/* Miso Orthodontic Studio — design system
   Palette + type lifted from the interior renders and the signage lockup.
   Two accents only: amber = cove lighting, celadon = airway/wellness. */
:root{
  --ink:#14100D; --ink-2:#0F0C0A; --walnut:#2E1E14; --walnut-2:#3E2A1C;
  --amber:#C98A4B; --amber-soft:#E7C79E; --celadon:#7E9AA2; --celadon-soft:#BFD6DB;
  --travertine:#E2D7C6; --hanji:#F4EFE6; --paper:#FAF8F3; --paper-2:#F1EBE0;
  --text:#3A2C20; --muted:#6D5A49; --faint:#A9856A;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Jost",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,monospace;
  --arch:999px 999px 4px 4px;
  --gut:clamp(20px,5vw,60px);
  --band:clamp(64px,9vw,112px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--serif);font-weight:300;
  font-size:17px;line-height:1.75;text-wrap:pretty;
  background-image:repeating-linear-gradient(0deg,rgba(20,16,13,.014) 0 1px,transparent 1px 3px);}
img{max-width:100%;height:auto;display:block}
a{color:#8A5A2B;text-decoration:none}
a:hover{color:var(--amber)}
h1,h2,h3,h4{font-weight:200;letter-spacing:-.02em;line-height:1.12;margin:0;color:#221812}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:99;background:var(--hanji);color:var(--ink);padding:12px 18px;border-radius:4px}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
.wrap{max-width:1360px;margin:0 auto;padding:0 var(--gut)}
.band{padding:var(--band) 0}
.band--paper{background:var(--paper)}
.band--hanji{background:var(--paper-2)}
.band--ink{background:var(--ink);color:rgba(247,243,236,.74)}
.band--ink h1,.band--ink h2,.band--ink h3{color:#F7F3EC}
.band--walnut{background:var(--walnut);color:rgba(247,243,236,.74)}
.band--walnut h2{color:#F7F3EC}

/* type scale */
.eyebrow{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.28em;text-transform:uppercase;color:var(--faint);margin:0 0 24px}
.band--ink .eyebrow,.band--walnut .eyebrow{color:var(--amber-soft)}
.eyebrow--celadon{color:#6D8B93}
.band--ink .eyebrow--celadon{color:var(--celadon-soft)}
.h1{font-size:clamp(44px,7.4vw,92px);line-height:1.02;letter-spacing:-.035em}
.h1-sm{font-size:clamp(34px,4.6vw,60px);line-height:1.08;letter-spacing:-.03em}
.h2{font-size:clamp(30px,3.6vw,50px)}
.h3{font-size:clamp(24px,2.4vw,34px)}
.lede{font-size:clamp(17px,1.4vw,19px);line-height:1.7;max-width:56ch}
.lede--on-dark{color:rgba(247,243,236,.74)}
.lede-sm{font-size:15.5px;line-height:1.75;color:var(--muted);max-width:46ch}
.mono-label{font-family:var(--mono);font-size:9.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--faint);margin:0 0 14px}
.mono-sm{font-family:var(--mono);font-size:10px;line-height:2;letter-spacing:.14em;color:var(--muted)}
.pull{font-size:clamp(26px,3.2vw,40px);line-height:1.34;font-weight:200;color:#221812;letter-spacing:-.015em}
.band--ink .pull{color:#F4EFE6}
.sig{font-family:var(--sans);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.band--ink .sig{color:rgba(244,239,230,.6)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:15px 32px;border-radius:999px;
  font-family:var(--sans);font-size:11.5px;font-weight:400;letter-spacing:.16em;text-transform:uppercase;
  border:1px solid transparent;transition:transform .25s ease,background-color .25s ease,color .25s ease,border-color .25s ease}
.btn:hover{transform:translateY(-1px)}
.btn--amber{background:var(--amber);color:#1A1209}
.btn--amber:hover{background:var(--amber-soft);color:#1A1209}
.btn--ink{background:var(--walnut);color:var(--hanji)}
.btn--ink:hover{background:var(--ink);color:var(--hanji)}
.btn--cream{background:var(--hanji);color:var(--walnut)}
.btn--cream:hover{background:#fff;color:var(--walnut)}
.btn--ghost{border-color:rgba(20,16,13,.22);color:#3A2C20}
.btn--ghost:hover{border-color:var(--amber);color:#8A5A2B}
.btn--ghost-light{border-color:rgba(244,239,230,.32);color:rgba(244,239,230,.9)}
.btn--ghost-light:hover{border-color:var(--amber-soft);color:#fff}
.btn--sm{min-height:42px;padding:12px 22px;font-size:10.5px}
.txt-link{font-family:var(--sans);font-size:11px;letter-spacing:.14em;text-transform:uppercase;border-bottom:1px solid rgba(138,90,43,.35);padding-bottom:3px}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:rgba(20,16,13,.94);backdrop-filter:blur(10px);border-bottom:1px solid rgba(244,239,230,.1)}
.site-head__in{display:flex;align-items:center;justify-content:space-between;gap:24px;max-width:1360px;margin:0 auto;padding:16px var(--gut)}
.lockup{display:block;color:var(--hanji)}
.lockup:hover{color:#fff}
.lockup__m{display:block;font-family:var(--sans);font-weight:500;font-size:16px;letter-spacing:.42em}
.lockup__s{display:block;font-family:var(--mono);font-size:7px;letter-spacing:.3em;text-transform:uppercase;color:rgba(244,239,230,.5);margin-top:5px}
.nav ul{display:flex;gap:clamp(14px,2vw,32px);list-style:none;margin:0;padding:0}
.nav a{font-family:var(--sans);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:rgba(244,239,230,.72);padding:6px 0;border-bottom:1px solid transparent}
.nav a:hover,.nav a[aria-current]{color:var(--amber-soft);border-bottom-color:var(--amber)}
.head-cta{display:flex;align-items:center;gap:12px}
.burger{display:none;width:46px;height:46px;background:none;border:1px solid rgba(244,239,230,.25);border-radius:999px;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:14px;height:1px;background:var(--hanji);transition:transform .3s ease,opacity .3s ease}
.burger[aria-expanded="true"] span:first-child{transform:translateY(3px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-3px) rotate(-45deg)}
.drawer{background:var(--ink);border-top:1px solid rgba(244,239,230,.1);padding:20px var(--gut) 34px}
.drawer[hidden]{display:none}
.drawer ul{list-style:none;margin:0 0 22px;padding:0}
.drawer li{border-top:1px solid rgba(244,239,230,.12)}
.drawer a{display:block;padding:16px 0;font-family:var(--serif);font-size:24px;font-weight:200;color:var(--hanji)}
.drawer__tel{display:block;margin-top:16px;font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:rgba(244,239,230,.6)}

