/* ======================================================================
   Prefixly — site styles. Self-contained, no third-party requests.
   Palette matched to the app icon: blue (#0F68CF) -> teal (#13A6A2)
   gradient, white shield, red "no-call" accent (#E23B36).
   ====================================================================== */

@font-face {
  font-family: "Bricolage";
  src: url("fonts/bricolage-800.woff2") format("woff2");
  font-weight: 800; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Hanken";
  src: url("fonts/hanken-400.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Hanken";
  src: url("fonts/hanken-600.woff2") format("woff2");
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "PlexMono";
  src: url("fonts/plex-mono-500.woff2") format("woff2");
  font-weight: 500; font-style: normal; font-display: swap;
}

:root {
  --ink:        #14171c;
  --ink-soft:   #525a64;
  --paper:      #f3f6f9;
  --card:       #ffffff;
  --line:       rgba(20, 23, 28, 0.10);
  --line-soft:  rgba(20, 23, 28, 0.06);

  --blue:       #0f68cf;   /* icon top */
  --teal:       #13a6a2;   /* icon bottom */
  --danger:     #e23b36;   /* icon prohibition ring */
  --brand:      #0f68cf;
  --brand-deep: #0a3f74;
  --brand-bright:#1fc6bf;  /* bright teal for accents on dark */
  --vault:      #06192c;   /* deep navy for dark surfaces */
  --grad:       linear-gradient(135deg, #1577de 0%, #13a6a2 100%);

  --font-display: "Bricolage", "Hanken", Georgia, serif;
  --font-body:    "Hanken", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    "PlexMono", ui-monospace, "SF Mono", Menlo, monospace;

  --radius: 18px;
  --radius-sm: 12px;
  --maxw: 1080px;
  --readw: 760px;
  --shadow: 0 1px 2px rgba(20,23,28,.04), 0 12px 32px -12px rgba(20,23,28,.16);
  --shadow-lg: 0 30px 80px -30px rgba(6,30,52,.45);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--paper);
  /* atmosphere: faint teal + blue glow */
  background-image:
    radial-gradient(900px 500px at 85% -8%, rgba(19,166,162,.16), transparent 60%),
    radial-gradient(700px 480px at -5% 8%, rgba(15,104,207,.12), transparent 55%);
  background-attachment: fixed;
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* subtle grain over everything */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ----------------------------------------------------------- masthead */
.masthead {
  position: sticky; top: 0; z-index: 50;
  background: rgba(6, 22, 40, 0.74);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.masthead .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand:hover { text-decoration: none; }
.logo-mark { width: 30px; height: 30px; display: block; filter: drop-shadow(0 4px 10px rgba(31,198,191,.4)); }
.brand .word {
  font-family: var(--font-display); font-weight: 800; font-size: 19px;
  color: #fff; letter-spacing: -0.01em;
}
.nav { display: flex; gap: 6px; align-items: center; }
.nav a {
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 500;
  letter-spacing: .04em; text-transform: uppercase;
  color: rgba(255,255,255,.66); padding: 8px 12px; border-radius: 999px;
  transition: color .2s, background .2s;
}
.nav a:hover { color: #fff; background: rgba(255,255,255,.08); text-decoration: none; }
.nav a.active { color: var(--brand-bright); }

/* ----------------------------------------------------------- eyebrow */
.eyebrow {
  font-family: var(--font-mono); font-weight: 500; font-size: 12.5px;
  letter-spacing: .22em; text-transform: uppercase; color: var(--brand);
  display: inline-flex; align-items: center; gap: 9px;
}
.eyebrow::before { content: ""; width: 22px; height: 1.5px; background: currentColor; opacity: .55; }
.eyebrow.on-dark { color: var(--brand-bright); }

/* ----------------------------------------------------------- hero */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(120% 130% at 80% 0%, #0f4a78 0%, var(--vault) 58%);
  color: #eef4f8;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.hero::after { /* dot grid */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: radial-gradient(rgba(255,255,255,.10) 1px, transparent 1.4px);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(80% 80% at 70% 10%, #000, transparent 75%);
          mask-image: radial-gradient(80% 80% at 70% 10%, #000, transparent 75%);
}
.hero .wrap { padding: 92px 24px 104px; max-width: 980px; }
.hero-shield {
  width: 78px; height: 78px; margin-bottom: 28px;
  filter: drop-shadow(0 12px 40px rgba(31,198,191,.45));
  animation: floaty 6s ease-in-out infinite;
}
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }

.hero h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2.5rem, 6vw, 4.4rem); line-height: 1.02;
  letter-spacing: -0.03em; margin: 18px 0 0; max-width: 16ch;
}
.hero h1 .accent { color: var(--brand-bright); }
.hero .lede {
  font-size: clamp(1.05rem, 2vw, 1.3rem); color: rgba(238,244,248,.74);
  max-width: 56ch; margin: 22px 0 0; line-height: 1.55;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 40px; }
.chip {
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .03em;
  color: rgba(238,244,248,.82); background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12); border-radius: 999px;
  padding: 8px 15px; display: inline-flex; align-items: center; gap: 8px;
}
.chip b { color: var(--brand-bright); font-weight: 500; }

