/* ============================================================
   SEÇÃO — Preview Interativo do App
============================================================ */
.preview-section {
  padding: 120px 24px;
  position: relative;
  overflow: hidden;
}

.preview-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 100%, rgba(48,209,88,.06) 0%, transparent 70%);
  pointer-events: none;
}

.preview-layout {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 80px;
}

/* Coluna de texto + tabs */
.preview-content { display: flex; flex-direction: column; gap: 32px; }

/* Botões de tab (Dashboard / Treinos / …) */
.preview-tabs { display: flex; gap: 8px; flex-wrap: wrap; }

.preview-tab-btn {
  padding: 8px 18px;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -.01em;
  background: var(--glass2);
  border: 1px solid var(--border);
  color: var(--text2);
  transition: all .2s;
}
.preview-tab-btn.active,
.preview-tab-btn:hover {
  background: var(--accent);
  color: #000;
  border-color: transparent;
}

/* Card de descrição da feature */
.preview-feature-desc {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
}
.preview-feat-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.02em;
  margin-bottom: 8px;
}
.preview-feat-text {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.6;
  letter-spacing: -.01em;
}