:root {
  color-scheme: light dark;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  --accent: #0b84f3;
  --todo: #ffb347;
}

body {
  margin: 0;
  background: #111;
  color: #f5f5f5;
}

.site-header,
.site-footer {
  background: #1b1b1b;
  padding: 1rem 2rem;
}

.logo {
  margin: 0;
}

.tagline {
  margin: 0.25rem 0 1rem;
  color: #aaa;
}

.menu {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.menu a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

.menu a:hover {
  color: var(--accent);
}

.menu a.todo {
  opacity: 0.7;
}

.todo-pill {
  background: var(--todo);
  color: #000;
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  margin-left: 0.35rem;
}

main {
  padding: 2rem;
}

.hero,
.roadmap,
.todo-card,
.snake-arena {
  background: #1f1f1f;
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 10px 40px rgb(0 0 0 / 0.2);
}

.snake-arena {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  align-items: start;
}

.player-form {
  margin-bottom: 1rem;
}

.player-form label {
  display: block;
  margin-bottom: 0.3rem;
}

.form-row {
  display: flex;
  gap: 0.5rem;
}

.form-row input {
  flex: 1;
  padding: 0.6rem;
  border-radius: 8px;
  border: 1px solid #444;
  background: #111;
  color: #fff;
}

.form-row button {
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

.player-list {
  list-style: none;
  padding: 0;
  border: 1px solid #333;
  border-radius: 8px;
}

.player-list li {
  padding: 0.4rem 0.7rem;
  border-bottom: 1px solid #333;
}

.player-list li:last-child {
  border-bottom: none;
}

.player-list li.you {
  color: var(--accent);
  font-weight: 700;
}

.control-hint {
  color: #cfcfcf;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

#status-banner {
  min-height: 1.2rem;
  margin-top: 0.8rem;
  color: var(--todo);
  font-weight: 600;
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

#status-banner.show {
  opacity: 1;
}

.arena-preview {
  text-align: center;
}

#arena {
  width: 100%;
  height: auto;
  background: #050505;
  border: 2px solid #333;
  border-radius: 6px;
}

.todo-note {
  color: #ffdf8c;
  font-style: italic;
}

.site-footer {
  text-align: center;
  color: #aaa;
  font-size: 0.9rem;
}