/* signal.css: the Signal design system for perfecttakeoff.com.
   Single source of truth. No page defines its own :root, color family, font
   family, radius or shadow; it links this file and keeps only layout rules.
   Fonts are self-hosted (fonts/*.css), never Google. */

:root{
  /* surfaces */
  --bg:#0c0d0c; --bg2:#111312; --panel:rgba(17,19,18,.78);
  --tray:rgba(230,232,227,.025);
  --line:#262924; --line2:#3a3d37;
  /* ink */
  --ink:#e6e8e3; --ink2:#9ea39b; --ink3:#6b6f68;
  /* the one orange, and green for passed only */
  --acc:#ff6b1a; --acc2:#ff8a4c; --accbg:rgba(255,107,26,.12); --accline:rgba(255,107,26,.45);
  --ok:#8fe27a; --okbg:rgba(143,226,122,.08);
  /* type */
  --display:"Big Shoulders Display","Bricolage Grotesque",system-ui,sans-serif;
  --font:"Bricolage Grotesque",system-ui,-apple-system,sans-serif;
  --mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  /* shape and motion */
  --r:12px; --r2:20px; --pill:999px;
  --shadow-acc:0 14px 36px -12px rgba(255,107,26,.6);
  --ease:cubic-bezier(.32,.72,0,1); --t:450ms; --t-in:800ms;
  /* layout */
  --maxw:1120px; --readw:760px; --nav-h:60px;

  /* Legacy names. The page stylesheets were written against these; they now
     resolve to Signal values here so layout rules can stay untouched. Do not
     add new uses: write --ink, --line, --acc etc. */
  --bg-tint:var(--bg2); --panel-2:rgba(230,232,227,.05); --panel-3:rgba(230,232,227,.08);
  --text:var(--ink); --text-soft:var(--ink2); --muted:var(--ink2); --text2:var(--ink2); --text3:var(--ink2);
  --border:var(--line); --border-strong:var(--line2);
  --accent:var(--acc); --accent-bright:var(--ink); --accent-dark:var(--acc);
  --accent-soft:var(--accbg); --accent-line:var(--accline);
  --green:var(--ok); --green-soft:var(--okbg); --glow-green:inset 0 0 0 1px rgba(143,226,122,.28);
  --blueprint:var(--ink2); --blueprint-soft:var(--panel-2); --blueprint-line:var(--line2);
  --yellow:var(--acc2);
  --shadow:0 0 0 0 transparent; --shadow-lg:0 0 0 0 transparent; --glow-orange:var(--shadow-acc);
  --radius-sm:var(--r); --radius:var(--r); --radius-lg:var(--r2);
  --ease-out:var(--ease);
}

/* ── base ─────────────────────────────────────────────────────────────── */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  background:
    linear-gradient(var(--line) 1px,transparent 1px) 0 0/32px 32px,
    linear-gradient(90deg,var(--line) 1px,transparent 1px) 0 0/32px 32px,
    var(--bg);
}
a{color:inherit;text-decoration:none}
::selection{background:var(--accbg);color:var(--ink)}
h1,h2{font-family:var(--display);font-weight:700;letter-spacing:.005em;line-height:1;text-wrap:balance;color:var(--ink)}
h3,h4{font-family:var(--font);font-weight:600;letter-spacing:-.01em;color:var(--ink)}
h1 em,h2 em{font-style:normal;color:var(--acc)}  /* Big Shoulders has no italic: upright, in the accent */
b,strong{font-weight:600}
code,kbd,.mono,.num,time{font-family:var(--mono);font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--acc2);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--ink2);letter-spacing:0;text-transform:none}
.eyebrow::before{content:none}
.section-title{font-size:clamp(40px,5.4vw,68px)}
.section-sub,.section-dek{color:var(--ink2)}

/* Embers sit behind everything; content stacks above them. */
#ptEmbers{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;pointer-events:none;opacity:0;transition:opacity 900ms ease}
#ptEmbers[data-active="true"]{opacity:.72}
body > section,body > main,body > footer,body > div,body > article,body > nav{position:relative;z-index:1}

/* ── header ───────────────────────────────────────────────────────────── */
header.nav{position:sticky;top:0;z-index:50;background:rgba(12,13,12,.72);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid var(--line2)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:var(--nav-h)}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand img{height:28px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a:not(.btn){display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:var(--pill);
  font-size:14px;font-weight:500;color:var(--ink2);
  background:rgba(17,19,18,.7);box-shadow:inset 0 0 0 1px var(--line2),inset 0 1px 0 rgba(255,255,255,.05);
  transition:background var(--t) var(--ease),color var(--t) var(--ease),transform 120ms var(--ease)}
.nav-links a:not(.btn):hover{background:rgba(230,232,227,.08);color:var(--ink)}
.nav-links a:not(.btn):active{transform:scale(.98)}
.nav-links a[aria-current="page"]{color:var(--ink);box-shadow:inset 0 0 0 1px var(--accline)}
.nav-links .btn{margin-left:6px}
/* one orange pill per view: the header pill steps aside while another primary is on screen */
header.nav .btn-primary{max-width:360px;overflow:hidden;
  transition:max-width var(--t) var(--ease),opacity var(--t) var(--ease),padding var(--t) var(--ease),margin var(--t) var(--ease),background var(--t) var(--ease)}
header.nav.is-quiet .btn-primary{max-width:0;opacity:0;padding:0;margin:0;pointer-events:none;visibility:hidden}

