:root{--paper: #fbfaf5;--paper-2: #f2efe6;--ink: #102344;--navy: #102b4e;--line: #b7c1c8;--zinc: #63707a;--orange: #d94716;--clay: #a93624;--aqua: #5fa6aa;--soft-aqua: #e5f0ef;--map-blueprint: url(/images/sgv-river-map-blueprint.webp);--air-blueprint: url(/images/air-blueprint-card.webp);--power-blueprint: url(/images/power-blueprint-card.webp);--water-blueprint: url(/images/water-blueprint-card.webp);--shadow: 0 18px 40px rgba(16, 35, 68, .12);color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--paper)}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--ink);background:linear-gradient(rgba(16,43,78,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(16,43,78,.045) 1px,transparent 1px),var(--paper);background-size:44px 44px;line-height:1.6}body:before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 30% 10%,rgba(95,166,170,.12),transparent 28%),linear-gradient(120deg,transparent 0 58%,rgba(217,71,22,.06) 58% 58.25%,transparent 58.25%);z-index:-1}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}img{display:block;max-width:100%;height:auto;background:var(--paper-2)}h1,h2,h3{font-family:Courier New,ui-monospace,SFMono-Regular,Menlo,monospace;line-height:1.05;letter-spacing:0;color:var(--navy);margin:0 0 18px}h1{font-size:clamp(2.35rem,4.65vw,4.25rem);max-width:13ch}h2{font-size:clamp(1.8rem,3.2vw,3rem)}h3{font-size:1.35rem}p{margin:0 0 18px;max-width:76ch}ul{margin:0;padding-left:22px}li+li{margin-top:8px}table{border-collapse:collapse;width:100%;background:#ffffffa3}th,td{border:1px solid var(--line);text-align:left;vertical-align:top;padding:14px}th{background:var(--navy);color:#fff;font-weight:750}.skip-link{position:absolute;left:12px;top:-48px;background:#fff;padding:10px 12px;z-index:10}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:8;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;min-height:78px;padding:12px clamp(16px,4vw,56px);background:#fbfaf5f2;border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.brand{display:inline-flex;align-items:center;gap:12px;font-family:Courier New,ui-monospace,monospace;font-weight:800;font-size:clamp(1.05rem,2vw,1.5rem);text-decoration:none;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border:2px solid var(--navy);color:var(--navy);background:#fff;font-size:.82rem}.desktop-nav{display:flex;align-items:center;justify-content:center;gap:22px;font-size:.94rem;font-weight:760}.desktop-nav a{text-decoration:none}.header-actions,.cta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.header-actions{flex-wrap:nowrap;gap:10px}.header-phone,.header-book,.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 18px;border:2px solid var(--navy);text-decoration:none;font-weight:800;font-size:.96rem;white-space:nowrap;max-width:100%}.header-phone{min-height:44px;padding:10px 14px;font-size:.86rem}.header-book{min-height:44px;padding:10px 15px;font-size:.9rem}.header-book,.button.primary{background:var(--orange);border-color:var(--orange);color:#fff}.header-phone,.button.secondary{background:#ffffffb3}main{width:min(100%,1540px);margin:0 auto;padding:0 clamp(16px,4vw,58px) 80px}.breadcrumbs{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:18px 0;font-size:.84rem;color:var(--zinc)}section,article.long-guide>section{padding:clamp(36px,6vw,88px) 0;border-bottom:1px solid rgba(16,43,78,.16)}.hero,.intro-band.with-image{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(340px,.92fr);gap:clamp(28px,5vw,72px);align-items:center;min-height:calc(100vh - 154px)}.hero,.intro-band{position:relative;isolation:isolate;overflow:hidden;border:1px solid rgba(16,43,78,.18);padding-inline:clamp(18px,3vw,38px)}.hero:before,.intro-band:before{content:"";position:absolute;inset:0;z-index:-2;background-image:var(--map-blueprint);background-size:cover;background-position:center;opacity:.68}.hero:after,.intro-band:after{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(ellipse at 22% 46%,#fbfaf5eb,#fbfaf5c2 34%,#fbfaf52e 72%),linear-gradient(90deg,#fbfaf59e,#fbfaf547 48%,#fbfaf514),linear-gradient(rgba(16,43,78,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(16,43,78,.04) 