/* hero */
.hero{position:relative;min-height:min(88vh,760px);display:flex;align-items:flex-end;overflow:hidden;background:var(--ink)}
.hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 42%}
.hero__scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,16,13,.55) 0%,rgba(20,16,13,.15) 34%,rgba(20,16,13,.9) 100%)}
.hero__in{position:relative;width:100%;max-width:1360px;margin:0 auto;padding:0 var(--gut) clamp(48px,7vw,86px)}
.hero__in>*{opacity:0;transform:translateY(22px);animation:rise .9s cubic-bezier(.22,.7,.24,1) forwards}
.hero__in>*:nth-child(2){animation-delay:.1s}
.hero__in>*:nth-child(3){animation-delay:.18s}
.hero__in>*:nth-child(4){animation-delay:.26s}
@keyframes rise{to{opacity:1;transform:none}}
.hero h1{color:#F7F3EC;max-width:19ch}
.hero .lede{color:rgba(247,243,236,.76);margin-top:24px}
.hero__rule{display:flex;align-items:center;gap:14px;margin-bottom:26px}
.hero__rule span:first-child{width:38px;height:1px;background:var(--amber)}
.hero__rule span:last-child{font-family:var(--mono);font-size:9.5px;letter-spacing:.3em;text-transform:uppercase;color:var(--amber-soft)}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
@media (prefers-reduced-motion:reduce){.hero__in>*{animation:none;opacity:1;transform:none}}

/* page hero (inner pages) */
.phero{background:var(--ink);padding:clamp(56px,8vw,104px) 0 clamp(48px,6vw,84px)}
.phero h1{color:#F7F3EC;max-width:22ch}
.phero p.lede{color:rgba(247,243,236,.74);margin-top:22px}
.phero__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,5vw,72px);align-items:end}
.phero__img{border-radius:var(--arch);overflow:hidden;aspect-ratio:4/5}
.phero__img img{width:100%;height:100%;object-fit:cover}
.crumbs{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin:0 0 26px;padding:0;font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;text-transform:uppercase}
.crumbs li+li::before{content:"/";margin-right:10px;color:rgba(244,239,230,.3)}
.crumbs a{color:rgba(244,239,230,.55)}
.crumbs a:hover{color:var(--amber-soft)}
.crumbs li[aria-current]{color:var(--amber-soft)}

