/* Bots Meet Brains: signup page
   Roles: bg #000000 · surface #080d14 · text #f5f2f2 · muted #a3acb9
          accent #0de0eb (action/focus only) · divider #0a3854 · meta rule #f5f2f2 */
:root{
  --bg:#000000; --card:#080d14; --text:#f5f2f2; --muted:#a3acb9; --soft:#d9dde3;
  --cyan:#0de0eb; --rule:#0a3854; --danger:#ff8a8a;
  --ease:cubic-bezier(.22,1,.36,1);
  --serif:'Playfair Display', Georgia, 'Times New Roman', serif;
  --sans:'Inter', system-ui, -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;
  --px:clamp(22px, 5vw, 56px);
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--bg); -webkit-text-size-adjust:100%}
body{margin:0; min-height:100vh; background:var(--bg); color:var(--text);
  font-family:var(--sans); font-size:16px; line-height:1.6;
  padding:clamp(0px, 3vw, 40px) clamp(0px, 3vw, 24px) clamp(0px, 4vw, 48px);
  -webkit-font-smoothing:antialiased;}
img{display:block; max-width:100%; height:auto}
a{color:var(--cyan)}
:focus-visible{outline:2px solid var(--cyan); outline-offset:3px; border-radius:4px}

.skip{position:absolute; left:-9999px; top:8px; background:var(--cyan); color:#000; padding:8px 14px; border-radius:6px; font-weight:600; z-index:10}
.skip:focus{left:8px}

.card{max-width:880px; margin:0 auto; background:var(--card); border-radius:12px; overflow:hidden;
  box-shadow:0 0 0 1px rgba(13,224,235,.06), 0 30px 80px -40px rgba(13,224,235,.18);}

/* Masthead */
.masthead{padding:clamp(22px,3.4vw,34px) var(--px) clamp(18px,3vw,28px); text-align:center}
.wordmark{margin:0; display:inline-flex; align-items:center; gap:clamp(10px,1.4vw,16px);
  font-family:var(--serif); font-weight:500; font-size:clamp(38px, 8.2vw, 74px); line-height:1.05;
  color:#fff; letter-spacing:.2px; white-space:nowrap}
.logo{width:clamp(46px,7vw,76px); height:auto; filter:drop-shadow(0 0 18px rgba(13,224,235,.35));
  animation:glow 5s var(--ease) infinite alternate}
@keyframes glow{from{filter:drop-shadow(0 0 10px rgba(13,224,235,.22))} to{filter:drop-shadow(0 0 24px rgba(13,224,235,.5))}}

/* Meta row: thin light rules, like the issue header */
.meta{display:flex; justify-content:space-between; gap:8px 24px; flex-wrap:wrap;
  border-top:1px solid var(--text); border-bottom:1px solid var(--text);
  padding:15px var(--px); font-size:12px; line-height:16px; font-weight:500; text-transform:uppercase; letter-spacing:.3px}
.cyan{color:var(--cyan)}

/* Hero */
.hero{padding:clamp(34px,6vw,64px) var(--px) clamp(26px,4vw,40px)}
.headline{margin:0 0 20px; font-size:clamp(30px, 4.6vw, 54px); line-height:1.1; max-width:20ch; font-weight:700; letter-spacing:-.02em; color:#fff; text-wrap:balance}
.headline em, .section-title em{color:var(--cyan); font-style:italic}
.lede{margin:0 0 30px; font-size:clamp(16px,1.6vw,18px); line-height:1.65; color:var(--soft); max-width:62ch}

