/* =============================================================================
   FIELD STATION: POLICIES
   Layout for /policies/. Reuses the Control Panel chrome from the landing page
   (panel wrap, header, spec strip, footer) with a reading column for policy text.
   Pair with css/alternate/colors_and_type.css and css/alternate/field-station.css.
   ============================================================================= */

:root {
  --panel-bg: var(--fs-paper);
  --panel-border: var(--fs-line);
  --panel-muted: var(--fs-muted);
  --panel-ink: var(--fs-ink);
  --panel-accent: var(--fs-accent);
  --panel-shade: var(--fs-paper-shade);
}

[data-theme="dark"] {
  --panel-bg: #2E3440;
  --panel-border: #4C566A;
  --panel-muted: #9AA5B8;
  --panel-ink: #FCFCFD;
  --panel-accent: #88C0D0;
  --panel-shade: #242933;
}

body {
  background: var(--panel-bg);
  color: var(--panel-ink);
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; top: -100px; left: 10px; z-index: 1000;
  background: var(--panel-accent); color: #2E3440;
  padding: 10px 20px; font: 600 14px/1 var(--fs-font-mono); text-decoration: none;
}
.skip-link:focus { top: 10px; }

/* ── Chrome ─────────────────────────────────────────────────────────────── */

.panel-wrap {
  max-width: 1440px; margin: 0 auto; min-height: 100vh;
  display: flex; flex-direction: column;
  border-inline: 1px solid var(--panel-border);
}

.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px; border-bottom: 1px solid var(--panel-border);
  background: var(--panel-bg); position: sticky; top: 0; z-index: 100;
}
.panel-header .fs-wordmark { color: var(--panel-ink); font-size: 11px; white-space: nowrap; }
.panel-header .fs-wordmark span { color: var(--panel-accent); }

.header-actions { display: flex; align-items: center; gap: 12px; }
.header-socials { display: flex; gap: 4px; align-items: center; }
.toggle-wrap { display: flex; align-items: center; }
.fs-social-icon { padding: 4px; border-radius: 2px; }
.fs-social-icon:hover, .fs-social-icon:focus-visible { color: var(--panel-accent) !important; }
.fs-social-icon:focus-visible { outline: 2px solid var(--panel-accent); outline-offset: 2px; }

.btn-ctc, .panel-header .fs-theme-toggle {
  font: 500 10px/1 var(--fs-font-mono); letter-spacing: .1em; text-transform: uppercase;
  text-decoration: none; color: var(--panel-muted);
  border: 1px solid var(--panel-border); background: transparent; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  height: 26px; padding: 0 12px; transition: border-color .2s ease, color .2s ease;
}
.panel-header .fs-theme-toggle { width: 26px; padding: 0; }
.btn-ctc:hover, .btn-ctc:focus-visible,
.panel-header .fs-theme-toggle:hover, .panel-header .fs-theme-toggle:focus-visible {
  border-color: var(--panel-accent); color: var(--panel-accent);
}
.btn-ctc[aria-current="page"] { color: var(--panel-ink); border-color: var(--panel-ink); }
.btn-ctc:focus-visible, .panel-header .fs-theme-toggle:focus-visible {
  outline: 2px solid var(--panel-accent); outline-offset: 2px;
}

.channel-label {
  font: 500 10px/1 var(--fs-font-mono); letter-spacing: .1em;
  color: var(--panel-accent); text-transform: uppercase;
}

.spec-strip {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  border-top: 1px solid var(--panel-border); border-bottom: 1px solid var(--panel-border);
  background: var(--panel-shade);
}
.spec-item {
  padding: 18px 28px; border-right: 1px solid var(--panel-border);
  display: flex; flex-direction: column; gap: 8px;
}
.spec-item:last-child { border-right: none; }
.spec-item-label {
  font: 500 10px/1 var(--fs-font-mono); letter-spacing: .08em;
  color: var(--panel-muted); text-transform: uppercase;
}
.spec-item-value { font: 400 12px/1.4 var(--fs-font-mono); color: var(--panel-ink); }
.spec-item-value a { color: var(--panel-accent); text-decoration: none; }
.spec-item-value a:hover { text-decoration: underline; text-underline-offset: .2em; }

.panel-footer {
  margin-top: auto; padding: 24px 28px; border-top: 1px solid var(--panel-border);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  font: 400 10px/1.6 var(--fs-font-mono); color: var(--panel-muted);
  text-transform: uppercase; letter-spacing: .1em;
}
.panel-footer a { color: inherit; }

/* ── Page header ────────────────────────────────────────────────────────── */

.policy-hero { padding: 56px 28px 40px; }

.policy-crumbs {
  font: 500 11px/1.4 var(--fs-font-mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--panel-muted); margin-bottom: 28px;
}
.policy-crumbs a { color: var(--panel-muted); text-decoration: none; }
.policy-crumbs a:hover { color: var(--panel-accent); }
.policy-crumbs .sep { color: var(--panel-accent); margin-inline: .5em; }
.policy-crumbs [aria-current] { color: var(--panel-ink); }

