html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: "Manrope", sans-serif;
    background: #f5f2ed;
    color: #1f1f1f;
}

/* Header */

.site-header {
    background: #f5f2ed;
}

nav {
    height: 110px;
    padding: 0 55px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #ddd6cc;
}

.logo {
    width: 260px;
    height: auto;
    margin-top: 30px;
}

ul {
    list-style: none;
    display: flex;
    gap: 55px;
    margin: 0;
    padding: 0;
    text-transform: uppercase;
}
nav ul li a {
    text-decoration: none;
    color: #1f1f1f;
    padding: 10px 18px;
    border-radius: 30px;
    transition: .3s;
}

nav ul li a:hover {
    background: #1f1f1f;
    color: white;
}

li {
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 1px;
}

/* Hero */

.hero {
    padding: 25px 60px 40px;
    background: #f5f2ed;
}

.hero-text {
    max-width: 1300px;
    margin: 0 auto;
    text-align: center;
}

.hero-text h1 {
    font-size: 40px;
    font-weight: 300;
    line-height: 1.25;
    letter-spacing: -1.5px;
    color: #232323;
    margin: 0;
    white-space: nowrap;
}

/* Collections */

.collections {
    padding: 70px 55px 100px;
    text-align: center;
    background: #ffffff;
}


.collections h2 {
    font-size: 36px;
    font-weight: 400;
    margin: 0 0 45px;
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.collection-card {
    position: relative;
    height: 360px;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    background-size: cover;
    background-position: center;
    transition: transform .35s ease, box-shadow .35s ease;
    box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
.collection-card::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 45%;
    background: linear-gradient(
        to top,
        rgba(0,0,0,.65) 0%,
        rgba(0,0,0,.25) 45%,
        rgba(0,0,0,0) 100%
    );
}
.collection-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 22px 50px rgba(0,0,0,.18);
}




.collection-card h3 {
    position: absolute;
    bottom: 24px;
    left: 24px;
    margin: 0;
    color: white;
    font-size: 27px;
    font-weight: 500;
    text-shadow: 0 2px 12px rgba(0,0,0,.45);
    z-index: 2;
}

.collection-card:nth-child(1) {
    background-image: url("images/large-format.jpg");
}

.collection-card:nth-child(2) {
    background-image: url("images/marble-look.jpg");
}

.collection-card:nth-child(3) {
    background-image: url("images/stone-look.jpg");
}
.collection-card:nth-child(4) {
    background-image: url("images/outdoor.jpg");
}

.collection-card:nth-child(5) {
    background-image: url("images/wood-look.png");
}

.collection-card:nth-child(6) {
    background-image: url("images/concrete.png");
}

.collection-card:nth-child(7) {
    background-image: url("images/terrazzo-look.png");
}

.collection-card:nth-child(8) {
    background-image: url("images/decorative.png");
}

.collection-card:nth-child(9) {
    background-image: url("images/mosaic.png");
}

.collection-card:nth-child(10) {
    background-image: url("images/wall-tile.png");
}

.collection-card:nth-child(11) {
    background-image: url("images/commercial.png");
}

.collection-card:nth-child(12) {
    background-image: url("images/evolution.png");
}

.footer {
    background: #1f1f1f;
    color: #f5f2ed;
    padding: 70px 55px 35px;
}

.footer-brand {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 50px;
}

.footer-logo {
    width: 180px;
    height: auto;
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 18px;
    font-weight: 300;
    color: #d8d0c4;
    margin: 0;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 45px;
    margin-bottom: 35px;
}

.footer-links a {
    color: #f5f2ed;
    text-decoration: none;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-contact {
    text-align: center;
    margin-bottom: 45px;
}

.footer-contact p {
    font-size: 15px;
    color: #cfc6ba;
    margin: 8px 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.15);
    padding-top: 25px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: #aaa;
    margin: 0;
}
/* ==========================
   ABOUT + CONTACT
========================== */
.info-section {
    display: grid;
    grid-template-columns: 50% 50%;
    width: 100%;
    background: #f5f2ed;
}

