/* Corder Inc — site styles */
:root{
  --bg:#F7F5F0; --bg-sand:#F2EEE6; --bg-teal:#E7F1EE; --bg-stone:#F0EDE4;
  --surface:#FCFAF6; --white:#FFFFFF;
  --ink:#111816; --ink-2:#39413E; --ink-3:#4B5350; --ink-4:#58615E;
  --teal:#0B7D6E; --teal-dark:#096A5E; --teal-light:#2FA894;
  --clay:#C96E3B; --clay-dark:#A8552A;
  --line:rgba(17,24,22,.12); --line-soft:rgba(17,24,22,.08);
  --dark:#111715; --dark-2:#1C2421; --on-dark:#EDEBE5; --on-dark-2:#A8B1AD; --on-dark-3:#6E7873;
  --wrap:1320px; --pad:clamp(20px,4vw,64px); --sec:clamp(52px,7vw,110px);
  --font-h:'Inter Tight',system-ui,sans-serif;
  --font-b:Inter,system-ui,sans-serif;
  --font-m:'Geist Mono',ui-monospace,SFMono-Regular,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-b);font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:var(--teal);text-decoration:none}
a:hover{color:var(--teal-dark)}
::selection{background:rgba(11,125,110,.16)}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px}
h1,h2,h3{font-family:var(--font-h);font-weight:600;letter-spacing:-.025em;margin:0}
p{margin:0}

.wrap{max-width:var(--wrap);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.sec{padding-top:var(--sec);padding-bottom:var(--sec);border-top:1px solid var(--line-soft)}
.sec--plain{border-top:0}
.sec--teal{background:var(--bg-teal)}
.sec--sand{background:var(--bg-sand)}
.sec--stone{background:var(--bg-stone)}
.sec--dark{background:var(--dark);color:var(--on-dark);border-top:0}
.kicker{font-family:var(--font-m);font-size:11.5px;letter-spacing:.1em;color:var(--ink-4)}
.kicker--teal{color:var(--teal)}
.kicker--clay{color:var(--clay)}
.h1{font-size:clamp(2.35rem,4.4vw,4.1rem);line-height:1.04;letter-spacing:-.028em;text-wrap:pretty}
.h2{font-size:clamp(1.85rem,3vw,2.85rem);line-height:1.1;text-wrap:pretty}
.h3{font-size:clamp(1.12rem,1.5vw,1.3rem);letter-spacing:-.015em}
.lead{font-size:clamp(1.02rem,1.2vw,1.18rem);line-height:1.7;color:var(--ink-2)}
.body{font-size:1rem;line-height:1.7;color:var(--ink-3)}
.muted{color:var(--ink-4)}
.mw-18{max-width:18ch}.mw-20{max-width:20ch}.mw-22{max-width:22ch}.mw-24{max-width:24ch}
.mw-34{max-width:34ch}.mw-38{max-width:38ch}.mw-46{max-width:46ch}.mw-52{max-width:52ch}
.mw-56{max-width:56ch}.mw-62{max-width:62ch}.mw-70{max-width:70ch}
.mt-12{margin-top:12px}.mt-18{margin-top:18px}.mt-22{margin-top:22px}.mt-26{margin-top:26px}

.btn{display:inline-block;font-size:15.5px;font-weight:500;padding:15px 26px;border-radius:10px;border:1px solid transparent;cursor:pointer;transition:background .2s ease,transform .2s ease,border-color .2s ease,color .2s ease}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--teal);color:#fff}
.btn--primary:hover{background:var(--teal-dark);color:#fff}
.btn--ghost{border-color:rgba(17,24,22,.16);color:var(--ink);white-space:nowrap}
.btn--ghost:hover{border-color:var(--teal);color:var(--teal)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}
.link-u{font-size:15.5px;font-weight:500;border-bottom:1px solid rgba(11,125,110,.4);padding-bottom:3px;transition:border-color .2s ease}
.link-u:hover{border-color:var(--teal)}
.pill{display:inline-block;padding:5px 12px;border-radius:999px;background:rgba(11,125,110,.1);color:var(--teal);font-size:12.5px;font-weight:500}
.ic{display:block;flex:none}

