/* Layout: route-sheet rhythm. Full-width bands, 1120px inner column, poolside-card mockups as the one bold object. */
:root{
  --bg:#eef4f6; --surface:#ffffff; --surface-2:#e2ecf0; --ink:#0c2233; --muted:#4a6272; --line:#c9d8df;
  --water:#0a7aa3; --water-ink:#ffffff; --deep:#0c2233; --deep-fg:#e9f3f7;
  --phenol:#cf3f66; --oto:#d9a514; --ok:#1d8a5a; --warn:#b26a00;
  --f-display:"Barlow Condensed","Arial Narrow",system-ui,sans-serif;
  --f-body:"Public Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-data:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --r:10px; --wrap:1120px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#071520; --surface:#0d2130; --surface-2:#13293a; --ink:#e3eef3; --muted:#9db3c0; --line:#24405250;
  --water:#3db2dc; --water-ink:#04131c; --deep:#03101a; --deep-fg:#e3eef3;
  --phenol:#ef6c8f; --oto:#f0c443; --ok:#4cc58d; --warn:#f0a43a; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#071520; --surface:#0d2130; --surface-2:#13293a; --ink:#e3eef3; --muted:#9db3c0; --line:#24405250;
  --water:#3db2dc; --water-ink:#04131c; --deep:#03101a; --deep-fg:#e3eef3;
  --phenol:#ef6c8f; --oto:#f0c443; --ok:#4cc58d; --warn:#f0a43a; color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--f-body)}
a{color:var(--water)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--water);outline-offset:2px}
h1,h2,h3{font-family:var(--f-display);line-height:1.02;letter-spacing:.005em;text-wrap:balance;margin:0}
h1{font-size:clamp(2.6rem,7vw,4.6rem);font-weight:700;text-transform:uppercase}
h2{font-size:clamp(2rem,4.5vw,3rem);font-weight:700;text-transform:uppercase}
h3{font-size:1.45rem;font-weight:600}
p{margin:0}
.band{padding-block:clamp(56px,8vw,96px);padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.wrap{max-width:var(--wrap);margin:0 auto}
.eyebrow{font:600 .78rem/1 var(--f-body);letter-spacing:.14em;text-transform:uppercase;color:var(--water)}
.lede{font-size:1.15rem;color:var(--muted);max-width:60ch}
.stack{display:grid;gap:16px}
.section-head{display:grid;gap:12px;margin-bottom:40px;max-width:720px}

/* header */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--bg)}
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:9;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.site-header .wrap{display:flex;align-items:center;gap:20px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font:700 1.5rem/1 var(--f-display);text-transform:uppercase;letter-spacing:.02em}
.brand svg{width:30px;height:30px;flex:none}
.brand b{color:var(--water)}
.nav{display:flex;gap:22px;margin-left:auto;align-items:center}
.nav a{color:var(--ink);text-decoration:none;font-weight:500;font-size:.95rem}
.nav a:hover{color:var(--water)}
.nav .btn{color:var(--water-ink)}
.nav a{white-space:nowrap}.nav a.login{font-weight:700;color:var(--water)}
@media (max-width:760px){.nav{gap:12px}.nav a:not(.btn):not(.login){display:none}.nav .btn{padding:9px 12px;font-size:.88rem}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 22px;border-radius:var(--r);border:2px solid var(--water);background:var(--water);color:var(--water-ink);font:700 1rem/1 var(--f-body);text-decoration:none;cursor:pointer}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--water)}

/* hero */
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero-copy{display:grid;gap:22px;min-width:0}
.hero h1 span{color:var(--water)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.fine{font-size:.88rem;color:var(--muted)}
@media (max-width:880px){.hero .wrap{grid-template-columns:1fr;gap:40px}}

