/*
  Purpose: the look shared by every page of the site, so the four pages read as one.

  Responsibilities:
  - Colours, type, buttons and the header with its page tabs.
  - The footer, and the prose column used by the privacy and terms pages.
  - The app window frame, scene rows and perk cards the home and features pages share.

  Does not do: page-specific layouts such as the hero; each page keeps those in its own <style>.

  Invariants:
  - Colours come from Fred (graphics/logo/fred/body/body_chonk.svg).
  - No third-party request: no web font, no CDN.
*/
:root{
  --night:#030a9c; --ink:#0d14d0; --sky:#3171ea; --paper:#e9f0fb;
  --bg:var(--paper); --soft:#b8cdfb; --card:var(--paper);
  --text:var(--night); --muted:#3a4a9e; --line:#a9c0f5;
  --shadow:0 10px 30px rgba(3,10,156,.14);
  --shadow-lg:0 30px 70px rgba(3,10,156,.24);
  --header:66px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header)}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;
}
a{color:var(--ink)}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

header{
  position:sticky;top:0;z-index:20;
  background:rgba(233,240,251,.78);backdrop-filter:blur(14px) saturate(1.4);
  border-bottom:1px solid var(--line);
}
nav{display:flex;align-items:center;gap:28px;height:var(--header)}
.brand{display:flex;align-items:baseline;gap:3px;font-weight:800;font-size:1.55rem;color:var(--ink);text-decoration:none;flex-shrink:0}
.brand img{width:38px;height:38px;position:relative;top:5px}
.brand .m{color:var(--sky)}
nav .tabs{display:flex;align-items:center;gap:4px;margin-left:auto}
nav .tabs a{
  position:relative;color:var(--muted);text-decoration:none;font-size:.95rem;font-weight:600;
  padding:8px 14px;border-radius:999px;white-space:nowrap;transition:color .15s ease,background .15s ease;
}
nav .tabs a:hover{color:var(--ink);background:var(--soft)}
nav .tabs a[aria-current="page"]{color:var(--ink)}
nav .tabs a[aria-current="page"]::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-12px;height:3px;border-radius:3px;background:var(--sky);
}
nav .tabs a.tab-download{margin-left:10px;background:linear-gradient(135deg,var(--ink),var(--night));color:var(--paper)}
nav .tabs a.tab-download:hover{background:linear-gradient(135deg,var(--sky),var(--ink));color:var(--paper);transform:translateY(-1px)}
nav .tabs a.tab-download[aria-current="page"]::after{display:none}
/* The flight bar: a small Fred crosses it as the page scrolls. */
.flight{position:absolute;left:0;right:0;bottom:-1px;height:3px;pointer-events:none}
.flight .trail{height:100%;width:calc(var(--scroll,0)*100%);background:linear-gradient(90deg,var(--sky),var(--night))}
/* He takes off with the first scroll; parked at the corner he read as a glitch. */
.flight img{position:absolute;bottom:-9px;left:calc(var(--scroll,0)*(100% - 26px));width:24px;height:23px;opacity:calc(var(--scroll,0)*40)}

.btn{
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;border:0;font:inherit;
  padding:14px 26px;border-radius:999px;text-decoration:none;font-weight:700;
  transition:transform .15s ease,box-shadow .15s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--ink),var(--night));color:var(--paper);box-shadow:0 8px 24px rgba(3,10,156,.35)}
.btn-primary:hover{transform:translateY(-2px);background:linear-gradient(135deg,var(--sky),var(--ink));box-shadow:0 12px 32px rgba(3,10,156,.45)}


.kicker{display:block;font-size:.8rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);margin-bottom:12px}

footer{position:relative;margin-top:60px;padding:60px 0 52px;text-align:center;color:var(--muted);font-size:.9rem;border-top:2px solid var(--line)}
footer .brand{justify-content:center;margin-bottom:12px}
footer a{color:var(--muted)} footer a:hover{color:var(--ink)}
footer .links{margin-top:8px} footer .links a{margin:0 9px}
footer .perched{position:absolute;top:-55px;left:12%;width:60px;height:57px}

section{padding:100px 0;position:relative}
section h2{font-size:clamp(2rem,4.6vw,3.3rem);letter-spacing:-.03em;line-height:1.08;text-align:center}
section p.lead{text-align:center;color:var(--muted);max-width:620px;margin:16px auto 54px;font-size:1.14rem}
section .kicker{text-align:center}

