/* KeystonePal public site. One stylesheet for every page; colours taken from
   docs/website-concept/01-home-hero.png. Phone first: 360 px up to 1440 px.
   No framework, no build step: this file is uploaded as it is. */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("/fonts/inter-latin-var.woff2") format("woff2");
}

:root {
  --bg: #061225;
  --bg-deep: #040F23;
  --bg-2: #0A1A33;
  --card: #0B1F3D;
  --card-hi: #112E59;
  --line: #14243A;
  --line-hi: #1E3A63;
  --accent: #47C4FF;
  --blue: #0266C5;
  --blue-hi: #1C7FDD;
  --white: #F4F7FF;
  --body: #BDCBE1;
  --nav: #C5D2E7;
  --muted: #8FA0B6;
  --mint: #3EE5AF;
  --radius: 14px;
  --radius-sm: 8px;
  --wrap: 1300px;
  --gutter: 20px;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  font-family: "Inter", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg, picture { display: block; max-width: 100%; height: auto; }
[hidden] { display: none !important; }
a { color: var(--accent); }
a:hover { color: var(--white); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3, h4 { color: var(--white); line-height: 1.15; letter-spacing: -0.02em; text-wrap: balance; }
.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;
}
.skip {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--blue); color: #fff; padding: 10px 14px; border-radius: var(--radius-sm);
  text-decoration: none; font-weight: 600;
}
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
@media (min-width: 768px) { :root { --gutter: 32px; } }
@media (min-width: 1280px) { :root { --gutter: 40px; } }

