:root {
    --color-primary: #FF6B35;
    --color-white: #FFFFFF;
    --color-gray: #2C2C2C;
    --color-gray-light: #4A4A4A;
    --color-gray-lighter: #E5E5E5;
    --color-black: #1A1A1A;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --spacing-unit: 8px;
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-gray);
    background-color: var(--color-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
}

.site-header {
    background-color: var(--color-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: calc(var(--spacing-unit) * 2) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 1.5);
    text-decoration: none;
    color: var(--color-gray);
    font-size: 24px;
    font-weight: 700;
    transition: transform var(--transition);
}

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

.logo-icon {
    font-size: 32px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: calc(var(--spacing-unit) * 1);
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-gray);
    transition: var(--transition);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: calc(var(--spacing-unit) * 4);
}

.main-nav a {
    text-decoration: none;
    color: var(--color-gray);
    font-weight: 500;
    padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 2);
    border-radius: calc(var(--spacing-unit) * 1);
    transition: var(--transition);
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 80%;
}

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

.hero {
    background: linear-gradient(135deg, var(--color-gray) 0%, var(--color-black) 100%);
    color: var(--color-white);
    padding: calc(var(--spacing-unit) * 15) 0 calc(var(--spacing-unit) * 12);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(100px, 100px);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero h1 {
    font-size: 56px;
    line-height: 1.2;
    margin-bottom: calc(var(--spacing-unit) * 3);
    animation: fadeInUp 0.8s ease;
}

.hero p {
    font-size: 20px;
    line-height: 1.5;
    margin-bottom: calc(var(--spacing-unit) * 4);
    opacity: 0.9;
    animation: fadeInUp 1s ease;
}

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

.btn {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 4);
    background-color: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
    border-radius: calc(var(--spacing-unit) * 1);
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid var(--color-primary);
    cursor: pointer;
    font-size: 16px;
}

.btn:hover {
    background-color: #E65A2B;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 107, 53, 0.3);
}

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

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

.section {
    padding: calc(var(--spacing-unit) * 10) 0;
}

.section-title {
    text-align: center;
    font-size: 42px;
    margin-bottom: calc(var(--spacing-unit) * 2);
    color: var(--color-gray);
    position: relative;
    padding-bottom: calc(var(--spacing-unit) * 2);
}

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

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--color-gray-light);
    margin-bottom: calc(var(--spacing-unit) * 6);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.grid {
    display: grid;
    gap: calc(var(--spacing-unit) * 4);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

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

.card {
    background: var(--color-white);
    border-radius: calc(var(--spacing-unit) * 2);
    padding: calc(var(--spacing-unit) * 4);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    border: 1px solid var(--color-gray-lighter);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.card-icon {
    font-size: 48px;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.card h3 {
    font-size: 24px;
    margin-bottom: calc(var(--spacing-unit) * 2);
    color: var(--color-gray);
}

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

.form-group {
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.form-group label {
    display: block;
    margin-bottom: calc(var(--spacing-unit) * 1);
    font-weight: 600;
    color: var(--color-gray);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: calc(var(--spacing-unit) * 2);
    border: 2px solid var(--color-gray-lighter);
    border-radius: calc(var(--spacing-unit) * 1);
    font-family: var(--font-sans);
    font-size: 16px;
    transition: var(--transition);
    background-color: var(--color-white);
    color: var(--color-gray);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
    border-color: #DC3545;
}

.form-error {
    color: #DC3545;
    font-size: 14px;
    margin-top: calc(var(--spacing-unit) * 1);
    display: none;
}

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

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: calc(var(--spacing-unit) * 1.5);
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 4px;
}

.checkbox-group label {
    margin-bottom: 0;
}

.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    border: 2px solid var(--color-gray-lighter);
    border-radius: calc(var(--spacing-unit) * 1);
    margin-bottom: calc(var(--spacing-unit) * 2);
    overflow: hidden;
    transition: var(--transition);
}