/* header */
.site-head{position:sticky;top:0;z-index:100;background:rgba(247,245,240,.9);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .25s ease,box-shadow .25s ease}
.site-head.is-stuck{border-bottom-color:var(--line);box-shadow:0 1px 18px rgba(17,24,22,.05)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:32px;padding-top:18px;padding-bottom:18px}
.brand{display:flex;align-items:baseline;gap:9px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand__mark{position:relative;width:20px;height:20px;background:var(--ink);border-radius:3px;flex:none;align-self:center}
.brand__mark i{position:absolute;display:block;background:var(--bg)}
.brand__mark i:nth-child(1){left:4px;top:5px;width:12px;height:2px}
.brand__mark i:nth-child(2){left:4px;top:10px;width:7px;height:2px}
.brand__mark i:nth-child(3){right:3px;bottom:3px;width:5px;height:5px;background:var(--teal)}
.brand__name{font-family:var(--font-h);font-weight:600;font-size:20px;letter-spacing:-.02em}
.brand__suffix{font-size:11px;letter-spacing:.06em;color:var(--ink-4)}
.nav{display:flex;align-items:center;gap:34px}
.nav a{color:var(--ink);font-size:15px;opacity:.82;transition:opacity .2s ease,color .2s ease}
.nav a:hover{opacity:1;color:var(--teal)}
.nav a.is-cta{color:var(--teal);font-weight:500;opacity:1}
.nav a.is-on{opacity:1;color:var(--teal)}
.burger{display:none;width:46px;height:46px;flex-direction:column;justify-content:center;gap:5px;padding:0 11px;background:none;border:1px solid rgba(17,24,22,.14);border-radius:10px;cursor:pointer}
.burger span{display:block;height:1.5px;background:var(--ink)}
.burger span:last-child{background:var(--teal)}
.burger:hover{border-color:var(--teal)}

.mobile-menu{position:fixed;inset:0;z-index:300;background:var(--bg);display:none;flex-direction:column;overflow-y:auto}
.mobile-menu.is-open{display:flex;animation:fade .22s ease}
.mobile-menu__top{display:flex;align-items:center;justify-content:space-between;padding:18px var(--pad);border-bottom:1px solid var(--line)}
.mobile-menu__close{width:46px;height:46px;display:flex;align-items:center;justify-content:center;background:none;border:1px solid rgba(17,24,22,.14);border-radius:10px;font-size:22px;color:var(--ink);cursor:pointer}
.mobile-menu nav{flex:1;display:flex;flex-direction:column;padding:clamp(20px,5vw,40px) var(--pad) 0}
.mobile-menu nav a{font-family:var(--font-h);font-weight:600;font-size:clamp(28px,8vw,38px);letter-spacing:-.025em;color:var(--ink);padding:18px 0;border-bottom:1px solid var(--line)}
.mobile-menu nav a:hover{color:var(--teal)}
.mobile-menu__foot{padding:clamp(24px,5vw,36px) var(--pad);display:flex;flex-wrap:wrap;gap:12px 32px;font-size:15px;color:var(--ink-4)}
.mobile-menu__foot a{color:var(--ink-4)}
.mobile-menu__foot a:hover{color:var(--teal)}
@keyframes fade{from{opacity:0}to{opacity:1}}

/* layout helpers */
.split{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,430px),1fr));gap:clamp(40px,5vw,72px);align-items:center}
.split--start{align-items:start;grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr));gap:clamp(32px,4vw,64px)}
.row-end{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap}
.cards{display:grid;gap:clamp(12px,1.4vw,18px)}
.cards--3{grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:clamp(24px,3vw,48px)}
.cards--4{grid-template-columns:repeat(auto-fit,minmax(min(100%,215px),1fr))}
.cards--aud{grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:clamp(20px,2.5vw,40px)}
.cards--svc{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:clamp(28px,3.5vw,56px)}
.cards--tiles{grid-template-columns:repeat(auto-fit,minmax(min(100%,205px),1fr));gap:12px}

