* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  overflow: hidden;
  background: #0f1117;
  color: #e8eaed;
}

.hidden {
  display: none !important;
}

#auth-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f1117 0%, #1a1f2e 50%, #0f1117 100%);
  z-index: 100;
}

#menu-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  z-index: 100;
  pointer-events: none;
}

.auth-card {
  background: rgba(26, 31, 46, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 36px;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.auth-card h1 {
  font-size: 1.8rem;
  margin-bottom: 8px;
  color: #4fc3f7;
}

.auth-card p {
  color: #9aa0a6;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.auth-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.auth-tab {
  flex: 1;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.25);
  color: #bdc1c6;
  cursor: pointer;
  font-size: 0.9rem;
}

.auth-tab.active {
  background: rgba(79, 195, 247, 0.2);
  border-color: #4fc3f7;
  color: #fff;
}

.auth-form {
  text-align: left;
}

.auth-form label {
  display: block;
  margin: 10px 0 6px;
  font-size: 0.85rem;
  color: #bdc1c6;
}

.auth-form input {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.3);
  color: #fff;
  font-size: 0.95rem;
  outline: none;
  margin-bottom: 4px;
}

.auth-form input:focus {
  border-color: #4fc3f7;
}

.auth-form .btn-primary {
  width: 100%;
  margin-top: 16px;
}

.auth-error {
  color: #ff8a80;
  font-size: 0.85rem;
  margin-bottom: 12px;
  text-align: left;
  padding: 10px 12px;
  background: rgba(255, 82, 82, 0.12);
  border-radius: 8px;
  border: 1px solid rgba(255, 82, 82, 0.25);
}

.welcome-user {
  margin-bottom: 16px !important;
  color: #e8eaed !important;
}

.welcome-user strong {
  color: #4fc3f7;
}

.btn-logout {
  margin-top: 8px;
}

.menu-card {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 40px;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: none;
  pointer-events: auto;
}

.menu-card h1 {
  font-size: 1.8rem;
  margin-bottom: 8px;
  color: #4fc3f7;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.85);
}

.menu-card p {
  color: #9aa0a6;
  margin-bottom: 24px;
  font-size: 0.9rem;
}

#menu-screen .welcome-user {
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.85);
}

#menu-screen #play-btn {
  background: linear-gradient(135deg, #0288d1, #4fc3f7);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

#menu-screen .btn-secondary {
  background: rgba(26, 31, 46, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.menu-card label {
  display: block;
  text-align: left;
  margin-bottom: 6px;
  font-size: 0.85rem;
  color: #bdc1c6;
}

#nickname-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.3);
  color: #fff;
  font-size: 1rem;
  margin-bottom: 16px;
  outline: none;
}

#nickname-input:focus {
  border-color: #4fc3f7;
}

#play-btn {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #0288d1, #4fc3f7);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

#play-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79, 195, 247, 0.3);
}

.controls-info {
  margin-top: 28px;
  text-align: left;
}

.controls-info h3 {
  font-size: 0.9rem;
  color: #9aa0a6;
  margin-bottom: 10px;
}

.controls-info ul {
  list-style: none;
  font-size: 0.82rem;
  color: #bdc1c6;
}

.controls-info li {
  margin-bottom: 6px;
}

kbd {
  display: inline-block;
  padding: 2px 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.8rem;
  margin-right: 4px;
}

#game-ui {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
}

#crosshair {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 24px;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 300;
  text-shadow: 0 0 4px rgba(0, 0, 0, 0.8);
  pointer-events: none;
}

#hud-top {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

#player-info {
  background: rgba(0, 0, 0, 0.5);
  padding: 10px 16px;
  border-radius: 8px;
  backdrop-filter: blur(8px);
  font-size: 0.9rem;
}

#my-nickname {
  font-weight: 600;
  color: #4fc3f7;
  margin-right: 12px;
}

.ping {
  color: #81c784;
  font-size: 0.85rem;
}

.ping.high {
  color: #ffb74d;
}

.ping.bad {
  color: #e57373;
}

#player-list {
  background: rgba(0, 0, 0, 0.5);
  padding: 10px 16px;
  border-radius: 8px;
  backdrop-filter: blur(8px);
  min-width: 180px;
  max-height: 200px;
  overflow-y: auto;
  font-size: 0.82rem;
}

