:root {
    --primary-color: #000000;
    --accent-color: #ff5722;
    --light-bg-color: #f2f2f2;
    --white-color: #ffffff;
    --line-weight: 3px;
    --shadow-pop: 5px 5px 0 0 var(--primary-color);
    --base-padding: 140px;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--primary-color);
    background-color: var(--white-color);
    scroll-behavior: smooth;
    font-size: 16px;
}

a {
    text-decoration: none;
    color: inherit;
}

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

.main-section {
    padding: var(--base-padding) 0;
    border-top: var(--line-weight) solid var(--primary-color);
}

.section-heading {
    font-family: 'Oswald', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: var(--primary-color);
    text-transform: uppercase;
}

.section-heading::after {
    content: '';
    display: block;
    width: 80px;
    height: var(--line-weight);
    background-color: var(--accent-color);
    margin: 15px auto 100px auto;
}

.section-subheading {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 80px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: #666;
}

.primary-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white-color);
    padding: 18px 45px;
    font-weight: 700;
    border-radius: 0;
    text-transform: uppercase;
    border: var(--line-weight) solid var(--primary-color);
    box-shadow: var(--shadow-pop);
    transition: all 0.2s ease;
}

.primary-button:hover {
    background-color: var(--primary-color);
    color: var(--accent-color);
    transform: translate(-3px, -3px);
    box-shadow: 8px 8px 0 0 var(--accent-color);
}

.secondary-button {
    background-color: var(--primary-color);
    color: var(--accent-color);
    padding: 18px 45px;
    border-radius: 0;
    border: var(--line-weight) solid var(--primary-color);
    font-weight: 700;
    text-transform: uppercase;
    transition: all 0.2s ease;
    display: block;
    width: 100%;
}

.secondary-button:hover {
    background-color: var(--accent-color);
    color: var(--primary-color);
}


.main-header {
    background-color: var(--primary-color);
    padding: 25px 0;
    border-bottom: var(--line-weight) solid var(--white-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.main-header .site-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-brand {
    font-family: 'Oswald', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white-color);
    transition: color 0.1s;
}

.logo-accent {
    color: var(--accent-color);
}

.main-nav .nav-link {
    color: var(--white-color);
    font-weight: 700;
    text-transform: uppercase;
    padding-bottom: 5px;
    position: relative;
    margin-left: 45px;
    text-decoration: none;
    transition: all 0.05s ease-out;
}

.main-nav .nav-link:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
    text-shadow:
        2px 2px 0 var(--white-color),
        -2px -2px 0 var(--primary-color);
}


.intro-area {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('hero-section.jpg') no-repeat center center/cover;
    color: var(--white-color);
    min-height: 95vh;
    display: flex;
    align-items: center;
    text-align: center;
}

.intro-content {
    max-width: 900px;
    margin: 0 auto;
}

.intro-content h1 {
    font-family: 'Oswald', sans-serif;
    font-size: 5.5rem;
    margin-bottom: 40px;
    line-height: 1;
    text-shadow: 4px 4px 0 var(--accent-color);
}

.intro-content p {
    font-size: 1.4rem;
    margin-bottom: 80px;
}


.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    padding: 40px;
    border: var(--line-weight) solid var(--primary-color);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card img {
    height: 150px;
    width: auto;
    margin: 0 auto 15px auto;
}

.feature-card h3 {
    margin-bottom: 10px;
}

.feature-card p {
    margin-top: 15px;
}


.service-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.service-card {
    border: var(--line-weight) solid var(--primary-color);
    box-shadow: var(--shadow-pop);
}

.service-card img {
    width: 100%;
    display: block;
    height: auto;
}

.card-text-content {
    padding: 25px;
    border-top: var(--line-weight) solid var(--primary-color);
}

.card-text-content p {
    margin-top: 10px;
}


.process-section {
    padding: 100px 0;
}

.step-flow {
    display: flex;
    justify-content: space-between;
    text-align: center;
    gap: 40px;
}

