/* Clear Sky components. Plain CSS for a static site: no JavaScript required.
   Load after tokens.css. Every class is prefixed cs- . Light theme only. */

/* ---------- Base ---------- */
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; color: var(--text); }
a { color: var(--link); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: var(--border-control) solid var(--focus-ring); outline-offset: 2px; }
img { max-width: 100%; height: auto; }

.cs-container { max-width: var(--content-max); margin-inline: auto; padding-inline: var(--gutter-phone); box-sizing: border-box; }
@media (min-width: 720px) { .cs-container { padding-inline: var(--gutter-desktop); } }
.cs-measure { max-width: var(--measure); }
.cs-eyebrow { font-family: var(--font-sans); font-size: 12px; line-height: 1.4; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin: 0; }
.cs-link-secondary { color: var(--accent); }
.cs-placeholder {
  display: inline; padding: 0 var(--space-1);
  border: var(--border-hairline) dashed var(--text-secondary); border-radius: var(--radius-sm);
  color: var(--text-secondary); font-style: normal; white-space: normal;
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
}
.cs-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ---------- Header ---------- */
.cs-header { background: var(--background); border-bottom: var(--border-hairline) solid var(--line); }
.cs-header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); padding-block: var(--space-6); }
.cs-logo { font-family: var(--font-display); font-weight: 600; font-size: 20px; line-height: 1.2; color: var(--primary); text-decoration: none; }
.cs-logo:hover { text-decoration: underline; text-decoration-thickness: 1px; }
.cs-nav ul { display: flex; gap: var(--space-6); list-style: none; margin: 0; padding: 0; }
.cs-nav a {
  display: inline-block; padding-block: var(--space-1);
  font-size: 16px; line-height: 1.5; color: var(--text); text-decoration: none;
  border-bottom: var(--border-control) solid transparent;
}
.cs-nav a:hover { color: var(--primary); border-bottom-color: var(--line); }
.cs-nav a[aria-current="page"] { color: var(--primary); font-weight: 600; border-bottom-color: var(--accent); }
.cs-menu { display: none; }
.cs-menu > summary {
  list-style: none; cursor: pointer; min-height: var(--target-min); box-sizing: border-box;
  display: inline-flex; align-items: center; padding: 0 var(--space-4);
  border: var(--border-control) solid var(--primary); border-radius: var(--radius-md);
  color: var(--primary); background: var(--surface); font-size: 16px; font-weight: 600;
}
.cs-menu > summary::-webkit-details-marker { display: none; }
.cs-menu[open] > summary { background: var(--tint); }
.cs-menu ul { list-style: none; padding: 0; border-top: var(--border-hairline) solid var(--line); }
.cs-menu li { border-bottom: var(--border-hairline) solid var(--line); }
.cs-menu a { display: block; padding: var(--space-3) 0; color: var(--text); text-decoration: none; font-size: 17px; }
.cs-menu a[aria-current="page"] { color: var(--primary); font-weight: 600; text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 6px; }
/* Compact layout: phones, or forced with .cs-header--compact. The open menu drops below the header bar. */
.cs-header__inner { position: relative; }
.cs-header--compact .cs-header__inner { padding-block: var(--space-4); }
.cs-header--compact .cs-nav { display: none; }
.cs-header--compact .cs-menu { display: block; }
.cs-menu ul { position: absolute; z-index: 10; top: 100%; left: var(--gutter-phone); right: var(--gutter-phone); margin: 0; background: var(--background); }
@media (max-width: 719px) {
  .cs-header__inner { padding-block: var(--space-4); }
  .cs-nav { display: none; }
  .cs-menu { display: block; }
}

/* ---------- Buttons ---------- */
.cs-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: var(--target-min); box-sizing: border-box; padding: var(--space-3) var(--space-5);
  border: var(--border-control) solid var(--primary); border-radius: var(--radius-md);
  font-family: var(--font-sans); font-size: 16px; line-height: 1.25; font-weight: 600;
  text-decoration: none; cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}
.cs-btn--primary { background: var(--primary); color: var(--on-primary); }
.cs-btn--primary:hover { background: var(--text); border-color: var(--text); color: var(--on-primary); text-decoration: none; }
.cs-btn--secondary { background: var(--surface); color: var(--primary); }
.cs-btn--secondary:hover { background: var(--tint); text-decoration: none; }
.cs-btn-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }

/* ---------- Credential chip ---------- */
.cs-chip-row { display: flex; flex-wrap: wrap; gap: var(--space-2); list-style: none; margin: 0; padding: 0; }
.cs-chip {
  display: inline-flex; align-items: center; padding: 6px var(--space-3);
  background: var(--tint); color: var(--primary); border-radius: var(--radius-pill);
  font-size: 14px; line-height: 1.3; font-weight: 700; letter-spacing: .02em;
}

