/* ============================================
   Административная панель маркетинговых опросов
   ============================================ */

/* CSS Variables */
:root {
  --primary-color: #3498db;
  --primary-dark: #2980b9;
  --secondary-color: #2ecc71;
  --secondary-dark: #27ae60;
  --background-color: #f8f9fa;
  --card-background: #ffffff;
  --text-color: #2c3e50;
  --text-light: #7f8c8d;
  --border-color: #e1e8ed;
  --error-color: #e74c3c;
  --warning-color: #f39c12;
  --success-color: #27ae60;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu,
    Cantarell, sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
  min-height: 100vh;
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

/* Header */
.header {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-dark)
  );
  color: white;
  padding: 30px 0;
  margin-bottom: 30px;
  box-shadow: var(--shadow);
}

.header h1 {
  font-size: 1.8rem;
  font-weight: 600;
  text-align: center;
}

.header h1 span {
  font-weight: 400;
  opacity: 0.9;
}

/* Cards */
.card {
  background: var(--card-background);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 25px;
  margin-bottom: 20px;
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--border-color);
}

.card-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-color);
}

/* Survey Selection */
.survey-selection {
  display: flex;
  gap: 15px;
  align-items: center;
  flex-wrap: wrap;
}

.survey-selection label {
  font-weight: 500;
  color: var(--text-color);
}

.survey-select {
  flex: 1;
  min-width: 250px;
  padding: 12px 15px;
  font-size: 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: white;
  color: var(--text-color);
  cursor: pointer;
  transition: var(--transition);
}

.survey-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.btn {
  padding: 12px 30px;
  font-size: 1rem;
  font-weight: 500;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-dark)
  );
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: var(--background-color);
  color: var(--text-color);
  border: 2px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--border-color);
}

/* Survey Info */
.survey-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-bottom: 20px;
}

.info-item {
  padding: 15px;
  background: var(--background-color);
  border-radius: var(--border-radius);
}

.info-label {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 5px;
}

.info-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-color);
}

/* Tabs */
.tabs {
  display: flex;
  gap: 5px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--border-color);
}

.tab-btn {
  padding: 12px 25px;
  font-size: 1rem;
  font-weight: 500;
  background: transparent;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.tab-btn:hover {
  color: var(--primary-color);
}

.tab-btn.active {
  color: var(--primary-color);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-color);
  border-radius: 3px 3px 0 0;
}

.tab-content {
  display: none;
}

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

/* Two Column Layout */
.stats-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 25px;
}

@media (max-width: 1024px) {
  .stats-layout {
    grid-template-columns: 1fr;
  }
}

/* Charts Container */
.charts-container {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.chart-wrapper {
  background: var(--card-background);
  border-radius: var(--border-radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.chart-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 15px;
  text-align: center;
}

.chart-canvas {
  max-height: 300px;
}

/* DataTables Customization */
.dataTable {
  width: 100% !important;
  border-collapse: collapse;
}

.dataTable thead th {
  background: var(--background-color);
  color: var(--text-color);
  font-weight: 600;
  padding: 12px 15px;
  text-align: left;
  border-bottom: 2px solid var(--border-color);
}

.dataTable tbody td {
  padding: 12px 15px;
  border-bottom: 1px solid var(--border-color);
}

.dataTable tbody tr:hover {
  background-color: rgba(52, 152, 219, 0.05);
}

.dataTable tbody tr:last-child td {
  border-bottom: none;
}

.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter {
  margin-bottom: 15px;
}

.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
  padding: 8px 12px;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 0.9rem;
}

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

.dataTables_wrapper .dataTables_paginate {
  margin-top: 15px;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
  padding: 6px 12px;
  margin: 0 2px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  cursor: pointer;
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
  background: var(--primary-color);
  color: white !important;
  border-color: var(--primary-color);
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
  background: var(--primary-color);
  color: white !important;
  border-color: var(--primary-color);
}

/* Text Answers */
.text-answers-list {
  max-height: 500px;
  overflow-y: auto;
}

.text-answer-item {
  padding: 15px;
  border-bottom: 1px solid var(--border-color);
}

