:root {
  color-scheme: light;
  font-family: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --bg: #f7f6fb;
  --panel: #ffffff;
  --border: #d9d7e2;
  --accent: #2147ff;
  --accent-soft: #e4e9ff;
  --danger: #d64541;
  --danger-soft: #fde8e7;
  --text: #1b1b1d;
  --muted: #575867;
}

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

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
}

.page-header h1 {
  margin: 0;
  font-size: clamp(2rem, 2.8vw, 2.8rem);
}

.page-header p {
  margin-top: 0.75rem;
  color: var(--muted);
  max-width: 60ch;
}

.controls {
  margin-top: 2rem;
  margin-bottom: 2rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.control {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.control label {
  font-weight: 600;
}

.control input[type="number"] {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.35rem 0.5rem;
  font-size: 1rem;
}

.control select {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.4rem 0.5rem;
  font-size: 1rem;
  background: var(--panel);
}

.control .control-hint {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.control-full {
  grid-column: 1 / -1;
}

.builder {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 2fr 1fr;
}

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

.party-panel,
.summary-panel,
.results {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
}

.party-panel h2,
.summary-panel h2,
.results h2 {
  margin-top: 0;
}

.party-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.party-card {
  border: 2px solid var(--party-color, var(--border));
  border-radius: 0.85rem;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  background: var(--panel);
  color: var(--text);
  transition: transform 0.15s ease, border-color 0.2s ease, background 0.2s ease,
    color 0.2s ease;
  cursor: pointer;
  position: relative;
}

.party-card:hover {
  transform: translateY(-2px);
}

.party-card.selected {
  border-color: var(--party-color, var(--accent));
  background: var(--party-color, var(--accent));
  color: #ffffff;
}

.party-card.excluded {
  border-color: var(--party-color, var(--danger));
  background: var(--danger-soft);
  color: var(--danger);
  opacity: 0.85;
}

.party-card .party-name {
  font-weight: 600;
  font-size: 1rem;
  white-space: nowrap;
}

.party-card .party-seats {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  margin-left: auto;
}

.party-card.selected .party-seats {
  color: rgba(255, 255, 255, 0.9);
}

.party-card.excluded .party-seats {
  color: inherit;
}

.party-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
}

.party-identity {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
}

.party-logo {
  width: 38px;
  height: 38px;
  border-radius: 0.6rem;
  background: #ffffff;
  padding: 4px;
  object-fit: contain;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.party-card.selected .party-logo {
  background: rgba(255, 255, 255, 0.85);
}

.party-card.excluded .party-logo {
  filter: grayscale(0.3);
  opacity: 0.85;
}


.party-card .actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  width: 100%;
  margin-top: auto;
}

.party-card button {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.86);
  border-radius: 0.6rem;
  width: 2.2rem;
  height: 2.2rem;
  font-size: 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  padding: 0;
  color: var(--party-color, var(--accent));
}

.party-card button:hover {
  border-color: var(--party-color, var(--accent));
}

.party-card button.active {
  color: #ffffff;
  background: var(--danger);
  border-color: var(--danger);
}

.party-card.selected .actions button {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.4);
  color: #ffffff;
}

.party-card.selected .actions button:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.35);
}

.party-card.selected .actions button.active {
  background: rgba(255, 255, 255, 0.45);
  border-color: rgba(255, 255, 255, 0.6);
}

.party-card.excluded .actions button {
  color: var(--danger);
  border-color: rgba(214, 69, 65, 0.35);
}

.party-card.excluded .actions button:hover {
  border-color: var(--danger);
}

.hint {
  color: var(--muted);
  margin-top: 0.6rem;
}

.summary-card {
  border: 1px solid var(--border);
  border-radius: 0.85rem;
  padding: 1.25rem;
  background: #fdfdff;
  display: grid;
  gap: 0.75rem;
}

.summary-card .total {
  font-size: 1.25rem;
  font-weight: 600;
}

.summary-card ul {
  margin: 0;
  padding-left: 1.2rem;
}

.summary-card li {
  margin-bottom: 0.15rem;
}

.summary-card .excluded {
  color: var(--danger);
  font-weight: 600;
}

.results-info {
  color: var(--muted);
  margin-bottom: 1rem;
}

.results-list {
  margin: 0;
  padding-left: 0;
  display: grid;
  gap: 0.65rem;
}

.results-list li {
  background: #f5f6ff;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  list-style-position: inside;
  border: 1px solid #e2e5ff;
  list-style: none;
}

.coalition-toggle {
  all: unset;
  cursor: pointer;
  width: 100%;
  display: grid;
  gap: 0.25rem;
  position: relative;
}

.coalition-item {
  list-style: none;
  position: relative;
}

.results-list .coalition-line {
  font-weight: 600;
}

.results-list .meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.coalition-details {
  margin: 0.65rem 0 0 0;
  padding-left: 1.2rem;
  display: none;
  color: var(--muted);
  font-size: 0.9rem;
  gap: 0.3rem;
  list-style: disc;
}

.coalition-details li {
  margin-bottom: 0.2rem;
}

.coalition-item.expanded .coalition-details {
  display: block;
}

.coalition-item.expanded {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.coalition-toggle::after {
  content: "\25BC";
  position: absolute;
  right: 0.25rem;
  top: 0.5rem;
  font-size: 0.75rem;
  color: var(--muted);
  transition: transform 0.2s ease;
}

.coalition-item.expanded .coalition-toggle::after {
  transform: rotate(180deg);
}

.coalition-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.coalition-item.expanded .meta {
  color: rgba(27, 27, 29, 0.85);
}

.empty-state {
  color: var(--muted);
  font-style: italic;
}