/* Kromatic brand stylesheet for fermi's self-served HTML surfaces (#409).
 *
 * Tokens, base typography, header and footer are ported from the canonical
 * Kromatic brand definition in kroblog (`src/styles/global.css`,
 * `src/components/Header.astro`, `src/components/Footer.astro`) so that a
 * visitor arriving from kromatic.com sees one brand, not two.
 *
 * Presentation only. Nothing here changes an API or MCP response.
 */

/* ============================================================
   Design tokens (kroblog src/styles/global.css)
   ============================================================ */
:root {
  --accent: #2563eb;          /* CTA blue */
  --accent-dark: #1d4ed8;
  --accent-yellow: #f5c518;   /* Kromatic highlight yellow */
  --black: 10, 10, 10;
  --gray: 96, 115, 159;
  --gray-light: 229, 233, 240;
  --gray-dark: 34, 41, 57;
  --bg: #fffdf5;              /* Cream background */
  --header-bg: #ffe6b4;
  --header-height: 75px;
  --footer-bg: #090928;
  --footer-text: #fff;
  --content-width: 760px;
  --wide-width: 1100px;
  --btn-blue-bg: #5f55ff;
  --btn-blue-hover: #2f22ff;
  --btn-blue-radius: 60px;
  --box-shadow:
    0 2px 6px rgba(var(--gray), 25%),
    0 8px 24px rgba(var(--gray), 33%);
}

/* ============================================================
   Fonts — self-hosted so these pages make no third-party request
   beyond the analytics already present (#413). Source files are
   vendored from kroblog/public/fonts; see brand/README.md.
   ============================================================ */
@font-face {
  font-family: "Atkinson";
  src: url("/static/brand/fonts/atkinson-regular.woff") format("woff");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Atkinson";
  src: url("/static/brand/fonts/atkinson-bold.woff") format("woff");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

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

body {
  font-family: "Atkinson", system-ui, -apple-system, sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  color: rgb(var(--gray-dark));
  font-size: 18px;
  line-height: 1.7;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

main {
  width: var(--content-width);
  max-width: calc(100% - 2em);
  margin: 0 auto;
  padding: 2.5em 1em 3em;
}

h1, h2, h3, h4 {
  margin: 0 0 0.5rem 0;
  color: rgb(var(--black));
  line-height: 1.2;
  font-weight: 700;
}
h1 { font-size: 2.5rem; }
h2 { font-size: 1.875rem; margin-top: 2.25rem; }
h3 { font-size: 1.375rem; margin-top: 1.75rem; }

p { margin: 0 0 1em; }
ul, ol { padding-left: 1.25rem; }
li { margin-bottom: 0.35em; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
a:hover { color: var(--accent-dark); }

code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
}
code {
  background: rgba(var(--gray-light), 0.55);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
pre {
  background: #f7f4e8;
  border: 1px solid rgba(var(--gray), 0.25);
  border-left: 4px solid var(--accent-yellow);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  line-height: 1.5;
}
pre code { background: none; padding: 0; }

hr {
  border: 0;
  border-top: 1px solid rgba(var(--gray), 0.25);
  margin: 2.5rem 0;
}

/* ============================================================
   Header (kroblog src/components/Header.astro)
   ============================================================ */
.kromatic-header {
  background: var(--header-bg);
  min-height: var(--header-height);
  padding: 0 24px;
}

.kromatic-header__inner {
  max-width: var(--wide-width);
  margin: 0 auto;
  min-height: var(--header-height);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  padding: 0.75rem 0;
}

.kromatic-header__logo { display: flex; align-items: center; }
.kromatic-header__logo img { display: block; height: 34px; width: auto; }

.kromatic-header__product {
  font-weight: 700;
  font-size: 1rem;
  color: rgb(var(--black));
  border-left: 1px solid rgba(var(--gray-dark), 0.35);
  padding-left: 1rem;
  letter-spacing: 0.02em;
}

.kromatic-header__nav {
  margin-left: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.95rem;
}

.kromatic-header__nav a {
  color: rgb(var(--gray-dark));
  text-decoration: none;
  font-weight: 700;
}
.kromatic-header__nav a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

/* ============================================================
   Content components
   ============================================================ */
.lede {
  font-size: 1.15rem;
  color: rgb(var(--gray-dark));
}

.panel {
  background: #fff;
  border: 1px solid rgba(var(--gray), 0.25);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
}
.panel--agents { border-left-color: var(--accent-yellow); }
.panel > h2:first-child,
.panel > h3:first-child { margin-top: 0; }

.notice {
  background: #fff8e1;
  border-left: 4px solid var(--accent-yellow);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin: 1.75rem 0 1.25rem;
}
.tabs button {
  font: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.5rem 1.4rem;
  border: 1px solid rgba(var(--gray-dark), 0.3);
  border-radius: var(--btn-blue-radius);
  background: transparent;
  color: rgb(var(--gray-dark));
  cursor: pointer;
}
.tabs button:hover { border-color: var(--btn-blue-bg); }
.tabs button.active {
  background: var(--btn-blue-bg);
  border-color: var(--btn-blue-bg);
  color: #fff;
}

.section { display: none; }
.section.active { display: block; }

.breadcrumb {
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}
.breadcrumb a + a::before {
  content: " | ";
  color: rgba(var(--gray), 0.9);
}

/* ============================================================
   Footer (kroblog src/components/Footer.astro)
   ============================================================ */
.kromatic-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  font-family: "Montserrat", "Atkinson", system-ui, -apple-system, sans-serif;
  font-size: 13px;
  line-height: 20px;
  letter-spacing: -0.2px;
  padding: 24px;
  margin-top: 4rem;
}

.kromatic-footer__inner {
  max-width: var(--wide-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.kromatic-footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.kromatic-footer__powered-by { opacity: 0.75; }
.kromatic-footer__logo { display: block; height: 30px; width: auto; }

.kromatic-footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px;
}
.kromatic-footer a {
  color: var(--footer-text);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.kromatic-footer a:hover { color: var(--accent-yellow); }
.kromatic-footer__sep { opacity: 0.5; }
.kromatic-footer__legal {
  opacity: 0.75;
  max-width: 62ch;
  margin: 0;
}

@media (max-width: 640px) {
  body { font-size: 17px; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  .kromatic-header__nav { margin-left: 0; width: 100%; }
}