/* ── buttons ──────────────────────────────────────────────────────────── */
.btn{appearance:none;border:0;cursor:pointer;font:inherit;display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:44px;padding:0 20px;border-radius:var(--pill);font-size:15px;font-weight:500;letter-spacing:0;white-space:nowrap;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),box-shadow var(--t) var(--ease),transform 120ms var(--ease)}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--acc);color:#0c0d0c;font-weight:600;padding:0 6px 0 20px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.3),var(--shadow-acc)}
.btn-primary:hover{background:var(--acc2);color:#0c0d0c}
/* trailing arrow in its own 28px orb */
.btn-primary::after{content:"";flex:0 0 28px;height:28px;border-radius:50%;
  background:rgba(0,0,0,.16) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230c0d0c' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14M13 6l6 6-6 6'/%3E%3C/svg%3E") center/13px no-repeat;
  transition:transform var(--t) var(--ease)}
.btn-primary:hover::after{transform:translateX(2px)}
.btn-ghost,.btn-try{background:rgba(17,19,18,.7);color:var(--ink);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:inset 0 0 0 1px var(--line2),inset 0 1px 0 rgba(255,255,255,.05)}
.btn-ghost:hover,.btn-try:hover{background:rgba(230,232,227,.08);color:var(--ink)}
.btn-lg{height:48px;font-size:16px}
.nav-links .btn{height:40px;font-size:14px}
/* primary label split: action, then the offer, lighter */
.cta-split{white-space:nowrap}
.cta-split .cta-free{font-weight:500;margin-left:2px;padding-left:12px;border-left:1px solid rgba(12,13,12,.3);color:rgba(12,13,12,.8)}
.btn-ghost.cta-split .cta-free{color:var(--ink2);border-left-color:var(--line2)}

/* ── panels: outer tray around an inner core ─────────────────────────── */
.shell{background:var(--tray);box-shadow:inset 0 0 0 1px var(--line);border-radius:var(--r2);padding:6px}
.core{background:var(--panel);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-radius:calc(var(--r2) - 6px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),inset 0 0 0 1px rgba(255,255,255,.04)}
.shell.keyline{box-shadow:inset 0 0 0 1px var(--accline)}

/* chips, code tiles, status */
.chip{display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px 0 6px;border-radius:var(--pill);
  font-size:13.5px;font-weight:500;color:var(--ink);background:var(--panel);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:inset 0 0 0 1px var(--line2)}
.chip .n,.code{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:500}
.chip .n{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:24px;padding:0 6px;border-radius:var(--pill);
  background:rgba(230,232,227,.06);font-size:12px;color:var(--ink)}
.chip.ok .n{background:var(--okbg);color:var(--ok)}
.code{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:var(--r);
  font-size:11px;background:rgba(230,232,227,.06);color:var(--ink2)}
.code.on{background:var(--accbg);color:var(--acc2);box-shadow:inset 0 0 0 1px rgba(255,107,26,.35)}
.ok-pill{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;border-radius:var(--pill);font-size:13px;font-weight:500;
  background:var(--okbg);color:var(--ok);box-shadow:inset 0 0 0 1px rgba(143,226,122,.28)}

/* ── forms ────────────────────────────────────────────────────────────── */
.field{display:flex;flex-direction:column;gap:7px;text-align:left}
.label{font-size:13px;font-weight:500;color:var(--ink2);display:flex;justify-content:space-between;gap:12px}
.label .req{color:var(--acc2)}
.label output,.label .val{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--ink)}
input[type=email],input[type=text],input[type=search],textarea,select{
  font:inherit;font-size:15px;color:var(--ink);height:44px;padding:0 14px;border:0;border-radius:var(--r);
  background:rgba(230,232,227,.05);box-shadow:inset 0 0 0 1px var(--line2);transition:box-shadow var(--t) var(--ease)}
input::placeholder{color:var(--ink3)}
input:focus-visible,textarea:focus-visible,select:focus-visible{outline:none;box-shadow:inset 0 0 0 1px var(--acc2),0 0 0 3px var(--accbg)}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:28px;background:transparent;cursor:pointer;--p:50%}
input[type=range]::-webkit-slider-runnable-track{height:4px;border-radius:var(--pill);
  background:linear-gradient(90deg,var(--acc) var(--p),var(--line2) var(--p))}
input[type=range]::-moz-range-track{height:4px;border-radius:var(--pill);background:var(--line2)}
input[type=range]::-moz-range-progress{height:4px;border-radius:var(--pill);background:var(--acc)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;margin-top:-8px;border-radius:50%;border:0;
  background:var(--ink);box-shadow:0 0 0 4px var(--acc)}
input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;border:0;background:var(--ink);box-shadow:0 0 0 4px var(--acc)}
input[type=range]:active::-webkit-slider-thumb{transform:scale(.98)}
input[type=range]:focus-visible{outline:2px solid var(--acc2);outline-offset:4px}