#player-list h4 {
  font-size: 0.75rem;
  color: #9aa0a6;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.player-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.player-list-item .name {
  color: #e8eaed;
}

.player-list-item .name.me {
  color: #4fc3f7;
  font-weight: 600;
}

.player-list-item .ping-val {
  color: #81c784;
  font-size: 0.78rem;
}

#chat-container {
  position: absolute;
  bottom: 16px;
  left: 16px;
  width: 360px;
  pointer-events: auto;
}

#chat-messages {
  background: rgba(0, 0, 0, 0.45);
  border-radius: 8px 8px 0 0;
  padding: 10px 12px;
  max-height: 180px;
  overflow-y: auto;
  font-size: 0.82rem;
  backdrop-filter: blur(6px);
}

.chat-msg {
  margin-bottom: 4px;
  line-height: 1.4;
  word-break: break-word;
}

.chat-msg .author {
  color: #4fc3f7;
  font-weight: 600;
  margin-right: 6px;
}

.chat-msg .text {
  color: #e8eaed;
}

#chat-input {
  width: 100%;
  padding: 10px 12px;
  border: none;
  border-radius: 0 0 8px 8px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 0.85rem;
  outline: none;
  display: none;
}

#chat-input.active {
  display: block;
}

#status-bar {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: rgba(0, 0, 0, 0.5);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.78rem;
  color: #9aa0a6;
}

canvas {
  display: block;
}

.btn-secondary {
  width: 100%;
  padding: 12px;
  margin-top: 10px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: #e8eaed;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(79, 195, 247, 0.4);
}

.btn-primary {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #0288d1, #4fc3f7);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79, 195, 247, 0.3);
}

.btn-danger {
  width: 100%;
  padding: 12px;
  margin-top: 10px;
  background: rgba(229, 115, 115, 0.15);
  border: 1px solid rgba(229, 115, 115, 0.35);
  border-radius: 8px;
  color: #e57373;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-danger:hover {
  background: rgba(229, 115, 115, 0.25);
}

#camera-mode-badge {
  position: absolute;
  top: 50%;
  right: 20px;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #4fc3f7;
  letter-spacing: 1px;
  pointer-events: none;
}

.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  z-index: 200;
  pointer-events: auto;
}

.overlay-card {
  background: rgba(26, 31, 46, 0.97);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 36px 40px;
  max-width: 340px;
  width: 90%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.overlay-card h2 {
  font-size: 1.6rem;
  color: #4fc3f7;
  margin-bottom: 6px;
}

.overlay-sub {
  color: #9aa0a6;
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.overlay-card .btn-primary {
  margin-bottom: 0;
}

.settings-card {
  background: rgba(26, 31, 46, 0.97);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 28px 32px;
  max-width: 560px;
  width: 92%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.settings-card h2 {
  font-size: 1.4rem;
  color: #4fc3f7;
  margin-bottom: 20px;
  text-align: center;
}

.settings-section {
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.settings-section:last-of-type {
  border-bottom: none;
}

.settings-section h3 {
  font-size: 0.9rem;
  color: #bdc1c6;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hint {
  font-size: 0.78rem;
  color: #9aa0a6;
  margin-top: 8px;
}

.camera-toggle-group {
  display: flex;
  gap: 10px;
}

.camera-btn {
  flex: 1;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: #bdc1c6;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.15s;
}

.camera-btn:hover {
  border-color: rgba(79, 195, 247, 0.4);
}

.camera-btn.active {
  background: rgba(79, 195, 247, 0.15);
  border-color: #4fc3f7;
  color: #4fc3f7;
  font-weight: 600;
}

.toggle-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.toggle-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 8px;
  font-size: 0.85rem;
  color: #e8eaed;
}

.toggle-item label {
  cursor: pointer;
  flex: 1;
}

.toggle-switch {
  position: relative;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 22px;
  cursor: pointer;
  transition: background 0.2s;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}