.text-answer-item:last-child {
  border-bottom: none;
}

.text-answer-meta {
  display: flex;
  gap: 15px;
  margin-bottom: 8px;
  font-size: 0.85rem;
  color: var(--text-light);
}

.text-answer-content {
  color: var(--text-color);
  line-height: 1.5;
}

/* Loading */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 50px;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loading-text {
  margin-top: 15px;
  color: var(--text-light);
}

/* Error */
.error-message {
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid var(--error-color);
  color: var(--error-color);
  padding: 15px 20px;
  border-radius: var(--border-radius);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.error-message::before {
  content: '⚠';
  font-size: 1.2rem;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 50px 20px;
  color: var(--text-light);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 15px;
  opacity: 0.5;
}

.empty-state-text {
  font-size: 1.1rem;
}

/* Hidden */
.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 15px;
  }

  .header {
    padding: 20px 0;
  }

  .header h1 {
    font-size: 1.4rem;
  }

  .card {
    padding: 15px;
  }

  .survey-selection {
    flex-direction: column;
    align-items: stretch;
  }

  .survey-select {
    min-width: 100%;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .tab-btn {
    padding: 10px 15px;
    white-space: nowrap;
  }

  .survey-info {
    grid-template-columns: 1fr;
  }

  .dataTable thead th,
  .dataTable tbody td {
    padding: 10px;
    font-size: 0.9rem;
  }

  .chart-wrapper {
    padding: 15px;
  }
}

/* Print Styles */
@media print {
  .header,
  .survey-selection,
  .tabs,
  .btn {
    display: none;
  }

  .card {
    box-shadow: none;
    border: 1px solid var(--border-color);
  }

  .stats-layout {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Response Cards - Карточки ответов
   ============================================ */

/* Grid для карточек */
.response-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 20px;
  padding: 10px 0;
}

@media (max-width: 480px) {
  .response-cards-grid {
    grid-template-columns: 1fr;
  }
}

/* Карточка ответа */
.response-card {
  background: var(--card-background);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}

.response-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

/* Заголовок карточки */
.response-card-header {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-dark)
  );
  color: white;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.response-card-number {
  font-weight: 600;
  font-size: 1rem;
}

.response-card-meta {
  display: flex;
  gap: 15px;
  font-size: 0.85rem;
  opacity: 0.9;
}

.response-date,
.response-name {
  display: flex;
  align-items: center;
  gap: 5px;
}

/* Тело карточки */
.response-card-body {
  padding: 20px;
}

/* Элемент ответа */
.answer-item {
  padding: 15px 0;
  border-bottom: 1px solid var(--border-color);
}

.answer-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.answer-item:first-child {
  padding-top: 0;
}

.answer-question {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 8px;
  font-weight: 500;
}

.answer-value {
  font-size: 1rem;
  color: var(--text-color);
  font-weight: 600;
}

.answer-option {
  display: inline-block;
}

.answer-text {
  background: var(--background-color);
  padding: 12px 15px;
  border-radius: var(--border-radius);
  line-height: 1.5;
  font-weight: 400;
}

/* Отображение рейтинга звёздами */
.rating-display {
  display: flex;
  align-items: center;
  gap: 12px;
}

.rating-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.rating-stars {
  display: flex;
  gap: 2px;
}

.star {
  font-size: 1.3rem;
  color: var(--border-color);
  transition: var(--transition);
}

.star.filled {
  color: #f1c40f;
}

/* Нет ответа */
.no-answer {
  color: var(--text-light);
  font-style: italic;
  font-weight: 400;
}

/* Адаптивность для карточек */
@media (max-width: 768px) {
  .response-card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .response-card-meta {
    width: 100%;
    justify-content: flex-start;
  }

  .answer-item {
    padding: 12px 0;
  }

  .rating-display {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* Печать карточек */
@media print {
  .response-cards-grid {
    grid-template-columns: 1fr;
  }

  .response-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--border-color);
  }

  .response-card-header {
    background: none;
    color: var(--text-color);
    border-bottom: 2px solid var(--border-color);
  }
}