/* layout helpers */
.wrap--split{max-width:1360px;margin:0 auto;padding:0 var(--gut);display:grid;grid-template-columns:minmax(240px,.8fr) minmax(0,1.4fr);gap:clamp(28px,5vw,80px);align-items:start}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px);align-items:center}
.arch-img{border-radius:var(--arch);overflow:hidden}
.arch-img img{width:100%;height:100%;object-fit:cover}
.prose p+p{margin-top:0}
.prose h3{margin:38px 0 12px}
.prose ul{margin:0 0 1em;padding-left:20px}
.prose li{margin-bottom:.5em}
.answer{font-size:clamp(19px,2vw,24px);line-height:1.55;font-weight:200;color:#221812;border-left:2px solid var(--amber);padding-left:22px;margin:0 0 32px}
.band--ink .answer{color:#F7F3EC;border-left-color:var(--celadon)}

/* facts strip */
.facts{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(20,16,13,.12);border-bottom:1px solid rgba(20,16,13,.12)}
.facts>div{padding:30px 26px;border-right:1px solid rgba(20,16,13,.1)}
.facts>div:last-child{border-right:0}
.facts strong{display:block;font-family:var(--serif);font-weight:200;font-size:clamp(24px,2.4vw,34px);color:#221812;letter-spacing:-.02em}
.facts span{display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:10px}

/* treatment index rows */
.rows{border-top:1px solid rgba(244,239,230,.1)}
.row{display:grid;grid-template-columns:64px minmax(0,1fr) minmax(0,26rem) 120px;gap:clamp(16px,3vw,32px);align-items:center;
  padding:30px var(--gut);border-bottom:1px solid rgba(244,239,230,.1);max-width:1360px;margin:0 auto;
  position:relative;transition:background-color .3s ease}
.row::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(201,138,75,.14),transparent 55%);opacity:0;transition:opacity .35s ease}
.row:hover::before{opacity:1}
.row>*{position:relative}
.row__n{font-family:var(--mono);font-size:10px;color:var(--amber)}
.row__t{font-family:var(--serif);font-weight:200;font-size:clamp(24px,2.6vw,34px);color:#F7F3EC;letter-spacing:-.02em}
.row__d{font-size:14.5px;line-height:1.6;color:rgba(244,239,230,.6)}
.row__go{justify-self:end;font-family:var(--sans);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber-soft)}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--paper);border:1px solid rgba(20,16,13,.09);display:flex;flex-direction:column}
.card--lead{grid-row:span 2}
.card__img{aspect-ratio:16/10;overflow:hidden}
.card--lead .card__img{aspect-ratio:4/3}
.card__img img{width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.22,.7,.24,1)}
.card:hover .card__img img{transform:scale(1.04)}
.card__body{padding:26px}
.card h3{margin:12px 0 10px}
.card p{font-size:14.5px;line-height:1.7;color:var(--muted)}

/* steps */
.steps{list-style:none;margin:0;padding:0}
.steps li{display:flex;gap:20px;padding:22px 0;border-top:1px solid rgba(247,243,236,.16)}
.steps li:last-child{border-bottom:1px solid rgba(247,243,236,.16)}
.steps b{flex:none;width:52px;font-family:var(--serif);font-weight:200;font-size:28px;color:var(--celadon-soft)}
.steps span{display:block;font-family:var(--sans);font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:#F4EFE6}
.steps p{margin:6px 0 0;font-size:14.5px;line-height:1.6;color:rgba(247,243,236,.64)}
.band--paper .steps li{border-color:rgba(20,16,13,.14)}
.band--paper .steps b{color:var(--amber)}
.band--paper .steps span{color:#221812}
.band--paper .steps p{color:var(--muted)}

/* gallery */
.gallery{display:grid;grid-template-columns:1.4fr 1fr;gap:16px}
.gallery__side{display:grid;grid-template-rows:1fr 1fr;gap:16px}
.gallery figure{margin:0;overflow:hidden;border-radius:3px;position:relative;background:var(--walnut)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.22,.7,.24,1)}
.gallery figure:hover img{transform:scale(1.03)}
.gallery__main{height:clamp(300px,42vw,460px)}
.gallery figcaption{position:absolute;left:14px;bottom:12px;font-family:var(--mono);font-size:9px;letter-spacing:.16em;text-transform:uppercase;color:rgba(247,243,236,.85);text-shadow:0 1px 6px rgba(0,0,0,.6)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-3 figure{margin:0;border-radius:3px;overflow:hidden;aspect-ratio:1;position:relative}

