/* Petrovich — welding article concierge and compact editorial navigation */
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.nav .petrovich-nav-link{display:inline-flex;align-items:center;gap:5px;color:#ffd6b4;border:1px solid #bb7049;padding:7px 12px;border-radius:100px;font-weight:800;font-size:.87rem}
.nav .petrovich-nav-link:hover,.nav .petrovich-nav-link:focus-visible{background:#c56c35;color:#fff}
.petrovich-widget{position:fixed;z-index:800;bottom:22px;right:22px;font-family:system-ui,'Segoe UI',sans-serif}
.petrovich-launcher{display:inline-flex;align-items:center;gap:10px;padding:10px 18px 10px 10px;border:1px solid #e78d54;border-radius:40px;background:#152328;color:#f6f3ec;box-shadow:0 9px 28px #0f1c2163;cursor:pointer;font-weight:800;letter-spacing:.01em}
.petrovich-launcher:hover{background:#284049}
.petrovich-launcher:focus-visible,.petrovich-panel button:focus-visible,.petrovich-panel a:focus-visible{outline:3px solid #ffab78;outline-offset:3px}
.petrovich-monogram,.petrovich-avatar{background:#dd7a40;color:#162127;display:grid;place-items:center;flex:none;width:36px;height:36px;border-radius:50%;font-weight:900;font-size:1.2rem}
.petrovich-panel[hidden]{display:none!important}
.petrovich-panel{position:absolute;right:0;bottom:calc(100% + 14px);width:min(440px,calc(100vw - 32px));height:min(620px,calc(100dvh - 102px));display:flex;flex-direction:column;overflow:hidden;border:1px solid #60757a;border-radius:14px;background:#f1f4f2;box-shadow:0 22px 58px #07131599;color:#19272b}
.petrovich-panel-head{display:flex;gap:12px;align-items:center;padding:17px 18px;background:#16252a;color:#fff}
.petrovich-avatar{width:43px;height:43px;font-size:1.4rem}
.petrovich-panel-heading{display:flex;flex-direction:column;flex:1;gap:3px}
.petrovich-panel-heading strong{font-size:1.13rem;font-weight:880}
.petrovich-panel-heading span{font-size:.76rem;color:#ceddd8}
.petrovich-close{min-width:36px;min-height:36px;border:1px solid #66777a;color:#fff;background:transparent;border-radius:7px;cursor:pointer;font-size:1.45rem;line-height:1}
.petrovich-thread{flex:1;padding:17px 15px;overflow-y:auto;overscroll-behavior:contain;display:flex;flex-direction:column;gap:12px}
.petrovich-bubble{padding:13px 14px;border-radius:12px;font-size:.9rem;line-height:1.55;max-width:96%;overflow-wrap:anywhere}
.petrovich-from-bot{background:#fff;border-left:3px solid #d47a43;align-self:flex-start}
.petrovich-from-user{background:#d6e4df;align-self:flex-end;font-weight:650}
.petrovich-results{display:grid;gap:10px;margin-top:10px}
.petrovich-result{display:block;border:1px solid #ced8d4;border-left:3px solid #b65b2d;padding:11px 12px;background:#f8faf9;text-decoration:none;color:#14252c}
.petrovich-result strong{display:block;color:#1e3035;font-size:.88rem;line-height:1.35}
.petrovich-result span{display:block;color:#526467;margin-top:5px;font-size:.78rem;line-height:1.45}
.petrovich-result:hover{background:#fff0e2}
.petrovich-suggestions{display:flex;gap:7px;flex-wrap:wrap;padding:10px 14px;border-top:1px solid #d7e0dc;background:#fff}
.petrovich-suggestions button{background:#f6f3eb;border:1px solid #dac5b3;border-radius:20px;padding:6px 10px;color:#71391c;cursor:pointer;font-size:.73rem;font-weight:750}
.petrovich-suggestions button:hover{background:#f3d9be}
.petrovich-form{display:flex;gap:8px;padding:11px 14px 10px;background:#fff;border-top:1px solid #d7e0dc}
.petrovich-form input{min-width:0;flex:1;border:1px solid #b8c6c2;border-radius:6px;font:inherit;font-size:.87rem;padding:10px 11px;outline-offset:3px}
.petrovich-form button{border:0;border-radius:6px;background:#ad5528;color:#fff;padding:9px 12px;cursor:pointer;white-space:nowrap;font-weight:800}
.petrovich-form button:disabled{opacity:.65;cursor:wait}
.petrovich-disclaimer{background:#fff;color:#637071;padding:0 14px 12px;margin:0;font-size:.72rem;line-height:1.4}
