/* ============================================================================
   fsa-kits.css — shared styling for the /kits/ storefront.
   Consumes existing canonical tokens from css/fsa-brand.css. Defines no new
   design tokens, per the FSA rule: extend, never introduce.
   Created 2026-07-25 for MVP-001 (commercial delivery architecture).
   ============================================================================ */

:root {
  --kits-maxw: 840px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font: 16px/1.65 var(--font-body), -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  display: block;
  height: 2px;
  background: var(--brand-gradient-horizontal);
}

.wrap { max-width: var(--kits-maxw); margin: 0 auto; padding: 0 22px; }

/* --- Skip link --- */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--color-elevated); color: var(--color-text);
  padding: 10px 16px; border-radius: 0 0 8px 0; z-index: 50;
}
.skip-link:focus { left: 0; }

/* --- Nav --- */
nav.top {
  display: flex; justify-content: space-between; align-items: center; gap: 14px;
  padding: 14px 22px; max-width: var(--kits-maxw); margin: 0 auto; flex-wrap: wrap;
  font-family: var(--font-sans);
}
nav.top .brand { font-weight: 700; font-size: 15px; color: var(--color-text); text-decoration: none; }
nav.top .brand b { color: var(--color-mint); }
nav.top ul { list-style: none; display: flex; gap: 14px; padding: 0; margin: 0; flex-wrap: wrap; font-size: 13.5px; }
nav.top a { color: var(--color-muted); text-decoration: none; padding: 6px 0; }
nav.top a:hover, nav.top a:focus-visible { color: var(--color-text); }

/* --- Typography --- */
h1 { font-family: var(--font-serif); font-size: 34px; line-height: 1.18; margin: 0 0 14px; letter-spacing: -.01em; }
h2 { font-family: var(--font-serif); font-size: 24px; margin: 42px 0 12px; letter-spacing: -.005em; }
h3 { font-size: 17px; margin: 18px 0 6px; }
p { margin: 10px 0; }
a { color: var(--color-mint); }
.eyebrow {
  color: var(--color-mint); font-size: 12px; letter-spacing: .14em;
  text-transform: uppercase; margin: 0 0 14px; font-weight: 600; font-family: var(--font-sans);
}
.lede { color: var(--color-text); font-size: 18px; line-height: 1.5; margin: 0 0 16px; }
.small { font-size: 13.5px; color: var(--color-muted); }
ul.clean { padding-left: 18px; margin: 8px 0; }
ul.clean li { margin: 7px 0; }

header.hero { padding: 30px 22px 6px; max-width: var(--kits-maxw); margin: 0 auto; }

/* --- Language switch --- */
.langswitch {
  display: inline-flex; gap: 8px; align-items: center;
  font-family: var(--font-sans); font-size: 13px; margin: 0 0 18px;
}
.langswitch a {
  border: 1px solid var(--color-border); border-radius: 8px;
  padding: 5px 11px; text-decoration: none; color: var(--color-text);
}
.langswitch a[aria-current="true"] { border-color: var(--color-mint); color: var(--color-mint); }

/* --- Cards and callouts --- */
.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 14px; padding: 18px; margin: 14px 0;
}
.card h3 { margin-top: 0; }

.disclaimer {
  background: var(--color-elevated); border: 1px solid var(--color-border-strong);
  border-left: 4px solid var(--color-warning); border-radius: 10px;
  padding: 15px 17px; margin: 18px 0; font-size: 14.5px;
}
.disclaimer strong { color: var(--color-text-strong); }

.note {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-mint); border-radius: 10px;
  padding: 15px 17px; margin: 18px 0; font-size: 14.5px;
}

/* --- Buttons --- */
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0; }
.btn {
  display: inline-block; padding: 14px 22px; border-radius: 10px; text-decoration: none;
  font-weight: 600; font-size: 15px; font-family: var(--font-sans);
  border: 1px solid transparent; cursor: pointer;
}
.btn-primary {
  background: linear-gradient(var(--color-bg), var(--color-bg)) padding-box, var(--brand-gradient) border-box;
  border: 1.6px solid transparent; color: var(--color-text);
}
.btn-primary:hover, .btn-primary:focus-visible { filter: brightness(1.12); }
.btn-secondary { border: 1px solid var(--color-border); color: var(--color-text); background: transparent; }
.btn-secondary:hover, .btn-secondary:focus-visible { border-color: var(--color-mint); color: var(--color-mint); }
.btn.is-pending {
  opacity: .6; cursor: not-allowed;
  background: transparent; border: 1px dashed var(--color-border-strong); color: var(--color-muted);
}

