@font-face {
  font-family: 'Nunito';
  src: url('fonts/Nunito.ttf') format('truetype-variations');
  font-weight: 200 1000;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'ElmsSans';
  src: url('fonts/ElmsSans.ttf') format('truetype-variations');
  font-weight: 200 1000;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrainsMono';
  src: url('fonts/JetBrainsMono.ttf') format('truetype-variations');
  font-weight: 200 1000;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Horizon (accent) */
  --horizon-50:  #F0F6FF;
  --horizon-100: #DCEAFF;
  --horizon-500: #2A6FDB;
  --horizon-600: #1F57B8;
  --horizon-700: #1C4791;

  /* Slate (neutrals) */
  --slate-0:   #FFFFFF;
  --slate-50:  #F7F9FC;
  --slate-100: #EEF2F7;
  --slate-200: #D4DBE5;
  --slate-300: #B6BFCC;
  --slate-400: #8A94A4;
  --slate-500: #5F6878;
  --slate-600: #434C5C;
  --slate-700: #2F3744;
  --slate-900: #131822;

  /* Sectional */
  --sectional-50:  #FBF8F1;
  --sectional-100: #F5EFE1;
  --sectional-500: #8C7849;

  --green-500: #1F8A51;
  --amber-500: #B8770D;
  --violet-500: #5A3BBF;

  /* Tokens (light) */
  --bg: var(--slate-50);
  --bg-elevated: var(--slate-0);
  --bg-sunken: var(--slate-100);
  --bg-chart: var(--sectional-50);
  --fg1: var(--slate-900);
  --fg2: var(--slate-600);
  --fg3: var(--slate-400);
  --fg-on-accent: var(--slate-0);
  --border: var(--slate-200);
  --border-strong: var(--slate-300);
  --accent: var(--horizon-500);
  --accent-hover: var(--horizon-600);
  --accent-soft: var(--horizon-50);

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(19, 24, 34, 0.06);
  --shadow: 0 6px 18px rgba(19, 24, 34, 0.08);

  --content-max: 1120px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg1);
  font-family: 'ElmsSans', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3, h4 {
  font-family: 'Nunito', system-ui, sans-serif;
  color: var(--fg1);
  margin: 0 0 0.5em;
  letter-spacing: -0.02em;
}
h1 { font-weight: 800; font-size: 48px; line-height: 1.15; }
h2 { font-weight: 700; font-size: 30px; line-height: 1.2; }
h3 { font-weight: 600; font-size: 20px; line-height: 1.3; letter-spacing: 0; }
h4 {
  font-family: 'ElmsSans', system-ui, sans-serif;
  font-weight: 600; font-size: 17px; letter-spacing: 0;
}

p { margin: 0 0 1em; color: var(--fg2); }

.mono {
  font-family: 'JetBrainsMono', ui-monospace, monospace;
  font-feature-settings: 'tnum' 1, 'zero' 1;
}

.label {
  font-family: 'ElmsSans', sans-serif;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg2);
}

/* Layout ─────────────────────────────────────────────────────── */

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 249, 252, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  color: var(--fg1);
}
.brand:hover { text-decoration: none; color: var(--fg1); }
.brand svg, .brand img { height: 36px; width: auto; display: block; }

nav.site-nav { display: flex; gap: 24px; align-items: center; }
nav.site-nav a {
  color: var(--fg2);
  font-weight: 500;
}
nav.site-nav a:hover { color: var(--fg1); text-decoration: none; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-family: 'ElmsSans', sans-serif;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}
.btn-primary {
  background: var(--accent);
  color: var(--fg-on-accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--fg-on-accent);
  text-decoration: none;
}
.btn-secondary {
  background: var(--bg-elevated);
  color: var(--fg1);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  background: var(--slate-100);
  text-decoration: none;
  color: var(--fg1);
}
.btn-lg { padding: 14px 24px; font-size: 15px; }

/* Hero */
.hero {
  padding: 96px 0 64px;
  text-align: center;
  background:
    radial-gradient(ellipse at top, var(--accent-soft), transparent 60%),
    var(--bg);
}
.hero h1 { font-size: clamp(40px, 6vw, 64px); }
.hero p.lead {
  font-size: 19px;
  color: var(--fg2);
  max-width: 640px;
  margin: 0 auto 32px;
}
.hero .ctas {
  display: inline-flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.eyebrow {
  display: inline-block;
  font-family: 'JetBrainsMono', monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 20px;
}

/* Section base */
section { padding: 72px 0; }
section.alt { background: var(--bg-elevated); border-block: 1px solid var(--border); }
.section-head {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}
.section-head h2 { margin-bottom: 12px; }
.section-head p { font-size: 17px; }

/* Feature grid */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.card h3 { margin-top: 8px; }
.card p { color: var(--fg2); margin-bottom: 0; }
.card .icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  color: var(--accent);
}

/* Field-card-style sample to echo the app aesthetic */
.field-sample {
  display: inline-flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  text-align: left;
  box-shadow: var(--shadow-sm);
  min-width: 160px;
}
.field-sample .field-label {
  font-family: 'ElmsSans', sans-serif;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg2);
  margin-bottom: 6px;
}
.field-sample .field-value {
  font-family: 'JetBrainsMono', monospace;
  font-feature-settings: 'tnum' 1, 'zero' 1;
  font-weight: 600;
  font-size: 24px;
  color: var(--fg1);
  line-height: 1;
}
.field-sample .field-id {
  font-family: 'JetBrainsMono', monospace;
  font-size: 10px;
  color: var(--fg3);
  margin-top: 6px;
}
.field-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 40px;
}

/* Prose pages (privacy / imprint) */
.prose {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 0;
}
.prose h2 { margin-top: 2em; font-size: 24px; }
.prose h2:first-of-type { margin-top: 0; }
.prose p, .prose li { color: var(--fg2); }
.prose strong { color: var(--fg1); }
.prose ul { padding-left: 1.25em; }

/* Footer */
.site-footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: 40px 0;
  margin-top: 40px;
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
}
.site-footer .legal {
  color: var(--fg3);
  font-size: 13px;
}
.site-footer nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.site-footer nav a { color: var(--fg2); }

@media (max-width: 560px) {
  .hero { padding: 64px 0 40px; }
  section { padding: 48px 0; }
  nav.site-nav { gap: 14px; }
  nav.site-nav a.label-only { display: none; }
}