/**
 * Rubbers.ir - Production Single Part
 */

.rsk-part-page{
    --rp-ink:#172229;
    --rp-muted:#66747c;
    --rp-border:#e2e7ea;
    --rp-soft:#f6f8f9;
    --rp-white:#fff;
    --rp-accent:#c8272f;
    --rp-accent-soft:#fff1f2;
    --rp-deep:#063f3d;
    color:var(--rp-ink);
    background:#fff;
}

.rsk-part-page *,
.rsk-part-page *::before,
.rsk-part-page *::after{
    box-sizing:border-box;
}

.rsk-part-container,
.rsk-part-shell{
    width:min(1180px,calc(100% - 40px));
    margin-inline:auto;
}

.rsk-part-hero{
    padding:24px 0 64px;
    border-bottom:1px solid var(--rp-border);
    background:
        radial-gradient(circle at 12% 16%,rgba(6,63,61,.08),transparent 28%),
        linear-gradient(180deg,#fff 0%,#f7f9fa 100%);
}

.rsk-part-breadcrumb{
    margin-bottom:30px;
    color:var(--rp-muted);
    font-size:13px;
}

.rsk-part-breadcrumb .rank-math-breadcrumb p{
    margin:0;
}

.rsk-part-breadcrumb a{
    color:inherit;
    text-decoration:none;
}

.rsk-part-hero-grid{
    display:grid;
    grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);
    gap:54px;
    align-items:center;
}

.rsk-part-kicker{
    display:block;
    margin-bottom:8px;
    color:var(--rp-accent);
    font-size:12px;
    font-weight:900;
}

.rsk-part-hero h1{
    margin:0 !important;
    color:var(--rp-ink) !important;
    font-size:clamp(34px,4.7vw,60px) !important;
    line-height:1.18 !important;
    font-weight:900 !important;
}

.rsk-part-english{
    margin-top:11px;
    color:#55636b;
    font-size:18px;
    font-weight:800;
}

.rsk-part-lead{
    max-width:760px;
    margin-top:22px;
    color:#4f5d65;
    font-size:16px;
    line-height:2;
}

.rsk-part-lead p{
    margin:0;
}

.rsk-part-function,
.rsk-part-aliases{
    display:flex;
    flex-wrap:wrap;
    gap:7px;
    margin-top:15px;
    color:#66747c;
    font-size:13px;
    line-height:1.8;
}

.rsk-part-function strong,
.rsk-part-aliases strong{
    color:#344149;
}

.rsk-part-hero-media{
    min-height:390px;
    margin:0;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.9);
    border-radius:28px;
    background:#edf1f2;
    box-shadow:0 24px 55px rgba(24,35,42,.12);
}

.rsk-part-hero-image{
    display:block;
    width:100%;
    height:100%;
    min-height:390px;
    object-fit:cover;
}

.rsk-part-hero-placeholder{
    display:flex;
    align-items:center;
    justify-content:center;
    padding:30px;
    background:linear-gradient(145deg,#0a5652,#073d3b);
}

.rsk-part-hero-placeholder span{
    color:#fff;
    font-size:clamp(34px,5vw,64px);
    line-height:1.3;
    font-weight:900;
    text-align:center;
}

.rsk-part-shell{
    padding:12px 0 90px;
}

.rsk-part-section{
    padding:70px 0;
    border-bottom:1px solid var(--rp-border);
}

.rsk-part-section-head{
    max-width:780px;
    margin-bottom:28px;
}

.rsk-part-section-head h2{
    margin:0 !important;
    color:var(--rp-ink) !important;
    font-size:clamp(26px,3vw,36px) !important;
    line-height:1.4 !important;
    font-weight:900 !important;
}

.rsk-part-prose{
    color:#3f4d55;
    font-size:16px;
    line-height:2.05;
}

.rsk-part-prose > :first-child{
    margin-top:0;
}

.rsk-part-prose h2,
.rsk-part-prose h3,
.rsk-part-prose h4{
    color:var(--rp-ink) !important;
    font-weight:900 !important;
    line-height:1.5 !important;
}

.rsk-part-spec-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:14px;
}

.rsk-part-spec-card{
    min-height:126px;
    padding:22px;
    border:1px solid var(--rp-border);
    border-radius:18px;
    background:#fff;
    box-shadow:0 7px 24px rgba(23,34,41,.035);
}

.rsk-part-spec-card span{
    display:block;
    margin-bottom:14px;
    color:var(--rp-muted);
    font-size:12px;
    font-weight:800;
}

.rsk-part-spec-card strong{
    display:block;
    color:var(--rp-ink);
    font-size:19px;
    line-height:1.55;
    font-weight:900;
}

.rsk-part-engineering-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:16px;
}

.rsk-part-engineering-card{
    padding:24px;
    border:1px solid var(--rp-border);
    border-radius:19px;
    background:var(--rp-soft);
}

.rsk-part-engineering-card h3{
    margin:0 0 12px !important;
    color:var(--rp-deep) !important;
    font-size:18px !important;
    line-height:1.5 !important;
    font-weight:900 !important;
}

.rsk-part-engineering-card > div{
    color:#536169;
    line-height:1.95;
}

.rsk-part-engineering-card p{
    margin:0 0 10px;
}

.rsk-part-engineering-card p:last-child{
    margin-bottom:0;
}

@media(max-width:980px){
    .rsk-part-hero-grid{
        grid-template-columns:1fr;
    }

    .rsk-part-spec-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
    }
}

@media(max-width:640px){
    .rsk-part-container,
    .rsk-part-shell{
        width:min(100% - 28px,1180px);
    }

    .rsk-part-hero{
        padding:16px 0 42px;
    }

    .rsk-part-hero h1{
        font-size:34px !important;
    }

    .rsk-part-hero-media,
    .rsk-part-hero-image{
        min-height:260px;
    }

    .rsk-part-section{
        padding:48px 0;
    }

    .rsk-part-spec-grid,
    .rsk-part-engineering-grid{
        grid-template-columns:1fr;
    }

    .rsk-part-spec-card{
        min-height:0;
    }
}