:root {
  --primary-color: #0b66c3;
  --primary-hover: #09529d;
  --accent-color: #2fc6f6;
  --bg-color: #eef2f5;
  --card-bg: #ffffff;
  --text-main: #333333;
  --text-muted: #535c69;
  --border-color: #dbe2e6;
  --border-radius: 8px;
  --danger-color: #d9534f;
  --warning-color: #f0ad4e;
  --success-color: #5cb85c;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  padding: 20px;
  font-size: 14px;
  line-height: 1.5;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

/* App Header */
.app-header {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 18px 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.app-title h1 {
  font-size: 20px;
  font-weight: 600;
  color: #202428;
}

.app-title p {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 4px;
}

.portal-badge {
  display: inline-flex;
  align-items: center;
  background: #eef4fc;
  color: #1967d2;
  border: 1px solid #d2e3fc;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

/* Filter Card */
.filter-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 20px 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.filter-form {
  display: grid;
  grid-template-columns: minmax(200px, 2.2fr) minmax(140px, 1.2fr) minmax(120px, 1fr) auto;
  gap: 16px;
  align-items: flex-end;
  width: 100%;
}

.form-group-action {
  display: flex;
  align-items: flex-end;
}

@media (max-width: 860px) {
  .filter-form {
    grid-template-columns: 1fr 1fr;
  }
  .form-group-action {
    grid-column: span 2;
  }
}

@media (max-width: 540px) {
  .filter-form {
    grid-template-columns: 1fr;
  }
  .form-group-action {
    grid-column: span 1;
  }
}

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

.form-group label {
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-size: 13px;
}

.form-control {
  height: 38px;
  padding: 6px 12px;
  font-size: 14px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: #fff;
  color: var(--text-main);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(11, 102, 195, 0.2);
}

.btn-primary {
  height: 38px;
  padding: 0 22px;
  background-color: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: nowrap;
  box-sizing: border-box;
  width: 100%;
}

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

.btn-primary:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Stats Summary Badges */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.stat-badge {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 16px 20px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.stat-badge .stat-label {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-badge .stat-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 4px;
}

.stat-badge.stat-gaps .stat-value {
  color: var(--warning-color);
}

.stat-badge.stat-activities .stat-value {
  color: var(--primary-color);
}

.stat-badge.stat-active .stat-value {
  color: var(--success-color);
}

/* Chart Card */
.chart-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 24px;
  box-shadow: var(--shadow);
  position: relative;
  min-height: 420px;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  border-bottom: 1px solid #f0f2f5;
  padding-bottom: 12px;
}

.chart-header h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
}

.chart-container {
  position: relative;
  width: 100%;
  height: 340px;
}

#activityChart {
  width: 100% !important;
  height: 100% !important;
  cursor: pointer;
}

/* Details Card */
.details-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 24px;
  margin-top: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  animation: fadeIn 0.25s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.details-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #f0f2f5;
}

.details-header h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.details-count-badge {
  background: #eef2f5;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 12px;
}

.details-table-wrapper {
  overflow-x: auto;
}

.details-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13.5px;
}

.details-table th {
  background-color: #f8fafc;
  color: var(--text-muted);
  font-weight: 600;
  padding: 10px 14px;
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.details-table td {
  padding: 12px 14px;
  border-bottom: 1px solid #edf2f7;
  color: var(--text-main);
  vertical-align: middle;
}

.details-table tr:hover td {
  background-color: #f8fafc;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.badge-type {
  background-color: #f1f5f9;
  color: #475569;
  border: 1px solid #e2e8f0;
}

.badge-type-call, .badge-type-звонок { background-color: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }
.badge-type-meeting, .badge-type-встреча { background-color: #faf5ff; color: #7e22ce; border: 1px solid #e9d5ff; }
.badge-type-task, .badge-type-задача { background-color: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.badge-type-email, .badge-type-письмо { background-color: #fff7ed; color: #c2410c; border: 1px solid #fed7aa; }

.badge-type-изменение-лида { background-color: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.badge-type-изменение-сделки { background-color: #f0fdf4; color: #15803d; border: 1px solid #bbf7d0; }
.badge-type-изменение-контакта { background-color: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }
.badge-type-изменение-компании { background-color: #fffbeb; color: #b45309; border: 1px solid #fde68a; }

.badge-modified {
  background-color: #f3e8ff;
  color: #7e22ce;
  border: 1px solid #e9d5ff;
}

.crm-entity-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s;
}

.crm-entity-link:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

.badge-success {
  background-color: #dcfce7;
  color: #15803d;
  border: 1px solid #bbf7d0;
}

.badge-pending {
  background-color: #fef3c7;
  color: #b45309;
  border: 1px solid #fde68a;
}

.empty-slot-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background-color: #f8fafc;
  border: 1px dashed #cbd5e1;
  border-radius: 6px;
  color: #475569;
  font-size: 14px;
}

.empty-slot-icon {
  font-size: 24px;
  line-height: 1;
}

/* Alert & Loading States */
.alert {
  padding: 14px 18px;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 14px;
}

.alert-danger {
  background-color: #fdf0f0;
  color: var(--danger-color);
  border: 1px solid #f8d7da;
}

.alert-info {
  background-color: #eaf6fc;
  color: #1769aa;
  border: 1px solid #d0eaf8;
}

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.85);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius);
  z-index: 10;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 12px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-overlay p {
  color: var(--text-muted);
  font-weight: 500;
}

/* Install Page Specific Styles */
.install-container {
  max-width: 500px;
  margin: 60px auto;
  text-align: center;
}

.install-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 40px;
  box-shadow: var(--shadow);
}

.install-icon {
  width: 64px;
  height: 64px;
  background-color: #e8f5e9;
  color: #2e7d32;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 18px;
}