/* The Root Cause Physician — shared stylesheet */

:root{
  --white:#FFFFFF; --wash:#EEF5F9; --sky:#A3CCE0; --sky-deep:#7CB2CC;
  --night:#14181B; --charcoal:#2C3236; --ink:#191D20; --grey:#5C666C; --line:#E3E8EB;
  --wa:#25A75A;
  --hz-chem:#C77B54; --hz-phys:#5A8CA8; --hz-ergo:#7E8F5C; --hz-time:#8A7BB0; --hz-psy:#C0736F;
  --display:"Newsreader",Georgia,serif; --body:"DM Sans",system-ui,sans-serif; --mono:"DM Mono",ui-monospace,monospace;
  --wrap:1200px; --gut:clamp(1.25rem,5vw,4.5rem); --pill:999px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);font-weight:300;background:var(--white);color:var(--ink);line-height:1.62;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gut)}
section{padding-block:clamp(3.5rem,8vw,7rem)}
h1,h2,h3{font-family:var(--display);font-weight:300;line-height:1.08;letter-spacing:-.018em}
h1{font-size:clamp(2.2rem,6.2vw,4.1rem)}
h2{font-size:clamp(1.9rem,4.6vw,3rem)}
h3{font-size:clamp(1.2rem,2.4vw,1.5rem);line-height:1.22}
.eyebrow{font-family:var(--mono);font-size:.68rem;letter-spacing:.17em;text-transform:uppercase;color:var(--grey)}
.lede{font-size:clamp(1.02rem,2.2vw,1.2rem);max-width:56ch;color:var(--grey)}
.fine{font-size:.78rem;color:#8A959B;max-width:64ch}
.prose p{max-width:62ch;color:var(--grey);font-size:1rem}
.prose p + p{margin-top:1.1rem}
.wash{background:var(--wash)}
.dark{background:var(--charcoal);color:#EDEFF0}
.dark h2,.dark h3{color:#fff}
.dark .lede{color:#AEB6BA}
.dark .eyebrow{color:var(--sky)}
.dark .prose p{color:#AEB6BA}
.sky{background:var(--sky)}
.sky .eyebrow{color:#3C5A69}
.sky .lede{color:#2E4450}
.sky .prose p{color:#2E4450}

/* nav */
.nav{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav__in{display:flex;align-items:center;justify-content:space-between;height:66px;gap:.6rem}
.nav__mark{font-family:var(--display);font-size:clamp(.96rem,3.4vw,1.18rem);text-decoration:none;letter-spacing:-.01em;white-space:nowrap}
.nav__right{display:flex;align-items:center;gap:.55rem}
.burger{width:42px;height:42px;display:grid;place-items:center;background:none;border:1px solid var(--line);border-radius:50%;cursor:pointer;transition:border-color .2s}
.burger:hover{border-color:var(--sky-deep)}
.burger span{display:block;width:17px;height:1.5px;background:var(--ink);position:relative;transition:background .25s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:17px;height:1.5px;background:var(--ink);transition:transform .25s,top .25s}
.burger span::before{top:-5.5px}.burger span::after{top:5.5px}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
.menu{position:fixed;inset:66px 0 auto;z-index:70;background:var(--white);border-bottom:1px solid var(--line);
  transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;box-shadow:0 24px 44px -34px rgba(25,29,32,.5)}
.menu[data-open="true"]{opacity:1;transform:none;pointer-events:auto}
.menu ul{list-style:none;padding-block:1.5rem 2.1rem;display:grid;gap:.1rem}
.menu a{display:block;font-family:var(--display);font-size:1.4rem;padding:.5rem 0;text-decoration:none;border-bottom:1px solid var(--line);transition:padding-left .2s,color .2s}
.menu a:hover{padding-left:.6rem;color:var(--sky-deep)}
@media(min-width:720px){.menu ul{grid-template-columns:1fr 1fr;gap:.1rem 3rem}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;font-family:var(--body);font-weight:500;
  font-size:.82rem;letter-spacing:.05em;text-transform:uppercase;text-decoration:none;padding:.95rem 1.9rem;
  border-radius:var(--pill);border:1px solid transparent;cursor:pointer;
  transition:background .22s,color .22s,border-color .22s,transform .22s}
.btn--sky{background:var(--sky);color:var(--ink)}
.btn--sky:hover,.btn--sky:focus-visible{background:var(--sky-deep);transform:translateY(-1px)}
.btn--dark{background:var(--charcoal);color:#fff}
.btn--dark:hover,.btn--dark:focus-visible{background:var(--ink);transform:translateY(-1px)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn--ghost:hover,.btn--ghost:focus-visible{background:#fff;color:var(--ink);border-color:#fff}
.btn--wa{background:var(--wa);color:#fff}
.btn--wa:hover,.btn--wa:focus-visible{background:#1E8C4A;transform:translateY(-1px)}
.btn--sm{padding:.6rem 1.15rem;font-size:.7rem}
.btn svg{width:16px;height:16px;fill:currentColor;flex:none}
.btnrow{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:2rem}