.info-box {
    padding: 100px 70px;
    text-align: center;
    box-sizing: border-box;
}

.info-box:first-child {
    border-right: 1px solid #ddd6cc;
}

.info-box h2 {
    font-size: 42px;
    font-weight: 400;
    margin-bottom: 40px;
}

.info-box p {
    font-size: 20px;
    line-height: 1.8;
    font-weight: 300;
    color: #555;
    max-width: 550px;
    margin: 0 auto 30px;
}
.contact-button {
    display: inline-block;
    padding: 16px 40px;
    background: #1f1f1f;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    transition: .3s;
}

.contact-button:hover {
    background: #444;
}
/* ==========================
   MOBILE RESPONSIVE
========================== */

@media (max-width: 768px) {

    nav {
        height: auto;
        padding: 25px 20px;
        flex-direction: column;
        gap: 20px;
    }

    .logo {
        width: 190px;
        margin-top: 0;
    }

    ul {
        flex-direction: column;
        gap: 12px;
        align-items: center;
    }

    .hero {
        padding: 35px 20px 45px;
    }

    .hero-text h1 {
        font-size: 34px;
        line-height: 1.3;
        white-space: normal;
    }

    .collections {
        padding: 55px 20px 70px;
    }

    .collection-grid {
        grid-template-columns: 1fr;
    }

    .collection-card {
        height: 300px;
    }

    .info-section {
        grid-template-columns: 1fr;
    }

    .info-box {
        padding: 70px 25px;
    }

    .info-box:first-child {
        border-right: none;
        border-bottom: 1px solid #ddd6cc;
    }

    .footer {
        padding: 60px 25px 35px;
    }

    .footer-links {
        flex-direction: column;
        gap: 18px;
    }
}
/* Article Pages */

.article-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 80px 25px;
    text-align: center;
}

.article-page h1 {
    font-size: 48px;
    font-weight: 400;
    margin-bottom: 40px;
}

.article-image {
    width: 100%;
    max-width: 800px;
    height: auto;
    border-radius: 12px;
    margin-bottom: 40px;
}

.article-page p {
    font-size: 20px;
    line-height: 1.8;
    color: #555;
    font-weight: 300;
    margin-bottom: 30px;
}

.back-link {
    display: inline-block;
    margin-bottom: 40px;
    color: #1f1f1f;
    text-decoration: none;
}
/* ==========================
   KNOWLEDGE CENTER ARTICLES
========================== */

.article-page {
    max-width: 760px;
    margin: 0 auto;
    padding: 70px 24px 60px;
    text-align: center;
}

.article-page h1 {
    font-size: 42px;
    line-height: 1.12;
    font-weight: 400;
    margin: 25px 0 25px;
}

.article-label {
    letter-spacing: 5px;
    font-size: 13px;
    color: #b58b6a;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.article-divider {
    width: 55px;
    height: 1px;
    background: #b58b6a;
    margin: 0 auto 36px;
}

.article-image {
    width: 70%;
    max-width: 620px;
    border-radius: 8px;
    margin: 0 auto 45px;
    display: block;
}

.article-content {
    text-align: left;
    margin: 0 auto;
}

.article-content h2 {
    font-size: 22px;
    font-weight: 500;
    margin-bottom: 22px;
}

.article-content p {
    font-size: 18px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 24px;
}

.article-signature {
    border-top: 1px solid #ddd6cc;
    margin-top: 55px;
    padding-top: 28px;
    text-align: center;
}

.article-signature strong {
    display: block;
    letter-spacing: 4px;
    font-size: 13px;
    color: #b58b6a;
    margin-bottom: 8px;
}

.article-signature em {
    font-size: 18px;
    color: #333;
}

@media (max-width: 768px) {
    .article-page {
        padding: 45px 22px;
    }

    .article-page h1 {
        font-size: 32px;
    }

    .article-image {
        width: 100%;
    }

    .article-content p {
        font-size: 17px;
    }
}
.article-content ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
    margin: 28px 0 42px;
    padding: 0;
    list-style: none;
}

