/**
 * PitStrike customer billing — glass hierarchy, tier accents, reduced-motion safe.
 */
:root {
  --bill-bg: #06080c;
  --bill-panel: rgba(15, 20, 28, 0.92);
  --bill-border: rgba(88, 166, 255, 0.2);
  --bill-text: #e6edf3;
  --bill-muted: #8b949e;
  --bill-blue: #58a6ff;
  --bill-green: #3fb950;
  --bill-gold: #d4a017;
  --bill-warn: #d29922;
  --bill-danger: #f85149;
  --bill-radius: 14px;
  --bill-font: "Segoe UI", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

body.billing-body {
  margin: 0;
  min-height: 100vh;
  background: var(--bill-bg);
  color: var(--bill-text);
  font-family: var(--bill-font);
  line-height: 1.5;
  background-image:
    radial-gradient(900px 420px at 15% -10%, rgba(88, 166, 255, 0.12), transparent 55%),
    radial-gradient(700px 380px at 95% 30%, rgba(63, 185, 80, 0.08), transparent 50%),
    radial-gradient(600px 400px at 50% 110%, rgba(212, 160, 23, 0.06), transparent 45%);
}

.billing-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 100px;
}

@media (min-width: 720px) {
  .billing-shell {
    padding: 32px 28px 120px;
  }
}

.billing-topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.billing-topnav a {
  color: var(--bill-blue);
  text-decoration: none;
  font-size: 13px;
}
.billing-topnav a:hover {
  text-decoration: underline;
}

.billing-hero {
  position: relative;
  border-radius: var(--bill-radius);
  border: 1px solid var(--bill-border);
  background: var(--bill-panel);
  padding: 24px 22px;
  margin-bottom: 20px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}
.billing-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(88, 166, 255, 0.06), transparent 40%);
  pointer-events: none;
}
.billing-hero > * {
  position: relative;
}

.billing-hero__grid {
  display: grid;
  gap: 18px;
}
@media (min-width: 800px) {
  .billing-hero__grid {
    grid-template-columns: 1fr auto;
    align-items: start;
  }
}

.billing-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--bill-green);
  margin-bottom: 8px;
}
.billing-hero__badge--elite {
  color: var(--bill-gold);
}

.billing-hero__title {
  margin: 0 0 6px;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.billing-hero__sub {
  margin: 0;
  color: var(--bill-muted);
  font-size: 14px;
  max-width: 52ch;
}

.billing-hero__price-line {
  margin-top: 12px;
  font-size: 1.25rem;
  font-weight: 700;
}

.billing-hero__renewal {
  margin-top: 6px;
  font-size: 13px;
  color: var(--bill-muted);
}

.billing-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.billing-btn {
  appearance: none;
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--bill-border);
  background: rgba(88, 166, 255, 0.12);
  color: var(--bill-text);
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
}
.billing-btn:hover:not(:disabled) {
  background: rgba(88, 166, 255, 0.2);
  transform: translateY(-1px);
}
.billing-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}
.billing-btn--primary {
  background: rgba(63, 185, 80, 0.22);
  border-color: rgba(63, 185, 80, 0.45);
}
.billing-btn--primary:hover:not(:disabled) {
  background: rgba(63, 185, 80, 0.32);
}
.billing-btn--ghost {
  background: transparent;
}

.billing-banner {
  border-radius: var(--bill-radius);
  border: 1px solid rgba(210, 153, 34, 0.35);
  background: rgba(210, 153, 34, 0.08);
  padding: 14px 16px;
  margin-bottom: 20px;
  font-size: 14px;
  display: none;
}
.billing-banner--visible {
  display: block;
}
.billing-banner strong {
  color: var(--bill-warn);
}

.billing-section {
  border-radius: var(--bill-radius);
  border: 1px solid var(--bill-border);
  background: var(--bill-panel);
  padding: 20px 22px;
  margin-bottom: 18px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.28);
}

.billing-section__h {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 700;
}

.billing-section__lead {
  margin: 0 0 16px;
  color: var(--bill-muted);
  font-size: 14px;
}

