.irhvac-module{--ir-cols-desktop:4;--ir-cols-tablet:2;--ir-cols-mobile:1;--ir-gap:20px;--ir-slider-speed:450ms;color:var(--text,#17212b)}
.irhvac-module__heading{display:flex;align-items:center;justify-content:space-between;margin:0 0 18px}
.irhvac-module__heading h2{margin:0;font-size:clamp(1.25rem,2vw,1.65rem);line-height:1.45}
.irhvac-module__heading--tools{color:#fff}
.irhvac-module__empty{margin:0;padding:18px;border:1px dashed var(--line,#dfe5e9);border-radius:12px;color:var(--muted,#667482);text-align:center}
.irhvac-article-grid,.irhvac-category-grid{display:grid;grid-template-columns:repeat(var(--ir-cols-desktop),minmax(0,1fr));gap:var(--ir-gap)}
.irhvac-article-card{min-width:0;background:var(--surface,#fff);border:1px solid var(--line,#e4e9ed);border-radius:14px;overflow:hidden;box-shadow:0 8px 24px rgba(20,39,55,.06);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.irhvac-article-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(20,39,55,.11);border-color:color-mix(in srgb,var(--primary,#087ea4) 30%,var(--line,#e4e9ed))}
.irhvac-article-card__media{display:block;aspect-ratio:16/10;overflow:hidden;background:#edf2f5}
.irhvac-article-card__media img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.irhvac-article-card:hover .irhvac-article-card__media img{transform:scale(1.035)}
.irhvac-article-card__body{display:flex;flex-direction:column;align-items:flex-start;min-height:100%;padding:18px}
.irhvac-article-card__title{margin:0;font-size:1rem;line-height:1.75}
.irhvac-article-card__title a{color:var(--text,#17212b)}
.irhvac-article-card__intro{margin:10px 0 0;color:var(--muted,#667482);font-size:.88rem;line-height:1.9}
.irhvac-article-card__meta{display:flex;flex-wrap:wrap;gap:7px 14px;margin-top:14px;color:var(--muted,#667482);font-size:.76rem}
.irhvac-article-card__meta a{color:inherit}
.irhvac-article-card__readmore{display:inline-flex;align-items:center;gap:8px;margin-top:auto;padding-top:16px;font-size:.82rem;font-weight:700}
.irhvac-article-card__readmore span{transition:transform .2s ease}
[dir=ltr] .irhvac-article-card__readmore span{transform:scaleX(-1)}
.irhvac-article-card__readmore:hover span{transform:translateX(-3px)}
[dir=ltr] .irhvac-article-card__readmore:hover span{transform:scaleX(-1) translateX(-3px)}
.irhvac-article-card--tool{background:#151e24;border-color:rgba(255,255,255,.1);box-shadow:none;color:#fff}
.irhvac-article-card--tool:hover{border-color:rgba(52,190,225,.55);box-shadow:0 12px 30px rgba(0,0,0,.24)}
.irhvac-article-card--tool .irhvac-article-card__body{justify-content:center;padding:15px 16px;min-height:76px}
.irhvac-article-card--tool .irhvac-article-card__title{font-size:.88rem;line-height:1.65}
.irhvac-article-card--tool .irhvac-article-card__title a{color:#eef8fb}
.irhvac-article-card--tool .irhvac-article-card__intro,.irhvac-article-card--tool .irhvac-article-card__meta{color:#aebdc6}
.irhvac-article-card--tool .irhvac-article-card__media{aspect-ratio:16/7}
.irhvac-category-panel{min-width:0;background:var(--surface,#fff);border:1px solid var(--line,#e4e9ed);border-radius:14px;overflow:hidden;box-shadow:0 8px 24px rgba(20,39,55,.06)}
.irhvac-category-panel__header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 18px;border-bottom:1px solid var(--line,#e4e9ed);background:#f8fafb}
.irhvac-category-panel__header h3{margin:0;font-size:1rem;line-height:1.6}
.irhvac-category-panel__header h3 a{color:var(--text,#17212b)}
.irhvac-category-panel__all{display:grid;place-items:center;flex:0 0 auto;width:32px;height:32px;border-radius:50%;background:var(--primary,#087ea4);color:#fff}
