/* Self-hosted fonts (previously loaded from the Google Fonts CDN).
   Files in /assets/fonts/, latin subset, woff2 only. */
@font-face { font-family: 'Space Grotesk'; font-style: normal; font-weight: 500; font-display: swap; src: url('/assets/fonts/space-grotesk-latin-500-normal.woff2') format('woff2'); }
@font-face { font-family: 'Space Grotesk'; font-style: normal; font-weight: 600; font-display: swap; src: url('/assets/fonts/space-grotesk-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'Space Grotesk'; font-style: normal; font-weight: 700; font-display: swap; src: url('/assets/fonts/space-grotesk-latin-700-normal.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 400; font-display: swap; src: url('/assets/fonts/ibm-plex-sans-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 600; font-display: swap; src: url('/assets/fonts/ibm-plex-sans-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url('/assets/fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url('/assets/fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2'); }

/* FitEngineering — site stylesheet
   Palette sampled directly from Logo_512x512_bg.png and the header artwork. */

:root {
  --bg:        #161d27;
  --bg-deep:   #101620;
  --surface:   #1c2532;
  --surface-2: #222c3b;
  --line:      #2a3545;
  --line-soft: #212b39;

  --ink:       #e8edf3;
  --ink-dim:   #8b99ac;
  --ink-faint: #5c6b7e;

  --blue:  #4a8cbc;
  --cyan:  #51cae7;
  --teal:  #5fdac6;
  --green: #76cc9b;

  --trace: linear-gradient(90deg, var(--blue) 0%, var(--cyan) 38%, var(--teal) 62%, var(--green) 100%);

  --display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;

  --wrap: 1080px;
  --gutter: 24px;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--cyan); text-decoration-color: rgba(81, 202, 231, 0.35); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--cyan); }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 2px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--cyan); color: var(--bg-deep); padding: 10px 16px;
  font-family: var(--mono); font-size: 13px;
}
.skip:focus { left: 8px; top: 8px; }

/* ---------- masthead ---------- */

.masthead {
  position: sticky; top: 0; z-index: 40;
  background: rgba(22, 29, 39, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-soft);
}

.masthead__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; height: 62px;
}

.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; color: var(--ink); }
.brand img { width: 30px; height: 30px; border-radius: 50%; }
.brand span {
  font-family: var(--display); font-weight: 600; font-size: 16px; letter-spacing: -0.01em;
}

.nav { display: flex; align-items: center; gap: 26px; }
.nav a {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink-dim); text-decoration: none;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }

/* ---------- language switcher ---------- */

.lang { display: flex; align-items: center; gap: 6px; margin-left: 4px; }
.lang a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 19px; border-radius: 3px; overflow: hidden;
  border: 1px solid var(--line); opacity: 0.45;
  transition: opacity 0.18s ease, border-color 0.18s ease;
}
.lang a:hover { opacity: 0.9; border-color: var(--ink-faint); }
.lang a[aria-current="true"] { opacity: 1; border-color: var(--cyan); }
.lang svg { display: block; width: 100%; height: 100%; }

@media (max-width: 520px) { .lang a { width: 23px; height: 17px; } }

/* ---------- the trace: signature element ---------- */

.trace { display: block; width: 100%; height: auto; overflow: visible; }
.trace path { fill: none; stroke-linecap: round; stroke-linejoin: round; }

.trace--hero { height: 132px; }
.trace--rule { height: 68px; opacity: 0.62; }

.trace__line {
  stroke: url(#traceGradient);
  stroke-width: 2.5;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: sweep 2.4s cubic-bezier(0.16, 0.84, 0.32, 1) 0.15s forwards;
}
.trace--rule .trace__line { stroke-width: 2.5; animation-duration: 1.6s; }

@keyframes sweep { to { stroke-dashoffset: 0; } }

.rule { margin: 0; border: 0; }

/* ---------- hero ---------- */

.hero { padding-top: 76px; }

.eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-faint); margin: 0 0 22px;
}
.eyebrow b { color: var(--teal); font-weight: 500; }

.hero h1 {
  font-family: var(--display);
  font-size: clamp(1.68rem, 4.34vw, 2.87rem);
  font-weight: 500;
  line-height: 1.03;
  letter-spacing: -0.035em;
  margin: 0 0 4px;
  max-width: 15ch;
}
.hero h1 em {
  font-style: normal;
  background: var(--trace);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}

.hero__note {
  max-width: 46ch; color: var(--ink-dim); font-size: 1.06rem; margin: 26px 0 0;
}

.hero__trace { margin: 30px 0 0; }

/* ---------- sections ---------- */

.section { padding: 74px 0; }
.section--tight { padding: 52px 0; }

.section__head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 34px; }
.section__head h2 {
  font-family: var(--display); font-size: 1.45rem; font-weight: 600;
  letter-spacing: -0.02em; margin: 0;
}
.section__head .tag {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--ink-faint);
}

/* ---------- app cards ---------- */

.apps { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 20px; }

.app {
  display: flex; flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px;
  text-decoration: none; color: inherit;
  transition: border-color 0.22s ease, transform 0.22s ease, background 0.22s ease;
}
.app:hover { border-color: #3a4a60; background: var(--surface-2); transform: translateY(-3px); }

.app__top { display: flex; align-items: center; gap: 15px; margin-bottom: 18px; }
.app__icon { width: 54px; height: 54px; border-radius: 13px; flex: none; }
.app__name { font-family: var(--display); font-size: 1.22rem; font-weight: 600; margin: 0; letter-spacing: -0.015em; }

.app__desc { color: var(--ink-dim); font-size: 0.97rem; margin: 0 0 20px; flex: 1; }

.app__foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.app__go { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--cyan); }

