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

:root {
  --bg: #0a0e14;
  --surface: #131920;
  --border: #1e2836;
  --text: #e6edf3;
  --muted: #7d8b9a;
  --accent: #39ff14;
  --accent-dim: #2bc410;
  --warn: #ffb020;
  --error: #ff4757;
  --player-colors: #39ff14, #00d4ff, #ff6bcb, #ffb020, #a78bfa, #ff4757, #2dd4bf, #f472b6;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.app {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

h1 span {
  color: var(--accent);
}

.status-pill {
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.setup-banner {
  border-color: var(--warn);
  background: rgba(255, 176, 32, 0.08);
}

.setup-banner h2 {
  color: var(--warn);
}

.setup-banner pre {
  margin: 12px 0;
  padding: 12px;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 0.85rem;
  overflow-x: auto;
}

.setup-banner .setup-note {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0;
}

.setup-banner.hidden {
  display: none;
}

.status-pill.connected {
  border-color: var(--accent-dim);
  color: var(--accent);
}

.status-pill.error {
  border-color: var(--error);
  color: var(--error);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}

.card h2 {
  margin: 0 0 12px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 500;
}

.lobby-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

input[type="text"] {
  font: inherit;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text);
  min-width: 120px;
}

input[type="text"]:focus {
  outline: none;
  border-color: var(--accent-dim);
}

button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 16px;
  transition: border-color 0.15s, background 0.15s;
}

button:hover:not(:disabled) {
  border-color: var(--accent-dim);
}

button.primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 600;
}

button.primary:hover:not(:disabled) {
  background: var(--accent-dim);
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.player-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.player-row {
  display: grid;
  grid-template-columns: 24px 1fr 80px 60px;
  gap: 12px;
  align-items: center;
  font-size: 0.85rem;
}

.player-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.player-row.ready .player-dot {
  box-shadow: 0 0 8px var(--accent);
}

.player-row .ready-tag {
  font-size: 0.65rem;
  color: var(--accent);
}

.track-area {
  position: relative;
  margin-bottom: 16px;
}

.track {
  position: relative;
  height: 48px;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--border);
  overflow: hidden;
}

.track-line {
  position: absolute;
  top: 50%;
  left: 8px;
  right: 8px;
  height: 2px;
  background: var(--border);
  transform: translateY(-50%);
}

.car {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translate(-50%, -50%);
  font-size: 1.4rem;
  transition: left 0.08s linear;
  z-index: 2;
  filter: drop-shadow(0 0 4px currentColor);
}

.car.self {
  z-index: 3;
  font-size: 1.6rem;
}

.countdown-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 14, 20, 0.85);
  border-radius: 12px;
  font-size: 4rem;
  font-weight: 700;
  color: var(--accent);
  z-index: 10;
  pointer-events: none;
}

.countdown-overlay.hidden {
  display: none;
}

.passage-box {
  font-size: 1.1rem;
  line-height: 1.8;
  padding: 16px;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-bottom: 12px;
  min-height: 80px;
}

.passage-box .char {
  opacity: 0.35;
}

.passage-box .char.correct {
  opacity: 1;
  color: var(--accent);
}

.passage-box .char.error {
  opacity: 1;
  color: var(--error);
  background: rgba(255, 71, 87, 0.15);
}

.passage-box .char.current {
  opacity: 1;
  background: rgba(57, 255, 20, 0.2);
  border-bottom: 2px solid var(--accent);
}

.typing-input {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
}

.typing-input:focus {
  outline: none;
  border-color: var(--accent);
}

.typing-input:disabled {
  opacity: 0.5;
}

.stats-row {
  display: flex;
  gap: 24px;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 12px;
}

.stats-row strong {
  color: var(--text);
  font-weight: 600;
}

.results {
  text-align: center;
  padding: 24px;
}

.results h3 {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 1.5rem;
}

.result-row {
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 8px;
  font-size: 0.9rem;
}

.log {
  font-size: 0.7rem;
  color: var(--muted);
  max-height: 100px;
  overflow-y: auto;
  margin-top: 12px;
  padding: 8px;
  background: var(--bg);
  border-radius: 6px;
}

.hidden {
  display: none !important;
}

.transport-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.65rem;
  color: var(--muted);
  margin-top: 8px;
}

.transport-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warn);
}

.transport-badge.datagram::before {
  background: var(--accent);
}

.pack-picker {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.pack-picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.pack-picker-header h3 {
  margin: 0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 500;
}

.pack-picker-header input {
  flex: 1;
  max-width: 220px;
  font: inherit;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text);
}

.pack-tree {
  max-height: 240px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  background: var(--bg);
}

.pack-tree-pack {
  font-size: 0.75rem;
  color: var(--accent);
  margin: 8px 0 4px;
  font-weight: 600;
}

.pack-tree-node {
  display: block;
  width: 100%;
  text-align: left;
  font: inherit;
  font-size: 0.8rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--text);
  padding: 6px 8px 6px 20px;
  cursor: pointer;
}

.pack-tree-node.folder {
  color: var(--muted);
  cursor: default;
  padding-left: 8px;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.pack-tree-node.leaf:hover {
  border-color: var(--border);
  background: rgba(57, 255, 20, 0.05);
}

.pack-tree-node.leaf.selected {
  border-color: var(--accent-dim);
  background: rgba(57, 255, 20, 0.12);
  color: var(--accent);
}

.pack-tree-node .meta {
  color: var(--muted);
  font-size: 0.68rem;
  margin-left: 6px;
}

.pack-preview {
  margin: 10px 0 0;
  font-size: 0.75rem;
  color: var(--muted);
  min-height: 1.2em;
}

.pack-label {
  margin: 0 0 12px;
  font-size: 0.8rem;
  color: var(--accent);
}

.invite-lede {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.85rem;
}

.invite-foot {
  margin: 14px 0 0;
  font-size: 0.8rem;
}

.invite-foot a {
  color: var(--accent);
}

.invite-link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.invite-link-input {
  flex: 1;
  min-width: 200px;
  font: inherit;
  font-size: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--muted);
}

.invite-link-row button {
  font: inherit;
  font-size: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  color: var(--text);
  cursor: pointer;
}

.invite-link-row button:hover {
  border-color: var(--accent-dim);
  color: var(--accent);
}

.lobby-settings {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.settings-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 8px;
}

.settings-select {
  width: 100%;
  max-width: 320px;
  font: inherit;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
}

.settings-help {
  margin: 8px 0 0;
  font-size: 0.75rem;
  color: var(--muted);
  max-width: 520px;
}

.passage-box.flash-error {
  animation: error-flash 0.35s ease;
}

@keyframes error-flash {
  0% {
    border-color: var(--error);
    box-shadow: 0 0 0 2px rgba(255, 71, 87, 0.25);
  }
  100% {
    border-color: var(--border);
    box-shadow: none;
  }
}