*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f0f13;
  --surface: #1a1a24;
  --surface2: #22222f;
  --border: #2e2e3e;
  --accent: #7c5cfc;
  --accent-h: #9b7ffe;
  --danger: #e05260;
  --success: #3ecf8e;
  --text: #e8e8f0;
  --muted: #7a7a9a;
  --radius: 12px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  min-height: 100dvh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-h); }

/* ── Layout ── */
.container { max-width: 720px; margin: 0 auto; padding: 0 20px; }

.header {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo { font-size: 20px; font-weight: 700; letter-spacing: -0.5px; }
.logo span { color: var(--accent); }

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}
.card-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  margin-bottom: 16px;
}

/* ── Form elements ── */
.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
  font-weight: 500;
}
.field input, .field select {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 14px;
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color 0.15s;
}
.field input:focus, .field select:focus {
  border-color: var(--accent);
}
.field input::placeholder { color: var(--muted); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s, transform 0.1s;
  user-select: none;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-h); }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: transparent; border: 1px solid var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn:disabled { opacity: 0.4; pointer-events: none; }
.btn-full { width: 100%; justify-content: center; }

/* ── MAC input hero ── */
.hero {
  text-align: center;
  padding: 60px 0 40px;
}
.hero h1 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 10px;
  letter-spacing: -1px;
}
.hero p { color: var(--muted); margin-bottom: 32px; font-size: 16px; }
.mac-input-wrap {
  display: flex;
  gap: 10px;
  max-width: 480px;
  margin: 0 auto;
}
.mac-input-wrap input {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 18px;
  color: var(--text);
  font-size: 16px;
  font-family: monospace;
  outline: none;
  transition: border-color 0.15s;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.mac-input-wrap input:focus { border-color: var(--accent); }
.mac-hint { font-size: 12px; color: var(--muted); margin-top: 12px; }

/* ── Playlist list ── */
.playlist-list { display: flex; flex-direction: column; gap: 10px; }
.playlist-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}
.playlist-item-info { flex: 1; min-width: 0; }
.playlist-item-name { font-weight: 600; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.playlist-item-url { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }
.playlist-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

/* ── Device header ── */
.device-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}
.device-icon {
  width: 48px; height: 48px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; flex-shrink: 0;
}
.device-meta { flex: 1; }
.device-mac { font-family: monospace; font-size: 18px; font-weight: 700; letter-spacing: 1px; }
.device-sub { font-size: 13px; color: var(--muted); margin-top: 4px; }

/* ── Admin table ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; padding: 10px 14px; color: var(--muted); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border); }
td { padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface2); }
.mono { font-family: monospace; font-size: 13px; }

/* ── Status badges ── */
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-active { background: #1a3a2a; color: var(--success); }
.badge-blocked { background: #3a1a1a; color: var(--danger); }

/* ── States ── */
.empty { text-align: center; padding: 40px 20px; color: var(--muted); }
.empty-icon { font-size: 40px; margin-bottom: 12px; }
.loading { text-align: center; padding: 40px; color: var(--muted); }

.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 16px;
  display: none;
}
.alert-error { background: #3a1a1a; border: 1px solid var(--danger); color: var(--danger); }
.alert-success { background: #1a3a2a; border: 1px solid var(--success); color: var(--success); }
.alert.show { display: block; }

/* ── Divider ── */
.divider { height: 1px; background: var(--border); margin: 20px 0; }

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 480px;
}
.modal-title { font-size: 18px; font-weight: 700; margin-bottom: 20px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* ── Responsive ── */
@media (max-width: 500px) {
  .hero h1 { font-size: 24px; }
  .mac-input-wrap { flex-direction: column; }
  .modal-actions { flex-direction: column-reverse; }
  .modal-actions .btn { width: 100%; justify-content: center; }
}