/* ============================================================
   BOXD — shared styles
   Palette sampled from the ink-wash brand artwork.
   ============================================================ */
:root{
  --paper:      #ffffff;
  --wash:       #f2f2f3;
  --wash-2:     #e4e5e7;
  --ink:        #08090a;
  --ink-2:      #24272c;
  --ink-3:      #74767c;
  --rule:       #dcdde0;
  --accent:     #c6382c;   /* the red streak at UI strength */
  --accent-wash:#e8837a;   /* the red as it appears in the artwork */

  --display:"Archivo Black","Arial Black","Helvetica Neue",Impact,sans-serif;
  --body:Archivo,-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;

  --nav-w:250px;
}

*{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(--body);font-size:16.5px;line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}

/* ============================================================
   LEFT SIDEBAR
   ============================================================ */
.nav{
  position:fixed;inset:0 auto 0 0;width:var(--nav-w);z-index:60;
  background:var(--paper);border-right:1.5px solid var(--ink);
  display:flex;flex-direction:column;padding:30px 26px 26px;
}
.nav .brand{display:block;border:0;margin:0 0 34px}
.nav .brand img{width:106px;display:block}

.nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.nav a.item{
  display:block;border:0;position:relative;
  font-family:var(--display);font-size:13px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--ink);padding:9px 0 9px 18px;
  transition:color .15s;
}
.nav a.item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:8px;height:2px;background:var(--ink);opacity:.22;transition:all .18s;
}
.nav a.item:hover{color:var(--accent)}
.nav a.item:hover::before{background:var(--accent);opacity:1;width:12px}
.nav a.item[aria-current="page"]{color:var(--accent)}
.nav a.item[aria-current="page"]::before{background:var(--accent);opacity:1;width:14px;height:3px}

.nav .foot{margin-top:auto;padding-top:26px;border-top:1px solid var(--rule);font-size:13px;color:var(--ink-3)}
.nav .foot a{display:block;margin:0 0 6px}

/* mobile bar + drawer */
.bar{display:none;position:sticky;top:0;z-index:70;background:var(--paper);
  border-bottom:1.5px solid var(--ink);padding:12px 18px;align-items:center;justify-content:space-between}
.bar img{width:60px;display:block}
.burger{background:none;border:1.5px solid var(--ink);border-radius:5px;padding:8px 11px;cursor:pointer;
  display:flex;flex-direction:column;gap:4px;width:42px}
.burger span{display:block;height:2px;background:var(--ink);transition:transform .2s,opacity .2s}
.scrim{display:none;position:fixed;inset:0;background:rgba(8,9,10,.45);z-index:55}
.scrim.open{display:block}

/* ============================================================
   CONTENT
   ============================================================ */
.main{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.wrap{width:100%;max-width:820px;margin:0 auto;padding:0 34px}
.body{flex:1;padding:52px 0 0}

h1{
  font-family:var(--display);font-weight:400;text-transform:uppercase;
  font-size:clamp(38px,6.4vw,74px);line-height:.94;letter-spacing:-.015em;
  margin:0 0 20px;text-wrap:balance;
}
h1.big{font-size:clamp(44px,8.4vw,92px)}
h2{
  font-family:var(--display);font-weight:400;text-transform:uppercase;
  font-size:clamp(19px,2.5vw,23px);letter-spacing:.02em;line-height:1.15;
  margin:0 0 4px;
}
h3{font-family:var(--display);font-size:15px;letter-spacing:.04em;text-transform:uppercase;margin:26px 0 8px}
p{margin:0 0 16px;max-width:62ch}
.lede{font-size:clamp(17px,2vw,19.5px);color:var(--ink-2);max-width:50ch}
.eyebrow{font-size:11.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-3);
  font-weight:600;margin:0 0 16px}

/* the red hairline — the one spot of colour. Keep it rare. */
.streak{width:104px;height:3px;margin:0 0 24px;
  background:linear-gradient(90deg,var(--accent) 0,var(--accent-wash) 70%,transparent)}
.streak.mid{margin-left:auto;margin-right:auto;
  background:linear-gradient(90deg,transparent,var(--accent) 24%,var(--accent-wash) 76%,transparent)}

a{color:var(--ink-2);text-decoration:none;border-bottom:1.5px solid var(--rule);
  transition:color .15s,border-color .15s}
a:hover{color:var(--accent);border-bottom-color:var(--accent)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

.btn{
  display:inline-block;background:var(--ink);color:var(--paper);border:1.5px solid var(--ink);
  padding:13px 24px;font-family:var(--display);font-size:13px;letter-spacing:.08em;
  text-transform:uppercase;border-radius:0;cursor:pointer;
}
.btn:hover{background:var(--accent);border-color:var(--accent);color:var(--paper)}
.btn.ghost{background:none;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* ============================================================
   PAGE BANNER
   ============================================================ */
.banner{margin:0 0 34px;border-bottom:1.5px solid var(--ink)}
.banner img{display:block;width:100%;height:clamp(150px,26vw,260px);object-fit:cover;object-position:center}

