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

:root {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-card: #16213e;
  --bg-input: #0a0a15;
  --text-primary: #e0e0e0;
  --text-secondary: #8892b0;
  --text-muted: #5a6380;
  --accent: #6c63ff;
  --accent-hover: #5a52d5;
  --green: #00c853;
  --red: #ff1744;
  --orange: #ff9100;
  --blue: #448aff;
  --border: #2a2a4a;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

.app {
  max-width: 1600px;
  margin: 0 auto;
  padding: 20px;
}

.header {
  text-align: center;
  padding: 30px 0;
}

.header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #ff6b9d);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.logo-icon {
  display: inline-flex;
  -webkit-text-fill-color: initial;
}

.logo-icon svg {
  vertical-align: middle;
}

.subtitle {
  color: var(--text-secondary);
  margin-top: 8px;
  font-size: 1.1rem;
}

.api-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 6px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.8rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.checking {
  background: var(--orange);
  animation: pulse 1s infinite;
}

.status-dot.ok {
  background: var(--green);
}

.status-dot.error {
  background: var(--red);
}

.status-text {
  color: var(--text-secondary);
}

.header-bottom {
  display: flex;
  justify-content: center;
  gap: 16px;
  align-items: center;
  margin-top: 12px;
  flex-wrap: wrap;
}

.quota-widget {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.8rem;
}

.quota-label {
  color: var(--text-secondary);
  white-space: nowrap;
}

.quota-bar {
  width: 80px;
  height: 6px;
  background: var(--bg-input);
  border-radius: 3px;
  overflow: hidden;
}

.quota-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s, background 0.3s;
  background: var(--green);
}

.quota-fill.warn {
  background: var(--orange);
}

.quota-fill.danger {
  background: var(--red);
}

.quota-text {
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 60px;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mode-tabs {
  display: flex;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.mode-tab {
  flex: 1;
  padding: 10px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.mode-tab:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.mode-tab.active {
  background: var(--accent);
  color: white;
}

.panel {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 20px;
  border: 1px solid var(--border);
}

.panel h3 {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  resize: vertical;
  min-height: 120px;
}

.file-hint {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 30px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--bg-input);
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(108, 99, 255, 0.05);
}

.drop-zone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.drop-icon {
  font-size: 2rem;
}

.drop-text {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

.drop-hint {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.drop-formats {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.drop-zone-file {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
}

.drop-zone-file .file-remove {
  background: none;
  border: none;
  color: var(--red);
  cursor: pointer;
  font-size: 1rem;
  padding: 0 4px;
}

.column-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.column-table th,
.column-table td {
  padding: 8px 12px;
  border: 1px solid var(--border);
  text-align: left;
}

.column-table th {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.column-table td {
  color: var(--text-primary);
}

.column-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
}

.column-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: auto;
  padding: 8px 16px;
  font-size: 0.85rem;
}

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

.history-list {
  max-height: 300px;
  overflow-y: auto;
}

.history-more {
  display: block;
  text-align: center;
  padding: 8px;
  color: var(--accent);
  font-size: 0.85rem;
  text-decoration: none;
  border-top: 1px solid var(--border);
}

.history-more:hover {
  text-decoration: underline;
}

.history-item {
  padding: 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
  border-bottom: 1px solid var(--border);
}

.history-item:hover {
  background: var(--bg-card);
}

.history-item .phrase {
  font-weight: 600;
  font-size: 0.9rem;
}

.history-item .meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.history-item .delete-btn {
  float: right;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
}

.history-item .delete-btn:hover {
  color: var(--red);
}

.empty-state {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 20px;
}

.main {
  min-height: 600px;
}

.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 400px;
  gap: 16px;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.hidden {
  display: none !important;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.results-header h2 {
  font-size: 1.4rem;
}

.header-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.dropdown {
  position: relative;
}

.dropdown-toggle::after {
  content: ' ▾';
  font-size: 0.7em;
}

.dropdown-menu {
  display: none;
  position: absolute;
  right: 0;
  top: 100%;
  margin-top: 4px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  z-index: 100;
  min-width: 120px;
  box-shadow: var(--shadow);
}

.dropdown-menu.open {
  display: block;
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: 8px 14px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 0.85rem;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
}

.dropdown-item:hover {
  background: var(--bg-card);
  color: var(--accent);
}

.stats-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  flex: 1;
  min-width: 140px;
}

.stat-card .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-card .value {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 4px;
}

