:root {
  --accent: #5b63d3;
  --accent-dark: #4a51b8;
  --gold: #c59b27;
  --bg: #f4f5fb;
  --surface: #fff;
  --text: #1a1a2e;
  --muted: #5c6078;
  --border: #e2e4ef;
  --danger: #c0392b;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(26, 26, 46, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

a {
  color: var(--accent);
}

.hidden {
  display: none !important;
}

.link-btn {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  text-decoration: underline;
}

.btn-inline {
  margin-left: 0.5rem;
  vertical-align: middle;
  font-size: 0.85rem;
  padding: 0.25rem 0.6rem;
}

.auth-forgot {
  margin-top: 0.75rem;
}

.oauth-block {
  margin-top: 1rem;
}

.oauth-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 0.75rem;
}

.oauth-divider::before,
.oauth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.oauth-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.btn-oauth {
  width: 100%;
  justify-content: center;
}

.shell {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.25rem;
}

.brand {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
  color: var(--gold);
  letter-spacing: 0.04em;
  margin: 0 0 0.25rem;
}

.subtitle {
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.auth-note {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

@media (max-width: 640px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--muted);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  background: #fff;
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(91, 99, 211, 0.35);
  border-color: var(--accent);
}

textarea {
  min-height: 180px;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: none;
  border-radius: 10px;
  padding: 0.65rem 1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-dark);
}

.btn-secondary {
  background: #eef0fa;
  color: var(--accent);
}

.btn-danger {
  background: #fdecea;
  color: var(--danger);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.code-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-family: ui-monospace, monospace;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
}

.code-box-spaced {
  margin-top: 0.5rem;
}

.hint-sm {
  margin: 0.35rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.section-title {
  margin: 0;
}

.btn-row-flush {
  margin-top: 0;
}

.field-spaced {
  margin-top: 0.75rem;
}

.checkbox-label {
  margin: 0;
  font-weight: 500;
}

.import-desc {
  color: var(--muted);
  margin-top: 0;
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: 10px;
  margin-bottom: 1rem;
  font-size: 0.92rem;
}

.alert-error {
  background: #fdecea;
  color: var(--danger);
}

.alert-success {
  background: #e8f8ef;
  color: #1e7e46;
}

.alert-info {
  background: #eef0fa;
  color: var(--accent-dark);
}

.song-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.song-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.song-item:last-child {
  border-bottom: none;
}

.song-meta {
  font-size: 0.82rem;
  color: var(--muted);
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: #eef0fa;
  color: var(--accent);
}

.badge-draft {
  background: #fff3cd;
  color: #856404;
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tab {
  background: transparent;
  border: none;
  font: inherit;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
}

.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.search-inline {
  flex: 1;
  min-width: 180px;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.checkbox-row input {
  width: auto;
}

.import-preview {
  max-height: 200px;
  overflow: auto;
  font-size: 0.85rem;
  background: #fafbff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.5rem 0.75rem;
}

.import-preview li {
  margin: 0.25rem 0;
}