/* home hero */
.hero{background:var(--night);color:#fff;overflow:hidden}
.hero__grid{display:grid;align-items:end}
@media(min-width:900px){.hero__grid{grid-template-columns:1.02fr .98fr;gap:clamp(2rem,4vw,4rem)}}
.hero__copy{padding-block:clamp(2.8rem,7vw,5rem) clamp(2.2rem,5vw,4.5rem)}
.hero__eyebrow{font-family:var(--body);font-weight:500;font-size:.8rem;letter-spacing:.09em;text-transform:uppercase;color:#fff}
.hero h1{color:#fff;margin:1.1rem 0 .6rem;max-width:17ch}
.hero__by{font-family:var(--display);font-style:italic;font-size:clamp(1.15rem,2.7vw,1.5rem);color:var(--sky)}
.hero__sub{margin-top:1.2rem;max-width:44ch;font-size:clamp(.98rem,2.1vw,1.12rem);color:#A9B3BA}
.hero__cta{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:2rem}
.hero__creds{margin-top:2.2rem;padding-top:1.2rem;border-top:1px solid rgba(255,255,255,.14);display:grid;gap:.5rem;max-width:44ch}
.hero__creds p{font-family:var(--mono);font-size:.66rem;letter-spacing:.11em;text-transform:uppercase;color:#8E999F;line-height:1.7}
.hero__creds b{color:#fff;font-weight:500}
.hero__photo{position:relative;align-self:end}
.hero__photo img{width:100%;height:auto;object-fit:cover;object-position:center top}
@media(max-width:899px){.hero__photo{margin-inline:calc(var(--gut) * -1)}.hero__photo img{max-height:62vh;object-position:center 18%}}
@media(min-width:900px){.hero__photo img{max-height:640px}}

/* interior page hero */
.phero{background:var(--night);color:#fff;overflow:hidden}
.phero__grid{display:grid;gap:0;align-items:center}
@media(min-width:880px){.phero__grid{grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4.5rem)}}
.phero__copy{padding-block:clamp(2.6rem,6vw,4.6rem)}
.phero h1{color:#fff;margin:1rem 0 1.1rem;max-width:15ch}
.phero .eyebrow{color:var(--sky)}
.phero__sub{max-width:46ch;font-size:clamp(1rem,2.1vw,1.15rem);color:#A9B3BA}
.phero__photo{overflow:hidden;border-radius:0}
@media(max-width:879px){.phero__photo{margin-inline:calc(var(--gut) * -1);order:-1}.phero__photo img{max-height:44vh;object-fit:cover;width:100%}}
@media(min-width:880px){.phero__photo img{width:100%;height:100%;max-height:520px;object-fit:cover;border-radius:16px}}

/* start band */
.start{text-align:center}
.start h2{margin:.9rem auto 1.8rem;max-width:22ch}
.pills{display:flex;flex-wrap:wrap;gap:.55rem;justify-content:center;max-width:52rem;margin-inline:auto}
.pill{display:inline-flex;align-items:center;font-family:var(--body);font-weight:400;font-size:.83rem;
  padding:.68rem 1.4rem;border-radius:var(--pill);border:1px solid var(--sky);background:var(--sky);
  color:var(--ink);text-decoration:none;transition:background .2s,transform .2s}
.pill:hover,.pill:focus-visible{background:var(--sky-deep);transform:translateY(-1px)}
.pill--dark{background:var(--charcoal);border-color:var(--charcoal);color:#fff}
.pill--dark:hover,.pill--dark:focus-visible{background:var(--ink)}

