/* walkintubwithshower.com guide pages: large type, plain layout, high contrast */
:root{
  --ink:#0f172a; --muted:#334155; --line:#cbd5e1; --soft:#eef6fb; --card:#ffffff; --page:#f6f9fb;
  --brand:#0f4e73; --brand2:#1a6d96; --brand-tint:#e0f2fe;
  --cta:#ff9564; --cta-ink:#260d06; --ok:#166534; --ok-bg:#dcfce7; --warn:#92400e; --warn-bg:#fef3c7; --no:#991b1b; --no-bg:#fee2e2;
  --r:16px; --shadow:0 6px 20px rgba(15,23,42,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--page);color:var(--ink);font-family:'DM Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;font-size:1.1875rem;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-underline-offset:3px}
a:hover{color:var(--brand2)}
:focus-visible{outline:3px solid #f59e0b;outline-offset:2px}
.skip{position:absolute;left:-9999px;top:0;background:#fff;color:var(--ink);padding:.6rem 1rem;z-index:999}
.skip:focus{left:8px;top:8px}
.ico{width:1.15em;height:1.15em;flex:0 0 auto;vertical-align:-.18em}

/* header */
.sh{position:sticky;top:0;z-index:100;background:#fff;border-bottom:2px solid var(--brand-tint);box-shadow:0 2px 12px rgba(15,23,42,.07)}
.sh-in{max-width:1260px;margin:0 auto;padding:.55rem 1rem;display:flex;align-items:center;gap:1rem;justify-content:space-between}
.sh-logo{flex:0 1 280px;min-width:0;display:block}
.sh-logo img{width:280px;max-width:100%;height:auto}
.sh-nav{display:flex;align-items:center;gap:.15rem}
.sh-nav>a,.sh-nav summary{font-size:1rem;font-weight:700;color:var(--ink);text-decoration:none;padding:.5rem .7rem;border-radius:999px;cursor:pointer;white-space:nowrap}
.sh-nav>a:hover,.sh-nav summary:hover,.sh-nav>a[aria-current=page]{background:var(--brand-tint);color:var(--brand)}
.sh-nav details{position:relative}
.sh-nav summary{list-style:none;display:inline-flex;align-items:center;gap:.3rem}
.sh-nav summary::-webkit-details-marker{display:none}
.sh-drop{position:absolute;right:0;top:calc(100% + .4rem);background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:.5rem;min-width:300px}
.sh-drop a{display:block;padding:.55rem .75rem;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:600;font-size:1rem}
.sh-drop a:hover{background:var(--brand-tint)}
.sh-right{display:flex;align-items:center;gap:.5rem;flex:0 0 auto}
.sh-phone{display:inline-flex;align-items:center;gap:.45rem;font-weight:800;color:var(--brand);text-decoration:none;border:2px solid var(--brand-tint);border-radius:999px;padding:.45rem .9rem;font-size:1.05rem;white-space:nowrap}
.sh-phone:hover{background:var(--brand-tint)}
.sh-burger{display:none;background:#fff;border:2px solid var(--line);border-radius:12px;padding:.5rem;cursor:pointer;color:var(--ink);align-items:center;gap:.35rem;font:700 1rem inherit;font-family:inherit}
.sh-bbb{border-top:1px solid var(--brand-tint)}
.sh-bbb-in{max-width:1260px;margin:0 auto;display:flex;align-items:center;justify-content:center;gap:14px;padding:6px 1rem;font-size:.95rem;font-weight:600}
.bbb-seal{display:inline-block;line-height:0;flex:0 0 auto}
.bbb-seal img{width:100%;height:auto;display:block}
.sh-bbb .bbb-seal{width:150px}
.mnav{display:none;border-top:1px solid var(--line);background:#fff;padding:.5rem 1rem 1rem}
.mnav.open{display:block}
.mnav a{display:block;padding:.8rem .25rem;border-bottom:1px solid #e2e8f0;color:var(--ink);font-weight:700;text-decoration:none;font-size:1.1rem}
.mnav a:last-child{border-bottom:0}
@media (max-width:1180px){.sh-nav{display:none}.sh-burger{display:inline-flex}}
@media (max-width:560px){.sh-logo{flex-basis:200px}.sh-phone .ph-txt{display:none}.sh-phone{padding:.5rem .65rem}.sh-bbb-in{font-size:.85rem;gap:10px}.sh-bbb .bbb-seal{width:120px}}