/* Form */
.label{display:block; font-size:13px; font-weight:600; letter-spacing:.2px; margin:0 0 8px; color:var(--text)}
.field-row{display:flex; gap:10px; max-width:560px}
.signup input{flex:1 1 auto; min-width:0; height:54px; padding:0 18px; font:inherit; font-size:16px; color:var(--text);
  background:#03070c; border:1px solid #1d4a66; border-radius:8px; transition:border-color .2s var(--ease), box-shadow .2s var(--ease)}
.signup input::placeholder{color:#7d8794}
.signup input:hover{border-color:#2a6488}
.signup input:focus{outline:none; border-color:var(--cyan); box-shadow:0 0 0 3px rgba(13,224,235,.25)}
.signup input[aria-invalid="true"]{border-color:var(--danger)}
.btn{flex:0 0 auto; height:54px; padding:0 26px; font:inherit; font-size:16px; font-weight:700; color:#001417;
  background:var(--cyan); border:0; border-radius:8px; cursor:pointer;
  transition:transform .18s var(--ease), box-shadow .18s var(--ease), background-color .18s var(--ease)}
.btn:hover{background:#4ff0f7; box-shadow:0 8px 24px -8px rgba(13,224,235,.6)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid #fff; outline-offset:3px}
.btn[disabled]{opacity:.7; cursor:progress}
.note{margin:10px 0 0; font-size:13px; color:var(--muted)}
.status{margin:8px 0 0; min-height:1.6em; font-size:15px; font-weight:600}
.status.ok{color:var(--cyan)}
.status.err{color:var(--danger)}
.signup.done .field-row, .signup.done .note, .signup.done .label{display:none}
.signup.done .status{font-size:18px; margin:0}

/* Divider */
.rule{border:0; border-top:2px solid var(--rule); margin:0 var(--px)}

/* What's inside */
.inside{padding:clamp(32px,5vw,48px) var(--px) clamp(30px,5vw,44px)}
.section-title{margin:0 0 24px; font-size:20px; line-height:1.3; font-weight:700; text-transform:uppercase; color:#fff; letter-spacing:.2px}
.grid{list-style:none; margin:0; padding:0; display:grid; grid-template-columns:repeat(4,1fr); gap:24px}
.grid li{border-top:1px solid var(--rule); padding-top:16px}
.num{display:block; font-size:12px; font-weight:600; color:var(--cyan); letter-spacing:.6px; margin-bottom:8px}
.grid h3{margin:0 0 6px; font-size:16px; line-height:1.35; font-weight:700; color:#fff}
.grid p{margin:0; font-size:14px; line-height:1.55; color:var(--muted)}

/* Footer */
.footer{margin:0 var(--px); border-top:2px solid var(--rule); padding:24px 0 32px; text-align:center; font-size:13px; line-height:1.7; color:var(--muted)}
.footer p{margin:0}
.foot-mark{font-family:var(--serif); font-size:18px; color:#fff; margin-bottom:2px!important}
.footer a{color:var(--cyan); text-underline-offset:3px}
.copy{margin-top:8px!important}

@media (max-width:820px){ .grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width:560px){
  body{padding:0}
  .card{border-radius:0; box-shadow:none}
  .headline{max-width:none}
  .meta{flex-direction:column; gap:4px}
  .field-row{flex-direction:column}
  .btn{width:100%}
  .grid{grid-template-columns:1fr; gap:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important; transition:none!important}
}

/* Issues pages */
.top-nav{display:flex; justify-content:space-between; align-items:center; padding:14px var(--px); font-size:13px; font-weight:600; border-bottom:1px solid var(--rule)}
.top-nav a{color:var(--text); text-decoration:none}
.top-nav a:hover{color:var(--cyan)}
.issue-head{padding:clamp(28px,5vw,52px) var(--px) clamp(20px,3vw,30px)}
.issue-head h1{margin:0 0 14px; font-family:var(--serif); font-weight:500; font-size:clamp(32px,5.4vw,52px); line-height:1.1; color:#fff}
.issue-head p{margin:0; color:var(--soft); max-width:62ch}
.stories{list-style:none; margin:0; padding:0 var(--px) clamp(28px,4vw,44px); display:grid; gap:20px}
.story{background:#000; border:1px solid var(--rule); border-radius:10px; padding:clamp(20px,3vw,28px); scroll-margin-top:20px}
.story:target{border-color:var(--cyan); box-shadow:0 0 0 1px var(--cyan)}
.story h2{margin:0 0 10px; font-family:var(--serif); font-weight:500; font-size:clamp(22px,3vw,28px); line-height:1.2; color:#fff}
.story .tag{display:block; font-size:12px; font-weight:600; letter-spacing:.6px; text-transform:uppercase; color:var(--cyan); margin-bottom:8px}
.story p{margin:0 0 12px; color:var(--soft)}
.story .src{margin:0; font-size:13px; color:var(--muted)}
.story .src a{text-underline-offset:3px}
.archive{list-style:none; margin:0; padding:0 var(--px) clamp(28px,4vw,44px)}
.archive li{border-top:1px solid var(--rule); padding:18px 0}
.archive a{font-family:var(--serif); font-size:22px; color:#fff; text-decoration:none}
.archive a:hover{color:var(--cyan)}
.archive span{display:block; font-size:13px; color:var(--muted)}
.archive a.archive-sub{display:inline-block; margin-top:4px; font-family:var(--sans); font-size:13px; font-weight:600; color:var(--cyan); text-underline-offset:3px}
.archive a.archive-sub:hover{color:#4ff0f7}
.full-link{margin:16px 0 0!important}
.full-link a{display:inline-block; padding:10px 18px; border:1px solid #1d4a66; border-radius:8px; font-weight:600; text-decoration:none; color:var(--cyan)}
.full-link a:hover{border-color:var(--cyan); box-shadow:0 0 0 1px var(--cyan)}
.full-link-end{padding:0 var(--px) clamp(24px,4vw,36px); margin:0!important}
.status-tip{display:block; margin-top:4px; font-size:14px; font-weight:400; color:var(--soft)}
.signup.done .status-tip{font-size:15px}