1px,transparent 1px);background-size:auto,auto,36px 36px,36px 36px}.intro-band:before{opacity:.54}.intro-band:after{background:radial-gradient(ellipse at 20% 42%,#fbfaf5f0,#fbfaf5cc 42%,#fbfaf55c 76%),linear-gradient(90deg,#fbfaf5b8,#fbfaf557),linear-gradient(rgba(16,43,78,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(16,43,78,.04) 1px,transparent 1px);background-size:auto,auto,36px 36px,36px 36px}.hero>*,.intro-band>*{position:relative;z-index:1}.hero{padding-top:clamp(28px,4vw,54px);padding-bottom:clamp(34px,5vw,64px)}.hero-copy p:first-of-type,.intro-band>p:first-of-type,.intro-band.with-image p:first-of-type{font-size:clamp(1.05rem,2vw,1.28rem)}.atlas-frame{position:relative;border:2px solid var(--navy);background:#fff;box-shadow:var(--shadow)}.atlas-frame img,.intro-band.with-image img,.split-band img{width:100%;aspect-ratio:3 / 2;object-fit:cover}.map-note{position:absolute;right:18px;bottom:18px;max-width:220px;padding:12px;background:#fbfaf5eb;border:2px solid var(--clay);color:var(--clay);font-family:Courier New,monospace;font-weight:800;text-transform:uppercase;font-size:.86rem}.section-label{display:block;margin-bottom:14px;color:var(--clay);font-family:Courier New,ui-monospace,monospace;font-weight:800;text-transform:uppercase}.check-first,.content-rail,.split-band,.field-memo{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:clamp(24px,5vw,64px);align-items:start}.check-grid,.service-grid,.city-grid,.article-grid,.signal-grid,.source-grid,.link-grid,.memo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}.check-grid article,.service-card,.city-card,.article-card,.signal-grid div,.source-grid a,.conversion-panel,.answer-box,.reviews-visible blockquote,details,.memo-grid article{border:1px solid var(--line);background:#ffffffad;padding:22px;border-radius:6px;box-shadow:0 8px 24px #1023440d}.blueprint-card{position:relative;isolation:isolate;overflow:hidden;min-height:258px;display:flex;flex-direction:column;justify-content:flex-end;border-color:#102b4e57;background:transparent}.blueprint-card:before{content:"";position:absolute;inset:0;z-index:-2;background-image:var(--card-blueprint);background-size:auto 100%;background-position:left center;background-repeat:no-repeat;opacity:.92;transform:scale(1.01)}.blueprint-card:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,#fbfaf500,#fbfaf547 48%,#fbfaf5c7),linear-gradient(90deg,#fbfaf56b,#fbfaf533 46%,#fbfaf58a)}.blueprint-card h3{font-size:clamp(2rem,4vw,3.15rem);margin-bottom:10px;text-shadow:0 1px 0 #fff,0 0 16px rgba(255,255,255,.92)}.blueprint-card p{margin-bottom:0;font-weight:650;text-shadow:0 1px 0 #fff,0 0 14px rgba(255,255,255,.95)}.air-card{--card-blueprint: var(--air-blueprint)}.power-card{--card-blueprint: var(--power-blueprint)}.water-card{--card-blueprint: var(--water-blueprint)}.check-grid article:nth-child(2),.service-card:hover,.city-card:hover,.article-card:hover{background:#fff4ee;border-color:#d9471666}.check-grid .blueprint-card:nth-child(2),.check-grid .blueprint-card:hover{background:transparent}.service-card,.city-card,.article-card,.source-grid a,.link-grid a{text-decoration:none}.service-card span,.city-card span,.article-card span{color:var(--clay);font-weight:850;font-size:.78rem;text-transform:uppercase}.three-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.three-columns>article{border-left:3px solid var(--orange);padding-left:22px}.link-grid a,.link-list a{display:inline-flex;min-height:44px;align-items:center;border:1px solid var(--line);background:#ffffffbf;padding:10px 12px;border-radius:4px;font-weight:750}.link-list{display:grid;gap:8px}.matrix-section{overflow-x:auto}.local-signal-stack .signal-grid div:nth-child(odd){border-color:#5fa6aa8c;background:var(--soft-aqua)}.review-stack{display:grid;gap:16px}blockquote{margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(1.05rem,2vw,1.28rem)}details+details{margin-top:12px}summary{cursor:pointer;font-weight:850;color:var(--navy)}details p{margin-top:12px}.source-grid a