/* faq */
.faq__item{border-top:1px solid rgba(20,16,13,.14)}
.faq__item:last-child{border-bottom:1px solid rgba(20,16,13,.14)}
.faq__item summary{display:flex;justify-content:space-between;gap:20px;align-items:baseline;list-style:none;cursor:pointer;
  padding:22px 0;font-size:clamp(18px,1.7vw,20px);font-weight:300;color:#221812}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+";font-family:var(--serif);font-size:22px;color:var(--amber);flex:none}
.faq__item[open] summary::after{content:"\2212"}
.faq__item summary:hover{color:#8A5A2B}
.faq__a{padding:0 0 24px;max-width:62ch;color:var(--muted);font-size:15.5px;line-height:1.8}
.faq__a p+p{margin-top:1em}

/* placeholders for photography not yet shot */
.ph{background:var(--travertine);background-image:repeating-linear-gradient(-45deg,rgba(20,16,13,.05) 0 9px,transparent 9px 18px);
  display:flex;align-items:flex-end;padding:16px;color:#7A6552;font-family:var(--mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;line-height:1.6}
.ph--arch{border-radius:var(--arch)}
.ph--portrait{aspect-ratio:3/4}
.ph--case{aspect-ratio:4/5}

/* cta band */
.cta-band{position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,transparent,var(--amber),transparent)}
.cta-band__in{display:flex;flex-wrap:wrap;gap:36px;justify-content:space-between;align-items:flex-end}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px}

/* footer */
.site-foot{background:var(--ink);color:rgba(244,239,230,.6);padding:clamp(48px,6vw,72px) 0 26px}
.site-foot__in{display:grid;grid-template-columns:minmax(240px,1fr) minmax(0,1.6fr);gap:clamp(28px,5vw,72px)}
.site-foot .lockup__m{color:var(--hanji);font-size:14px}
.site-foot .lockup__s{margin-bottom:18px}
.site-foot .mono-sm{color:rgba(244,239,230,.45)}
.site-foot a{color:rgba(244,239,230,.7)}
.site-foot a:hover{color:var(--amber-soft)}
.site-foot__cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.site-foot__cols ul{list-style:none;margin:0;padding:0}
.site-foot__cols li{margin-bottom:10px}
.site-foot__cols a{font-family:var(--sans);font-size:12.5px;letter-spacing:.04em}
.site-foot .mono-label{color:var(--amber);opacity:.8}
.site-foot__legal{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:44px;padding-top:20px;border-top:1px solid rgba(244,239,230,.1)}

/* reveal on scroll */
[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.22,.7,.24,1),transform .8s cubic-bezier(.22,.7,.24,1)}
[data-reveal].is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){[data-reveal]{opacity:1;transform:none;transition:none}}

/* responsive */
@media (max-width:1080px){
  .nav{display:none}
  .burger{display:flex}
  .cards{grid-template-columns:1fr 1fr}
  .card--lead{grid-row:auto;grid-column:span 2}
  .facts{grid-template-columns:1fr 1fr}
  .facts>div:nth-child(2n){border-right:0}
  .facts>div:nth-child(-n+2){border-bottom:1px solid rgba(20,16,13,.1)}
  .row{grid-template-columns:44px minmax(0,1fr) 90px}
  .row__d{display:none}
}
@media (max-width:820px){
  body{font-size:16.5px}
  .wrap--split,.two-col,.phero__grid,.site-foot__in{grid-template-columns:1fr}
  .phero__img{aspect-ratio:16/11;order:-1}
  .gallery{grid-template-columns:1fr}
  .gallery__side{grid-template-rows:auto;grid-template-columns:1fr 1fr}
  .gallery__side figure{aspect-ratio:1}
  .cards{grid-template-columns:1fr}
  .card--lead{grid-column:auto}
  .site-foot__cols{grid-template-columns:1fr 1fr}
  .cta-band__in{align-items:flex-start}
}
@media (max-width:520px){
  .grid-3{grid-template-columns:1fr 1fr}
  .facts{grid-template-columns:1fr}
  .facts>div{border-right:0;border-bottom:1px solid rgba(20,16,13,.1)}
  .head-cta .btn{display:none}
  .btn{width:100%}
  .cta-band__actions .btn,.actions .btn{width:auto;flex:1 1 auto}
}
@media print{.site-head,.drawer,.cta-band,.burger{display:none}body{background:#fff}}