/* phone mock */
.phone{justify-self:center;width:min(340px,100%);background:var(--deep);border-radius:34px;padding:12px;box-shadow:0 30px 60px -25px #0c223380}
.screen{background:var(--surface);border-radius:24px;overflow:hidden;color:var(--ink)}
.scr-top{background:var(--water);color:var(--water-ink);padding:14px 16px;display:grid;gap:2px}
.scr-top small{font:600 .72rem/1 var(--f-body);letter-spacing:.12em;text-transform:uppercase;opacity:.85}
.scr-top strong{font:700 1.35rem/1.1 var(--f-display);text-transform:uppercase}
.banner{display:flex;gap:8px;align-items:center;background:color-mix(in srgb,var(--oto) 22%,var(--surface));color:var(--ink);font-size:.82rem;font-weight:600;padding:8px 16px}
.readings{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);font-family:var(--f-data)}
.rd{background:var(--surface);padding:10px 14px;display:grid;gap:2px}
.rd .k{font:600 .7rem/1 var(--f-body);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:6px}
.rd .v{font-size:1.35rem;font-weight:700;font-variant-numeric:tabular-nums}
.rd .was{font-size:.72rem;color:var(--muted)}
.vial{width:9px;height:9px;border-radius:50%;display:inline-block}
.dose{margin:12px 14px;padding:12px;border-radius:8px;background:var(--surface-2);font-size:.86rem;display:grid;gap:4px}
.dose b{font-family:var(--f-data)}
.checks{display:flex;flex-wrap:wrap;gap:6px;padding:0 14px 14px}
.chip{font-size:.76rem;font-weight:600;padding:5px 9px;border-radius:999px;background:color-mix(in srgb,var(--ok) 16%,var(--surface));color:var(--ink)}
.scr-cta{margin:0 14px 14px;padding:12px;border-radius:8px;background:var(--water);color:var(--water-ink);text-align:center;font-weight:700;font-size:.92rem}

/* route strip */
.strip{background:var(--deep);color:var(--deep-fg)}
.strip .wrap{display:flex;flex-wrap:wrap;gap:12px 32px;align-items:baseline;justify-content:space-between;padding-block:22px}
.strip p{font-family:var(--f-display);font-size:1.35rem;text-transform:uppercase;letter-spacing:.03em}
.strip p b{color:var(--water);font-family:var(--f-data);font-size:1.1rem}

/* how it works */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:s;list-style:none;padding:0;margin:0}
.steps li{display:grid;gap:12px;align-content:start;padding-top:20px;border-top:3px solid var(--water)}
.steps .n{font:700 3.2rem/1 var(--f-display);color:var(--water)}
.steps p{color:var(--muted)}
@media (max-width:820px){.steps{grid-template-columns:1fr}}

/* report */
.alt{background:var(--surface)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split > *{min-width:0}
@media (max-width:880px){.split{grid-template-columns:1fr;gap:36px}}
.report{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:22px;display:grid;gap:14px;max-width:440px;justify-self:center;width:100%}
.report header{display:flex;justify-content:space-between;gap:12px;align-items:baseline;flex-wrap:wrap}
.report header strong{font:700 1.3rem/1 var(--f-display);text-transform:uppercase}
.report table{width:100%;border-collapse:collapse;font-size:.9rem}
.report td{padding:7px 0;border-bottom:1px solid var(--line)}
.report td:last-child{text-align:right;font-family:var(--f-data);font-variant-numeric:tabular-nums}
.pill{font-size:.72rem;font-weight:700;padding:3px 8px;border-radius:999px;margin-left:6px;vertical-align:1px}
.pill.ok{background:color-mix(in srgb,var(--ok) 18%,transparent);color:var(--ok)}
.photos{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.photo{aspect-ratio:4/3;border-radius:8px;display:grid;place-items:end start;padding:8px;font-size:.72rem;font-weight:700;color:#fff;max-width:100%}
.photo.before{background:linear-gradient(160deg,#5b7f4d,#3f6b4a 60%,#2e5240)}
.photo.after{background:linear-gradient(160deg,#36b7df,#1a8fbf 60%,#0f6d99)}
.gbtn{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-weight:700;font-size:.92rem}
.stars{color:var(--oto);letter-spacing:2px}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.ticks li{padding-left:28px;position:relative}
.ticks li::before{content:"";position:absolute;left:0;top:.45em;width:14px;height:8px;border-left:3px solid var(--water);border-bottom:3px solid var(--water);transform:rotate(-45deg)}

/* features */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.feature{background:var(--bg);padding:26px;display:grid;gap:8px;align-content:start}
.feature p{color:var(--muted);font-size:.95rem}
.feature code{font-family:var(--f-data);font-size:.85em}
@media (max-width:880px){.features{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.features{grid-template-columns:1fr}}

