/* public/css/style.css */

:root {
  --primary-color: #4a6fa5;
  --primary-dark: #3a5982;
  --secondary-color: #6c757d;
  --light-color: #f8f9fa;
  --dark-color: #343a40;
  --success-color: #28a745;
  --danger-color: #dc3545;
  --warning-color: #ffc107;
  --info-color: #17a2b8;
  --border-color: #dee2e6;
  --shadow-color: rgba(0, 0, 0, 0.15);
  --message-bg: #e9ecef;
  --message-own-bg: #d1e7ff;
  --sidebar-bg: #f8f9fa;
  --header-bg: #ffffff;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
}

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.5;
  color: var(--dark-color);
  background-color: #e5e5e5;
  height: 100vh;
  overflow: hidden;
}

.container {
  max-width: 1200px;
  height: 100vh;
  margin: 0 auto;
}

.hidden {
  display: none !important;
}

.card {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 6px var(--shadow-color);
  overflow: hidden;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.card-header {
  background-color: var(--primary-color);
  color: white;
  padding: 1rem;
  text-align: center;
}

.card-body {
  padding: 1.5rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
}

.btn {
  display: inline-block;
  font-weight: 500;
  text-align: center;
  vertical-align: middle;
  user-select: none;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: 4px;
  transition: all 0.15s ease-in-out;
  cursor: pointer;
  border: none;
}

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

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

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

.btn-secondary:hover {
  background-color: #5a6268;
}

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

.btn-danger:hover {
  background-color: #c82333;
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  border-radius: 3px;
}

.btn-tool {
  background-color: transparent;
  color: var(--secondary-color);
  padding: 0.5rem;
  font-size: 1.25rem;
}

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

#login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

#login-form button {
  width: 100%;
  margin-top: 1rem;
}

.error-message {
  color: var(--danger-color);
  margin-top: 1rem;
  font-size: 0.875rem;
}

/* Chat Container */
#chat-container {
  display: flex;
  height: 100vh;
}

.chat-sidebar {
  width: 250px;
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--header-bg);
}

.sidebar-header h2 {
  font-size: 1.25rem;
  margin: 0;
}

.active-users {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.user-item {
  padding: 0.5rem 0;
  display: flex;
  align-items: center;
}

.user-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success-color);
  margin-right: 0.5rem;
}

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

.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: white;
}

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

.chat-header h1 {
  font-size: 1.5rem;
  margin: 0;
}

#user-info {
  font-size: 0.875rem;
  color: var(--secondary-color);
}

#current-user {
  font-weight: 600;
  color: var(--dark-color);
}

.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  background-color: #f5f7fa;
}

.message {
  max-width: 70%;
  margin-bottom: 1rem;
  padding: 0.75rem;
  border-radius: 8px;
  background-color: var(--message-bg);
  box-shadow: 0 1px 2px var(--shadow-color);
}

.message.own-message {
  background-color: var(--message-own-bg);
  margin-left: auto;
}

.message-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.message-sender {
  font-weight: 600;
  color: var(--primary-color);
}

.message-time {
  color: var(--secondary-color);
}

.message-content {
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.file-message {
  display: flex;
  align-items: center;
  padding: 0.5rem;
  background-color: rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.file-icon {
  font-size: 2rem;
  margin-right: 0.75rem;
  color: var(--secondary-color);
}

.file-info {
  flex: 1;
}

.file-name {
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.file-size {
  font-size: 0.75rem;
  color: var(--secondary-color);
}

.file-download {
  white-space: nowrap;
  margin-left: 1rem;
}

.formatted-text-container {
  background-color: rgba(0, 0, 0, 0.05);
  border-radius: 4px;
  padding: 0.75rem;
  position: relative;
}

.formatted-text-content {
  max-height: 300px;
  overflow-y: auto;
  font-family: monospace;
  white-space: pre-wrap;
  background-color: #f8f9fa;
  padding: 0.75rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.copy-formatted-btn {
  display: inline-block;
}

.typing-indicator {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--secondary-color);
  font-style: italic;
}

.typing-dots {
  display: inline-block;
  animation: typing 1s infinite;
}

@keyframes typing {
  0% { opacity: 0.3; }
  50% { opacity: 1; }
  100% { opacity: 0.3; }
}

.chat-tools {
  padding: 1rem;
  border-top: 1px solid var(--border-color);
}

.format-tools {
  display: flex;
  margin-bottom: 0.5rem;
}

.message-form {
  display: flex;
  align-items: center;
}

#message-input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
  resize: none;
  min-height: 2.5rem;
  max-height: 150px;
  margin-right: 0.75rem;
  font-family: var(--font-family);
}

/* Modal Styles */
.modal {
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: white;
  border-radius: 8px;
  width: 90%;
  max-width: 600px;
  box-shadow: 0 4px 8px var(--shadow-color);
  animation: modalFadeIn 0.3s;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.modal-header h2 {
  margin: 0;
  font-size: 1.25rem;
}

.close-modal {
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--secondary-color);
}

.modal-body {
  padding: 1.5rem;
}

.formatted-text-preview {
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 1rem;
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 1rem;
  background-color: #f8f9fa;
  font-family: monospace;
  white-space: pre-wrap;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Responsive styles */
@media (max-width: 768px) {
  #chat-container {
    flex-direction: column;
  }

  .chat-sidebar {
    width: 100%;
    height: 60px;
    flex-direction: row;
    order: 2;
  }

  .sidebar-header {
    width: 100px;
    border-right: 1px solid var(--border-color);
    border-bottom: none;
  }

  .active-users {
    display: flex;
    padding: 0 1rem;
    align-items: center;
    overflow-x: auto;
  }

  .user-item {
    margin-right: 1rem;
    white-space: nowrap;
  }

  .sidebar-footer {
    padding: 0.5rem;
    border-top: none;
    border-left: 1px solid var(--border-color);
  }

  .chat-main {
    order: 1;
    height: calc(100vh - 60px);
  }

  .message {
    max-width: 85%;
  }
}

.message-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  align-items: center;
}

.message-sender {
  font-weight: 600;
  color: var(--primary-color);
  margin-right: auto;
}

.message-time {
  color: var(--secondary-color);
  margin-right: 0.5rem;
}

.delete-message-btn {
  padding: 0.15rem 0.4rem;
  font-size: 0.75rem;
  color: white;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.delete-message-btn:hover {
  opacity: 1;
}

.message-header:hover .delete-message-btn:not(.hidden) {
  display: inline-block;
}

.confirm-delete-modal {
  z-index: 1100;
}