*, *::before, *::after { box-sizing: border-box; }

:root {
  --v: #7B2FFF;
  --c: #00D4FF;
  --ok: #00FF87;
  --void: #050508;
  --deep: #0D0D14;
  --card: #12121E;
  --border: rgba(255,255,255,0.08);
  --snow: #FFFFFF;
  --mist: rgba(255,255,255,0.62);
  --ghost: rgba(255,255,255,0.32);
  --danger: #FF6B9D;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--snow);
  background: var(--void);
}

.checkout-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5,5,8,0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo img { height: 26px; display: block; }

.nav-link {
  color: var(--mist);
  text-decoration: none;
  font-size: 14px;
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 64px 24px 80px;
}

.affiliate-banner,
.alert {
  max-width: 760px;
  margin: 0 auto 20px;
  padding: 14px 16px;
  border-radius: 14px;
  font-size: 14px;
}

.affiliate-banner {
  background: rgba(123,47,255,0.14);
  border: 1px solid rgba(123,47,255,0.35);
  color: var(--mist);
}

.alert-error {
  background: rgba(255,0,110,0.1);
  border: 1px solid rgba(255,0,110,0.25);
  color: var(--danger);
}

.page-header {
  max-width: 760px;
  margin: 0 auto 32px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--c);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  font-weight: 800;
}

.page-header h1 {
  margin: 0;
  font-family: Figtree, Inter, sans-serif;
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1;
}

.page-header p,
.panel-sub,
.selected-plan p,
.login-note {
  color: var(--mist);
}

.checkout-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 24px;
  align-items: start;
}

.selected-plan,
.payment-panel,
.plans-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
}

.selected-plan {
  position: relative;
  overflow: hidden;
  border-color: rgba(123,47,255,0.68);
  box-shadow: 0 0 44px rgba(123,47,255,0.24);
}

.selected-plan::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  right: 20px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--v), var(--c), transparent);
}

.popular,
.trial-pill {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 11px;
  font-weight: 800;
}

.popular {
  margin-bottom: 16px;
  color: var(--ok);
  background: rgba(0,255,135,0.12);
}

.plan-top {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.plan-top h2,
.payment-panel h2,
.plans-panel h2 {
  margin: 0;
  font-family: Figtree, Inter, sans-serif;
  font-size: 24px;
}

.price {
  white-space: nowrap;
  font-family: Figtree, Inter, sans-serif;
  font-size: 38px;
  line-height: 1;
  font-weight: 900;
}

.selected-plan .price span {
  background: linear-gradient(90deg, var(--c), #8B5CF6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.price small,
.plan-price small {
  color: var(--mist);
  font-size: 13px;
  font-weight: 500;
}

.plan-price small {
  font-size: 11px;
}

.trial-pill {
  margin: 20px 0;
  color: var(--c);
  background: rgba(0,212,255,0.12);
  border: 1px solid rgba(0,212,255,0.24);
}

.features {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: grid;
  gap: 10px;
}

.features li {
  color: var(--mist);
  font-size: 14px;
}

.features li::before {
  content: "✓";
  color: var(--ok);
  margin-right: 8px;
  font-weight: 800;
}

.change-plan-btn,
.plans-panel-head button,
.coupon-row button {
  border: 1px solid var(--border);
  background: var(--deep);
  color: var(--snow);
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 800;
  cursor: pointer;
}

.lead-form,
.coupon-field {
  display: grid;
  gap: 14px;
}

.lead-form label,
.coupon-field {
  color: var(--mist);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.lead-form input,
.coupon-row input {
  width: 100%;
  margin-top: 7px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--deep);
  color: var(--snow);
  padding: 13px 14px;
  font-size: 15px;
}

.primary-btn {
  width: 100%;
  border: 0;
  border-radius: 999px;
  padding: 15px 20px;
  background: linear-gradient(135deg, var(--v), var(--c));
  color: #fff;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 0 32px rgba(123,47,255,0.35);
}

