:root {
  --portal-ink: #2f241f;
  --portal-panel: rgba(255, 255, 255, 0.9);
  --portal-border: rgba(75, 46, 43, 0.14);
  --portal-accent: #8b5e3c;
  --portal-accent-strong: #4b2e2b;
  --portal-warm: #f7ede0;
}

body {
  background:
    radial-gradient(circle at top left, rgba(219, 184, 138, 0.22), transparent 28%),
    linear-gradient(180deg, #fbf6ef 0%, #f7efe3 100%);
}

.referral-navbar {
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.referral-navbar-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.secondary-nav-btn {
  background: #fff;
  color: var(--portal-accent-strong);
  border: 1px solid var(--portal-border);
}

.referral-hero {
  padding: 44px 20px 10px;
}

.referral-hero-content {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px;
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(75, 46, 43, 0.96), rgba(139, 94, 60, 0.93)),
    var(--portal-warm);
  color: #fff;
  box-shadow: 0 28px 60px rgba(75, 46, 43, 0.16);
}

.referral-hero-content h2 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.02;
}

.referral-hero-content p {
  max-width: 720px;
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
}

.referral-kicker {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
}

.referral-card .referral-kicker,
.referral-profile-strip .referral-kicker {
  color: var(--portal-accent);
}

.referral-portal-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 16px 56px;
}

.referral-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.referral-summary-card,
.referral-card,
.referral-profile-strip {
  background: var(--portal-panel);
  border: 1px solid var(--portal-border);
  border-radius: 24px;
  box-shadow: 0 14px 40px rgba(75, 46, 43, 0.08);
  backdrop-filter: blur(10px);
}

.referral-summary-card {
  padding: 18px;
}

.referral-summary-card.highlight {
  background: linear-gradient(135deg, #4b2e2b, #8b5e3c);
  color: #fff;
}

.referral-summary-card span,
.referral-code-box span {
  display: block;
  font-size: 13px;
  color: inherit;
  opacity: 0.78;
  margin-bottom: 10px;
}

.referral-summary-card strong {
  display: block;
  font-size: clamp(1.3rem, 2vw, 2rem);
  color: inherit;
}

.referral-profile-strip {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 22px;
  margin-bottom: 18px;
  align-items: center;
}

.referral-profile-strip h3,
.referral-profile-strip p {
  margin: 0;
}

.referral-profile-strip p {
  color: #6f6259;
}

.referral-code-box {
  min-width: 220px;
  padding: 16px 18px;
  border-radius: 18px;
  background: #fff7ef;
  border: 1px dashed rgba(75, 46, 43, 0.2);
}

.referral-code-box strong {
  font-size: 1.3rem;
  color: var(--portal-accent-strong);
  word-break: break-word;
}

.referral-layout {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 18px;
}

.referral-card {
  padding: 22px;
}

.section-heading {
  margin-bottom: 18px;
}

.section-heading h3 {
  margin: 0;
  color: var(--portal-ink);
}

.withdrawal-form {
  display: grid;
  gap: 14px;
}

.withdrawal-form label {
  display: grid;
  gap: 8px;
}

.withdrawal-form span {
  font-size: 13px;
  font-weight: 700;
  color: #6f6259;
}

.withdrawal-form input,
.withdrawal-form select,
.withdrawal-form textarea {
  width: 100%;
  border-radius: 14px;
  border: 1px solid #d9c9b7;
  padding: 12px 14px;
  background: #fff;
  color: var(--portal-ink);
}

.withdrawal-form textarea {
  resize: vertical;
  min-height: 110px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.withdrawal-form button {
  margin-top: 4px;
}

.portal-message,
.withdrawal-hint {
  margin: 0;
  font-size: 0.95rem;
  color: #6f6259;
}

.portal-message[data-type="error"] {
  color: #b00020;
}

.portal-message[data-type="success"] {
  color: #176b35;
}

.history-list {
  display: grid;
  gap: 12px;
}

.history-item {
  padding: 16px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid rgba(75, 46, 43, 0.1);
}

.history-item strong,
.history-item span {
  display: block;
}

.history-item strong {
  font-size: 1.05rem;
  color: var(--portal-ink);
}

.history-item span {
  margin-top: 6px;
  color: #6f6259;
  font-size: 0.92rem;
}

.empty-state {
  padding: 18px;
  border-radius: 16px;
  background: #fff7ef;
  color: #6f6259;
}

@media (max-width: 980px) {
  .referral-summary-grid,
  .referral-layout {
    grid-template-columns: 1fr;
  }

  .referral-profile-strip,
  .two-col {
    grid-template-columns: 1fr;
    display: grid;
  }
}

@media (max-width: 640px) {
  .referral-hero,
  .referral-portal-shell {
    padding-left: 12px;
    padding-right: 12px;
  }

  .referral-hero-content,
  .referral-card,
  .referral-profile-strip {
    border-radius: 20px;
    padding: 18px;
  }

  .referral-navbar-actions {
    width: 100%;
  }

  .referral-navbar-actions a {
    flex: 1;
  }
}