* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: "Estedad", sans-serif;
}

html {
    scroll-behavior: smooth;
}

:root {

    --primary: #00BCD4;
    --primary-dark: #0097A7;

    --dark: #0F172A;
    --dark-2: #1E293B;

    --text: #1F2937;
    --muted: #64748B;

    --background: #F8FAFC;
    --white: #FFFFFF;

    --border: #E2E8F0;

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;

    --shadow-sm:
            0 4px 15px rgba(15, 23, 42, .05);

    --shadow-md:
            0 12px 35px rgba(15, 23, 42, .08);

    --transition: .5s ease;
}

body {

    background: var(--background);

    color: var(--text);

    line-height: 2;

    overflow-x: hidden;
}


/* =================================
   HERO
================================= */

.article-hero {

    min-height: 560px;

    background:
            radial-gradient(
                    circle at 15% 50%,
                    rgba(94, 184, 174, 0.12),
                    transparent 30%
            ),
            linear-gradient(
                    135deg,
                    #0b1120,
                    #111c31
            );

    color: white;

    position: relative;

    overflow: hidden;
}


.article-hero::before {

    content: "";

    position: absolute;

    width: 600px;
    height: 600px;

    border: 1px solid rgba(255,255,255,.07);

    border-radius: 50%;

    left: -250px;
    top: -150px;
}


.article-hero::after {

    content: "";

    position: absolute;

    width: 400px;
    height: 400px;

    border: 1px solid rgba(0, 128, 255, 0.12);

    border-radius: 50%;

    right: -150px;
    bottom: -200px;
}


.hero-content {

    width: 90%;

    max-width: 1350px;

    min-height: 560px;

    margin: auto;

    position: relative;

    z-index: 2;

    display: flex;

    flex-direction: column;

    justify-content: space-between;

    padding: 38px 0;
}


/* TOP */

.hero-top {

    display: flex;

    justify-content: space-between;

    align-items: center;
}


.brand {

    display: flex;

    align-items: center;

    gap: 14px;
}


.brand img {

    width: 115px;

    height: auto;

    filter:
            brightness(0)
            invert(1);

    opacity: .9;
}


.brand-line {

    width: 1px;

    height: 25px;

    background: rgba(255,255,255,.25);
}


.brand span {

    font-size: 11px;

    letter-spacing: 4px;

    color: #d6d6d6;
}


.article-label {

    display: flex;

    align-items: center;

    gap: 12px;

    font-size: 12px;

    color: #c9c9c9;
}


.label-line {

    width: 40px;

    height: 1px;

    background: var(--primary);
}


/* MAIN HERO */

.hero-main {

    display: flex;

    justify-content: space-between;

    align-items: center;

    gap: 50px;
}


.hero-text {

    max-width: 800px;
}


.article-number {

    display: block;

    color: var(--primary-dark);

    font-size: 12px;

    letter-spacing: 3px;

    margin-bottom: 18px;
}


.hero-text h1 {

    font-size: clamp(38px, 5vw, 68px);

    font-weight: 400;

    line-height: 1.45;

    letter-spacing: -2px;

    margin-bottom: 25px;
}


.hero-text h1 strong {

    font-weight: 700;

    color: #ffffff;
}


.hero-text p {

    max-width: 650px;

    color: #b9c0ca;

    font-size: 15px;

    line-height: 2.3;
}


/* SYMBOL */

.hero-symbol {

    width: 300px;

    height: 300px;

    position: relative;

    flex-shrink: 0;
}


.circle-one,
.circle-two {

    position: absolute;

    border-radius: 50%;

    border: 1px solid rgba(94, 181, 184, 0.35);
}


.circle-one {

    width: 250px;
    height: 250px;

    top: 25px;
    left: 25px;
}


.circle-two {

    width: 190px;
    height: 190px;

    top: 55px;
    left: 55px;

    border-color:
            rgba(255,255,255,.15);
}


.yarn-symbol {

    position: absolute;

    width: 95px;
    height: 145px;

    border-radius: 50%;

    border: 2px solid var(--primary);

    top: 78px;
    left: 103px;

    transform: rotate(-25deg);
}


.yarn-symbol::before,
.yarn-symbol::after {

    content: "";

    position: absolute;

    left: 10px;

    right: 10px;

    height: 1px;

    background: var(--primary);