/* occupation map */
.map{margin-top:2.4rem;display:grid;gap:1.4rem}
@media(min-width:940px){.map{grid-template-columns:minmax(0,290px) minmax(0,1fr);gap:2.4rem;align-items:start}}
.filter{width:100%;font-family:var(--body);font-size:.86rem;font-weight:300;padding:.7rem 1.1rem;
  border:1px solid var(--line);border-radius:var(--pill);background:var(--white);color:var(--ink);margin-bottom:.7rem}
.filter::placeholder{color:#93A0A6}
.filter:focus{outline:2px solid var(--sky-deep);outline-offset:2px}
.jobs{display:flex;flex-wrap:wrap;gap:.4rem}
@media(min-width:940px){.jobs{flex-direction:column;flex-wrap:nowrap;gap:.3rem;max-height:27rem;overflow-y:auto;padding-right:.35rem}}
.jobs::-webkit-scrollbar{width:4px}
.jobs::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
.job{font-family:var(--body);font-size:.85rem;font-weight:400;padding:.58rem 1rem;border-radius:var(--pill);
  border:1px solid var(--line);background:var(--white);color:var(--grey);cursor:pointer;text-align:left;transition:all .18s}
@media(min-width:940px){.job{width:100%;border-radius:10px}}
.job:hover{border-color:var(--sky-deep);color:var(--ink)}
.job[aria-selected="true"]{background:var(--charcoal);border-color:var(--charcoal);color:#fff}
.job[hidden]{display:none}
.panel{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:clamp(1.4rem,3.5vw,2.2rem)}
.panel__job{font-family:var(--display);font-size:clamp(1.45rem,3.4vw,2rem);margin-bottom:.3rem}
.panel__ctx{font-size:.87rem;color:var(--grey);margin-bottom:1.4rem}
.classes{display:flex;flex-wrap:wrap;gap:.35rem;margin-bottom:1.6rem}
.cl{font-family:var(--mono);font-size:.58rem;letter-spacing:.13em;text-transform:uppercase;padding:.28rem .65rem;border-radius:var(--pill);color:#fff}
.cl--chem{background:var(--hz-chem)}.cl--phys{background:var(--hz-phys)}
.cl--ergo{background:var(--hz-ergo)}.cl--time{background:var(--hz-time)}.cl--psy{background:var(--hz-psy)}
.panel__cols{display:grid;gap:1.5rem}
@media(min-width:620px){.panel__cols{grid-template-columns:1fr 1fr;gap:2rem}}
.panel__h{font-family:var(--mono);font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--grey);
  padding-bottom:.6rem;margin-bottom:.85rem;border-bottom:2px solid var(--sky)}
.panel ul{list-style:none}
.panel li{font-size:.9rem;padding:.34rem 0 .34rem 1.15rem;position:relative}
.panel li::before{content:"";position:absolute;left:0;top:.92em;width:6px;height:6px;border-radius:50%;background:var(--sky-deep)}
.panel li[data-c="chem"]::before{background:var(--hz-chem)}
.panel li[data-c="phys"]::before{background:var(--hz-phys)}
.panel li[data-c="ergo"]::before{background:var(--hz-ergo)}
.panel li[data-c="time"]::before{background:var(--hz-time)}
.panel li[data-c="psy"]::before{background:var(--hz-psy)}
.panel__cta{margin-top:1.8rem;padding-top:1.5rem;border-top:1px solid var(--line)}
.panel__fade{animation:fade .3s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* cards */
.grid3{display:grid;gap:1rem;margin-top:2.8rem}
@media(min-width:660px){.grid3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1020px){.grid3{grid-template-columns:repeat(3,minmax(0,1fr))}}
.card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:18px;padding:1.7rem 1.5rem 1.5rem;
  text-decoration:none;background:var(--white);transition:border-color .22s,transform .22s,box-shadow .22s}
.card:hover,.card:focus-visible{border-color:var(--sky);transform:translateY(-3px);box-shadow:0 16px 34px -26px rgba(25,29,32,.45)}
.card__label{font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--grey);margin-bottom:1rem}
.card h3{margin-bottom:.6rem}
.card p{font-size:.88rem;color:var(--grey);flex:1}
.card__go{margin-top:1.3rem;font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink)}
.card--sky{background:var(--sky);border-color:var(--sky)}
.card--sky p{color:#2E4450}
.card--sky .card__label{color:#3C5A69}