/* layout */
.wrap{max-width:1100px;margin:0 auto;padding:0 1rem}
.crumbs{font-size:.95rem;color:var(--muted);padding:1rem 0 0}
.crumbs a{color:var(--muted)}
.hero{padding:1.25rem 0 1.5rem}
.kicker{display:inline-block;font-size:.85rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);background:var(--brand-tint);border-radius:999px;padding:.25rem .8rem;margin-bottom:.6rem}
h1{font-family:'Playfair Display',Georgia,serif;font-size:clamp(2rem,5.5vw,3rem);line-height:1.15;margin:.2rem 0 .8rem;color:var(--ink)}
h2{font-family:'Playfair Display',Georgia,serif;font-size:clamp(1.55rem,4vw,2.05rem);line-height:1.2;margin:2.4rem 0 .8rem;color:var(--ink)}
h3{font-size:1.3rem;line-height:1.3;margin:1.6rem 0 .5rem;color:var(--ink)}
p,li{max-width:70ch}
p{margin:0 0 1rem}
ul,ol{padding-left:1.4rem;margin:0 0 1.1rem}
li{margin:.35rem 0}
.answer{background:#fff;border-left:6px solid var(--brand);border-radius:0 var(--r) var(--r) 0;padding:1rem 1.2rem;box-shadow:var(--shadow);font-size:1.2rem;margin:0 0 1.2rem}
.answer p:last-child{margin:0}
.lead{font-size:1.25rem;color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-weight:800;font-size:1.1rem;padding:.85rem 1.4rem;border-radius:999px;text-decoration:none;border:0;cursor:pointer;font-family:inherit;min-height:52px}
.btn-cta{background:var(--cta);color:var(--cta-ink);box-shadow:0 8px 20px rgba(255,149,100,.35)}
.btn-cta:hover{color:var(--cta-ink);filter:brightness(.96)}
.btn-ghost{background:#fff;color:var(--brand);border:2px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-tint)}
.btn-row{display:flex;flex-wrap:wrap;gap:.7rem;margin:1rem 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.2rem 1.25rem;box-shadow:var(--shadow)}
.card h3{margin-top:0}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
@media (max-width:820px){.grid2,.grid3{grid-template-columns:1fr}}
.iconrow{display:flex;gap:.75rem;align-items:flex-start}
.iconbub{width:46px;height:46px;border-radius:12px;background:var(--brand-tint);color:var(--brand);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.iconbub .ico{width:26px;height:26px}
.note{background:var(--warn-bg);color:#451a03;border-radius:12px;padding:.9rem 1.1rem;margin:1rem 0}
.note strong{color:#451a03}
.tick{list-style:none;padding-left:0}
.tick li{position:relative;padding-left:2rem}
.tick li::before{content:"";position:absolute;left:0;top:.3em;width:1.25rem;height:1.25rem;border-radius:50%;background:var(--ok-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23166534' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/70% no-repeat}

/* tables */
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin:1rem 0 1.4rem}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:1.02rem}
th,td{text-align:left;vertical-align:top;padding:.75rem .85rem;border-bottom:1px solid #e2e8f0}
thead th{background:var(--brand);color:#fff;font-weight:800}
tbody th{background:var(--soft);font-weight:800;color:var(--ink)}
tbody tr:last-child td,tbody tr:last-child th{border-bottom:0}

/* tool */
.tool{background:#fff;border:2px solid var(--brand-tint);border-radius:20px;padding:1.25rem;box-shadow:var(--shadow);margin:1rem 0 1.5rem}
.tool fieldset{border:0;margin:0 0 1.2rem;padding:0}
.tool legend{font-weight:800;font-size:1.2rem;margin-bottom:.5rem;padding:0;color:var(--ink)}
.tool .hint{font-size:1rem;color:var(--muted);margin:-.2rem 0 .6rem}
.opts{display:flex;flex-wrap:wrap;gap:.5rem}
.opt{position:relative}
.opt input{position:absolute;opacity:0;width:1px;height:1px}
.opt span{display:inline-flex;align-items:center;min-height:52px;padding:.6rem 1rem;border:2px solid var(--line);border-radius:12px;background:#fff;font-weight:700;cursor:pointer;color:var(--ink)}
.opt input:checked+span{border-color:var(--brand);background:var(--brand-tint);color:var(--brand)}
.opt input:focus-visible+span{outline:3px solid #f59e0b;outline-offset:2px}
.field{display:flex;flex-direction:column;gap:.3rem;margin-bottom:1rem}
.field label{font-weight:800}
.field input,.field select{font:inherit;font-size:1.15rem;padding:.65rem .8rem;border:2px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);min-height:52px;width:100%;max-width:280px}
.field input:focus,.field select:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px rgba(26,109,150,.2)}
.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 1.25rem}
@media (max-width:640px){.fields{grid-template-columns:1fr}}
.result{margin-top:1rem;border-radius:16px;padding:1.1rem 1.2rem;background:var(--soft);border:2px solid var(--brand-tint)}
.result[hidden]{display:none}
.result h3{margin-top:0;font-family:'Playfair Display',Georgia,serif;font-size:1.5rem}
.verdict{display:inline-block;font-weight:800;border-radius:999px;padding:.2rem .8rem;font-size:1rem;margin-bottom:.5rem}
.v-ok{background:var(--ok-bg);color:var(--ok)}
.v-warn{background:var(--warn-bg);color:var(--warn)}
.v-no{background:var(--no-bg);color:var(--no)}
.checks{list-style:none;padding:0;margin:.5rem 0 1rem}
.checks li{display:flex;gap:.6rem;align-items:flex-start;padding:.55rem 0;border-bottom:1px solid #dbe5ee;max-width:none}
.checks li:last-child{border-bottom:0}
.checks .tag{flex:0 0 auto;font-size:.85rem;font-weight:800;border-radius:8px;padding:.15rem .5rem;margin-top:.15rem}
.err{color:var(--no);font-weight:700}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin:.6rem 0;box-shadow:0 2px 8px rgba(15,23,42,.05)}
.faq summary{cursor:pointer;font-weight:800;padding:1rem 1.1rem;list-style:none;display:flex;justify-content:space-between;gap:1rem;font-size:1.12rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;line-height:1;color:var(--brand);flex:0 0 auto}
.faq details[open] summary::after{content:"\2212"}
.faq details>div{padding:0 1.1rem 1rem}
.faq details>div p:last-child{margin:0}

