/* Carter Chiropractic — light, airy riverside palette. Layout: wide content column, alternating text/illustration bands, phone always in reach. */
:root{
  --bg:#f7faf9; --surface:#ffffff; --tint:#e3f0ef; --sand:#f6ecdb;
  --ink:#14262b; --muted:#4d6268; --line:#d3e2df;
  --river:#1f6b70; --river-deep:#174a4e; --sun:#e2a64a; --sun-ink:#8a5a12;
  --flag:#a2412b; --flag-bg:#fbeee9;
  --onriver:#ffffff;
  --display:"Young Serif", Georgia, "Times New Roman", serif;
  --body:"Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --radius:1.25rem;
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
[id]{scroll-margin-top:5.5rem}
a,button,summary,label{-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:1.0625rem;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:var(--river)}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-family:var(--display);font-weight:400;line-height:1.15;text-wrap:balance;margin:0}
h1{font-size:clamp(2.3rem,5vw,3.8rem)}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem)}
h3{font-size:1.3rem}
p{margin:0}
.wrap{max-width:74rem;margin:0 auto;padding-inline:1.25rem}
.narrow{max-width:46rem}
.label{display:block;font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--river)}
.lede{font-size:1.2rem;color:var(--muted);max-width:38rem}
.muted{color:var(--muted)}
.stack{display:flex;flex-direction:column;gap:1rem}
.num{font-variant-numeric:tabular-nums;white-space:nowrap}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:0;cursor:pointer;font:600 1rem var(--body);padding:.8rem 1.3rem;border-radius:999px;text-decoration:none;background:var(--river);color:var(--onriver);min-height:44px}
.btn:hover{background:var(--river-deep)}
.btn.ghost{background:transparent;color:var(--river);box-shadow:inset 0 0 0 2px var(--river)}
.btn.ghost:hover{background:var(--tint)}
.ctas{display:flex;flex-wrap:wrap;gap:.8rem;align-items:center}
.textlink{font-weight:600;text-decoration:none;display:inline-flex;gap:.4rem;align-items:center}
.textlink:hover{text-decoration:underline}
.textlink::after{content:"→"}

/* header */
.topline{background:var(--river);color:var(--onriver);font-size:.88rem}
.topline .wrap{display:flex;justify-content:space-between;gap:1rem;padding-block:.45rem;flex-wrap:wrap}
.topline a{color:var(--onriver);font-weight:600;text-decoration:none}
header.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:.75rem}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--ink)}
.brand .txt{display:flex;flex-direction:column;line-height:1.1}
.brand b{font-family:var(--display);font-weight:400;font-size:1.35rem}
.brand small{font-size:.78rem;color:var(--muted)}
.mark{width:2.7rem;height:2.7rem;flex:none}
.seg{fill:var(--river)} .seg.hot{fill:var(--sun)}
nav.main{display:flex;gap:1.5rem;align-items:center}
nav.main a.link{color:var(--ink);text-decoration:none;font-size:.97rem;font-weight:500;padding-block:.3rem;border-bottom:2px solid transparent}
nav.main a.link:hover{color:var(--river)}
nav.main a.link[aria-current="page"]{color:var(--river);border-bottom-color:var(--sun)}
.menu-btn{display:none;background:transparent;border:1px solid var(--line);border-radius:999px;padding:.55rem 1rem;font:600 .95rem var(--body);color:var(--ink);cursor:pointer;min-height:44px}
@media (max-width:900px){
  .menu-btn{display:inline-flex}
  nav.main{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:var(--surface);border-bottom:1px solid var(--line);padding:.5rem 1.25rem 1rem}
  nav.main.open{display:flex}
  nav.main a.link{padding:.8rem 0;border-bottom:1px solid var(--line)}
  nav.main a.link[aria-current="page"]{border-bottom-color:var(--line)}
  nav.main .btn{margin-top:.8rem}
  .brand{gap:.55rem;min-width:0}
  .brand .txt{min-width:0}
  .brand small{font-size:.7rem;white-space:nowrap}
  .brand b{font-size:1.2rem;white-space:nowrap}
  .mark{width:2.3rem;height:2.3rem}
  .menu-btn{padding:.5rem .85rem;flex:none}
}

