/* =============================================================================
   portrait.kaspa-kii.org — site styles.

   This file is an adaptation of the shared Kii design system.
   It references ONLY the tokens defined in
   brand/tokens.css. Do not hard-code colours, fonts or radii here — add a
   token in brand/tokens.css instead. Dropping in the real Kii brand kit
   (replacing brand/tokens.css) restyles this page identically to the rest of
   the Kii family.
   ============================================================================= */

*,
*::before,
*::after { box-sizing: border-box; }

html { font-size: var(--kii-font-size-base); }

body {
  margin: 0;
  font-family: var(--kii-font-sans);
  line-height: var(--kii-line-height);
  color: var(--kii-color-text);
  background: var(--kii-color-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--kii-color-link);
  text-decoration: none;
}
a:hover { text-decoration: underline; }
a:focus-visible {
  outline: 2px solid var(--kii-color-brand);
  outline-offset: 2px;
  border-radius: var(--kii-radius-sm);
}

/* --- Layout --------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--kii-content-max);
  margin-inline: auto;
  padding-inline: var(--kii-space-4);
}

/* --- Skip link ------------------------------------------------------------ */
.skip-link {
  position: absolute;
  left: var(--kii-space-3);
  top: -3rem;
  background: var(--kii-color-brand);
  color: var(--kii-color-brand-contrast);
  padding: var(--kii-space-2) var(--kii-space-3);
  border-radius: var(--kii-radius-sm);
  transition: top .15s ease;
  z-index: 10;
}
.skip-link:focus { top: var(--kii-space-3); }

/* --- Site nav ------------------------------------------------------------- */
.site-nav {
  border-bottom: 1px solid var(--kii-color-border);
  background: var(--kii-color-bg);
}
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--kii-space-3);
  padding-block: var(--kii-space-3);
  flex-wrap: wrap;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: var(--kii-space-2);
  font-weight: var(--kii-font-weight-bold);
  font-size: 1.15rem;
  color: var(--kii-color-text);
  letter-spacing: .2px;
}
.brand-mark:hover { text-decoration: none; }

/* Kii brand logo (from kaspa-kii.org), theme-swapped: colour on light, white on
   dark. Local assets — the site stays fully self-contained. */
.kii-logo { height: 1.7rem; width: auto; display: block; }
/* Portrait product mark — the gilded frame (a "portrait" in its frame). */
.portrait-mark { height: 2rem; width: auto; display: block; }
.kii-logo--dark { display: none; }
@media (prefers-color-scheme: dark) {
  .kii-logo--light { display: none; }
  .kii-logo--dark { display: block; }
}
.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--kii-space-4);
  font-size: .95rem;
}
.nav-links a { color: var(--kii-color-text-muted); }

/* --- Hero ----------------------------------------------------------------- */
.hero {
  padding-block: var(--kii-space-6) var(--kii-space-5);
  border-bottom: 1px solid var(--kii-color-border);
}
.hero h1 {
  margin: 0 0 var(--kii-space-3);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.1;
}
.hero p {
  margin: 0 0 var(--kii-space-3);
  max-width: 60ch;
  color: var(--kii-color-text-muted);
  font-size: 1.1rem;
}
.hero p:last-child { margin-bottom: 0; }

/* --- Maturity banner (page-level, prominent) ------------------------------- */
.maturity-banner {
  background: var(--kii-color-warn-bg);
  color: var(--kii-color-warn-text);
  border-block: 1px solid var(--kii-color-border);
}
.maturity-banner .container {
  padding-block: var(--kii-space-3);
  font-size: .95rem;
  font-weight: var(--kii-font-weight-bold);
}
.maturity-banner strong { text-transform: uppercase; letter-spacing: .04em; }

/* --- Sections ------------------------------------------------------------- */
.section { padding-block: var(--kii-space-6); }
.section + .section { border-top: 1px solid var(--kii-color-border); }

.section-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--kii-space-3);
  margin-bottom: var(--kii-space-4);
}
.section-head h2 {
  margin: 0;
  font-size: 1.6rem;
}
.section-head .lede {
  margin: 0;
  color: var(--kii-color-text-muted);
  font-size: 1rem;
  max-width: 70ch;
}

