/* AI spend diversification calculator: public ephemeral site.
   Brand tokens per the Cloudflare OS design rules: warm parchment page, white sharp cards,
   Tangerine as accent only, Kunst Grotesk primary with Inter fallback, Apercu Mono for figures. */

@font-face {
  font-family: "FT Kunst Grotesk";
  src: url("fonts/Kunst Grotesk Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "FT Kunst Grotesk";
  src: url("fonts/Kunst Grotesk Medium.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("fonts/inter-400.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("fonts/inter-600.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "Apercu Mono Pro";
  src: url("fonts/Apercu Mono Pro Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

:root {
  --page: #f5f1eb;
  --card: #ffffff;
  --ink: #000000;
  --body: #521000;
  --secondary: #7a5c4d;
  --muted: #8a7364;
  --accent: #F6821F;
  --stay: #4a3a30;
  --line: #e5e5e5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page);
  color: var(--body);
  font-family: "FT Kunst Grotesk", "Inter", system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.5;
}

main, .hero-inner, footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero: the single featured motif per view. Corner marks plus a 4% dot grid. */
.hero {
  position: relative;
  padding: 64px 0 48px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Ccircle cx='2' cy='2' r='1' fill='%23F6821F' fill-opacity='0.04'/%3E%3C/svg%3E");
}
.cf-featured::before,
.cf-featured::after,
.cf-featured .corner-tr,
.cf-featured .corner-bl {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--accent);
}
.cf-featured::before { top: 0; left: 0; }
.cf-featured::after { bottom: 0; right: 0; }
.cf-featured .corner-tr { top: 0; right: 0; }
.cf-featured .corner-bl { bottom: 0; left: 0; }

.logo { height: 36px; width: auto; margin-bottom: 24px; }

.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(246, 130, 31, 0.1);
  color: var(--accent);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 16px;
  color: var(--ink);
  font-size: 40px;
  font-weight: 500;
  line-height: 1.15;
}

h2 {
  margin: 0 0 16px;
  color: var(--ink);
  font-size: 24px;
  font-weight: 500;
}

.lede { font-size: 18px; max-width: 640px; margin: 0 0 16px; }
.ephemeral { color: var(--secondary); font-size: 14px; max-width: 640px; margin: 0; }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 32px;
  margin: 24px auto;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
@media (max-width: 900px) {
  .calc-grid { grid-template-columns: 1fr; }
  h1 { font-size: 30px; }
  .panel { padding: 24px; }
}

.field { margin-bottom: 24px; }
.field label {
  display: block;
  color: var(--ink);
  font-weight: 500;
  margin-bottom: 8px;
}
.field-row { display: flex; align-items: center; gap: 16px; }
.field-row output {
  font-family: "Apercu Mono Pro", monospace;
  font-size: 15px;
  color: var(--ink);
  min-width: 110px;
  text-align: right;
}
.hint { color: var(--secondary); font-size: 13px; margin: 6px 0 0; }

input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  height: 4px;
}
input[type="range"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 560px) { .results { grid-template-columns: 1fr; } }

.stat {
  border: 1px solid var(--line);
  padding: 16px;
}
.stat-primary { grid-column: 1 / -1; }
.stat-label {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--secondary);
}
.stat-value {
  margin: 0;
  font-family: "Apercu Mono Pro", monospace;
  font-size: 28px;
  color: var(--ink);
  transition: color 150ms ease;
}
.stat-primary .stat-value { font-size: 44px; color: var(--accent); }
.stat-value.stat-sm { font-size: 20px; }
.stat-note { margin: 6px 0 0; font-size: 13px; color: var(--secondary); }

#chart { margin-top: 16px; }
#chart svg { display: block; width: 100%; height: auto; }

/* The full model: collapsible groups of contract fields. */
.group {
  border: 1px solid var(--line);
  border-radius: 0;
  margin-bottom: 12px;
  padding: 0;
}
.group summary {
  cursor: pointer;
  padding: 14px 18px;
  color: var(--ink);
  font-weight: 500;
  list-style-position: inside;
}
.group summary:hover { color: var(--accent); }
.group > .hint { padding: 0 18px; }
.fields-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
  padding: 12px 18px 18px;
}
@media (max-width: 700px) { .fields-grid { grid-template-columns: 1fr; } }
.model-field label {
  display: block;
  font-size: 13px;
  color: var(--body);
  margin-bottom: 4px;
}
.model-field input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 0;
  font-family: "Apercu Mono Pro", monospace;
  font-size: 14px;
  color: var(--ink);
  background: #ffffff;
}
.model-field input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
.save-note {
  font-size: 13px;
  color: var(--secondary);
  margin: 0 0 20px;
}
.text-button {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
  text-decoration: underline;
}
.text-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.results-partb { margin-top: 16px; }
.legend {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 13px;
  color: var(--secondary);
}
.key { width: 24px; height: 3px; display: inline-block; }
.key-stay { background: var(--stay); }
.key-escape { background: var(--accent); }
.legend span:nth-child(2) { margin-right: 24px; }

.defaults { margin: 16px 0; }
.defaults div {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.defaults dt { color: var(--body); }
.defaults dd {
  margin: 0;
  font-family: "Apercu Mono Pro", monospace;
  color: var(--ink);
  text-align: right;
}

.sources { font-size: 14px; color: var(--secondary); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.cta p { max-width: 640px; }
.button {
  display: inline-block;
  background: var(--ink);
  color: #ffffff;
  padding: 12px 24px;
  font-weight: 500;
  border: 2px solid var(--ink);
  transition: background-color 150ms ease, border-color 150ms ease;
}
.button:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

footer {
  padding-top: 24px;
  padding-bottom: 48px;
  font-size: 13px;
  color: var(--muted);
}
footer p { max-width: 720px; }