/* Treflex website. Colours and type follow the app (mint ground, teal accent, IBM Plex).
   Fonts are served from this site (no Google Fonts): put IBMPlexSans-Regular/SemiBold/Bold .woff2 into /fonts. */
@font-face{font-family:'IBM Plex Sans';font-weight:400;font-display:swap;src:local('IBM Plex Sans'),local('IBMPlexSans-Regular'),url('fonts/IBMPlexSans-Regular.woff2') format('woff2');}
@font-face{font-family:'IBM Plex Sans';font-weight:600;font-display:swap;src:local('IBM Plex Sans SemiBold'),local('IBMPlexSans-SemiBold'),url('fonts/IBMPlexSans-SemiBold.woff2') format('woff2');}
@font-face{font-family:'IBM Plex Sans';font-weight:700;font-display:swap;src:local('IBM Plex Sans Bold'),local('IBMPlexSans-Bold'),url('fonts/IBMPlexSans-Bold.woff2') format('woff2');}
@font-face{font-family:'IBM Plex Mono';font-weight:400;font-display:swap;src:local('IBM Plex Mono'),url('fonts/IBMPlexMono-Regular.ttf') format('truetype');}
:root{
  --bg:#e8eef2; --panel:#fafcfd; --mint:#dceaef; --line:#cfe0e6;
  --ink:#1e2a34; --ink-dim:#56636d; --ink-faint:#8a98a1;
  --teal:#007a99; --teal-hover:#006680; --deep:#00566c;
  --stab:#6F76C9; --stab-soft:#E3E5F6;
  --sans:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif; --mono:'IBM Plex Mono',ui-monospace,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-text-size-adjust:100%}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal)}
a:focus-visible,.btn:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:4px}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:10}

/* header */
.site-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand img{width:40px;height:40px}
.brand b{font-size:22px;letter-spacing:.01em;line-height:1}
.brand small{display:block;font-family:var(--mono);font-size:12px;color:var(--ink-faint);margin-top:3px}
.site-head nav a{color:var(--ink-dim);text-decoration:none;font-size:15px;margin-left:20px}
.site-head nav a.btn{color:#fff;margin-left:20px}
.site-head nav a:hover{color:var(--teal)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 26px;border-radius:4px;background:var(--teal);color:#fff;font-weight:600;font-size:16px;text-decoration:none;border:1px solid var(--teal);transition:background .15s}
.btn:hover{background:var(--teal-hover)}
.btn.quiet{background:transparent;color:var(--deep);border-color:var(--line)}
.btn.quiet:hover{background:var(--mint)}
.btn.small{min-height:40px;padding:8px 18px;font-size:15px}

/* hero */
.hero{display:grid;gap:40px;padding:28px 0 64px;align-items:center}
.hero h1{font-size:clamp(34px,6.4vw,58px);line-height:1.06;letter-spacing:-.01em;margin:0 0 20px;font-weight:700;max-width:14ch}
.hero p.lead{font-size:clamp(18px,2.4vw,21px);color:var(--ink-dim);margin:0 0 30px;max-width:34em}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-phones{position:relative;display:flex;justify-content:center;align-items:flex-start;gap:0;padding-bottom:8px}
.hero-phones .phone:first-child{transform:translateY(34px) rotate(-3deg);margin-right:-26px;z-index:1}
.hero-phones .phone:last-child{transform:rotate(2.5deg)}

/* device frame holding a real screenshot of the app */
.phone{width:min(46vw,248px);background:var(--ink);border-radius:34px;padding:7px;box-shadow:0 18px 40px -14px rgba(15,60,66,.45)}
.phone img{border-radius:27px;width:100%;background:#fff}
.screen{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 14px 30px -18px rgba(15,60,66,.5)}
.screen img{width:100%}

/* sections */
section{padding:56px 0}
h2{font-size:clamp(26px,4vw,38px);line-height:1.15;margin:0 0 14px;letter-spacing:-.005em;max-width:20ch}
.intro{color:var(--ink-dim);max-width:36em;margin:0 0 36px;font-size:18px}
.rule{border:0;border-top:1px solid var(--line);margin:0}

