/* ==========================================================================
   28th Day Technology — v3
   Calendar mark, one orange, generous space. Minimal and deliberate.
   ========================================================================== */

@font-face{font-family:"Jakarta";src:url("../fonts/PlusJakartaSans.ttf") format("truetype");
  font-weight:200 800;font-style:normal;font-display:swap}
@font-face{font-family:"PlexMono";src:url("../fonts/IBMPlexMono-Regular.ttf") format("truetype");
  font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"PlexMono";src:url("../fonts/IBMPlexMono-Medium.ttf") format("truetype");
  font-weight:500;font-style:normal;font-display:swap}

:root{
  --paper:#F2F3F4;
  --white:#FFFFFF;
  --ink:#121417;
  --ink-2:#1B1F25;
  --slate:#5A6069;
  --line:#E3E5E8;
  --orange:#EA4B19;
  --orange-tint:#FDEFEA;

  --bg:var(--paper); --fg:var(--ink); --fg-2:var(--slate);
  --rule:var(--line); --surface:var(--white); --hot:var(--orange);

  --d:"Jakarta",-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  --m:"PlexMono",ui-monospace,SFMono-Regular,Consolas,monospace;

  --t--1:clamp(.74rem,.72rem + .08vw,.79rem);
  --t-0: clamp(1rem,.97rem + .14vw,1.06rem);
  --t-1: clamp(1.12rem,1.06rem + .28vw,1.3rem);
  --t-2: clamp(1.4rem,1.25rem + .7vw,1.85rem);
  --t-3: clamp(1.8rem,1.5rem + 1.4vw,2.7rem);
  --t-4: clamp(2.1rem,1.65rem + 1.9vw,3rem);
  --t-5: clamp(2.5rem,1.9rem + 2.7vw,3.8rem);

  --shell:1180px;
  --gut:clamp(1.25rem,5vw,3rem);
  --ease:cubic-bezier(.22,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--d);
  font-size:var(--t-0);line-height:1.62;font-weight:400;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.08;letter-spacing:-.032em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:2px}
::selection{background:var(--orange);color:#fff}

/* --- stages ------------------------------------------------------------ */
.s-paper{--bg:var(--paper)}
.s-white{--bg:var(--white)}
.s-ink{--bg:var(--ink);--fg:#F2F3F4;--fg-2:#9298A1;--rule:rgba(255,255,255,.13);
  --surface:var(--ink-2);--hot:#FF5C2B}
.s-paper,.s-white,.s-ink{background:var(--bg);color:var(--fg)}

/* --- layout ------------------------------------------------------------ */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gut)}
.band{padding-block:clamp(4.5rem,9vw,8rem)}
.band--sm{padding-block:clamp(3rem,6vw,4.5rem)}
.grid{display:grid;gap:clamp(1.5rem,3vw,2.4rem)}
@media(min-width:820px){
  .g2{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(3,1fr)}
  .split{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(2.5rem,5vw,4.5rem)}
  .split.lead{grid-template-columns:minmax(0,6.6fr) minmax(0,5.4fr)}
}

/* --- type -------------------------------------------------------------- */
.eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--m);font-weight:500;
  font-size:var(--t--1);letter-spacing:.16em;text-transform:uppercase;color:var(--hot);margin-bottom:1.5rem}
.eyebrow::before{content:"";width:7px;height:7px;background:currentColor;flex:none}
.h1{font-size:var(--t-5)}
.h2{font-size:var(--t-4)}
.cta .h2,.phead .h2,.phead h1{text-wrap:balance}
.h3{font-size:var(--t-3)}
.h4{font-size:var(--t-2)}
.h5{font-size:var(--t-1);letter-spacing:-.02em}
.lede{font-size:var(--t-1);line-height:1.55;color:var(--fg-2);max-width:56ch}
.muted{color:var(--fg-2)}
.hot{color:var(--hot)}
.measure{max-width:62ch}

/* --- buttons ----------------------------------------------------------- */
.btn{display:inline-flex;align-items:center;gap:.55rem;font-size:.92rem;font-weight:600;
  letter-spacing:-.005em;padding:.88rem 1.5rem;border-radius:7px;border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
.btn:hover{transform:translateY(-1px)}
.btn--p{background:var(--orange);color:#fff}
.btn--p:hover{background:#C93C0F}
.btn--g{border-color:var(--rule);color:var(--fg);background:transparent}
.btn--g:hover{border-color:var(--fg)}
.s-ink .btn--g:hover{background:rgba(255,255,255,.06)}
.btn-row{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:2.2rem}