}


.yarn-symbol::before {

    top: 35px;
}


.yarn-symbol::after {

    bottom: 35px;
}


/* BOTTOM */

.hero-bottom {

    border-top: 1px solid rgba(255,255,255,.12);

    padding-top: 20px;

    display: flex;

    gap: 70px;
}


.hero-bottom div {

    display: flex;

    flex-direction: column;

    gap: 3px;
}


.hero-bottom span {

    font-size: 11px;

    color: #7f8998;
}


.hero-bottom strong {

    font-size: 13px;

    font-weight: 500;

    color: #e5e7eb;
}



/* =================================
   ARTICLE WRAPPER
================================= */

.article-wrapper {

    width: 90%;

    max-width: 1250px;

    margin: 90px auto;

    display: grid;

    grid-template-columns: 280px minmax(0, 1fr);

    gap: 70px;

    direction: ltr;
}


.article-sidebar {

    direction: rtl;
}


.sidebar-inner {

    position: sticky;

    top: 35px;

    background:
            rgba(255,255,255,.65);

    border: 1px solid var(--border);

    padding: 28px;

    box-shadow: var(--shadow-sm);
}


.sidebar-title {

    border-bottom: 1px solid var(--border);

    padding-bottom: 20px;

    margin-bottom: 15px;
}


.sidebar-title span {

    display: block;

    color: var(--primary);

    font-size: 10px;

    letter-spacing: 3px;

    direction: ltr;
}


.sidebar-title h3 {

    color: var(--dark);

    font-size: 19px;

    margin-top: 7px;
}


.article-sidebar nav {

    display: flex;

    flex-direction: column;
}


.article-sidebar nav a {

    text-decoration: none;

    color: #64748b;

    display: flex;

    align-items: center;

    gap: 14px;

    padding: 10px 0;

    font-size: 12px;

    border-bottom: 1px solid rgba(218, 224, 226, 0.5);

    transition: .3s;
}


.article-sidebar nav a span {

    color: #a4a9af;

    font-size: 10px;

    direction: ltr;

    transition: .3s;
}


.article-sidebar nav a:hover,
.article-sidebar nav a.active {

    color: var(--dark);

    transform: translateX(-4px);
}


.article-sidebar nav a.active span {

    color: var(--primary);

    font-weight: 700;
}



/* =================================
   ARTICLE
================================= */

.article-content {

    direction: rtl;

    min-width: 0;
}


.article-section {

    scroll-margin-top: 40px;

    margin-bottom: 100px;
}


.section-heading {

    display: flex;

    align-items: flex-start;

    gap: 20px;

    margin-bottom: 35px;
}


.section-heading > span {

    color: var(--primary);

    font-family: Arial, sans-serif;

    font-size: 18px;

    direction: ltr;

    line-height: 1.5;
}


.section-heading small {

    display: block;

    color: #9ca3af;

    font-family: Arial, sans-serif;

    font-size: 9px;

    letter-spacing: 3px;

    direction: ltr;

    margin-bottom: 5px;
}


.section-heading h2 {

    font-size: 28px;

    color: var(--dark);

    line-height: 1.7;

    font-weight: 700;
}


.article-section > p {

    color: #505b66;

    font-size: 15px;

    line-height: 2.4;

    margin-bottom: 20px;
}



/* =================================
   HIGHLIGHT
================================= */

.highlight-box {

    margin-top: 35px;

    padding: 25px;

    background: #fff;

    border-right: 3px solid var(--primary);

    display: flex;

    align-items: flex-start;

    gap: 18px;

    box-shadow:
            0 10px 30px rgba(0,0,0,.04);
}


.highlight-icon {

    width: 38px;

    height: 38px;

    border-radius: 50%;

    border: 1px solid var(--primary);

    color: var(--primary);

    display: flex;

    justify-content: center;

    align-items: center;

    flex-shrink: 0;
}


.highlight-box span {

    color: var(--dark);

    font-size: 13px;

    font-weight: 700;
}


.highlight-box p {

    color: #66727d;

    font-size: 13px;

    margin-top: 3px;
}



/* =================================
   IMAGE
================================= */

.article-image {

    margin-bottom: 100px;

    position: relative;
}


.article-image img {

    width: 100%;

    max-height: 430px;

    object-fit: cover;

    display: block;

    background: #e9e7df;
}


.article-image figcaption {

    font-size: 11px;

    color: #89919a;

    margin-top: 10px;
}



/* =================================
   INFO CARDS
================================= */

.info-grid {

    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 15px;

    margin-top: 35px;
}


.info-card {

    background: #fff;