/* ---------- header and nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(6, 18, 37, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 72px;
}
.logo { display: block; flex: 0 0 auto; }
.logo img { width: 84px; height: auto; }
.nav-links { display: none; align-items: center; gap: 28px; }
.nav-links a {
  color: var(--nav); text-decoration: none; font-size: 0.94rem; font-weight: 500;
}
.nav-links a:hover, .menu nav a:hover { color: var(--white); }
body[data-page="features"] a[data-nav="features"],
body[data-page="phone"] a[data-nav="phone"],
body[data-page="trade-packs"] a[data-nav="trade-packs"],
body[data-page="field-office"] a[data-nav="field-office"],
body[data-page="your-data"] a[data-nav="your-data"] { color: var(--accent); }
.nav-cta { display: none; }
/* Office-first 2.1: an owner who already has an account signs in on Office. */
.nav-signin {
  display: none; color: var(--nav); text-decoration: none;
  font-size: 0.94rem; font-weight: 600;
}
.nav-signin:hover { color: var(--white); }
.menu { position: relative; }
.menu summary {
  list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: 8px;
  color: var(--white); font-weight: 600; font-size: 0.95rem;
  padding: 10px 14px; border: 1px solid var(--line-hi); border-radius: var(--radius-sm);
  background: var(--bg-2);
}
.menu summary::-webkit-details-marker { display: none; }
.menu nav {
  position: absolute; right: 0; top: calc(100% + 10px); width: min(300px, calc(100vw - 2 * var(--gutter)));
  display: grid; gap: 2px; padding: 10px;
  background: var(--bg-2); border: 1px solid var(--line-hi); border-radius: var(--radius);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}
.menu nav a {
  color: var(--nav); text-decoration: none; padding: 11px 12px; border-radius: var(--radius-sm);
  font-weight: 500;
}
.menu nav a.btn { margin-top: 6px; justify-content: center; color: #fff; }
@media (min-width: 1000px) {
  .site-header .wrap { min-height: 106px; }
  .logo img { width: 96px; }
  .nav-links { display: flex; margin-left: auto; }
  /* The free space either side of the links, so Sign in sits by the button. */
  .nav-signin { display: inline-flex; margin-left: auto; }
  .nav-cta { display: inline-flex; }
  .menu { display: none; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 48px; padding: 12px 20px; border-radius: var(--radius-sm);
  font: inherit; font-weight: 600; font-size: 1rem; line-height: 1.2;
  text-decoration: none; cursor: pointer; border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn svg { width: 18px; height: 18px; flex: 0 0 auto; }
.btn-primary { background: var(--blue); border-color: #1B78D2; color: #fff; }
.btn-primary:hover { background: var(--blue-hi); color: #fff; }
.btn-ghost { background: #09192F; border-color: #2B4466; color: var(--white); }
.btn-ghost:hover { border-color: var(--accent); color: #fff; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- type ---------- */
.eyebrow {
  color: var(--accent); font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
}
.display {
  font-weight: 700; letter-spacing: -0.035em; line-height: 1.04;
  font-size: clamp(2.6rem, 9.5vw, 4.9rem);
}
.display .hl, h2 .hl { color: var(--accent); display: block; }
.lead { font-size: clamp(1.05rem, 2.6vw, 1.22rem); color: var(--body); line-height: 1.7; max-width: 560px; }
.section-title { font-size: clamp(1.8rem, 5vw, 2.6rem); font-weight: 700; }
.muted { color: var(--muted); }
.small { font-size: 0.88rem; }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(60% 70% at 78% 40%, rgba(3, 59, 110, 0.55), transparent 70%),
    radial-gradient(50% 60% at 10% 0%, rgba(10, 40, 80, 0.5), transparent 70%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 60%, #050D19 100%);
}
.hero::before {
  /* the faint blueprint lines in the corner of the mock */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0.35;
  background-image:
    linear-gradient(rgba(71, 196, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(71, 196, 255, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(40% 50% at 0% 10%, #000, transparent);
  mask-image: radial-gradient(40% 50% at 0% 10%, #000, transparent);
}
.hero .wrap {
  position: relative; display: grid; gap: 36px; align-items: center;
  padding-block: 48px 40px;
}
.hero-copy { display: grid; gap: 22px; }
.hero-copy .display { margin-top: 2px; }
.trust { display: flex; flex-wrap: wrap; gap: 10px 26px; color: var(--nav); font-size: 0.9rem; }
.trust span { display: inline-flex; align-items: center; gap: 8px; }
.trust svg { width: 17px; height: 17px; color: var(--accent); }
.hero-art { justify-self: center; width: min(100%, 560px); }
.hero-art figcaption { text-align: center; color: var(--muted); font-size: 0.82rem; margin-top: 4px; }
@media (min-width: 960px) {
  .hero .wrap { grid-template-columns: 1.05fr 0.95fr; gap: 24px; padding-block: 112px 80px; }
  .hero-art { justify-self: end; width: 100%; max-width: 620px; }
}
@media (min-width: 1280px) {
  /* The render at its own size, as in the mock; its faded edge may sit in the gap. */
  .hero .wrap { grid-template-columns: 540px 1fr; padding-block: 64px 56px; }
  .hero-art { width: 700px; max-width: none; margin-right: -8px; }
}

/* ---------- the four-step strip ---------- */
.steps { background: var(--bg-2); border-block: 1px solid var(--line); }
.steps ol {
  list-style: none; display: grid; gap: 0;
  grid-template-columns: 1fr;
}
.steps li {
  display: flex; align-items: center; gap: 16px; padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.steps li:last-child { border-bottom: 0; }
.steps .num {
  flex: 0 0 auto; width: 38px; height: 38px; border-radius: 50%;
  display: grid; place-items: center; font-size: 0.8rem; font-weight: 700;
  color: var(--accent); background: #122D55; border: 1px solid #1E4377;
}
.steps strong { display: block; color: var(--white); font-weight: 600; }
.steps span.sub { color: #97ABC8; font-size: 0.9rem; }
@media (min-width: 720px) {
  .steps ol { grid-template-columns: repeat(2, 1fr); column-gap: 32px; }
  .steps li:nth-last-child(2) { border-bottom: 0; }
}
@media (min-width: 1100px) {
  .steps ol { grid-template-columns: repeat(4, 1fr); }
  .steps li { border-bottom: 0; padding: 26px 0; }
}

/* ---------- sections ---------- */
.section { padding-block: 64px; }
.section-head { display: grid; gap: 12px; margin-bottom: 32px; max-width: 760px; }
.section.alt { background: var(--bg-deep); border-block: 1px solid var(--line); }
@media (min-width: 960px) { .section { padding-block: 96px; } }

