.payment-shell {
  min-height: 100vh;
  padding: 140px 24px 80px;
  background: var(--bg);
}

.payment-panel {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: start;
}

.payment-copy {
  padding-top: 24px;
}

.payment-title {
  margin-top: 16px;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1;
  letter-spacing: 0;
  color: var(--text);
  font-weight: 500;
}

.payment-body {
  margin-top: 24px;
  color: var(--text-muted);
  line-height: 1.7;
  font-size: 16px;
}

.payment-points {
  display: grid;
  gap: 12px;
  margin-top: 32px;
}

.payment-points span {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: rgba(255,255,255,0.03);
  font-size: 14px;
}

.checkout-form {
  background: var(--bg-sec);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
}

.provider-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.provider-tab {
  height: 48px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-muted);
  cursor: pointer;
  font-family: var(--sans);
  font-weight: 600;
}

.provider-tab.active {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.total-box {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  background: rgba(255,255,255,0.04);
  font-weight: 600;
}

.checkout-status {
  display: none;
  margin-top: 20px;
  padding: 14px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255,255,255,0.04);
  line-height: 1.5;
  font-size: 14px;
}

.checkout-status.show {
  display: block;
}

.checkout-status.error {
  border-color: rgba(255, 100, 100, 0.35);
  background: rgba(255, 100, 100, 0.08);
}

.result-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--bg);
}

.result-card {
  width: min(560px, 100%);
  padding: 48px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-sec);
  text-align: center;
}

.result-mark {
  width: 56px;
  height: 56px;
  margin: 0 auto 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-weight: 700;
}

.result-mark.success {
  color: #79d18f;
  background: rgba(69, 158, 96, 0.12);
  border: 1px solid rgba(69, 158, 96, 0.3);
}

.result-mark.fail {
  color: #ff8a8a;
  background: rgba(255, 100, 100, 0.12);
  border: 1px solid rgba(255, 100, 100, 0.3);
}

.result-card h1 {
  color: var(--text);
  font-size: 32px;
  letter-spacing: 0;
}

.result-card p {
  margin: 16px 0 32px;
  color: var(--text-muted);
  line-height: 1.6;
}

.result-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 860px) {
  .payment-panel {
    grid-template-columns: 1fr;
  }

  .checkout-form,
  .result-card {
    padding: 28px 20px;
  }

  .payment-shell {
    padding-top: 120px;
  }
}