/* Tesla Referralgids NL — original stylesheet, conversational/chat UI.
   All classes use the unique ch- prefix. Built from scratch (master §0, §1.3). */

:root {
  --ch-font: "Trebuchet MS", "Segoe UI", Tahoma, sans-serif;

  /* Friendly own palette + a Dutch (oranje) accent */
  --ch-bg: #f3f6fb;
  --ch-bg-soft: #e7edf6;
  --ch-surface: #ffffff;
  --ch-ink: #1a2233;
  --ch-ink-soft: #4a566b;
  --ch-ink-faint: #6b7688;
  --ch-line: #d8e0ec;

  --ch-ask-bg: #2f6df0;      /* question bubble (user) — friendly blue */
  --ch-ask-ink: #ffffff;
  --ch-reply-bg: #ffffff;    /* answer bubble (assistant) */
  --ch-reply-ink: #1a2233;

  --ch-accent: #ff6a13;      /* Dutch oranje accent */
  --ch-accent-ink: #ffffff;
  --ch-accent-soft: #fff1e8;

  --ch-ok: #128a5b;
  --ch-warn-bg: #fff7e6;
  --ch-warn-line: #f0c368;
  --ch-warn-ink: #6b4e11;

  --ch-radius: 18px;
  --ch-radius-sm: 10px;
  --ch-shadow: 0 1px 2px rgba(20, 30, 55, .06), 0 6px 20px rgba(20, 30, 55, .07);
  --ch-maxw: 760px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ch-bg: #10151f;
    --ch-bg-soft: #161d2b;
    --ch-surface: #1a2231;
    --ch-ink: #eaf0fa;
    --ch-ink-soft: #b7c1d4;
    --ch-ink-faint: #8b97ad;
    --ch-line: #2b3547;
    --ch-ask-bg: #3d7bff;
    --ch-ask-ink: #ffffff;
    --ch-reply-bg: #1f2938;
    --ch-reply-ink: #eaf0fa;
    --ch-accent: #ff7d33;
    --ch-accent-soft: #35251a;
    --ch-ok: #46c491;
    --ch-warn-bg: #2c2413;
    --ch-warn-line: #6b551f;
    --ch-warn-ink: #f0d492;
  }
}

:root[data-theme="dark"] {
  --ch-bg: #10151f;
  --ch-bg-soft: #161d2b;
  --ch-surface: #1a2231;
  --ch-ink: #eaf0fa;
  --ch-ink-soft: #b7c1d4;
  --ch-ink-faint: #8b97ad;
  --ch-line: #2b3547;
  --ch-ask-bg: #3d7bff;
  --ch-ask-ink: #ffffff;
  --ch-reply-bg: #1f2938;
  --ch-reply-ink: #eaf0fa;
  --ch-accent: #ff7d33;
  --ch-accent-soft: #35251a;
  --ch-ok: #46c491;
  --ch-warn-bg: #2c2413;
  --ch-warn-line: #6b551f;
  --ch-warn-ink: #f0d492;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--ch-font);
  background: var(--ch-bg);
  color: var(--ch-ink);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ch-ask-bg); }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid var(--ch-accent);
  outline-offset: 2px;
  border-radius: 6px;
}

.ch-skip {
  position: absolute; left: -999px; top: 0;
  background: var(--ch-accent); color: var(--ch-accent-ink);
  padding: 10px 16px; border-radius: 0 0 10px 0; z-index: 100;
}
.ch-skip:focus { left: 0; }

/* ---------------- Top bar ---------------- */
.ch-topbar {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--ch-surface) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--ch-line);
}
.ch-topbar-in {
  max-width: var(--ch-maxw); margin: 0 auto; padding: 10px 16px;
  display: flex; align-items: center; gap: 12px;
}
.ch-brand {
  display: inline-flex; align-items: center; gap: 9px;
  font-weight: bold; color: var(--ch-ink); text-decoration: none; font-size: 17px;
}
.ch-brand svg { display: block; }
.ch-brand-name { white-space: nowrap; }
.ch-spacer { flex: 1; }

