:root {
  --bg-color: var(--color-bg);
  --panel-bg: var(--color-section-bg);
  --panel-bg-hover: var(--color-bg);
  --border-color: var(--color-border);
  --text-main: var(--color-text-primary);
  --text-muted: #86868b;
  --primary-color: #1d9bf0;
  --primary-hover: #1a8cd8;
  --success-color: #238636;
  --font-family: var(--font-text);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: var(--radius-card);
  --radius-xl: 24px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-container {
  padding-bottom: 160px; /* Space for bottom action bar */
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

.app-container {
  width: 100%;
  max-width: 1000px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* Header */
.app-header {
  text-align: center;
  padding: 32px 0;
}

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

.app-icon {
  color: var(--primary-color);
  width: 36px;
  height: 36px;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.app-description {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* Main Content */
.filters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

/* Card */
.filter-card {
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: border-color var(--transition);
}

.filter-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
}

.card-header i {
  color: var(--primary-color);
  width: 20px;
  height: 20px;
}

.card-header h2 {
  font-size: 1.1rem;
  font-weight: 600;
}

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

/* Inputs */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.input-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.help-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: monospace;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="time"],
select {
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-main);
  font-size: 0.95rem;
  transition: all var(--transition);
}

select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url('data:image/svg+xml;utf8,<svg fill="%238b949e" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/></svg>');
  background-repeat: no-repeat;
  background-position-x: 98%;
  background-position-y: 50%;
  cursor: pointer;
}

select option {
  background: #161b22;
  color: #e6edf3;
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(29, 155, 240, 0.15);
}

input::placeholder {
  color: rgba(139, 148, 158, 0.5);
}

/* User Preview */
.user-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-top: 4px;
  transition: all var(--transition);
}

.user-preview img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.user-preview .user-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.user-preview .user-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-preview .user-handle {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.user-preview .user-meta {
  font-size: 0.75rem;
  color: var(--primary-color);
  margin-top: 2px;
  font-weight: 500;
}

.user-preview.error {
  color: #ff7b72;
  font-size: 0.8rem;
  padding: 12px;
}

.user-preview.loading {
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 12px;
}

/* Checkbox Grid */
.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

/* Custom Checkbox */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 0.95rem;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  display: none;
}

.checkbox-custom {
  position: relative;
  width: 20px;
  height: 20px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  transition: all var(--transition);
}

.checkbox-label input:checked ~ .checkbox-custom {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.checkbox-custom::after {
  content: "";
  position: absolute;
  display: none;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-label input:checked ~ .checkbox-custom::after {
  display: block;
}

/* Range Input */
.range-wrapper {
  display: grid;
  grid-template-columns: 1fr 80px;
  gap: 12px;
  align-items: center;
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  transition: transform var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* Dates */
.date-row {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hidden {
  display: none !important;
}

.note-text {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.divider {
  height: 1px;
  background: var(--border-color);
  margin: 4px 0;
}

/* Toggle Switch */
.toggle-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(255, 255, 255, 0.2);
  transition: .4s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary-color);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

.toggle-label {
  font-size: 0.95rem;
}

/* Bottom Action Bar */
.bottom-action-bar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 48px);
  max-width: 1000px;
  background: var(--color-nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xl);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  z-index: 100;
}

@media (min-width: 768px) {
  .bottom-action-bar {
    flex-direction: row;
    align-items: stretch;
    padding: 16px;
  }
}

.query-preview {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.query-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.query-header h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
}

.char-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.query-output-wrapper {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  min-height: 48px;
  display: flex;
  align-items: center;
  overflow-x: auto;
}

.query-output {
  font-family: 'Berkeley Mono', 'Fira Code', monospace;
  font-size: 0.95rem;
  color: var(--primary-color);
  white-space: nowrap;
}

.query-output:empty::before {
  content: "検索条件を入力するとここにクエリが表示されます";
  color: var(--text-muted);
  font-family: var(--font-family);
  font-size: 0.9rem;
}

.action-buttons {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  height: 48px;
}

.btn i {
  width: 18px;
  height: 18px;
}

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

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(29, 155, 240, 0.3);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* Toast Notification */
.toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: var(--success-color);
  color: white;
  padding: 12px 24px;
  border-radius: 30px;
  font-weight: 500;
  font-size: 0.95rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  opacity: 0;
  z-index: 200;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Responsive */
@media (max-width: 767px) {
  .app-container {
    padding: 16px;
    padding-bottom: 240px;
  }
  
  .filters-grid {
    grid-template-columns: 1fr;
  }
  
  .action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .btn {
    width: 100%;
    padding: 12px 16px;
  }
  
  .bottom-action-bar {
    width: calc(100% - 32px);
    bottom: 16px;
    padding: 16px;
  }
}