.accordion-item:hover {
    border-color: var(--color-primary);
}

.accordion-header {
    background: var(--color-white);
    padding: calc(var(--spacing-unit) * 3);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--color-gray);
    font-size: 18px;
    transition: var(--transition);
}

.accordion-header:hover {
    background: rgba(255, 107, 53, 0.05);
}

.accordion-icon {
    transition: transform var(--transition);
    font-size: 24px;
    color: var(--color-primary);
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-body {
    padding: calc(var(--spacing-unit) * 3);
    color: var(--color-gray-light);
    line-height: 1.6;
}

.site-footer {
    background: var(--color-gray);
    color: var(--color-white);
    padding: calc(var(--spacing-unit) * 8) 0 calc(var(--spacing-unit) * 4);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: calc(var(--spacing-unit) * 6);
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.footer-col h3,
.footer-col h4 {
    margin-bottom: calc(var(--spacing-unit) * 3);
    color: var(--color-white);
}

.footer-col p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

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

.footer-col ul li {
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--color-primary);
}

.social-links {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
    margin-top: calc(var(--spacing-unit) * 2);
}

.social-links a {
    color: var(--color-white);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--color-primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: calc(var(--spacing-unit) * 4);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

.cookie-popup {
    position: fixed;
    bottom: calc(var(--spacing-unit) * 3);
    right: calc(var(--spacing-unit) * 3);
    background: var(--color-white);
    border-radius: calc(var(--spacing-unit) * 2);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    max-width: 450px;
    z-index: 10000;
    animation: slideInUp 0.5s ease;
    display: none;
}

.cookie-popup.show {
    display: block;
}

@keyframes slideInUp {
    from {
        transform: translateY(100px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.cookie-content {
    padding: calc(var(--spacing-unit) * 3);
}

.cookie-text h3 {
    color: var(--color-gray);
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    font-size: 20px;
}

.cookie-text p {
    color: var(--color-gray-light);
    margin-bottom: calc(var(--spacing-unit) * 2);
    line-height: 1.5;
    font-size: 14px;
}

.cookie-text a {
    color: var(--color-primary);
    text-decoration: none;
}

.cookie-text a:hover {
    text-decoration: underline;
}

.cookie-actions {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
}

.btn-cookie-accept,
.btn-cookie-settings,
.btn-cookie-save {
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 3);
    border: none;
    border-radius: calc(var(--spacing-unit) * 1);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
}

.btn-cookie-accept {
    background: var(--color-primary);
    color: var(--color-white);
    flex: 1;
}

.btn-cookie-accept:hover {
    background: #E65A2B;
}

.btn-cookie-settings {
    background: transparent;
    color: var(--color-gray);
    border: 2px solid var(--color-gray-lighter);
}

.btn-cookie-settings:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.cookie-settings-panel {
    padding: calc(var(--spacing-unit) * 3);
    border-top: 1px solid var(--color-gray-lighter);
    display: none;
}

.cookie-settings-panel.show {
    display: block;
}

.cookie-settings-panel h4 {
    color: var(--color-gray);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.cookie-option {
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.cookie-option label {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 1.5);
    font-weight: 600;
    color: var(--color-gray);
    cursor: pointer;
}

.cookie-option p {
    margin-top: calc(var(--spacing-unit) * 1);
    font-size: 14px;
    color: var(--color-gray-light);
    padding-left: calc(var(--spacing-unit) * 4);
}

.btn-cookie-save {
    width: 100%;
    background: var(--color-primary);
    color: var(--color-white);
    margin-top: calc(var(--spacing-unit) * 2);
}

.btn-cookie-save:hover {
    background: #E65A2B;
}

.contact-info {
    list-style: none;
}

.contact-info li {
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background: var(--color-white);
        padding: calc(var(--spacing-unit) * 3);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
    }

    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .main-nav ul {
        flex-direction: column;
        gap: calc(var(--spacing-unit) * 2);
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 18px;
    }

    .section-title {
        font-size: 32px;
    }

    .cookie-popup {
        left: calc(var(--spacing-unit) * 2);
        right: calc(var(--spacing-unit) * 2);
        max-width: none;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
    opacity: 1;
}