body {
    background: #222;
    color: #fff;
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 0;
    transition: background 0.5s, color 0.5s;
}
body.light {
    background: #f7f7f7;
    color: #222;
}

h1 {
    margin: 20px 0 10px 0;
    font-size: 2em;
}

#controls-bar {
    margin-bottom: 10px;
}

#mode-btn, #theme-btn, #settings-btn {
    margin: 0 10px;
    font-size: 1em;
    padding: 7px 18px;
    border-radius: 7px;
    border: none;
    background: #444;
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 2px 6px #0007;
    transition: background 0.2s;
}
#mode-btn:hover, #theme-btn:hover, #settings-btn:hover {
    background: #666;
}
body.light #mode-btn, 
body.light #theme-btn,
body.light #settings-btn {
    background: #eee;
    color: #222;
    box-shadow: 0 2px 6px #8883;
}
body.light #mode-btn:hover, 
body.light #theme-btn:hover,
body.light #settings-btn:hover {
    background: #e0e0e0;
}

#scoreboard-container {
    font-size: 2.2em;
    margin-bottom: 10px;
    font-weight: bold;
    letter-spacing: 10px;
    transition: transform 0.2s;
}

.score-divider {
    color: #888;
    margin: 0 20px;
}

#pong {
    background: #111;
    display: block;
    margin: 0 auto;
    border: 4px solid #fff;
    border-radius: 12px;
    box-shadow: 0 0 20px #000;
    cursor: pointer;
    touch-action: none;
    transition: background 0.5s, border 0.5s;
}
body.light #pong {
    background: #fff;
    border: 4px solid #444;
    box-shadow: 0 0 20px #aaa6;
}

#message {
    margin-top: 20px;
    font-size: 1.6em;
    color: #ffe066;
    min-height: 2.5em;
    font-weight: bold;
    transition: opacity 0.4s, color 0.5s;
}
body.light #message {
    color: #333;
}

#restart-btn {
    margin-top: 18px;
    font-size: 1.1em;
    padding: 12px 32px;
    border-radius: 8px;
    border: none;
    background: #444;
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 3px 10px #0007;
    transition: background 0.2s;
}
#restart-btn:hover {
    background: #666;
}
body.light #restart-btn {
    background: #eee;
    color: #222;
    box-shadow: 0 2px 6px #8883;
}
body.light #restart-btn:hover {
    background: #e0e0e0;
}

/* Modal Settings */
.modal {
  display: none;
  position: fixed;
  z-index: 99;
  left: 0; top: 0;
  width: 100vw;
  height: 100vh;
  overflow: auto;
  background: rgba(0,0,0,0.4);
}
.modal-content {
  background: #222;
  color: #fff;
  margin: 60px auto;
  padding: 24px 32px;
  border: 2px solid #888;
  border-radius: 14px;
  width: 340px;
  box-shadow: 0 0 20px #000c;
  position: relative;
  text-align: left;
}
body.light .modal-content {
  background: #fafafa;
  color: #111;
  border: 2px solid #ccc;
  box-shadow: 0 0 20px #8882;
}
.close {
  color: #aaa;
  position: absolute;
  top: 12px; right: 18px;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
}
.close:hover { color: #c00; }
.modal-content h2 {
  margin-top: 0;
}
.modal-content label {
  display: block;
  margin: 18px 0 0 0;
}
.modal-content input[type="number"] {
  width: 60px;
}
.modal-content input[type="range"] {
  width: 100px;
  vertical-align: middle;
}
.modal-content input[type="checkbox"] {
  vertical-align: middle;
  margin-right: 6px;
}
#apply-settings-btn {
  margin-top: 16px;
  padding: 8px 30px;
  background: #444;
  color: #fff;
  border-radius: 8px;
  border: none;
  font-weight: bold;
  cursor: pointer;
  font-size: 1em;
}
body.light #apply-settings-btn {
  background: #eee;
  color: #222;
}
#apply-settings-btn:hover {
  background: #666;
}
body.light #apply-settings-btn:hover {
  background: #e0e0e0;
}