/* innet.one — design skin variants (preview + apply) */

/* ——— A: Institute (library / serif / air) ——— */

[data-skin="institute"] {
  --font-serif: var(--font-display);
  --radius-lg: 4px;
  --radius: 6px;
  --radius-pill: 9999px;
  --space-section: 4rem;
}

[data-skin="institute"][data-theme="dark"] {
  --bg: #0c0f14;
  --bg-subtle: #121820;
  --surface: #161d28;
  --surface-muted: #11161f;
  --text: #ece8e1;
  --text-muted: #9aa3b0;
  --border: #2a3340;
  --border-subtle: #1f2833;
  --accent: #8b9da8;
  --accent-hover: #a3b4be;
  --accent-muted: #c4d0d8;
  --focus: #8b9da8;
  --orange: #b45309;
}

[data-skin="institute"][data-theme="light"] {
  --bg: #f7f4ef;
  --bg-subtle: #efeae2;
  --surface: #fffcf7;
  --surface-muted: #f3efe8;
  --text: #1a1814;
  --text-muted: #5c564e;
  --border: #d8d0c4;
  --border-subtle: #e8e2d8;
  --accent: #4a6670;
  --accent-hover: #3d5560;
  --accent-muted: #5a7884;
  --focus: #4a6670;
}

[data-skin="institute"] .page-title--hero,
[data-skin="institute"] .static-facade-main h1 {
  font-weight: 600;
  letter-spacing: -0.02em;
  max-width: 14ch;
}

[data-skin="institute"] .nav-pill {
  border-radius: 4px;
}

[data-skin="institute"] .catalog-preview,
[data-skin="institute"] .bento-cell,
[data-skin="institute"] .panel {
  border-radius: 4px;
  box-shadow: none;
}

[data-skin="institute"] #app-shell::before {
  background-size: auto, auto, 5rem 5rem, 5rem 5rem;
  opacity: 0.25;
}

/* ——— B: Portal (research / data / default) ——— */

[data-skin="portal"] {
  /* inherits styles.css + premium + editorial */
}

/* ——— C: Vault (dark club / compact / gold accent) ——— */

[data-skin="vault"] {
  --radius-lg: 10px;
  --radius: 8px;
  --shell-max: 72rem;
}

[data-skin="vault"][data-theme="dark"],
[data-skin="vault"]:not([data-theme="light"]) {
  --bg: #050608;
  --bg-subtle: #0a0c10;
  --surface: #0f1218;
  --surface-muted: #0c0e14;
  --text: #e8eaed;
  --text-muted: #7a8290;
  --border: #1e2430;
  --border-subtle: #161b24;
  --accent: #c9a227;
  --accent-hover: #dbb42e;
  --accent-muted: #e8cc6a;
  --focus: #c9a227;
  --orange: #d97706;
}

[data-skin="vault"][data-theme="light"] {
  --bg: #111318;
  --bg-subtle: #161920;
  --surface: #1c212b;
  --surface-muted: #141820;
  --text: #eef0f3;
  --text-muted: #9aa0ab;
  --border: #2a3140;
  --border-subtle: #222836;
  --accent: #c9a227;
  --accent-hover: #dbb42e;
  --accent-muted: #e8cc6a;
}

[data-skin="vault"] .site-header--v3 {
  background: color-mix(in srgb, var(--bg) 92%, transparent);
}

[data-skin="vault"] .metric-card::after,
[data-skin="vault"] .hero-actions .btn-primary {
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 40%, transparent));
}

[data-skin="vault"] .nav-pill a.is-active {
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 45%, transparent);
}

[data-skin="vault"] #app-shell::before {
  opacity: 0.35;
  mask-image: linear-gradient(to bottom, black 0%, black 25%, transparent 85%);
}

/* ——— Design picker page ——— */

.design-page {
  padding-bottom: var(--space-2xl);
}

.design-intro {
  max-width: 40rem;
  margin-bottom: var(--space-2xl);
}

.skin-grid {
  display: grid;
  gap: var(--space-lg);
}

.skin-card {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.skin-card.is-active {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 20%, transparent);
}

.skin-card__frame {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
}

.skin-sample {
  border-radius: calc(var(--radius-lg) - 4px);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  min-height: 9rem;
}

.skin-sample__bar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.skin-sample__body {
  padding: var(--space-md);
  display: grid;
  gap: var(--space-sm);
}

.skin-sample__title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.15;
  max-width: 12ch;
}

.skin-sample__line {
  height: 0.375rem;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--border) 70%, transparent);
  max-width: 85%;
}

.skin-sample__row {
  display: flex;
  gap: var(--space-xs);
  margin-top: var(--space-xs);
}

.skin-sample__chip {
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  color: var(--text-muted);
}

.skin-card__body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--space-md);
}

.skin-card__label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-muted);
  margin: 0;
}

.skin-card__body h2 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
}

.skin-card__body p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.skin-traits {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.375rem;
}

.skin-traits li {
  font-size: 0.8125rem;
  color: var(--text-muted);
  padding-left: 1rem;
  position: relative;
}

.skin-traits li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 0.25rem;
  height: 0.25rem;
  border-radius: 50%;
  background: var(--accent-muted);
}

.skin-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: auto;
  padding-top: var(--space-sm);
}

.skin-active-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

/* Preview frames use scoped tokens */

.skin-sample--institute {
  --preview-bg: #f7f4ef;
  --preview-surface: #fffcf7;
  --preview-text: #1a1814;
  --preview-muted: #5c564e;
  --preview-accent: #4a6670;
  --preview-border: #d8d0c4;
}

.skin-sample--portal {
  --preview-bg: #f0f0eb;
  --preview-surface: #f7f7f2;
  --preview-text: #1a1814;
  --preview-muted: #5c574f;
  --preview-accent: #a47864;
  --preview-border: #d4cfc4;
}

.skin-sample--vault {
  --preview-bg: #050608;
  --preview-surface: #0f1218;
  --preview-text: #e8eaed;
  --preview-muted: #7a8290;
  --preview-accent: #c9a227;
  --preview-border: #1e2430;
}

.skin-sample--institute,
.skin-sample--portal,
.skin-sample--vault {
  background: var(--preview-bg);
  color: var(--preview-text);
}

.skin-sample--institute .skin-sample__bar,
.skin-sample--portal .skin-sample__bar,
.skin-sample--vault .skin-sample__bar {
  background: var(--preview-surface);
  border-color: var(--preview-border);
  color: var(--preview-muted);
}

.skin-sample--institute .skin-sample__title,
.skin-sample--portal .skin-sample__title,
.skin-sample--vault .skin-sample__title {
  color: var(--preview-text);
}

.skin-sample--institute .skin-sample__line,
.skin-sample--portal .skin-sample__line,
.skin-sample--vault .skin-sample__line {
  background: color-mix(in srgb, var(--preview-border) 90%, transparent);
}

.skin-sample--institute .skin-sample__chip,
.skin-sample--portal .skin-sample__chip,
.skin-sample--vault .skin-sample__chip {
  border-color: var(--preview-border);
  color: var(--preview-muted);
}

.skin-sample--institute .skin-sample__chip:first-child,
.skin-sample--portal .skin-sample__chip:first-child,
.skin-sample--vault .skin-sample__chip:first-child {
  border-color: color-mix(in srgb, var(--preview-accent) 40%, transparent);
  color: var(--preview-accent);
}

@media (min-width: 900px) {
  .skin-grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: stretch;
  }
}

@media (forced-colors: active) {
  .skin-card.is-active {
    outline: 2px solid Highlight;
  }
}