:root {
  --primary-color: #6782e0;
  --primary-hover: #566cc4;
  --bg-dark: #060913;
  --bg-card: rgba(14, 23, 50, 0.6);
  --bg-card-hover: rgba(20, 32, 65, 0.8);
  --text-primary: #e0e5f2;
  --text-secondary: #8b9dc3;
  --border-color: rgba(103, 130, 224, 0.2);
  --danger-color: #e06767;
  --success-color: #67e096;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

* {
  box-sizing: border-box;
}

.hidden {
  display: none !important;
}

/* Typography */
h1, h2, h3, h4 {
  margin-top: 0;
  font-weight: 600;
}

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

.sidebar {
  width: 260px;
  background: linear-gradient(180deg, rgba(14, 23, 50, 0.95), rgba(8, 14, 30, 0.96));
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 24px 16px;
}

.brand h2 {
  color: #fff;
  margin: 0;
  font-size: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand .eyebrow {
  color: var(--primary-color);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 4px 0 32px 0;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.nav-item {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  text-align: left;
  padding: 12px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-item:hover {
  background: rgba(103, 130, 224, 0.1);
  color: #fff;
}

.nav-item.active {
  background: var(--primary-color);
  color: #fff;
  font-weight: 500;
}

.nav-item i {
  font-size: 20px;
}

.user-info {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.user-info p {
  margin: 0 0 12px 0;
  font-size: 13px;
  color: var(--text-secondary);
}

.content-area {
  flex: 1;
  padding: 30px 40px;
  overflow-y: auto;
}

/* Cards & Sections */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  min-height: calc(100vh - 60px);
}

.hidden-section {
  display: none;
}

.active-section {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
}

.section-head h2 {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
}

/* Buttons */
button {
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(103, 130, 224, 0.3);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-danger {
  background: rgba(224, 103, 103, 0.1);
  color: var(--danger-color);
  border: 1px solid rgba(224, 103, 103, 0.3);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
}

.btn-danger:hover {
  background: rgba(224, 103, 103, 0.2);
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 4px;
  border-radius: 4px;
}

.btn-icon:hover {
  color: var(--primary-color);
  background: rgba(103, 130, 224, 0.1);
}

/* Forms & Inputs */
input, select {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  transition: all 0.2s;
  outline: none;
}

input:focus, select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(103, 130, 224, 0.2);
}

.inline-form {
  display: flex;
  gap: 12px;
  align-items: center;
}

.grid-form {
  display: grid;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-select {
  width: 100%;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%236782e0%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E");
  background-repeat: no-repeat;
  background-position: right 12px top 50%;
  background-size: 12px auto;
}

/* Dashboard KPIs */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.kpi-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.2s;
}

.kpi-card:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.05);
}

.kpi-title {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.kpi-value {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
}

/* Charts */
.charts-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.chart-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
}

.canvas-wrapper {
  position: relative;
  height: 300px;
  width: 100%;
}

.chart-box h3 {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  text-align: center;
}

/* Data Tables */
.table-container {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.2);
}

.data-table td {
  padding: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 14px;
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.badge {
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}
.badge-success { background: rgba(103, 224, 150, 0.15); color: var(--success-color); }
.badge-danger { background: rgba(224, 103, 103, 0.15); color: var(--danger-color); }

/* Split Layout for App Management */
.split-layout {
  display: flex;
  gap: 24px;
  height: calc(100vh - 200px);
}

.left-panel {
  width: 300px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-color);
  padding-right: 24px;
}

.right-panel {
  flex: 1;
  overflow-y: auto;
  padding-left: 8px;
}

.app-list-container {
  flex: 1;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.2);
}

.selectable-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.selectable-list li {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.selectable-list li:hover {
  background: rgba(255, 255, 255, 0.05);
}

.selectable-list li.selected {
  background: rgba(103, 130, 224, 0.2);
  color: #fff;
  border-left: 3px solid var(--primary-color);
}

.detail-section {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
}

.detail-section h4 {
  margin-bottom: 16px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-secondary);
  text-align: center;
}

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

/* Docs */
.doc-endpoint {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  margin-top: 24px;
}

.doc-endpoint h3 {
  color: var(--primary-color);
  font-size: 18px;
  margin-bottom: 16px;
}

.doc-endpoint code {
  background: rgba(103, 130, 224, 0.15);
  color: #a3b8ff;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

.doc-endpoint pre {
  background: #000;
  padding: 16px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  overflow-x: auto;
  margin-top: 16px;
}

/* Login View */
.login-view {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-dark);
}

.login-card {
  background: var(--bg-card);
  padding: 48px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.4);
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.form-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

/* Call Log Filters */
.calllog-filters {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.calllog-filters .filter-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.calllog-filters .filter-row + .filter-row {
  margin-top: 12px;
}

.calllog-filters .form-group {
  min-width: 150px;
}

.calllog-filters input,
.calllog-filters select {
  width: 100%;
}

/* Call Log Pager */
.calllog-pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.calllog-pager #calllogPageInfo {
  color: var(--text-secondary);
  font-size: 14px;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  width: 90%;
  max-width: 900px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  margin: 0;
  color: #fff;
}

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

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

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-item label {
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.detail-item span {
  font-size: 14px;
  color: #fff;
}

.detail-section {
  margin-top: 20px;
}

.detail-section label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.code-block {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13px;
  line-height: 1.5;
  max-height: 300px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-wrap: break-word;
  color: #e0e5f2;
}

/* Status badges */
.status-success { color: var(--success-color); }
.status-failed { color: var(--danger-color); }

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: rgba(30, 35, 50, 0.95);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px 20px;
  color: #fff;
  font-size: 14px;
  max-width: 400px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  animation: toastSlideIn 0.3s ease;
  pointer-events: auto;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.toast.toast-success {
  border-color: var(--success-color);
  background: rgba(34, 197, 94, 0.15);
}

.toast.toast-error {
  border-color: var(--danger-color);
  background: rgba(239, 68, 68, 0.15);
}

.toast.toast-warning {
  border-color: var(--warning-color);
  background: rgba(251, 146, 60, 0.15);
}

.toast-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.toast-success .toast-icon { color: var(--success-color); }
.toast-error .toast-icon { color: var(--danger-color); }
.toast-warning .toast-icon { color: var(--warning-color); }

.toast-message {
  flex: 1;
  line-height: 1.4;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
  font-size: 18px;
  line-height: 1;
  flex-shrink: 0;
}

.toast-close:hover {
  color: #fff;
}

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

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

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 20px;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-text {
  color: #fff;
  font-size: 16px;
}