/* A window frame around real app media; the video fades in over its poster once it plays. */
.win{position:relative;margin:0;border-radius:14px;overflow:hidden;background:#f4f6fb;border:1px solid rgba(3,10,156,.14);
  box-shadow:0 40px 90px -20px rgba(2,7,102,.55),0 0 0 1px rgba(3,10,156,.08)}
.win .bar{display:flex;gap:7px;padding:11px 14px;background:#e7eaf3}
.win .bar i{width:11px;height:11px;border-radius:50%;background:#c3c9db}
.win .screen{position:relative;aspect-ratio:900/640}
.win picture{display:contents}
.win img,.win video{display:block;width:100%;height:100%;object-fit:cover}
.win video{position:absolute;inset:0;opacity:0;transition:opacity .5s}
.win .playing video{opacity:1}

.scenes{display:flex;flex-direction:column;gap:30px}
.scene{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.scene:nth-child(even) .copy{order:2}
.scene h3{font-size:clamp(1.7rem,3.4vw,2.6rem);letter-spacing:-.03em;line-height:1.08}
.scene p{color:var(--muted);font-size:1.12rem;margin-top:14px;max-width:440px}
.scene .kicker{text-align:left}

.perks{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:90px}
.perk{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow)}
.perk h3{font-size:1.15rem;margin-bottom:6px}
.perk p{color:var(--muted)}

.closing{text-align:center;padding:110px 0 60px}
.closing p{color:var(--muted);margin:12px 0 28px;font-size:1.1rem}

/* Prose column for the legal pages: long text is only readable at about 70 characters a line. */
.doc{max-width:760px;margin:0 auto;padding:64px 24px 40px}
.doc h1{font-size:clamp(2rem,4.5vw,2.8rem);letter-spacing:-.02em;line-height:1.15}
.doc .updated{color:var(--muted);font-size:.9rem;margin-top:10px}
.doc h2{font-size:1.35rem;margin:44px 0 12px;letter-spacing:-.01em}
.doc h3{font-size:1.05rem;margin:26px 0 8px}
.doc p{margin-bottom:14px}
.doc ul{margin:0 0 14px 22px}
.doc li{margin-bottom:8px}
.doc code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.85em;
  background:var(--soft);border:1px solid var(--line);border-radius:6px;padding:1px 5px;
}
.callout{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px 28px;box-shadow:var(--shadow);margin:28px 0}
.callout h2{margin-top:0}

@media (max-width:860px){
  .scene{grid-template-columns:1fr;gap:28px}
  .scene:nth-child(even) .copy{order:0}
  .perks{grid-template-columns:1fr}
}
@media (max-width:760px){
  nav{gap:12px}
  /* Hidden from sight only: the name stays the link's accessible text. */
  .brand>span{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
  nav .tabs{overflow-x:auto;scrollbar-width:none}
  nav .tabs a{padding:8px 7px;font-size:.84rem}
  nav .tabs a.tab-download{margin-left:4px;padding:8px 12px}
  nav .tabs a[aria-current="page"]::after{bottom:-2px}
  section{padding:70px 0}
  /* A phone gets a crop of the pane where the action is, cut from the same desktop capture, so the text stays readable. */
  .win .screen{aspect-ratio:520/640}
  .win .bar{padding:8px 10px} .win .bar i{width:8px;height:8px}
}
/* Five tabs and the Download pill only fit a phone once the brand is just Fred's head. */
@media (max-width:480px){
  nav{gap:6px}
  nav .tabs{gap:0}
  nav .tabs a{padding:8px 5px;font-size:.8rem}
  nav .tabs a.tab-download{margin-left:2px;padding:8px 10px}
  nav .tabs a[href="/features"]{width:min-content;white-space:normal;line-height:1.05;text-align:center}
}
@media (prefers-reduced-motion:no-preference){
  .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
  .reveal.in{opacity:1;transform:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}