.flow-item {
    padding-top: 20px;
    flex: 1;
}

.flow-item h4 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.3rem;
}

.flow-item p {
    margin-top: 10px;
}

.item-number {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--accent-color);
    border: var(--line-weight) solid var(--primary-color);
    margin: 0 auto 30px auto;
    font-family: 'Oswald', sans-serif;
}


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

.photo-comparison-grid {
    display: flex;
    justify-content: center;
    gap: 50px;
}

.photo-pair {
    display: flex;
    border: var(--line-weight) solid var(--primary-color);
    padding: 8px;
    background-color: var(--white-color);
    box-shadow: var(--shadow-pop);
    position: relative;
    max-width: 500px;
}

.photo-pair img {
    width: calc(50% - 4px);
    display: block;
    margin: 0 4px;
}

.photo-label {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: var(--accent-color);
    padding: 5px 15px;
    font-weight: 700;
    border: var(--line-weight) solid var(--accent-color);
    text-transform: uppercase;
    font-family: 'Oswald', sans-serif;
}


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

.pricing-section .section-heading {
    color: var(--white-color);
}

.pricing-section .section-heading::after {
    background-color: var(--white-color);
}

.price-table {
    width: 80%;
    margin: 60px auto;
    border: none;
    box-shadow: none;
    border-collapse: separate;
    border-spacing: 0;
    border: var(--line-weight) solid var(--white-color);
    box-shadow: 0 0 15px rgba(255, 87, 34, 0.7);
}

.price-table th, .price-table td {
    padding: 20px 30px;
    text-align: left;
    border-bottom: 1px solid var(--white-color);
    border-right: 1px solid var(--white-color);
}

.price-table th {
    background-color: var(--accent-color);
    color: var(--primary-color);
    text-transform: uppercase;
    font-size: 1.1rem;
    border-bottom: none;
}

.price-table tr:last-child td {
    border-bottom: none;
}

.price-table tr:nth-child(even) {
    background-color: #1a1a1a;
}

.price-table tr:hover {
    background-color: #333333;
    cursor: pointer;
}

.price-value {
    color: var(--accent-color);
    font-weight: 700;
    font-family: 'Oswald', sans-serif;
    font-size: 1.4rem;
}

.pricing-note {
    text-align: center;
    margin-top: 30px;
    font-size: 1rem;
    color: var(--light-bg-color);
}

@media (max-width: 600px) {
    .price-table th, .price-table td {
        padding: 15px 15px;
    }
}
.articles-section {
    background-color: var(--light-bg-color);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 50px;
}

.article-card {
    border: var(--line-weight) solid var(--primary-color);
    box-shadow: var(--shadow-pop);
    background-color: var(--white-color);
    transition: transform 0.2s ease;
}

.article-card:hover {
    transform: translate(-3px, -3px);
    box-shadow: 8px 8px 0 0 var(--accent-color);
    cursor: pointer;
}

.card-image-placeholder {
    width: 100%;
    height: 200px;
    background-size: cover;
    background-position: center;
    border-bottom: var(--line-weight) solid var(--primary-color);
}

.article-1 {
    background-image: url('article-carpet.jpg');
}
.article-2 {
    background-image: url('article-myths.jpg');
}
.article-3 {
    background-image: url('article-mold.jpg');
}

.card-content {
    padding: 25px;
}

.card-content h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.read-more-link {
    display: inline-block;
    color: var(--accent-color);
    font-weight: 700;
    margin-top: 15px;
    text-transform: uppercase;
}

@media (max-width: 992px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 600px) {
    .articles-grid {
        grid-template-columns: 1fr;
    }
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: stretch;
}

.contact-info-block {
    padding: 40px;
    background-color: var(--white-color);
    border: var(--line-weight) solid var(--primary-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contact-info-block .section-heading {
    text-align: left;
    margin-left: 0;
    font-size: 2.5rem;
}
.contact-info-block .section-heading::after {
    display: none;
}


