/* ==================== CSS VARIABLES ==================== */
:root {
  --bg: radial-gradient(circle at 20% 20%, #e3f2fd, #f8fbff 35%),
    radial-gradient(circle at 80% 0, #e8eaf6, #f8fbff 45%), #f5f7fb;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #6b7785;
  --primary: #0d6efd;
  --primary-dark: #0b5ed7;
  --border: #e3e8ef;
  --shadow: 0 15px 45px rgba(0, 0, 0, 0.08);
}

/* ==================== GLOBAL STYLES ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Poppins", Arial,
    sans-serif;
  background-color: #f5f5f5;
  color: #333;
  padding: 20px;
}

body.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--bg);
  color: var(--text);
}

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

a:hover {
  opacity: 0.8;
}

/* ==================== LAYOUT COMPONENTS ==================== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}

/* ==================== HEADER & NAVIGATION ==================== */
.header {
  background: white;
  padding: 20px;
  margin-bottom: 20px;
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header h1 {
  font-size: 24px;
  color: #333;
  margin: 0;
}

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

.header-info {
  display: flex;
  align-items: center;
}

.header-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #007bff;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  margin-right: 12px;
}

.header-name {
  font-size: 18px;
  font-weight: 600;
}

.header-status {
  font-size: 12px;
  color: #666;
  margin-top: 2px;
}

/* ==================== BUTTONS ==================== */
.btn {
  padding: 8px 16px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 14px;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.btn:hover {
  opacity: 0.9;
}

.btn-primary {
  background: #007bff;
  color: white;
}

.btn-secondary {
  background: #6c757d;
  color: white;
}

.btn-success {
  background: #28a745;
  color: white;
}

.btn-danger {
  background: #dc3545;
  color: white;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.back-btn {
  padding: 8px 16px;
  background: #f8f9fa;
  border: 1px solid #ddd;
  border-radius: 4px;
  text-decoration: none;
  color: #333;
  font-size: 14px;
}

.back-btn:hover {
  background: #e9ecef;
}

.button {
  width: 100%;
  padding: 12px;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.2s ease;
  box-shadow: 0 10px 25px rgba(13, 110, 253, 0.25);
}

.button:active {
  transform: translateY(1px);
  box-shadow: 0 6px 18px rgba(13, 110, 253, 0.3);
}

/* ==================== FORMS ==================== */
.field {
  margin-bottom: 14px;
}

.label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
}

.input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.12);
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 500;
  font-size: 14px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
}

.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.forgot-password {
  text-align: right;
  margin-top: -10px;
  margin-bottom: 10px;
  font-size: 13px;
}

/* ==================== ALERTS & MESSAGES ==================== */
.error {
  background: #ffe7e7;
  color: #b00020;
  border: 1px solid #ffc2c2;
  padding: 10px 12px;
  border-radius: 10px;
  margin: 0 0 14px 0;
  font-size: 13px;
}

.alert {
  padding: 15px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.alert-success {
  background: #d4edda;
  color: #155724;
  border-left: 4px solid #28a745;
}

.alert-danger {
  background: #f8d7da;
  color: #721c24;
  border-left: 4px solid #dc3545;
}

.success {
  background: #e6ffed;
  color: #027a48;
  border: 1px solid #b1f2c2;
  padding: 10px 12px;
  border-radius: 10px;
  margin: 0 0 14px 0;
  font-size: 13px;
}

.hint {
  margin-top: 12px;
  font-size: 12px;
  color: var(--muted);
}

/* ==================== CARDS ==================== */
.card {
  background: white;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.card.auth {
  width: 360px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 6px 0;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-body {
  max-height: 300px;
  overflow-y: auto;
}

.subtitle {
  margin: 0 0 18px 0;
  color: var(--muted);
  font-size: 14px;
}

/* ==================== STATS GRID ==================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-bottom: 20px;
}

.stat-card {
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border-left: 4px solid #007bff;
}

.stat-card.success {
  border-left-color: #28a745;
}

.stat-card.warning {
  border-left-color: #ffc107;
}

.stat-card.danger {
  border-left-color: #dc3545;
}

.stat-card.info {
  border-left-color: #17a2b8;
}

.stat-number {
  font-size: 32px;
  font-weight: 600;
  color: #333;
  margin-bottom: 5px;
}

.stat-label {
  font-size: 13px;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==================== WELCOME SECTION ==================== */
.welcome {
  background: white;
  padding: 30px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.welcome h2 {
  font-size: 28px;
  margin-bottom: 8px;
}