.eyebrow {
  display: inline-block;
  font-size: .75rem;
  font-weight: var(--kii-font-weight-bold);
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: var(--kii-space-1) var(--kii-space-2);
  border-radius: var(--kii-radius-sm);
  margin-bottom: var(--kii-space-2);
  color: var(--kii-color-foundation);
  background: color-mix(in srgb, var(--kii-color-foundation) 12%, transparent);
}

/* --- Card grid ------------------------------------------------------------ */
.card-grid {
  display: grid;
  gap: var(--kii-space-4);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  display: flex;
  flex-direction: column;
  gap: var(--kii-space-3);
  background: var(--kii-color-surface);
  border: 1px solid var(--kii-color-border);
  border-radius: var(--kii-radius-lg);
  padding: var(--kii-space-4);
  box-shadow: var(--kii-shadow-sm);
}
.card h3 {
  margin: 0;
  font-size: 1.2rem;
}
.card p { margin: 0; color: var(--kii-color-text-muted); }
.card .card-body { flex: 1; }
.card ul {
  margin: 0;
  padding-left: 1.2em;
  color: var(--kii-color-text-muted);
}
.card li + li { margin-top: var(--kii-space-1); }

.card code,
.maturity code,
p code,
li code {
  font-family: var(--kii-font-mono);
  font-size: .85em;
  background: var(--kii-color-surface-2);
  padding: 0 .35em;
  border-radius: var(--kii-radius-sm);
}

/* Maturity / honesty note inside a card. */
.maturity {
  font-size: .85rem;
  color: var(--kii-color-warn-text);
  background: var(--kii-color-warn-bg);
  border-radius: var(--kii-radius-md);
  padding: var(--kii-space-2) var(--kii-space-3);
}

/* Link row. */
.card-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--kii-space-3);
  font-size: .95rem;
}

/* --- Honest-scope lists (proves / does-not-prove) --------------------------- */
.scope-list { margin: 0; padding: 0; list-style: none; }
.scope-list li {
  padding-left: 1.5em;
  position: relative;
  color: var(--kii-color-text-muted);
}
.scope-list li + li { margin-top: var(--kii-space-2); }
.scope-list li::before {
  position: absolute;
  left: 0;
  font-weight: var(--kii-font-weight-bold);
}
.scope-list--yes li::before { content: "\2713"; color: var(--kii-color-accent); }
.scope-list--no  li::before { content: "\2717"; color: var(--kii-color-warn-text); }

/* --- Code blocks ------------------------------------------------------------ */
pre {
  margin: 0;
  background: var(--kii-color-surface-2);
  border: 1px solid var(--kii-color-border);
  border-radius: var(--kii-radius-md);
  padding: var(--kii-space-3) var(--kii-space-4);
  overflow-x: auto;
  font-family: var(--kii-font-mono);
  font-size: .88rem;
  line-height: 1.6;
}
pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}
.snippet-caption {
  margin: var(--kii-space-2) 0 0;
  font-size: .85rem;
  color: var(--kii-color-text-faint);
}

/* --- Footer --------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--kii-color-border);
  background: var(--kii-color-surface);
  color: var(--kii-color-text-muted);
  font-size: .9rem;
}
.site-footer .container {
  padding-block: var(--kii-space-5);
  display: flex;
  flex-direction: column;
  gap: var(--kii-space-3);
}
.site-footer strong { color: var(--kii-color-text); }
.site-footer .firewall {
  border-left: 3px solid var(--kii-color-border);
  padding-left: var(--kii-space-3);
}
.site-footer .stamp {
  color: var(--kii-color-warn-text);
  background: var(--kii-color-warn-bg);
  border-radius: var(--kii-radius-md);
  padding: var(--kii-space-2) var(--kii-space-3);
  align-self: flex-start;
}

/* --- Responsive ----------------------------------------------------------- */
@media (max-width: 600px) {
  .nav-links { gap: var(--kii-space-3); font-size: .85rem; }
  .section { padding-block: var(--kii-space-5); }
}