.arrow{display:inline-flex;align-items:center;gap:.45rem;font-weight:600;font-size:.93rem;
  color:var(--hot);transition:gap .2s var(--ease)}
.arrow::after{content:"→";transition:transform .2s var(--ease)}
.arrow:hover{gap:.7rem}

/* --- header ------------------------------------------------------------ */
.hdr{position:sticky;top:0;z-index:100;background:rgba(242,243,244,.86);
  backdrop-filter:blur(14px) saturate(1.3);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:2rem;height:74px}
.brand{display:flex;align-items:center;gap:.7rem;color:var(--ink)}
.brand svg{width:34px;flex:none}
.brand b{font-weight:700;font-size:1.02rem;letter-spacing:-.025em;line-height:1.05}
.brand b i{display:block;font-family:var(--m);font-style:normal;font-weight:400;font-size:.56rem;
  letter-spacing:.24em;text-transform:uppercase;color:var(--slate);margin-top:3px}
.nav-l{display:none;align-items:center;gap:2rem}
@media(min-width:900px){.nav-l{display:flex}.burger{display:none}}
.nav-l a{font-size:.92rem;font-weight:500;color:var(--slate);transition:color .18s}
.nav-l a:hover,.nav-l a[aria-current="page"]{color:var(--ink)}
.burger{background:none;border:1px solid var(--line);border-radius:6px;padding:.5rem .8rem;
  font-size:.82rem;font-weight:600;color:var(--ink)}
.mnav{display:none;background:var(--white);border-top:1px solid var(--line);padding:.5rem var(--gut) 1.4rem}
.mnav.on{display:block}
@media(min-width:900px){.mnav,.mnav.on{display:none}}
.mnav a{display:block;padding:.85rem 0;border-bottom:1px solid var(--line);font-weight:600;font-size:1.02rem}

/* --- hero -------------------------------------------------------------- */
.hero{padding-block:clamp(3.5rem,8vw,7rem) clamp(4rem,9vw,7.5rem)}
.hero h1{font-size:var(--t-5);letter-spacing:-.04em;max-width:16ch}
.hero .lede{margin-top:1.7rem;max-width:46ch}
.hero-grid{display:grid;gap:clamp(2.5rem,5vw,4rem);align-items:center}
@media(min-width:980px){.hero-grid{grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr)}}

/* calendar panel (signature) */
.cal{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:1.6rem;
  box-shadow:0 1px 2px rgba(18,20,23,.04),0 12px 34px -14px rgba(18,20,23,.14)}
.cal-hd{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:1.2rem}
.cal-hd b{font-size:1.02rem;font-weight:700;letter-spacing:-.02em}
.cal-hd span{font-family:var(--m);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--slate)}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:7px}
.cal-grid u{font-family:var(--m);font-size:.6rem;letter-spacing:.06em;text-transform:uppercase;
  color:#A4A9B0;text-decoration:none;text-align:center;padding-bottom:.3rem}
.cal-grid i{aspect-ratio:1;border-radius:4px;background:var(--line);display:grid;place-items:center;
  font-family:var(--m);font-size:.64rem;font-style:normal;color:transparent;transition:background .16s linear}
.cal-grid i.on{background:var(--ink)}
.cal-grid i.last{background:var(--orange)}
.cal-ft{display:flex;justify-content:space-between;align-items:center;margin-top:1.2rem;
  padding-top:1rem;border-top:1px solid var(--line);font-family:var(--m);font-size:.7rem;
  letter-spacing:.1em;text-transform:uppercase;color:var(--slate)}
.cal-ft b{color:var(--orange);font-weight:500}

/* --- cards ------------------------------------------------------------- */
.card{background:var(--surface);border:1px solid var(--rule);border-radius:12px;
  padding:clamp(1.4rem,2.4vw,1.9rem);display:flex;flex-direction:column;gap:.7rem;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease)}
.card:hover{border-color:#CDD1D6;box-shadow:0 10px 30px -16px rgba(18,20,23,.2);transform:translateY(-2px)}
.s-ink .card:hover{border-color:rgba(255,255,255,.26);box-shadow:none}
.card .ico{width:26px;height:26px;color:var(--hot);margin-bottom:.3rem}
.card h3{font-size:var(--t-1);letter-spacing:-.022em}
.card p{color:var(--fg-2);font-size:.95rem}
.card .arrow{margin-top:auto;padding-top:.5rem}

/* --- numbered steps ---------------------------------------------------- */
.steps{display:grid;gap:0;margin-top:2.4rem;border-top:1px solid var(--rule)}
.step{display:grid;gap:.5rem 2.5rem;padding:1.6rem 0;border-bottom:1px solid var(--rule);align-items:baseline}
@media(min-width:800px){.step{grid-template-columns:5.5rem 13rem minmax(0,1fr)}}
.step .d{font-family:var(--m);font-size:.78rem;font-weight:500;letter-spacing:.08em;color:var(--hot)}
.step h3{font-size:var(--t-1);letter-spacing:-.022em}
.step p{color:var(--fg-2);font-size:.95rem}