/* calculator */
.calc{background:var(--deep);color:var(--deep-fg)}
.calc .lede{color:color-mix(in srgb,var(--deep-fg) 75%,transparent)}
.calc-box{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.calc-box > *{min-width:0}
@media (max-width:820px){.calc-box{grid-template-columns:1fr}}
.slider{display:grid;gap:10px}
.slider label{font-weight:600}
.slider output{font:700 3.4rem/1 var(--f-data);color:var(--water)}
input[type=range]{width:100%;accent-color:var(--water)}
.bars{display:grid;gap:16px}
.bar{display:grid;gap:6px}
.bar .lbl{display:flex;justify-content:space-between;gap:12px;font-size:.92rem}
.bar .lbl b{font-family:var(--f-data);font-variant-numeric:tabular-nums}
.track{height:14px;border-radius:7px;background:color-mix(in srgb,var(--deep-fg) 12%,transparent);overflow:hidden}
.fill{height:100%;border-radius:7px;background:color-mix(in srgb,var(--deep-fg) 55%,transparent);transition:width .25s}
.fill.rb{background:var(--water)}
.calc .fine{color:color-mix(in srgb,var(--deep-fg) 65%,transparent)}

/* pricing */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
@media (max-width:900px){.plans{grid-template-columns:1fr}}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:28px;display:grid;gap:16px;grid-template-rows:auto auto auto 1fr auto}
.plan.main{border:2px solid var(--water)}
.plan .price{font:700 3rem/1 var(--f-display)}
.plan .price s{font-size:1.4rem;color:var(--muted);margin-left:8px;font-weight:500}
.plan .per{color:var(--muted);font-size:.92rem}
.plan ul{margin:0;padding:0;list-style:none;display:grid;gap:10px;font-size:.95rem}
.plan li{padding-left:22px;position:relative}
.plan li::before{content:"";position:absolute;left:2px;top:.5em;width:10px;height:6px;border-left:2px solid var(--water);border-bottom:2px solid var(--water);transform:rotate(-45deg)}
.tag{justify-self:start;font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:5px 10px;border-radius:999px;background:var(--water);color:var(--water-ink)}

/* reserve form */
.reserve .split{align-items:start}
form.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:26px;display:grid;gap:16px}
.field{display:grid;gap:6px}
.field label{font-weight:600;font-size:.92rem}
.field input,.field select,.field textarea{font:inherit;padding:12px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--ink);width:100%}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:520px){.row2{grid-template-columns:1fr}}
.form-msg{font-weight:600}
.form-msg.ok{color:var(--ok)}
.form-msg.err{color:var(--phenol)}
.hp{position:absolute;left:-9999px}

/* faq */
.faq{display:grid;gap:0;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{cursor:pointer;font-weight:700;font-size:1.05rem;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::after{content:"+";font:700 1.4rem/1 var(--f-data);color:var(--water)}
.faq details[open] summary::after{content:"−"}
.faq details p{margin-top:10px;color:var(--muted);max-width:70ch}

/* review prompt */
.review{background:var(--surface-2)}
.review .wrap{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}

/* footer */
.site-footer{background:var(--deep);color:var(--deep-fg);padding-block:40px calc(40px + env(safe-area-inset-bottom,0px));padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:20px 40px;justify-content:space-between;align-items:center}
.site-footer a{color:var(--deep-fg);opacity:.85}
.site-footer nav{display:flex;flex-wrap:wrap;gap:18px}
.site-footer .brand{color:var(--deep-fg)}
.disclaimer{font-size:.82rem;opacity:.7;max-width:70ch}

/* feedback */
.fb-btn{position:fixed;right:calc(18px + env(safe-area-inset-right,0px));bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:20;height:48px;padding:0 18px 0 14px;border-radius:999px;border:0;background:var(--water);color:var(--water-ink);display:flex;align-items:center;gap:8px;font:700 .95rem/1 var(--f-body);cursor:pointer;box-shadow:0 10px 24px -8px #0c223399}
.fb-btn svg{width:22px;height:22px}
.fb-panel{max-height:calc(100vh - 110px);overflow-y:auto;position:fixed;right:calc(18px + env(safe-area-inset-right,0px));bottom:calc(78px + env(safe-area-inset-bottom,0px));z-index:20;width:min(360px,calc(100vw - 32px));background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:0 20px 50px -20px #0c2233aa;padding:20px}
.fb-panel form{display:grid;gap:12px}
.fb-panel h3{font-size:1.3rem}
.fb-kinds{display:flex;gap:6px;flex-wrap:wrap}
.fb-kinds label{font-size:.85rem;font-weight:600;border:1px solid var(--line);border-radius:999px;padding:6px 10px;cursor:pointer}
.fb-kinds input{position:absolute;opacity:0}
.fb-kinds input:checked + span{color:var(--water)}
.fb-kinds label:has(input:checked){border-color:var(--water)}
.fb-close{position:absolute;top:10px;right:12px;background:none;border:0;font-size:1.4rem;color:var(--muted);cursor:pointer}

