// Style source (SCSS) - variables & small helpers
$primary: #2b6cb0;
$accent: #f6ad55;
$bg1: #0f172a;
$bg2: #111827;
$card: rgba(255, 255, 255, 0.04);
$glass: rgba(255, 255, 255, 0.03);

* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  font-family:
    Inter,
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial;
  margin: 0;
  padding: 24px;
  background: linear-gradient(180deg, #0b1220 0%, #0f172a 60%);
  color: #e6eef8;
}

.page {
  max-width: 1100px;
  margin: 0 auto;
}

header h2 {
  margin: 0 0 12px 0;
  color: #fff;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.4);
}

.card {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.02),
    rgba(255, 255, 255, 0.01)
  );
  border: 1px solid rgba(255, 255, 255, 0.04);
  padding: 16px;
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(2, 6, 23, 0.6);
}

button {
  background: $primary;
  color: white;
  border: none;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}
button[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}
input[type="text"],
input[type="search"] {
  padding: 8px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: transparent;
  color: inherit;
}

a {
  color: $accent;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

#log {
  white-space: pre-wrap;
  border-radius: 8px;
  background: $glass;
  padding: 8px;
  height: 280px;
  overflow: auto;
  color: #dfeeff;
}

#board {
  width: 800px;
  height: 800px;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  border-radius: 6px;
  overflow: hidden;
  background-size: cover;
}

/* make board responsive on smaller screens */
@media (max-width: 900px) {
  #board {
    width: min(92vw, 680px);
    height: min(92vw, 680px);
  }
}

.muted {
  opacity: 0.8;
  color: #b9c6d9;
}

/* small helpers */
.controls {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* Chat / players list */
#players {
  margin: 6px 0;
  padding-left: 18px;
}

/* visually prominent copy button */
#copyInviteBtn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: #fff;
  padding: 6px 10px;
  border-radius: 8px;
}

/* host badge */
#youAreHost {
  background: rgba(255, 255, 255, 0.04);
  padding: 6px 8px;
  border-radius: 6px;
  margin-left: 6px;
}

/* layout helpers used from game.html */
.layout-row {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

/* board tweaks */
#board {
  border: 1px solid #333;
  position: relative;
  background-image: url("/assets/chess-pieces/boards/8x8_wood.svg");
  background-size: cover;
}

/* square cells and piece images (used by renderFen) */
.square {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.square img,
.piece {
  max-width: 78%;
  max-height: 78%;
  user-select: none;
}

/* basic checkerboard coloring */
.square.light {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.02),
    rgba(255, 255, 255, 0.01)
  );
}
.square.dark {
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0.12));
}
.square {
  border: 1px solid rgba(0, 0, 0, 0.06);
}

/* flipped board for black perspective */
#board.flipped {
  transform: rotate(180deg);
}
#board.flipped .square img {
  transform: rotate(180deg);
}

/* Lobby / hero styles - decorative and fun */
.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px;
  border-radius: 12px;
  margin-bottom: 18px;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.04);
  background: linear-gradient(
    135deg,
    rgba(43, 108, 176, 0.14),
    rgba(246, 173, 85, 0.06)
  );
}
.hero .title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.hero .subtitle {
  color: rgba(255, 255, 255, 0.85);
  margin-top: 6px;
  font-weight: 500;
}
.hero .decor {
  position: absolute;
  right: -80px;
  top: -60px;
  opacity: 0.06;
  width: 420px;
  height: 420px;
  filter: blur(6px);
  transform: rotate(20deg);
}

.card.lobby {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 14px;
}

/* buttons variants */
.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 8px 10px;
  border-radius: 8px;
  color: inherit;
}
.btn-cta {
  background: linear-gradient(90deg, #3b82f6, #60a5fa);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.18);
}

/* floating small piece icons */
.floating-piece {
  position: absolute;
  opacity: 0.06;
  width: 160px;
  height: 160px;
  pointer-events: none;
  transform: translate(-10%, -10%);
}

/* subtle button hover */
button:hover {
  transform: translateY(-3px);
  transition: all 180ms ease;
}

/* players area */
.players-list {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: flex;
  gap: 10px;
}
.players-list li {
  background: rgba(255, 255, 255, 0.02);
  padding: 6px 10px;
  border-radius: 8px;
}