.article-content li {
    background: #f6f3ee;
    border: 1px solid #e2ddd4;
    border-radius: 8px;
    padding: 18px 20px;
    font-size: 16px;
    line-height: 1.45;
    font-weight: 400;
    letter-spacing: normal;
    text-transform: none;
    text-align: left;
}
.back-link {
    display: inline-block;
    padding: 12px 22px;
    margin-bottom: 45px;
    border: 1px solid #d8d8d8;
    border-radius: 999px;
    background: #fafafa;
    color: #333;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all .25s ease;
}

.back-link:hover {
    background: #1f1f1f;
    color: #ffffff;
    border-color: #1f1f1f;
    transform: translateY(-2px);
}
.publication-reference{
    margin-top:24px;
    padding-top:20px;
    border-top:1px solid #e5e5e5;
    font-size:14px;
    line-height:1.8;
    color:#666;
    text-align:center;
}

.publication-reference strong{
    color:#222;
}
.knowledge-page {
    max-width: 980px;
    margin: 0 auto;
    padding: 60px 24px 90px;
}

.knowledge-hero {
    text-align: center;
    padding: 80px 0 70px;
}

.knowledge-hero h1 {
    font-size: clamp(42px, 7vw, 78px);
    letter-spacing: 0.04em;
    margin: 22px 0 24px;
}

.knowledge-hero p {
    max-width: 760px;
    margin: 18px auto;
    font-size: 20px;
    line-height: 1.7;
    color: #444;
}

.knowledge-collection-intro {
    border-top: 1px solid #ddd6ca;
    border-bottom: 1px solid #ddd6ca;
    padding: 42px 0;
    margin-bottom: 30px;
    text-align: center;
}

.knowledge-collection-intro h2 {
    font-size: 30px;
    margin-bottom: 20px;
}

.knowledge-meta {
    display: flex;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
    color: #666;
    font-size: 14px;
}

.knowledge-meta span {
    border: 1px solid #ddd6ca;
    padding: 8px 14px;
    border-radius: 999px;
}

.publication-list {
    display: grid;
    gap: 18px;
    margin: 50px 0 80px;
}

.publication-item {
    display: block;
    padding: 28px;
    border: 1px solid #ddd6ca;
    border-radius: 14px;
    text-decoration: none;
    color: #222;
    background: #fffdf9;
    transition: all .25s ease;
}

.publication-item:hover {
    transform: translateY(-3px);
    border-color: #1f1f1f;
}

.publication-item span {
    display: inline-block;
    font-size: 13px;
    letter-spacing: .08em;
    color: #777;
    margin-bottom: 12px;
}

.publication-item h3 {
    font-size: 24px;
    margin-bottom: 12px;
}

.publication-item p {
    color: #555;
    line-height: 1.6;
    margin-bottom: 18px;
}

.publication-item em {
    font-style: normal;
    font-weight: 500;
}

.future-collections,
.editorial-standards {
    border-top: 1px solid #ddd6ca;
    padding: 55px 0;
    text-align: center;
}

.future-collections h2,
.editorial-standards h2 {
    font-size: 30px;
    margin-bottom: 26px;
}

.future-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-top: 25px;
}

.future-grid div {
    padding: 18px;
    border: 1px solid #ddd6ca;
    border-radius: 10px;
    background: #f6f3ee;
    color: #333;
}

.editorial-standards p {
    max-width: 720px;
    margin: 16px auto;
    color: #555;
    line-height: 1.7;
}

.knowledge-footer {
    border-top: 1px solid #ddd6ca;
    padding-top: 45px;
    text-align: center;
    color: #444;
}
/* ==========================================================
   ARTICLE ACTIONS
   ========================================================== */

.article-actions{
    display:flex;
    justify-content:center;
    align-items:center;
    gap:20px;
    margin:50px 0;
    flex-wrap:wrap;
}

.action-button{
    flex:1;
    max-width:220px;
    text-align:center;
}

.action-primary{
    flex:1.25;
    max-width:280px;
}