/* Cyphershell Technologies storefront v03 — monochrome + US flag colors only in flag SVG */
@font-face {
  font-family: "Barlow Condensed";
  src: url("../assets/fonts/BarlowCondensed-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Barlow Condensed";
  src: url("../assets/fonts/BarlowCondensed-Medium.ttf") format("truetype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Barlow Condensed";
  src: url("../assets/fonts/BarlowCondensed-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Barlow Condensed";
  src: url("../assets/fonts/BarlowCondensed-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #000000;
  --bg-elevated: #0a0a0a;
  --surface: #111111;
  --surface-2: #1a1a1a;
  --border: #2e2e2e;
  --border-strong: #4a4a4a;
  --text: #ffffff;
  --text-muted: #b3b3b3;
  --text-dim: #8a8a8a;
  --focus: #ffffff;
  --warn: #e6e6e6;
  --warn-bg: #1f1f1f;
  --flag-red: #B22234;
  --flag-blue: #3C3B6E;
  --max: 72rem;
  --font: "Barlow Condensed", "Segoe UI", system-ui, sans-serif;
  --space-2: 0.75rem;
  --space-3: 1.25rem;
  --space-4: 2rem;
  --space-5: 3.5rem;
  --space-6: 5rem;
}

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

body {
  margin: 0;
  min-height: 100vh;
  font: 400 1.125rem/1.55 var(--font);
  color: var(--text);
  background: var(--bg);
}

img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--text); text-decoration: underline; text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { color: var(--text-muted); }
a:focus-visible, summary:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  background: var(--text);
  color: var(--bg);
  padding: 0.55rem 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

.preview-banner {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--warn-bg);
  color: var(--warn);
  border-bottom: 1px solid var(--border-strong);
  padding: 0.55rem 1rem;
  text-align: center;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--border-strong);
  background: var(--bg);
  padding: 0.9rem 0;
}
.brand-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2) var(--space-3);
}

.brand-cluster {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
  flex: 1 1 auto;
  text-decoration: none;
  color: var(--text);
}
.brand-cluster:hover { color: var(--text); }
.flag {
  flex: 0 0 auto;
  width: 2.1rem;
  height: auto;
  border: 1px solid var(--border-strong);
}
.wordmark {
  font-family: var(--font);
  font-weight: 700;
  font-size: clamp(0.72rem, 2.8vw, 1.15rem);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1.15;
  margin: 0;
  white-space: normal;
  max-width: 100%;
}
@media (max-width: 360px) {
  .wordmark {
    letter-spacing: 0.1em;
    font-size: 0.68rem;
  }
  .flag { width: 1.7rem; }
}

.nav-desktop {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.15rem 1.25rem;
  flex-wrap: wrap;
}
.nav-desktop a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.nav-desktop a:hover,
.nav-desktop a.site-nav-current { color: var(--text); }

.nav-mobile { display: block; width: 100%; }
.nav-mobile > summary {
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--text);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  padding: 0.6rem 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-mobile > summary::-webkit-details-marker { display: none; }
.nav-mobile > summary::after { content: "Menu"; color: var(--text-muted); }
.nav-mobile[open] > summary::after { content: "Close"; }
.nav-mobile .nav {
  list-style: none;
  margin: 0.45rem 0 0;
  padding: 0;
  border: 1px solid var(--border-strong);
  background: var(--surface);
}
.nav-mobile .nav a {
  display: block;
  padding: 0.75rem 0.9rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
}
.nav-mobile .nav a:first-child { border-top: 0; }
.nav-mobile .nav a.site-nav-current { background: var(--surface-2); }

@media (min-width: 820px) {
  .nav-mobile { display: none; }
  .nav-desktop { display: flex; }
  .wordmark { white-space: nowrap; }
}

.hero {
  padding: var(--space-6) 0 var(--space-5);
  border-bottom: 1px solid var(--border-strong);
}
.hero-kicker {
  margin: 0 0 var(--space-3);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.hero h1 {
  margin: 0 0 var(--space-3);
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-weight: 700;
  max-width: 14ch;
}
.lede {
  margin: 0 0 var(--space-4);
  color: var(--text-muted);
  max-width: 38rem;
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.meta-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
}
.meta-pills li {
  border: 1px solid var(--border-strong);
  background: var(--surface);
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}

