/* ─── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #1a1a2e;
  --bg2: #16213e;
  --surface: #0f3460;
  --accent: #e94560;
  --accent2: #4a90d9;
  --text: #eaeaea;
  --text-dim: #8899aa;
  --success: #2ecc71;
  --warning: #f39c12;
  --danger: #e74c3c;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

html, body {
  width: 100%; height: 100%;
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}

/* ─── Login Screen ─────────────────────────────────────────────────────────── */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.login-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.login-logo {
  font-size: 48px;
  text-align: center;
  margin-bottom: 12px;
}

.login-card h1 {
  text-align: center;
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.subtitle {
  text-align: center;
  color: var(--text-dim);
  font-size: 14px;
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label, .seed-section label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input, .seed-section textarea {
  width: 100%;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  color: var(--text);
  padding: 10px 14px;
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus, .seed-section textarea:focus {
  border-color: var(--accent2);
}

.seed-section {
  margin-bottom: 20px;
}

.seed-section textarea {
  resize: none;
  font-family: 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.5;
}

.seed-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.seed-hint {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 8px;
  line-height: 1.4;
}

/* ─── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 18px;
  transition: all 0.15s;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent2);
  color: #fff;
}
.btn-primary:hover { background: #357abd; transform: translateY(-1px); }

.btn-secondary {
  background: rgba(255,255,255,0.1);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.15);
}
.btn-secondary:hover { background: rgba(255,255,255,0.15); }

#btn-join {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  margin-top: 8px;
}

.error-msg {
  color: var(--danger);
  font-size: 13px;
  margin-top: 12px;
  text-align: center;
}

/* ─── Game Container ───────────────────────────────────────────────────────── */
#game-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

#phaser-container {
  width: 100%;
  height: 100%;
}

#phaser-container canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* ─── HUD ──────────────────────────────────────────────────────────────────── */
#hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

#hud-top {
  position: absolute;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(to bottom, rgba(0,0,0,0.7) 0%, transparent 100%);
  pointer-events: none;
}

#player-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#hud-name {
  font-weight: 700;
  font-size: 15px;
}

#hud-room {
  font-size: 12px;
  color: var(--accent2);
}

#hud-controls {
  display: flex;
  gap: 8px;
  pointer-events: all;
}

.hud-btn {
  background: rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  width: 40px; height: 40px;
  font-size: 18px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hud-btn:hover { background: rgba(255,255,255,0.15); }
.hud-btn.danger:hover { background: var(--danger); }
.hud-btn.muted { background: var(--danger); }

/* ─── Chat Panel ───────────────────────────────────────────────────────────── */
#chat-panel {
  position: absolute;
  bottom: 16px;
  left: 16px;
  width: 320px;
  background: rgba(15, 20, 40, 0.9);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  overflow: hidden;
  pointer-events: all;
  backdrop-filter: blur(8px);
}

#chat-messages {
  height: 200px;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  scrollbar-width: thin;
}

.chat-msg {
  font-size: 13px;
  line-height: 1.4;
}

.chat-msg .msg-author {
  font-weight: 700;
  color: var(--accent2);
  margin-right: 6px;
}

.chat-msg .msg-text {
  color: var(--text);
}

.chat-msg.system {
  color: var(--text-dim);
  font-style: italic;
  font-size: 12px;
}

#chat-input-row {
  display: flex;
  gap: 8px;
  padding: 8px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

#chat-input {
  flex: 1;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 10px;
  font-size: 13px;
  font-family: inherit;
  outline: none;
}

#chat-input:focus { border-color: var(--accent2); }

#btn-send {
  padding: 7px 14px;
  font-size: 13px;
}

/* ─── Action Hint ──────────────────────────────────────────────────────────── */
#action-hint {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.75);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  pointer-events: none;
  animation: fadeIn 0.2s ease;
  white-space: nowrap;
}

/* ─── Knock Notification ───────────────────────────────────────────────────── */
#knock-notification {
  position: absolute;
  top: 70px;
  right: 16px;
  background: rgba(15, 20, 40, 0.95);
  border: 1px solid var(--warning);
  border-radius: 12px;
  padding: 16px;
  width: 280px;
  pointer-events: all;
  animation: slideIn 0.3s ease;
  backdrop-filter: blur(8px);
}

.knock-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#knock-message {
  font-size: 14px;
  line-height: 1.4;
  color: var(--text);
}

.knock-actions {
  display: flex;
  gap: 8px;
}

.knock-actions .btn {
  flex: 1;
  padding: 8px;
}

/* ─── Players Panel ────────────────────────────────────────────────────────── */
#players-panel {
  position: absolute;
  top: 64px;
  right: 16px;
  background: rgba(15, 20, 40, 0.85);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 12px;
  min-width: 160px;
  pointer-events: none;
  backdrop-filter: blur(6px);
}

.panel-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

#players-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.player-entry {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.player-avatar-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.player-entry .player-room {
  font-size: 11px;
  color: var(--text-dim);
  margin-left: auto;
}

.player-speaking-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 1s infinite;
  flex-shrink: 0;
  display: none;
}

.player-speaking-dot.active { display: block; }

/* ─── Animations ───────────────────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

/* ─── Scrollbar ────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 2px; }

/* ─── Controls info ────────────────────────────────────────────────────────── */
#controls-info {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: rgba(0,0,0,0.5);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 11px;
  color: var(--text-dim);
  pointer-events: none;
  line-height: 1.6;
}