/* SEC Billing mock UI — portfolio-themed */
.billing-preview {
  margin-top: 1.25rem;
}

.billing-preview__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.billing-preview__tab {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, 0.15);
  background: #fff;
  font-family: "Oswald", sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #555;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.billing-preview__tab:hover {
  border-color: #8f6a33;
  color: #3b2419;
}

.billing-preview__tab.is-active,
.billing-preview__tab[aria-selected="true"] {
  border-color: #8f6a33;
  background: #8f6a33;
  color: #fff;
}

/* Software card on dark page (light cream card) */
[data-theme="dark"] .project-card--software .billing-preview__tab {
  border-color: rgba(0, 0, 0, 0.14);
  background: #fff;
  color: #555;
}

[data-theme="dark"] .project-card--software .billing-preview__tab.is-active,
[data-theme="dark"] .project-card--software .billing-preview__tab[aria-selected="true"] {
  border-color: #8f6a33;
  background: #8f6a33;
  color: #fff;
}

/* Software card on light page (dark card) */
[data-theme="light"] .project-card--software .billing-preview__tab {
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.75);
}

[data-theme="light"] .project-card--software .billing-preview__tab:hover {
  border-color: #e8c547;
  color: #fff;
}

[data-theme="light"] .project-card--software .billing-preview__tab.is-active,
[data-theme="light"] .project-card--software .billing-preview__tab[aria-selected="true"] {
  border-color: #e8c547;
  background: #e8c547;
  color: #1a1a1a;
}

.billing-preview__frame {
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-lg);
  background: #fff;
  padding: 1rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

[data-theme="light"] .project-card--software .billing-preview__frame {
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.billing-mock {
  font-size: 0.8125rem;
  color: #1a1a1a;
}

.billing-mock__head {
  margin-bottom: 0.85rem;
}

.billing-mock__title {
  font-family: "Oswald", sans-serif;
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.15rem;
}

.billing-mock__sub {
  margin: 0;
  color: #555;
  font-size: 0.8rem;
}

.billing-mock__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

@media (max-width: 520px) {
  .billing-mock__stats {
    grid-template-columns: 1fr;
  }
}

.billing-mock__stat {
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #f8f6f2;
}

.billing-mock__stat-label {
  margin: 0 0 0.2rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #555;
}

.billing-mock__stat-value {
  margin: 0;
  font-weight: 700;
  font-size: 1rem;
}

.billing-mock__stat-value--danger {
  color: #b91c1c;
}

.billing-mock__stat-value--success {
  color: #15803d;
}

.billing-mock__bars {
  display: flex;
  align-items: flex-end;
  gap: 0.35rem;
  height: 72px;
  margin-top: 0.5rem;
}

.billing-mock__bar {
  flex: 1;
  background: linear-gradient(180deg, var(--accent) 0%, rgba(196, 149, 46, 0.35) 100%);
  border-radius: 3px 3px 0 0;
  min-height: 12px;
}

.billing-mock__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}

.billing-mock__table th,
.billing-mock__table td {
  padding: 0.45rem 0.5rem;
  text-align: left;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  color: #1a1a1a;
}

.billing-mock__table th {
  font-family: "Oswald", sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #555;
  font-weight: 500;
}

.billing-mock__badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-size: 0.68rem;
  font-weight: 600;
}

.billing-mock__badge--open {
  background: rgba(196, 149, 46, 0.2);
  color: #8f6a33;
}

.billing-mock__badge--paid {
  background: rgba(21, 128, 61, 0.15);
  color: #15803d;
}

.billing-preview__img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  display: block;
}