/* --- Price block --- */
.pricebox {
  background: var(--color-surface); border: 1px solid var(--color-border-strong);
  border-radius: 16px; padding: 22px; margin: 20px 0;
}
.pricebox .amount {
  font-family: var(--font-sans); font-size: 40px; font-weight: 700;
  color: var(--color-text-strong); line-height: 1.1;
}
.pricebox .terms { font-size: 14px; color: var(--color-muted); margin-top: 4px; }
.pricebox ul.clean li { font-size: 15px; }

/* --- Accordion --- */
details.qa {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; margin: 8px 0; overflow: hidden;
}
details.qa summary {
  padding: 14px 16px; cursor: pointer; font-weight: 600;
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 10px;
  font-family: var(--font-sans); font-size: 15.5px;
}
details.qa summary::-webkit-details-marker { display: none; }
details.qa summary .chev { color: var(--color-muted); }
details.qa[open] summary .chev { transform: rotate(90deg); display: inline-block; }
details.qa .body {
  padding: 2px 16px 14px; color: var(--color-text);
  font-size: 15px; border-top: 1px solid var(--color-border);
}
details.qa .body .src { font-size: 13px; color: var(--color-muted); margin-top: 10px; }

/* --- Contents grid --- */
.contents { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin: 14px 0; }
@media (max-width: 680px) { .contents { grid-template-columns: 1fr; } }
.item {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 12px; padding: 14px 16px;
}
.item .nm { font-weight: 600; margin-bottom: 3px; }
.item .lbl { font-size: 13.5px; color: var(--color-muted); }

/* --- Kit index cards --- */
.kitcard {
  display: block; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 14px; padding: 20px; margin: 12px 0; text-decoration: none; color: var(--color-text);
}
.kitcard:hover, .kitcard:focus-visible { border-color: var(--color-mint); }
.kitcard .nm { font-weight: 700; font-size: 18px; margin-bottom: 4px; }
.kitcard .lbl { color: var(--color-muted); font-size: 14.5px; }
.kitcard .tag {
  display: inline-block; margin-top: 10px; font-size: 12px; font-family: var(--font-sans);
  letter-spacing: .08em; text-transform: uppercase; color: var(--color-mint);
}

/* --- Email capture --- */
.emailbox {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 14px; padding: 20px; margin: 22px 0;
}
.emailbox form { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.emailbox label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--color-text); }
.emailbox input[type="email"] {
  flex: 1; min-width: 220px; padding: 12px 14px;
  border: 1px solid var(--color-border-strong); border-radius: 10px;
  background: var(--color-deepest); color: var(--color-text); font-size: 16px;
}
.emailbox input[type="email"]:focus-visible { outline: 2px solid var(--color-mint); outline-offset: 1px; }
.emailbox .status { margin-top: 10px; font-size: 14.5px; }

/* --- Steps --- */
ol.steps { padding-left: 20px; margin: 10px 0; }
ol.steps li { margin: 9px 0; }

/* --- Footer --- */
footer {
  margin-top: 40px; padding: 28px 22px; text-align: center;
  color: var(--color-muted); font-size: 13px; border-top: 1px solid var(--color-border);
}
footer a { color: var(--color-mint); text-decoration: none; }
footer .net { margin-top: 10px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* --- Focus visibility everywhere --- */
a:focus-visible, button:focus-visible, summary:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--color-mint);
  outline-offset: 2px;
}

@media (max-width: 680px) {
  h1 { font-size: 27px; }
  .lede { font-size: 17px; }
  .pricebox .amount { font-size: 34px; }
  nav.top ul { order: 3; width: 100%; justify-content: flex-start; gap: 10px; font-size: 12.5px; }
  .btn { width: 100%; text-align: center; }
}

@media print {
  nav.top, .cta-row, .emailbox, .langswitch { display: none; }
  body { background: #fff; color: #000; }
}