:root {
  --bg-color: #0f172a;
  --panel-bg: rgba(30, 41, 59, 0.7);
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --secondary-color: #8b5cf6;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border-color: rgba(255, 255, 255, 0.1);
  --success: #10b981;
  --danger: #ef4444;
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --glass-blur: blur(12px);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Glassmorphism utils */
.glass {
  background: var(--panel-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--glass-shadow);
}

.text-blue { color: #60a5fa; }
.text-purple { color: #a78bfa; }
.text-green { color: #34d399; }

/* Screens */
.screen {
  display: none;
  min-height: 100vh;
}
.screen.active {
  display: flex;
}

/* Login Screen */
#login-screen {
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top left, #1e1b4b, #0f172a);
}

.login-card {
  width: 400px;
  padding: 40px;
  text-align: center;
  background: var(--panel-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  box-shadow: var(--glass-shadow);
  animation: slideUp 0.6s ease;
}

.logo-area { margin-bottom: 30px; }
.logo-area i { font-size: 3rem; color: var(--primary-color); margin-bottom: 10px; }

.input-group {
  position: relative;
  margin-bottom: 20px;
}

.input-group i {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.input-group input {
  width: 100%;
  padding: 15px 15px 15px 45px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: rgba(0,0,0,0.2);
  color: #fff;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.input-group input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.btn {
  width: 100%;
  padding: 15px;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.primary-btn {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(139, 92, 246, 0.4);
}

.secondary-btn {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 1px solid var(--border-color);
  width: auto;
  padding: 10px 20px;
}
.secondary-btn:hover { background: rgba(255,255,255,0.2); }

.error-msg {
  color: var(--danger);
  margin-top: 15px;
  font-size: 0.9rem;
}

/* Dashboard Layout */
#dashboard-screen {
  display: none;
  flex-direction: row;
}
#dashboard-screen.active { display: flex; }

.sidebar {
  width: 280px;
  background: var(--panel-bg);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 30px 20px;
  display: flex;
  align-items: center;
  gap: 15px;
  border-bottom: 1px solid var(--border-color);
}
.sidebar-header i { font-size: 2rem; color: var(--primary-color); }

.sidebar-nav {
  flex: 1;
  padding: 20px 0;
}

.nav-btn {
  width: 100%;
  padding: 15px 25px;
  display: flex;
  align-items: center;
  gap: 15px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.05rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.3s ease;
}

.nav-btn:hover { color: #fff; background: rgba(255,255,255,0.05); }
.nav-btn.active {
  color: #fff;
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.2) 0%, transparent 100%);
  border-left: 4px solid var(--primary-color);
}

.sidebar-footer { padding: 20px; border-top: 1px solid var(--border-color); }

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.top-header {
  padding: 20px 40px;
  background: var(--panel-bg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.user-info { display: flex; align-items: center; gap: 15px; }
.avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
}

.content-area { padding: 40px; flex: 1; overflow-y: auto; }

.panel { display: none; animation: fadeIn 0.4s ease; }
.panel.active { display: block; }

.welcome-banner {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(139, 92, 246, 0.2));
  padding: 30px;
  border-radius: 15px;
  border: 1px solid var(--border-color);
  margin-bottom: 30px;
}
.welcome-banner h3 { font-size: 1.8rem; margin-bottom: 10px; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}
.stat-card {
  background: var(--panel-bg);
  padding: 25px;
  border-radius: 15px;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 20px;
  transition: transform 0.3s ease;
}
.stat-card:hover { transform: translateY(-5px); }
.stat-card i { font-size: 2.5rem; }
.stat-info h4 { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 5px; }
.stat-info p { font-size: 1.8rem; font-weight: 700; }

.panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }

.table-container {
  background: var(--panel-bg);
  border-radius: 15px;
  border: 1px solid var(--border-color);
  overflow-x: auto;
}

table { width: 100%; border-collapse: collapse; }
th, td { padding: 15px 20px; text-align: left; border-bottom: 1px solid var(--border-color); }
th { color: var(--text-muted); font-weight: 600; background: rgba(0,0,0,0.2); }
tbody tr:hover { background: rgba(255,255,255,0.02); }

.badge { padding: 5px 10px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; }
.badge.success { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.badge.danger { background: rgba(239, 68, 68, 0.2); color: #f87171; }

.upload-area {
  background: var(--panel-bg);
  border: 2px dashed var(--primary-color);
  border-radius: 15px;
  padding: 50px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}
.upload-area i { font-size: 4rem; color: var(--primary-color); }
.upload-area input { display: block; margin: 20px 0; color: #fff; }

/* Modals */
.modal-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(5px);
  display: none; align-items: center; justify-content: center;
  z-index: 1000;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--bg-color); width: 400px;
  border-radius: 15px; border: 1px solid var(--border-color);
  animation: slideUp 0.3s ease;
}
.modal-header { padding: 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; }
.modal-body { padding: 20px; }
.modal-body input, .modal-body select {
  width: 100%; padding: 12px; margin-bottom: 15px;
  background: rgba(255,255,255,0.05); border: 1px solid var(--border-color);
  color: #fff; border-radius: 8px;
}
.modal-body select option { background: var(--bg-color); }
.close-btn { background: none; border: none; color: #fff; font-size: 1.2rem; cursor: pointer; }

/* Animations */
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Column Menu */
.column-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 5px;
  background: #1e293b; /* Fundo sólido para evitar transparência confusa */
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999; /* Z-index bem alto para ficar acima de tudo */
  box-shadow: 0 10px 25px rgba(0,0,0,0.5);
  min-width: 180px;
}
.column-menu.hidden {
  display: none;
}
.column-menu label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  cursor: pointer;
  color: #fff;
  white-space: nowrap; /* Evita que o texto quebre */
  padding: 2px 0;
}
.column-menu label:hover {
  color: var(--primary-color);
}
.hidden-col {
  display: none !important;
}

/* Date Input Calendar Icon */
input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(1);
  cursor: pointer;
}

/* Export Buttons */
.btn-export {
  padding: 10px 15px;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.excel-btn {
  background: #107c41;
  color: #fff;
}
.excel-btn:hover {
  background: #0e6b38;
}
.pdf-btn {
  background: #d32f2f;
  color: #fff;
}
.pdf-btn:hover {
  background: #b71c1c;
}