.toggle-switch input:checked + .toggle-slider {
  background: #4fc3f7;
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(18px);
}

.keybind-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.keybind-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 8px;
  font-size: 0.85rem;
}

.keybind-row span {
  color: #e8eaed;
}

.keybind-btn {
  min-width: 100px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  color: #4fc3f7;
  font-family: monospace;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.15s;
}

.keybind-btn:hover {
  border-color: #4fc3f7;
}

.keybind-btn.listening {
  background: rgba(79, 195, 247, 0.2);
  border-color: #4fc3f7;
  color: #fff;
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.settings-actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

.settings-actions button {
  flex: 1;
  margin-top: 0 !important;
}

#mobile-controls {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 15;
  touch-action: none;
}

#mobile-controls.active {
  pointer-events: auto;
}

#joystick-zone {
  position: absolute;
  left: 16px;
  bottom: 24px;
  width: 140px;
  height: 140px;
  pointer-events: auto;
  touch-action: none;
}

#joystick-base {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.35);
  border: 2px solid rgba(79, 195, 247, 0.35);
  backdrop-filter: blur(4px);
}

#joystick-knob {
  position: absolute;
  width: 56px;
  height: 56px;
  left: 50%;
  top: 50%;
  margin-left: -28px;
  margin-top: -28px;
  border-radius: 50%;
  background: rgba(79, 195, 247, 0.75);
  border: 2px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  transition: background 0.1s;
}

#joystick-zone.active #joystick-knob {
  background: rgba(79, 195, 247, 0.95);
}

#look-zone {
  position: absolute;
  right: 0;
  top: 0;
  width: 55%;
  height: 100%;
  pointer-events: auto;
  touch-action: none;
}

#mobile-buttons {
  position: absolute;
  right: 16px;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: auto;
  touch-action: manipulation;
}

.mob-btn {
  min-width: 64px;
  height: 64px;
  padding: 0 14px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.45);
  color: #e8eaed;
  font-size: 0.72rem;
  font-weight: 600;
  backdrop-filter: blur(6px);
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  transition: background 0.1s, transform 0.1s;
}

.mob-btn:active,
.mob-btn.pressed {
  background: rgba(79, 195, 247, 0.35);
  border-color: rgba(79, 195, 247, 0.7);
  transform: scale(0.94);
}

.mob-btn-jump {
  width: 72px;
  height: 72px;
  font-size: 0.78rem;
  background: rgba(2, 136, 209, 0.45);
  border-color: rgba(79, 195, 247, 0.5);
}

.mob-btn-run.pressed {
  background: rgba(255, 183, 77, 0.35);
  border-color: rgba(255, 183, 77, 0.7);
}

.mob-btn-voice {
  background: rgba(156, 39, 176, 0.4);
  border-color: rgba(206, 147, 216, 0.55);
}

.mob-btn-voice.pressed {
  background: rgba(233, 30, 99, 0.45);
  border-color: rgba(244, 143, 177, 0.85);
  animation: voice-pulse-btn 0.8s infinite;
}

@keyframes voice-pulse-btn {
  0%, 100% { box-shadow: 0 0 0 0 rgba(244, 143, 177, 0.5); }
  50% { box-shadow: 0 0 0 8px rgba(244, 143, 177, 0); }
}

#voice-recording-indicator {
  position: absolute;
  top: 72px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(156, 39, 176, 0.85);
  color: #fff;
  padding: 10px 18px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  z-index: 20;
}

#voice-recording-indicator .voice-pulse {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #fff;
  animation: voice-dot 1s infinite;
}

@keyframes voice-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

body.mobile-mode #chat-container {
  width: calc(100% - 32px);
  max-width: 420px;
}

body.mobile-mode #hud-top {
  font-size: 0.8rem;
}

body.mobile-mode #player-list {
  max-height: 120px;
  min-width: 140px;
}

body.mobile-mode #status-bar {
  display: none;
}

@media (min-width: 1025px) and (hover: hover) {
  #mobile-controls {
    display: none !important;
  }
}