:root {
  color-scheme: dark;
  --bg: #0c1222;
  --panel: #171f35;
  --panel-raised: #202b45;
  --text: #f3f7fc;
  --muted: #b9c5da;
  --blue: #72d1fb;
  --icon-blue: #315ef3;
  --green: #63d16b;
  --green-dark: #102b19;
  --border: #323d56;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  background: radial-gradient(ellipse at 95% 0%, #172956 0%, transparent 48%), var(--bg);
  color: var(--text);
  font-family: 'Onest', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: min(1180px, calc(100% - 64px));
  margin-inline: auto;
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 30px;
  border-bottom: 1px solid var(--border);
}

.wordmark {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -1.2px;
}

.wordmark span { color: var(--blue); }

.edition {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
}

main { padding-block: 58px 66px; }

.eyebrow {
  margin: 0 0 13px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.4px;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 34px;
  font-size: clamp(32px, 4.4vw, 51px);
  font-weight: 800;
  line-height: 1.13;
  letter-spacing: -1.8px;
}

h1 span { color: var(--blue); }

.certification-intro {
  max-width: 780px;
  margin: -12px 0 34px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.offer-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.85fr) minmax(300px, 1fr);
  align-items: stretch;
  gap: 26px;
}

.offer-stack {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.offer-item {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  min-height: 64px;
  padding: 11px 16px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--panel);
}

.item-icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--icon-blue);
  color: var(--text);
}

.item-icon svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 750;
  line-height: 1.4;
  letter-spacing: -.35px;
}

.item-description {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.item-value {
  color: var(--blue);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.6px;
  font-variant-numeric: tabular-nums;
}

.founder-item { border: 1.5px solid var(--green); }
.founder-item .item-icon { background: #25764a; }
.founder-item .item-description { color: var(--green); font-weight: 600; }

.checkout {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 24px 22px;
  border: 1.5px solid var(--blue);
  border-radius: 15px;
  background: var(--panel-raised);
  text-align: center;
}

.total-label {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
}

.total-value {
  margin: 0;
  font-size: 47px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
}

.total-caption {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.price-block {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #3c4861;
}

.today {
  margin: 0 0 13px;
  color: var(--green);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 2px;
}

.price {
  margin: 0;
  font-size: clamp(36px, 4vw, 49px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  white-space: nowrap;
}

.price strong { color: var(--green); font-weight: inherit; }

.plan-title {
  margin-bottom: 12px;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
}

.plan-credits {
  margin: 12px 0 16px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}

.plan-credits strong { color: var(--blue); font-size: 13px; }

.installments {
  margin-top: 22px;
  padding-top: 21px;
  border-top: 1px solid #3c4861;
}

.installment-price {
  margin: 0;
  color: var(--blue);
  font-size: 38px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
}

.installment-price span {
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0;
}

.billing {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.credit-schedule {
  width: 100%;
  margin: 20px 0 12px;
  border-collapse: collapse;
  font-size: 12px;
  line-height: 1.5;
  text-align: left;
}
.credit-schedule caption {
  margin-bottom: 10px;
  font-weight: 700;
  text-align: left;
}
.credit-schedule th, .credit-schedule td {
  padding: 10px 5px;
  border-bottom: 1px solid var(--border);
}
.credit-schedule tbody th { font-weight: 500; }
.credit-schedule td { text-align: right; white-space: nowrap; }
.credit-schedule thead th:not(:first-child) { text-align: right; }

.investment {
  margin: 20px auto 0;
  max-width: 270px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
}

.cta {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 54px;
  padding: 14px 12px;
  border-radius: 8px;
  background: var(--green);
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.5;
  text-decoration: none;
  transition: transform 180ms ease;
}

.cta:hover { transform: translateY(-2px); background: #7cde83; }
.cta:active { transform: translateY(0); }
.cta:focus-visible { outline: 3px solid var(--text); outline-offset: 5px; }

.cta-secondary {
  border: 1px solid var(--blue);
  background: transparent;
  color: var(--blue);
  font-size: 10px;
}

.cta-secondary:hover { background: #2b3b57; }

.fulfillment {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.proof-section {
  margin-top: 70px;
  padding-top: 44px;
  border-top: 1px solid var(--border);
}

.proof-header { margin-bottom: 28px; }

.proof-header h2 {
  font-size: clamp(27px, 3.5vw, 38px);
  font-weight: 800;
  letter-spacing: -1px;
}

.proof-note {
  max-width: 650px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.proof-grid {
  max-width: 1040px;
  margin-inline: auto;
  columns: 2;
  column-gap: 20px;
}

.proof-item {
  display: flow-root;
  break-inside: avoid;
  margin: 0 0 20px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--panel);
}

.proof-item a {
  display: block;
  border-radius: 5px;
  color: var(--blue);
  text-decoration: none;
}

.proof-item a:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 5px;
}

.proof-item img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 440px;
  margin-inline: auto;
  border-radius: 5px;
}

.proof-view {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 13px;
  padding: 12px 2px 0;
  border-top: 1px solid var(--border);
  font-size: 11px;
  font-weight: 600;
}

.proof-item a:hover .proof-view { text-decoration: underline; }

@media (max-width: 767px) {
  .proof-section { margin-top: 48px; padding-top: 32px; }
  .proof-grid { columns: 1; max-width: 560px; }
  .proof-item { margin-bottom: 18px; }
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  padding-block: 23px 30px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}

.footer p { margin: 0; }

@media (max-width: 900px) {
  .container { width: min(680px, calc(100% - 40px)); }
  .offer-layout { grid-template-columns: 1fr; gap: 22px; }
  main { padding-block: 40px; }
  .checkout { padding: 30px; }
  .price { font-size: 52px; }
  .cta { font-size: 14px; }
  .cta-secondary { font-size: 12px; }
}

@media (max-width: 480px) {
  .container { width: calc(100% - 32px); }
  .masthead { padding-block: 22px; }
  .edition { font-size: 9px; letter-spacing: 1.3px; }
  h1 { letter-spacing: -1px; margin-bottom: 25px; }
  .offer-item {
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 4px 12px;
    padding: 17px 14px;
  }
  .item-icon { width: 38px; height: 38px; grid-row: span 2; align-self: start; }
  .item-icon svg { width: 21px; height: 21px; }
  h2 { font-size: 15px; }
  .item-description { font-size: 12px; }
  .item-value { grid-column: 2; font-size: 21px; }
  .checkout { padding: 28px 20px; }
  .cta { font-size: 12px; }
  .footer { flex-direction: column; align-items: flex-start; gap: 5px; }
}

@media (prefers-reduced-motion: reduce) {
  .cta { transition: none; }
  .cta:hover { transform: none; }
}