/* Field-manual look shared with the apps: Voyago teal on a cool neutral, Bricolage display + Atkinson body. */
:root {
  --bg: #f3f6f5;
  --surface: #ffffff;
  --surface-2: #e9f0ee;
  --ink: #1d2b2f;
  --muted: #56676b;
  --line: #d6e0de;
  --accent: #1f7a62;
  --accent-ink: #ffffff;
  --accent-soft: #dff1ea;
  --warn: #8a5a00;
  --warn-soft: #fbefd5;
  --hero-from: #26363b;
  --hero-to: #2f6b5c;
  --phone: #1d2b2f;
  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --body: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f181a; --surface: #172327; --surface-2: #1d2b30; --ink: #e6efed; --muted: #9db0ae; --line: #2a3b3f;
    --accent: #5fcca6; --accent-ink: #0b1f19; --accent-soft: #1b3a32; --warn: #f2c46b; --warn-soft: #3a2f17;
    --hero-from: #1a282c; --hero-to: #1f5446; --phone: #050909;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 17px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }
h1, h2, h3 { font-family: var(--display); line-height: 1.12; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(2.3rem, 6vw, 3.8rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.2rem); font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.ui { font-weight: 700; font-size: 0.92em; background: var(--accent-soft); border-radius: 6px; padding: 1px 7px; white-space: nowrap; }
code { font-family: var(--mono); font-size: 0.88em; background: var(--accent-soft); padding: 1px 6px; border-radius: 5px; overflow-wrap: anywhere; }

.wrap {
  max-width: 1080px; margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
.narrow { max-width: 820px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 16px; padding-block: 12px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font: 800 1.15rem var(--display); }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav a { text-decoration: none; color: var(--muted); font-weight: 700; padding: 8px 12px; border-radius: 10px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); background: var(--surface-2); }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--line); color: var(--ink); border-radius: 10px; height: 40px; padding: 0 12px; font: 700 0.95rem var(--body); }
@media (max-width: 760px) {
  .menu-btn { display: inline-block; }
  .nav { display: none; position: absolute; inset: 100% 0 auto; flex-direction: column; align-items: stretch; background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px max(20px, env(safe-area-inset-left, 0px)) 16px; }
  .nav.open { display: flex; }
}

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 0 20px; border-radius: 14px; font: 700 1rem var(--body); text-decoration: none; border: 0; cursor: pointer; transition: filter .15s, transform .15s; }
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-light { background: #fff; color: #1d2b2f; }
.btn-ghost { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.25); }
.btn-soft { background: var(--accent-soft); color: var(--ink); }
.btn small { font-weight: 400; opacity: .75; }

/* Hero */
.hero { background: linear-gradient(135deg, var(--hero-from), var(--hero-to)); color: #fff; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 40px; align-items: center; padding-block: 64px; }
.hero .eyebrow { color: #a8e6cf; }
.hero p.lede { color: rgba(255,255,255,.82); font-size: 1.15rem; max-width: 52ch; margin-top: 16px; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero .shots { display: grid; grid-template-columns: 1.6fr 1fr; gap: 14px; align-items: end; }
.hero .shots img { border-radius: 14px; box-shadow: 0 24px 50px -24px rgba(0,0,0,.6); }
.hero .shots .phone-shot { border: 6px solid #0b1416; border-radius: 26px; }
@media (max-width: 860px) { .hero .wrap { grid-template-columns: minmax(0, 1fr); padding-block: 44px; } }

.eyebrow { font: 700 0.78rem/1 var(--body); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.lede { color: var(--muted); font-size: 1.12rem; max-width: 62ch; }

section.band { padding-block: 64px; border-bottom: 1px solid var(--line); }
.sec-head { display: grid; gap: 10px; margin-bottom: 28px; }

.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 860px) { .grid-3 { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 680px) { .grid-2 { grid-template-columns: minmax(0, 1fr); } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 22px; display: grid; gap: 8px; align-content: start; }
.card p { color: var(--muted); }

