/* ─ Botões ─ */

.btn {
  --btn-bg: var(--color-plum);
  --btn-fg: var(--color-mist);
  --btn-border: var(--color-plum);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: 0.95rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: transform var(--dur-1) var(--ease), box-shadow var(--dur-2) var(--ease), background var(--dur-1), color var(--dur-1);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
  will-change: transform;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.btn:active { transform: translateY(0); }

.btn .arrow {
  display: inline-block;
  transition: transform var(--dur-2) var(--ease);
}

.btn:hover .arrow { transform: translateX(4px); }

.btn--primary {
  --btn-bg: var(--color-plum);
  --btn-fg: var(--color-mist);
  --btn-border: var(--color-plum);
}

.btn--champagne {
  --btn-bg: var(--color-champagne);
  --btn-fg: var(--color-plum);
  --btn-border: var(--color-champagne);
  font-weight: 600;
  position: relative;
}

.btn--champagne::after {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.4), transparent 60%);
  opacity: 0;
  transition: opacity var(--dur-3) var(--ease);
  pointer-events: none;
  mix-blend-mode: overlay;
}

.btn--champagne:hover { box-shadow: var(--shadow-champ); }
.btn--champagne:hover::after { opacity: 1; }

.btn--outline {
  --btn-bg: transparent;
  --btn-fg: var(--color-mist);
  --btn-border: var(--color-mist);
  font-weight: 500;
}

.btn--outline:hover {
  background: rgba(245, 242, 248, 0.08);
  --btn-border: var(--color-champagne);
  --btn-fg: var(--color-champagne);
}

/* Override: quando o outline aparece em seção de fundo claro (.on-mist / .on-veil) */
.on-mist .btn--outline,
.on-veil .btn--outline {
  --btn-fg: var(--color-plum);
  --btn-border: var(--color-plum);
}

.on-mist .btn--outline:hover,
.on-veil .btn--outline:hover {
  background: var(--color-veil);
  --btn-fg: var(--color-plum);
  --btn-border: var(--color-plum);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--color-plum);
  --btn-border: transparent;
}

.btn--ghost:hover { background: var(--color-veil); }

.btn--whatsapp {
  --btn-bg: var(--color-success);
  --btn-fg: var(--color-mist);
  --btn-border: var(--color-success);
}

/* ─ Cards ─ */

.card {
  background: var(--color-mist);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-card);
  padding: var(--space-6);
  transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: var(--color-mauve);
}

.on-dark .card {
  background: rgba(245, 242, 248, 0.03);
  border-color: var(--color-line-dark);
  backdrop-filter: blur(8px);
}

.on-dark .card:hover { border-color: var(--color-lilac); }

/* ─ Badge ─ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.4rem 0.8rem;
  font-size: var(--fs-tiny);
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: var(--radius-pill);
  background: var(--color-veil);
  color: var(--color-plum);
  border: 1px solid var(--color-line-light);
}

.on-dark .badge {
  background: rgba(200, 190, 217, 0.08);
  color: var(--color-lilac);
  border-color: var(--color-line-dark);
}

.badge--champagne {
  background: rgba(212, 184, 150, 0.15);
  color: var(--color-champagne);
  border-color: rgba(212, 184, 150, 0.25);
}

.badge--dot::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ─ Selo "Original Garantido" (assinatura visual) ─ */

.stamp {
  width: 120px;
  height: 120px;
  border: 1.5px dashed currentColor;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--color-champagne);
  transform: rotate(-8deg);
  padding: 1rem;
  line-height: 1.2;
}

/* ─ Brand mark (logos no grid) ─ */

.brand-tile {
  aspect-ratio: 1 / 0.62;
  display: grid;
  place-items: center;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  transition: transform var(--dur-2) var(--ease), background var(--dur-2), border-color var(--dur-2);
  overflow: hidden;
}

.brand-tile img {
  max-height: 56px;
  width: auto;
  max-width: 75%;
  object-fit: contain;
  /* todos os logos viram plum monocromático pro grid ficar uniforme */
  filter: brightness(0) saturate(0);
  opacity: 0.6;
  transition: opacity var(--dur-2), filter var(--dur-2);
}

.brand-tile:hover {
  transform: translateY(-3px);
  background: var(--color-mist);
  border-color: var(--color-mauve);
}

.brand-tile:hover img {
  filter: none;
  opacity: 1;
}

.on-dark .brand-tile {
  background: rgba(200, 190, 217, 0.04);
  border-color: var(--color-line-dark);
}

.on-dark .brand-tile img {
  /* preto (ou transparente com conteúdo escuro) vira branco no dark */
  filter: brightness(0) invert(1);
  opacity: 0.65;
}

.on-dark .brand-tile:hover {
  background: rgba(200, 190, 217, 0.08);
  border-color: var(--color-lilac);
}

.on-dark .brand-tile:hover img {
  filter: none;
  opacity: 1;
}

/* Logo da Onuh — inverte em header escuro/footer */
.site-header .brand-link img,
.drawer .brand-link img,
.logo-invert {
  filter: brightness(0) invert(1);
  opacity: 0.9;
}
.site-header .brand-link:hover img,
.drawer .brand-link:hover img,
.logo-invert:hover { opacity: 1; }

/* ─ Input ─ */

.input {
  width: 100%;
  padding: 0.95rem 1.25rem;
  background: var(--color-mist);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-pill);
  font-family: inherit;
  font-size: var(--fs-body);
  color: var(--color-plum);
  transition: border-color var(--dur-1), box-shadow var(--dur-1);
}

.input:focus {
  outline: none;
  border-color: var(--color-mauve);
  box-shadow: 0 0 0 3px rgba(160, 147, 191, 0.2);
}

/* ─ Divider ─ */

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-line-light), transparent);
  border: 0;
  margin: var(--space-8) 0;
}

.on-dark .divider {
  background: linear-gradient(90deg, transparent, var(--color-line-dark), transparent);
}