.ch-nav-toggle {
  display: none; background: transparent; border: 1px solid var(--ch-line);
  color: var(--ch-ink); border-radius: 10px; padding: 7px 10px; cursor: pointer;
}
.ch-nav {
  display: flex; align-items: center; gap: 4px; flex-wrap: wrap;
}
.ch-nav a {
  color: var(--ch-ink-soft); text-decoration: none; font-size: 15px;
  padding: 6px 10px; border-radius: 8px;
}
.ch-nav a:hover { background: var(--ch-bg-soft); color: var(--ch-ink); }
.ch-nav a[aria-current="page"] { color: var(--ch-accent); font-weight: bold; }

.ch-theme {
  background: transparent; border: 1px solid var(--ch-line); color: var(--ch-ink);
  border-radius: 10px; width: 38px; height: 34px; cursor: pointer; font-size: 15px;
}
.ch-theme:hover { background: var(--ch-bg-soft); }

@media (max-width: 640px) {
  .ch-nav-toggle { display: inline-block; }
  .ch-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--ch-surface); border-bottom: 1px solid var(--ch-line);
    padding: 8px; box-shadow: var(--ch-shadow);
  }
  .ch-nav.ch-nav--open { display: flex; }
  .ch-nav a { padding: 11px 12px; }
}

/* ---------------- Chat thread ---------------- */
.ch-main { max-width: var(--ch-maxw); margin: 0 auto; padding: 18px 16px 40px; }

.ch-crumbs { font-size: 13px; color: var(--ch-ink-faint); margin: 6px 2px 14px; }
.ch-crumbs a { color: var(--ch-ink-faint); }
.ch-crumbs span[aria-current] { color: var(--ch-ink-soft); }

.ch-thread { display: flex; flex-direction: column; gap: 16px; }

/* a message row */
.ch-msg { display: flex; gap: 10px; align-items: flex-end; max-width: 100%; }
.ch-msg--ask { flex-direction: row-reverse; }
.ch-msg--reply { flex-direction: row; }

.ch-avatar {
  flex: 0 0 auto; width: 38px; height: 38px; border-radius: 50%;
  background: var(--ch-accent-soft); display: grid; place-items: center;
  border: 1px solid var(--ch-line); overflow: hidden;
}
.ch-avatar svg { width: 26px; height: 26px; display: block; }
.ch-avatar--you {
  background: var(--ch-ask-bg); border-color: transparent; color: #fff;
  font-weight: bold; font-size: 15px;
}

.ch-bubble {
  position: relative; padding: 13px 16px; border-radius: var(--ch-radius);
  max-width: min(88%, 620px); box-shadow: var(--ch-shadow);
}
.ch-msg--ask .ch-bubble {
  background: var(--ch-ask-bg); color: var(--ch-ask-ink);
  border-bottom-right-radius: 5px;
}
.ch-msg--ask .ch-bubble a { color: #fff; text-decoration: underline; }
.ch-msg--reply .ch-bubble {
  background: var(--ch-reply-bg); color: var(--ch-reply-ink);
  border: 1px solid var(--ch-line); border-bottom-left-radius: 5px;
}

/* the assistant name label above a reply */
.ch-who { font-size: 12px; color: var(--ch-ink-faint); margin: 0 0 4px 50px; }
.ch-msg--reply + .ch-who { margin-top: -8px; }

/* headings inside bubbles keep semantics but read as chat text */
.ch-bubble h1, .ch-bubble h2, .ch-bubble h3 {
  font-family: var(--ch-font); line-height: 1.25; margin: 0 0 8px;
}
.ch-bubble h1 { font-size: 1.5em; }
.ch-bubble h2 { font-size: 1.28em; }
.ch-bubble h3 { font-size: 1.1em; }
.ch-bubble > *:last-child { margin-bottom: 0; }
.ch-bubble p { margin: 0 0 10px; }
.ch-bubble ul, .ch-bubble ol { margin: 0 0 10px; padding-left: 20px; }
.ch-bubble li { margin: 4px 0; }
.ch-lead { font-size: 1.05em; }

.ch-tag {
  display: inline-block; font-size: 12px; font-weight: bold;
  background: var(--ch-accent-soft); color: var(--ch-accent);
  border: 1px solid color-mix(in srgb, var(--ch-accent) 30%, transparent);
  padding: 2px 9px; border-radius: 999px; margin: 0 4px 4px 0;
}

