/* ===== RESET & BASE ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --bg-card: #1c2128;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --border: #30363d;
  --accent: #58a6ff;
  --accent-hover: #79b8ff;
  --success: #3fb950;
  --success-bg: rgba(63,185,80,0.15);
  --warning: #d29922;
  --warning-bg: rgba(210,153,34,0.15);
  --danger: #f85149;
  --danger-bg: rgba(248,81,73,0.15);
  --purple: #bc8cff;
  --purple-bg: rgba(188,140,255,0.15);
  --radius: 8px;
  --shadow: 0 2px 12px rgba(0,0,0,0.4);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

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

/* ===== AUTH PAGES ===== */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: linear-gradient(135deg, var(--bg-primary) 0%, #161b32 50%, var(--bg-secondary) 100%);
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow);
}

.auth-card h1 {
  font-size: 1.75rem;
  text-align: center;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.auth-card .subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 0.9rem;
}

.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  margin-bottom: 6px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(88,166,255,0.15);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}
.btn-primary { background: var(--accent); color: #000; width: 100%; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-success { background: var(--success); color: #000; }
.btn-success:hover { background: #4cc764; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #ff6e68; }
.btn-warning { background: var(--warning); color: #000; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
}
.btn-outline:hover { background: var(--bg-tertiary); }
.btn-block { width: 100%; }

.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.google-btn {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  margin-top: 12px;
}
.google-btn:hover { background: var(--border); }

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.divider::before, .divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.auth-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 0.875rem;
  border: 1px solid transparent;
}
.alert-danger { background: var(--danger-bg); border-color: var(--danger); color: var(--danger); }
.alert-success { background: var(--success-bg); border-color: var(--success); color: var(--success); }
.alert-warning { background: var(--warning-bg); border-color: var(--warning); color: var(--warning); }

/* ===== DASHBOARD LAYOUT ===== */
.dashboard { display: flex; min-height: 100vh; }

.sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 20px 0;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform 0.3s;
}

.sidebar-header {
  padding: 0 24px 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 10px;
}

.sidebar-header h2 {
  font-size: 1.25rem;
  color: var(--accent);
}
.sidebar-header .user-info {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}
.sidebar-nav a:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.sidebar-nav a.active {
  background: rgba(88,166,255,0.1);
  color: var(--accent);
  border-left-color: var(--accent);
}

.sidebar-footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

.main-content {
  flex: 1;
  margin-left: 260px;
  padding: 32px;
}

.page-header {
  margin-bottom: 32px;
}
.page-header h1 { font-size: 1.75rem; margin-bottom: 4px; }
.page-header p { color: var(--text-secondary); }

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: inline-flex;
}
.stat-card .stat-icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}
.stat-card .stat-value {
  font-size: 2rem;
  font-weight: 700;
}
.stat-card .stat-number {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
}
.stat-card .stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ===== TABLE ===== */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
th {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}
td { color: var(--text-primary); font-size: 0.9rem; }
tr:hover td { background: rgba(88,166,255,0.05); }

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-purple { background: var(--purple-bg); color: var(--purple); }

/* ===== SECTION ===== */
.section {
  margin-bottom: 24px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.section h2 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  color: var(--text-primary);
}
.section h3 {
  font-size: 0.95rem;
  margin-bottom: 12px;
  color: var(--accent);
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  max-width: 450px;
  width: 100%;
  box-shadow: 0 4px 24px rgba(0,0,0,0.6);
}
.modal h2 { margin-bottom: 20px; }

/* ===== PIX QR ===== */
.pix-container { text-align: center; }
.pix-container canvas, .pix-container img {
  max-width: 250px;
  margin: 16px auto;
}
.pix-code {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-family: monospace;
  font-size: 0.75rem;
  word-break: break-all;
  margin: 16px 0;
  user-select: all;
}

/* ===== MOBILE ===== */
.mobile-header {
  display: none;
  padding: 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 99;
}

.menu-toggle {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
}

.inline-flex {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.user-list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.user-list-item:last-child { border-bottom: none; }
.user-list-item .user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #000;
  font-size: 0.85rem;
}
.user-list-item .user-info { flex: 1; }
.user-list-item .user-name { font-size: 0.9rem; font-weight: 600; }
.user-list-item .user-email { font-size: 0.8rem; color: var(--text-secondary); }

.settings-form { max-width: 500px; }

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: 280px;
  }
  .sidebar.open { transform: translateX(0); box-shadow: 2px 0 20px rgba(0,0,0,0.5); }
  .sidebar-overlay.active { display: block; }
  .mobile-header { display: flex; align-items: center; gap: 12px; }
  .main-content { margin-left: 0; padding: 80px 16px 16px; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-card { padding: 16px; }
  .stat-card .stat-number { font-size: 1.4rem; }

  table { font-size: 0.8rem; }
  th, td { padding: 8px 10px; }

  .auth-card { padding: 24px; }
  .auth-card h1 { font-size: 1.4rem; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .main-content { padding: 70px 10px 10px; }
  .section { padding: 16px; }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.3s ease-out; }

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading { display: flex; align-items: center; justify-content: center; padding: 40px; }