:root {
  --sms-blue: #2563eb;
  --sms-blue-light: #dbeafe;
  --sms-bubble-sent: #2563eb;
  --sms-bubble-received: #f3f4f6;
  --sms-text-sent: #ffffff;
  --sms-text-received: #111827;
  --sms-border: #e5e7eb;
  --sms-active-thread: #eff6ff;
}

.sms-panel {
  padding-bottom: 0;
}

.sms-desk {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 0;
  min-height: 860px;
  margin: 0 -18px -18px;
}

.sms-left-col {
  border-right: 1px solid var(--sms-border);
  overflow-y: auto;
  background: linear-gradient(180deg, rgba(219, 234, 254, 0.3), rgba(255, 255, 255, 0));
}

.sms-right-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: linear-gradient(180deg, rgba(46, 125, 71, 0.03), rgba(255, 255, 255, 0));
}

.sms-card,
.sms-composer-panel,
.sms-sequences-panel {
  min-width: 0;
}

.sms-card {
  padding: 16px;
  border-bottom: 1px solid var(--sms-border);
}

.sms-card h4,
.sms-recent-panel h4 {
  margin: 0 0 12px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #6b7280;
}

.sms-card-head,
.sms-card-actions,
.sms-composer-row,
.sms-conversation-head,
.sms-thread-row,
.sms-thread-head,
.sms-recent-head,
.sms-sequence-footer,
.sms-limit-copy {
  display: flex;
  align-items: center;
}

.sms-card-head,
.sms-card-actions,
.sms-conversation-head,
.sms-thread-head,
.sms-recent-head,
.sms-sequence-footer {
  justify-content: space-between;
  gap: 12px;
}

.sms-line-number {
  display: block;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--forest);
}

.sms-line-meta {
  display: grid;
  gap: 4px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.sms-line-status {
  display: inline-flex;
  align-items: center;
}

.sms-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  display: inline-block;
  margin-right: 6px;
}

.sms-card-actions {
  margin-top: 16px;
  flex-wrap: wrap;
}

.sms-bulk-btn {
  background: var(--sms-blue);
}

.sms-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.sms-stat-grid article {
  padding: 12px;
  border: 1px solid var(--sms-border);
  border-radius: 12px;
  background: #fff;
}

.sms-stat-grid span,
.sms-stat-grid strong,
.sms-limit-copy span,
.sms-limit-copy strong,
.sms-thread-copy span,
.sms-thread-copy strong,
.sms-thread-copy small,
.sms-recent-row span,
.sms-recent-row strong,
.sms-sequence-table th,
.sms-sequence-table td {
  display: block;
}

.sms-stat-grid span,
.sms-limit-copy span {
  color: #6b7280;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sms-stat-grid strong {
  margin-top: 6px;
  font-size: 1.35rem;
}

.sms-limit-block {
  margin-top: 16px;
}

.sms-limit-copy {
  justify-content: space-between;
  gap: 10px;
}

.sms-limit-copy strong {
  font-size: 0.82rem;
  color: var(--ink);
}

.sms-limit-track {
  margin-top: 10px;
}

.sms-thread-card {
  display: flex;
  flex-direction: column;
  min-height: 420px;
}

.sms-thread-list {
  display: grid;
  gap: 8px;
  overflow-y: auto;
}

.thread-item {
  padding: 12px 16px;
  cursor: pointer;
  border: 1px solid transparent;
  border-left: 3px solid transparent;
  border-radius: 12px;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.thread-item:hover {
  background: var(--sms-active-thread);
  transform: translateY(-1px);
}

.thread-item.active {
  background: var(--sms-active-thread);
  border-color: rgba(37, 99, 235, 0.16);
  border-left-color: var(--sms-blue);
}

.sms-thread-row {
  align-items: flex-start;
  gap: 12px;
}

.thread-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sms-blue), #1d4ed8);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.sms-thread-copy {
  min-width: 0;
  flex: 1;
}

.sms-thread-copy strong,
.sms-thread-time {
  font-size: 0.9rem;
}

.sms-thread-copy span,
.sms-thread-copy small {
  margin-top: 3px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sms-thread-time {
  color: var(--muted);
  white-space: nowrap;
  font-weight: 700;
}

.sms-composer-panel {
  display: flex;
  flex-direction: column;
  min-height: 560px;
}