/* status pill — encodes release state, the one thing a visitor needs to know */
.status {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.13em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 100px; border: 1px solid; white-space: nowrap;
}
.status--live { color: var(--green); border-color: rgba(118, 204, 155, 0.4); background: rgba(118, 204, 155, 0.09); }
.status--testing { color: var(--cyan); border-color: rgba(81, 202, 231, 0.4); background: rgba(81, 202, 231, 0.09); }

/* ---------- principles ---------- */

.principles { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 34px; }
.principle h3 {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--teal); margin: 0 0 12px; font-weight: 500;
}
.principle p { margin: 0; color: var(--ink-dim); font-size: 0.97rem; }

/* ---------- app detail page ---------- */

.detail__head { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; margin-bottom: 8px; }
.detail__icon { width: 84px; height: 84px; border-radius: 20px; flex: none; }
.detail h1 {
  font-family: var(--display); font-size: clamp(2rem, 5vw, 2.9rem); font-weight: 500;
  letter-spacing: -0.03em; margin: 0 0 6px;
}
.detail__lede { font-size: 1.12rem; color: var(--ink-dim); max-width: 54ch; margin: 20px 0 32px; }

/* hero: intro text beside the phone render */
.detail__hero {
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 44px; align-items: center;
}
.detail__price {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.13em;
  text-transform: uppercase; color: var(--ink-faint); margin: 14px 0 0;
}
.detail__price b { color: var(--teal); font-weight: 500; }
.detail__story {
  font-size: 0.99rem; color: var(--ink-dim); max-width: 56ch;
  margin: 26px 0 0; padding-left: 18px;
  border-left: 2px solid rgba(95, 218, 198, 0.35);
}
.detail__shot img {
  width: 100%; max-width: 330px; height: auto; margin-inline: auto;
  filter: drop-shadow(0 26px 44px rgba(0, 0, 0, 0.55));
}

@media (max-width: 820px) {
  .detail__hero { grid-template-columns: 1fr; gap: 30px; }
  .detail__shot img { max-width: 260px; }
}

.features { list-style: none; padding: 0; margin: 0; display: grid; gap: 2px; }
.features li {
  display: grid; grid-template-columns: 26px 1fr; gap: 12px; align-items: start;
  padding: 13px 0; border-bottom: 1px solid var(--line-soft); color: var(--ink-dim);
}
.features li::before {
  content: ""; width: 9px; height: 9px; margin-top: 8px; border-radius: 50%;
  background: var(--trace); justify-self: center;
}
.features li b { color: var(--ink); font-weight: 600; }

/* screenshots inside a feature bullet */
.shot { margin: 14px 0 2px; }
.shot img {
  width: 100%; max-width: 300px; height: auto;
  border: 1px solid var(--line); border-radius: 12px;
  background: var(--bg-deep);
}
.shot--narrow img { max-width: 240px; }
.shot__row { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start; }
.shot__row .shot { margin: 14px 0 2px; }
.shot__row .shot img { max-width: 200px; }

/* ---------- data table ---------- */

.datatable { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.datatable th, .datatable td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.datatable th {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-faint); font-weight: 500;
}
.datatable td { color: var(--ink-dim); }
.datatable td:first-child { color: var(--ink); }

/* ---------- buttons ---------- */

.actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.07em; text-transform: uppercase;
  padding: 13px 22px; border-radius: 8px; text-decoration: none;
  border: 1px solid var(--line); color: var(--ink); background: var(--surface);
  transition: background 0.2s ease, border-color 0.2s ease;
}
.btn:hover { background: var(--surface-2); border-color: #3a4a60; }

.btn--play { background: var(--trace); color: #0d141c; border-color: transparent; font-weight: 600; }
.btn--play:hover { filter: brightness(1.1); border-color: transparent; }

.btn[aria-disabled="true"] { opacity: 0.42; pointer-events: none; }

/* ---------- prose (legal pages) ---------- */

.prose { max-width: 68ch; }
.prose h1 {
  font-family: var(--display); font-size: clamp(1.9rem, 4.4vw, 2.5rem); font-weight: 500;
  letter-spacing: -0.03em; margin: 0 0 10px;
}
.prose h2 {
  font-family: var(--display); font-size: 1.22rem; font-weight: 600;
  letter-spacing: -0.015em; margin: 44px 0 12px; padding-top: 20px;
  border-top: 1px solid var(--line-soft);
}
.prose h3 { font-family: var(--display); font-size: 1.02rem; font-weight: 600; margin: 26px 0 8px; }
.prose p, .prose li { color: var(--ink-dim); }
.prose li { margin-bottom: 7px; }
.prose strong { color: var(--ink); }
.prose .updated {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 40px;
}
.prose address { font-style: normal; color: var(--ink-dim); }

.callout {
  border-left: 2px solid var(--teal);
  background: var(--surface);
  padding: 18px 22px; border-radius: 0 10px 10px 0; margin: 26px 0;
}
.callout p { margin: 0; color: var(--ink-dim); font-size: 0.95rem; }

/* ---------- footer ---------- */

.footer { border-top: 1px solid var(--line-soft); padding: 46px 0 60px; margin-top: 30px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 34px; }
.footer h4 {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 14px; font-weight: 500;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 9px; }
.footer a { color: var(--ink-dim); text-decoration: none; font-size: 0.94rem; }
.footer a:hover { color: var(--ink); }
.footer__note { color: var(--ink-faint); font-size: 0.88rem; margin: 34px 0 0; }

@media (max-width: 720px) {
  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .nav { gap: 16px; }
  .nav a { font-size: 11.5px; }
  .section { padding: 56px 0; }
  .hero { padding-top: 52px; }
}

@media (max-width: 420px) {
  .brand span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .trace__line { animation: none; stroke-dashoffset: 0; }
  .app { transition: none; }
  .app:hover { transform: none; }
}