/* --- stats ------------------------------------------------------------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:12px;overflow:hidden}
@media(min-width:700px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{background:var(--bg);padding:clamp(1.3rem,2.6vw,1.8rem)}
.stat b{display:block;font-size:var(--t-3);font-weight:700;letter-spacing:-.04em;line-height:1;
  font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:.6rem;font-size:.86rem;color:var(--fg-2)}

/* --- list -------------------------------------------------------------- */
.checks{display:grid;gap:.9rem}
.checks li{position:relative;padding-left:1.7rem;color:var(--fg-2);font-size:.98rem}
.checks li::before{content:"";position:absolute;left:0;top:.52em;width:8px;height:8px;
  border-radius:2px;background:var(--hot)}
.checks strong{color:var(--fg);font-weight:600}

.tags{display:flex;flex-wrap:wrap;gap:.4rem}
.tags li{font-family:var(--m);font-size:.68rem;letter-spacing:.04em;padding:.3rem .55rem;
  border:1px solid var(--rule);border-radius:5px;color:var(--fg-2)}

/* --- accordion --------------------------------------------------------- */
.acc{border-top:1px solid var(--rule)}
.acc details{border-bottom:1px solid var(--rule)}
.acc summary{list-style:none;cursor:pointer;padding:1.25rem 0;display:flex;justify-content:space-between;
  align-items:center;gap:1.4rem;font-weight:700;font-size:var(--t-1);letter-spacing:-.022em}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:"+";font-family:var(--m);color:var(--hot);font-size:1.25rem;flex:none}
.acc details[open] summary::after{content:"–"}
.acc p{padding-bottom:1.3rem;color:var(--fg-2);max-width:70ch;font-size:.97rem}

/* --- form -------------------------------------------------------------- */
.form{display:grid;gap:1rem}
@media(min-width:680px){.form .r2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}}
.field label{display:block;font-size:.84rem;font-weight:600;margin-bottom:.4rem}
.field input,.field select,.field textarea{width:100%;font:inherit;font-size:.97rem;
  background:var(--white);color:var(--ink);border:1px solid var(--line);border-radius:8px;
  padding:.82rem .95rem;transition:border-color .18s,box-shadow .18s}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--orange);
  box-shadow:0 0 0 3px rgba(234,75,25,.12)}
.note{font-size:.86rem;color:var(--fg-2)}

/* --- contact rail ------------------------------------------------------ */
.rail{display:grid;gap:0;border-top:1px solid var(--rule)}
.rail div{border-bottom:1px solid var(--rule);padding:1rem 0;display:grid;gap:.15rem}
.rail span{font-family:var(--m);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--fg-2)}
.rail a,.rail p{font-size:1.02rem;font-weight:500}
.rail a:hover{color:var(--orange)}

/* --- cta --------------------------------------------------------------- */
.cta{background:var(--ink);color:#F2F3F4;border-radius:16px;padding:clamp(2.2rem,5vw,3.6rem)}
.cta .lede{color:#9298A1}

/* --- footer ------------------------------------------------------------ */
.ftr{background:var(--ink);color:#F2F3F4;padding-block:clamp(3rem,6vw,4.2rem) 1.6rem}
.ftr-g{display:grid;gap:2.2rem}
@media(min-width:860px){.ftr-g{grid-template-columns:1.8fr 1fr 1fr}}
.ftr h4{font-family:var(--m);font-weight:500;font-size:.68rem;letter-spacing:.16em;
  text-transform:uppercase;color:#7C828B;margin-bottom:.9rem}
.ftr li{margin-bottom:.5rem}
.ftr a{color:#D6DADF;font-size:.93rem;transition:color .18s}
.ftr a:hover{color:var(--orange)}
.ftr .brand{color:#F2F3F4}
.ftr .brand b i{color:#7C828B}
.ftr-b{margin-top:2.6rem;padding-top:1.3rem;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:.8rem;justify-content:space-between;font-size:.82rem;color:#7C828B}

/* --- page head --------------------------------------------------------- */
.phead{padding-block:clamp(3rem,6vw,4.8rem) clamp(1.5rem,3vw,2.4rem)}
.crumb{font-family:var(--m);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--fg-2);margin-bottom:1.2rem}
.crumb a:hover{color:var(--orange)}

/* --- reveal ------------------------------------------------------------ */
.rv{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.rv.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .rv{opacity:1;transform:none}
}