/* ==========================================================
   Ulia.Radio — Page Brand (/brand)

   Charte graphique + fichiers de marque. Composants propres à
   cette page (préfixe .brd-), aucune dépendance aux cartes des
   autres sections du site.
   ========================================================== */

.brd {
  /* Le header est fixe (hors flux) : la marge haute part de sa hauteur pour
     que rien ne passe dessous, sur mobile comme sur grand écran. */
  padding: calc(var(--u-header-h) + clamp(16px, 4vw, 40px)) 0 100px;
  font-family: var(--font-body);
  color: var(--u-ink);
}

.brd-wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--u-gutter);
}

/* ---- En-tête ---- */

.brd-kicker {
  display: inline-block;
  margin: 0 0 14px;
  padding: 6px 12px;
  border-radius: var(--u-radius-pill);
  background: color-mix(in srgb, var(--u-blue) 10%, #fff);
  color: var(--u-blue);
  font-weight: 700;
  font-size: 12.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.brd-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(38px, 6vw, 76px);
  line-height: .98;
  letter-spacing: -0.025em;
  color: var(--u-blue);
}

.brd-lead {
  max-width: 720px;
  margin: 0;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.6;
  color: var(--u-ink-soft);
}

.brd-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}
.brd-nav a {
  padding: 9px 16px;
  border-radius: var(--u-radius-pill);
  border: 1px solid var(--u-line);
  background: #fff;
  color: var(--u-ink);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  transition: border-color .16s ease, color .16s ease, background-color .16s ease;
}
.brd-nav a:hover { border-color: var(--u-blue); color: var(--u-blue); }

/* ---- Sections ---- */

.brd-section {
  padding-top: clamp(48px, 6vw, 80px);
  scroll-margin-top: calc(var(--u-header-h) + 10px);
}

.brd-h2 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(26px, 3vw, 36px);
  letter-spacing: -0.015em;
  color: var(--u-ink);
}

.brd-sub {
  margin: 0 0 24px;
  font-size: 14.5px;
  color: var(--u-ink-soft);
}
.brd-h2 + :not(.brd-sub) { margin-top: 24px; }

/* ---- Boutons ---- */

.brd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 0;
  border-radius: var(--u-radius-pill);
  background: var(--u-blue);
  color: #fff;
  font: inherit;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .18s ease, transform .18s ease, color .18s ease;
}
.brd-btn:hover { background: var(--u-blue-deep); transform: translateY(-1px); }

.brd-btn--icon {
  width: 40px;
  padding: 10px 0;
  background: color-mix(in srgb, var(--u-blue) 10%, #fff);
  color: var(--u-blue);
}
.brd-btn--icon:hover { background: color-mix(in srgb, var(--u-blue) 18%, #fff); }

.brd-btn--ghost {
  background: transparent;
  color: var(--u-blue);
  border: 1px solid var(--u-line);
}
.brd-btn--ghost:hover { background: color-mix(in srgb, var(--u-blue) 8%, #fff); }

.brd-btn--light { background: #fff; color: var(--u-blue); }
.brd-btn--light:hover { background: #fff; color: var(--u-blue-deep); }

/* ---- Couleurs ---- */

.brd-colors {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 16px;
}

.brd-color {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(16, 39, 107, .05), 0 10px 28px rgba(16, 39, 107, .06);
}

.brd-color__chip {
  display: flex;
  align-items: flex-end;
  aspect-ratio: 16 / 11;
  padding: 16px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  /* Blanc sur blanc : un liseré garde la pastille visible. */
  box-shadow: inset 0 0 0 1px rgba(20, 22, 26, .06);
}

.brd-color__codes { display: flex; flex-direction: column; padding: 8px; }

.brd-code {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--u-ink);
  font: inherit;
  cursor: copy;
  transition: background-color .15s ease;
}
.brd-code:hover { background: var(--u-page); }
.brd-code span { font-size: 11.5px; font-weight: 700; letter-spacing: .06em; color: var(--u-ink-soft); }
.brd-code code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13.5px; }

.brd-color__usage {
  margin: 0;
  padding: 0 18px 16px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--u-ink-soft);
}

/* ---- Typographies ---- */

.brd-fonts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  gap: 16px;
}

.brd-font {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(16, 39, 107, .05), 0 10px 28px rgba(16, 39, 107, .06);
}