/* Post-signup pages: /check-inbox and /welcome */
.note-page{padding:clamp(34px,6vw,64px) var(--px) clamp(26px,4vw,40px); max-width:760px}
.note-page .kicker{margin:0 0 12px; font-size:12px; font-weight:600; letter-spacing:.6px; text-transform:uppercase; color:var(--cyan)}
.note-page h1{margin:0 0 18px; font-family:var(--serif); font-weight:500; font-size:clamp(34px,5.6vw,56px); line-height:1.08; color:#fff; text-wrap:balance}
.note-page h1 em{color:var(--cyan)}
.note-page .lede{margin:0 0 16px; max-width:60ch}
.note-page p{color:var(--soft)}
.note-page .sig{margin:18px 0 0; font-family:var(--serif); font-size:20px; color:#fff}
.steps{list-style:none; counter-reset:s; margin:26px 0 0; padding:0; display:grid; gap:12px}
.steps li{counter-increment:s; position:relative; padding:16px 18px 16px 58px; background:#000; border:1px solid var(--rule); border-radius:10px; color:var(--soft)}
.steps li::before{content:counter(s); position:absolute; left:18px; top:15px; width:26px; height:26px; border-radius:50%; background:var(--cyan); color:#001417; font-weight:700; font-size:14px; line-height:26px; text-align:center}
.steps strong{color:#fff}
.box{margin:0 var(--px) clamp(24px,4vw,32px); padding:clamp(20px,3vw,26px); background:#000; border:1px solid #1d4a66; border-radius:12px}
.box h2{margin:0 0 8px; font-size:16px; font-weight:700; color:#fff}
.box p{margin:0 0 10px; color:var(--soft)}
.box p:last-child{margin-bottom:0}
.addr{display:inline-flex; align-items:center; gap:10px; flex-wrap:wrap; margin-top:4px}
.addr code{font-family:var(--sans); font-size:16px; font-weight:600; color:#fff; background:#03070c; border:1px solid #1d4a66; border-radius:6px; padding:6px 10px}
.btn-ghost{display:inline-flex; align-items:center; gap:6px; height:40px; padding:0 16px; font:inherit; font-size:14px; font-weight:600; color:var(--cyan);
  background:transparent; border:1px solid #1d4a66; border-radius:8px; cursor:pointer; text-decoration:none; transition:border-color .2s var(--ease), box-shadow .2s var(--ease)}
.btn-ghost:hover{border-color:var(--cyan); box-shadow:0 0 0 1px var(--cyan)}
.btn-row{display:flex; flex-wrap:wrap; gap:10px; margin-top:14px}
a.btn{display:inline-flex; align-items:center; text-decoration:none}
.actions{display:flex; flex-wrap:wrap; gap:12px; align-items:center; margin:26px 0 0}
.copied{font-size:13px; color:var(--cyan); min-height:1em}
.inside.tight{padding-top:clamp(26px,4vw,36px)}
@media (max-width:560px){ .actions a.btn{width:100%; justify-content:center} }