.firebase-guide-page #main-content,.firebase-guide-page #main-content h1,.firebase-guide-page #main-content h2,.firebase-guide-page #main-content h3,.firebase-guide-page #main-content h4,.firebase-guide-page #main-content p,.firebase-guide-page #main-content a,.firebase-guide-page #main-content li,.firebase-guide-page #main-content summary,.firebase-guide-page #main-content span{font-family:'Inter',sans-serif}
.firebase-hero{position:relative;overflow:hidden;padding:145px 0 68px;background:radial-gradient(circle at 82% 20%,rgba(37,99,235,.17),transparent 33%),linear-gradient(180deg,#06111e,#071322)}
.firebase-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}
.firebase-hero-copy{max-width:730px}
.firebase-hero-copy .crumb{margin-bottom:24px}
.firebase-hero-copy h1{font-family:'Space Grotesk';font-size:clamp(42px,5.7vw,66px);line-height:1.02;letter-spacing:-3px}
.firebase-hero-copy h1 em{color:var(--brand2);font-style:normal}
.firebase-hero-copy>p{max-width:620px;margin:18px 0 24px;color:var(--muted);font-size:15px}
.firebase-hero-actions{display:flex;flex-wrap:wrap;gap:10px}
.firebase-hero-actions .btn{font-size:11px}
.firebase-hero-card{padding:25px;border:1px solid #284762;border-radius:19px;background:linear-gradient(145deg,#0d2034,#091522);box-shadow:var(--shadow)}
.firebase-card-label{color:var(--brand2);font-size:9px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase}
.firebase-hero-card h2{margin:5px 0 13px;font-family:'Space Grotesk';font-size:24px}
.firebase-hero-card ul{display:grid;gap:8px;margin:0;padding:0;list-style:none}
.firebase-hero-card li{position:relative;padding-left:21px;color:#d7e2ef;font-size:11px}
.firebase-hero-card li:before{position:absolute;left:0;color:var(--brand2);content:"✓";font-weight:800}
.firebase-hero-card>p{margin-top:15px;padding-top:13px;border-top:1px solid var(--line);color:var(--soft);font-size:10px;line-height:1.7}
.firebase-page-nav{position:sticky;top:82px;z-index:20;border-block:1px solid rgba(255,255,255,.07);background:rgba(6,16,29,.94);backdrop-filter:blur(14px)}
.firebase-page-nav .container{display:flex;gap:25px;overflow-x:auto}
.firebase-page-nav a{flex:none;padding:13px 0;color:#aebdd0;font-size:10px;font-weight:700}
.firebase-page-nav a:hover{color:var(--brand2)}
.firebase-content-section{padding-top:56px}
.firebase-main-layout{display:grid;grid-template-columns:190px minmax(0,760px);justify-content:center;gap:55px;align-items:start}
.firebase-sidebar{position:sticky;top:139px;display:grid;gap:11px;padding:18px;border:1px solid var(--line);border-radius:14px;background:rgba(12,26,43,.75)}
.firebase-sidebar .eyebrow{margin-bottom:2px;font-size:9px;letter-spacing:1px}
.firebase-sidebar a{color:var(--muted);font-size:9px;line-height:1.5}
.firebase-sidebar a:hover{color:var(--brand2)}
.firebase-article{min-width:0}
.firebase-article>.eyebrow{margin-bottom:9px}
.firebase-article>h2{margin:36px 0 11px;font-family:'Space Grotesk';font-size:clamp(25px,3vw,33px);line-height:1.15;letter-spacing:-.8px;scroll-margin-top:145px}
.firebase-article>h2:first-of-type{margin-top:0}
.firebase-article>p{margin:0 0 14px;color:#bdcbd9;font-size:12px;line-height:1.9}
.firebase-article>p a{color:var(--brand2);text-decoration:underline;text-underline-offset:3px}
.firebase-article code{padding:2px 5px;border:1px solid rgba(56,189,248,.18);border-radius:5px;background:rgba(56,189,248,.06);color:#8edcff;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em}
.firebase-callout{margin:19px 0;padding:15px 17px;border:1px solid rgba(56,189,248,.2);border-radius:12px;background:rgba(56,189,248,.05);color:var(--muted);font-size:11px;line-height:1.8}
.firebase-callout strong{color:#eaf5ff}