.brd-font__specimen {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 28px;
  background: var(--u-blue);
  color: #fff;
}
.brd-font__aa { font-size: clamp(64px, 8vw, 96px); line-height: 1; font-weight: 600; }
.brd-font__glyphs { font-size: 14px; line-height: 1.55; opacity: .85; word-break: break-all; }

.brd-font__info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px 24px;
}
.brd-font__info h3 { margin: 0 0 4px; font-size: 22px; font-weight: 600; }
.brd-font__info p { margin: 0; font-size: 14px; color: var(--u-ink-soft); }
.brd-font__info strong { color: var(--u-ink); }

/* ---- Règles d'usage ---- */

.brd-rules {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr));
  gap: 16px;
}

.brd-rules__col {
  padding: 24px 26px;
  border-radius: 20px;
  background: #fff;
  border-top: 4px solid;
  box-shadow: 0 1px 2px rgba(16, 39, 107, .05), 0 10px 28px rgba(16, 39, 107, .06);
}
.brd-rules__col--do { border-top-color: #18a058; }
.brd-rules__col--dont { border-top-color: #d64545; }

.brd-rules__col h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
}
.brd-rules__col--do h3 i { color: #18a058; }
.brd-rules__col--dont h3 i { color: #d64545; }

.brd-rules__col ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.brd-rules__col li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.55;
}
.brd-rules__col li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  opacity: .3;
}

/* ---- Fichiers ---- */

.brd-assets {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 18px;
}

.brd-asset {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(16, 39, 107, .05), 0 10px 28px rgba(16, 39, 107, .06);
  transition: box-shadow .2s ease, transform .2s ease;
}
.brd-asset:hover {
  transform: translateY(-2px);
  box-shadow: 0 1px 2px rgba(16, 39, 107, .06), 0 16px 36px rgba(16, 39, 107, .1);
}

.brd-asset__preview {
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 3;
  padding: 22px;
  color: var(--u-ink-soft);
}
.brd-asset__preview img { max-width: 100%; max-height: 100%; object-fit: contain; }
.brd-asset__preview i { font-size: 44px; opacity: .6; }

.brd-asset__preview--light { background: var(--u-page); }
.brd-asset__preview--dark { background: var(--u-ink); color: #fff; }
.brd-asset__preview--brand { background: var(--u-blue); color: #fff; }
.brd-asset__preview--checker {
  background-color: #fff;
  background-image:
    linear-gradient(45deg, #e8eaee 25%, transparent 25%), linear-gradient(-45deg, #e8eaee 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e8eaee 75%), linear-gradient(-45deg, transparent 75%, #e8eaee 75%);
  background-size: 18px 18px;
  background-position: 0 0, 0 9px, 9px -9px, -9px 0;
}

.brd-asset__body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  padding: 16px 18px 18px;
}
.brd-asset__body h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.25;
}

.brd-asset__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  font-size: 13px;
  color: var(--u-ink-soft);
}
.brd-tag {
  padding: 2px 8px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--u-blue) 10%, #fff);
  color: var(--u-blue);
  font-weight: 700;
  font-size: 11.5px;
  letter-spacing: .05em;
}

.brd-asset__desc { margin: 0; font-size: 13.5px; line-height: 1.5; color: var(--u-ink-soft); }

.brd-asset__actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
}
.brd-asset__actions .brd-btn:first-child { flex: 1; }

/* ---- Contact ---- */

.brd-contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: clamp(24px, 4vw, 36px) clamp(24px, 4vw, 44px);
  border-radius: 24px;
  background: linear-gradient(120deg, var(--u-blue-deep), var(--u-blue-lite));
  color: #fff;
}
.brd-contact p {
  max-width: 640px;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.35;
}

/* ---- Toast (copie) ---- */

.brd-toast {
  position: fixed;
  left: 50%;
  bottom: 110px;
  z-index: 80;
  padding: 11px 18px;
  border-radius: var(--u-radius-pill);
  background: var(--u-ink);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, 10px);
  transition: opacity .2s ease, transform .2s ease;
}
.brd-toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 560px) {
  .brd-font__specimen { flex-direction: column; align-items: flex-start; gap: 12px; }
  .brd-colors { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .brd-color__chip { font-size: 15px; padding: 12px; }
  .brd-assets { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .brd-asset, .brd-btn, .brd-toast { transition: none; }
}