/* ============================================
   CSS Variables - Design System
   ============================================ */
:root {
  /* Colors - Dark Mode com tema de futebol */
  --primary-green: #00ff41;
  --primary-green-dark: #00cc34;
  --primary-green-light: #66ff8f;
  --field-green: #1a4d2e;
  --field-green-light: #2d6b4a;
  
  --bg-dark: #0a0e0d;
  --bg-dark-secondary: #121816;
  --bg-dark-tertiary: #1a221f;
  --bg-card: #1e2826;
  --bg-card-hover: #252e2b;
  
  --text-primary: #e8f5e9;
  --text-secondary: #b0bec5;
  --text-muted: #78909c;
  
  --border-color: #2d3a36;
  --border-hover: #3d4d48;
  
  --success: #4caf50;
  --error: #f44336;
  --warning: #ff9800;
  --info: #2196f3;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(0, 255, 65, 0.3);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-secondary) 100%);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Import Google Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
  color: var(--text-secondary);
}

a {
  color: var(--primary-green);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-green-light);
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-md);
}

/* ============================================
   Header/Navbar
   ============================================ */
.navbar {
  background: var(--bg-dark-tertiary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
}

.navbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.navbar-brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-green);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.navbar-brand::before {
  content: '💰';
  font-size: 1.5rem;
}

.navbar-actions {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.user-info {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.user-info::before {
  content: '👤';
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  text-decoration: none;
  font-family: var(--font-family);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-green) 0%, var(--field-green-light) 100%);
  color: var(--bg-dark);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.btn-danger {
  background: var(--error);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background: #d32f2f;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: var(--font-size-lg);
}

.btn-block {
  width: 100%;
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}

.card-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-green);
  margin-bottom: var(--spacing-xs);
}

.card-subtitle {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.card-body {
  margin-bottom: var(--spacing-md);
}

.card-footer {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.card-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.card-info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
}

.card-info-label {
  color: var(--text-muted);
}

.card-info-value {
  color: var(--text-primary);
  font-weight: 600;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-dark-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(0, 255, 65, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-error {
  color: var(--error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

/* ============================================
   Tables
   ============================================ */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
}

.table thead {
  background: var(--bg-dark-tertiary);
}

.table th {
  padding: var(--spacing-sm);
  text-align: left;
  font-weight: 600;
  color: var(--primary-green);
  border-bottom: 2px solid var(--border-color);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.table td {
  padding: var(--spacing-sm);
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.table tbody tr {
  transition: background var(--transition-fast);
}

.table tbody tr:hover {
  background: var(--bg-card-hover);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* ============================================
   Badges & Status
   ============================================ */
.badge {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success {
  background: var(--success);
  color: white;
}

.badge-error {
  background: var(--error);
  color: white;
}

.badge-warning {
  background: var(--warning);
  color: var(--bg-dark);
}

.badge-info {
  background: var(--info);
  color: white;
}

/* ============================================
   Grid System
   ============================================ */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ============================================
   Tabs
   ============================================ */
.tabs {
  display: flex;
  gap: var(--spacing-sm);
  border-bottom: 2px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
  overflow-x: auto;
}

.tab {
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tab:hover {
  color: var(--text-primary);
}

.tab.active {
  color: var(--primary-green);
}

.tab.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary-green);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn var(--transition-normal);
}

/* ============================================
   Utilities
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.hidden { display: none !important; }

.flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-center { 
  display: flex; 
  justify-content: center; 
  align-items: center; 
}
.flex-between { 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
}
.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }

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

@keyframes slideIn {
  from { transform: translateX(-20px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.animate-fade-in {
  animation: fadeIn var(--transition-normal);
}

.animate-slide-in {
  animation: slideIn var(--transition-normal);
}

/* ============================================
   Loading Spinner
   ============================================ */
.spinner {
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--primary-green);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 14, 13, 0.9);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

/* ============================================
   Alert Messages
   ============================================ */
.alert {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  border-left: 4px solid;
}

.alert-success {
  background: rgba(76, 175, 80, 0.1);
  border-color: var(--success);
  color: var(--success);
}

.alert-error {
  background: rgba(244, 67, 54, 0.1);
  border-color: var(--error);
  color: var(--error);
}

.alert-warning {
  background: rgba(255, 152, 0, 0.1);
  border-color: var(--warning);
  color: var(--warning);
}

.alert-info {
  background: rgba(33, 150, 243, 0.1);
  border-color: var(--info);
  color: var(--info);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  :root {
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.375rem;
  }
  
  .navbar-content {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .table-container {
    font-size: var(--font-size-sm);
  }
  
  .card {
    padding: var(--spacing-sm);
  }
  
  .btn {
    width: 100%;
  }
}

/* ============================================
   Page-Specific Styles
   ============================================ */

/* Login Page */
.login-container {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-md);
  background: 
    radial-gradient(circle at 20% 50%, rgba(26, 77, 46, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(0, 255, 65, 0.1) 0%, transparent 50%),
    linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-secondary) 100%);
}

.login-card {
  width: 100%;
  max-width: 400px;
}

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.login-logo {
  font-size: 4rem;
  margin-bottom: var(--spacing-sm);
}

/* Dashboard Page */
.dashboard-container {
  min-height: 100vh;
  padding-bottom: var(--spacing-xl);
}

.dashboard-header {
  padding: var(--spacing-lg) 0;
  text-align: center;
}

.dashboard-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Admin Page */
.admin-container {
  min-height: 100vh;
  padding-bottom: var(--spacing-xl);
}

.admin-header {
  padding: var(--spacing-lg) 0;
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: linear-gradient(135deg, var(--field-green) 0%, var(--field-green-light) 100%);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
}

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--primary-green);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.admin-section {
  margin-bottom: var(--spacing-xl);
}

.section-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
  color: var(--primary-green);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.section-title::before {
  content: '';
  width: 4px;
  height: 1.5rem;
  background: var(--primary-green);
  border-radius: var(--radius-sm);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

.empty-state-text {
  font-size: var(--font-size-lg);
}