/* Mombasa Kidney Care: shared design system */
/* Monochrome system modelled on opentrain.ai: near-black on off-white, grey borders, Geist.
   Yellow #f5b93a is the one brand accent, used as small hints. Red and amber are kept only for urgent and warning messages. */
:root{
  --bg:#fcfcfc; --surface:#ffffff; --surface-2:#f5f5f5; --mint:#f5f5f5;
  --ink:#121212; --ink-2:#3f3f3f; --muted:#555555; --line:#e2e2e2;
  --brand:#121212; --brand-2:#555555; --green:#121212; --brand-ink:#fcfcfc; --brand-soft:#ededed;
  --band:#0a0a0a; --band-ink:#fcfcfc; --band-muted:#a3a3a3;
  --yellow:#f5b93a; --yellow-ink:#121212; --yellow-soft:#fff5dc;
  --accent:#dc252a; --accent-soft:#fdeaea;
  --warn:#8a5a00; --warn-soft:#fff4d6;
  --radius:10px; --radius-sm:6px;
  --shadow:0 1px 2px rgba(0,0,0,.04);
  --maxw:1180px; --readw:720px;
  --font:"Geist",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-head:"Geist",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#121212; --surface:#050505; --surface-2:#1a1a1a; --mint:#1a1a1a;
    --ink:#fcfcfc; --ink-2:#cfcfcf; --muted:#8a8a8a; --line:#333333;
    --brand:#fcfcfc; --brand-2:#9a9a9a; --green:#3a3a3a; --brand-ink:#121212; --brand-soft:#262626;
    --band:#000000; --band-ink:#fcfcfc; --band-muted:#a3a3a3;
    --yellow:#f5b93a; --yellow-ink:#121212; --yellow-soft:#2e2712;
    --accent:#f06a6e; --accent-soft:#3a1a1c;
    --warn:#f0c46a; --warn-soft:#33290f;
    --shadow:none;
  }
}
:root[data-theme="dark"]{
  --bg:#121212; --surface:#050505; --surface-2:#1a1a1a; --mint:#1a1a1a;
  --ink:#fcfcfc; --ink-2:#cfcfcf; --muted:#8a8a8a; --line:#333333;
  --brand:#fcfcfc; --brand-2:#9a9a9a; --green:#3a3a3a; --brand-ink:#121212; --brand-soft:#262626;
  --band:#000000; --band-ink:#fcfcfc; --band-muted:#a3a3a3;
  --yellow:#f5b93a; --yellow-ink:#121212; --yellow-soft:#2e2712;
  --accent:#f06a6e; --accent-soft:#3a1a1c;
  --warn:#f0c46a; --warn-soft:#33290f;
  --shadow:none;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 var(--font)}
img{max-width:100%;height:auto}
a{color:var(--brand)}
a:hover{text-decoration-thickness:2px}
h1,h2,h3{font-family:var(--font-head);font-weight:600;line-height:1.15;letter-spacing:-.025em;color:var(--ink);margin:1.6em 0 .5em}
h1{font-size:clamp(2rem,4.5vw,3rem);margin-top:.3em}
h2{font-size:clamp(1.45rem,2.8vw,1.9rem)}
h3{font-size:1.2rem}
p,ul,ol{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.read{max-width:var(--readw)}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:8px;background:var(--surface);padding:8px 12px;z-index:99}

/* Header */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-header .wrap{display:flex;align-items:center;gap:20px;min-height:64px;max-width:1320px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);text-decoration:none;white-space:nowrap}
.logo svg{flex:none}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav a{color:var(--ink-2);text-decoration:none;font-size:.93rem;padding:8px 10px;white-space:nowrap;border-radius:var(--radius-sm)}
.nav a:hover,.nav a[aria-current="page"]{background:var(--surface-2);color:var(--ink)}
.nav a[aria-current="page"]:not(.btn){box-shadow:inset 0 -2px 0 var(--yellow)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:var(--radius-sm);padding:8px 12px;color:var(--ink);font:inherit}
@media (max-width:1300px){
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:64px;background:var(--surface);flex-direction:column;align-items:stretch;padding:8px 16px 16px;border-bottom:1px solid var(--line);margin:0}
  .nav.open{display:flex}
  .nav a{padding:12px}
  .btn-call{order:1;margin-left:auto}
  .nav-toggle{order:2;margin-left:0}
}
.btn.btn-call{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;flex:none;background:var(--yellow);border-color:var(--yellow);color:var(--yellow-ink);border-radius:999px;padding:9px 16px 9px 20px;font-weight:600}
.btn.btn-call:hover{opacity:1;filter:brightness(.95)}
.btn-call .call-label{white-space:nowrap}
.btn-call .call-ic{display:none}
.btn-call .call-arrow{transition:transform .15s}
.btn-call:hover .call-arrow{transform:translate(2px,-2px)}
@media (min-width:1301px) and (max-width:1519px){
  .btn.btn-call{padding:9px 11px}
  .btn-call .call-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .btn-call .call-ic{display:block}
  .btn-call .call-arrow{display:none}
}
@media (max-width:480px){
  .site-header .wrap{gap:8px}
  .logo{font-size:.95rem;gap:8px}
  .logo{white-space:normal;line-height:1.15;min-width:0}
  .nav-toggle{padding:8px 10px}
  .btn.btn-call{padding:9px 11px}
  .btn-call .call-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .btn-call .call-ic{display:block}
  .btn-call .call-arrow{display:none}
}