.platform { display: grid; gap: 14px; }
.platform .meta { display: flex; flex-wrap: wrap; gap: 8px; }
.pill { font-size: .85rem; border: 1px solid var(--line); border-radius: 999px; padding: 3px 12px; background: var(--surface-2); }

/* Steps: numbered because they are real sequences */
ol.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; display: grid; gap: 14px; min-width: 0; }
ol.steps > li { counter-increment: s; display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 12px; }
ol.steps > li::before { content: counter(s); width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font: 700 .95rem/30px var(--body); text-align: center; }
ol.steps .sub { color: var(--muted); font-size: .95rem; margin-top: 4px; }
ul.plain { margin: 0; padding-left: 1.2em; display: grid; gap: 8px; }

/* Guide layout */
.guide-hero { padding-block: 48px 28px; border-bottom: 1px solid var(--line); display: grid; gap: 16px; }
.toc ol { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 18px; counter-reset: toc; }
.toc li { counter-increment: toc; }
.toc a { text-decoration: none; color: var(--ink); font-weight: 700; }
.toc a::before { content: counter(toc) " "; font-family: var(--mono); color: var(--accent); font-weight: 500; margin-right: 4px; }
.guide section { padding-block: 40px; border-bottom: 1px solid var(--line); display: grid; gap: 20px; }
.guide section:last-of-type { border-bottom: 0; }
.sec-num { font: 500 .85rem var(--mono); color: var(--accent); }
.pair { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 32px; align-items: start; }
.pair.flip { grid-template-columns: 250px minmax(0, 1fr); }
.pair.flip > figure { order: -1; }
.pair.wide { grid-template-columns: minmax(0, 1fr); }
@media (max-width: 760px) {
  .pair, .pair.flip { grid-template-columns: minmax(0, 1fr); }
  .pair.flip > figure { order: 0; }
  .pair > figure.phone { max-width: 260px; justify-self: center; }
}
figure { margin: 0; }
.phone { background: var(--phone); border-radius: 30px; padding: 9px; box-shadow: 0 18px 40px -22px rgba(0,0,0,.45); }
.phone img { border-radius: 22px; width: 100%; }
figcaption { color: var(--muted); font-size: .85rem; text-align: center; padding-top: 8px; }
.phone figcaption { color: #c8d6d3; }
.browser { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--surface); box-shadow: 0 18px 40px -26px rgba(0,0,0,.35); }
.browser::before { content: ""; display: block; height: 26px; background: var(--surface-2) radial-gradient(circle at 14px 13px, #e46a5b 4px, transparent 5px), var(--surface-2); border-bottom: 1px solid var(--line); }

.callout { border-radius: 14px; padding: 14px 18px; display: grid; gap: 4px; max-width: 72ch; }
.callout.tip { background: var(--accent-soft); }
.callout.warn { background: var(--warn-soft); }
.callout .label { font: 700 .78rem/1.2 var(--body); letter-spacing: .1em; text-transform: uppercase; }
.callout.tip .label { color: var(--accent); }
.callout.warn .label { color: var(--warn); }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; min-width: 460px; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
th { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }

details { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 0 18px; }
details + details { margin-top: 10px; }
summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-family: var(--mono); color: var(--accent); }
details[open] summary::after { content: "–"; }
details > div { padding-bottom: 16px; display: grid; gap: 8px; }

/* About */
.about-hero { padding-block: 56px 32px; display: grid; gap: 14px; border-bottom: 1px solid var(--line); }
.monogram { width: 84px; height: 84px; border-radius: 24px; display: grid; place-items: center; background: linear-gradient(135deg, var(--hero-from), var(--hero-to)); color: #fff; font: 800 2rem var(--display); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; font-size: .9rem; }
.project .tags { font: 500 .8rem var(--mono); color: var(--muted); }

.site-footer { padding-block: 36px 48px; color: var(--muted); font-size: .92rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }
.intro { color: var(--muted); max-width: 62ch; }
.nav a.btn-primary, .nav a.btn-primary:hover { color: var(--accent-ink); background: var(--accent); }