.policy-title {
  font: 500 clamp(2rem, 5vw, 3.5rem)/1.05 var(--fs-font-mono);
  letter-spacing: -0.03em; color: var(--panel-ink); max-width: 20ch;
  text-wrap: balance;
}
.policy-summary {
  font: 400 1.125rem/1.6 var(--fs-font-sans); color: var(--panel-muted);
  max-width: 60ch; margin-top: 20px;
}

/* ── Reading layout ─────────────────────────────────────────────────────── */

.policy-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 280px;
  border-bottom: 1px solid var(--panel-border);
}

.policy-index {
  border-left: 1px solid var(--panel-border); padding: 32px 0;
}
.policy-index .channel-label { padding: 0 28px 16px; display: block; }
.policy-index ul { list-style: none; padding: 0; position: sticky; top: 72px; }
.policy-index a {
  display: block; padding: 9px 28px; border-left: 2px solid transparent;
  font: 400 13px/1.35 var(--fs-font-sans); color: var(--panel-muted); text-decoration: none;
}
.policy-index a:hover, .policy-index a:focus-visible {
  color: var(--panel-ink); background: var(--panel-shade); outline: none;
}
.policy-index a[aria-current="page"] {
  color: var(--panel-ink); font-weight: 600; border-left-color: var(--panel-accent);
}

.policy-prose { padding: 40px 56px 72px; color: var(--panel-ink); }
.policy-prose h2 {
  font: 600 1.375rem/1.3 var(--fs-font-mono); letter-spacing: -0.01em;
  margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--panel-border);
}
.policy-prose h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }
.policy-prose h3 { font: 600 1.0625rem/1.4 var(--fs-font-sans); margin-top: 2rem; }
.policy-prose p, .policy-prose li { color: var(--panel-ink); }
.policy-prose a { color: var(--panel-accent); text-decoration: underline; text-underline-offset: .15em; }
.policy-prose strong { font-weight: 600; }
.policy-prose ol li::marker { font-family: var(--fs-font-mono); color: var(--panel-muted); }
.policy-prose ul li::marker { color: var(--panel-accent); }

.table-wrap { overflow-x: auto; border: 1px solid var(--panel-border); }
.policy-prose table { width: 100%; border-collapse: collapse; font: 400 14px/1.5 var(--fs-font-sans); }
.policy-prose th {
  text-align: left; vertical-align: bottom; padding: 10px 14px;
  font: 500 10px/1.3 var(--fs-font-mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--panel-muted); background: var(--panel-shade); border-bottom: 1px solid var(--panel-border);
}
.policy-prose td { padding: 12px 14px; vertical-align: top; border-bottom: 1px solid var(--panel-border); }
.policy-prose tr:last-child td { border-bottom: none; }

/* ── Index page ─────────────────────────────────────────────────────────── */

.policy-list { list-style: none; padding: 0; border-top: 1px solid var(--panel-border); }
.policy-list a {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 32px; align-items: center;
  padding: 22px 28px; border-bottom: 1px solid var(--panel-border);
  color: inherit; text-decoration: none; transition: background .15s ease;
}
.policy-list a:hover, .policy-list a:focus-visible { background: var(--panel-shade); outline: none; }
.policy-list a:focus-visible { box-shadow: inset 2px 0 0 var(--panel-accent); }
.policy-list .name { font: 500 1.25rem/1.25 var(--fs-font-mono); letter-spacing: -0.01em; color: var(--panel-ink); }
.policy-list .desc { font: 400 14px/1.5 var(--fs-font-sans); color: var(--panel-muted); grid-column: 1; }
.policy-list .go {
  grid-column: 2; grid-row: 1 / span 2;
  font: 500 12px/1 var(--fs-font-mono); letter-spacing: .05em; text-transform: uppercase;
  color: var(--panel-accent); opacity: .7; transition: opacity .2s ease, transform .2s ease;
}
.policy-list a:hover .go, .policy-list a:focus-visible .go { opacity: 1; transform: translateX(4px); }

.policy-note {
  padding: 32px 28px 48px; font: 400 15px/1.6 var(--fs-font-sans); color: var(--panel-muted);
  max-width: 70ch;
}
.policy-note strong { color: var(--panel-ink); }

/* ── Small screens ──────────────────────────────────────────────────────── */

@media (max-width: 900px) {
  .policy-layout { grid-template-columns: 1fr; }
  .policy-index { border-left: none; border-top: 1px solid var(--panel-border); }
  .policy-index ul { position: static; }
  .policy-prose { padding: 32px 20px 56px; }
}

@media (max-width: 768px) {
  .panel-wrap { border-inline: none; }
  .panel-header { padding: 12px 20px; }
  .policy-hero { padding: 40px 20px 32px; }
  .spec-strip { grid-template-columns: 1fr 1fr; }
  .spec-item { padding: 14px 20px; border-right: none; border-bottom: 1px solid var(--panel-border); }
  .policy-list a { padding: 18px 20px; }
  .policy-note, .panel-footer { padding-inline: 20px; }
  .policy-index .channel-label, .policy-index a { padding-inline: 20px; }
}

@media (max-width: 480px) {
  .panel-header { flex-wrap: wrap; row-gap: 10px; }
  .spec-strip { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

@media print {
  .panel-header, .policy-index, .panel-footer, .skip-link { display: none; }
  .policy-layout { display: block; }
  .panel-wrap { border: none; }
}