.main-contact-form {
    padding: 40px;
    border: var(--line-weight) solid var(--primary-color);
    box-shadow: var(--shadow-pop);
    display: flex;
    flex-direction: column;
}

.main-contact-form input,
.main-contact-form textarea {
    padding: 18px;
    margin-bottom: 25px;
    border: var(--line-weight) solid var(--primary-color);
    font-weight: 500;
    outline: none;
    resize: none;
}

.main-contact-form input:focus,
.main-contact-form textarea:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(255, 87, 34, 0.5);
}

.form-submission-message {
    margin-top: 20px;
    text-align: center;
    font-weight: 700;
    color: var(--accent-color);
    padding: 10px;
    border: var(--line-weight) solid var(--accent-color);
    display: none;
}

.contact-image-placeholder {
    min-height: 550px;
    background: url('contacts-section.jpg') no-repeat center center/cover;
    border: var(--line-weight) solid var(--primary-color);
    box-shadow: var(--shadow-pop);
}


.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.6);
}

.modal-content {
    background-color: var(--white-color);
    margin: 15% auto;
    padding: 30px;
    border: 3px solid var(--primary-color);
    box-shadow: 10px 10px 0 0 var(--accent-color);
    width: 90%;
    max-width: 400px;
    text-align: center;
    position: relative;
}

.close-button {
    color: var(--primary-color);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 10px;
    right: 20px;
    transition: color 0.2s;
}

.close-button:hover,
.close-button:focus {
    color: var(--accent-color);
}

.modal-content h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.modal-content .primary-button {
    margin-top: 15px;
}

.site-footer {
    background-color: var(--primary-color);
    color: var(--accent-color);
    padding: 40px 0;
    font-size: 0.9rem;
    border-top: var(--line-weight) solid var(--primary-color);
    text-transform: uppercase;
    font-weight: 600;
}

.site-footer .site-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.footer-details p {
    margin: 5px 0;
}


@media (max-width: 992px) {

    :root {
        --base-padding: 80px;
    }

    .main-section {
        padding: var(--base-padding) 0;
    }

    .intro-content h1 {
        font-size: 4rem;
        margin-bottom: 30px;
    }

    .intro-content p {
        font-size: 1.2rem;
        margin-bottom: 50px;
    }

    .section-heading {
        font-size: 2.8rem;
    }

    .section-heading::after {
        margin-bottom: 60px;
    }

    .feature-grid,
    .service-cards-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .contact-grid {
        gap: 40px;
    }

    .price-table {
        width: 100%;
    }

    .photo-comparison-grid {
        gap: 20px;
    }
    .photo-pair {
        max-width: 450px;
    }
}

@media (max-width: 600px) {

    .site-container {
        padding: 0 15px;
    }

    .main-header .site-container {
        justify-content: center;
    }
    .main-nav {
        display: none;
    }

    .intro-content h1 {
        font-size: 3rem;
    }

    .feature-grid,
    .service-cards-grid,
    .photo-comparison-grid,
    .contact-grid,
    .step-flow {
        grid-template-columns: 1fr;
        flex-direction: column;
        gap: 40px;
    }

    .step-flow {
        gap: 30px;
    }

    .contact-image-placeholder {
        display: none;
    }

    .contact-info-block .section-heading {
        font-size: 2rem;
    }

    .photo-pair {
        flex-direction: row;
    }
    .photo-pair img {
        width: 50%;
        margin: 0;
    }

    .site-footer .site-container {
        flex-direction: column;
        text-align: center;
    }
    .footer-details {
        margin-top: 15px;
    }
}
.readmore {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white-color);
    padding: 18px 45px;
    font-weight: 700;
    border-radius: 0;
    text-transform: uppercase;
    border: var(--line-weight) solid var(--primary-color);
    box-shadow: var(--shadow-pop);
    transition: all 0.2s 
ease;
}

.readmore:hover {
        background-color: var(--primary-color);
    color: var(--accent-color);
    transform: translate(-3px, -3px);
    box-shadow: 8px 8px 0 0 var(--accent-color);
}