:root {
  --bg: #f4f6f8;
  --card: #fff;
  --text: #1a1d21;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #d97706;
  --border: #e5e7eb;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container { max-width: 800px; margin: 0 auto; padding: 1rem; }

.header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.nav a { color: var(--primary); text-decoration: none; font-size: 0.95rem; }
.nav a:hover { text-decoration: underline; }

.user-badge {
  font-size: 0.85rem;
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
}

h1 { margin: 0 0 1rem; font-size: 1.5rem; }

.muted { color: var(--muted); font-size: 0.95rem; }
.label { font-size: 0.85rem; color: var(--muted); margin: 0 0 0.25rem; text-transform: uppercase; letter-spacing: 0.04em; }

.phrase-box {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 1rem 0;
}

.phrase {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0;
}

.stats-line { margin: 0 0 1rem; color: var(--muted); }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.55rem 1rem;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  font-family: inherit;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }

.btn-secondary { background: #e5e7eb; color: var(--text); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-block { width: 100%; }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.85rem; }

.alert {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.alert-success { background: #dcfce7; color: #166534; }
.alert-error { background: #fee2e2; color: #991b1b; }

.form label {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.form input, .form select {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}

.form-inline {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 0.75rem;
  align-items: end;
}

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

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.table th, .table td {
  text-align: left;
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.badge {
  font-size: 0.8rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
}

.badge-ok { background: #dcfce7; color: #166534; }
.badge-off { background: #fee2e2; color: #991b1b; }

.inline-form { display: inline; }

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 400px;
}

.login-card h1 { margin-bottom: 0.25rem; }

.recorder-panel { margin-top: 1.5rem; }
.recorder-controls { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.5rem; }

.audio-player { width: 100%; margin: 1rem 0; }

.hidden { display: none; }

h2 { margin: 0 0 0.75rem; font-size: 1.15rem; }

.table-scroll { overflow-x: auto; }

.table-stats { font-size: 0.85rem; }

.table-stats .num {
  text-align: center;
  font-variant-numeric: tabular-nums;
}