/*
Theme Name: RockTumblerGuide
Theme URI: https://rocktumblerguide.com/
Author: Rock Tumbler Guide
Description: Lightweight responsive theme for practical rock tumbling equipment guides, tutorials and affiliate recommendations.
Version: 1.1.0
Requires at least: 6.3
Requires PHP: 7.4
Text Domain: rocktumblerguide-theme
License: GPL-2.0-or-later
*/
:root{--ink:#243532;--muted:#5b6d68;--teal:#34776c;--teal-dark:#20564c;--sand:#e7d5bc;--bg:#f8faf7;--card:#fff;--line:#dce5df;--amber:#b56839;--shadow:0 10px 35px rgba(30,55,48,.06)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--bg);font:16px/1.68 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select,textarea{font:inherit}img,svg{max-width:100%;height:auto}a{color:var(--teal-dark);text-underline-offset:3px}a:hover{color:#963f25}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #bd793e;outline-offset:2px}h1,h2,h3,h4{line-height:1.2;letter-spacing:-.035em;color:#223632}h1{font-size:clamp(2.2rem,4.6vw,4.5rem);margin:.25em 0}h2{font-size:clamp(1.55rem,2.5vw,2.18rem);margin:1.8em 0 .65em}h3{font-size:1.28rem;margin:1.45em 0 .5em}p{margin:0 0 1.18em}.rtg-container{width:min(1180px,calc(100% - 40px));margin-inline:auto}.rtg-site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.rtg-header-row{min-height:76px;display:flex;align-items:center;gap:20px}.rtg-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);white-space:nowrap;min-width:max-content}.rtg-brand strong{font-size:1.19rem;letter-spacing:-.04em;line-height:1}.rtg-brand em{font-size:.62rem;color:#65716c;font-style:normal;display:block;letter-spacing:.03em;margin-top:4px}.rtg-logo{width:38px;height:38px;flex:none}.rtg-header-nav{display:flex;align-items:center;gap:16px;flex:1;justify-content:center}.rtg-header-nav a{font-weight:660;font-size:.87rem;text-decoration:none;color:#324d46;white-space:nowrap}.rtg-header-nav a:hover{color:var(--amber)}.rtg-header-search{width:178px;position:relative}.rtg-header-search input{background:#f3f5f2;border:1px solid #e2e8e3;border-radius:999px;padding:8px 12px 8px 33px;width:100%;font-size:.86rem;color:var(--ink)}.rtg-header-search button{position:absolute;left:8px;top:9px;background:none;border:0;padding:0;line-height:1;color:#788a84;font-size:14px}.rtg-mobile-menu{display:none}.rtg-hero{padding:56px 0 52px;background:linear-gradient(135deg,#f1f6ef 0%,#e6ede5 56%,#efe3d0 100%);overflow:hidden;border-bottom:1px solid #dfe5dc}.rtg-hero-inner{display:grid;grid-template-columns:1.06fr .94fr;align-items:center;gap:36px}.rtg-eyebrow{text-transform:uppercase;letter-spacing:.18em;font-weight:800;color:var(--teal);font-size:.74rem}.rtg-hero h1{max-width:680px;letter-spacing:-.055em}.rtg-hero h1 span{color:#3a8478}.rtg-hero p{font-size:1.14rem;color:#4c635b;max-width:590px}.rtg-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 0}.rtg-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:47px;padding:11px 21px;font-weight:760;font-size:.94rem;border-radius:11px;text-decoration:none;border:1px solid var(--teal);background:var(--teal);color:white}.rtg-button:hover{background:var(--teal-dark);color:white}.rtg-button-outline{background:transparent;color:var(--teal-dark)}.rtg-button-outline:hover{background:#fff;color:var(--teal-dark)}.rtg-hero-art{position:relative;isolation:isolate;text-align:center}.rtg-hero-art svg{width:100%;max-width:530px;filter:drop-shadow(0 25px 25px rgba(46,63,48,.16))}.rtg-section{padding:55px 0}.rtg-section-alt{background:#eef3ed}.rtg-section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:21px}.rtg-section-heading h2{margin:0}.rtg-section-lede{color:var(--muted);max-width:710px}.rtg-kicker{font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#558074;margin-bottom:8px}.rtg-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:19px}.rtg-grid-four{grid-template-columns:repeat(4,minmax(0,1fr))}.rtg-tile{border:1px