/* hero */
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:3.5rem;align-items:center;padding-block:4rem 4.5rem}
.hero .stack{gap:1.4rem}
.hero h1 em{font-style:normal;color:var(--river)}
.art{border-radius:var(--radius);overflow:hidden;background:var(--tint);min-width:0}
.art img{width:100%}
.caption{font-size:.82rem;color:var(--muted);margin-top:.6rem}
@media (max-width:900px){.hero{grid-template-columns:1fr;gap:2rem;padding-block:2.5rem 3rem}}

.trust{border-block:1px solid var(--line);background:var(--surface)}
.trust ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.trust li{padding:1.3rem 1.25rem;display:flex;flex-direction:column;gap:.15rem;border-left:1px solid var(--line)}
.trust li:first-child{border-left:0;padding-left:0}
.trust b{font-family:var(--display);font-weight:400;font-size:1.15rem}
.trust span{font-size:.92rem;color:var(--muted)}
@media (max-width:900px){.trust ul{grid-template-columns:1fr 1fr}.trust li:nth-child(3){border-left:0;padding-left:0}.trust li{border-top:1px solid var(--line)}.trust li:nth-child(-n+2){border-top:0}}
@media (max-width:520px){.trust ul{grid-template-columns:1fr}.trust li{border-left:0;padding-left:0;border-top:1px solid var(--line)}.trust li:first-child{border-top:0}}

/* sections */
.section{padding-block:5rem}
.section.tint{background:var(--tint)}
.section.sand{background:var(--sand)}
.section.surface{background:var(--surface);border-block:1px solid var(--line)}
.head{display:flex;flex-direction:column;gap:.8rem;margin-bottom:2.5rem;max-width:44rem}
.head p{color:var(--muted);font-size:1.1rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.split.flip > :first-child{order:2}
.split > *{min-width:0}
@media (max-width:900px){.split{grid-template-columns:1fr;gap:2rem}.split.flip > :first-child{order:0}.section{padding-block:3.5rem}}

/* spine regions */
.regions{list-style:none;margin:0;padding:0;display:grid}
.regions li{border-top:1px solid var(--line)}
.regions li:last-child{border-bottom:1px solid var(--line)}
.regions a{display:grid;grid-template-columns:5.5rem 1fr auto;gap:1rem;align-items:baseline;padding:1rem 0;text-decoration:none;color:var(--ink)}
.regions a:hover b{color:var(--river)}
.regions code{font:700 .82rem var(--body);color:var(--river);font-variant-numeric:tabular-nums}
.regions b{font-family:var(--display);font-weight:400;font-size:1.2rem;display:block}
.regions span.d{color:var(--muted);font-size:.95rem}
.regions .go{color:var(--river);font-weight:700}
.spine-art{max-width:24rem;margin-inline:auto;background:var(--surface);border-radius:var(--radius);padding:1rem;border:1px solid var(--line)}

/* condition cards */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;display:flex;flex-direction:column;gap:.6rem;text-decoration:none;color:var(--ink);transition:border-color .15s, transform .15s}
.card:hover{border-color:var(--river)}
@media (prefers-reduced-motion:no-preference){.card:hover{transform:translateY(-2px)}}
.card .tag{font:700 .75rem var(--body);letter-spacing:.1em;text-transform:uppercase;color:var(--sun-ink)}
.card p{color:var(--muted);font-size:.97rem}
.card .textlink{margin-top:auto;padding-top:.4rem;color:var(--river)}
@media (max-width:900px){.cards{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.cards{grid-template-columns:1fr}}