.grid { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid.two, .grid.three, .grid.four { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) {
  .grid.three { grid-template-columns: repeat(3, 1fr); }
  .grid.four { grid-template-columns: repeat(4, 1fr); }
}
.card {
  background: linear-gradient(180deg, var(--card) 0%, #081A33 100%);
  border: 1px solid var(--line-hi); border-radius: var(--radius);
  padding: 22px; display: grid; gap: 10px; align-content: start;
}
.card h3 { font-size: 1.12rem; font-weight: 650; }
.card p { color: var(--body); font-size: 0.96rem; }
.card .tag {
  color: var(--accent); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
}
.card .art { width: 72px; height: 72px; }
.card a.more { text-decoration: none; font-weight: 600; font-size: 0.92rem; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.chip {
  font: inherit; font-size: 0.88rem; font-weight: 600; cursor: pointer;
  padding: 8px 14px; border-radius: 999px; min-height: 40px;
  color: var(--nav); background: var(--bg-2); border: 1px solid var(--line-hi);
}
.chip[aria-pressed="true"] { background: var(--blue); border-color: #1B78D2; color: #fff; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pills li {
  list-style: none; font-size: 0.84rem; color: var(--nav);
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line-hi); background: var(--bg-2);
}

/* ---------- the call demo ---------- */
.split { display: grid; gap: 36px; align-items: center; }
@media (min-width: 960px) { .split { grid-template-columns: 1fr 1fr; gap: 64px; } }
.call {
  background: linear-gradient(180deg, var(--card-hi) 0%, var(--card) 100%);
  border: 1px solid #1E4377; border-radius: 18px; padding: 20px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35); display: grid; gap: 12px;
}
.call-top { display: flex; align-items: center; gap: 12px; }
.call-top .who { color: var(--white); font-weight: 600; }
.call-top .live {
  margin-left: auto; font-size: 0.76rem; font-weight: 700; color: var(--mint);
  border: 1px solid rgba(62, 229, 175, 0.4); border-radius: 999px; padding: 3px 10px;
}
.bubble {
  border-radius: 12px; padding: 11px 14px; font-size: 0.95rem; line-height: 1.5;
  max-width: 92%;
}
.bubble.ai { background: #0C2A52; border: 1px solid #1E4377; color: var(--white); }
.bubble.caller { background: #0A1A33; border: 1px solid var(--line-hi); justify-self: end; }
.sent {
  border-radius: 12px; padding: 14px; background: #062B26;
  border: 1px solid rgba(62, 229, 175, 0.35); color: #D7FFF1; font-size: 0.95rem;
}
.sent .label { color: var(--mint); font-weight: 700; font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; display: block; margin-bottom: 4px; }
.caption { color: var(--muted); font-size: 0.82rem; text-align: center; }

/* ---------- tabs ---------- */
.tabs [role="tablist"] { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.tabs [role="tab"] {
  font: inherit; font-size: 0.9rem; font-weight: 600; cursor: pointer;
  padding: 9px 15px; border-radius: 999px; min-height: 42px;
  color: var(--nav); background: var(--bg-2); border: 1px solid var(--line-hi);
}
.tabs [role="tab"][aria-selected="true"] { background: var(--blue); border-color: #1B78D2; color: #fff; }
.panel { display: grid; gap: 14px; max-width: 760px; }
.panel h3 { font-size: clamp(1.4rem, 3.6vw, 1.9rem); }

/* ---------- facts strip ---------- */
.facts { display: grid; gap: 14px; }
@media (min-width: 760px) { .facts { grid-template-columns: repeat(3, 1fr); } }
.fact { display: flex; gap: 14px; align-items: flex-start; }
.fact svg { width: 26px; height: 26px; color: var(--accent); flex: 0 0 auto; margin-top: 2px; }
.fact strong { color: var(--white); display: block; }

