/* ============================================================
   POSTAFF — Landing Page Design System
   Dark, premium, calm confidence. Orange = the agent acting.
   ============================================================ */

/* ---- Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---- Tokens ---- */
:root{
  --bg:#F4F4F2;
  --bg-2:#ECEDE9;          /* chapter-break sections, slightly lifted */
  --panel:#FFFFFF;
  --panel-2:#F1F2EF;
  --panel-3:#E4E5E1;
  --hairline:#E1E2DD;
  --hairline-soft:#EAEBE7;

  --ink:#15171C;
  --ink-2:#494E58;
  --ink-3:#7E838C;
  --ink-4:#B0B3B9;

  --accent:#111318;
  --accent-2:#383C44;
  --accent-ink:#F4F4F2;
  --accent-glow:rgba(17,19,24,.25);
  --accent-faint:rgba(17,19,24,.06);

  --blue:#5B7290;
  --blue-faint:rgba(91,114,144,.08);
  --green:#5E8468;

  --font-display:'Space Grotesk',-apple-system,system-ui,sans-serif;
  --font-body:'Inter',-apple-system,system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;

  --maxw:1200px;
  --pad:clamp(20px,5vw,64px);
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:28px;

  --ease:cubic-bezier(.22,.61,.36,1);
  --spring:cubic-bezier(.34,1.56,.64,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
::selection{background:var(--accent);color:var(--accent-ink)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font-family:inherit;cursor:pointer;border:none;background:none}

/* ---- Layout ---- */
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
section{position:relative}
.section-pad{padding-block:clamp(80px,11vw,150px)}

/* ---- Type ---- */
.display{font-family:var(--font-display);font-weight:600;letter-spacing:-.03em;line-height:1.02}
h1,h2,h3{font-family:var(--font-display);font-weight:600;letter-spacing:-.025em;line-height:1.04}
.eyebrow{
  font-family:var(--font-mono);
  font-size:12.5px;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--ink-3);
}
.eyebrow .dot{color:var(--accent)}
.h1{font-size:clamp(40px,6.4vw,82px)}
.h2{font-size:clamp(32px,4.6vw,60px)}
.h3{font-size:clamp(24px,3vw,36px)}
.lead{font-size:clamp(17px,1.5vw,21px);color:var(--ink-2);line-height:1.55;max-width:62ch}
.muted{color:var(--ink-3)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.accent{color:var(--accent)}
.balance{text-wrap:balance}
.pretty{text-wrap:pretty}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-body);font-weight:600;font-size:15.5px;
  padding:14px 22px;border-radius:12px;
  transition:transform .25s var(--spring),background .2s,border-color .2s,box-shadow .3s;
  white-space:nowrap;
}
.btn:active{transform:scale(.97)}
.btn-primary{
  background:var(--accent);color:var(--accent-ink);
  box-shadow:0 1px 0 rgba(255,255,255,.18) inset,0 10px 30px -10px var(--accent-glow);
}
.btn-primary:hover{background:var(--accent-2);transform:translateY(-2px);box-shadow:0 1px 0 rgba(255,255,255,.2) inset,0 16px 40px -12px var(--accent-glow)}
.btn-ghost{
  background:rgba(0,0,0,.03);color:var(--ink);
  border:1px solid var(--hairline);
}
.btn-ghost:hover{background:rgba(0,0,0,.05);border-color:var(--ink-3)}
.btn-lg{padding:17px 28px;font-size:16.5px;border-radius:13px}

/* ---- Surfaces ---- */
.panel{
  background:var(--panel);
  border:1px solid var(--hairline);
  border-radius:var(--radius);
}
.hairline{border-top:1px solid var(--hairline)}