/* steps */
.steps{list-style:none;margin:0;padding:0;display:grid;gap:1.6rem;counter-reset:s}
.steps li{display:grid;grid-template-columns:2.6rem 1fr;gap:1rem;align-items:start}
.steps li::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:2.6rem;height:2.6rem;border-radius:50%;background:var(--surface);border:2px solid var(--river);color:var(--river);font-family:var(--display);font-size:1.1rem}
.section.surface .steps li::before{background:var(--tint)}
.steps h3{font-size:1.2rem;margin-bottom:.25rem}
.steps p{color:var(--muted)}

/* principles */
.principles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:2rem}
.principles div{display:flex;flex-direction:column;gap:.5rem;border-top:3px solid var(--river);padding-top:1.1rem}
.principles p{color:var(--muted);font-size:.97rem}
@media (max-width:900px){.principles{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.principles{grid-template-columns:1fr}}

/* portrait slot */
.portrait{aspect-ratio:4/5;max-width:100%;border-radius:var(--radius);background:var(--tint);border:2px dashed #a9c8c5;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;text-align:center;padding:2rem;color:var(--muted)}
.portrait svg{width:34%;height:auto}
.portrait b{color:var(--ink);font-weight:600}

/* local activities */
.chips{display:flex;flex-wrap:wrap;gap:.5rem;list-style:none;margin:0;padding:0}
.chips li{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:.4rem .9rem;font-size:.93rem}

/* faq */
.faq{max-width:50rem}
details{border-top:1px solid var(--line);padding:1.1rem 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:600;font-size:1.08rem;list-style:none;display:flex;justify-content:space-between;gap:1rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--river);font-size:1.5rem;line-height:1;flex:none}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin-top:.6rem;max-width:44rem}

/* CTA band */
.cta-band{background:var(--sand);border-radius:1.5rem;padding:3rem;display:grid;grid-template-columns:1.4fr 1fr;gap:2rem;align-items:center}
.cta-band .phone{font:700 clamp(1.6rem,3vw,2.2rem) var(--body);color:var(--river);letter-spacing:.01em;font-variant-numeric:tabular-nums}
.cta-band .right{display:flex;flex-direction:column;gap:.9rem;align-items:flex-start}
@media (max-width:800px){.cta-band{grid-template-columns:1fr;padding:2rem}}

/* page hero (inner pages) */
.page-hero{padding-block:3.5rem 3rem;border-bottom:1px solid var(--line);background:var(--surface)}
.page-hero .stack{gap:1rem;max-width:46rem}
.crumbs{font-size:.88rem;color:var(--muted)}
.crumbs a{color:var(--muted)}
.jump{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.4rem}
.jump a{border:1px solid var(--line);background:var(--bg);border-radius:999px;padding:.45rem 1rem;font-size:.93rem;text-decoration:none;color:var(--ink)}
.jump a:hover{border-color:var(--river);color:var(--river)}

/* condition article */
.condition{padding-block:4rem;border-bottom:1px solid var(--line);scroll-margin-top:6rem}
.condition .grid{display:grid;grid-template-columns:1fr 1.5fr;gap:3.5rem;align-items:start}
.condition .grid > *{min-width:0}
.condition .side{position:sticky;top:7rem;display:flex;flex-direction:column;gap:1rem}
.condition .region{font:700 .82rem var(--body);color:var(--sun-ink);letter-spacing:.06em}
.facts{display:grid;gap:1.6rem}
.facts h3{font-family:var(--body);font-weight:700;font-size:1rem;margin-bottom:.35rem}
.facts ul{margin:0;padding-left:1.2rem;color:var(--muted)}
.facts li{margin-bottom:.25rem}
.facts p{color:var(--muted)}
.flag{background:var(--flag-bg);border-radius:.9rem;padding:1.1rem 1.25rem}
.flag h3{color:var(--flag)}
.flag ul{color:var(--ink)}
@media (max-width:900px){.condition .grid{grid-template-columns:1fr;gap:1.5rem}.condition .side{position:static}}