/* ---------- numbered setup steps ---------- */
.howto { counter-reset: n; display: grid; gap: 18px; }
@media (min-width: 900px) { .howto { grid-template-columns: repeat(3, 1fr); } }
.howto li { list-style: none; }
.howto .card h3::before {
  counter-increment: n; content: counter(n);
  display: inline-grid; place-items: center; width: 30px; height: 30px; margin-right: 10px;
  border-radius: 50%; background: #122D55; color: var(--accent); font-size: 0.85rem;
  vertical-align: 2px;
}
kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.9em;
  background: #0A1A33; border: 1px solid var(--line-hi); border-radius: 6px; padding: 1px 6px; color: var(--white);
}

/* ---------- call to action band ---------- */
.band {
  background: linear-gradient(120deg, #0A2A55 0%, #08203F 55%, #061A33 100%);
  border: 1px solid #1E4377; border-radius: 20px; padding: 32px 24px;
  display: grid; gap: 18px; justify-items: start;
}
@media (min-width: 900px) { .band { padding: 48px; grid-template-columns: 1fr auto; align-items: center; } }

/* ---------- footer ---------- */
.site-footer { background: var(--bg-deep); border-top: 1px solid var(--line); padding-block: 40px; color: var(--muted); font-size: 0.92rem; }
.site-footer .wrap { display: grid; gap: 20px; }
.site-footer .logo img { width: 84px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.site-footer nav a { color: var(--nav); text-decoration: none; }
.site-footer nav a:hover { color: var(--white); }
@media (min-width: 900px) {
  .site-footer .wrap { grid-template-columns: auto 1fr auto; align-items: center; gap: 32px; }
}

/* ---------- the legal pages: words untouched, light reading surface ---------- */
body.legal { background: #EEF3FA; }
body.legal main {
  display: block; max-width: 860px; margin: 32px auto 56px; padding: 28px 22px 40px;
  background: #fff; color: #23324A; border: 1px solid #DCE5F1; border-radius: 16px;
  box-shadow: 0 10px 30px rgba(11, 27, 51, 0.06);
  font-size: 1rem; line-height: 1.7;
}
@media (min-width: 900px) { body.legal main { padding: 48px 56px 56px; margin-top: 48px; } }
@media (max-width: 899px) { body.legal main { margin-inline: 12px; } }
body.legal main h1 { color: #0B1B33; font-size: clamp(1.9rem, 5vw, 2.5rem); font-weight: 700; margin-bottom: 6px; }
body.legal main h2 { color: #0B1B33; font-size: 1.28rem; font-weight: 700; margin: 34px 0 10px; padding-top: 18px; border-top: 1px solid #E5ECF5; }
body.legal main h3 { color: #0B4F96; font-size: 1.02rem; font-weight: 650; margin: 22px 0 6px; }
body.legal main p, body.legal main ul, body.legal main ol { margin-bottom: 12px; }
body.legal main ul, body.legal main ol { padding-left: 22px; }
body.legal main li { margin-bottom: 6px; }
body.legal main strong { color: #0B1B33; }
body.legal main a { color: var(--blue); }
body.legal main .updated { color: #5A6B84; font-size: 0.92rem; margin-bottom: 22px; }
body.legal main .lead { border-left: 4px solid var(--blue); padding: 4px 0 4px 14px; margin: 18px 0; color: #23324A; max-width: none; font-size: 1rem; }
body.legal main .box { background: #F3F7FD; border: 1px solid #DCE5F1; border-radius: 10px; padding: 14px 16px; margin: 16px 0; }
body.legal main table { width: 100%; border-collapse: collapse; margin: 12px 0 18px; font-size: 0.93rem; display: block; overflow-x: auto; }
body.legal main th { text-align: left; background: #0B1B33; color: #fff; padding: 9px 10px; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
body.legal main td { padding: 9px 10px; border-bottom: 1px solid #E5ECF5; vertical-align: top; }
body.legal main tr:nth-child(even) td { background: #F6F9FD; }