/* ============================================================
   CHAT — the recurring motif. Used in hero, working day, etc.
   ============================================================ */
.phone{
  position:relative;width:100%;max-width:380px;
  background:#0E1119;
  border:1px solid var(--hairline);
  border-radius:34px;
  padding:14px;
  box-shadow:0 40px 80px -30px rgba(15,17,20,.16),0 0 0 1px rgba(255,255,255,.02) inset;
}
.phone-screen{
  background:#0A0D14;
  border-radius:24px;
  overflow:hidden;
  border:1px solid var(--hairline-soft);
}
.chat-head{
  display:flex;align-items:center;gap:11px;
  padding:14px 16px;
  border-bottom:1px solid var(--hairline-soft);
  background:rgba(0,0,0,.015);
}
.chat-head .title{font-weight:600;font-size:14.5px}
.chat-head .sub{font-size:11.5px;color:var(--ink-3)}
.live-badge{
  margin-left:auto;display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:9.5px;letter-spacing:.12em;
  color:var(--ink-3);text-transform:uppercase;
  padding:4px 8px;border:1px solid var(--hairline);border-radius:20px;
}
.live-badge .pulse{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(94,132,104,.45);animation:livepulse 2s infinite}
@keyframes livepulse{0%{box-shadow:0 0 0 0 rgba(94,132,104,.4)}70%{box-shadow:0 0 0 6px rgba(94,132,104,0)}100%{box-shadow:0 0 0 0 rgba(94,132,104,0)}}

.chat-body{
  padding:16px 14px;display:flex;flex-direction:column;gap:11px;
  min-height:340px;
}
.msg{
  max-width:80%;font-size:13.5px;line-height:1.45;
  padding:9px 13px;border-radius:16px;
  opacity:0;transform:translateY(8px) scale(.96);
  transition:opacity .3s var(--ease),transform .35s var(--spring);
}
.msg.in{opacity:1;transform:none}
.msg.them{
  align-self:flex-start;background:var(--panel-2);color:var(--ink);
  border:1px solid var(--hairline);border-bottom-left-radius:5px;
}
.msg.agent{
  align-self:flex-start;
  background:#111318;
  color:#F5F6F8;border:1px solid rgba(17,19,24,.45);
  border-bottom-left-radius:5px;
  box-shadow:0 6px 18px -8px var(--accent-glow);
}
.msg .who{display:flex;align-items:center;gap:6px;font-size:11px;font-weight:600;margin-bottom:3px}
.msg.agent .who{color:var(--accent-2)}
.msg.them .who{color:var(--ink-3)}
.av{width:17px;height:17px;border-radius:50%;display:grid;place-items:center;font-size:9px;font-weight:700;flex:none}
.av.lukas{background:#111318;color:#FFFFFF}
.av.user{background:var(--panel-3);color:var(--ink-2)}
.msg .cmd{font-family:var(--font-mono);font-size:12px;background:rgba(255,255,255,.16);padding:1px 5px;border-radius:5px}

/* typing indicator */
.typing{align-self:flex-start;display:flex;gap:4px;padding:11px 14px;background:var(--panel-2);border:1px solid var(--hairline);border-radius:16px;border-bottom-left-radius:5px}
.typing span{width:6px;height:6px;border-radius:50%;background:var(--ink-3);animation:typed 1.2s infinite}
.typing span:nth-child(2){animation-delay:.18s}
.typing span:nth-child(3){animation-delay:.36s}
@keyframes typed{0%,60%,100%{transform:translateY(0);opacity:.45}30%{transform:translateY(-4px);opacity:1}}

/* post card inside chat */
.post-card{
  border:1px solid var(--hairline);border-radius:14px;overflow:hidden;
  background:var(--panel);max-width:88%;align-self:flex-start;
  opacity:0;transform:translateY(10px) scale(.97);
  transition:opacity .4s var(--ease),transform .5s var(--spring);
}
.post-card.in{opacity:1;transform:none}
.post-card image-slot,.post-card .post-img{width:100%;height:150px;display:block}
.post-card .post-meta{padding:9px 11px}
.post-card .cap{font-size:12px;color:var(--ink-2);line-height:1.4}
.post-card .tags{font-size:11px;color:var(--blue);margin-top:4px;font-family:var(--font-mono)}
.post-card .sched{display:flex;align-items:center;gap:6px;margin-top:7px;font-size:11px;color:var(--ink-3);font-family:var(--font-mono)}

/* ---- Reveal-on-scroll primitive ---- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.06s}
.reveal[data-d="2"]{transition-delay:.12s}
.reveal[data-d="3"]{transition-delay:.18s}
.reveal[data-d="4"]{transition-delay:.24s}
.reveal[data-d="5"]{transition-delay:.30s}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal,.msg,.post-card{opacity:1!important;transform:none!important}
  html{scroll-behavior:auto}
}