.stat-card .value.green { color: var(--green); }
.stat-card .value.red { color: var(--red); }
.stat-card .value.orange { color: var(--orange); }
.stat-card .value.blue { color: var(--blue); }

.chart-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.chart-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.chart-card.wide {
  grid-column: span 2;
}

.chart-card h3 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.chart-container {
  position: relative;
  height: 300px;
}

.chart-container.tall {
  height: 400px;
}

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

.trends-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.trends-table th {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 2px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.trends-table th.sortable {
  cursor: pointer;
  user-select: none;
  transition: color 0.2s;
}

.trends-table th.sortable:hover {
  color: var(--accent);
}

.trends-table th.sortable.active {
  color: var(--accent);
}

.sort-arrow {
  font-size: 0.8em;
  margin-left: 2px;
  opacity: 0.5;
}

.trends-table th.sortable.active .sort-arrow {
  opacity: 1;
}

.trends-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.trends-table tr:hover td {
  background: rgba(108, 99, 255, 0.05);
}

.th-check, .td-check {
  width: 40px;
  text-align: center;
}

.td-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

#selectAll {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-growing {
  background: rgba(0, 200, 83, 0.15);
  color: var(--green);
}

.badge-declining {
  background: rgba(255, 23, 68, 0.15);
  color: var(--red);
}

.badge-stable {
  background: rgba(138, 146, 176, 0.15);
  color: var(--text-secondary);
}

.badge-spike {
  background: rgba(255, 145, 0, 0.15);
  color: var(--orange);
}

.badge-seasonal {
  background: rgba(68, 138, 255, 0.15);
  color: var(--blue);
}

.empty-dashboard {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 500px;
  text-align: center;
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: 16px;
}

.empty-dashboard h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.empty-dashboard p {
  color: var(--text-secondary);
}

.btn-graph {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  background: rgba(108, 99, 255, 0.15);
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-graph:hover {
  background: var(--accent);
  color: white;
}

.btn-graph-icon {
  font-size: 0.9em;
}

.row-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

.btn-delete-row {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1px solid rgba(255, 23, 68, 0.3);
  background: rgba(255, 23, 68, 0.1);
  color: var(--red);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.btn-delete-row:hover {
  background: var(--red);
  color: white;
  border-color: var(--red);
}

.chart-row td {
  padding: 0 !important;
  border-bottom: 2px solid var(--accent) !important;
}

.phrase-chart-wrapper {
  background: var(--bg-card);
  margin: 8px 12px 12px;
  border-radius: 10px;
  padding: 16px;
  border: 1px solid var(--border);
}

.phrase-chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.phrase-chart-title {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.chart-loading {
  color: var(--text-muted);
  font-size: 0.8rem;
  animation: pulse 1s infinite;
}

.phrase-chart-container {
  position: relative;
  height: 250px;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  width: 100%;
}

.header-title {
  text-align: left;
}

.user-nav {
  display: flex;
  align-items: center;
}

.user-menu {
  position: relative;
}

.user-menu-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}

.user-menu-btn:hover {
  border-color: var(--accent);
}

.user-menu-btn .user-name {
  font-weight: 600;
  color: var(--accent);
}

.menu-arrow {
  font-size: 0.7em;
  color: var(--text-secondary);
}

.user-dropdown {
  display: none;
  position: absolute;
  right: 0;
  top: 100%;
  margin-top: 4px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  z-index: 100;
  min-width: 180px;
  box-shadow: var(--shadow);
}

.user-dropdown.open {
  display: block;
}

.user-dropdown .dropdown-item {
  display: block;
  width: 100%;
  padding: 10px 16px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 0.9rem;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
}

.user-dropdown .dropdown-item:hover {
  background: var(--bg-card);
  color: var(--accent);
}

.user-dropdown .logout-item {
  color: var(--red);
}

.user-dropdown .logout-item:hover {
  background: rgba(255, 23, 68, 0.1);
  color: var(--red);
}

.dropdown-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 4px 0;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
}

.modal-content {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  max-width: 440px;
  width: 90%;
  box-shadow: var(--shadow);
}

.modal-content h2 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.modal-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.form-actions .btn {
  flex: 1;
}

.error {
  color: var(--red);
  font-size: 0.85rem;
  margin-top: 10px;
  display: none;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .chart-grid {
    grid-template-columns: 1fr;
  }

  .chart-card.wide {
    grid-column: span 1;
  }

  .header-top {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .header-title {
    text-align: center;
  }

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

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

  .user-dropdown {
    width: 100%;
  }
}