.firebase-callout-note{border-color:rgba(250,204,21,.18);background:rgba(250,204,21,.035)}
.firebase-steps{display:grid;gap:12px;margin:16px 0 19px;padding:0;list-style:none;counter-reset:firebase-step}
.firebase-steps li{position:relative;padding-left:37px;color:var(--muted);font-size:11px;line-height:1.75;counter-increment:firebase-step}
.firebase-steps li:before{position:absolute;left:0;top:1px;display:grid;width:24px;height:24px;place-items:center;border:1px solid rgba(56,189,248,.22);border-radius:8px;background:rgba(37,99,235,.1);color:var(--brand2);content:counter(firebase-step,decimal-leading-zero);font-size:8px;font-weight:800}
.firebase-steps li span{color:#e7eef6;font-weight:700}
.firebase-code-label{margin:15px 0 7px;color:#aabbd0;font-size:10px;font-weight:700}
.firebase-code{max-width:100%;margin:9px 0 16px;padding:16px 18px;overflow-x:auto;border:1px solid #1d3550;border-radius:12px;background:#050e18;color:#dce7f2;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:10px;line-height:1.75;tab-size:4}
.firebase-code code{padding:0;border:0;background:none;color:inherit;font:inherit}
.firebase-faq-list{display:grid;gap:9px;margin-top:16px}
.firebase-faq{border:1px solid var(--line);border-radius:12px;background:linear-gradient(180deg,#0d1b2c,#0a1625)}
.firebase-faq summary{position:relative;padding:15px 44px 15px 17px;color:#e8eef6;font-size:11px;font-weight:700;cursor:pointer;list-style:none}
.firebase-faq summary::-webkit-details-marker{display:none}
.firebase-faq summary:after{position:absolute;right:17px;color:var(--brand2);content:"+";font-size:18px;line-height:1}
.firebase-faq[open] summary:after{content:"−"}
.firebase-faq>div{padding:0 17px 15px;color:var(--muted);font-size:10px;line-height:1.75}
.firebase-faq p{margin:0}
.firebase-security-list{display:grid;gap:10px;margin:15px 0 26px;padding:0;list-style:none}
.firebase-security-list li{position:relative;padding-left:24px;color:var(--muted);font-size:11px;line-height:1.7}
.firebase-security-list li:before{position:absolute;left:0;color:var(--brand2);content:"✓";font-weight:800}
.firebase-guide-cta{margin-top:35px;padding:25px;border:1px solid rgba(56,189,248,.2);border-radius:17px;background:radial-gradient(circle at 90% 10%,rgba(37,99,235,.15),transparent 35%),linear-gradient(145deg,#0d2034,#091421)}
.firebase-guide-cta .eyebrow{margin-bottom:7px}
.firebase-guide-cta h2{font-family:'Space Grotesk';font-size:clamp(25px,3vw,32px);line-height:1.15}
.firebase-guide-cta p{margin-top:8px;color:var(--muted);font-size:11px}
.firebase-guide-cta .btn{margin-top:17px;font-size:11px}
.firebase-article>.firebase-disclaimer{margin-top:17px;color:var(--soft);font-size:9px}
#overview,#register,#config-file,#gradle,#initialize,#verify,#troubleshooting,#security{scroll-margin-top:145px}
@media(max-width:850px){.firebase-hero-grid{grid-template-columns:1fr;gap:25px}.firebase-hero-card{max-width:620px}.firebase-main-layout{grid-template-columns:150px minmax(0,680px);gap:30px}}
@media(max-width:620px){.firebase-hero{padding:116px 0 48px}.firebase-hero-copy h1{font-size:42px;letter-spacing:-2px}.firebase-hero-copy>p{font-size:13px}.firebase-hero-actions .btn{width:100%}.firebase-hero-card{padding:20px}.firebase-page-nav{top:74px}.firebase-page-nav .container{gap:19px}.firebase-page-nav a{font-size:9px}.firebase-content-section{padding-top:36px}.firebase-main-layout{grid-template-columns:1fr;gap:22px}.firebase-sidebar{position:static;grid-template-columns:1fr 1fr;gap:10px}.firebase-sidebar .eyebrow{grid-column:1/-1}.firebase-article>h2{margin-top:29px;font-size:26px}.firebase-code{font-size:9px;padding:13px}.firebase-guide-cta{padding:21px}}
@media(prefers-reduced-motion:reduce){.firebase-hero:after{display:none}}