solid var(--line);border-radius:17px;padding:25px;background:white;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow);transition:transform .2s,border-color .2s}.rtg-tile:hover{transform:translateY(-3px);border-color:#9bb9ab;color:var(--ink)}.rtg-tile-icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:14px;background:#e5f0ec;color:var(--teal);font-size:24px;margin-bottom:7px}.rtg-tile h3{margin:0;font-size:1.18rem}.rtg-tile p{font-size:.91rem;line-height:1.5;color:var(--muted);margin:0;flex:1}.rtg-tile-arrow{font-weight:750;color:var(--teal);font-size:.87rem;margin-top:6px}.rtg-feature{background:#223c36;color:white;border-radius:20px;padding:32px;display:flex;gap:28px;align-items:center}.rtg-feature h2,.rtg-feature h3{color:white;margin:0 0 10px}.rtg-feature p{color:#d9e6df;margin:0}.rtg-feature .rtg-button{background:#f3e0bc;color:#263c33;border-color:#f3e0bc;white-space:nowrap}.rtg-feature .rtg-button:hover{background:white}.rtg-article-shell{display:grid;grid-template-columns:minmax(0,760px) minmax(200px,270px);gap:50px;align-items:start;padding:38px 0 82px}.rtg-article{min-width:0}.rtg-breadcrumbs{display:flex;gap:9px;flex-wrap:wrap;color:#7a8983;font-size:.81rem;margin-bottom:19px}.rtg-breadcrumbs a{text-decoration:none;color:#56776c}.rtg-article-header{padding-bottom:23px;border-bottom:1px solid var(--line);margin-bottom:22px}.rtg-article-header h1{font-size:clamp(2.0rem,3.8vw,3.15rem);letter-spacing:-.05em;margin:5px 0 13px}.rtg-article-summary{font-size:1.15rem;line-height:1.6;color:#5e706b;margin:0}.rtg-content{font-size:1.035rem;line-height:1.83}.rtg-content h2{scroll-margin-top:105px}.rtg-content h3{scroll-margin-top:105px}.rtg-content p{margin-bottom:1.27em}.rtg-content ul,.rtg-content ol{padding-left:24px}.rtg-content li{margin:6px 0}.rtg-content .rtg-intro{font-size:1.09rem;color:#3e5149}.rtg-content .rtg-source-note{margin-top:37px;border-top:1px solid var(--line);padding-top:17px;font-size:.85rem;color:var(--muted)}.rtg-aside{position:sticky;top:100px}.rtg-aside-box{padding:21px;border:1px solid var(--line);border-radius:14px;background:white;margin-bottom:16px}.rtg-aside-box h3{font-size:1rem;margin:0 0 12px}.rtg-aside-box a{display:block;font-size:.88rem;line-height:1.5;text-decoration:none;padding:7px 0;border-bottom:1px solid #f0f3f0;color:#506962}.rtg-aside-box a:last-child{border:0}.rtg-info-panel{background:#e8f0e9;border-radius:12px;padding:17px;font-size:.87rem;color:#45635b}.rtg-archive-hero{background:#edf3ee;border-bottom:1px solid var(--line);padding:48px 0}.rtg-archive-hero h1{font-size:clamp(2.1rem,4vw,3.4rem)}.rtg-article-excerpt{color:var(--muted)}.rtg-listing{padding:35px 0 75px}.rtg-listing .rtg-tile{min-height:200px}.rtg-separator{margin:34px 0;border:0;border-top:1px solid var(--line)}.rtg-site-footer{border-top:1px solid #d8e2da;background:#1f3731;color:#d9e7df;padding:46px 0 24px}.rtg-footer-columns{display:grid;grid-template-columns:2fr 1fr 1fr;gap:35px}.rtg-site-footer h3{color:#fff;margin:0 0 12px}.rtg-site-footer p,.rtg-site-footer a{color:#c7d8ce;font-size:.9rem}.rtg-site-footer a{display:block;margin-bottom:8px;text-decoration:none}.rtg-site-footer a:hover{color:white}.rtg-footer-bottom{border-top:1px solid #37554b;margin-top:32px;padding-top:19px;font-size:.79rem;color:#c0d1c8}.rtg-footer-bottom p{margin:.5em 0}.rtg-nonresults{padding:90px 0;min-height:50vh}.rtg-search-large{display:flex;gap:10px;max-width:560px}.rtg-search-large input{flex:1;min-width:0;background:white;padding:14px;border:1px solid #9eb6ab;border-radius:9px}.rtg-search-large button{background:var(--teal);color:white;border:0;border-radius:9px;padding:0 20px;font-weight:750}.rtg-machine-facts{margin:25px 