.welcome p {
  color: #666;
  font-size: 16px;
  margin: 0;
}

.welcome-actions {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

/* ==================== LIST ITEMS ==================== */
.list-item {
  padding: 10px 0;
  border-bottom: 1px solid #f5f5f5;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.list-item:last-child {
  border-bottom: none;
}

.item-info {
  flex: 1;
}

.item-title {
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 3px;
}

.item-meta {
  font-size: 12px;
  color: #666;
}

.item-badge {
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

/* ==================== BADGES ==================== */
.badge {
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-success {
  background: #d4edda;
  color: #155724;
}

.badge-warning {
  background: #fff3cd;
  color: #856404;
}

.badge-danger {
  background: #f8d7da;
  color: #721c24;
}

.badge-info {
  background: #d1ecf1;
  color: #0c5460;
}

.badge-primary {
  background: #cfe2ff;
  color: #084298;
}

.badge-secondary {
  background: #e2e3e5;
  color: #383d41;
}

.unread-badge {
  display: inline-block;
  background: #dc3545;
  color: white;
  border-radius: 50%;
  padding: 4px;
  font-size: 12px;
  font-weight: 600;
  min-width: 24px;
  height: 24px;
  line-height: 16px;
  text-align: center;
}

.status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.status-active {
  background-color: #d4edda;
  color: #155724;
}

.status-inactive {
  background-color: #f8d7da;
  color: #721c24;
}

.status-pending {
  background-color: #fff3cd;
  color: #856404;
}

/* ==================== MESSAGE PREVIEW ==================== */
.message-preview {
  font-size: 13px;
  color: #666;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 300px;
}

.message-item {
  padding: 12px 0;
  border-bottom: 1px solid #f0f0f0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.message-item:last-child {
  border-bottom: none;
}

.message-sender {
  font-weight: 600;
  color: #333;
  font-size: 14px;
  margin-bottom: 4px;
}

.message-text {
  color: #666;
  font-size: 13px;
  margin-bottom: 4px;
  line-height: 1.4;
}

.message-unread {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #007bff;
  margin-left: 10px;
  margin-top: 2px;
}

.empty-message {
  text-align: center;
  padding: 20px;
  color: #999;
  font-size: 14px;
}

.message-link-btn {
  text-align: center;
  padding-top: 15px;
  border-top: 1px solid #eee;
  margin-top: 15px;
}

.alert-info-row {
  background: #f0f7ff;
  padding: 12px;
  margin: 12px -25px -25px -25px;
  border-radius: 0 0 8px 8px;
  border-top: 1px solid #e0e0e0;
  display: flex;
  justify-content: space-between;
}

.text-primary {
  color: #007bff;
  font-weight: 600;
}

.text-success {
  color: #28a745;
  font-weight: 600;
}

.text-danger {
  color: #dc3545;
  font-weight: 600;
}

/* ==================== DASHBOARD SPECIFIC ==================== */
.info-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid #f5f5f5;
}

.info-row:last-child {
  border-bottom: none;
}

.info-label {
  color: #666;
  font-size: 14px;
}

.info-value {
  color: #333;
  font-weight: 500;
  font-size: 14px;
}

.stats {
  background: #f8f9fa;
  padding: 15px;
  border-radius: 4px;
  text-align: center;
  margin-top: 15px;
}

.stats-number {
  font-size: 32px;
  font-weight: 600;
  color: #007bff;
}

.stats-label {
  font-size: 12px;
  color: #666;
  margin-top: 4px;
}

/* ==================== TABLE ==================== */
.table-container {
  background: white;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

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

th {
  background: #f8f9fa;
  padding: 15px;
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  color: #666;
  border-bottom: 2px solid #e0e0e0;
}

td {
  padding: 15px;
  border-bottom: 1px solid #f0f0f0;
}

tr:hover {
  background: #f8f9fa;
}

/* ==================== FILTERS ==================== */
.filters {
  background: white;
  padding: 20px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.filter-group {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-group input,
.filter-group select {
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
}

.filter-group input[type="text"] {
  flex: 1;
  min-width: 200px;
}

/* ==================== MODAL ==================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: white;
  padding: 30px;
  border-radius: 8px;
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
}

/* ==================== CHAT STYLES ==================== */
.chat-container {
  display: flex;
  height: 100vh;
}

.sidebar {
  width: 320px;
  background: white;
  border-right: 1px solid #e0e0e0;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid #e0e0e0;
  background: #007bff;
  color: white;
}

.sidebar-header h2 {
  font-size: 20px;
  margin-bottom: 5px;
  margin: 0 0 5px 0;
}