span{display:block;margin-top:8px;color:var(--zinc);font-size:.92rem}.site-footer{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.7fr);gap:32px;padding:clamp(38px,6vw,70px) clamp(16px,5vw,60px) 96px;background:var(--navy);color:#fff}.site-footer h2{color:#fff}.footer-links{display:grid;grid-template-columns:repeat(2,minmax(120px,1fr));gap:10px}.footer-links a{color:#fff}.mobile-sticky{display:none}.reviews-lead{max-width:76ch;color:var(--zinc);font-size:.96rem;margin-bottom:18px}.review-card{background:#ffffffc7;border:1px solid var(--line);border-left:3px solid var(--clay);border-radius:6px;padding:22px;box-shadow:0 8px 24px #1023440d;font-family:Georgia,Times New Roman,serif}.review-card .review-meta{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:12px;font-family:Courier New,ui-monospace,monospace;font-size:.86rem;color:var(--zinc)}.review-stars{color:var(--orange);font-size:1.05rem;letter-spacing:1px}.review-card strong{color:var(--navy);font-size:.96rem}.review-card .review-city{color:var(--aqua);font-weight:700;text-transform:uppercase}.review-card p{margin:0;font-size:1.04rem;line-height:1.55}.data-grid{width:100%;border-collapse:collapse;margin:18px 0;font-size:.96rem}.data-grid th,.data-grid td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}.data-grid th{background:var(--soft-aqua);color:var(--navy);font-family:Courier New,monospace;font-weight:800;font-size:.84rem;text-transform:uppercase;letter-spacing:.05em;border:1px solid var(--line)}.data-grid td:first-child{width:28%;color:var(--ink);font-weight:600}.data-grid td:last-child{color:var(--zinc)}.companion-list{list-style:none;padding:0;margin:18px 0;display:grid;gap:12px}.companion-list li{background:#ffffffbd;border:1px solid var(--line);border-left:3px solid var(--aqua);padding:14px 16px;border-radius:4px}.companion-list li strong{color:var(--clay);font-family:Courier New,monospace}.misconception-section .misconception-card{background:#ffffffb3;border:1px solid var(--line);border-left:3px solid var(--orange);padding:16px 20px;border-radius:4px;margin-bottom:14px}.misconception-claim{color:var(--clay);margin-bottom:8px}.misconception-reality{color:var(--ink);margin:0}.what-not-section,.upsell-section{padding:24px;background:#fff9;border:1px dashed var(--line);border-radius:4px}.eeat-byline{display:flex;flex-wrap:wrap;gap:14px;align-items:baseline;padding:18px 22px;margin:24px 0;background:var(--soft-aqua);border:1px solid var(--line);border-left:3px solid var(--aqua);border-radius:4px;font-family:Courier New,monospace;font-size:.92rem}.eeat-byline strong{color:var(--navy);font-size:1rem}.eeat-byline .eeat-label{color:var(--clay);text-transform:uppercase;font-weight:800;font-size:.78rem;letter-spacing:.06em}.eeat-byline .eeat-credentials{color:var(--zinc);font-size:.86rem}.eeat-byline time{color:var(--ink);font-weight:700}@media(max-width:1080px){.site-header{grid-template-columns:1fr;gap:12px}.desktop-nav{justify-content:flex-start;overflow-x:auto;padding-bottom:4px}.hero,.intro-band.with-image,.check-first,.content-rail,.split-band,.field-memo,.site-footer{grid-template-columns:1fr;min-height:auto}h1{max-width:13ch}}@media(max-width:760px){body{background-size:30px 30px}.site-header{position:relative;padding:14px 16px}.brand{white-space:normal}.desktop-nav{gap:14px;flex-wrap:wrap;overflow:visible}.header-actions{display:none}.button,.header-phone,.header-book{min-height:46px;padding:10px 14px;white-space:normal;overflow-wrap:anywhere;text-align:center;line-height:1.2}main{padding:0 16px 74px}h1{font-size:clamp(2.15rem,13vw,3.4rem);max-width:100%}h2{font-size:clamp(1.65rem,9vw,2.35rem)}section,article.long-guide>section{padding:34px 0}.hero,.intro-band.with-image{gap:24px}.three-columns{grid-template-columns:1fr}th,td{min-width:190px}.mobile-sticky{position:fixed;left:0;right:0;bottom:0;z-index:9;display:grid;grid-template-columns:1fr .48fr;background:var(--paper);border-top:2px solid var(--navy)}.mobile-sticky a{display:grid;place-items:center;min-height:58px;font-weight:850;text-decoration:none;border-right:1px solid var(--line)}.mobile-sticky a:first-child{background:var(--orange);color:#fff}}