@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --primary: #00E5FF;
  --primary-dark: #00B8CC;
  --secondary: #00E5FF;
  --accent: #00E5FF;
  --dark: #0F172A;
  --dark-light: #1E293B;
  --text: #F8FAFC;
  --text-light: #CBD5E1;
  --glass: rgba(248, 250, 252, 0.1);
  --glass-border: rgba(248, 250, 252, 0.2);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--dark);
  overflow-x: hidden;
  line-height: 1.6;
}

/* Sidebar Modern */
.sidebar {
  background: var(--dark-light) !important;
  border-right: 1px solid rgba(0, 229, 255, 0.2);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.sidebar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.05) 0%, transparent 100%);
  pointer-events: none;
}

.sidebar .nav-link {
  color: var(--text-light) !important;
  padding: 0.75rem 1rem;
  margin: 0.25rem 0;
  border-radius: 0;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  border-left: 3px solid transparent;
}

.sidebar .nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--primary);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.sidebar .nav-link:hover {
  color: var(--primary) !important;
  background: rgba(0, 229, 255, 0.1);
  border-left-color: var(--primary);
  padding-left: 1.25rem;
}

.sidebar .nav-link:hover::before {
  transform: scaleY(1);
}

.sidebar .nav-link.text-white {
  color: var(--primary) !important;
  background: rgba(0, 229, 255, 0.15);
  border-left-color: var(--primary);
  font-weight: 600;
}

.sidebar .nav-link.text-white::before {
  transform: scaleY(1);
}

.sidebar a.fw-bold {
  color: var(--primary) !important;
  font-size: 1.2rem;
  padding: 1rem;
  display: block;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
}

.sidebar a.fw-bold:hover {
  color: var(--primary) !important;
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

.sidebar a.fw-bold i {
  color: var(--primary);
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

/* Main Content */
main {
  background: var(--dark);
  min-height: 100vh;
  padding: 2rem !important;
}

main h1, main h2, main h3, main h4, main h5, main h6 {
  color: var(--text);
  font-weight: 700;
}

main h1 {
  font-size: 2rem;
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: 1rem;
}

main h1::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--primary);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

/* Cards Modern */
.card {
  background: var(--dark-light) !important;
  border: 1px solid rgba(0, 229, 255, 0.2) !important;
  border-radius: 0 !important;
  transition: all 0.3s ease;
  overflow: hidden;
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  border-color: rgba(0, 229, 255, 0.5) !important;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 229, 255, 0.2);
}

.card:hover::before {
  opacity: 1;
}

.card-header {
  background: rgba(0, 229, 255, 0.1) !important;
  border-bottom: 1px solid rgba(0, 229, 255, 0.2) !important;
  color: var(--text) !important;
  font-weight: 600;
  padding: 1rem 1.5rem;
}

.card-body {
  padding: 1.5rem;
  color: var(--text-light);
}

/* Stats Cards */
.card-body h6 {
  color: var(--text-light) !important;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.card-body .h3 {
  color: var(--primary) !important;
  font-weight: 800;
  font-size: 2rem;
  text-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
}

/* Buttons Modern */
.btn {
  border-radius: 0;
  font-weight: 600;
  padding: 0.6rem 1.5rem;
  transition: all 0.3s ease;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--primary);
  color: var(--dark);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--dark);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.5);
  transform: translateY(-2px);
}

.btn-outline-primary {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-outline-primary:hover {
  background: var(--primary);
  color: var(--dark);
  border-color: var(--primary);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
  transform: translateY(-2px);
}

.btn-outline-primary.active {
  background: var(--primary) !important;
  color: var(--dark) !important;
  border-color: var(--primary) !important;
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.4) !important;
  font-weight: 700 !important;
  opacity: 1 !important;
}

.period-btn {
  cursor: pointer !important;
  pointer-events: auto !important;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

.period-btn:not(.active) {
  opacity: 0.7;
}

.period-btn:not(.active):hover {
  opacity: 1;
  background: rgba(0, 229, 255, 0.1);
}

.btn-outline-secondary {
  border: 2px solid var(--text-light);
  color: var(--text-light);
  background: transparent;
}

.btn-outline-secondary:hover {
  background: var(--text-light);
  color: var(--dark);
  border-color: var(--text-light);
}

.btn-outline-light {
  border: 2px solid var(--text-light);
  color: var(--text-light);
  background: transparent;
}

.btn-outline-light:hover {
  background: var(--text-light);
  color: var(--dark);
  border-color: var(--text-light);
}

