:root {
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-border: #e5e7eb;
  --color-border-subtle: #f3f4f6;
  --color-text-primary: #111827;
  --color-text-secondary: #4b5563;
  --color-text-muted: #6b7280;
  --color-accent: #1d4ed8;
  --color-accent-subtle: #eff6ff;
  --color-accent-border: #bfdbfe;
  --radius-base: 6px;
  --radius-pill: 9999px;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-border);
}

.header-main {
  flex: 1;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.page-subtitle {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-indicator {
  font-size: 12px;
  color: var(--color-text-muted);
}

.button-action {
  background-color: var(--color-accent);
  color: #ffffff;
  border: 1px solid var(--color-accent);
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-base);
  cursor: pointer;
}

.button-action:hover {
  background-color: #1e40af;
}

.button-action:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.round-toggle-group {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}

.toggle-button {
  background-color: var(--color-surface);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-base);
  cursor: pointer;
}

.toggle-button:hover {
  background-color: var(--color-bg);
  color: var(--color-text-primary);
}

.toggle-button.active {
  background-color: var(--color-accent-subtle);
  border-color: var(--color-accent-border);
  color: var(--color-accent);
  font-weight: 600;
}

.button-secondary {
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-base);
  cursor: pointer;
}

.button-secondary:hover {
  background-color: var(--color-bg);
}

.button-text {
  background: transparent;
  color: var(--color-text-secondary);
  border: none;
  font-size: 12px;
  cursor: pointer;
  text-decoration: underline;
  padding: 7px 4px;
}

.button-text:hover {
  color: var(--color-text-primary);
}

.progress-section {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: 20px;
  margin-bottom: 24px;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.progress-title-wrap {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.progress-col {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.progress-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.progress-subvalue {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
}

.meta-info {
  font-size: 12px;
  color: var(--color-text-muted);
}

.progress-track {
  width: 100%;
  height: 8px;
  background-color: var(--color-border);
  border-radius: var(--radius-base);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background-color: var(--color-accent);
  transition: width 0.4s ease;
}

.summary-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border-subtle);
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.metric-label {
  font-size: 12px;
  color: var(--color-text-muted);
}

.metric-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.notice-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-base);
  padding: 12px 14px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.notice-box.hidden {
  display: none;
}

.candidates-section {
  margin-bottom: 32px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.section-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.candidates-count {
  font-size: 12px;
  color: var(--color-text-muted);
}

.candidates-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.candidate-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.candidate-card.is-leader {
  border-color: var(--color-accent-border);
  background-color: #fafbfd;
}

.candidate-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.candidate-identity {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.candidate-number {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
}

.candidate-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.badge-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text-secondary);
}

.badge-tag.tag-elected {
  background-color: var(--color-accent-subtle);
  border-color: var(--color-accent-border);
  color: var(--color-accent);
  font-weight: 600;
}

.candidate-stats {
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-align: right;
}

.candidate-percent {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.candidate-votes {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.candidate-bar-track {
  width: 100%;
  height: 6px;
  background-color: var(--color-border);
  border-radius: var(--radius-base);
  overflow: hidden;
}

.candidate-bar-fill {
  height: 100%;
  background-color: var(--color-text-secondary);
  transition: width 0.3s ease;
}

.candidate-card.is-leader .candidate-bar-fill {
  background-color: var(--color-accent);
}

@keyframes skeleton-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.45;
  }
}

.skeleton-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.skeleton-line {
  background-color: #e5e7eb;
  border-radius: var(--radius-base);
  animation: skeleton-pulse 1.4s ease-in-out infinite;
}

.skeleton-title {
  width: 180px;
  height: 16px;
}

.skeleton-stat {
  width: 90px;
  height: 18px;
}

.skeleton-bar {
  width: 100%;
  height: 6px;
}

.loading-state, .error-state, .empty-state {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: 28px 16px;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.settings-panel {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: 14px 16px;
}

.settings-summary {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  cursor: pointer;
  user-select: none;
}

.settings-content {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.form-select {
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  padding: 8px 10px;
  font-size: 13px;
  font-family: inherit;
  border-radius: var(--radius-base);
  width: 100%;
}

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

.settings-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-credit {
  font-size: 12px;
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .summary-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .container {
    padding: 20px 14px 36px;
  }
  .header {
    flex-direction: column;
    align-items: stretch;
  }
  .header-actions {
    justify-content: space-between;
  }
  .round-toggle-group {
    flex-direction: column;
  }
  .summary-metrics {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .candidate-header {
    flex-direction: column;
    gap: 6px;
  }
  .candidate-stats {
    width: 100%;
    justify-content: space-between;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}