.primary-btn:disabled {
  opacity: 0.55;
  cursor: default;
}

.login-note {
  margin: 16px 0 0;
  font-size: 14px;
  text-align: center;
}

.login-note a {
  color: var(--c);
  font-weight: 800;
}

.coupon-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-top: 7px;
}

.coupon-row input { margin-top: 0; }

.coupon-msg {
  min-height: 20px;
  margin: 8px 0 16px;
  color: var(--mist);
  font-size: 13px;
}

.coupon-msg.is-ok { color: var(--ok); }
.coupon-msg.is-error { color: var(--danger); }

.is-hidden { display: none; }

.pay-section {
  display: none;
  margin-top: 18px;
}

.pay-section.show { display: block; }

.pay-element {
  min-height: 48px;
  margin-bottom: 14px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255,255,255,0.04);
}

.pay-error { display: none; margin-bottom: 12px; }
.pay-error.show { display: block; }

.plans-panel {
  display: none;
  margin-top: 24px;
}

.plans-panel.show { display: block; }

.plans-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  margin-bottom: 18px;
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.plan-card {
  min-height: 230px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  color: var(--snow);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  background: rgba(13,13,20,0.72);
  transition: border-color .16s, transform .16s, box-shadow .16s;
}

.plan-card:hover {
  border-color: rgba(123,47,255,0.45);
  transform: translateY(-2px);
}

.plan-card.selected {
  border-color: var(--v);
  box-shadow: 0 0 40px rgba(123,47,255,0.28);
  background: linear-gradient(180deg, rgba(123,47,255,0.08), rgba(18,18,30,0.9));
}

.plan-card.current {
  opacity: .48;
  border-color: var(--border);
  background: rgba(13,13,20,0.52);
  box-shadow: none;
  cursor: default;
}

.plan-card.current:hover {
  transform: none;
  border-color: var(--border);
}

.plan-card.selected:not(.current),
.plan-card.popular-card:not(.current) {
  border-top-color: var(--c);
}

.plan-badge {
  width: fit-content;
  border: 1px solid rgba(0,255,135,0.45);
  border-radius: 999px;
  padding: 3px 10px;
  background: rgba(0,255,135,0.16);
  color: var(--ok);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.plan-name {
  margin-top: 2px;
  font-weight: 900;
  font-size: 18px;
}

.plan-price {
  font-family: Figtree, Inter, sans-serif;
  margin: 4px 0 0;
  font-size: 28px;
  line-height: 1;
  font-weight: 900;
}

.plan-card.selected:not(.current) .plan-price,
.plan-card.popular-card:not(.current) .plan-price {
  color: var(--c);
}

.plan-users,
.plan-feature {
  color: var(--mist);
  font-size: 13px;
}

.plan-feature {
  margin-top: 4px;
}

.plan-feature::before {
  content: "✓";
  color: var(--c);
  margin-right: 8px;
  font-weight: 900;
}

.plan-trial-line {
  color: var(--ok);
  font-size: 11px;
  font-weight: 900;
}

.plan-cta {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  color: var(--mist);
  font-weight: 900;
  font-size: 13px;
}

.plan-card.selected:not(.current) .plan-cta,
.plan-card.popular-card:not(.current) .plan-cta {
  border: 0;
  color: #fff;
  background: linear-gradient(135deg, var(--v), var(--c));
  box-shadow: 0 0 28px rgba(123,47,255,0.35);
}

.plan-card.current .plan-cta {
  border-color: rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
  color: var(--ghost);
  box-shadow: none;
}

.plan-change-form {
  margin-top: 20px;
}

@media (max-width: 820px) {
  .checkout-layout { grid-template-columns: 1fr; }
  .plan-top { flex-direction: column; }
  .price { white-space: normal; }
  .plans-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plan-card { min-height: auto; }
}

@media (max-width: 560px) {
  .plans-grid { grid-template-columns: 1fr; }
}