/* ============================================================
   HOME — the box-opening animation
   ============================================================ */
.hero{display:grid;grid-template-columns:minmax(0,.74fr) minmax(0,1fr);gap:14px 44px;
  align-items:center;margin:0 0 6px}
.hero .copy{min-width:0;container-type:inline-size}
/* sized off the column, not the viewport, so a wide display face can't overflow */
.hero h1,.hero h1.big{font-size:clamp(34px,11.5cqw,54px)}
.stage{position:relative;width:100%;max-width:400px;margin:0 auto;
  aspect-ratio:1000/1249;cursor:pointer}
.stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;opacity:0}
.stage .f1{opacity:1}
.stage.play .f2{animation:reveal .55s .85s forwards}
.stage.play .f3{animation:reveal .55s 1.75s forwards}
@keyframes reveal{to{opacity:1}}
@media (prefers-reduced-motion:reduce){
  .stage .f2,.stage .f3{animation:none!important;opacity:1}
}

/* ============================================================
   FORM
   ============================================================ */
form.signup{max-width:460px}
.field{display:flex;gap:9px;flex-wrap:wrap}
input[type=email]{
  flex:1 1 210px;min-width:0;background:var(--paper);color:var(--ink);
  border:1.5px solid var(--ink);border-radius:0;padding:13px 15px;font:inherit;font-size:16px;
  transition:box-shadow .16s;
}
input[type=email]::placeholder{color:#9a9ca1}
input[type=email]:focus{outline:none;box-shadow:0 0 0 3px var(--accent-wash)}
.fineprint{font-size:13px;color:var(--ink-3);margin:11px 0 0}
.msg{display:none;margin-top:15px;padding:13px 15px;border:1.5px solid var(--ink);font-size:15px}
.msg.show{display:block}
.msg.ok{background:var(--wash)}
.msg.err{border-color:var(--accent)}
.msg a{color:var(--accent)}
.hp{position:absolute;left:-9999px}

/* ============================================================
   MENU
   ============================================================ */
.course{margin:0 0 42px}
.course-head{display:flex;align-items:baseline;gap:14px;margin:0 0 14px;
  border-bottom:1.5px solid var(--ink);padding-bottom:8px}
.course-head h2{margin:0}
.course-head .note{font-size:12.5px;color:var(--ink-3);margin-left:auto;white-space:nowrap}

.item{display:flex;align-items:baseline;gap:12px;padding:13px 0;border-bottom:1px solid var(--rule)}
.item:last-child{border-bottom:0}
.item .n{font-family:var(--display);font-size:14.5px;letter-spacing:.02em;text-transform:uppercase;
  flex:0 0 auto}
.item .d{color:var(--ink-3);font-size:14.5px;flex:1 1 auto}
.item .p{font-family:var(--display);font-size:14px;color:var(--ink-3);flex:0 0 auto;
  font-variant-numeric:tabular-nums}
.item.lead .n{color:var(--accent)}

.sizes{margin:0 0 22px}
.sizes img{display:block;width:100%;height:auto}
.sizerow{display:flex;gap:0;margin:6px 0 0;text-align:center}
.sizerow div{flex:1;font-family:var(--display);font-size:13px;letter-spacing:.14em;text-transform:uppercase}
.sizerow span{display:block;font-family:var(--body);font-size:12px;letter-spacing:0;
  text-transform:none;color:var(--ink-3);margin-top:2px}

.tbc{background:var(--wash);border-left:3px solid var(--accent);padding:15px 19px;margin:0 0 30px}
.tbc p{margin:0;max-width:60ch;font-size:15px}
.tbc strong{font-family:var(--display);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  display:block;margin-bottom:5px;color:var(--accent)}

/* ============================================================
   BITS
   ============================================================ */
.figure{margin:0 0 30px}
.figure img{display:block;width:100%;border:1.5px solid var(--ink)}
.figure figcaption{font-size:12.5px;color:var(--ink-3);margin-top:8px}

.pair{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:26px;margin:0 0 30px}
.deets dt{font-family:var(--display);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-3);margin:0 0 3px}
.deets dd{margin:0 0 18px;font-size:16px}

.cta{border-top:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink);
  padding:28px 0;margin:38px 0 0;display:flex;gap:18px;align-items:center;flex-wrap:wrap;
  justify-content:space-between}
.cta p{margin:0;max-width:38ch}

footer{border-top:1.5px solid var(--ink);margin-top:56px;padding:20px 0 38px;
  font-size:13.5px;color:var(--ink-3)}
.footrow{display:flex;gap:10px 24px;flex-wrap:wrap;justify-content:space-between;align-items:center}
.mark{font-family:var(--display);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink)}
.links{display:flex;gap:18px;flex-wrap:wrap}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:900px){
  .nav .brand{display:none}
  .nav{padding-top:100px}   /* clear the sticky top bar */
  .hero{grid-template-columns:1fr;text-align:center;gap:6px}
  .hero .streak{margin-left:auto;margin-right:auto}
  .hero .lede{margin-left:auto;margin-right:auto}
  .hero form.signup{margin-left:auto;margin-right:auto}
  .stage{max-width:330px}
  .bar{display:flex}
  .nav{
    transform:translateX(-100%);transition:transform .24s ease;
    box-shadow:0 0 40px rgba(0,0,0,.18);width:262px;
  }
  .nav.open{transform:none}
  .main{margin-left:0}
  .wrap{padding:0 22px}
  .body{padding-top:34px}
  .cta{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  body{font-size:16px}
  .item{flex-wrap:wrap;gap:4px 12px}
  .item .d{flex:1 1 100%;order:3}
  .btn{width:100%;text-align:center}
  .field .btn,form.signup button{flex:1 1 100%}
}