/* ==========================================================================
   Seção Sobre — BarberSy
   Layout interativo com abas e preview do produto.
   Mobile-first: tab list em scroll horizontal no mobile, horizontal no desktop.
   ========================================================================== */

/* ── Wrapper da section ──────────────────────────────────────────────────── */
.sobre {
  width: 100%;
  background-color: #ffffff; /* Fundo branco para alternar */
  padding-block: clamp(6.5rem, 11vw, 9rem);
  padding-inline: clamp(var(--space-6), 8vw, 6rem);
}

/* ── Cabeçalho da seção — herda utilitários de base.css ─────────────────── */
.sobre__header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-10);
}

.sobre__label {
  display: inline-block;
  font-size: var(--section-label-size);
  font-weight: var(--font-medium);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-3);
}

.sobre__title {
  font-size: var(--section-title-size);
  font-weight: var(--font-semibold);
  line-height: 1.2;
  letter-spacing: -0.5px;
  color: var(--color-brand);
  margin-bottom: var(--space-4);
}

.sobre__subtitle {
  font-size: var(--section-subtitle-size);
  font-weight: var(--font-light);
  color: var(--color-muted);
  line-height: 1.7;
}

/* ── Barra de abas ───────────────────────────────────────────────────────── */
.sobre__tabs {
  display: flex;
  align-items: stretch;
  gap: 0;

  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;

  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background-color: var(--color-surface);
  padding: var(--space-1);
  margin: 0 auto;
  max-width: 960px;
  width: 100%;

  white-space: nowrap;
}

.sobre__tabs::-webkit-scrollbar {
  display: none;
}

.sobre__tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: auto;
  min-width: 48px;

  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-muted);

  padding: var(--space-3) var(--space-4);
  border-radius: calc(var(--radius-lg) - 4px);
  border: 1px solid transparent;

  cursor: pointer;
  transition:
    color var(--transition-base),
    background-color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    flex var(--transition-base);
}

.sobre__tab-icon {
  font-size: var(--text-base);
  transition: color var(--transition-base);
  flex-shrink: 0;
}

.sobre__tab-text {
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  white-space: nowrap;
  transition:
    max-width 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.2s ease,
    margin-left 0.3s ease;
  margin-left: 0;
  display: inline-block;
  vertical-align: middle;
}

.sobre__tab:hover {
  color: var(--color-brand);
}

/* Estado ativo da aba */
.sobre__tab[aria-selected="true"] {
  flex: 1;
  color: var(--color-brand);
  background-color: #fff;
  border-color: var(--color-border);
  box-shadow: 0 1px 4px 0 var(--color-shadow);
}

.sobre__tab[aria-selected="true"] .sobre__tab-icon {
  color: var(--color-brand);
}

.sobre__tab[aria-selected="true"] .sobre__tab-text {
  max-width: 150px;
  opacity: 1;
  margin-left: var(--space-2);
}

/* ── Área de conteúdo (painéis) ──────────────────────────────────────────── */
.sobre__panels {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
}

.sobre__panel {
  display: none;
  flex-direction: column;
  gap: var(--space-8);
  animation: panel-fade-in 350ms ease both;
}

.sobre__panel[aria-hidden="false"] {
  display: flex;
}

@keyframes panel-fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Preview do produto ──────────────────────────────────────────────────── */
.sobre__preview {
  position: relative;
  width: 100%;

  background-color: var(--color-surface-alt); /* token, antes hardcoded #f3f3f0 */
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);

  overflow: hidden;
  min-height: 320px;

  display: flex;
  align-items: center;
  justify-content: center;
}

/* Halo decorativo suave */
.sobre__preview::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(0,0,0,0.03) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(0,0,0,0.03) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* Placeholder visual */
.sobre__preview-placeholder {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-12);
  text-align: center;
}

.sobre__preview-placeholder-icon {
  font-size: var(--text-3xl); /* token, antes hardcoded 3rem */
  color: var(--color-border);
}

.sobre__preview-placeholder-text {
  font-size: var(--text-sm);
  color: var(--color-border-hover);
  font-weight: var(--font-medium);
}

/* Imagem real (quando inserida) */
.sobre__preview-img {
  width: 100%;
  height: auto;
  display: block;
  position: relative;
  z-index: 1;
}

/* ── Setas de Navegação (mobile) ─────────────────────────────────────────── */
.sobre__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--color-border);
  color: var(--color-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition:
    background-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
  box-shadow: 0 4px 12px var(--color-shadow);
}

.sobre__arrow:hover {
  background-color: #fff;
  transform: translateY(-50%) scale(1.08);
  box-shadow: 0 6px 16px var(--color-shadow);
}

.sobre__arrow--left  { left:  var(--space-3); }
.sobre__arrow--right { right: var(--space-3); }

/* ── Media query: tablet (≥ 640px) ──────────────────────────────────────── */
@media (min-width: 640px) {
  .sobre__tab {
    flex: 1;
    width: 100%;
    padding: var(--space-3) clamp(var(--space-4), 3vw, var(--space-8));
  }

  .sobre__tab-text {
    max-width: none !important;
    opacity: 1 !important;
    margin-left: var(--space-2) !important;
  }
}

/* ── Media query: desktop (≥ 768px) ─────────────────────────────────────── */
@media (min-width: 768px) {
  .sobre__preview {
    min-height: 480px;
  }

  .sobre__arrow {
    display: none;
  }
}

/* ── Barber-pole highlights (Red/Blue alternating accents) ─────────────── */
#tab-dashboard .sobre__tab-icon { color: #F5382E; }
#tab-servicos .sobre__tab-icon { color: #2E68A0; }
#tab-financeiro .sobre__tab-icon { color: #F5382E; }
#tab-estoque .sobre__tab-icon { color: #2E68A0; }

#tab-dashboard[aria-selected="true"] { border-top: 3px solid #F5382E !important; }
#tab-servicos[aria-selected="true"] { border-top: 3px solid #2E68A0 !important; }
#tab-financeiro[aria-selected="true"] { border-top: 3px solid #F5382E !important; }
#tab-estoque[aria-selected="true"] { border-top: 3px solid #2E68A0 !important; }