/* checklists */
.checks{list-style:none;margin:0;padding:0;display:grid;gap:.7rem}
.checks li{display:grid;grid-template-columns:1.4rem 1fr;gap:.6rem}
.checks li::before{content:"";width:.45rem;height:.8rem;margin:.3rem 0 0 .35rem;border:solid var(--river);border-width:0 2.5px 2.5px 0;transform:rotate(45deg)}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:2rem;display:flex;flex-direction:column;gap:1rem}
.two{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
@media (max-width:760px){.two{grid-template-columns:1fr}}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:3rem;align-items:start}
.contact-grid > *{min-width:0}
.callbox{background:var(--tint);border:1px solid var(--line);border-radius:var(--radius);padding:2rem;display:flex;flex-direction:column;gap:1rem}
.callbox .phone{font:700 2rem var(--body);color:var(--river);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.copy{background:var(--surface);border:1px solid var(--line);color:var(--ink);font:500 .92rem var(--body);padding:.6rem 1rem;border-radius:999px;cursor:pointer;min-height:44px}
.info{display:grid;gap:1.1rem;margin-top:.5rem}
.info div{display:grid;gap:.15rem}
.info dt{font-weight:700;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;color:var(--river)}
.info dd{margin:0;color:var(--muted)}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr}}

/* form */
form{display:grid;gap:1.15rem}
.row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media (max-width:560px){.row{grid-template-columns:1fr}}
label.f{display:grid;gap:.35rem;font-weight:600;font-size:.93rem}
label.f .opt{font-weight:400;color:var(--muted)}
input,select,textarea{font:400 1rem var(--body);color:var(--ink);background:var(--surface);border:1px solid #bcd0cd;border-radius:.6rem;padding:.75rem .85rem;width:100%;min-height:44px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--river);outline-offset:1px}
textarea{min-height:6.5rem;resize:vertical}
fieldset{border:0;padding:0;margin:0;min-width:0}
legend{font-weight:600;font-size:.93rem;margin-bottom:.5rem;padding:0}
.pick{display:flex;flex-wrap:wrap;gap:.5rem}
.pick input{position:absolute;opacity:0;width:1px;height:1px}
.pick label{border:1px solid #bcd0cd;background:var(--surface);border-radius:999px;padding:.5rem .95rem;font-size:.93rem;cursor:pointer;min-height:40px;display:inline-flex;align-items:center}
.pick input:checked+label{background:var(--tint);border-color:var(--river);color:var(--river);font-weight:600}
.pick input:focus-visible+label{outline:3px solid var(--sun);outline-offset:2px}
.note{font-size:.86rem;color:var(--muted)}
.err{color:var(--flag);font-weight:600;font-size:.93rem}
.done{background:var(--tint);border-radius:var(--radius);padding:1.6rem;display:flex;flex-direction:column;gap:.5rem}

/* footer */
footer.site{background:var(--river-deep);color:#d7e7e5;padding-block:3.5rem 7rem;margin-top:0}
footer.site a{color:#ffffff;text-decoration:none}
footer.site a:hover{text-decoration:underline}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem}
.fgrid h3{font-family:var(--body);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:#f2cf93;margin-bottom:.8rem}
.fgrid ul{list-style:none;margin:0;padding:0;display:grid;gap:.45rem}
.fbrand{display:flex;gap:.8rem;align-items:center;margin-bottom:1rem}
.fbrand b{font-family:var(--display);font-weight:400;font-size:1.35rem;color:#ffffff}
footer.site .seg{fill:#ffffff} footer.site .seg.hot{fill:var(--sun)}
.fine{border-top:1px solid rgba(255,255,255,.18);margin-top:2.5rem;padding-top:1.4rem;font-size:.84rem;color:#a9c4c2;max-width:60rem}
@media (max-width:800px){.fgrid{grid-template-columns:1fr}footer.site{padding-bottom:8rem}}
@media (min-width:901px){footer.site{padding-bottom:3.5rem}}

/* mobile call bar */
.callbar{display:none}
@media (max-width:900px){
  .callbar{display:flex;gap:.6rem;position:fixed;left:0;right:0;bottom:0;z-index:11;padding:.7rem 1rem calc(.7rem + env(safe-area-inset-bottom,0px));background:var(--surface);border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(20,38,43,.06)}
  .callbar .btn{flex:1;padding:.8rem .5rem;font-size:.95rem}
}

