/* ============================================
   BotFlow WhatsApp Manager Dashboard
   Modern Corporate Minimalist Design System
   ============================================ */

:root {
  --primary: #006d2f;
  --primary-container: #25d366;
  --on-primary: #ffffff;
  --on-primary-container: #005523;
  --primary-fixed: #66ff8e;
  --primary-fixed-dim: #3de273;
  --inverse-primary: #3de273;
  --on-primary-fixed: #002109;
  --on-primary-fixed-variant: #005322;

  --secondary: #006b5f;
  --secondary-container: #8cf1e1;
  --on-secondary: #ffffff;
  --on-secondary-container: #006f64;
  --secondary-fixed: #8ff4e3;
  --secondary-fixed-dim: #72d8c8;
  --on-secondary-fixed: #00201c;
  --on-secondary-fixed-variant: #005047;

  --tertiary: #00668a;
  --tertiary-container: #48c4ff;
  --on-tertiary: #ffffff;
  --on-tertiary-container: #004f6c;
  --tertiary-fixed: #c4e7ff;
  --tertiary-fixed-dim: #7cd0ff;
  --on-tertiary-fixed: #001e2c;
  --on-tertiary-fixed-variant: #004c69;

  --surface: #f7f9fc;
  --surface-dim: #d8dadd;
  --surface-bright: #f7f9fc;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f2f4f7;
  --surface-container: #eceef1;
  --surface-container-high: #e6e8eb;
  --surface-container-highest: #e0e3e6;
  --surface-variant: #e0e3e6;
  --on-surface: #191c1e;
  --on-surface-variant: #3c4a3d;
  --inverse-surface: #2d3133;
  --inverse-on-surface: #eff1f4;

  --error: #ba1a1a;
  --on-error: #ffffff;
  --error-container: #ffdad6;
  --on-error-container: #93000a;

  --outline: #6c7b6b;
  --outline-variant: #bbcbb9;
  --surface-tint: #006d2f;
  --background: #f0f2f5;

  --sidebar-width: 260px;
  --header-height: 64px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 28px rgba(0,0,0,0.12);
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--background);
  color: var(--on-surface);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ===== SIDEBAR ===== */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--surface-container-low);
  border-right: 1px solid var(--outline-variant);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 20px 20px 24px;
  border-bottom: 1px solid var(--outline-variant);
}

.sidebar-brand h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.02em;
}

.sidebar-brand p {
  font-size: 12px;
  color: var(--on-surface-variant);
  margin-top: 2px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--on-surface-variant);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item:hover {
  background: var(--surface-variant);
  color: var(--on-surface);
}

.nav-item.active {
  background: rgba(37, 211, 102, 0.12);
  color: var(--primary);
  font-weight: 600;
}

.nav-item .icon {
  font-size: 20px;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 12px 10px;
  border-top: 1px solid var(--outline-variant);
}

/* ===== MAIN LAYOUT ===== */
.main-wrapper {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

/* ===== TOP HEADER ===== */
.top-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: var(--surface);
  border-bottom: 1px solid var(--outline-variant);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  z-index: 50;
  backdrop-filter: blur(8px);
}

.top-header h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--on-surface);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--outline-variant);
  background: var(--surface);
  color: var(--on-surface);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.header-btn:hover {
  background: var(--surface-variant);
  border-color: var(--outline);
}

.header-btn.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--on-primary);
}

.header-btn.primary:hover {
  background: var(--on-primary-container);
}

/* ===== MAIN CONTENT ===== */
.main-content {
  padding: 24px 28px;
}

/* ===== STATS CARDS ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  padding: 18px;
  transition: all var(--transition);
}

.stat-card:hover {
  border-color: rgba(37, 211, 102, 0.3);
  box-shadow: var(--shadow-sm);
}

.stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--on-surface-variant);
  margin-bottom: 8px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--on-surface);
  line-height: 1.1;
}

.stat-trend {
  font-size: 12px;
  font-weight: 600;
  margin-top: 4px;
}

.stat-trend.up { color: var(--primary); }
.stat-trend.down { color: var(--error); }

/* ===== CONTENT GRID ===== */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 20px;
}

@media (max-width: 1100px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== CARDS / PANELS ===== */
.card {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--outline-variant);
}

.card-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.card-body {
  padding: 20px;
}

/* ===== QR CODE SECTION ===== */
.qr-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 10px;
}

.qr-container {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 16px auto;
  background: var(--surface-container-lowest);
  border: 2px solid var(--primary-container);
  border-radius: var(--radius-md);
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.qr-container:hover {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.1);
}

.qr-container canvas, .qr-container img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 4px;
}

.qr-placeholder {
  color: var(--on-surface-variant);
  font-size: 13px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.qr-placeholder .icon {
  font-size: 48px;
  opacity: 0.3;
}

.qr-steps {
  text-align: left;
  width: 100%;
  margin-top: 16px;
}

.qr-step {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--on-surface-variant);
}

.qr-step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== INSTANCE STATUS ===== */
.status-section {
  margin-top: 20px;
}

.status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--outline-variant);
  font-size: 13px;
}

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

.status-label {
  color: var(--on-surface-variant);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.status-badge.connected {
  background: rgba(37, 211, 102, 0.12);
  color: var(--primary);
}

.status-badge.disconnected {
  background: rgba(186, 26, 26, 0.1);
  color: var(--error);
}

.status-badge.waiting {
  background: rgba(255, 183, 77, 0.2);
  color: #e65100;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  animation: pulse 2s infinite;
}

.live-dot.active { background: var(--primary); }
.live-dot.inactive { background: var(--error); }
.live-dot.waiting { background: #ff9800; }

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(37, 211, 102, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

.action-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 16px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
  line-height: 1;
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