[dir=ltr] .irhvac-category-panel__all span{transform:scaleX(-1)}
.irhvac-category-panel__items{display:grid}
.irhvac-category-panel .irhvac-article-card{border:0;border-radius:0;box-shadow:none}
.irhvac-category-panel .irhvac-article-card:hover{transform:none;box-shadow:none}
.irhvac-category-panel .irhvac-article-card+.irhvac-article-card{border-top:1px solid var(--line,#e4e9ed)}
.irhvac-category-panel .irhvac-article-card__media{aspect-ratio:16/8}
.irhvac-category-panel .irhvac-article-card__body{padding:16px 18px}
.irhvac-slider{position:relative}
.irhvac-slider__viewport{display:none;overflow:hidden}
.irhvac-slider.is-ready .irhvac-slider__viewport{display:block}
.irhvac-slider.is-ready .irhvac-slider__source{display:none}
.irhvac-slider__track{display:flex;direction:ltr;transition:transform var(--ir-slider-speed) ease;will-change:transform}
.irhvac-slider__page{display:grid;grid-template-columns:repeat(var(--ir-page-columns,1),minmax(0,1fr));gap:var(--ir-gap);flex:0 0 100%;width:100%;align-content:start}
.irhvac-slider__controls{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:18px}
.irhvac-slider__button{display:grid;place-items:center;width:40px;height:40px;padding:0;border:1px solid rgba(255,255,255,.18);border-radius:50%;background:#11191e;color:#fff;cursor:pointer;transition:background .2s ease,border-color .2s ease,opacity .2s ease}
.irhvac-slider__button:hover{background:var(--primary,#087ea4);border-color:var(--primary,#087ea4)}
.irhvac-slider__button:disabled{opacity:.35;cursor:default}
.irhvac-slider__dots{display:flex;align-items:center;gap:7px}
.irhvac-slider__dot{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:rgba(255,255,255,.28);cursor:pointer}
.irhvac-slider__dot[aria-current=true]{width:24px;border-radius:999px;background:#fff}
.irhvac-slider [hidden]{display:none!important}
@media(max-width:1050px){.irhvac-article-grid,.irhvac-category-grid{grid-template-columns:repeat(var(--ir-cols-tablet),minmax(0,1fr))}}
@media(max-width:620px){.irhvac-article-grid,.irhvac-category-grid{grid-template-columns:repeat(var(--ir-cols-mobile),minmax(0,1fr))}.irhvac-module__heading{margin-bottom:14px}.irhvac-article-card__body{padding:16px}.irhvac-slider__controls{margin-top:14px}}
@media(prefers-reduced-motion:reduce){.irhvac-article-card,.irhvac-article-card__media img,.irhvac-slider__track{transition:none!important}}

/* IRHVAC classic online-calculations skin — rebuilt from the JoomlaXTC module */
.irhvac-module--tools-classic{color:#f2f2f2;font-family:"B Yekan","Vazirmatn",Tahoma,Arial,sans-serif}
.irhvac-module--tools-classic .irhvac-tools-shell{position:relative;isolation:isolate;padding:0 0 10px;overflow:hidden;border:1px solid #080808;border-radius:8px;background-color:#1a1a1a;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.035) .8px,transparent .9px),linear-gradient(180deg,#202020 0%,#191919 52%,#151515 100%);background-size:5px 5px,100% 100%;box-shadow:0 0 24px rgba(0,0,0,.78),inset 0 1px 0 rgba(255,255,255,.055),inset 0 -1px 0 rgba(0,0,0,.85)}
.irhvac-module--tools-classic .irhvac-tools-shell::before{content:"";position:absolute;z-index:-1;inset:0;pointer-events:none;background:linear-gradient(110deg,rgba(255,255,255,.025),transparent 30%,rgba(0,0,0,.1) 70%,transparent);mix-blend-mode:screen}
.irhvac-module--tools-classic .irhvac-tools-shell__header{display:flex;align-items:center;min-height:43px;padding:0 22px;border-bottom:1px solid #090909;background:linear-gradient(180deg,#242424,#171717);box-shadow:0 1px 0 rgba(255,255,255,.04)}