    border: 1px solid var(--border);

    padding: 25px;

    transition: .35s;
}


.info-card:hover {

    transform: translateY(-5px);

    box-shadow: var(--shadow-sm);
}


.info-card > span {

    color: var(--primary);

    font-family: Arial, sans-serif;

    font-size: 11px;

    direction: ltr;
}


.info-card h3 {

    font-size: 16px;

    color: var(--dark);

    margin: 15px 0 5px;
}


.info-card p {

    color: var(--muted);

    font-size: 12px;

    line-height: 2;
}



/* =================================
   MODERN LIST
================================= */

.modern-list {

    list-style: none;

    margin-top: 30px;

    border-top: 1px solid var(--border);
}


.modern-list li {

    display: flex;

    align-items: center;

    gap: 18px;

    padding: 16px 5px;

    border-bottom: 1px solid var(--border);

    color: #475569;

    font-size: 14px;
}


.modern-list span {

    color: var(--primary);

    font-family: Arial, sans-serif;

    font-size: 10px;
}



/* =================================
   TYPE BOX
================================= */

.type-box {

    display: grid;

    grid-template-columns: 1fr 1fr;

    margin-top: 35px;

    border: 1px solid var(--border);

    background: #fff;
}


.type-box > div {

    padding: 30px;
}


.type-box > div + div {

    border-right: 1px solid var(--border);
}


.type-box strong {

    color: var(--dark);

    font-size: 17px;

    direction: ltr;

    display: block;
}


.type-box p {

    color: var(--muted);

    font-size: 12px;

    margin-top: 8px;
}



/* =================================
   QUOTE
================================= */

.quote {

    background: var(--dark);

    color: white;

    margin-top: 35px;

    padding: 35px;

    position: relative;
}


.quote > span {

    color: var(--primary);

    font-family: Georgia, serif;

    font-size: 70px;

    line-height: .5;
}


.quote p {

    font-size: 15px;

    color: #d7dce3;

    margin-top: 15px;
}



/* =================================
   ADVANTAGES
================================= */

.advantage-grid {

    display: grid;

    grid-template-columns:
        repeat(2, 1fr);

    gap: 15px;

    margin-top: 35px;
}


.advantage-grid > div {

    background: #fff;

    border: 1px solid var(--border);

    padding: 25px;

    transition: .3s;
}


.advantage-grid > div:hover {

    border-color: var(--primary);
}


.advantage-grid span {

    color: var(--primary);

    font-family: Arial, sans-serif;

    font-size: 11px;
}


.advantage-grid h3 {

    color: var(--dark);

    font-size: 15px;

    margin: 12px 0 5px;
}


.advantage-grid p {

    color: var(--muted);

    font-size: 12px;
}



/* =================================
   YARN TABLE
================================= */

.yarn-table {

    margin-top: 35px;

    border: 1px solid var(--border);

    background: white;
}


.yarn-table > div {

    display: grid;

    grid-template-columns:
        1fr 1fr 1fr;

    padding: 17px 20px;

    border-bottom: 1px solid var(--border);

    gap: 15px;
}


.yarn-table > div:last-child {

    border-bottom: none;
}


.yarn-table .table-head {

    background: var(--dark);

    color: white;

    font-size: 11px;
}


.yarn-table strong {

    color: var(--dark);

    font-size: 13px;
}


.yarn-table span {

    color: var(--muted);

    font-size: 12px;
}



/* =================================
   FINAL
================================= */

.final-section {

    margin-bottom: 70px;
}


.final-card {

    margin-top: 40px;

    padding: 45px;

    background:
            linear-gradient(
                    135deg,
                    #0f172a,
                    #1e293b
            );

    color: white;

    position: relative;

    overflow: hidden;
}


.final-card::after {

    content: "";

    position: absolute;

    width: 250px;

    height: 250px;

    border: 1px solid rgba(0, 255, 239, 0.2);

    border-radius: 50%;

    left: -100px;

    bottom: -130px;
}


.final-card > span {

    color: var(--primary-dark);

    font-family: Arial, sans-serif;

    font-size: 10px;

    letter-spacing: 3px;
}


.final-card h3 {

    font-size: 25px;

    margin: 15px 0;
}


.final-card p {

    color: #b9c0ca;

    font-size: 13px;
}



/* =================================
   RELATED
================================= */

.related {

    padding-top: 50px;

    border-top: 1px solid var(--border);
}


.related-title span {

    color: var(--primary);