/* sequence / steps */
.seq{display:grid;gap:2rem;margin-top:2.8rem}
@media(min-width:820px){.seq{grid-template-columns:repeat(3,minmax(0,1fr));gap:2.6rem}}
.seq--2{grid-template-columns:1fr}
@media(min-width:820px){.seq--2{grid-template-columns:repeat(2,minmax(0,1fr))}}
.step__n{font-family:var(--mono);font-size:.7rem;letter-spacing:.13em;color:var(--grey);display:block;
  margin-bottom:.8rem;padding-bottom:.8rem;border-bottom:2px solid var(--sky)}
.step h3{margin-bottom:.5rem}
.step p{font-size:.89rem;color:var(--grey)}
.dark .step__n{color:#9BA5AB;border-bottom-color:var(--sky)}
.dark .step p{color:#AEB6BA}

/* signal list */
.signals{list-style:none;display:grid;gap:.15rem;margin-top:2.2rem;max-width:62ch}
.signals li{font-size:1rem;padding:.85rem 0 .85rem 1.6rem;border-bottom:1px solid var(--line);position:relative;color:var(--ink)}
.signals li::before{content:"";position:absolute;left:0;top:1.45em;width:7px;height:7px;border-radius:50%;background:var(--sky-deep)}
.dark .signals li{color:#DCE1E4;border-bottom-color:rgba(255,255,255,.11)}

/* band + film */
.band{display:grid;gap:3rem}
@media(min-width:960px){.band{grid-template-columns:1fr 1fr;gap:4.5rem;align-items:center}}
.film{display:block;text-decoration:none}
.film__art{position:relative;border-radius:14px;overflow:hidden;background:#12161B;transition:transform .25s}
.film:hover .film__art{transform:translateY(-3px)}
.film__art img{width:100%;height:auto}
.film__play{position:absolute;inset:0;display:grid;place-items:center;background:rgba(12,16,20,.18);transition:background .25s}
.film:hover .film__play{background:rgba(12,16,20,.32)}
.film__play i{width:66px;height:66px;border-radius:50%;background:rgba(255,255,255,.95);display:grid;place-items:center;box-shadow:0 10px 30px -12px rgba(0,0,0,.6)}
.film__play i::after{content:"";border-left:18px solid var(--ink);border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:5px}
.film__cap{margin-top:1rem;font-size:.85rem;color:#AEB6BA}

/* figure */
.figure{margin-top:2.8rem;border-radius:16px;overflow:hidden}
.figure img{width:100%;height:auto}

/* credentials */
.creds3{display:grid;gap:1.9rem;margin-top:2.8rem}
@media(min-width:800px){.creds3{grid-template-columns:repeat(3,minmax(0,1fr));gap:2.6rem}}
.cred__k{font-family:var(--display);font-size:1.65rem;padding-bottom:.65rem;margin-bottom:.75rem;border-bottom:2px solid var(--sky)}
.cred p{font-size:.88rem;color:var(--grey)}
.cred p + p{margin-top:.5rem}

/* contact */
.contact{display:grid;gap:2.8rem}
@media(min-width:880px){.contact{grid-template-columns:1fr 1fr;gap:4.5rem}}
.dl{font-size:.94rem}
.dl dt{font-family:var(--mono);font-size:.63rem;letter-spacing:.16em;text-transform:uppercase;color:#3C5A69;margin-top:1.6rem}
.dl dt:first-child{margin-top:0}
.dl dd{color:#243B47;margin-top:.35rem}