.irhvac-module--tools-classic .irhvac-tools-shell__header h2{position:relative;margin:0;padding:9px 14px 9px 18px;border-left:4px solid #3a3a3a;color:#ededed;font-size:1rem;font-weight:500;line-height:1.55;text-shadow:0 1px 0 #000}
.irhvac-module--tools-classic .irhvac-tools-slider{position:relative;min-height:112px;padding:10px 52px 0}
.irhvac-module--tools-classic .irhvac-slider__viewport{border-radius:3px}
.irhvac-module--tools-classic .irhvac-slider__page{gap:var(--ir-gap);align-items:stretch}
.irhvac-module--tools-classic .irhvac-tool-item{display:flex;min-width:0;min-height:43px;margin:0;padding:0;border:0;border-left:4px solid #333;background:#151515;box-shadow:inset 0 1px 0 rgba(255,255,255,.025),0 1px 0 rgba(0,0,0,.65);transition:background .4s ease,border-color .28s linear,transform .18s ease}
.irhvac-module--tools-classic .irhvac-tool-item a{display:flex;align-items:center;justify-content:flex-start;width:100%;padding:9px 14px;color:#d8d8d8;font-size:.79rem;font-weight:400;line-height:1.55;text-align:right;text-decoration:none;text-shadow:0 1px 0 #000;transition:color .28s linear}
.irhvac-module--tools-classic .irhvac-tool-item:hover,.irhvac-module--tools-classic .irhvac-tool-item:focus-within{z-index:1;border-left-color:#666;background:#252525;transform:translateY(-1px)}
.irhvac-module--tools-classic .irhvac-tool-item:hover a,.irhvac-module--tools-classic .irhvac-tool-item a:focus-visible{color:#fff}
.irhvac-module--tools-classic .irhvac-tool-item a:focus-visible{outline:1px solid #888;outline-offset:-3px}
.irhvac-module--tools-classic .irhvac-tools-arrow{position:absolute;z-index:4;top:50%;display:grid;place-items:center;width:34px;height:58px;padding:0;border:0;background:transparent;cursor:pointer;transform:translateY(-50%);opacity:.76;filter:drop-shadow(0 2px 2px rgba(0,0,0,.85));transition:opacity .2s ease,transform .2s ease}
.irhvac-module--tools-classic .irhvac-tools-arrow--prev{right:8px}
.irhvac-module--tools-classic .irhvac-tools-arrow--next{left:8px}
.irhvac-module--tools-classic .irhvac-tools-arrow span{display:block;width:18px;height:18px;border-top:3px solid #aaa;border-right:3px solid #aaa}
.irhvac-module--tools-classic .irhvac-tools-arrow--prev span{transform:rotate(45deg)}
.irhvac-module--tools-classic .irhvac-tools-arrow--next span{transform:rotate(-135deg)}
.irhvac-module--tools-classic .irhvac-tools-arrow:hover{opacity:1;transform:translateY(-50%) scale(1.08)}
.irhvac-module--tools-classic .irhvac-tools-arrow:hover span{border-color:#fff}
.irhvac-module--tools-classic .irhvac-tools-arrow:focus-visible{outline:1px solid #aaa;outline-offset:0;border-radius:4px;opacity:1}
.irhvac-module--tools-classic .irhvac-tools-arrow:disabled{opacity:.18;cursor:default;transform:translateY(-50%)}
.irhvac-module--tools-classic .irhvac-tools-slider__dots{justify-content:center;margin:8px 0 0}
.irhvac-module--tools-classic .irhvac-slider__dot{width:7px;height:7px;background:#555;box-shadow:0 1px 0 #000}
.irhvac-module--tools-classic .irhvac-slider__dot[aria-current=true]{width:18px;background:#aaa}
.irhvac-module--tools-classic .irhvac-tools-shell__empty{margin:12px;color:#aaa;border-color:#444}

/* Optional cleaner skin kept for future visual changes without changing module logic. */
.irhvac-module--tools-modern .irhvac-tools-shell{padding:20px;border-radius:14px;background:#151e24;color:#fff}
.irhvac-module--tools-modern .irhvac-tools-shell__header h2{margin:0 0 18px;color:#fff;font-size:1.35rem}