/* how it works: a real sequence */
.steps{list-style:none;margin:0;padding:0;display:grid;gap:26px;counter-reset:s}
.steps li{counter-increment:s;display:grid;grid-template-columns:44px 1fr;gap:14px}
.steps li::before{content:counter(s);width:44px;height:44px;border-radius:50%;background:var(--mint);color:var(--deep);font-weight:700;display:grid;place-items:center}
.steps h3{margin:2px 0 4px;font-size:19px}
.steps p{margin:0;color:var(--ink-dim)}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.how{display:grid;gap:36px;align-items:start}
.how .phone{margin:0 auto}

/* two modules */
.mods{display:grid;gap:28px}
.shots{display:grid;gap:14px;align-self:end}
.mod{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:26px;display:grid;gap:22px;align-content:start;border-top:5px solid var(--teal)}
.mod.stab{border-top-color:var(--stab)}
.mod h3{margin:0;font-size:26px}
.mod .what{margin:0;color:var(--ink-dim)}
.mod ul{margin:0;padding-left:1.15em;color:var(--ink)}
.mod li{margin:6px 0}
.mod.stab a{color:#4f56b0}
.tag{display:inline-block;font-size:14px;font-weight:600;border-radius:99px;padding:3px 12px;background:var(--mint);color:var(--deep);width:max-content}
.mod.stab .tag{background:var(--stab-soft);color:#4c53ad}

/* devices */
.devices{background:var(--panel);border-block:1px solid var(--line)}
.flow{display:block;width:100%;max-width:720px;height:auto;margin:0 0 30px}
.cols{display:grid;gap:26px}
.cols h3{margin:0 0 6px;font-size:19px}
.cols p{margin:0;color:var(--ink-dim)}

/* good to know */
.know{display:grid;gap:30px}
.know h3{margin:0 0 6px;font-size:19px}
.know p{margin:0;color:var(--ink-dim);max-width:40em}
.disclaimer{background:var(--panel);border:1px solid var(--line);border-left:5px solid var(--ink-faint);border-radius:4px;padding:22px 24px;max-width:46em}
.disclaimer h3{margin:0 0 8px}
.disclaimer p{margin:0 0 10px;color:var(--ink-dim);font-size:16px}
.disclaimer p:last-child{margin:0}

.cta{text-align:left}
.cta h2{max-width:22ch}
footer.site-foot{padding:32px 0 56px;color:var(--ink-faint);font-size:14px}
footer.site-foot a{color:var(--ink-dim);text-decoration:none;margin-right:18px}
footer.site-foot a:hover{text-decoration:underline}

/* legal pages */
.page{max-width:780px;margin:0 auto;padding:8px 20px 60px}
.draftbar{background:#FFF6D6;border:1px solid #E8D48A;color:#5C4A00;border-radius:6px;padding:9px 12px;font-size:14px;margin-bottom:20px}
.doc{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:8px 24px 24px;line-height:1.6;font-size:16px}
.doc h1{font-size:26px;margin:22px 0 10px}.doc h2{font-size:19px;margin:26px 0 8px;max-width:none}.doc h3{font-size:16px}
.doc table{border-collapse:collapse;width:100%;font-size:14px;margin:12px 0;display:block;overflow-x:auto}
.doc th,.doc td{border:1px solid var(--line);padding:7px 9px;text-align:left;vertical-align:top}
.doc th{background:var(--mint)}
.doc code{font-family:var(--mono);font-size:13px;background:var(--bg);padding:1px 4px;border-radius:3px}

@media (min-width:860px){
  .hero{grid-template-columns:1.05fr .95fr;padding:48px 0 88px}
  .hero-phones .phone{width:236px}
  .how{grid-template-columns:1fr 280px;gap:64px}
  .mods{grid-template-columns:1fr 1fr}
  .cols{grid-template-columns:repeat(3,1fr);gap:40px}
  .know{grid-template-columns:1fr 1.15fr;gap:48px;align-items:start}
  section{padding:80px 0}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media (max-width:699px){.site-head nav a.link{display:none}}