.sms-conversation-head {
  padding: 18px 20px;
  border-bottom: 1px solid var(--sms-border);
}

.sms-conversation-head strong {
  display: block;
  font-size: 1rem;
}

.sms-conversation-head span {
  color: var(--muted);
  font-size: 0.86rem;
}

.bubble-history {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background:
    radial-gradient(circle at top right, rgba(219, 234, 254, 0.55), transparent 28%),
    linear-gradient(180deg, rgba(249, 250, 251, 0.95), #ffffff 28%);
}

.bubble {
  max-width: 70%;
  padding: 10px 14px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.4;
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.06);
}

.bubble.sent {
  background: var(--sms-bubble-sent);
  color: var(--sms-text-sent);
  border-bottom-right-radius: 4px;
  align-self: flex-end;
}

.bubble.received {
  background: var(--sms-bubble-received);
  color: var(--sms-text-received);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
}

.bubble time {
  display: block;
  margin-top: 6px;
  font-size: 0.7rem;
  opacity: 0.8;
}

.sms-empty-state {
  display: grid;
  place-items: center;
  min-height: 260px;
  text-align: center;
  color: var(--muted);
}

.sms-empty-state strong {
  color: var(--ink);
  font-size: 1rem;
}

.sms-empty-state p {
  max-width: 360px;
  margin: 8px auto 0;
}

.sms-composer {
  padding: 16px 20px;
  border-top: 1px solid var(--sms-border);
  background: #fff;
}

.sms-composer-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #6b7280;
}

.sms-textarea {
  width: 100%;
  resize: none;
  border: 1px solid var(--sms-border);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
}

.sms-textarea:focus {
  border-color: var(--sms-blue);
  box-shadow: 0 0 0 3px var(--sms-blue-light);
}

.sms-composer-row {
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
}

.sms-char-count {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.sms-send-btn {
  background: var(--sms-blue);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 8px 20px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.sms-send-btn:hover:not(:disabled) {
  transform: translateY(-1px);
}

.sms-send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.sms-recent-panel {
  padding: 0 20px 20px;
}

.sms-recent-list {
  display: grid;
  gap: 10px;
}

.sms-recent-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--sms-border);
  border-radius: 12px;
  background: #fbfcff;
}

.sms-recent-row span {
  color: var(--muted);
  font-size: 0.74rem;
}

.sms-recent-row strong {
  margin-top: 3px;
  font-size: 0.88rem;
}

.sms-recent-row p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

.sms-sequences-panel {
  border-top: 1px solid var(--sms-border);
  padding: 20px;
}

.sms-sequence-head {
  margin-bottom: 12px;
}

.sms-sequence-table-wrap {
  overflow-x: auto;
}

.sms-sequence-table {
  width: 100%;
  border-collapse: collapse;
}

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

.sms-sequence-table th {
  color: #6b7280;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.sms-sequence-table td {
  font-size: 0.86rem;
}

.sms-sequence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sms-sequence-footer {
  justify-content: flex-end;
  margin-top: 16px;
}

.sms-pill-active {
  background: #dcfce7;
  color: #166534;
}

.sms-pill-paused {
  background: #fef3c7;
  color: #92400e;
}

.sms-pill-draft {
  background: #e5e7eb;
  color: #374151;
}

.bulk-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.58);
  display: flex;
  align-items: stretch;
  justify-content: center;
  z-index: 1000;
  padding: 22px;
}

.bulk-modal {
  background: white;
  border-radius: 20px;
  width: min(1100px, 100%);
  min-height: 0;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.bulk-modal-header,
.bulk-modal-actions,
.bulk-summary-row,
.bulk-field-buttons,
.bulk-upload-actions,
.bulk-send-actions {
  display: flex;
  align-items: center;
}

.bulk-modal-header,
.bulk-modal-actions,
.bulk-summary-row,
.bulk-send-actions {
  justify-content: space-between;
  gap: 12px;
}

.bulk-modal-header {
  padding: 22px 24px 18px;
  border-bottom: 1px solid var(--sms-border);
}

.bulk-modal-header p {
  margin: 6px 0 0;
  color: var(--muted);
}

.bulk-tabs {
  display: flex;
  border-bottom: 1px solid var(--sms-border);
  padding: 0 24px;
}

.bulk-tab {
  padding: 14px 20px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  color: #6b7280;
}

.bulk-tab.active {
  color: var(--sms-blue);
  border-bottom-color: var(--sms-blue);
}