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

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

.btn-secondary {
  background: var(--surface);
  color: var(--on-surface);
  border: 1px solid var(--outline-variant);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--surface-variant);
  border-color: var(--outline);
}

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

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

.btn-ghost {
  background: transparent;
  color: var(--on-surface-variant);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--surface-variant);
  color: var(--on-surface);
}

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

.btn-full {
  width: 100%;
}

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

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

thead th {
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--on-surface-variant);
  background: var(--surface-container-low);
  border-bottom: 1px solid var(--outline-variant);
  text-align: left;
  white-space: nowrap;
}

tbody td {
  padding: 12px 14px;
  font-size: 13px;
  border-bottom: 1px solid var(--outline-variant);
  vertical-align: middle;
}

tbody tr {
  transition: background var(--transition);
}

tbody tr:hover {
  background: rgba(37, 211, 102, 0.03);
}

tbody tr:nth-child(even) {
  background: var(--surface-container-lowest);
}

tbody tr:nth-child(even):hover {
  background: rgba(37, 211, 102, 0.03);
}

/* ===== LOG TABLE ===== */
.log-direction {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 16px;
}

.log-direction.inbound {
  background: rgba(37, 211, 102, 0.1);
  color: var(--primary);
}

.log-direction.outbound {
  background: var(--surface-variant);
  color: var(--on-surface-variant);
}

.log-contact {
  font-weight: 500;
}

.log-message {
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--on-surface-variant);
  font-size: 12px;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}

.status-chip.read {
  background: rgba(37, 211, 102, 0.1);
  color: var(--primary);
}

.status-chip.delivered {
  background: var(--surface-variant);
  color: var(--on-surface-variant);
}

.status-chip.sent {
  background: var(--surface-variant);
  color: var(--on-surface-variant);
}

.status-chip.failed {
  background: rgba(186, 26, 26, 0.1);
  color: var(--error);
}

/* ===== TABS ===== */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  padding: 4px;
  background: var(--surface-container-low);
  border-radius: var(--radius-sm);
  border: 1px solid var(--outline-variant);
  width: fit-content;
}

.tab {
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--on-surface-variant);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.tab:hover {
  color: var(--on-surface);
}

.tab.active {
  background: var(--surface-container-lowest);
  color: var(--primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.tab-content {
  display: none;
}

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

/* ===== ACTIVITY FEED ===== */
.activity-feed {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 400px;
  overflow-y: auto;
}

.activity-item {
  padding: 12px 14px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  background: var(--surface-container-lowest);
  transition: background var(--transition);
}

.activity-item:hover {
  background: var(--surface-container-low);
}

.activity-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.activity-type {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
}

.activity-time {
  font-size: 11px;
  color: var(--on-surface-variant);
}

.activity-msg {
  font-size: 12px;
  color: var(--on-surface-variant);
  line-height: 1.4;
}

/* ===== EMPTY STATE ===== */
.empty-state {
  padding: 32px 20px;
  text-align: center;
  color: var(--on-surface-variant);
  border: 1px dashed var(--outline-variant);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

/* ===== SETTINGS PAGE ===== */
.settings-section {
  margin-bottom: 24px;
}

.settings-section h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--outline-variant);
}

.env-editor {
  width: 100%;
  min-height: 350px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  font-size: 12px;
  line-height: 1.6;
  padding: 14px;
  background: var(--surface-container-lowest);
  color: var(--on-surface);
  resize: vertical;
}

.env-editor:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37, 211, 102, 0.15);
}

.save-status {
  margin-top: 8px;
  font-size: 12px;
  color: var(--on-surface-variant);
}

.save-status.success { color: var(--primary); }
.save-status.error { color: var(--error); }

/* ===== STALLED LEADS ===== */
.status-strip {
  padding: 10px 14px;
  background: var(--surface-container-low);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--on-surface-variant);
  margin-bottom: 12px;
  border: 1px solid var(--outline-variant);
}

/* ===== BULK SENDER ===== */
.bulk-inputs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bulk-inputs textarea {
  width: 100%;
  min-height: 100px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-size: 12px;
  font-family: inherit;
  resize: vertical;
  background: var(--surface-container-lowest);
  color: var(--on-surface);
}

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

.bulk-controls {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.bulk-controls input[type="text"],
.bulk-controls input[type="number"] {
  padding: 8px 12px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  font-size: 13px;
  background: var(--surface-container-lowest);
  color: var(--on-surface);
}

.bulk-controls input:focus {
  outline: none;
  border-color: var(--primary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--outline-variant);
  }

  .sidebar-nav {
    flex-direction: row;
    overflow-x: auto;
    padding: 8px;
  }

  .nav-item {
    white-space: nowrap;
    width: auto;
  }

  .sidebar-footer {
    display: none;
  }

  .main-wrapper {
    margin-left: 0;
  }

  .top-header {
    padding: 0 16px;
  }

  .main-content {
    padding: 16px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .stat-value {
    font-size: 22px;
  }

  .header-actions .header-btn span {
    display: none;
  }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--outline-variant);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--outline);
}

/* ===== POSTING PAGE ===== */
.job-status {
  display: inline-flex;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}

.job-status.queued, .job-status.scheduled {
  background: #dbeafe;
  color: #1d4ed8;
}

.job-status.active, .job-status.retrying {
  background: #fef3c7;
  color: #92400e;
}

.job-status.completed, .job-status.published {
  background: #dcfce7;
  color: #166534;
}

.job-status.failed {
  background: #fee2e2;
  color: #991b1b;
}

.badge {
  display: inline-flex;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}

.badge-neutral { background: var(--surface-variant); color: var(--on-surface-variant); }
.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-error { background: #fee2e2; color: #991b1b; }