.petrovich-disclaimer a{font-weight:700;text-decoration:underline}
.petrovich-bubble a{color:#87401c;font-weight:800;text-decoration:underline;text-underline-offset:3px}
.petrovich-noscript{background:#fff;border-left:4px solid #b65b2d;padding:12px 15px;font-size:.9rem!important}
.petrovich-noscript a{color:#87401c;font-weight:800;text-decoration:underline}
.petrovich-landing{background:#e9efec;min-height:70vh;padding:64px 0 95px}
.petrovich-landing-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:clamp(30px,6vw,95px)}
.petrovich-landing h1{font-size:clamp(3.2rem,5vw,5.6rem);line-height:1.06;letter-spacing:-.06em;margin:15px 0}
.petrovich-landing h1 span{color:#af562b}
.petrovich-landing p{max-width:650px;line-height:1.7;font-size:1.07rem;color:#425659}
.petrovich-landing .petrovich-open-page{background:#ad572e;color:#fff;border:0;padding:16px 23px;font-weight:800;cursor:pointer;margin:16px 0}
.petrovich-landing .petrovich-open-page:hover{background:#8c4320}
.petrovich-landing-cards{display:grid;gap:13px}
.petrovich-landing-cards a{display:flex;justify-content:space-between;align-items:center;gap:25px;padding:22px 23px;background:#fff;border-left:4px solid #e08b53;font-size:1.1rem;font-weight:800}
.petrovich-landing-cards a:hover{background:#fff2e9}
.petrovich-landing small{display:block;color:#536669;margin-top:12px;font-size:.83rem}
@media(max-width:1100px){.nav .petrovich-nav-link{padding:6px 10px}}
@media(max-width:860px){.mobile-nav nav .petrovich-nav-link{background:#365056;color:#fff;border-left:3px solid #e79b68;display:flex;justify-content:space-between}}
@media(max-width:720px){.petrovich-landing-grid{grid-template-columns:1fr}.petrovich-landing{padding:36px 0 90px}}
@media(max-width:540px){
 .petrovich-widget{right:12px;bottom:12px}
 .petrovich-launcher{font-size:.83rem;padding:8px 13px 8px 8px}
 .petrovich-monogram{width:31px;height:31px}
 .petrovich-panel{right:0;bottom:calc(100% + 10px);height:min(575px,calc(100dvh - 98px));width:calc(100vw - 24px)}
 .petrovich-panel-head{padding:12px 14px}
 .petrovich-suggestions{gap:6px}
 .petrovich-suggestions button{font-size:.71rem}
 .petrovich-landing h1{font-size:clamp(2.7rem,12vw,4rem)}
}
/* Compact landscape phones and virtual keyboard: give the conversation available height. */
@media(max-height:480px){
 .petrovich-panel{position:fixed;top:8px;right:8px;bottom:8px;width:min(440px,calc(100vw - 16px));height:auto;max-height:none}
 .petrovich-panel-head{padding:7px 11px}
 .petrovich-avatar{width:30px;height:30px;font-size:1rem}
 .petrovich-thread{padding:8px 10px;gap:7px}
 .petrovich-bubble{padding:8px 10px;line-height:1.35}
 .petrovich-suggestions{padding:5px 9px;gap:4px}
 .petrovich-suggestions button{padding:3px 7px;font-size:.69rem}
 .petrovich-form{padding:6px 9px}
 .petrovich-form input{padding:7px 8px}
 .petrovich-form button{padding:7px 9px}
 .petrovich-disclaimer{padding:0 9px 6px;font-size:.65rem}
}
@media(prefers-reduced-motion:reduce){.petrovich-widget *{scroll-behavior:auto!important}}

.petrovich-ask-band{padding:52px 0;background:#192a30;color:#fff;border-top:4px solid #d77b44}
.petrovich-ask-band .wrap{display:grid;grid-template-columns:1fr 1.1fr;align-items:center;column-gap:35px}
.petrovich-ask-band .eyebrow{grid-column:1/-1;color:#ffb987}
.petrovich-ask-band h2{font-size:clamp(2.4rem,4.7vw,4.4rem);letter-spacing:-.055em;line-height:1.05;margin:8px 0 0}
.petrovich-ask-band p{max-width:530px;margin:6px 0 8px;color:#c8d6d2;font-size:1.01rem;line-height:1.65}
.petrovich-ask-band button{justify-self:start;border:1px solid #efa977;padding:13px 22px;background:#9b481e;color:#fff;font-weight:800;grid-column:2;cursor:pointer}
.petrovich-ask-band button:hover{background:#803915}
@media(max-width:720px){.petrovich-ask-band .wrap{grid-template-columns:1fr;row-gap:15px}.petrovich-ask-band button{grid-column:1}}