/* ---------------- The code chat bubble (rotation unit) ---------------- */
.ch-codewrap {
  background: linear-gradient(135deg, var(--ch-accent-soft), var(--ch-reply-bg));
  border: 1px solid color-mix(in srgb, var(--ch-accent) 28%, var(--ch-line));
  border-radius: var(--ch-radius); border-bottom-left-radius: 5px;
  padding: 16px; box-shadow: var(--ch-shadow); max-width: min(92%, 620px);
}
.ch-codewrap p { margin: 0 0 10px; color: var(--ch-ink-soft); font-size: 14px; }
.ch-codeline {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  /* fixed min-height => zero CLS when the code swaps client-side */
  min-height: 56px;
}
.ch-codeval {
  flex: 1 1 190px; min-width: 0;
  background: var(--ch-surface); border: 2px dashed var(--ch-accent);
  border-radius: var(--ch-radius-sm); padding: 12px 14px;
  font-weight: bold; font-size: 1.35em; letter-spacing: .5px;
  color: var(--ch-ink); text-align: center; overflow: hidden; text-overflow: ellipsis;
  min-height: 52px; display: flex; align-items: center; justify-content: center;
}
.ch-send {
  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 8px;
  background: var(--ch-accent); color: var(--ch-accent-ink);
  border: none; border-radius: 999px; padding: 12px 20px; min-height: 52px;
  font-family: var(--ch-font); font-weight: bold; font-size: 16px; cursor: pointer;
  transition: transform .08s ease, filter .15s ease;
}
.ch-send:hover { filter: brightness(1.05); }
.ch-send:active { transform: translateY(1px); }
.ch-send--ok { background: var(--ch-ok); }
.ch-open {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 12px;
  background: var(--ch-ask-bg); color: #fff; text-decoration: none;
  border-radius: 999px; padding: 11px 18px; font-weight: bold; font-size: 15px;
}
.ch-open:hover { filter: brightness(1.06); }
.ch-codefoot { margin: 10px 0 0; font-size: 12.5px; color: var(--ch-ink-faint); }

/* ---------------- Stamps / notes ---------------- */
.ch-stamp {
  display: inline-flex; align-items: center; gap: 7px;
  background: color-mix(in srgb, var(--ch-ok) 14%, transparent);
  color: var(--ch-ok); border: 1px solid color-mix(in srgb, var(--ch-ok) 35%, transparent);
  padding: 5px 11px; border-radius: 999px; font-size: 13px; font-weight: bold;
}
.ch-flux {
  background: var(--ch-warn-bg); border: 1px solid var(--ch-warn-line);
  color: var(--ch-warn-ink); border-radius: var(--ch-radius-sm);
  padding: 12px 14px; margin: 10px 0; font-size: 14.5px;
}
.ch-flux strong { color: var(--ch-warn-ink); }
.ch-note {
  border-left: 4px solid var(--ch-accent); background: var(--ch-accent-soft);
  padding: 10px 14px; border-radius: 0 var(--ch-radius-sm) var(--ch-radius-sm) 0;
  margin: 10px 0; font-size: 14.5px;
}

.ch-source { font-size: 13px; color: var(--ch-ink-faint); }
.ch-source a { color: var(--ch-ink-soft); }

/* option grid (benefit "wat is het nu?") */
.ch-options { display: grid; gap: 10px; grid-template-columns: 1fr 1fr; margin: 10px 0; }
.ch-option {
  background: var(--ch-surface); border: 1px solid var(--ch-line);
  border-radius: var(--ch-radius-sm); padding: 12px;
}
.ch-option h3 { margin: 0 0 6px; font-size: 1em; }
.ch-option p { margin: 0; font-size: 13.5px; color: var(--ch-ink-soft); }
@media (max-width: 520px) { .ch-options { grid-template-columns: 1fr; } }