.irhvac-module--tools-modern .irhvac-tools-slider{position:relative;padding:0 48px}
.irhvac-module--tools-modern .irhvac-tool-item{display:flex;min-height:76px;border:1px solid rgba(255,255,255,.1);border-radius:12px;background:#151e24}
.irhvac-module--tools-modern .irhvac-tool-item a{display:flex;align-items:center;width:100%;padding:15px 16px;color:#eef8fb;font-size:.88rem;line-height:1.65;text-decoration:none}
.irhvac-module--tools-modern .irhvac-tools-arrow{position:absolute;z-index:3;top:50%;width:38px;height:38px;border:1px solid rgba(255,255,255,.18);border-radius:50%;background:#11191e;transform:translateY(-50%)}
.irhvac-module--tools-modern .irhvac-tools-arrow--prev{right:0}.irhvac-module--tools-modern .irhvac-tools-arrow--next{left:0}
.irhvac-module--tools-modern .irhvac-tools-arrow span{display:block;width:10px;height:10px;margin:auto;border-top:2px solid #fff;border-right:2px solid #fff}
.irhvac-module--tools-modern .irhvac-tools-arrow--prev span{transform:rotate(45deg)}.irhvac-module--tools-modern .irhvac-tools-arrow--next span{transform:rotate(-135deg)}

@media(max-width:1050px){.irhvac-module--tools-classic .irhvac-tools-slider{padding-inline:46px}.irhvac-module--tools-classic .irhvac-tool-item a{font-size:.8rem}}
@media(max-width:620px){.irhvac-module--tools-classic .irhvac-tools-shell{border-radius:7px}.irhvac-module--tools-classic .irhvac-tools-shell__header{min-height:40px;padding-inline:13px}.irhvac-module--tools-classic .irhvac-tools-shell__header h2{font-size:.95rem}.irhvac-module--tools-classic .irhvac-tools-slider{min-height:0;padding:9px 39px 0}.irhvac-module--tools-classic .irhvac-tools-arrow{width:28px;height:50px}.irhvac-module--tools-classic .irhvac-tools-arrow--prev{right:4px}.irhvac-module--tools-classic .irhvac-tools-arrow--next{left:4px}.irhvac-module--tools-classic .irhvac-tools-arrow span{width:14px;height:14px;border-width:2px}.irhvac-module--tools-classic .irhvac-tool-item{min-height:41px}.irhvac-module--tools-classic .irhvac-tool-item a{padding:9px 12px;font-size:.79rem}}
@media(prefers-reduced-motion:reduce){.irhvac-module--tools-classic .irhvac-tool-item,.irhvac-module--tools-classic .irhvac-tools-arrow{transition:none!important}}

/* IRHVAC classic Global News skin — rebuilt from the Joomla 2.5 module settings. */
.irhvac-module--categories-classic{
    --ir-category-border:#555;
    --ir-category-header:#222;
    --ir-category-text:#fff;
    --ir-category-image-border:#6e6e6e;
    color:var(--ir-category-text);
    font-family:"B Yekan","Vazirmatn",Tahoma,Arial,sans-serif;
}
.irhvac-module--categories-classic .irhvac-module__heading--categories{
    min-height:42px;
    margin:0 0 8px;
    padding:5px 12px;
    border:2px solid var(--ir-category-border);
    background:linear-gradient(180deg,color-mix(in srgb,var(--ir-category-header) 88%,#fff 12%),var(--ir-category-header));
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 2px 7px rgba(0,0,0,.28);
}
.irhvac-module--categories-classic .irhvac-module__heading--categories h2{
    margin:0;
    color:var(--ir-category-text);
    font-size:1rem;
    font-weight:500;
    line-height:1.55;
    text-shadow:0 1px 0 #000;
}
.irhvac-module--categories-classic .irhvac-category-grid{
    align-items:stretch;
    gap:var(--ir-gap);
}
.irhvac-module--categories-classic .irhvac-category-panel{
    position:relative;
    min-width:0;
    overflow:hidden;
    border:2px solid var(--ir-category-border);
    border-radius:2px;
    background-color:#151515;
