body {
  font-family: -apple-system, "Segoe UI", Tahoma, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  margin: 0;
  padding: 40px 16px;
}

.wrap {
  max-width: 520px;
  margin: 0 auto;
}

h1 {
  text-align: center;
  margin-bottom: 24px;
  color: #38bdf8;
}

.card {
  background: #1e293b;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.hidden {
  display: none !important;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.tab {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: #334155;
  color: #cbd5e1;
  cursor: pointer;
  font-size: 14px;
}

.tab.active {
  background: #38bdf8;
  color: #0f172a;
  font-weight: bold;
}

form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

input, select {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #334155;
  background: #0f172a;
  color: #e2e8f0;
  font-size: 14px;
}

button[type="submit"] {
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: #38bdf8;
  color: #0f172a;
  font-weight: bold;
  cursor: pointer;
  font-size: 14px;
}

button[type="submit"]:hover {
  background: #0ea5e9;
}

.error {
  color: #f87171;
  margin-top: 12px;
  font-size: 13px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
}

.credits {
  color: #4ade80;
}

.link-btn {
  background: none;
  border: none;
  color: #f87171;
  cursor: pointer;
  font-size: 13px;
  text-decoration: underline;
}

hr {
  border: none;
  border-top: 1px solid #334155;
  margin: 16px 0;
}

.result {
  margin-top: 16px;
  background: #0f172a;
  border-radius: 8px;
  padding: 16px;
  font-size: 14px;
}

.result table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}

.result td {
  padding: 6px 4px;
  border-bottom: 1px solid #334155;
}

.result td:first-child {
  color: #94a3b8;
  width: 40%;
}

.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: bold;
  font-size: 12px;
}

.badge-excellent, .badge-good { background: #166534; color: #bbf7d0; }
.badge-risky { background: #92400e; color: #fed7aa; }
.badge-bad { background: #991b1b; color: #fecaca; }

.hint {
  color: #94a3b8;
  font-size: 12px;
  margin: -4px 0 0 0;
}

.preview-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.preview-actions button {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  font-size: 14px;
  background: #38bdf8;
  color: #0f172a;
}

.secondary-btn {
  background: #334155 !important;
  color: #cbd5e1 !important;
}

.result .error {
  color: #f87171;
  margin: 0;
}

.download-link {
  display: block;
  text-align: center;
  padding: 10px;
  border-radius: 8px;
  background: #22c55e;
  color: #052e16;
  font-weight: bold;
  text-decoration: none;
  width: 100%;
}

.plan-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  background: #0f172a;
  border-radius: 8px;
  margin-bottom: 8px;
}

.plan-row button {
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  background: #38bdf8;
  color: #0f172a;
  font-weight: bold;
  cursor: pointer;
}