:root {
  --bg: #f8fafc;
  --panel: #ffffff;
  --text: #172033;
  --muted: #667085;
  --border: #d8dee8;
  --accent: #1769ff;
  --accent-dark: #0e4fc8;
  --success: #067647;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Plus Jakarta Sans", Arial, sans-serif;
  line-height: 1.6;
}

a {
  color: var(--accent);
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.navbar {
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 20px;
}

.logo {
  color: var(--text);
  font-family: "Outfit", Arial, sans-serif;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.nav-link {
  color: var(--muted);
  font-weight: 700;
  text-decoration: none;
}

.section {
  padding: 56px 0;
}

.payment-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 32px;
  align-items: start;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2 {
  font-family: "Outfit", Arial, sans-serif;
  line-height: 1.1;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(38px, 7vw, 72px);
}

h2 {
  margin-top: 0;
  font-size: 28px;
}

.lead {
  max-width: 680px;
  color: var(--muted);
  font-size: 19px;
}

.summary-list {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 32px 0 0;
  list-style: none;
}

.summary-list li {
  padding-left: 18px;
  border-left: 3px solid var(--accent);
}

.card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  padding: 28px;
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.08);
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

label {
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font: inherit;
}

textarea {
  min-height: 96px;
  resize: vertical;
}

.button {
  width: 100%;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  padding: 14px 18px;
}

.button:hover {
  background: var(--accent-dark);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.status {
  min-height: 24px;
  margin: 16px 0 0;
  font-weight: 700;
}

.status.success {
  color: var(--success);
}

.status.error {
  color: var(--danger);
}

.note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  color: var(--muted);
  background: var(--panel);
}

@media (max-width: 820px) {
  .payment-layout {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 36px 0;
  }
}