:root {
  --bg-primary: #0c1317;
  --bg-card: #111b21;
  --bg-input: #202c33;
  --bg-hover: #182229;
  --text-primary: #e9edef;
  --text-secondary: #8696a0;
  --primary: #00a884;
  --primary-hover: #008f6f;
  --border-color: #222e35;
  --color-success: #25d366;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-info: #3b82f6;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 16px 64px;
}

.container {
  width: 100%;
  max-width: 760px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 32px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

header {
  text-align: center;
  margin-bottom: 20px;
}

h1 {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.status-wrapper {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.status-badge::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-STARTING,
.status-AUTHENTICATING {
  background: rgba(245, 158, 11, 0.12);
  color: var(--color-warning);
  border: 1px solid var(--color-warning);
}
.status-STARTING::before,
.status-AUTHENTICATING::before {
  background: var(--color-warning);
}

.status-WAITING_FOR_QR {
  background: rgba(0, 168, 132, 0.12);
  color: var(--primary);
  border: 1px solid var(--primary);
}
.status-WAITING_FOR_QR::before {
  background: var(--primary);
}

.status-AUTHENTICATED {
  background: rgba(37, 211, 102, 0.12);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}
.status-AUTHENTICATED::before {
  background: var(--color-success);
}

.status-DISCONNECTED,
.status-ERROR {
  background: rgba(239, 68, 68, 0.12);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}
.status-DISCONNECTED::before,
.status-ERROR::before {
  background: var(--color-danger);
}

.status-NO_INSTANCE {
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.status-NO_INSTANCE::before {
  background: var(--text-secondary);
}

.lang-badge {
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  background: #202c33;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  text-transform: uppercase;
}

/* Tabs Navigation */
.tabs-nav {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
  gap: 8px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 18px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

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

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

.tab-content {
  display: none;
}

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

.panel {
  display: none;
}

.panel.active {
  display: block;
}

/* Loading panel */
.loading-box {
  text-align: center;
  padding: 36px 0;
  color: var(--text-secondary);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

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

/* QR Code panel */
.qr-container {
  text-align: center;
}

.qr-card {
  background: #ffffff;
  padding: 16px;
  border-radius: 12px;
  display: inline-block;
  margin: 18px 0;
}

.qr-card img {
  max-width: 250px;
  height: auto;
  display: block;
}

.hint {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Form Styles */
.form-group {
  margin-bottom: 18px;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

input,
textarea,
select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color 0.2s, background 0.2s;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  background: #2a3942;
}

.btn-row {
  display: flex;
  gap: 12px;
}

button.primary-btn {
  background: var(--primary);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 13px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: background 0.2s, opacity 0.2s;
}

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

button.secondary-btn {
  background: #202c33;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 13px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s;
}

button.secondary-btn:hover {
  background: #2a3942;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Card Boxes */
.card-box {
  background: #182229;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 24px;
}

.card-box h3 {
  font-size: 1.05rem;
  margin-bottom: 14px;
  color: var(--text-primary);
}

/* Toggle Switch */
.toggle-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #3b4a54;
  transition: 0.3s;
  border-radius: 26px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary);
}

input:checked + .slider:before {
  transform: translateX(22px);
}

/* Alerts */
.alert-box {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  display: none;
}

.alert-box.success {
  display: block;
  background: rgba(37, 211, 102, 0.12);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.alert-box.error {
  display: block;
  background: rgba(239, 68, 68, 0.12);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

/* Message List */
.messages-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 14px;
}

.message-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px 16px;
}

.message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.message-sender {
  font-weight: 600;
  color: var(--primary);
  font-size: 0.95rem;
}

.message-time {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.message-body {
  font-size: 0.95rem;
  line-height: 1.4;
  word-break: break-word;
}

.message-footer {
  margin-top: 10px;
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.message-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.action-btn {
  background: #202c33;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.2s ease;
}

.action-btn:hover {
  background: #2a3942;
  border-color: #3b4a54;
}

.action-btn.reply-btn {
  color: var(--primary);
  border-color: rgba(37, 211, 102, 0.3);
}

.action-btn.reply-btn:hover {
  background: rgba(37, 211, 102, 0.12);
  border-color: var(--primary);
}

.action-btn.read-btn {
  color: var(--text-secondary);
}

.action-btn.read-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

/* Quick reply drawer inside message */
.inline-reply-box {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--border-color);
  display: none;
}

.inline-reply-box.open {
  display: block;
}

.inline-reply-textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px 10px;
  color: var(--text-primary);
  font-size: 0.88rem;
  resize: vertical;
  min-height: 54px;
  margin-bottom: 8px;
}

