:root {
  --primary: #c7e600;
  --secondary: #e53935;
  --dark: #0f0f0f;
  --dark-alt: #1c1c1c;
  --light: #f5f5f5;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--dark);
  color: var(--light);
  line-height: 1.6;
}

/* Login Page */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-alt) 100%);
}

.login-box {
  background: var(--dark-alt);
  border: 2px solid var(--primary);
  border-radius: 10px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 10px 40px rgba(199, 230, 0, 0.2);
}

.login-header {
  text-align: center;
  margin-bottom: 30px;
}

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

.login-header h1 {
  color: var(--primary);
  margin-bottom: 5px;
}

.login-header p {
  color: var(--light);
  opacity: 0.7;
}

/* Dashboard */
.dashboard-container {
  min-height: 100vh;
  background: var(--dark);
}

.dashboard-header {
  background: var(--dark-alt);
  border-bottom: 2px solid var(--primary);
  padding: 20px;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-content h1 {
  color: var(--primary);
  font-size: 1.5rem;
}

.header-content h1 i {
  margin-right: 10px;
}

/* Tabs */
.tabs {
  background: var(--dark-alt);
  border-bottom: 1px solid #333;
  display: flex;
  gap: 10px;
  padding: 0 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--light);
  padding: 15px 25px;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: var(--transition);
  font-size: 1rem;
}

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

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-btn i {
  margin-right: 8px;
}

/* Main Content */
.dashboard-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 30px 20px;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.content-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.content-header h2 {
  color: var(--light);
  font-size: 1.8rem;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  color: var(--light);
  font-weight: 500;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px;
  background: var(--dark);
  border: 1px solid #333;
  border-radius: 5px;
  color: var(--light);
  font-size: 1rem;
  transition: var(--transition);
}

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

.form-group small {
  display: block;
  margin-top: 5px;
  color: #999;
  font-size: 0.85rem;
}

/* Buttons */
.btn-primary,
.btn-secondary {
  padding: 12px 24px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--primary);
  color: var(--dark);
}

.btn-primary:hover {
  background: #b0d000;
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  background: #d32f2f;
}

#login-form .btn-primary {
  width: 100%;
  margin-top: 10px;
}

/* Items List */
.items-list {
  display: grid;
  gap: 15px;
}

.item-card {
  background: var(--dark-alt);
  border: 1px solid #333;
  border-radius: 8px;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.item-card:hover {
  border-color: var(--primary);
}

.item-info h4 {
  color: var(--primary);
  margin-bottom: 5px;
}

.item-info p {
  color: #999;
  font-size: 0.9rem;
  margin: 3px 0;
}

.item-actions {
  display: flex;
  gap: 10px;
}

.btn-icon {
  background: transparent;
  border: 1px solid #333;
  color: var(--light);
  padding: 8px 12px;
  border-radius: 5px;
  cursor: pointer;
  transition: var(--transition);
}

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

.btn-icon.delete:hover {
  border-color: var(--secondary);
  color: var(--secondary);
}

/* League Settings */
.league-settings {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

#league-form {
  background: var(--dark-alt);
  padding: 25px;
  border-radius: 8px;
  border: 1px solid #333;
}

.preview-section {
  background: var(--dark-alt);
  padding: 25px;
  border-radius: 8px;
  border: 1px solid #333;
}

.preview-section h3 {
  color: var(--primary);
  margin-bottom: 15px;
}

#preview-image {
  width: 100%;
  border-radius: 5px;
  border: 1px solid #333;
}

#no-preview {
  color: #999;
  text-align: center;
  padding: 40px;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--dark-alt);
  border: 2px solid var(--primary);
  border-radius: 10px;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid #333;
}

.modal-header h3 {
  color: var(--primary);
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--light);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
}

.close-btn:hover {
  color: var(--secondary);
}

.modal-content form {
  padding: 20px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* Messages */
.error-message {
  color: var(--secondary);
  text-align: center;
  margin-top: 15px;
  display: none;
}

.error-message.show {
  display: block;
}

.success-toast {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--primary);
  color: var(--dark);
  padding: 15px 25px;
  border-radius: 8px;
  display: none;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  box-shadow: 0 5px 20px rgba(199, 230, 0, 0.3);
  z-index: 2000;
}

.success-toast.show {
  display: flex;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.loading {
  text-align: center;
  padding: 40px;
  color: #999;
}

/* Responsive */
@media (max-width: 768px) {
  .tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
  }

  .tab-btn {
    white-space: nowrap;
  }

  .content-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }

  .league-settings {
    grid-template-columns: 1fr;
  }

  .item-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }

  .item-actions {
    width: 100%;
    justify-content: flex-end;
  }
}