    background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.025) .75px,transparent .9px),linear-gradient(180deg,#1b1b1b,#111);
    background-size:5px 5px,100% 100%;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.04),0 3px 8px rgba(0,0,0,.35);
}
.irhvac-module--categories-classic .irhvac-category-panel__header{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:36px;
    gap:8px;
    padding:5px;
    border:0;
    border-bottom:1px solid #080808;
    background:linear-gradient(180deg,color-mix(in srgb,var(--ir-category-header) 90%,#fff 10%),var(--ir-category-header));
    box-shadow:inset 0 1px 0 rgba(255,255,255,.055),0 1px 0 rgba(255,255,255,.025);
}
.irhvac-module--categories-classic .irhvac-category-panel__header h3{
    min-width:0;
    margin:0;
    padding-inline:5px;
    overflow:hidden;
    font-size:.91rem;
    font-weight:500;
    line-height:1.55;
    text-overflow:ellipsis;
    white-space:nowrap;
}
.irhvac-module--categories-classic .irhvac-category-panel__header h3 a{
    color:var(--ir-category-text);
    text-decoration:none;
    text-shadow:0 1px 0 #000;
}
.irhvac-module--categories-classic .irhvac-category-panel__all{
    display:grid;
    place-items:center;
    flex:0 0 auto;
    width:26px;
    height:24px;
    border:1px solid #444;
    border-radius:2px;
    background:linear-gradient(180deg,#3b3b3b,#252525);
    color:#d8d8d8;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 1px 1px rgba(0,0,0,.55);
    text-decoration:none;
    transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.irhvac-module--categories-classic .irhvac-category-panel__all:hover,
.irhvac-module--categories-classic .irhvac-category-panel__all:focus-visible{
    border-color:#777;
    background:linear-gradient(180deg,#555,#333);
    color:#fff;
}
.irhvac-module--categories-classic .irhvac-category-panel__content{
    min-height:var(--ir-category-panel-height);
    padding:5px;
    color:var(--ir-category-text);
}
.irhvac-module--categories-classic .irhvac-globalnews-item{
    min-width:0;
    color:var(--ir-category-text);
}
.irhvac-module--categories-classic .irhvac-globalnews-item__media{
    display:block;
    width:var(--ir-category-image-width);
    height:var(--ir-category-image-height);
    margin:8px auto;
    padding:2px;
    overflow:hidden;
    border:1px solid var(--ir-category-image-border);
    border-radius:8px;
    background:#090909;
    box-shadow:0 1px 4px rgba(0,0,0,.7),inset 0 1px 0 rgba(255,255,255,.04);
}
.irhvac-module--categories-classic .irhvac-globalnews-item__media img{
    display:block;
    width:100%;
    height:100%;
    border-radius:5px;
    object-fit:cover;
    transition:filter .25s ease,transform .3s ease;
}
.irhvac-module--categories-classic .irhvac-globalnews-item:hover .irhvac-globalnews-item__media img{
    filter:brightness(1.07);
    transform:scale(1.018);
}
.irhvac-module--categories-classic .irhvac-globalnews-item__body{
    padding:0 5px 7px;
}
.irhvac-module--categories-classic .irhvac-globalnews-item__title{
    margin:0 0 5px;
    font-size:.86rem;
    font-weight:500;
    line-height:1.65;
    text-align:center;
}
.irhvac-module--categories-classic .irhvac-globalnews-item__title a{
    color:var(--ir-category-text);
    text-decoration:none;
    text-shadow:0 1px 0 #000;
}
.irhvac-module--categories-classic .irhvac-globalnews-item__title a:hover{
    color:#e2e2e2;
    text-decoration:underline;
    text-underline-offset:3px;
}
.irhvac-module--categories-classic .irhvac-globalnews-item__intro{
    display:-webkit-box;
    margin:0;
    overflow:hidden;