0}.rtg-machine-facts table{width:100%;border-collapse:collapse}.rtg-machine-facts th,.rtg-machine-facts td{padding:12px;text-align:left;border-bottom:1px solid var(--line)}.rtg-machine-facts th{width:38%}.rtg-content table{border-collapse:collapse;display:block;max-width:100%;overflow:auto;margin:20px 0}.rtg-content td,.rtg-content th{padding:12px;border:1px solid var(--line)}.rtg-content blockquote{border-left:3px solid var(--teal);padding-left:19px;color:#526a60}.rtg-article-cover{max-height:420px;object-fit:cover;border-radius:17px;margin-bottom:20px}.rtg-mobile-toc{display:none}.screen-reader-text{position:absolute!important;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);height:1px;width:1px;overflow:hidden;white-space:nowrap}.screen-reader-text:focus{position:fixed!important;clip:auto;clip-path:none;top:10px;left:10px;background:white;padding:12px;width:auto;height:auto;z-index:50}
@media(max-width:1100px){.rtg-header-nav{gap:11px}.rtg-header-nav a{font-size:.8rem}.rtg-header-search{width:145px}.rtg-article-shell{gap:30px}}
@media(max-width:920px){.rtg-header-nav,.rtg-header-search{display:none}.rtg-header-row{justify-content:space-between}.rtg-mobile-menu{display:block;position:relative}.rtg-mobile-menu summary{list-style:none;cursor:pointer;border:1px solid var(--line);border-radius:10px;padding:9px 14px;font-weight:700}.rtg-mobile-menu summary::-webkit-details-marker{display:none}.rtg-mobile-panel{position:absolute;right:0;top:50px;width:min(320px,calc(100vw - 40px));padding:17px;background:white;border:1px solid var(--line);border-radius:14px;box-shadow:0 14px 30px #203d3230}.rtg-mobile-panel nav a{display:block;padding:9px 3px;border-bottom:1px solid #edf1ed;text-decoration:none;font-weight:700}.rtg-mobile-panel form{display:flex;margin-top:16px}.rtg-mobile-panel input{width:100%;min-width:0;padding:9px;border:1px solid #cbd8cf;border-radius:8px}.rtg-mobile-panel button{background:var(--teal);color:white;border:0;border-radius:8px;margin-left:4px}.rtg-grid-four{grid-template-columns:repeat(2,minmax(0,1fr))}.rtg-article-shell{grid-template-columns:minmax(0,1fr)}.rtg-aside{display:none}.rtg-mobile-toc{display:block;background:#eef4ef;border-radius:12px;padding:13px 18px;margin-bottom:25px}.rtg-mobile-toc summary{font-weight:750;cursor:pointer}.rtg-mobile-toc a{display:block;margin:7px 0;text-decoration:none}.rtg-hero{padding:40px 0}.rtg-hero-inner{grid-template-columns:1.2fr .8fr;gap:15px}}
@media(max-width:640px){.rtg-container{width:min(100% - 30px,1180px)}.rtg-hero-inner{grid-template-columns:1fr}.rtg-hero-art{max-width:290px;margin:auto}.rtg-hero h1{font-size:2.7rem}.rtg-hero p{font-size:1rem}.rtg-section{padding:40px 0}.rtg-grid{grid-template-columns:1fr}.rtg-grid-four{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.rtg-grid-four .rtg-tile{padding:14px}.rtg-feature{flex-direction:column;align-items:start}.rtg-footer-columns{grid-template-columns:1fr 1fr;gap:22px}.rtg-footer-columns>div:first-child{grid-column:span 2}.rtg-article-shell{padding:24px 0 50px}.rtg-article-header h1{font-size:2.1rem}.rtg-site-header{position:relative}.rtg-content{font-size:1rem}.rtg-search-large{flex-direction:column}.rtg-search-large button{min-height:44px}}

.rtg-nav-menu{display:flex;gap:14px;align-items:center;list-style:none;margin:0;padding:0}.rtg-mobile-panel .rtg-nav-menu{display:block}.rtg-nav-menu li{margin:0;padding:0}

/* AI-assisted step-by-step image captions; instructional, not testimonial media. */
.rtg-illustrated-step{margin:1.5rem 0 2.2rem;max-width:750px}
.rtg-illustrated-step img{display:block;width:100%;height:auto;border-radius:14px;background:#f2f0e9}
.rtg-illustrated-step figcaption{font-size:.78rem;line-height:1.55;color:#5d6864;margin-top:.45rem}