/* steps (HowTo) */
.ch-steps { list-style: none; counter-reset: ch-step; padding: 0; margin: 8px 0; }
.ch-steps li {
  position: relative; padding: 4px 0 12px 44px; margin: 0;
}
.ch-steps li::before {
  counter-increment: ch-step; content: counter(ch-step);
  position: absolute; left: 0; top: 2px; width: 30px; height: 30px;
  background: var(--ch-accent); color: #fff; border-radius: 50%;
  display: grid; place-items: center; font-weight: bold; font-size: 15px;
}

/* FAQ as disclosure */
.ch-faq { display: flex; flex-direction: column; gap: 8px; margin: 8px 0; }
.ch-faq details {
  background: var(--ch-surface); border: 1px solid var(--ch-line);
  border-radius: var(--ch-radius-sm); padding: 4px 14px;
}
.ch-faq summary {
  cursor: pointer; font-weight: bold; padding: 9px 0; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
}
.ch-faq summary::-webkit-details-marker { display: none; }
.ch-faq summary::after { content: "+"; color: var(--ch-accent); font-size: 22px; line-height: 1; }
.ch-faq details[open] summary::after { content: "\2013"; }
.ch-faq details p { margin: 0 0 12px; color: var(--ch-ink-soft); }

/* blog list */
.ch-posts { display: flex; flex-direction: column; gap: 12px; margin: 8px 0; }
.ch-post {
  display: block; background: var(--ch-surface); border: 1px solid var(--ch-line);
  border-radius: var(--ch-radius-sm); padding: 14px 16px; text-decoration: none; color: inherit;
}
.ch-post:hover { border-color: var(--ch-accent); }
.ch-post h3 { margin: 0 0 5px; font-size: 1.08em; color: var(--ch-ink); }
.ch-post p { margin: 0; font-size: 14px; color: var(--ch-ink-soft); }
.ch-post-meta { font-size: 12px; color: var(--ch-ink-faint); margin-top: 6px; }

/* figure / illustration */
.ch-fig { margin: 8px 0; }
.ch-fig svg { width: 100%; height: auto; display: block; border-radius: var(--ch-radius-sm); border: 1px solid var(--ch-line); background: var(--ch-surface); }
.ch-fig img { width: 100%; height: auto; display: block; border-radius: var(--ch-radius-sm); border: 1px solid var(--ch-line); background: var(--ch-surface); object-fit: cover; }
.ch-fig figcaption { font-size: 12.5px; color: var(--ch-ink-faint); margin-top: 6px; }

.ch-quick { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 2px; }
.ch-quick a {
  background: var(--ch-bg-soft); color: var(--ch-ink-soft); text-decoration: none;
  border: 1px solid var(--ch-line); border-radius: 999px; padding: 7px 13px; font-size: 14px;
}
.ch-quick a:hover { border-color: var(--ch-accent); color: var(--ch-ink); }

table.ch-table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 8px 0; }
table.ch-table th, table.ch-table td { border: 1px solid var(--ch-line); padding: 8px 10px; text-align: left; }
table.ch-table th { background: var(--ch-bg-soft); }
.ch-scroll { overflow-x: auto; }

/* ---------------- Footer ---------------- */
.ch-foot {
  border-top: 1px solid var(--ch-line); background: var(--ch-surface);
  margin-top: 20px;
}
.ch-foot-in { max-width: var(--ch-maxw); margin: 0 auto; padding: 22px 16px 34px; font-size: 14px; color: var(--ch-ink-soft); }
.ch-foot h2 { font-size: 15px; margin: 0 0 8px; color: var(--ch-ink); }
.ch-foot-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 18px; }
.ch-foot-cols a { display: block; color: var(--ch-ink-soft); text-decoration: none; padding: 3px 0; }
.ch-foot-cols a:hover { color: var(--ch-accent); }
.ch-disclose {
  background: var(--ch-bg-soft); border: 1px solid var(--ch-line);
  border-radius: var(--ch-radius-sm); padding: 12px 14px; font-size: 13px; color: var(--ch-ink-faint);
}
@media (max-width: 560px) { .ch-foot-cols { grid-template-columns: 1fr 1fr; } }

.ch-byline { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ch-ink-faint); margin-top: 14px; }
.ch-byline .ch-avatar { width: 30px; height: 30px; }