-dark .section-subtitle,
.section-dark p {
    color: rgba(255, 255, 255, 0.9);
}

.section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

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

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

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 24px;
}

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

.section-subtitle {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
}

.section-content p {
    margin-bottom: 16px;
    color: var(--color-text-light);
}

.section-content p:last-child {
    margin-bottom: 0;
}

.section-content .highlight {
    font-weight: 500;
    color: var(--color-text);
}

.section-dark .section-content .highlight {
    color: var(--color-light);
}

.section-icon {
    width: 100%;
    max-width: 350px;
    height: auto;
    margin: 0 auto;
    display: block;
}

.about-logo {
    max-width: 400px;
    margin: 0 auto;
    display: block;
}

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

.benefits-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    font-size: 1.125rem;
}

.benefits-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 12px;
    height: 12px;
    background: linear-gradient(135deg, var(--color-accent-yellow) 0%, var(--color-primary) 100%);
    border-radius: 50%;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 32px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.testimonial-card blockquote p {
    font-size: 1.125rem;
    font-style: italic;
    margin-bottom: 16px;
}

.testimonial-card cite {
    color: var(--color-primary);
    font-style: normal;
    font-weight: 500;
    display: block;
}

.testimonial-role {
    display: block;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 4px;
}

.realize-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 48px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.contact-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 32px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    color: var(--color-light);
}

.contact-card p {
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.7);
}

.contact-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 12px;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    border-radius: 4px;
    transition: all var(--transition);
}

.contact-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-primary);
}

.contact-icon {
    font-size: 1.25rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 500;
    font-size: 14px;
}

.form-group input,
.form-group textarea {
    padding: 14px 16px;
    font-family: var(--font-family);
    font-size: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-light);
    transition: border-color var(--transition);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

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

.contact-form .btn {
    align-self: flex-start;
}

.footer {
    background: var(--color-dark);
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    text-align: center;
}

.footer-logo img {
    height: 40px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

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

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

.footer-copy {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

@media (max-width: 900px) {
    .nav-links {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-light);
        padding: 24px;
        gap: 16px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .section-grid,
    .section-grid-reverse {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .section-grid-reverse {
        direction: ltr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .section {
        padding: 60px 0;
    }
}

@media (max-width: 600px) {
    .hero {
        padding: calc(var(--header-height) + 24px) 16px 60px;
    }

    .container {
        padding: 0 16px;
    }

    .section {
        padding: 48px 0;
    }

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

.form-success {
    background: rgba(0, 176, 144, 0.1);
    border: 1px solid rgba(0, 176, 144, 0.3);
    color: #00b090;
    padding: 16px;
    border-radius: 4px;
    text-align: center;
}

.form-error {
    background: rgba(231, 76, 60, 0.1);
    border: 1px solid rgba(231, 76, 60, 0.3);
    color: #e74c3c;
    padding: 16px;
    border-radius: 4px;
    text-align: center;
}