.cta-row { display: flex; flex-wrap: wrap; gap: 0.65rem; }
.btn {
  display: inline-block;
  padding: 0.8rem 1.2rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  font-size: 0.9rem;
  border: 1px solid var(--border-strong);
}
.btn-primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.btn-primary:hover { background: var(--text-muted); color: var(--bg); }
.btn-ghost {
  background: transparent;
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--text); }
.btn-note {
  margin: 0.9rem 0 0;
  color: var(--text-dim);
  font-size: 1rem;
}

section {
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--border);
}
section h2 {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}
.rule {
  height: 1px;
  background: var(--border-strong);
  border: 0;
  margin: 0 0 var(--space-3);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  padding: 1.25rem 1.3rem;
}
.card strong {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--text);
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.card p { color: var(--text-muted); margin-top: 0; }
.card p:last-child { margin-bottom: 0; }

.grid { display: grid; gap: 1px; background: var(--border-strong); border: 1px solid var(--border-strong); }
.grid > * { background: var(--surface); }
.grid-1 { grid-template-columns: 1fr; }
@media (min-width: 700px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.status {
  display: inline-block;
  width: auto;
  max-width: 100%;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--border-strong);
  color: var(--text);
  background: var(--bg);
  vertical-align: baseline;
  white-space: normal;
}
.status-inline {
  display: inline;
  padding: 0.1rem 0.35rem;
  letter-spacing: 0.06em;
  line-height: inherit;
  white-space: normal;
}
.card-outputs {
  margin: 0.4rem 0 0.85rem;
  padding-left: 1.1rem;
  color: var(--text-muted);
}
.card-outputs li { margin-bottom: 0.25rem; }
.empty-msg {
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  padding: 1.1rem 1.2rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.9rem;
  font-weight: 600;
}
.catalog-section { margin-bottom: 1.5rem; }
.product-card a { text-decoration: none; color: inherit; }
.product-card .card-title {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0.45rem 0;
  color: var(--text);
}
.product-card a:hover .card-title { text-decoration: underline; }

.breadcrumbs {
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 1rem;
  font-weight: 600;
}
.breadcrumbs a { color: var(--text-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--text); }

.constraint-list { margin: 0; padding-left: 1.1rem; }
.constraint-list li { margin-bottom: 0.55rem; color: var(--text-muted); }

.subhead {
  margin: 0 0 var(--space-2);
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.95rem;
}

.site-footer {
  padding: 2rem 0 2.75rem;
  color: var(--text-dim);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}
.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  justify-content: space-between;
}
.site-footer .flag { width: 1.8rem; }
.site-footer p { margin: 0.25rem 0; }

/* Research concept / illustrative brief (v01 evidence-review validation) */
.plain-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
  max-width: 42rem;
}
.plain-list li { margin-bottom: 0.55rem; }
.plain-list strong { color: var(--text); font-weight: 600; }

.brief-meta {
  display: grid;
  grid-template-columns: minmax(8rem, 14rem) 1fr;
  gap: 0.55rem 1rem;
  margin: 0;
  max-width: 46rem;
}
.brief-meta dt {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--text-dim);
}
.brief-meta dd {
  margin: 0;
  color: var(--text-muted);
}
@media (max-width: 560px) {
  .brief-meta { grid-template-columns: 1fr; }
  .brief-meta dd { margin-bottom: 0.75rem; }
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-strong);
  background: var(--surface);
}
.brief-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1rem;
  min-width: 36rem;
}
.brief-table caption {
  text-align: left;
  padding: 0.75rem 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}
.brief-table th,
.brief-table td {
  text-align: left;
  vertical-align: top;
  padding: 0.75rem 0.9rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
}
.brief-table th {
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.8rem;
  background: var(--surface-2);
}
.brief-table code {
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  font-size: 0.92em;
  color: var(--text);
}

/* Spacing helpers — prefer classes over inline style (CSP style-src 'self') */
.nav-mobile .brand {
  font-size: 0.95rem;
  font-weight: 700;
}
.stack-mt { margin-top: 1rem; }
.lede-before-cards { margin-bottom: 1rem; }