/* Buttons */
.btn{display:inline-block;background:var(--brand);color:var(--brand-ink);text-decoration:none;font-weight:600;padding:11px 20px;border-radius:var(--radius);border:1px solid var(--brand);font-size:.98rem;cursor:pointer}
.btn:hover{opacity:.88}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--surface-2);opacity:1}
.btn-sm{padding:8px 14px;font-size:.9rem}
.nav .btn{color:var(--brand-ink);margin-left:6px}
.nav .btn:hover{background:var(--brand);color:var(--brand-ink)}

/* Sections */
.hero{padding:64px 0 40px}
.hero p.lead{font-size:1.2rem;color:var(--ink-2);max-width:640px}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.section{padding:44px 0}
.section h2{margin-top:0}
.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.74rem;font-weight:500;font-family:"Geist Mono",ui-monospace,monospace;color:var(--brand-2);margin:0 0 10px}
.eyebrow::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--yellow);margin-right:8px;vertical-align:.08em}
.muted{color:var(--muted)}
::selection{background:var(--yellow);color:var(--yellow-ink)}

/* Cards */
/* Card grids pick their column count from how many cards they hold, so rows stay even:
   2 cards: 2 columns; 4, 7 or 8 cards: 4 columns; everything else: 3 columns */
.grid{display:grid;gap:20px;grid-template-columns:repeat(3,minmax(0,1fr))}
.grid:has(> :nth-child(2):last-child){grid-template-columns:repeat(2,minmax(0,1fr))}
.grid:has(> :nth-child(4):last-child),.grid:has(> :nth-child(7):last-child),.grid:has(> :nth-child(8):last-child){grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.grid:has(> :nth-child(4):last-child) .card,.grid:has(> :nth-child(7):last-child) .card,.grid:has(> :nth-child(8):last-child) .card{padding:16px}
.grid:has(> :nth-child(4):last-child) .card h3,.grid:has(> :nth-child(7):last-child) .card h3,.grid:has(> :nth-child(8):last-child) .card h3{font-size:1rem}
@media (max-width:1100px){.article .grid:has(> :nth-child(4):last-child),.article .grid:has(> :nth-child(7):last-child),.article .grid:has(> :nth-child(8):last-child){grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:900px){.grid,.grid:has(> :nth-child(4):last-child),.grid:has(> :nth-child(7):last-child),.grid:has(> :nth-child(8):last-child){grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.grid,.grid:has(> :nth-child(2):last-child),.grid:has(> :nth-child(4):last-child),.grid:has(> :nth-child(7):last-child),.grid:has(> :nth-child(8):last-child){grid-template-columns:1fr}}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-decoration:none;color:var(--ink);box-shadow:var(--shadow)}
a.card:hover{border-color:var(--yellow);box-shadow:0 0 0 1px var(--yellow)}
.card h3{margin:0 0 6px;font-size:1.1rem}
.card p{margin:0;color:var(--ink-2);font-size:.95rem}
.grid > .card{display:flex;flex-direction:column}
.card .go{display:inline-block;margin-top:auto;padding-top:12px;color:var(--brand);font-weight:600;font-size:.9rem}
.card-problem{padding:24px}
.card-problem .ico{font-size:1.6rem;display:block;margin-bottom:8px}

/* Breadcrumbs */
.crumbs{font-size:.85rem;color:var(--muted);padding-top:20px}
.crumbs a{color:var(--muted)}
.crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li::before{content:"/";margin-right:6px}

