/* PowerISO.org layout, original code, 2026 */
:root{--blue:#0f6cbd;--hero:#5993bc;--ink:#212529;--muted:#555e66;--line:#e0e5ea;--light:#f8fafc}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.5 Arial,Helvetica,sans-serif;color:var(--ink);background:#fff}
a{color:#0965af;text-decoration:none}a:hover{text-decoration:underline;color:#064d8b}
.container{width:100%;max-width:1140px;margin:0 auto;padding:0 15px}
.navbar{background:var(--blue);min-height:58px;color:#fff}.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:58px;gap:20px}.navbar-brand{display:flex;align-items:center;min-height:45px}.navbar-brand img{width:150px;height:32px;object-fit:contain}
.nav-links{display:flex;flex-wrap:wrap;gap:26px;align-items:center;margin:0;padding:0;list-style:none}.nav-links a{display:block;padding:14px 0;color:#fff;font-size:16px}.nav-links a:hover{color:#fff}.nav-links a.active{border-bottom:2px solid white}
.menu-toggle{display:none;background:transparent;border:1px solid #d1e4f7;border-radius:4px;color:#fff;padding:7px 12px;font-size:19px;cursor:pointer}
.hero{background:var(--hero);padding:40px 0}.hero-inner{display:grid;grid-template-columns:7fr 5fr;gap:30px;align-items:center}.hero h5{color:#f99220;font-size:20px;font-weight:400;line-height:1.8;margin:0 0 10px}.hero .features{color:#fff;font-size:16px;font-weight:400;line-height:1.8;margin:0}.hero img{width:100%;height:auto;max-width:100%}
.row{display:flex;flex-wrap:wrap;gap:24px}.col-wide{width:calc(66.666% - 12px)}.col-small{width:calc(33.333% - 12px)}
h1,h2,h3,h4,h5{line-height:1.3}h1{font-size:28px}h2{font-size:23px}h3{font-size:20px}h4{font-size:18px}h5{font-size:20px;font-weight:500;margin:0 0 14px}h6{font-size:16px}p{margin:0 0 15px}
.btn{display:inline-block;border:1px solid var(--blue);background:var(--blue);color:#fff;border-radius:5px;font-size:16px;line-height:1.5;padding:8px 14px;cursor:pointer;text-align:center}.btn:hover,.btn:focus{background:#07589e;border-color:#07589e;color:#fff;text-decoration:none}
.btn-outline{background:white;color:var(--blue)}.btn-outline:hover{background:#ebf6ff;color:var(--blue)}.btn-small{font-size:14px;padding:6px 10px}
.home-version{padding:23px 0 17px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:16px}.home-version h2{font-size:20px;font-weight:500;margin:0 0 8px}.home-version p{margin:0}.home-abstract{padding:38px 0 27px;border-bottom:1px solid var(--line)}.home-abstract h2{font-size:20px;font-weight:500;margin:0 0 20px}.feature-grid{padding:45px 0 55px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px 26px}.feature-grid h3{font-size:20px;font-weight:500;margin:0 0 10px}.feature-grid h3 img{width:22px;vertical-align:middle}.feature-grid p{margin-left:25px}
.content{padding-top:25px;padding-bottom:70px;min-height:60vh}.content h1{font-size:21px;color:#264c99;font-weight:600;margin:0 0 16px}.content h2{font-size:20px;color:#264c99;margin:30px 0 13px}.content h3{font-size:17px;margin:24px 0 10px}.content li{margin:0 0 8px}.content p{line-height:1.7}.lead{font-size:17px;color:#35495d}.muted{color:var(--muted)}.center{text-align:center}.bread{font-size:13px;color:#596e85;margin-bottom:17px}.bread a{color:#4d6680}.guide-columns{display:grid;grid-template-columns:2fr 1fr;gap:34px}.guide-sidebar{align-self:start;border:1px solid var(--line);background:#fbfdff;border-radius:5px;padding:20px;position:sticky;top:15px}.guide-sidebar h2{font-size:18px;margin:0 0 13px}.guide-sidebar ul{padding-left:19px}.guide-sidebar li{margin-bottom:10px}.answer{padding:14px 18px;border-left:3px solid var(--blue);background:#f3f8fe;margin:18px 0}.note{border:1px solid #dbe5ef;border-radius:5px;padding:15px 18px;background:var(--light);margin:20px 0}.steps{padding-left:24px}.steps li{margin-bottom:15px;padding-left:4px}.screenshot{max-width:100%;height:auto;border:1px solid #d9dde4;box-shadow:0 2px 8px #0001;margin:12px 0 24px}.faq{border-top:1px solid var(--line);padding:14px 0}.faq h3{font-size:16px;margin:0 0 9px}.faq p{margin:0}.related-links{display:grid;grid-template-columns:repeat(2,1fr);gap:7px 14px}.index-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.index-group{border:1px solid #e2e7ed;background:#fff;border-radius:6px;padding:22px}.index-group h2{margin:0 0 15px}.index-group ul{padding-left:20px}.download-table{width:100%;border-collapse:collapse;margin:16px 0 26px}.download-table td,.download-table th{border:1px solid #e1e5e8;padding:14px;text-align:left}.download-table th{background:#f6f6f6;color:#264c99}.download-table .version{color:#777;font-weight:600}.dl-buttons{display:flex;flex-wrap:wrap;gap:12px;margin:16px 0}.dl-icon{display:inline-block;margin-right:8px;vertical-align:middle}.detail-list{padding-left:25px}
.footer{border-top:1px solid var(--line);padding:35px 0;color:#666;text-align:center;font-size:14px}.footer a{color:#486178}.footer nav{margin:0 0 16px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
@media(max-width:767px){.menu-toggle{display:block}.nav-inner{flex-wrap:wrap}.nav-links{width:100%;display:none;flex-direction:column;gap:0;align-items:stretch;padding:6px 0 15px}.nav-links.open{display:flex}.nav-links a{padding:9px 4px}.hero-inner{grid-template-columns:1fr}.hero{padding:28px 0}.home-version{align-items:flex-start;flex-direction:column}.feature-grid{grid-template-columns:1fr}.guide-columns{grid-template-columns:1fr}.guide-sidebar{position:static}.related-links,.index-groups{grid-template-columns:1fr}}
@media(min-width:768px) and (max-width:1050px){.feature-grid{grid-template-columns:repeat(2,1fr)}}

.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Additive GEO/AEO article summary components: no existing design overrides */
.aeo-fact-panel{border:1px solid #e2e8ee;background:#f9fbfe;border-radius:6px;padding:18px 20px;margin:23px 0}.aeo-fact-panel h2{font-size:21px;margin:0 0 14px}.aeo-fact-panel p{margin:14px 0 0}.aeo-fact-table{width:100%;border-collapse:collapse;font-size:15px}.aeo-fact-table tr+tr{border-top:1px solid #e0e7ee}.aeo-fact-table th,.aeo-fact-table td{padding:10px 9px;text-align:left;vertical-align:top}.aeo-fact-table th{width:25%;font-weight:700;color:#1e3a59}.aeo-source{font-size:13px;color:#586774}.aeo-home-decisions{padding:25px 0;border-bottom:1px solid #e0e5ea;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.aeo-home-decisions>h2{grid-column:1/-1;margin:0}.aeo-choice{border:1px solid #e1e5ea;border-radius:5px;padding:14px 16px}.aeo-choice h3{margin:0 0 9px;font-size:18px}.aeo-choice p{margin:0}@media(max-width:700px){.aeo-home-decisions{grid-template-columns:1fr}.aeo-fact-table th{width:35%}.aeo-fact-panel{padding:14px}}