    font-family: Arial, sans-serif;

    font-size: 9px;

    letter-spacing: 3px;
}


.related-title h2 {

    color: var(--dark);

    font-size: 25px;

    margin-top: 5px;
}


.related-grid {

    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 15px;

    margin-top: 30px;
}


.related-card {

    text-decoration: none;

    background: #fff;

    border: 1px solid var(--border);

    padding: 25px;

    min-height: 200px;

    position: relative;

    transition: .35s;
}


.related-card:hover {

    transform: translateY(-7px);

    box-shadow: var(--shadow-sm);

    border-color: var(--primary);
}


.related-card > span {

    color: var(--primary);

    font-family: Arial, sans-serif;

    font-size: 10px;
}


.related-card h3 {

    color: var(--dark);

    font-size: 15px;

    margin-top: 20px;
}


.related-card p {

    color: var(--muted);

    font-size: 11px;

    margin-top: 5px;
}


.related-card b {

    position: absolute;

    left: 25px;

    bottom: 20px;

    color: var(--primary);

    font-size: 18px;

    transition: .3s;
}


.related-card:hover b {

    left: 18px;
}



/* =================================
   RESPONSIVE
================================= */

@media (max-width: 1000px) {

    .hero-symbol {

        width: 220px;
        height: 220px;
    }

    .circle-one {

        width: 190px;
        height: 190px;
    }

    .circle-two {

        width: 145px;
        height: 145px;

        top: 38px;
        left: 38px;
    }

    .yarn-symbol {

        transform: scale(.75) rotate(-25deg);

        top: 40px;
        left: 60px;
    }


    .article-wrapper {

        grid-template-columns:
            230px minmax(0,1fr);

        gap: 35px;
    }

}


@media (max-width: 768px) {

    .article-hero {

        min-height: 600px;
    }


    .hero-content {

        min-height: 600px;

        width: 88%;

        padding: 25px 0;
    }


    .hero-top {

        align-items: flex-start;
    }


    .brand img {

        width: 90px;
    }


    .brand span {

        display: none;
    }


    .article-label {

        font-size: 10px;
    }


    .hero-main {

        flex-direction: column;

        align-items: flex-start;

        gap: 20px;
    }


    .hero-text h1 {

        font-size: 35px;

        letter-spacing: -1px;
    }


    .hero-text p {

        font-size: 13px;
    }


    .hero-symbol {

        display: none;
    }


    .hero-bottom {

        gap: 25px;

        justify-content: space-between;
    }


    .hero-bottom span {

        font-size: 9px;
    }


    .hero-bottom strong {

        font-size: 10px;
    }



    .article-wrapper {

        width: 92%;

        margin: 45px auto;

        display: flex;

        flex-direction: column;

        gap: 35px;
    }


    .sidebar-inner {

        position: relative;

        top: 0;
    }


    .article-sidebar nav {

        display: grid;

        grid-template-columns:
            1fr 1fr;

        gap: 0 15px;
    }


    .article-sidebar nav a {

        font-size: 10px;
    }


    .article-section {

        margin-bottom: 70px;
    }


    .section-heading {

        gap: 12px;

        margin-bottom: 25px;
    }


    .section-heading h2 {

        font-size: 22px;
    }


    .article-section > p {

        font-size: 13px;

        line-height: 2.3;
    }


    .info-grid {

        grid-template-columns: 1fr;
    }


    .type-box {

        grid-template-columns: 1fr;
    }


    .type-box > div + div {

        border-right: none;

        border-top: 1px solid var(--border);
    }


    .advantage-grid {

        grid-template-columns: 1fr;
    }


    .yarn-table {

        overflow-x: auto;
    }


    .yarn-table > div {

        min-width: 600px;
    }


    .related-grid {

        grid-template-columns: 1fr;
    }


    .final-card {

        padding: 30px;
    }


    .final-card h3 {

        font-size: 20px;
    }

}


@media (max-width: 480px) {

    .article-hero {

        min-height: 570px;
    }


    .hero-content {

        min-height: 570px;
    }


    .article-label {

        display: none;
    }


    .hero-text h1 {

        font-size: 30px;
    }


    .hero-bottom {

        gap: 10px;
    }


    .sidebar-inner {

        padding: 20px;
    }


    .article-sidebar nav {

        grid-template-columns: 1fr;
    }


    .highlight-box {

        padding: 18px;
    }


    .article-image {

        margin-bottom: 65px;
    }

}