/* WNA WhatsApp Dashboard — Dark Theme */
:root {
  --bg-primary: #111b21;
  --bg-secondary: #1f2c33;
  --bg-tertiary: #2a3942;
  --bg-input: #2a3942;
  --bg-hover: #374248;
  --bg-active: #0b141a;
  --text-primary: #e9edef;
  --text-secondary: #8696a0;
  --text-muted: #667781;
  --accent: #00a884;
  --accent-hover: #06cf9c;
  --accent-dark: #025144;
  --danger: #ea4335;
  --danger-hover: #ff6b5e;
  --warning: #f59e0b;
  --border: #313d45;
  --shadow: rgba(0,0,0,0.3);
  --radius: 8px;
  --radius-lg: 12px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--bg-tertiary); border-radius: 3px; }

/* Layout */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-header .logo {
  width: 40px;
  height: 40px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.sidebar-header .brand {
  font-size: 16px;
  font-weight: 600;
}

.sidebar-header .brand small {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 400;
}

.sidebar-nav {
  flex: 1;
  padding: 8px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.15s;
  font-size: 14px;
  user-select: none;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--accent-dark);
  color: var(--accent);
}

.nav-item .icon {
  width: 20px;
  text-align: center;
  font-size: 16px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
}

.sidebar-footer .device-info {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.sidebar-footer .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sidebar-footer .status-dot.connected { background: var(--accent); }
.sidebar-footer .status-dot.disconnected { background: var(--danger); }

/* Main */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.page-header {
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.page-header h1 {
  font-size: 20px;
  font-weight: 600;
}

.page-header p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.page-body {
  flex: 1;
  padding: 24px 32px;
  overflow-y: auto;
}

/* Cards */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

/* Forms */
label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="tel"],
textarea,
select {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
  font-family: inherit;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

.form-group {
  margin-bottom: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-hover);
}

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

.btn-danger:hover:not(:disabled) {
  background: var(--danger-hover);
}

.btn-warning {
  background: var(--warning);
  color: #000;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Tables */
.table-wrap {
  overflow-x: auto;
}

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

th, td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

th {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td {
  color: var(--text-primary);
}

tr:hover td {
  background: var(--bg-hover);
}

/* Status badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.badge-success {
  background: rgba(0,168,132,0.15);
  color: var(--accent);
}

.badge-danger {
  background: rgba(234,67,53,0.15);
  color: var(--danger);
}

.badge-warning {
  background: rgba(245,158,11,0.15);
  color: var(--warning);
}

.badge-muted {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

/* Progress bar */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
  margin: 12px 0;
}

.progress-bar .fill {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
  transition: width 0.3s;
}

.progress-text {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* QR Code */
.qr-container {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: #fff;
  border-radius: var(--radius-lg);
  width: fit-content;
  margin: 16px auto;
}

.qr-container img {
  max-width: 280px;
}

/* Toast */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  animation: toastIn 0.3s ease;
  max-width: 400px;
  box-shadow: 0 4px 12px var(--shadow);
}

.toast-success {
  background: var(--accent);
  color: #fff;
}

.toast-error {
  background: var(--danger);
  color: #fff;
}

.toast-info {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

@keyframes toastIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Login overlay */
.login-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.login-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-box .logo-lg {
  width: 64px;
  height: 64px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin: 0 auto 20px;
}

.login-box h2 {
  margin-bottom: 8px;
}

.login-box p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

.login-box .form-group {
  text-align: left;
}

.login-box .btn {
  width: 100%;
  margin-top: 8px;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-secondary);
}

.empty-state .icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h3 {
  color: var(--text-primary);
  margin-bottom: 8px;
}

/* Coming soon */
.coming-soon {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  text-align: center;
}

.coming-soon .icon {
  font-size: 64px;
  margin-bottom: 24px;
  opacity: 0.6;
}

.coming-soon h2 {
  margin-bottom: 8px;
}

.coming-soon p {
  color: var(--text-secondary);
  max-width: 400px;
}

/* Number preview chips */
.number-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0;
  max-height: 200px;
  overflow-y: auto;
  padding: 4px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--bg-tertiary);
  border-radius: 16px;
  font-size: 12px;
  color: var(--text-primary);
  font-family: 'Courier New', monospace;
}

.chip.invalid {
  background: rgba(234,67,53,0.15);
  color: var(--danger);
  text-decoration: line-through;
}

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}

.stat-card .value {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-card .label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Chatbot rules */
.rule-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  margin-bottom: 8px;
}

.rule-item .keyword {
  font-weight: 600;
  color: var(--accent);
  min-width: 120px;
}

.rule-item .reply {
  flex: 1;
  color: var(--text-secondary);
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rule-item .actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* File input */
.file-input-wrap {
  position: relative;
}

.file-input-wrap input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.file-input-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.file-input-label:hover {
  border-color: var(--accent);
}

.file-preview {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .sidebar-nav {
    display: flex;
    overflow-x: auto;
    padding: 8px;
    gap: 4px;
  }
  .nav-item {
    flex-shrink: 0;
    padding: 8px 14px;
    font-size: 13px;
  }
  .nav-item .label { display: none; }
  .nav-item .icon { font-size: 18px; }
  .sidebar-footer { display: none; }
  .page-body { padding: 16px; }
  .page-header { padding: 16px; }
  .form-row { grid-template-columns: 1fr; }
}

/* Blasting results */
.blast-results {
  max-height: 300px;
  overflow-y: auto;
}

.blast-results td.status-sent { color: var(--accent); }
.blast-results td.status-failed { color: var(--danger); }
.blast-results td.status-pending { color: var(--text-muted); }

/* Spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--bg-tertiary);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 100%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
}

.modal h3 {
  margin-bottom: 16px;
}