:root {
  --bg-main: #0b0b0d;
  --bg-panel: #151518;
  --bg-panel-alt: #1f1f24;
  --accent: #c9a86a;
  --accent-strong: #b33a3a;
  --text-main: #ededed;
  --text-muted: #9a9a9a;
  --border-soft: rgba(255, 255, 255, 0.08);
  --shadow-soft: 0 0 20px rgba(0, 0, 0, 0.7);
  --radius-panel: 10px;
  --transition-fast: 0.2s ease-out;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #1b1b22 0, #050507 60%);
  color: var(--text-main);
}

/* Layout */

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  padding: 0.75rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(to right, #111118, #181820);
  border-bottom: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
}

.app-header .title {
  font-size: 1.3rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.app-header .room-info span {
  margin-left: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.app-main {
  flex: 1;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 1.5rem 4rem;
}

.players-panel,
.game-panel {
  background: var(--bg-panel);
  border-radius: var(--radius-panel);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
  padding: 1rem;
}

.players-panel h2 {
  margin-top: 0;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

#players-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
}

#players-list li {
  padding: 0.4rem 0.3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.9rem;
}

/* Footer */

.app-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.5rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(to top, #101015, transparent);
  border-top: 1px solid var(--border-soft);
}

.app-footer span {
  margin-right: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

#ready-btn {
  background: var(--accent);
  color: #111;
  border: none;
  padding: 0.4rem 1.1rem;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

#ready-btn:hover {
  background: #e0c07a;
  transform: translateY(-1px);
}

/* Mobile tabs */

.mobile-tabs {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #111118;
  border-top: 1px solid var(--border-soft);
}

.mobile-tabs button {
  flex: 1;
  padding: 0.6rem 0;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.mobile-tabs button.active {
  color: var(--accent);
  border-top: 2px solid var(--accent);
}

/* Animations */

@keyframes glow-pulse {
  0% { box-shadow: 0 0 0 rgba(201, 168, 106, 0.0); }
  50% { box-shadow: 0 0 18px rgba(201, 168, 106, 0.5); }
  100% { box-shadow: 0 0 0 rgba(201, 168, 106, 0.0); }
}

.glow {
  animation: glow-pulse 1.6s infinite;
}

/* Responsive */

@media (max-width: 768px) {
  .app-main {
    grid-template-columns: 1fr;
    padding: 0.5rem 0.75rem 3.5rem;
  }

  .players-panel {
    display: none;
    position: fixed;
    bottom: 2.5rem;
    left: 0.5rem;
    right: 0.5rem;
    max-height: 50vh;
    overflow-y: auto;
    z-index: 10;
  }

  .players-panel.visible-mobile {
    display: block;
  }

  .mobile-tabs {
    display: flex;
  }

  .app-footer {
    padding-bottom: 2.5rem;
  }
}