/* Page header band (all inner pages) */
.page-head{background:var(--mint);border-bottom:1px solid var(--line);padding:48px 0 44px}
.page-head .crumbs{padding:22px 0 26px}
.page-head .eyebrow{margin-bottom:10px}
.page-head h1{margin:0 0 14px;max-width:880px}
.page-head .lead{font-size:1.15rem;line-height:1.6;color:var(--ink-2);max-width:760px;margin:0}
.page-head + .wrap > :first-child:not(.article-layout):not(.section):not(.hero){margin-top:40px}
.page-head + .wrap > .hero:first-child{padding-top:40px !important;padding-bottom:0}
.article > .review:first-child{margin-top:0}
.lead{font-size:1.1rem;color:var(--ink-2)}
@media (max-width:600px){.page-head{padding-top:32px;padding-bottom:32px}.page-head .lead{font-size:1.05rem}}

/* Article */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:56px;padding:40px 0 48px}
@media (max-width:900px){.article-layout{grid-template-columns:1fr}}
.article h2{scroll-margin-top:80px}
.aside-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:16px;font-size:.93rem}
.aside-box h3{margin:0 0 8px;font-size:1rem;font-family:var(--font)}
.aside-box ul{padding-left:18px;margin:0}
.sticky{position:sticky;top:84px}
.review{display:flex;flex-wrap:wrap;gap:6px 20px;font-size:.86rem;color:var(--muted);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:10px 0;margin:8px 0 28px}
.review strong{color:var(--ink-2);font-weight:600}

/* Callouts */
.note{background:var(--surface-2);border-left:4px solid var(--brand);border-radius:var(--radius-sm);padding:16px 18px;margin:24px 0}
.note-warn{background:var(--warn-soft);border-left-color:var(--warn)}
.note-urgent{background:var(--accent-soft);border-left-color:var(--accent)}
.note p:last-child,.note ul:last-child{margin-bottom:0}
.note h3{margin:0 0 6px;font-size:1.02rem;font-family:var(--font)}

/* Three-level CTA */
.cta-trio{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin:36px 0}
.cta-trio a{display:block;padding:16px;border-radius:var(--radius);text-decoration:none;border:1px solid var(--line);background:var(--surface);color:var(--ink)}
.cta-trio a small{display:block;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.06em}
.cta-trio a strong{display:block;margin-top:4px}
.cta-trio a.high{background:var(--band);border-color:var(--band);color:var(--band-ink)}
.cta-trio a.high small{color:inherit;opacity:.8}
.cta-band{background:var(--band);color:var(--band-ink);border-radius:var(--radius);padding:32px;margin:40px 0}
.cta-band h2{color:inherit;margin:0 0 8px}
.cta-band p{opacity:.92}
.cta-band .btn{background:var(--yellow);color:var(--yellow-ink);border-color:var(--yellow)}

/* Sources, disclaimer */
.sources{font-size:.9rem;color:var(--ink-2)}
.sources ol{padding-left:20px}
.disclaimer{font-size:.88rem;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px;margin-top:32px}

/* Tables */
.table-wrap{overflow-x:auto;margin:20px 0}
table{border-collapse:collapse;width:100%;font-size:.94rem;background:var(--surface)}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--surface-2)}

/* Forms */
.form{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
fieldset{border:0;padding:0;margin:0 0 24px}
legend{font-weight:700;margin-bottom:10px;font-size:1.05rem}
.choices{display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.choice{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px 12px;cursor:pointer;background:var(--bg)}
.choice:has(input:checked){border-color:var(--brand);background:var(--brand-soft)}
label.field{display:block;font-weight:600;margin-bottom:6px}
input[type=text],input[type=tel],input[type=email],textarea,select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:var(--radius-sm);font:inherit;background:var(--bg);color:var(--ink)}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.93rem}
.consent input{margin-top:5px}
.form-msg{margin-top:16px;padding:14px;border-radius:var(--radius-sm);display:none}
.form-msg.show{display:block;background:var(--brand-soft)}

/* Pathway */
.path-step{display:none}.path-step.active{display:block}

/* Footer */
.site-footer{border-top:4px solid var(--yellow);background:var(--band);color:var(--band-muted);margin-top:64px;padding:48px 0 24px;font-size:.92rem}
.footer-grid{display:grid;gap:28px;grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
.site-footer h4{margin:0 0 12px;color:var(--band-ink);font-size:.95rem;font-family:var(--font-head);font-weight:600}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:8px}
.site-footer a{color:var(--band-muted);text-decoration:none}
.site-footer a:hover{color:var(--yellow);text-decoration:underline}
.footer-legal{border-top:1px solid rgba(255,255,255,.14);margin-top:32px;padding-top:18px;font-size:.84rem;color:var(--band-muted)}
.emergency{background:rgba(255,255,255,.08);color:var(--band-ink);border-left:4px solid var(--accent);border-radius:var(--radius-sm);padding:12px 14px;margin-bottom:28px;font-size:.9rem}

/* Review strip inside the header band */
.page-head .review{border:0;margin:20px 0 0;padding:0;font-size:.84rem}