:root {
    --color-primary: #E53935;
    --color-primary-dark: #C62828;
    --color-black: #212121;
    --color-white: #FFFFFF;
    --color-gray: #757575;
    --color-light: #F5F5F5;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: #424242;
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

.hero {
    background: linear-gradient(135deg, var(--color-black) 0%, #424242 100%);
    color: var(--color-white);
    padding: 60px 0 80px;
    text-align: center;
}

.hero-logo {
    max-width: 250px;
    height: auto;
    margin-bottom: 30px;
    border-radius: 15px;
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--color-white);
    opacity: 0.9;
}

.hero-slogan {
    font-size: 1.5rem;
    margin-bottom: 32px;
    color: var(--color-primary);
    font-weight: 700;
}

.section {
    padding: 60px 0;
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 40px;
    color: var(--color-black);
}

.how-it-works {
    background-color: var(--color-light);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.step {
    text-align: center;
    padding: 30px;
    background: var(--color-white);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 1.5rem;
    font-weight: bold;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.step h3 {
    margin-bottom: 10px;
    color: var(--color-black);
}

.benefits {
    background-color: var(--color-white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
}

.benefit-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--color-white);
    border: 2px solid var(--color-light);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.benefit-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 15px;
}

.benefit-card h3 {
    color: var(--color-black);
    margin-bottom: 10px;
}

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

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
}

.product-card {
    background: var(--color-white);
    padding: 30px 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.product-icon {
    font-size: 3.5rem;
    margin-bottom: 15px;
}

.product-card h3 {
    color: var(--color-primary);
    margin-bottom: 10px;
}

.contact {
    background-color: var(--color-white);
}

.contact-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    width: 100%;
    max-width: 800px;
}

.contact-item {
    padding: 20px;
    background: var(--color-light);
    border-radius: 8px;
    text-align: center;
}

.contact-item strong {
    display: block;
    color: var(--color-primary);
    margin-bottom: 5px;
}

.contact-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    text-align: center;
    padding: 20px 0;
}

.error-page {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.error-page h1 {
    color: var(--color-primary);
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .hero-logo {
        max-width: 180px;
    }

    .hero {
        padding: 40px 0 60px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-slogan {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .contact-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}