:root {
  --primary-color: #40826f;
  --secondary-color: #2f665b;
  --text-color: #ffffff;
  --border-color: #255047;
  --hover-color: #4a9a87;
  --shadow-color: rgba(64, 130, 111, 0.5);
  --message-bg: #336b5e;
  --message-hover: #3d7d6e;
  --modal-bg: #2f665b;
  --input-bg: #40826f;
  --input-text: #ffffff;
  --input-placeholder: rgba(255, 255, 255, 0.7);
}

body {
  background-color: var(--primary-color);
  color: var(--text-color);
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.navbar {
  background-color: var(--secondary-color);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  box-shadow: 0 4px 15px var(--shadow-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  color: var(--text-color);
  font-size: 1.75rem;
  font-weight: 700;
  text-shadow: 0 0 10px var(--hover-color);
}

.language-selector select {
  background-color: var(--primary-color);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  box-shadow: 0 0 10px var(--shadow-color);
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.language-selector select:hover,
.language-selector select:focus {
  background-color: var(--hover-color);
  outline: none;
}

.container {
  flex: 1;
  padding: 2rem;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.email-container {
  background-color: var(--secondary-color);
  border-radius: 16px;
  padding: 2rem;
  margin-top: 2rem;
  box-shadow: 0 8px 20px var(--shadow-color);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.messages-container {
  background-color: var(--message-bg);
  border-radius: 12px;
  padding: 1.5rem;
  margin-top: 1rem;
  box-shadow: 0 4px 12px var(--shadow-color);
}

.messages-table-container {
  max-height: 400px;
  overflow-y: auto;
  border-radius: 8px;
  background: var(--primary-color);
}

.messages-table {
  width: 100%;
  border-collapse: collapse;
}

.messages-table th {
  background: var(--secondary-color);
  color: var(--text-color);
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 1;
}

.messages-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-color);
}

.message-row {
  cursor: pointer;
  transition: all 0.3s ease;
}

.message-row:hover {
  background: var(--message-hover);
}

/* Message Detail Modal */
.modal-header .btn-link {
  color: var(--text-color);
  text-decoration: none;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.modal-header .btn-link:hover {
  color: var(--hover-color);
}

.action-group {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}

.action-group .btn-link {
  border-radius: 4px;
}

.action-group .btn-link:hover {
  background: rgba(255, 255, 255, 0.1);
}

.message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.message-header .from {
  font-weight: 600;
  font-size: 1.1rem;
}

.message-header .date {
  color: var(--text-color);
  opacity: 0.8;
}

.subject {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.message-body {
  color: var(--text-color);
  line-height: 1.6;
  white-space: pre-wrap;
}

.email-selector {
  background-color: var(--primary-color);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1rem;
  font-size: 1.1rem;
  width: 100%;
  box-shadow: inset 0 0 10px var(--shadow-color);
  transition: box-shadow 0.3s ease;
}

.email-selector:hover,
.email-selector:focus {
  box-shadow: inset 0 0 15px var(--hover-color);
  outline: none;
}

.action-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}

.btn-action {
  background-color: var(--primary-color);
  color: var(--text-color);
  border: none;
  border-radius: 12px;
  padding: 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 6px 15px var(--shadow-color);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-action:hover {
  background-color: var(--hover-color);
  box-shadow: 0 8px 20px var(--hover-color);
  color: var(--text-color);
  text-decoration: none;
}

.btn-action i {
  font-size: 1.3rem;
}

.footer {
  background-color: var(--secondary-color);
  color: var(--text-color);
  text-align: center;
  padding: 1rem 2rem;
  border-top: 1px solid var(--border-color);
  box-shadow: 0 -4px 15px var(--shadow-color);
  font-size: 0.9rem;
  margin-top: auto;
}

.cookie-notice {
  position: fixed;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--secondary-color);
  padding: 1rem 2rem;
  border-radius: 12px;
  box-shadow: 0 6px 15px var(--shadow-color);
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 1000;
}

.btn-close {
  background-color: var(--hover-color);
  color: var(--text-color);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
  box-shadow: 0 4px 10px var(--hover-color);
  transition: background-color 0.3s ease;
}

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

/* Modal styles */
.modal-content {
  background-color: var(--modal-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
}

.modal-header {
  background-color: var(--secondary-color);
  border-bottom: 1px solid var(--border-color);
  border-radius: 16px 16px 0 0;
  padding: 1.5rem;
}

.modal-title {
  color: var(--text-color);
  font-weight: 600;
}

.modal-body {
  padding: 1.5rem;
}

.modal-body .form-label {
  color: var(--text-color);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.modal-body .form-control {
  background-color: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--input-text);
  border-radius: 8px;
  padding: 0.75rem 1rem;
}

.modal-body .form-control::placeholder {
  color: var(--input-placeholder);
}

.modal-body .form-control:focus {
  background-color: var(--input-bg);
  border-color: var(--hover-color);
  color: var(--input-text);
  box-shadow: 0 0 0 0.25rem var(--shadow-color);
}

.modal-body .form-select {
  background-color: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--input-text);
  border-radius: 8px;
  padding: 0.75rem 1rem;
}

.modal-body .form-select:focus {
  background-color: var(--input-bg);
  border-color: var(--hover-color);
  color: var(--input-text);
  box-shadow: 0 0 0 0.25rem var(--shadow-color);
}

.modal-body .btn-primary {
  background-color: var(--hover-color);
  border: none;
  color: var(--text-color);
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.modal-body .btn-primary:hover {
  background-color: var(--primary-color);
  transform: translateY(-2px);
}

.modal-body .btn-secondary {
  background-color: var(--secondary-color);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.modal-body .btn-secondary:hover {
  background-color: var(--primary-color);
  transform: translateY(-2px);
}

/* Loading spinner */
.loading {
  display: inline-block;
  width: 1.5rem;
  height: 1.5rem;
  border: 3px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--text-color);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Toast notifications */
.toast {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background-color: var(--secondary-color);
  color: var(--text-color);
  padding: 1rem 2rem;
  border-radius: 12px;
  box-shadow: 0 6px 15px var(--shadow-color);
  z-index: 1000;
  font-weight: 600;
  font-size: 1rem;
}

.toast.success {
  border-left: 6px solid #28a745;
}

.toast.error {
  border-left: 6px solid #dc3545;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }
  
  .email-container {
    padding: 1rem;
    margin-top: 1rem;
  }

  .action-buttons {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 0.75rem;
  }

  .btn-action {
    padding: 0.75rem;
    font-size: 0.9rem;
  }

  .messages-container {
    padding: 1rem;
  }

  .messages-list {
    max-height: 300px;
  }

  .message-item {
    padding: 0.75rem;
  }
}