.bulk-modal-body {
  padding: 24px;
  overflow-y: auto;
  display: grid;
  gap: 18px;
}

.drop-zone {
  border: 2px dashed var(--sms-border);
  border-radius: 12px;
  padding: 48px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  background: linear-gradient(180deg, rgba(219, 234, 254, 0.08), rgba(255, 255, 255, 0));
}

.drop-zone:hover,
.drop-zone.dragover {
  border-color: var(--sms-blue);
  background: var(--sms-blue-light);
}

.drop-zone strong,
.drop-zone span {
  display: block;
}

.drop-zone span {
  margin-top: 8px;
  color: var(--muted);
}

.bulk-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}

.bulk-preview-card,
.bulk-config-card,
.bulk-preview-pane,
.bulk-summary-card,
.bulk-log-card {
  border: 1px solid var(--sms-border);
  border-radius: 16px;
  background: #fff;
  padding: 18px;
}

.bulk-preview-table-wrap {
  overflow-x: auto;
}

.bulk-preview-table {
  width: 100%;
  border-collapse: collapse;
}

.bulk-preview-table th,
.bulk-preview-table td {
  padding: 10px;
  border-bottom: 1px solid var(--sms-border);
  text-align: left;
  font-size: 0.82rem;
}

.bulk-preview-table th {
  color: #6b7280;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}

.bulk-field-grid {
  display: grid;
  gap: 12px;
}

.bulk-row-count {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
}

.bulk-compose-layout,
.bulk-send-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 18px;
}

.bulk-field-buttons {
  gap: 8px;
  flex-wrap: wrap;
  margin: 12px 0;
}

.bulk-preview-pane {
  background:
    radial-gradient(circle at top right, rgba(219, 234, 254, 0.7), transparent 34%),
    #f8fbff;
}

.bulk-preview-message {
  padding: 14px;
  border-radius: 16px;
  background: var(--sms-bubble-sent);
  color: #fff;
  line-height: 1.45;
  white-space: pre-wrap;
}

.bulk-note,
.bulk-error {
  font-size: 0.82rem;
}

.bulk-note {
  color: var(--muted);
}

.bulk-error {
  color: #b91c1c;
  font-weight: 700;
}

.bulk-modal-actions {
  padding: 0 24px 24px;
}

.progress-bar-track {
  background: #e5e7eb;
  border-radius: 999px;
  height: 8px;
  margin: 16px 0;
}

.progress-bar-fill {
  background: var(--sms-blue);
  height: 8px;
  border-radius: 999px;
  transition: width 0.3s ease;
}

.send-log {
  height: 220px;
  overflow-y: auto;
  background: #f9fafb;
  border-radius: 8px;
  padding: 12px;
  font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  border: 1px solid var(--sms-border);
  white-space: pre-wrap;
}

.send-log-success {
  color: #059669;
}

.send-log-error {
  color: #dc2626;
}

.bulk-hidden {
  display: none;
}

.sms-toast-stack {
  position: fixed;
  right: 22px;
  bottom: 22px;
  display: grid;
  gap: 10px;
  z-index: 1100;
}

.sms-toast {
  min-width: 260px;
  max-width: 360px;
  padding: 14px 16px;
  border-radius: 14px;
  background: #111827;
  color: #fff;
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.18);
}

.sms-toast strong,
.sms-toast span {
  display: block;
}

.sms-toast span {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.82rem;
}

@media (max-width: 1180px) {
  .sms-desk,
  .bulk-grid,
  .bulk-compose-layout,
  .bulk-send-layout {
    grid-template-columns: 1fr;
  }

  .sms-left-col {
    border-right: 0;
    border-bottom: 1px solid var(--sms-border);
  }
}

@media (max-width: 780px) {
  .sms-desk {
    margin: 0 -12px -12px;
  }

  .sms-card-actions,
  .sms-conversation-head,
  .sms-composer-row,
  .bulk-modal-header,
  .bulk-modal-actions,
  .bulk-send-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .bubble {
    max-width: 86%;
  }

  .bulk-modal-overlay {
    padding: 10px;
  }

  .bulk-modal-body,
  .bulk-modal-header,
  .bulk-modal-actions,
  .bulk-tabs {
    padding-left: 16px;
    padding-right: 16px;
  }

  .bulk-tab {
    padding-left: 12px;
    padding-right: 12px;
  }
}