.bitr-shell {
  --bitr-ink: #1d1a17;
  --bitr-muted: #756a61;
  --bitr-accent: #b64926;
  --bitr-accent-dark: #8f3317;
  --bitr-bg: linear-gradient(135deg, #fff9f0 0%, #f4ede3 100%);
  --bitr-card: rgba(255, 255, 255, 0.9);
  --bitr-border: rgba(29, 26, 23, 0.08);
  --bitr-shadow: 0 24px 60px rgba(68, 42, 27, 0.12);
  color: var(--bitr-ink);
  padding: 24px 0;
}

.bitr-card {
  max-width: 920px;
  margin: 0 auto;
  background: var(--bitr-bg);
  border: 1px solid var(--bitr-border);
  border-radius: 28px;
  box-shadow: var(--bitr-shadow);
  overflow: hidden;
  padding: 32px;
}

.bitr-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.bitr-kicker {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bitr-accent);
  font-size: 12px;
  margin: 0 0 8px;
}

.bitr-card h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
}

.bitr-intro,
.bitr-note {
  color: var(--bitr-muted);
}

.bitr-form {
  margin-top: 24px;
}

.bitr-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.bitr-grid label,
.bitr-terms {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-weight: 600;
}

.bitr-wide {
  grid-column: 1 / -1;
}

.bitr-grid input,
.bitr-grid select,
.bitr-grid textarea {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(29, 26, 23, 0.12);
  background: var(--bitr-card);
  padding: 14px 16px;
  min-height: 52px;
  box-sizing: border-box;
}

.bitr-terms {
  margin-top: 18px;
  flex-direction: row;
  align-items: flex-start;
}

.bitr-terms input {
  margin-top: 4px;
}

.bitr-actions {
  margin-top: 20px;
}

.bitr-actions button {
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--bitr-accent) 0%, var(--bitr-accent-dark) 100%);
  color: #fff;
  padding: 14px 24px;
  font-weight: 700;
  cursor: pointer;
}

.bitr-alert {
  padding: 12px 16px;
  border-radius: 16px;
  margin-top: 16px;
}

.bitr-alert p {
  margin: 0;
}

.bitr-alert p + p {
  margin-top: 10px;
}

.bitr-alert-success {
  background: rgba(55, 150, 92, 0.12);
  color: #18512f;
}

.bitr-alert-error {
  background: rgba(177, 53, 49, 0.12);
  color: #7c201e;
}

.bitr-ticket-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: #18512f;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

@media (max-width: 720px) {
  .bitr-card {
    padding: 22px;
    border-radius: 22px;
  }

  .bitr-header,
  .bitr-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .bitr-wide {
    grid-column: auto;
  }
}