/* staggered reveal */
.reveal { opacity: 0; transform: translateY(16px); animation: rise .8s cubic-bezier(.2,.7,.2,1) forwards; }
.reveal.d1 { animation-delay: .05s; }
.reveal.d2 { animation-delay: .15s; }
.reveal.d3 { animation-delay: .25s; }
.reveal.d4 { animation-delay: .35s; }
.reveal.d5 { animation-delay: .45s; }
@keyframes rise { to { opacity: 1; transform: none; } }

/* ----------------------------------------------------------- buttons */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-body); font-weight: 600; font-size: 16px;
  padding: 13px 24px; border-radius: 999px; cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-primary {
  background: var(--grad);
  color: #fff; box-shadow: 0 12px 26px -10px rgba(21,119,222,.65);
}
.btn-primary:hover { box-shadow: 0 18px 34px -10px rgba(19,166,162,.75); }
.btn-ghost {
  background: rgba(255,255,255,.06); color: #fff; border-color: rgba(255,255,255,.2);
}
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-arrow::after { content: "→"; transition: transform .2s; }
.btn:hover .btn-arrow::after, .btn-arrow:hover::after { transform: translateX(3px); }

/* ----------------------------------------------------------- sections */
section { padding: 84px 0; position: relative; }
.section-head { max-width: var(--readw); margin-bottom: 44px; }
.section-head h2 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(1.9rem, 4vw, 2.8rem); line-height: 1.08;
  letter-spacing: -0.025em; margin: 16px 0 0;
}
.section-head p { color: var(--ink-soft); font-size: 1.12rem; margin: 14px 0 0; }

/* page header (privacy / support) */
.page-head { padding: 64px 0 28px; }
.page-head h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2.2rem, 5vw, 3.4rem); letter-spacing: -0.03em;
  line-height: 1.05; margin: 16px 0 0;
}
.page-head .meta { color: var(--ink-soft); font-size: .95rem; margin-top: 14px; }
.page-head .meta b { color: var(--ink); font-weight: 600; }

/* ----------------------------------------------------------- steps */
.steps { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
.step {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px 30px; box-shadow: var(--shadow); position: relative;
  transition: transform .2s ease, box-shadow .2s ease;
}
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.step .num {
  font-family: var(--font-mono); font-weight: 500; font-size: 13px;
  color: var(--brand); letter-spacing: .1em;
}
.step h3 { font-family: var(--font-display); font-weight: 800; font-size: 1.25rem; letter-spacing: -.01em; margin: 14px 0 8px; }
.step p { color: var(--ink-soft); margin: 0; font-size: 1rem; }

/* ----------------------------------------------------------- privacy band */
.band {
  background: linear-gradient(135deg, var(--brand-deep), var(--vault));
  color: #e9f2f7; border-radius: var(--radius); padding: 52px 48px;
  position: relative; overflow: hidden; box-shadow: var(--shadow-lg);
}
.band::after {
  content: ""; position: absolute; right: -60px; bottom: -80px; width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(31,198,191,.30), transparent 65%);
}
.band h2 { font-family: var(--font-display); font-weight: 800; font-size: 1.9rem; letter-spacing: -.02em; margin: 14px 0 12px; max-width: 20ch; }
.band p { color: rgba(233,242,247,.78); max-width: 52ch; margin: 0; }
.band .facts { display: flex; flex-wrap: wrap; gap: 28px 48px; margin-top: 30px; }
.band .fact .k { font-family: var(--font-display); font-weight: 800; font-size: 1.7rem; color: #fff; }
.band .fact .v { font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--brand-bright); margin-top: 4px; }

/* ----------------------------------------------------------- prose */
.prose { max-width: var(--readw); }
.prose > section { padding: 0; margin-top: 40px; }
.prose h2 {
  font-family: var(--font-display); font-weight: 800; font-size: 1.4rem;
  letter-spacing: -.01em; margin: 0 0 10px; scroll-margin-top: 84px;
  display: flex; align-items: baseline; gap: 12px;
}
.prose h2 .idx { font-family: var(--font-mono); font-size: 12px; color: var(--brand); font-weight: 500; }
.prose p, .prose li { color: #2b313a; }
.prose p { margin: 0 0 14px; }
.prose ul { margin: 0 0 14px; padding-left: 22px; }
.prose li { margin: 7px 0; }
.prose strong { color: var(--ink); font-weight: 600; }
.callout {
  border-left: 3px solid var(--brand); background: rgba(15,104,207,.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px; margin: 0 0 14px; color: #243; font-size: .98rem;
}

/* table of contents */
.toc {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--card);
  padding: 22px 24px; box-shadow: var(--shadow); margin-bottom: 8px;
}
.toc .eyebrow { margin-bottom: 14px; }
.toc ol { margin: 0; padding-left: 0; list-style: none; counter-reset: t;
  columns: 2; column-gap: 32px; }
.toc li { counter-increment: t; margin: 7px 0; break-inside: avoid; }
.toc a { color: var(--ink-soft); font-size: .96rem; }
.toc a::before { content: counter(t, decimal-leading-zero) "  "; font-family: var(--font-mono); color: var(--brand); font-size: 12px; }
.toc a:hover { color: var(--brand); text-decoration: none; }