/* ---------- small pieces ---------- */
main { display: block; }
a.more { font-weight: 600; text-decoration: none; }
figure { margin: 0; }
.split figure { display: grid; gap: 10px; }
.store-badges { display: flex; flex-wrap: wrap; gap: 12px; }
/* Launch day: un-hiding the store badges hides the early-access button. */
.store-badges:not([hidden]) + .prelaunch { display: none; }
/* Grid children may shrink below their content: a 700 px image must not
   widen a 360 px page. */
.hero .wrap > *, .split > *, .grid > *, .facts > *, .side-by-side > *, .panel-card > * { min-width: 0; }
.site-header .nav-cta { display: none; }
@media (min-width: 1000px) { .site-header .nav-cta { display: inline-flex; } }

/* ---------- inner page heroes ---------- */
.page-hero .wrap { padding-block: 48px 40px; }
@media (min-width: 960px) { .page-hero .wrap { padding-block: 88px 64px; } }
.pack-art { justify-self: center; width: min(70vw, 300px); }
@media (min-width: 960px) {
  .pack-hero .wrap { grid-template-columns: 1.2fr 0.8fr; }
  .pack-art { width: 340px; justify-self: end; }
}
.pack-art img { filter: drop-shadow(0 20px 40px rgba(2, 102, 197, 0.35)); }
a.back { font-size: 0.92rem; color: var(--nav); }

/* ---------- lists and flows ---------- */
.ticks { list-style: none; display: grid; gap: 10px; }
.ticks li { position: relative; padding-left: 28px; color: var(--body); }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 0.35em; width: 16px; height: 16px; border-radius: 50%;
  background: #122D55 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2347C4FF' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E") center / 11px no-repeat;
  border: 1px solid #1E4377;
}
.flow { list-style: none; display: grid; gap: 18px; }
@media (min-width: 720px) { .flow { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .flow { grid-template-columns: repeat(4, 1fr); } }

/* ---------- card grids with art ---------- */
.card picture img { width: 80px; height: 80px; }
.card.pack { justify-items: start; }
.card.feature picture img { width: 64px; height: 64px; }

/* ---------- real screenshots ---------- */
.shot { display: grid; gap: 12px; align-content: start; }
.shot img { border-radius: 16px; border: 1px solid var(--line-hi); box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4); }
.shot.phone img { max-width: 300px; margin-inline: auto; border-radius: 22px; }
.shot figcaption { color: var(--muted); font-size: 0.86rem; text-align: center; }
.side-by-side { display: grid; gap: 28px; }
@media (min-width: 1000px) { .side-by-side { grid-template-columns: 0.42fr 1fr; align-items: start; } }
.panel-card {
  background: linear-gradient(180deg, var(--card) 0%, #081A33 100%);
  border: 1px solid var(--line-hi); border-radius: 18px; padding: 22px; display: grid; gap: 18px;
}
.panel-card.light { background: #F4F7FC; border-color: #DCE5F1; }
.panel-card.light h3, .panel-card.light .tag { color: #0B1B33; }
.panel-card.light p { color: #3D4B63; }

/* ---------- processors table (dark) ---------- */
.processors { width: 100%; border-collapse: collapse; font-size: 0.94rem; }
.processors th { text-align: left; color: var(--white); font-weight: 600; padding: 10px 12px; border-bottom: 1px solid var(--line-hi); }
.processors td { padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.processors td:first-child { color: var(--white); font-weight: 600; white-space: nowrap; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line-hi); border-radius: var(--radius); background: var(--card); }

/* ---------- forms (mailto) ---------- */
.form { display: grid; gap: 14px; }
.form label { display: grid; gap: 6px; color: var(--white); font-weight: 600; font-size: 0.92rem; }
.form input, .form select, .form textarea {
  font: inherit; font-weight: 400; color: var(--white); background: #081A33;
  border: 1px solid var(--line-hi); border-radius: var(--radius-sm); padding: 11px 12px; min-height: 46px; width: 100%;
}
.form textarea { min-height: 120px; resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.form .pair { display: grid; gap: 14px; }
@media (min-width: 560px) { .form .pair { grid-template-columns: 1fr 1fr; } }
.form .note { color: var(--muted); font-size: 0.84rem; }