/* Страница 404 */
.error-404 {
    min-height: 80vh;
    display: flex;
    align-items: center;
    padding: 60px 0;
    background: var(--color-bg);
}

.error-404 .container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.error-content {
    text-align: center;
    margin-bottom: 60px;
}

.error-number {
    font-size: 120px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 20px;
    text-shadow: 3px 3px 0 rgba(205, 45, 37, 0.1);
}

.error-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 20px;
}

.error-description {
    font-size: 18px;
    color: var(--color-gray);
    margin-bottom: 40px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.error-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.error-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

.error-button.primary {
    background: var(--color-primary);
    color: var(--color-light);
}

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

.error-button.secondary {
    background: transparent;
    color: var(--color-dark);
    border-color: var(--color-light-dark);
}

.error-button.secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.error-search {
    max-width: 500px;
    margin: 0 auto;
}

.error-search p {
    margin-bottom: 15px;
    color: var(--color-gray);
}

.error-search .search-form {
    max-width: 100%;
}

/* Блок с рекомендуемыми разделами */
.error-features {
    border-top: 1px solid var(--color-light-dark);
    padding-top: 60px;
}

.error-features h2 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 40px;
    color: var(--color-dark);
}

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

.feature-card {
    display: block;
    padding: 30px;
    background: var(--color-light);
    border-radius: 15px;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid var(--color-light-dark);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-color: var(--color-primary);
}

.feature-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--color-gray);
    line-height: 1.5;
    margin: 0;
}

/* Адаптивность */
@media (max-width: 768px) {
    .error-number {
        font-size: 80px;
    }

    .error-title {
        font-size: 28px;
    }

    .error-description {
        font-size: 16px;
    }

    .error-actions {
        flex-direction: column;
        align-items: center;
    }

    .error-button {
        width: 100%;
        max-width: 300px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-card {
        padding: 25px;
    }
}

@media (max-width: 480px) {
    .error-404 {
        padding: 40px 0;
    }

    .error-number {
        font-size: 60px;
    }

    .error-title {
        font-size: 24px;
    }

    .error-features h2 {
        font-size: 24px;
    }

    .feature-icon {
        font-size: 40px;
    }
}

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

.error-content > * {
    animation: fadeInUp 0.6s ease forwards;
}

.error-content > *:nth-child(1) { animation-delay: 0.1s; }
.error-content > *:nth-child(2) { animation-delay: 0.2s; }
.error-content > *:nth-child(3) { animation-delay: 0.3s; }
.error-content > *:nth-child(4) { animation-delay: 0.4s; }
.error-content > *:nth-child(5) { animation-delay: 0.5s; }