/* hero trace */
.panel{border:1px solid var(--line);border-radius:16px;background:var(--surface);padding:clamp(20px,2.4vw,30px);position:relative;overflow:hidden}
.panel__flow{position:absolute;top:0;left:0;width:28%;height:2px;background:linear-gradient(90deg,rgba(11,125,110,0),var(--teal),rgba(11,125,110,0));animation:flow 5s linear infinite}
@keyframes flow{0%{transform:translateX(-120%)}100%{transform:translateX(420%)}}
.trace{margin-top:22px;display:flex;flex-direction:column}
.trace__row{display:grid;grid-template-columns:auto 14px minmax(0,1fr);gap:14px;align-items:start;padding-bottom:18px}
.trace__row:last-child{padding-bottom:0}
.trace__time{font-family:var(--font-m);font-size:11.5px;color:var(--ink-4);padding-top:2px}
.trace__mark{position:relative}
.trace__mark b{position:absolute;left:4px;top:5px;width:6px;height:6px;border-radius:50%;background:var(--teal)}
.trace__mark i{position:absolute;left:6.5px;top:13px;bottom:-18px;width:1px;background:rgba(17,24,22,.14)}
.trace__row--warn .trace__mark b{background:var(--clay)}
.trace__row--live .trace__mark b{animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.35}50%{opacity:1}}
.trace__title{font-size:15.5px;font-weight:500}
.trace__title--warn{color:var(--clay-dark)}
.trace__sub{font-size:14px;color:var(--ink-4);margin-top:3px}

/* cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:clamp(18px,1.7vw,24px) clamp(16px,1.6vw,22px);position:relative;overflow:hidden;transition:border-color .2s ease,transform .2s ease}
.card:hover{border-color:var(--teal);transform:translateY(-2px)}
.card__bar{position:absolute;top:0;left:0;width:64px;height:3px;background:var(--teal)}
.card__head{display:flex;align-items:center;gap:10px;margin-top:14px}
.svc{border-top:2px solid var(--ink);border-radius:2px 2px 0 0;padding-top:22px}
.svc h3{font-size:1.45rem;letter-spacing:-.02em;margin-top:14px}
.svc ul{list-style:none;margin:22px 0 0;padding:0;display:flex;flex-direction:column;gap:9px}
.svc li{font-size:14.5px;color:var(--ink-4);padding-top:9px;border-top:1px solid rgba(17,24,22,.1)}
.topline{border-top:1px solid rgba(17,24,22,.14);padding-top:20px}

/* diagram */
.flowgrid{display:grid;grid-template-columns:minmax(0,1fr) 48px minmax(0,1.25fr) 48px minmax(0,1fr);align-items:stretch;margin-top:clamp(32px,4vw,56px)}
.flowgrid__box{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px 22px}
.flowgrid__box--core{background:var(--white);border-color:var(--teal);border-radius:14px;padding:26px 24px;position:relative;overflow:hidden;box-shadow:0 2px 24px rgba(11,125,110,.08)}
.flowgrid__arrow{display:flex;align-items:center;justify-content:center;min-height:44px;color:var(--teal);font-size:19px}
.flowlist{display:flex;flex-direction:column;gap:11px;margin-top:18px}
.flowlist div{font-size:15.5px;padding-bottom:11px;border-bottom:1px solid var(--line-soft)}
.flowlist div:last-child{padding-bottom:0;border-bottom:0}
.flowlist--2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,120px),1fr));gap:11px 20px;margin-top:20px}
.flowlist--2 div{padding-bottom:10px}
.flowlist--2 div:nth-last-child(-n+2){padding-bottom:0;border-bottom:0}

/* tiles */
.tile{display:flex;align-items:center;gap:12px;border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:18px 16px;font-size:15.5px;transition:border-color .2s ease,transform .2s ease,background .2s ease}
.tile:hover{border-color:var(--teal);background:var(--white);transform:translateY(-2px)}

.photo{margin-top:clamp(32px,4vw,52px);border-radius:16px;overflow:hidden;border:1px solid var(--line)}
.photo img{display:block;width:100%;aspect-ratio:3;height:auto;object-fit:cover}