.sidebar-header p {
  font-size: 13px;
  opacity: 0.9;
  margin: 0;
}

.search-box {
  padding: 15px;
  border-bottom: 1px solid #e0e0e0;
}

.search-box input {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
}

.user-list {
  flex: 1;
  overflow-y: auto;
}

.user-item {
  padding: 15px 20px;
  border-bottom: 1px solid #f0f0f0;
  cursor: pointer;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  text-decoration: none;
  color: #333;
}

.user-item:hover {
  background: #f8f9fa;
}

.user-item.active {
  background: #e3f2fd;
  border-left: 3px solid #007bff;
}

.user-avatar {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: #007bff;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 18px;
  margin-right: 12px;
  flex-shrink: 0;
}

.user-info {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-weight: 500;
  font-size: 15px;
  margin-bottom: 3px;
}

.user-preview {
  font-size: 13px;
  color: #666;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.last-message-time {
  font-size: 11px;
  color: #999;
}

.message-count {
  font-size: 11px;
  color: #007bff;
  font-weight: 500;
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  margin-left: 10px;
}

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

.chat-header {
  padding: 20px;
  border-bottom: 1px solid #e0e0e0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: white;
}

.chat-header-info {
  display: flex;
  align-items: center;
}

.chat-header-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #007bff;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  margin-right: 12px;
}

.chat-header-name {
  font-size: 18px;
  font-weight: 600;
}

.chat-header-status {
  font-size: 12px;
  color: #666;
  margin-top: 2px;
}

.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  background: #f8f9fa;
}

.message {
  margin-bottom: 15px;
  display: flex;
  flex-direction: column;
}

.message.sent {
  align-items: flex-end;
}

.message.received {
  align-items: flex-start;
}

.message-content {
  max-width: 60%;
  padding: 10px 15px;
  border-radius: 10px;
  word-wrap: break-word;
}

.message.sent .message-content {
  background: #007bff;
  color: white;
  border-bottom-right-radius: 2px;
}

.message.received .message-content {
  background: white;
  color: #333;
  border-bottom-left-radius: 2px;
  border: 1px solid #e0e0e0;
}

.message-time {
  font-size: 11px;
  color: #999;
  margin-top: 4px;
  padding: 0 5px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.read-status {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  margin-left: 3px;
}

.read-status.sent {
  color: #999;
}

.read-status.read {
  color: #4fc3f7;
}

.message.sent .message-time {
  justify-content: flex-end;
}

.message-input-area {
  padding: 15px 20px;
  border-top: 1px solid #e0e0e0;
  background: white;
}

.message-input-form {
  display: flex;
  gap: 10px;
}

.message-input-form input {
  flex: 1;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 25px;
  font-size: 14px;
}

.message-input-form button {
  padding: 12px 25px;
  background: #007bff;
  color: white;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
}

.message-input-form button:hover {
  background: #0056b3;
}

.message-input-form button:disabled {
  background: #ccc;
  cursor: not-allowed;
}

.typing-indicator {
  display: none;
  padding: 10px;
  color: #999;
  font-size: 13px;
  font-style: italic;
}

/* ==================== EMPTY STATES ==================== */
.empty-state {
  text-align: center;
  padding: 30px;
  color: #999;
}

.empty-state-icon {
  font-size: 60px;
  margin-bottom: 20px;
}

.empty-state h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: #666;
}

.empty-state p {
  font-size: 14px;
}

/* ==================== SCROLLBARS ==================== */
.card-body::-webkit-scrollbar,
.messages-container::-webkit-scrollbar,
.user-list::-webkit-scrollbar {
  width: 6px;
}

.card-body::-webkit-scrollbar-track,
.messages-container::-webkit-scrollbar-track,
.user-list::-webkit-scrollbar-track {
  background: #f1f1f1;
}

.card-body::-webkit-scrollbar-thumb,
.messages-container::-webkit-scrollbar-thumb,
.user-list::-webkit-scrollbar-thumb {
  background: #ccc;
  border-radius: 3px;
}

.card-body::-webkit-scrollbar-thumb:hover,
.messages-container::-webkit-scrollbar-thumb:hover,
.user-list::-webkit-scrollbar-thumb:hover {
  background: #999;
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 768px) {
  body {
    padding: 10px;
  }

  .container {
    padding: 0;
  }

  .header {
    flex-direction: column;
    gap: 15px;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .filter-group {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-group input[type="text"] {
    min-width: 100%;
  }

  table {
    font-size: 12px;
  }

  th,
  td {
    padding: 10px 8px;
  }

  .sidebar {
    width: 100%;
    position: absolute;
    z-index: 10;
    display: none;
  }

  .sidebar.show {
    display: flex;
  }

  .chat-area {
    width: 100%;
  }

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