:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --border: #d8dde6;
  --border-strong: #b3bbc9;
  --text: #1c2330;
  --text-muted: #5a6273;
  --text-dim: #8a93a4;
  --primary: #2c5fd9;
  --primary-hover: #234bb0;
  --primary-disabled: #a7b8e2;
  --secondary: #eef1f7;
  --secondary-hover: #e1e7f1;
  --success: #137a3a;
  --error: #b32020;
  --warning-bg: #fff7e0;
  --warning-border: #e0c878;
  --shadow: 0 1px 2px rgba(20, 30, 50, 0.04), 0 4px 16px rgba(20, 30, 50, 0.06);
  --radius: 6px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 28px 0 24px;
  margin-bottom: 32px;
}
.brand {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.tagline {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 15px;
}

.intro {
  margin-bottom: 32px;
}
.intro h2 {
  margin-top: 0;
}

.disclaimer {
  margin-top: 16px;
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.disclaimer summary {
  cursor: pointer;
  outline: none;
}
.disclaimer ul {
  margin: 12px 0 4px;
  padding-left: 20px;
}
.disclaimer li {
  margin-bottom: 6px;
}

.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 24px 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.step h2 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 600;
}
.muted {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0 0 14px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.grid label.full {
  grid-column: 1 / -1;
}
label {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}
input[type="text"],
input[type="number"],
input[type="tel"] {
  margin-top: 4px;
  padding: 9px 11px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(44, 95, 217, 0.15);
}

.field {
  display: flex;
  gap: 8px;
}
.field input { flex: 1; }

.checkbox-row {
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
  font-weight: 400;
  cursor: pointer;
}
.checkbox-row input[type="checkbox"] {
  margin-top: 2px;
  flex-shrink: 0;
}

.state-details {
  grid-column: 1 / -1;
  margin-top: 6px;
  padding: 12px 14px;
  background: var(--secondary);
  border-radius: 4px;
}
.state-details summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}
.state-details[open] summary {
  margin-bottom: 12px;
}

.recipient-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 14px;
  background: #fafbfd;
}
.recipient-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.recipient-label {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
}
.btn-icon {
  background: none;
  border: 1px solid transparent;
  font-size: 22px;
  line-height: 1;
  color: var(--text-dim);
  width: 28px;
  height: 28px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.btn-icon:hover {
  background: #fee;
  color: var(--error);
  border-color: #fcc;
}

.btn {
  display: inline-block;
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.btn:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-primary:disabled { background: var(--primary-disabled); border-color: var(--primary-disabled); }
.btn-secondary {
  background: var(--secondary);
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-secondary:hover { background: var(--secondary-hover); }

.status {
  margin: 12px 0 0;
  font-size: 14px;
  min-height: 20px;
}
.status.success { color: var(--success); }
.status.error { color: var(--error); }
.status.working { color: var(--text-muted); }

.site-footer {
  margin-top: 40px;
  padding: 24px 0 32px;
  border-top: 1px solid var(--border);
  font-size: 14px;
}
.site-footer p {
  margin: 0 0 8px;
}
.site-footer a {
  color: var(--primary);
  text-decoration: none;
}
.site-footer a:hover { text-decoration: underline; }
.small { font-size: 12px; line-height: 1.4; }

@media (max-width: 600px) {
  .grid { grid-template-columns: 1fr; }
  .step { padding: 20px 18px; }
  .container { padding: 0 16px; }
}