.btn-outline-danger {
  border: 2px solid #ef4444;
  color: #ef4444;
  background: transparent;
}

.btn-outline-danger:hover {
  background: #ef4444;
  color: white;
  border-color: #ef4444;
}

.btn-sm {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
}

/* Forms Modern */
.form-label {
  color: var(--text) !important;
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.form-control {
  background: var(--dark) !important;
  border: 1px solid rgba(0, 229, 255, 0.2) !important;
  color: var(--text) !important;
  border-radius: 0;
  padding: 0.75rem 1rem;
  transition: all 0.3s ease;
}

.form-control:focus {
  background: var(--dark) !important;
  border-color: var(--primary) !important;
  color: var(--text) !important;
  box-shadow: 0 0 0 0.2rem rgba(0, 229, 255, 0.25);
  outline: none;
}

.form-control::placeholder {
  color: var(--text-light);
  opacity: 0.5;
}

textarea.form-control {
  resize: vertical;
}

.form-select {
  background: var(--dark) !important;
  border: 1px solid rgba(0, 229, 255, 0.2) !important;
  color: var(--text) !important;
  border-radius: 0;
  padding: 0.75rem 1rem;
}

.form-select:focus {
  background: var(--dark) !important;
  border-color: var(--primary) !important;
  color: var(--text) !important;
  box-shadow: 0 0 0 0.2rem rgba(0, 229, 255, 0.25);
  outline: none;
}

.input-group-text {
  background: var(--dark) !important;
  border: 1px solid rgba(0, 229, 255, 0.2) !important;
  color: var(--primary) !important;
}

.form-check-input {
  background-color: var(--dark);
  border: 1px solid rgba(0, 229, 255, 0.3);
}

.form-check-input:checked {
  background-color: var(--primary);
  border-color: var(--primary);
}

.form-check-label {
  color: var(--text-light);
}

/* Tables Modern */
.table {
  color: var(--text-light) !important;
  background: var(--dark-light);
}

.table thead th {
  background: rgba(0, 229, 255, 0.1);
  color: var(--primary) !important;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 1px;
  border-bottom: 2px solid rgba(0, 229, 255, 0.3) !important;
  padding: 1rem;
}

.table tbody td {
  border-color: rgba(0, 229, 255, 0.1) !important;
  padding: 1rem;
  vertical-align: middle;
}

.table tbody tr {
  transition: all 0.3s ease;
}

.table tbody tr:hover {
  background: rgba(0, 229, 255, 0.05);
}

.table-bordered {
  border: 1px solid rgba(0, 229, 255, 0.2) !important;
}

/* Modal Modern */
.modal-content {
  background: var(--dark-light) !important;
  border: 1px solid rgba(0, 229, 255, 0.3) !important;
  border-radius: 0 !important;
}

.modal-header {
  background: rgba(0, 229, 255, 0.1);
  border-bottom: 1px solid rgba(0, 229, 255, 0.2) !important;
  color: var(--text) !important;
}

.modal-title {
  color: var(--primary) !important;
  font-weight: 700;
}

.modal-body {
  color: var(--text-light);
  background: var(--dark-light);
}

.modal-footer {
  background: var(--dark-light);
  border-top: 1px solid rgba(0, 229, 255, 0.2) !important;
}

.btn-close {
  filter: invert(1);
  opacity: 0.8;
}

.btn-close:hover {
  opacity: 1;
}

/* Badges */
.badge {
  border-radius: 0;
  padding: 0.4rem 0.8rem;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary {
  background: var(--primary);
  color: var(--dark);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
}

.badge-secondary {
  background: rgba(203, 213, 225, 0.2);
  color: var(--text-light);
  border: 1px solid rgba(203, 213, 225, 0.3);
}

.badge-success {
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

/* Alerts */
.alert {
  border-radius: 0;
  border: none;
}

.alert-success {
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
  border-left: 3px solid #22c55e;
}

.alert-danger {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
  border-left: 3px solid #ef4444;
}

.alert-info {
  background: rgba(0, 229, 255, 0.2);
  color: var(--primary);
  border-left: 3px solid var(--primary);
}

/* User Info in Sidebar */
.sidebar .mt-auto {
  border-top-color: rgba(0, 229, 255, 0.2) !important;
  padding-top: 1.5rem;
}

.sidebar small {
  color: var(--text-light) !important;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    width: 100% !important;
    min-height: auto !important;
  }
  
  main {
    padding: 1rem !important;
  }
  
  .card-body .h3 {
    font-size: 1.5rem;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--dark);
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 229, 255, 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 229, 255, 0.5);
}