/* legal */
.legal{display:grid;gap:2.5rem}
@media(min-width:960px){.legal{grid-template-columns:220px minmax(0,1fr);gap:4rem;align-items:start}}
.legal__nav{position:sticky;top:86px;display:none}
@media(min-width:960px){.legal__nav{display:block}}
.legal__nav ul{list-style:none;display:grid;gap:.3rem}
.legal__nav a{font-size:.85rem;color:var(--grey);text-decoration:none;display:block;padding:.35rem 0;border-bottom:1px solid var(--line)}
.legal__nav a:hover{color:var(--ink)}
.legal h2{font-size:clamp(1.6rem,3.6vw,2.3rem);margin-bottom:1.2rem;padding-top:2.6rem;scroll-margin-top:86px}
.legal h2:first-child{padding-top:0}
.legal h3{font-size:1.08rem;margin:2rem 0 .55rem;font-family:var(--body);font-weight:500;letter-spacing:0}
.legal p{font-size:.94rem;color:var(--grey);max-width:70ch}
.legal p + p{margin-top:.8rem}
.legal ul{margin:.7rem 0 0 1.1rem;color:var(--grey);font-size:.94rem;max-width:70ch}
.legal li{padding:.18rem 0}
.legal__meta{font-family:var(--mono);font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;color:var(--grey);
  padding:1rem 0;border-block:1px solid var(--line);margin-bottom:2rem}

footer{background:var(--charcoal);padding-block:2.4rem;color:#98A1A6}
.foot{display:flex;flex-wrap:wrap;gap:1rem 2rem;justify-content:space-between;font-size:.78rem}
.foot nav{display:flex;flex-wrap:wrap;gap:1.2rem}
.foot a{text-decoration:none;transition:color .2s}
.foot a:hover{color:#fff}
.foot__legal{width:100%;font-size:.74rem;line-height:1.75;color:#7E888D;border-top:1px solid rgba(255,255,255,.09);
  padding-top:1.4rem;margin-top:.4rem;max-width:78ch}

[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease;transition-delay:var(--d,0ms)}
[data-reveal].in{opacity:1;transform:none}
:focus-visible{outline:2px solid var(--sky-deep);outline-offset:3px}
.sr{position:absolute;left:-9999px}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
  [data-reveal]{opacity:1;transform:none}
}

/* ---------- exposome carousel ---------- */
.carousel{position:relative;margin-top:2.6rem}
.carousel__track{
  display:flex;gap:1rem;overflow-x:auto;scroll-snap-type:x mandatory;
  scroll-behavior:smooth;padding-bottom:.5rem;
  scrollbar-width:none;-ms-overflow-style:none;
}
.carousel__track::-webkit-scrollbar{display:none}
.ecard{
  flex:0 0 auto;width:min(78vw,320px);scroll-snap-align:start;
  border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--white);
  transition:border-color .22s,transform .22s,box-shadow .22s;
}
.ecard:hover{border-color:var(--sky);transform:translateY(-3px);box-shadow:0 16px 34px -26px rgba(25,29,32,.45)}
.ecard__img{aspect-ratio:3/2;overflow:hidden;background:var(--wash)}
.ecard__img img{width:100%;height:100%;object-fit:cover}
.ecard__body{padding:1.15rem 1.25rem 1.35rem}
.ecard__k{font-family:var(--mono);font-size:.58rem;letter-spacing:.18em;text-transform:uppercase;color:var(--sky-deep);margin-bottom:.5rem}
.ecard h3{font-size:1.22rem;margin-bottom:.4rem}
.ecard p{font-size:.85rem;color:var(--grey)}
@media(min-width:760px){.ecard{width:300px}}

.carousel__nav{display:none;gap:.5rem;justify-content:flex-end;margin-top:1.2rem}
@media(min-width:760px){.carousel__nav{display:flex}}
.cbtn{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--white);
  display:grid;place-items:center;cursor:pointer;transition:border-color .2s,background .2s,opacity .2s}
.cbtn:hover:not(:disabled){border-color:var(--sky-deep);background:var(--wash)}
.cbtn:disabled{opacity:.32;cursor:default}
.cbtn svg{width:15px;height:15px;stroke:var(--ink);stroke-width:1.6;fill:none}
.carousel__hint{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;
  color:#93A0A6;margin-top:1rem}
@media(min-width:760px){.carousel__hint{display:none}}