/* ---------- Proof-of-concept badge and notice ---------- */
.cs-poc {
  display: inline-block; padding: 3px var(--space-2);
  border: var(--border-hairline) solid var(--accent); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--accent);
  font-size: 12px; line-height: 1.4; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  white-space: nowrap;
}
.cs-poc-notice {
  display: flex; gap: var(--space-4); align-items: flex-start;
  padding: var(--space-4) var(--space-5); background: var(--surface);
  border: var(--border-hairline) solid var(--accent); border-radius: var(--radius-lg);
}
.cs-poc-notice p { margin: 0; font-size: 16px; line-height: 1.55; color: var(--text); }
@media (max-width: 599px) { .cs-poc-notice { flex-direction: column; gap: var(--space-3); } }

/* ---------- Cards (shared) ---------- */
.cs-card { background: var(--surface); border: var(--border-hairline) solid var(--line); border-radius: var(--radius-lg); padding: var(--space-6); box-sizing: border-box; }

/* ---------- Tool card ---------- */
.cs-tool-grid { display: grid; gap: var(--space-6); grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.cs-tool-card { display: flex; flex-direction: column; gap: var(--space-3); }
.cs-tool-card__head { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-2); }
.cs-tool-card__title { margin: 0; font-size: 20px; line-height: 1.3; }
.cs-tool-card__desc { margin: 0; color: var(--text); }
.cs-tool-card__foot { margin-top: auto; padding-top: var(--space-3); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-3); }
.cs-tool-card__link { font-weight: 600; }
.cs-tool-card--planned .cs-tool-card__desc { color: var(--text-secondary); }
.cs-tool-card__shot { margin: 0; }
.cs-tool-card__shot img { display: block; width: 100%; border: var(--border-hairline) solid var(--line); border-radius: var(--radius-md); }
.cs-tool-card--featured { display: grid; gap: var(--space-6); align-items: center; }
@media (min-width: 800px) { .cs-tool-card--featured { grid-template-columns: 5fr 6fr; } }
.cs-tool-card--featured .cs-tool-card__body { display: flex; flex-direction: column; gap: var(--space-3); }
.cs-tool-card--featured .cs-tool-card__title { font-size: 22px; }

.cs-status { display: inline-flex; align-items: center; gap: var(--space-2); padding: 2px 10px; border-radius: var(--radius-pill); font-size: 14px; line-height: 1.5; font-weight: 600; }
.cs-status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; box-sizing: border-box; }
.cs-status--live { background: var(--tint); color: var(--primary); }
.cs-status--live::before { background: var(--primary); }
.cs-status--planned { background: var(--surface); color: var(--text-secondary); border: var(--border-hairline) solid var(--line); }
.cs-status--planned::before { border: 1.5px solid var(--text-secondary); }

/* ---------- Result card ---------- */
.cs-results { display: grid; gap: var(--space-6); grid-template-columns: 1fr; list-style: none; margin: 0; padding: 0; }
@media (min-width: 900px) {
  .cs-results { grid-template-columns: repeat(12, 1fr); }
  .cs-results > * { grid-column: span 4; }
  .cs-results > :nth-child(-n+4) { grid-column: span 3; }
}
.cs-result { display: flex; flex-direction: column; gap: var(--space-3); }
.cs-result__headline { margin: 0; font-family: var(--font-display); font-size: 20px; line-height: 1.3; font-weight: 600; color: var(--text); }
.cs-result__text { margin: 0; font-size: 16px; line-height: 1.6; color: var(--text); }

/* ---------- Portrait ---------- */
.cs-portrait { margin: 0; width: 100%; max-width: 320px; }
.cs-portrait img, .cs-portrait__frame {
  display: block; width: 100%; aspect-ratio: 4 / 5; object-fit: cover; box-sizing: border-box;
  border: var(--border-hairline) solid var(--line); border-radius: var(--radius-lg); background: var(--tint);
}
.cs-portrait__frame { display: flex; align-items: center; justify-content: center; padding: var(--space-6); text-align: center; border-style: dashed; border-color: var(--text-secondary); color: var(--text-secondary); font-size: 14px; }
.cs-about { display: grid; gap: var(--space-8); }
@media (min-width: 800px) { .cs-about { grid-template-columns: 280px minmax(0, 1fr); align-items: start; } }

/* ---------- Footer ---------- */
.cs-footer { border-top: var(--border-hairline) solid var(--line); background: var(--background); }
.cs-footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: var(--space-4) var(--space-8); padding-block: var(--space-8); }
.cs-footer__name { font-family: var(--font-display); font-weight: 600; font-size: 18px; line-height: 1.3; color: var(--text); margin: 0 0 var(--space-1); }
.cs-footer__meta { margin: 0; font-size: 14px; line-height: 1.5; color: var(--text-secondary); }
.cs-footer__links { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-6); list-style: none; margin: 0; padding: 0; font-size: 14px; }

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* Forced compact header (previews, narrow containers) uses the phone gutter */
.cs-header--compact .cs-container { padding-inline: var(--gutter-phone); }