:root {
  --instalments-bg: linear-gradient(135deg, #0f192c 0%, #0c1a35 45%, #0b1325 100%);
  --instalments-card: rgba(255, 255, 255, 0.04);
  --instalments-border: rgba(255, 255, 255, 0.08);
  --instalments-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  background: var(--instalments-bg);
  color: #e9f0ff;
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

a {
  color: #5dd7ff;
  text-decoration: none;
}

.instalments-page {
  padding: 32px 0 72px;
}

.instalments-hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: center;
  padding: 28px;
  border-radius: 16px;
  background: var(--instalments-card);
  border: 1px solid var(--instalments-border);
  box-shadow: var(--instalments-shadow);
  margin-bottom: 28px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 6px;
  color: #6ae3ff;
  font-weight: 700;
}

.instalments-hero h1 {
  margin: 4px 0 8px;
  font-size: 32px;
}

.lead {
  margin: 0 0 10px;
  color: #9bb4d8;
}

.reference {
  margin: 6px 0 0;
  color: #c9ddff;
  font-weight: 600;
}

.instalments-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.instalments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.card {
  background: var(--instalments-card);
  border: 1px solid var(--instalments-border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--instalments-shadow);
}

.highlight-card {
  background: linear-gradient(145deg, rgba(90, 151, 255, 0.08), rgba(0, 204, 175, 0.08));
}

.card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
}

.muted {
  color: #9bb4d8;
}

.bullet-list,
.step-list {
  margin: 0;
  padding-left: 20px;
  color: #e9f0ff;
  line-height: 1.6;
}

.bullet-list li,
.step-list li {
  margin-bottom: 8px;
}

.note {
  margin-top: 12px;
  padding: 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--instalments-border);
  color: #d7e6ff;
}

.note.warn {
  border-color: rgba(255, 128, 90, 0.5);
  color: #ffd7c2;
  background: rgba(255, 99, 71, 0.08);
}

.btn {
  font-weight: 700;
  border-radius: 10px;
}

.btn.disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, #5dd7ff, #48c6ef);
  color: #0a1529;
  border: none;
}

.btn-secondary {
  background: transparent;
  border: 1px solid #5dd7ff;
  color: #e9f0ff;
}

@media (max-width: 768px) {
  .instalments-hero {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .instalments-actions {
    justify-content: flex-start;
  }
}