/* faq */
.faq__item{border-top:1px solid rgba(17,24,22,.14);padding:20px 0;cursor:pointer}
.faq__item:last-child{border-bottom:1px solid rgba(17,24,22,.14)}
.faq__q{display:grid;grid-template-columns:minmax(0,1fr) 24px;gap:20px;align-items:start}
.faq__q h3{font-weight:500;font-size:1.12rem;letter-spacing:-.01em;line-height:1.4}
.faq__sign{position:relative;width:22px;height:22px;justify-self:end;margin-top:2px;transition:transform .32s cubic-bezier(.2,.65,.2,1)}
.faq__sign span{position:absolute;border-radius:2px;background:var(--teal)}
.faq__sign span:first-child{left:3px;top:10px;width:16px;height:2px}
.faq__sign span:last-child{left:10px;top:3px;width:2px;height:16px;transition:opacity .28s ease}
.faq__item.is-open .faq__sign{transform:rotate(180deg)}
.faq__item.is-open .faq__sign span:last-child{opacity:0}
.faq__a{display:none;margin-top:14px}
.faq__item.is-open .faq__a{display:block}

/* forms */
.field{display:flex;flex-direction:column;gap:8px}
.field > span{font-family:var(--font-m);font-size:11px;letter-spacing:.12em;color:var(--ink-4)}
.input,.select,.textarea{font-family:inherit;font-size:15px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:13px 14px;width:100%}
.textarea{line-height:1.6;resize:vertical}
.input:focus,.select:focus,.textarea:focus{border-color:var(--teal);outline:none}
.input::placeholder,.textarea::placeholder{color:#8A918D}
.form{display:flex;flex-direction:column;gap:22px}
.form__pair{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:22px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.notice{border:1px solid var(--teal);border-radius:16px;background:var(--bg-teal);padding:clamp(24px,3vw,40px) clamp(20px,3vw,36px)}
.notice--error{border-color:var(--clay);background:rgba(201,110,59,.08)}
.contact-list{display:flex;flex-direction:column}
.contact-list > div{border-top:1px solid var(--line);padding:22px 0}
.contact-list > div:last-of-type{border-bottom:1px solid var(--line)}

/* legal */
.legal{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:clamp(32px,4vw,64px);align-items:start}
.legal__toc{position:sticky;top:96px;display:flex;flex-direction:column;gap:10px;max-width:300px}
.legal__toc a{font-size:14.5px;color:var(--ink)}
.legal__toc a:hover{color:var(--teal)}
.legal__body{max-width:70ch;display:flex;flex-direction:column;gap:44px}
.legal__body h2{font-size:1.6rem;letter-spacing:-.02em;margin-top:10px}
.legal__body section{scroll-margin-top:96px}
.legal__contact{background:var(--bg-sand);border-radius:14px;padding:32px}

/* footer */
.site-foot{background:var(--dark-2);color:var(--on-dark);border-top:3px solid var(--teal)}
.site-foot__top{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:clamp(32px,4vw,56px);padding-top:clamp(56px,7vw,88px)}
.site-foot__col{display:flex;flex-direction:column;gap:13px;min-width:0}
.site-foot a{color:var(--on-dark);font-size:15.5px;transition:color .2s ease}
.site-foot a:hover{color:var(--teal-light)}
.site-foot__label{font-family:var(--font-m);font-size:11px;letter-spacing:.12em;color:var(--on-dark-3)}
.site-foot__note{margin-top:18px;font-size:16px;line-height:1.7;color:#9FA8A4}
.site-foot__bar{border-top:1px solid rgba(237,235,229,.16);margin-top:clamp(36px,4vw,56px);padding:22px 0 clamp(32px,4vw,44px);display:flex;justify-content:space-between;align-items:center;gap:20px 32px;flex-wrap:wrap}
.site-foot__bar span{font-size:14px;color:var(--on-dark-3)}
.site-foot__bar a{font-size:14px;color:#9FA8A4}
.site-foot__legal{display:flex;gap:28px;flex-wrap:wrap}

/* reveal */
[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .65s cubic-bezier(.2,.65,.2,1),transform .65s cubic-bezier(.2,.65,.2,1)}
[data-reveal].is-in{opacity:1;transform:none}
.no-js [data-reveal]{opacity:1;transform:none}

@media (max-width:940px){
  .flowgrid{grid-template-columns:minmax(0,1fr)}
  .flowgrid__arrow{min-height:44px}
  .flowgrid__arrow::after{content:'\2193'}
  .flowgrid__arrow span{display:none}
}
@media (max-width:920px){
  .nav{display:none}
  .burger{display:flex}
}
@media (max-width:640px){
  .btn{width:100%;text-align:center}
  .btn-row{gap:10px}
  .legal__toc{position:static;max-width:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important}
  [data-reveal]{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}