/* ── light: the orange light source and the night skyline ───────────── */
.glow{position:absolute;left:50%;top:-10%;width:min(1100px,140vw);height:640px;transform:translateX(-50%);pointer-events:none;z-index:0;
  background:radial-gradient(closest-side,rgba(255,107,26,.16),rgba(255,107,26,.05) 55%,rgba(255,107,26,0))}
.sky{position:absolute;left:0;right:0;bottom:0;height:min(460px,60vw);pointer-events:none;z-index:0;
  background:url(skyline.385f5a58.svg) center bottom/cover no-repeat}
.glow ~ .wrap,.sky ~ .wrap{position:relative;z-index:1}

/* ── marquee ──────────────────────────────────────────────────────────── */
.marq{overflow:hidden;border-block:1px solid var(--line);background:rgba(12,13,12,.6);padding:14px 0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marq-track{display:flex;gap:12px;width:max-content;animation:marq 48s linear infinite}
.marq .mi{display:inline-flex;align-items:center;gap:10px;font-size:14px;color:var(--ink2);white-space:nowrap;padding-right:22px}
.marq .mi .code{width:auto;min-width:32px;padding:0 8px}
@keyframes marq{to{transform:translateX(-50%)}}

/* ── closing band ─────────────────────────────────────────────────────── */
.band{position:relative;overflow:hidden;text-align:center;padding:120px 0 330px;border-top:1px solid var(--line)}
.band .sky{height:min(360px,60vw)}
/* the drawing is 1600 x 420; past 1372 px wide, cover cropped its top (the crane): the box takes the drawing's own shape */
@media (min-width:1372px){.band{padding-bottom:calc(26.25vw - 30px)}.band .sky{height:26.25vw;background-size:100% auto}}
.band h2{font-size:clamp(44px,6vw,80px)}

/* ── pinned story (layout lives on the page; state lives here) ───────── */
.story [data-pane]{opacity:0;transform:translateY(10px) scale(.985);transition:opacity 200ms var(--ease),transform 200ms var(--ease)}
.story[data-step="1"] [data-pane="1"],.story[data-step="2"] [data-pane="2"],.story[data-step="3"] [data-pane="3"]{opacity:1;transform:none;transition-duration:var(--t-in);transition-delay:160ms}
.story [data-card]{transition:box-shadow var(--t) var(--ease),opacity var(--t) var(--ease)}
.story[data-step="1"] [data-card="1"],.story[data-step="2"] [data-card="2"],.story[data-step="3"] [data-card="3"]{box-shadow:inset 0 0 0 1px var(--accline)}
@supports (animation-timeline:view()){
  .story [data-card]{animation:story-in linear both;animation-timeline:view();animation-range:entry 0% cover 40%}
  @keyframes story-in{from{opacity:.35;transform:translateY(24px)}to{opacity:1;transform:none}}
}

/* ── entry motion ─────────────────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(12px);transition:opacity var(--t-in) var(--ease),transform var(--t-in) var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ── footer ───────────────────────────────────────────────────────────── */
footer{border-top:1px solid var(--line);background:rgba(12,13,12,.82);padding:44px 0 56px}
.foot-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:14px}
.foot-links a{color:var(--ink2);transition:color var(--t) var(--ease)}
.foot-links a:hover{color:var(--ink)}
.foot-fine{margin-top:24px;font-size:12.5px;color:var(--ink2);max-width:760px;line-height:1.65}

/* ── reduced motion: everything lands in its final state ─────────────── */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  #ptEmbers{display:none}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal,.story [data-pane],.story [data-card]{opacity:1;transform:none}
  .marq-track{transform:none}
}

@media (max-width:420px){
  .brand img{height:22px}
  .btn{padding:0 16px}
  .btn-primary{padding:0 5px 0 16px}
}

/* thanks / 404: the header's way home is a ghost pill */
.nav-back{display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:var(--pill);font-size:14px;font-weight:500;color:var(--ink2);
  background:rgba(17,19,18,.7);box-shadow:inset 0 0 0 1px var(--line2);transition:background var(--t) var(--ease),color var(--t) var(--ease),transform 120ms var(--ease)}
.nav-back:hover{background:rgba(230,232,227,.08);color:var(--ink)}
.nav-back:active{transform:scale(.98)}
/* the header pill keeps the action, drops the offer, on a phone */
@media (max-width:480px){header.nav .cta-free{display:none}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}