:root{
  --bg:#EEF3F4; --surface:#FFFFFF; --ink:#10252E; --muted:#4E646D; --line:#D3DEE1;
  --teal:#0E6B73; --teal-ink:#FFFFFF; --amber:#F4B41F; --amber-ink:#10252E; --soft:#E1ECEE; --deep:#10252E;
  box-sizing:border-box; padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0C1A21; --surface:#13262F; --ink:#E8F1F3; --muted:#9DB3BB; --line:#26404B;
    --teal:#4FC3CC; --teal-ink:#0C1A21; --soft:#183039; --deep:#081318; color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0C1A21; --surface:#13262F; --ink:#E8F1F3; --muted:#9DB3BB; --line:#26404B;
  --teal:#4FC3CC; --teal-ink:#0C1A21; --soft:#183039; --deep:#081318; color-scheme:dark;
}
html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 72px);scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 "Avenir Next","Segoe UI","Helvetica Neue",Arial,sans-serif}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);background:var(--bg);z-index:10}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,6vw,3.6rem);font-weight:800}
h2{font-size:clamp(1.6rem,4vw,2.3rem);font-weight:750}
h3{font-size:1.15rem;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em;max-width:62ch}
a{color:var(--teal)}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
section{padding:72px 0}
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.3rem;letter-spacing:-.03em;color:var(--ink);text-decoration:none}
.logo svg{width:34px;height:34px;flex:none}
.logo b{color:var(--teal);font-weight:inherit}
.mk-b{fill:none;stroke:currentColor;stroke-width:4}
.mk-c{fill:none;stroke:var(--teal);stroke-width:5;stroke-linecap:round}
.mk-d{fill:var(--amber)}
nav{display:flex;gap:22px;align-items:center}
nav a{color:var(--ink);text-decoration:none;font-size:.95rem}
nav a:hover{text-decoration:underline}
.btn{display:inline-block;background:var(--amber);color:var(--amber-ink);padding:13px 22px;border-radius:10px;text-decoration:none;border:0;font:inherit;font-weight:700;cursor:pointer}
.btn:hover{filter:brightness(.95)}
.btn.ghost{background:transparent;color:var(--ink);border:2px solid var(--ink)}
@media (max-width:760px){nav a:not(.btn){display:none}}
.hero{padding:56px 0 72px}
.hero .grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.lead{font-size:1.2rem;color:var(--muted)}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.note{font-size:.85rem;color:var(--muted);margin-top:10px}
.labels{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;background:var(--soft);border-radius:28px;padding:28px}
.lab{aspect-ratio:1/1;display:grid;place-items:center;border:4px solid var(--ink);border-radius:14px;font-weight:800;font-size:1.9rem;background:var(--surface)}
.lab small{display:block;font-size:.55em;font-weight:700;margin-top:-4px;color:var(--muted)}
.labels p{grid-column:1/-1;margin:6px 0 0;font-size:.9rem;color:var(--muted)}
@media (max-width:820px){.hero .grid{grid-template-columns:1fr}.labels{max-width:460px}}
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px}
.card p{color:var(--muted);margin:0 0 .8em}
.card ul{margin:0;padding-left:1.1em;color:var(--muted)}
.card li{margin-bottom:.35em}
@media (max-width:860px){.three{grid-template-columns:1fr}}
.dark{background:var(--deep);color:#E8F1F3}
.dark p{color:#B7CBD2}
.alt{background:var(--surface)}
.ft-note{margin:0}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.facts div{border-left:4px solid var(--amber);padding-left:16px}
.facts strong{display:block;font-size:1.1rem;margin-bottom:4px;color:#fff}
@media (max-width:760px){.facts{grid-template-columns:1fr}}
.phases{list-style:none;counter-reset:p;margin:28px 0 0;padding:0;display:grid;gap:12px}
.phases li{counter-increment:p;display:grid;grid-template-columns:44px 1fr;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 20px}
.phases li::before{content:counter(p);display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--teal);color:var(--teal-ink);font-weight:800}
.phases h3{margin:0 0 4px}.phases p{margin:0;color:var(--muted)}
.callout{margin-top:20px;background:var(--soft);border-radius:14px;padding:16px 20px;max-width:none}
details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:0 20px;margin-bottom:10px}
summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::after{content:"+";font-size:1.4rem;line-height:1}
details[open] summary::after{content:"−"}
details p{color:var(--muted)}
.dark a{color:var(--amber)}
.src{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:12px}
.src li{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 20px}
.src a{font-weight:700}
.src p{margin:4px 0 0;color:var(--muted);font-size:.95rem}
.form{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form .full{grid-column:1/-1}
label{display:block;font-weight:600;font-size:.95rem;margin-bottom:6px}
input,select,textarea{width:100%;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px}
textarea{min-height:110px;resize:vertical}
.status{display:none;background:var(--soft);border-radius:12px;padding:16px;font-weight:600}
.status.is-visible{display:block}
.status.is-error{border-left:4px solid #B3261E}
.status.is-ok{border-left:4px solid var(--teal)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.btn[disabled]{opacity:.6;cursor:progress}
@media (max-width:640px){.form{grid-template-columns:1fr}}
footer{background:var(--deep);color:#DCE8EB;padding:44px 0 56px;font-size:.95rem}
footer a{color:#DCE8EB}
footer .g{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:28px}
footer h3{color:#fff;font-size:1rem}
footer ul{list-style:none;padding:0;margin:0}footer li{margin-bottom:6px}
@media (max-width:760px){footer .g{grid-template-columns:1fr}}