/* ----------------------------------------------------------- FAQ */
.faq { max-width: var(--readw); display: grid; gap: 12px; }
.faq details {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm);
  box-shadow: var(--shadow); overflow: hidden; transition: border-color .2s;
}
.faq details[open] { border-color: rgba(15,104,207,.35); }
.faq summary {
  list-style: none; cursor: pointer; padding: 20px 22px;
  font-family: var(--font-display); font-weight: 800; font-size: 1.08rem; letter-spacing: -.01em;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .plus { color: var(--brand); font-size: 1.4rem; line-height: 1; transition: transform .25s ease; flex: none; }
.faq details[open] summary .plus { transform: rotate(45deg); }
.faq .answer { padding: 0 22px 20px; color: #2b313a; }
.faq .answer p { margin: 0 0 10px; }
.faq .answer p:last-child { margin: 0; }

/* ----------------------------------------------------------- contact card */
.contact {
  max-width: var(--readw); margin-top: 40px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px;
}
.contact h3 { font-family: var(--font-display); font-weight: 800; font-size: 1.3rem; margin: 0 0 4px; }
.contact p { margin: 0; color: var(--ink-soft); }

/* ----------------------------------------------------------- setup flow */
.flow { max-width: var(--readw); margin-top: 8px; }
.flow-step { display: grid; grid-template-columns: 50px 1fr; gap: 20px; padding-bottom: 32px; position: relative; }
.flow-step:not(:last-child)::before {
  content: ""; position: absolute; left: 24px; top: 54px; bottom: 4px; width: 2px;
  background: linear-gradient(var(--line), rgba(20,23,28,0));
}
.flow-num {
  width: 50px; height: 50px; border-radius: 15px; background: var(--grad); color: #fff;
  font-family: var(--font-display); font-weight: 800; font-size: 1.2rem;
  display: grid; place-items: center; box-shadow: 0 10px 20px -8px rgba(21,119,222,.55);
  position: relative; z-index: 1;
}
.flow-step h3 { font-family: var(--font-display); font-weight: 800; font-size: 1.22rem; letter-spacing: -.01em; margin: 9px 0 7px; }
.flow-step p { margin: 0 0 8px; color: #2b313a; }
.flow-step p:last-child { margin-bottom: 0; }

/* settings breadcrumb path */
.path {
  display: flex; flex-wrap: wrap; align-items: center; gap: 9px;
  margin: 14px 0 4px; padding: 0;
}
.path .seg {
  font-family: var(--font-mono); font-size: 13px; color: var(--ink);
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 8px 13px; box-shadow: var(--shadow); white-space: nowrap;
}
.path .seg.is-target { background: var(--grad); color: #fff; border-color: transparent; box-shadow: 0 8px 16px -8px rgba(21,119,222,.5); }
.path .sep { color: var(--brand); font-weight: 700; }

/* toggle pill illustration */
.toggle {
  display: inline-flex; align-items: center; gap: 8px; vertical-align: middle;
  font-family: var(--font-mono); font-size: 12px;
}
.toggle .track { width: 40px; height: 24px; border-radius: 999px; background: #34c759; position: relative; box-shadow: inset 0 0 0 1px rgba(0,0,0,.06); }
.toggle .track::after { content: ""; position: absolute; top: 2px; right: 2px; width: 20px; height: 20px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.3); }

/* code/kbd */
.kbd, code {
  font-family: var(--font-mono); font-size: .86em;
  background: rgba(15,104,207,.08); color: var(--brand-deep);
  padding: 2px 7px; border-radius: 6px; border: 1px solid var(--line-soft);
}

/* ----------------------------------------------------------- footer */
.footer { background: var(--vault); color: rgba(238,244,248,.6); margin-top: 40px; }
.footer .wrap { padding: 54px 24px; display: flex; flex-wrap: wrap; gap: 28px; justify-content: space-between; align-items: flex-start; }
.footer .brand .word { font-size: 17px; }
.footer .tag { font-family: var(--font-mono); font-size: 12px; letter-spacing: .04em; margin-top: 12px; color: rgba(238,244,248,.45); max-width: 34ch; }
.footer-links { display: flex; gap: 26px; flex-wrap: wrap; }
.footer-links a { color: rgba(238,244,248,.66); font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .04em; text-transform: uppercase; }
.footer-links a:hover { color: var(--brand-bright); text-decoration: none; }
.footer .legal { width: 100%; border-top: 1px solid rgba(255,255,255,.08); padding-top: 22px; font-size: 13px; color: rgba(238,244,248,.4); }

/* ----------------------------------------------------------- responsive */
@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr; }
  .toc ol { columns: 1; }
  .nav a { padding: 8px 9px; }
  .hero .wrap { padding: 64px 24px 76px; }
  section { padding: 60px 0; }
  .band { padding: 36px 26px; }
}
@media (max-width: 520px) {
  body { font-size: 16px; }
  .brand .word { font-size: 17px; }
  .nav { gap: 0; }
}

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