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

:root {
  --bg: #0f0f1a;
  --card: #1a1a2e;
  --card2: #16213e;
  --primary: #6c63ff;
  --primary-hover: #5a52e0;
  --success: #00c853;
  --warning: #ffd600;
  --danger: #ff1744;
  --text: #e0e0e0;
  --text2: #a0a0b8;
  --border: #2a2a4a;
  --radius: 12px;
}

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

/* ===== LOGIN / CADASTRO ===== */
.auth-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  background: radial-gradient(ellipse at 30% 20%, rgba(108,99,255,0.08) 0%, transparent 60%);
}

.auth-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.auth-card h1 {
  font-size: 24px;
  margin-bottom: 8px;
  text-align: center;
}

.auth-card p.sub {
  color: var(--text2);
  text-align: center;
  margin-bottom: 28px;
  font-size: 14px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text2);
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  transition: border 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
}

.btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--primary);
  color: #fff;
}

.btn:hover { background: var(--primary-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #d50000; }
.btn-sm { padding: 8px 16px; width: auto; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); }

.auth-link {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
  color: var(--text2);
}

.auth-link a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.auth-link a:hover { text-decoration: underline; }

.alert {
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
  display: none;
}

.alert.visible { display: block; }
.alert.erro { background: rgba(255,23,68,0.1); border: 1px solid rgba(255,23,68,0.3); color: #ff5252; }
.alert.sucesso { background: rgba(0,200,83,0.1); border: 1px solid rgba(0,200,83,0.3); color: #00e676; }

/* ===== LAYOUT (Dashboard/Admin) ===== */
.app-layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
}

.sidebar h2 {
  font-size: 18px;
  margin-bottom: 4px;
}

.sidebar .sub {
  color: var(--text2);
  font-size: 12px;
  margin-bottom: 24px;
}

.sidebar nav { flex: 1; }

.sidebar nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--text2);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 4px;
  transition: all 0.2s;
}

.sidebar nav a:hover { background: var(--bg); color: var(--text); }
.sidebar nav a.active { background: rgba(108,99,255,0.1); color: var(--primary); }

.sidebar .user-info {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  font-size: 13px;
  color: var(--text2);
}

.main-content {
  flex: 1;
  padding: 32px;
  max-width: 1200px;
}

.main-content h1 {
  font-size: 26px;
  margin-bottom: 24px;
}

/* ===== CARDS / GRID ===== */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all 0.2s;
}

.card:hover { border-color: rgba(108,99,255,0.3); }

.card .nome {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}

.card .status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.status-badge.open { background: rgba(0,200,83,0.15); color: var(--success); }
.status-badge.close { background: rgba(255,23,68,0.15); color: var(--danger); }
.status-badge.connecting { background: rgba(255,214,0,0.15); color: var(--warning); }

.card .acoes {
  margin-top: 16px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.card .acoes .btn { font-size: 12px; padding: 6px 14px; width: auto; }

/* ===== QR CODE ===== */
.qr-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  justify-content: center;
  align-items: center;
  z-index: 999;
}

.qr-overlay.visible { display: flex; }

.qr-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  max-width: 380px;
  width: 90%;
}

.qr-card img {
  width: 280px;
  height: 280px;
  image-rendering: pixelated;
  margin: 16px 0;
  border-radius: 8px;
}

.qr-card h3 { margin-bottom: 8px; }
.qr-card .close-btn {
  margin-top: 16px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 8px 24px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}

/* ===== MODAL ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  justify-content: center;
  align-items: center;
  z-index: 998;
}

.modal-overlay.visible { display: flex; }

.modal-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  width: 90%;
  max-width: 400px;
}

.modal-card h3 { margin-bottom: 16px; }
.modal-card .form-group { margin-bottom: 12px; }

/* ===== TABLE ===== */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--text2); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
tr:hover td { background: rgba(108,99,255,0.03); }

/* ===== TOGGLE SWITCH ===== */
.toggle-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.toggle {
  position: relative;
  width: 48px;
  height: 26px;
  cursor: pointer;
}

.toggle input { display: none; }

.toggle .slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 26px;
  transition: 0.3s;
}

.toggle .slider::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  left: 3px;
  bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: 0.3s;
}

.toggle input:checked + .slider { background: var(--success); }
.toggle input:checked + .slider::before { transform: translateX(22px); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .sidebar { width: 60px; padding: 16px 8px; }
  .sidebar h2, .sidebar .sub, .sidebar nav a span, .sidebar .user-info { display: none; }
  .sidebar nav a { justify-content: center; padding: 10px; }
  .main-content { padding: 16px; }
  .grid { grid-template-columns: 1fr; }
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text2);
}

.empty-state .icon { font-size: 48px; margin-bottom: 16px; opacity: 0.3; }
.empty-state h3 { color: var(--text); margin-bottom: 8px; }
.empty-state p { font-size: 14px; }

/* ===== LOADING ===== */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text2);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 12px;
}

@keyframes spin { to { transform: rotate(360deg); } }

.reload-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 8px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}

.reload-btn:hover { border-color: var(--primary); color: var(--text); }