/* ---------- phone layout ---------- */
@media (max-width:900px){
  .topline{display:none}               /* phone + CTA already live in the bottom call bar */
  .spine-art{max-width:15rem;padding:.6rem}
  .portrait{aspect-ratio:3/2;padding:1.25rem;gap:.6rem}
  .portrait svg{width:4.5rem}
  .condition .side .art{display:none} /* keep long condition pages scannable */
  .condition{padding-block:2.75rem}
}
@media (max-width:600px){
  body{font-size:1rem}
  .wrap{padding-inline:1rem}
  h1{font-size:2.1rem}
  h2{font-size:1.65rem}
  .lede{font-size:1.06rem}
  .hero{padding-block:1.75rem 2.25rem;gap:1.5rem}
  .hero .stack{gap:1rem}
  .ctas .btn{flex:1 1 100%}
  .section{padding-block:2.75rem}
  .head{margin-bottom:1.5rem}
  .head p{font-size:1rem}
  .trust ul{grid-template-columns:1fr 1fr}
  .trust li,.trust li:first-child{padding:.9rem .75rem;border-left:0;border-top:1px solid var(--line)}
  .trust li:nth-child(even){border-left:1px solid var(--line)}
  .trust li:nth-child(odd){padding-left:0}
  .trust li:nth-child(-n+2){border-top:0}
  .trust b{font-size:1rem}
  .trust span{font-size:.82rem}
  .regions a{grid-template-columns:4rem 1fr auto;gap:.6rem;padding:.8rem 0}
  .cards{gap:.75rem}
  .card{padding:1.15rem 1.2rem;gap:.4rem}
  .principles{gap:1.25rem}
  .steps{gap:1.2rem}
  .cta-band{padding:1.5rem;border-radius:1.1rem}
  .cta-band .right .ctas{width:100%}
  .jump{flex-wrap:nowrap;overflow-x:auto;margin-inline:-1rem;padding-inline:1rem;padding-bottom:.4rem;scrollbar-width:none}
  .jump::-webkit-scrollbar{display:none}
  .jump a{flex:none}
  .page-hero{padding-block:2rem 1.75rem}
  .panel,.callbox{padding:1.25rem}
  .callbox .phone{font-size:1.7rem}
  .flag{padding:1rem}
  footer.site{padding-top:2.5rem}
}
@media (max-width:374px){
  .brand small{font-size:.62rem}
  .brand b{font-size:1.08rem}
}

/* ---------- phone layout, pass 2 ---------- */
.callbar{transition:transform .2s ease}
.callbar.away{transform:translateY(110%)}
@media (prefers-reduced-motion:reduce){.callbar{transition:none}}
@media (max-width:900px){
  .home-spine{display:none}
  .spine-art{margin-inline:auto!important}
}
@media (max-width:600px){
  .hero .art img{aspect-ratio:16/11;object-fit:cover;object-position:50% 70%}
  .textlink{display:inline}
  .cards{gap:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
  .card{border:0;border-radius:0;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr auto;align-items:center;column-gap:1rem;row-gap:.15rem;padding:1rem 1.1rem}
  .card:first-child{border-top:0}
  .card:hover{transform:none}
  .card p{display:none}
  .card .tag{grid-column:1}
  .card h3{grid-column:1;font-size:1.15rem}
  .card .textlink{grid-column:2;grid-row:1 / span 2;margin:0;padding:0;font-size:0}
  .card .textlink::after{font-size:1.2rem}
  .fgrid ul.pages{grid-template-columns:1fr 1fr}
  .fgrid{gap:1.75rem}
  .fgrid ul{gap:.2rem}
  .fgrid li a{display:inline-block;padding-block:.35rem}
  .regions a{min-height:44px}
  details{padding:.95rem 0}
  summary{font-size:1rem}
  .checks{gap:.55rem}
  .page-hero .split{gap:1.5rem}
}