    color:color-mix(in srgb,var(--ir-category-text) 78%,transparent);
    font-size:.75rem;
    line-height:1.75;
    text-align:justify;
    -webkit-box-orient:vertical;
    -webkit-line-clamp:3;
}
.irhvac-module--categories-classic .irhvac-globalnews-item__meta{
    display:flex;
    flex-wrap:wrap;
    gap:6px 10px;
    margin-top:6px;
    color:#aaa;
    font-size:.68rem;
}
.irhvac-module--categories-classic .irhvac-globalnews-item__readmore{
    display:inline-flex;
    align-items:center;
    gap:5px;
    margin-top:7px;
    color:#ddd;
    font-size:.72rem;
    text-decoration:none;
}
.irhvac-module--categories-classic .irhvac-globalnews-links{
    margin:7px 5px 3px;
    padding:6px 17px 0 0;
    border-top:1px solid #333;
    list-style:square;
}
.irhvac-module--categories-classic .irhvac-globalnews-links li{
    margin:3px 0;
    color:#888;
    font-size:.73rem;
    line-height:1.65;
}
.irhvac-module--categories-classic .irhvac-globalnews-links a{
    color:#d3d3d3;
    text-decoration:none;
}
.irhvac-module--categories-classic .irhvac-globalnews-links a:hover{
    color:#fff;
    text-decoration:underline;
}
.irhvac-module--categories-classic .irhvac-module__empty{
    margin:8px;
    border-color:#444;
    border-radius:2px;
    color:#aaa;
}

/* The modern category skin uses the current clean card language. */
.irhvac-module--categories-modern .irhvac-category-panel__content{padding:0}
.irhvac-module--categories-modern .irhvac-globalnews-item__media{display:block;aspect-ratio:16/8;overflow:hidden;background:#edf2f5}
.irhvac-module--categories-modern .irhvac-globalnews-item__media img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.irhvac-module--categories-modern .irhvac-globalnews-item:hover .irhvac-globalnews-item__media img{transform:scale(1.035)}
.irhvac-module--categories-modern .irhvac-globalnews-item__body{padding:16px 18px}
.irhvac-module--categories-modern .irhvac-globalnews-item__title{margin:0;font-size:1rem;line-height:1.75}
.irhvac-module--categories-modern .irhvac-globalnews-item__title a{color:var(--text,#17212b)}
.irhvac-module--categories-modern .irhvac-globalnews-item__intro{margin:10px 0 0;color:var(--muted,#667482);font-size:.88rem;line-height:1.9}
.irhvac-module--categories-modern .irhvac-globalnews-item__meta{display:flex;gap:7px 14px;margin-top:14px;color:var(--muted,#667482);font-size:.76rem}
.irhvac-module--categories-modern .irhvac-globalnews-item__readmore{display:inline-flex;gap:8px;margin-top:14px;font-size:.82rem;font-weight:700}
.irhvac-module--categories-modern .irhvac-globalnews-links{margin:0;padding:10px 35px 14px 18px;border-top:1px solid var(--line,#e4e9ed)}
.irhvac-module--categories-modern .irhvac-globalnews-links li{margin:5px 0;color:var(--muted,#667482);font-size:.82rem;line-height:1.7}

@media(max-width:1050px){
    .irhvac-module--categories-classic .irhvac-category-panel__content{min-height:0}
}
@media(max-width:620px){
    .irhvac-module--categories-classic .irhvac-module__heading--categories{margin-bottom:6px}
    .irhvac-module--categories-classic .irhvac-category-panel__header{min-height:38px;padding:6px}
    .irhvac-module--categories-classic .irhvac-category-panel__header h3{font-size:.94rem}
    .irhvac-module--categories-classic .irhvac-globalnews-item__title{font-size:.9rem}
    .irhvac-module--categories-classic .irhvac-globalnews-item__intro{font-size:.79rem;-webkit-line-clamp:4}
}
@media(prefers-reduced-motion:reduce){
    .irhvac-module--categories-classic .irhvac-globalnews-item__media img{transition:none!important}
}