.billing-usage-meter--follow {
  margin-top: 20px;
}

.billing-usage-meter {
  margin-top: 8px;
}
.billing-usage-meter__labels {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 13px;
  margin-bottom: 8px;
}
.billing-usage-meter__bar {
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.billing-usage-meter__fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--bill-green), var(--bill-blue));
  width: 0%;
  transition: width 0.35s ease;
}
.billing-usage-meter__fill--warn {
  background: linear-gradient(90deg, var(--bill-warn), var(--bill-gold));
}
.billing-usage-meter__fill--danger {
  background: linear-gradient(90deg, var(--bill-danger), var(--bill-warn));
}
.billing-usage-meter__note {
  margin-top: 10px;
  font-size: 13px;
  color: var(--bill-muted);
}
.billing-usage-meter__note--warn {
  color: var(--bill-warn);
}
.billing-usage-meter__note--danger {
  color: var(--bill-danger);
}

.billing-value-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-top: 12px;
}
.billing-value-card {
  border-radius: 12px;
  border: 1px solid rgba(88, 166, 255, 0.15);
  padding: 14px 14px;
  background: rgba(6, 8, 12, 0.5);
}
.billing-value-card__h {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--bill-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.billing-value-card__p {
  margin: 0;
  font-size: 14px;
}

.billing-toggle {
  display: inline-flex;
  border-radius: 999px;
  border: 1px solid var(--bill-border);
  overflow: hidden;
  margin-bottom: 16px;
}
.billing-toggle button {
  border: none;
  background: transparent;
  color: var(--bill-muted);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.billing-toggle button[aria-selected="true"] {
  background: rgba(88, 166, 255, 0.2);
  color: var(--bill-text);
}

.billing-plans {
  display: grid;
  gap: 14px;
}
@media (min-width: 900px) {
  .billing-plans {
    grid-template-columns: repeat(3, 1fr);
  }
}

.billing-plan-card {
  border-radius: 14px;
  border: 1px solid rgba(88, 166, 255, 0.18);
  padding: 18px 16px;
  background: rgba(6, 8, 12, 0.55);
  display: flex;
  flex-direction: column;
  min-height: 100%;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.billing-plan-card:hover {
  transform: translateY(-3px);
  border-color: rgba(88, 166, 255, 0.35);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
}
.billing-plan-card--elite {
  border-color: rgba(212, 160, 23, 0.45);
  box-shadow: 0 0 0 1px rgba(212, 160, 23, 0.12);
}
.billing-plan-card--current {
  outline: 2px solid rgba(63, 185, 80, 0.45);
}

.billing-plan-card__tier {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--bill-blue);
  margin-bottom: 6px;
}
.billing-plan-card--elite .billing-plan-card__tier {
  color: var(--bill-gold);
}

.billing-plan-card__price {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 4px;
}
.billing-plan-card__sub {
  font-size: 12px;
  color: var(--bill-muted);
  margin-bottom: 12px;
}

.billing-plan-card ul {
  margin: 0 0 14px;
  padding-left: 1.1rem;
  color: var(--bill-muted);
  font-size: 13px;
  flex: 1;
}
.billing-plan-card li {
  margin: 6px 0;
}

.billing-addons {
  display: grid;
  gap: 12px;
}
@media (min-width: 640px) {
  .billing-addons {
    grid-template-columns: repeat(2, 1fr);
  }
}

.billing-addon-card {
  border-radius: 12px;
  border: 1px dashed rgba(88, 166, 255, 0.25);
  padding: 14px;
  background: rgba(6, 8, 12, 0.35);
}
.billing-addon-card__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.billing-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
  font-size: 12px;
  color: var(--bill-muted);
  margin-top: 8px;
}

.billing-details {
  margin-top: 8px;
}
.billing-details summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--bill-blue);
  padding: 8px 0;
}
.billing-details__body {
  margin-top: 10px;
  display: grid;
  gap: 16px;
}

.billing-pre {
  margin: 0;
  padding: 12px;
  border-radius: 10px;
  background: #0a0e14;
  border: 1px solid var(--bill-border);
  font-size: 11px;
  color: var(--bill-muted);
  overflow: auto;
  max-height: 240px;
}

.billing-legal {
  font-size: 12px;
  color: var(--bill-muted);
}
.billing-legal ul {
  padding-left: 1.2rem;
}

.billing-loaded .billing-hero,
.billing-loaded .billing-section {
  animation: billing-in 0.5s ease both;
}
.billing-loaded .billing-section:nth-child(2) {
  animation-delay: 0.05s;
}
.billing-loaded .billing-section:nth-child(3) {
  animation-delay: 0.1s;
}

@keyframes billing-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .billing-loaded .billing-hero,
  .billing-loaded .billing-section,
  .billing-plan-card,
  .billing-btn,
  .billing-usage-meter__fill {
    animation: none !important;
    transition: none !important;
  }
  .billing-plan-card:hover {
    transform: none;
  }
}