:root {
  --bg: #eef2f6;
  --card: #ffffff;
  --text: #1c2430;
  --muted: #667085;
  --line: #d0d7e2;
  --primary: #0f6a5a;
  --primary-dark: #0b5246;
  --danger: #b42318;
  --success: #067647;
  --shadow: 0 10px 30px rgba(16, 24, 40, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  background: radial-gradient(circle at top right, #dfece8, transparent 40%),
              linear-gradient(180deg, #f5f8fb, #e8eef5);
  color: var(--text);
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.auth-body {
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card,
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  padding: 28px;
}

.auth-card h1,
.topbar h1 {
  margin: 0 0 8px;
  font-size: 1.4rem;
}

.muted { color: var(--muted); font-size: 0.92rem; }

.error {
  background: #fef3f2;
  color: var(--danger);
  border: 1px solid #fecdca;
  padding: 10px 12px;
  border-radius: 8px;
}

.success {
  background: #ecfdf3;
  color: var(--success);
  border: 1px solid #abefc6;
  padding: 10px 12px;
  border-radius: 8px;
}

label {
  display: block;
  margin: 14px 0 6px;
  font-weight: 600;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 1rem;
  background: #fff;
}

.btn,
button.btn {
  display: inline-block;
  margin-top: 16px;
  background: var(--primary);
  color: #fff !important;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none !important;
}

.btn:hover { background: var(--primary-dark); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #912018; }

.btn-light {
  background: #fff;
  color: var(--text) !important;
  border: 1px solid var(--line);
}

.btn-sm {
  margin-top: 0;
  padding: 7px 10px;
  font-size: 0.85rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  margin: 18px auto 0;
  max-width: 1100px;
}

.wrap {
  max-width: 1100px;
  margin: 16px auto 40px;
  padding: 0 16px;
}

.panel { padding: 8px; overflow: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 900px;
}

th, td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: right;
  vertical-align: middle;
  font-size: 0.92rem;
}

th {
  background: #f7fafc;
  color: var(--muted);
  font-weight: 700;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.empty {
  text-align: center;
  padding: 40px 16px;
  color: var(--muted);
}

.install-list {
  padding-right: 18px;
  line-height: 1.8;
}

audio {
  width: 180px;
  max-width: 100%;
  height: 36px;
}