.inline-reply-textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.inline-reply-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  align-items: center;
}

.inline-reply-actions button {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
}

.reply-send-btn {
  background: var(--primary);
  color: white;
  border: none;
}

.reply-send-btn:hover {
  background: var(--primary-hover);
}

.reply-cancel-btn {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.reply-cancel-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.message-item {
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.message-item.dismissing {
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
}

.badge-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-delivered {
  background: rgba(37, 211, 102, 0.15);
  color: var(--color-success);
}
.badge-failed {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-danger);
}
.badge-disabled {
  background: #202c33;
  color: var(--text-secondary);
}

.empty-state {
  text-align: center;
  padding: 24px 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Documentation Styles */
.doc-section {
  margin-bottom: 24px;
}

.doc-section h3 {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.doc-endpoint {
  background: #182229;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 12px;
}

.endpoint-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.method-tag {
  font-weight: 700;
  font-size: 0.8rem;
  padding: 3px 8px;
  border-radius: 4px;
}

.method-post {
  background: #2563eb;
  color: white;
}
.method-get {
  background: #059669;
  color: white;
}

.endpoint-path {
  font-family: monospace;
  font-size: 0.95rem;
  color: var(--text-primary);
}

pre {
  background: #0c1317;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px;
  font-family: monospace;
  font-size: 0.85rem;
  color: #38bdf8;
  overflow-x: auto;
  margin-top: 8px;
}

/* Footer Links */
footer {
  margin-top: 28px;
  display: flex;
  justify-content: center;
  gap: 16px;
}

.action-link {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: opacity 0.2s;
}

.action-link:hover {
  text-decoration: underline;
  opacity: 0.85;
}

/* Media Attachment Styles */
.message-media-wrapper {
  margin: 10px 0;
  display: inline-block;
  max-width: 100%;
}

.message-media-img {
  max-width: 240px;
  max-height: 240px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  object-fit: cover;
  cursor: pointer;
  display: block;
  transition: transform 0.2s, opacity 0.2s;
}

.message-media-img:hover {
  transform: scale(1.02);
  opacity: 0.95;
}

/* Lightbox Modal */
.img-lightbox-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.img-lightbox-modal.active {
  display: flex;
}

.img-lightbox-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(4px);
}

.img-lightbox-content {
  position: relative;
  z-index: 10000;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.img-lightbox-content img {
  max-width: 100%;
  max-height: 85vh;
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
  border: 1px solid var(--border-color);
}

.img-lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: transparent;
  border: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
  padding: 4px 8px;
}

.img-lightbox-close:hover {
  color: var(--primary);
}

/* Reply Quote Styling */
.message-quote-box {
  background: rgba(255, 255, 255, 0.04);
  border-left: 3px solid var(--primary);
  border-radius: 4px;
  padding: 6px 10px;
  margin-bottom: 8px;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.quote-sender {
  font-weight: 600;
  color: var(--primary);
  font-size: 0.8rem;
}

.quote-text {
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Reaction Pill Styling */
.message-reaction-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 16px;
  padding: 3px 10px;
  margin-bottom: 8px;
  font-size: 0.85rem;
}

.reaction-emoji {
  font-size: 1.1rem;
}

.reaction-target {
  color: var(--text-secondary);
  font-size: 0.8rem;
  max-width: 250px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.message-reaction-item {
  border-left: 3px solid var(--color-warning);
}

/* Sticker Styling */
.sticker-wrapper {
  background: transparent;
}

.sticker-img {
  max-width: 140px;
  max-height: 140px;
  border: none;
  background: transparent;
  object-fit: contain;
}

/* Document Box Styling */
.message-document-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 14px;
  margin: 10px 0;
}

.document-icon {
  font-size: 1.6rem;
}

.document-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.document-name {
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}

.document-type {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.document-download-btn {
  background: var(--bg-input);
  color: var(--primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.8rem;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s;
}

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

/* Modal Overlay & Card */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
  text-align: center;
}

.role-badge {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--primary);
  border: 1px solid var(--primary);
  margin-left: 6px;
  font-weight: 700;
}

/* Session Selector Toolbar */
.session-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px 18px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.session-selector-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.session-selector-group select {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.9rem;
}

/* Checkbox Grid */
.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 6px;
}

.checkbox-grid label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox-grid input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
}

/* Tables & Lists */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

.tag-badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-primary);
  margin: 2px;
}

.token-code {
  font-family: monospace;
  background: rgba(0, 0, 0, 0.4);
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: #38bdf8;
  user-select: all;
}

.instance-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 10px;
}

.instance-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.instance-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
}