/* help page */
.doc{display:grid;grid-template-columns:240px 1fr;gap:48px;align-items:start}
.doc > *{min-width:0}
.toc{position:sticky;top:calc(84px + env(safe-area-inset-top,0px));display:grid;gap:8px;font-size:.95rem}
.toc a{color:var(--muted);text-decoration:none}
.toc a:hover{color:var(--water)}
@media (max-width:860px){.doc{grid-template-columns:1fr}.toc{position:static;grid-template-columns:1fr 1fr}}
.doc article{display:grid;gap:56px}
.doc section{display:grid;gap:14px;scroll-margin-top:90px}
.doc section > p,.doc li{max-width:68ch}
.doc ol,.doc ul{margin:0;padding-left:22px;display:grid;gap:8px}
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r)}
.tbl table{width:100%;border-collapse:collapse;font-size:.93rem;min-width:520px}
.tbl th,.tbl td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line)}
.tbl th{background:var(--surface-2);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
.tbl td.num{font-family:var(--f-data);font-variant-numeric:tabular-nums;white-space:nowrap}
.note{border-left:4px solid var(--oto);background:var(--surface);padding:14px 16px;border-radius:0 8px 8px 0;font-size:.93rem}
.page-hero{padding-bottom:24px}

.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.fb-rate{border:0;margin:0;padding:0;display:grid;gap:4px}
.fb-rate legend{font-weight:600;font-size:.92rem;padding:0;margin-bottom:4px}
.stars-input{display:inline-flex;flex-direction:row-reverse;justify-content:flex-end;gap:2px}
.stars-input input{position:absolute;opacity:0;pointer-events:none}
.stars-input label{font-size:2rem;line-height:1;color:var(--line);cursor:pointer;padding:2px;transition:color .1s}
.stars-input label:hover,.stars-input label:hover ~ label,.stars-input input:checked ~ label{color:var(--oto)}
.stars-input input:focus-visible + label{outline:3px solid var(--water);outline-offset:2px;border-radius:4px}

/* hero photo + phone composite */
.hero-visual{position:relative;min-width:0;padding:0 0 36px 150px}
.hero-photo{margin:0;border-radius:22px;overflow:hidden;aspect-ratio:4/5;background:var(--surface-2);box-shadow:0 30px 60px -30px #0c223366}
.hero-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 35%;display:block}
.hero-visual .phone{position:absolute;left:0;bottom:0;width:300px;margin:0;transform:scale(.66);transform-origin:bottom left;z-index:1}
.hero-chip{position:absolute;top:22px;right:-12px;z-index:2;display:flex;gap:10px;align-items:center;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:999px;padding:10px 16px;font-size:.88rem;box-shadow:0 14px 30px -18px #0c223380}
.hero-chip .dot{width:10px;height:10px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px color-mix(in srgb,var(--ok) 25%,transparent)}
@media (max-width:880px){.hero-visual{max-width:520px;justify-self:center;width:100%}}
@media (max-width:520px){
  .hero-visual{padding:0 0 24px 96px}
  .hero-visual .phone{transform:scale(.5)}
  .hero-chip{right:8px;top:12px;font-size:.8rem;padding:8px 12px}
}

/* homeowner report over backyard photo */
.report-visual{position:relative;display:grid;min-width:0}
.yard-photo{margin:0;border-radius:22px;overflow:hidden;grid-area:1/1;aspect-ratio:4/5;background:var(--surface-2);max-width:460px;justify-self:end;width:85%}
.yard-photo img{width:100%;height:100%;object-fit:cover;display:block}
.report-visual .report{grid-area:1/1;align-self:end;justify-self:start;max-width:380px;margin-bottom:-24px;box-shadow:0 30px 60px -28px #0c223380;position:relative}
@media (max-width:880px){.report-visual{max-width:520px;justify-self:center;width:100%}}
@media (max-width:520px){
  .yard-photo{width:100%;aspect-ratio:4/3}
  .report-visual .report{grid-area:2/1;margin:-70px auto 0;width:92%}
}

/* buy buttons */
.buy-row{display:flex;flex-wrap:wrap;gap:12px}
.buy-alt{margin:0;text-align:center}
.form-head{display:grid;gap:6px}
.form-head h3{margin:0}
.form-head .fine{margin:0}

/* welcome page */
.welcome .wrap{max-width:720px;display:grid;gap:20px}
.welcome-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:32px;display:grid;gap:16px}
.welcome-card h1{margin:0}
.next{margin:0;padding-left:22px;display:grid;gap:12px}
.welcome-help{text-align:center}
[hidden]{display:none!important}
.plan ul{align-content:start}