/* cta band */
.ctaband{background:var(--brand);color:#fff;border-radius:20px;padding:1.5rem 1.4rem;margin:2.5rem 0 1rem}
.ctaband h2{color:#fff;margin-top:0}
.ctaband p{color:#e2eef6}
.ctaband a:not(.btn){color:#fff}
.ctaband .btn-ghost{background:transparent;color:#fff;border-color:#fff}
.ctaband .btn-ghost:hover{background:rgba(255,255,255,.12)}
.trust{display:flex;flex-wrap:wrap;gap:14px 20px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1rem 1.1rem;margin:1.2rem 0}
.trust .bbb-seal{width:170px}
.trust p{margin:0;flex:1 1 240px;font-size:1.02rem}
.related{margin:2rem 0}
.related ul{list-style:none;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem}
.related li{max-width:none;margin:0}
.related a{display:flex;gap:.5rem;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:.8rem 1rem;font-weight:700;text-decoration:none;color:var(--ink)}
.related a:hover{border-color:var(--brand);color:var(--brand)}
@media (max-width:640px){.related ul{grid-template-columns:1fr}}
.src{font-size:1rem;color:var(--muted)}
.src li{max-width:none;overflow-wrap:anywhere}
figure{margin:1.2rem 0}
figcaption{font-size:1rem;color:var(--muted);margin-top:.4rem}
.diagram{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:.8rem}

/* footer */
.sf{background:#0b1220;color:#cbd5e1;margin-top:3rem;padding:2.5rem 1rem 0}
.sf-in{max-width:1160px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem;padding-bottom:1.75rem}
.sf h2{font-family:inherit;font-size:.95rem;letter-spacing:.1em;text-transform:uppercase;color:#fff;margin:0 0 .7rem}
.sf a{color:#e2e8f0}
.sf a:hover{color:#7dd3fc}
.sf-links a{display:block;padding:.3rem 0;font-size:1rem;text-decoration:none}
.sf-brand{display:flex;flex-wrap:wrap;align-items:center;gap:18px 26px;margin-bottom:1rem}
.sf-brand .sf-logo{width:260px;max-width:100%}
.sf-bbb{display:inline-flex;flex-direction:column;align-items:center;gap:6px;background:#fff;border-radius:12px;padding:12px 12px 9px}
.sf-bbb .bbb-seal{width:200px}
.sf-bbb b{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:#123a5c}
.sf p{font-size:1rem;margin:0 0 .6rem;max-width:none}
.sf-bot{max-width:1160px;margin:0 auto;border-top:1px solid rgba(255,255,255,.12);padding:1rem 0 1.5rem;text-align:center;font-size:.9rem;color:#94a3b8}
@media (max-width:860px){.sf-in{grid-template-columns:1fr}}

/* sticky mobile CTA */
.mcta{display:none}
@media (max-width:640px){
  .mcta{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:90;gap:.5rem;padding:.55rem .75rem calc(.55rem + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 14px rgba(15,23,42,.08)}
  .mcta .btn{flex:1;font-size:1.02rem;padding:.7rem .6rem;min-height:50px}
  body{padding-bottom:76px}
}
@media print{.sh,.sf,.mcta,.ctaband{display:none}}
[hidden]{display:none!important}

/* ---- 2026-10 additions: homepage, quote form, charts, stats ---- */
.home-hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:2rem;align-items:center;padding:1.5rem 0 1rem}
@media (max-width:900px){.home-hero{grid-template-columns:1fr;gap:1rem}}
.home-hero .lead{margin-bottom:1rem}
.anatomy{background:#fff;border:1px solid var(--line);border-radius:20px;padding:.9rem;box-shadow:var(--shadow);margin:0}
.anatomy svg{width:100%;height:auto;display:block}
.anatomy figcaption{margin-top:.5rem}
.anatomy text{font-family:'DM Sans',system-ui,sans-serif}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.8rem;margin:1rem 0 1.4rem;padding:0;list-style:none}
.stats li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:.9rem 1rem;margin:0;max-width:none;font-size:1rem;color:var(--muted)}
.stats b{display:block;font-family:'Playfair Display',Georgia,serif;font-size:1.6rem;line-height:1.15;color:var(--brand);margin-bottom:.2rem}
@media (max-width:900px){.stats{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:420px){.stats{grid-template-columns:1fr}}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.85rem;list-style:none;padding:0;margin:1rem 0}
.cards li{margin:0;max-width:none}
.cards a{display:flex;gap:.85rem;align-items:flex-start;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1rem 1.1rem;color:var(--ink);text-decoration:none;box-shadow:0 2px 8px rgba(15,23,42,.05)}
.cards a:hover{border-color:var(--brand)}
.cards a strong{display:block;color:var(--brand);font-size:1.12rem;margin-bottom:.15rem}
.cards a span.d{font-size:1rem;color:var(--muted);line-height:1.5}
.cards .tool-card{border:2px solid var(--brand);background:#f4fbff}
@media (max-width:760px){.cards{grid-template-columns:1fr}}
.steps{counter-reset:s;list-style:none;padding:0}
.steps li{counter-increment:s;position:relative;padding-left:2.9rem;margin:.9rem 0}
.steps li::before{content:counter(s);position:absolute;left:0;top:.05rem;width:2.1rem;height:2.1rem;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:1.05rem}
/* quote form */
.quote{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1.5rem;background:var(--soft);border:2px solid var(--brand-tint);border-radius:20px;padding:1.4rem;margin:2.5rem 0 1rem;scroll-margin-top:110px}
@media (max-width:900px){.quote{grid-template-columns:1fr;padding:1.1rem}}
.quote h2{margin-top:0}
.qf{background:#fff;border:1px solid var(--line);border-radius:16px;padding:1.1rem}
.qf .field input,.qf .field select,.qf .field textarea{max-width:none}
.qf .field textarea{font:inherit;font-size:1.1rem;padding:.65rem .8rem;border:2px solid var(--line);border-radius:12px;min-height:110px;width:100%;resize:vertical;color:var(--ink)}
.qf .field textarea:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px rgba(26,109,150,.2)}
.qf .opt-l{font-weight:500;color:var(--muted)}
.qf input[aria-invalid=true]{border-color:var(--no);background:#fff7f7}
.qf .btn{width:100%}
.hp{position:absolute!important;left:-5000px!important;width:1px;height:1px;overflow:hidden}
.qstatus{margin:.8rem 0 0;font-weight:700;border-radius:12px}
.qstatus:empty{display:none}
.qstatus.ok{background:var(--ok-bg);color:var(--ok);padding:.8rem 1rem}
.qstatus.bad{background:var(--no-bg);color:var(--no);padding:.8rem 1rem}
.qstatus.warn{background:var(--warn-bg);color:#451a03;padding:.8rem 1rem}
.qstatus a{color:inherit}
.small{font-size:1rem;color:var(--muted)}
/* charts */
.chart{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1rem;margin:1.2rem 0}
.chart svg{width:100%;height:auto;display:block}
.chart text{font-family:'DM Sans',system-ui,sans-serif}
.chart figcaption{color:var(--ink);font-weight:700;margin:0 0 .6rem}
.chart .src{margin:.6rem 0 0}
details.data{margin-top:.6rem}
details.data summary{cursor:pointer;font-weight:700;color:var(--brand)}
.calc-out b{color:var(--ink)}
.kv{list-style:none;padding:0;margin:.4rem 0 1rem}
.kv li{display:flex;justify-content:space-between;gap:1rem;padding:.5rem 0;border-bottom:1px solid #dbe5ee;max-width:none}
.kv li:last-child{border-bottom:0}
.kv span:last-child{font-weight:800;text-align:right}
.sh-cta{background:var(--cta);color:var(--cta-ink)!important}
.sh-cta:hover{background:#ffa77d!important}
.sh-nav summary.on{background:var(--brand-tint);color:var(--brand)}