:root {
    /* Light theme */
    --header-bg: #fff;
    --header-text: #1DAA61;
    --file-input-bg: #ffffff;
    --file-input-hover: #bbffae;
    --file-input-button-bg: #D9FDD3;
    --file-input-button-border: #AECAA9;
    --file-input-button-font: #15603E;
    --chat-bg: #f1f9ff;
    --chat-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --bubble-sent-bg: #DCF8C6;
    --bubble-received-bg: #ffffff;
    --bubble-border: #e0e0e0;
    --system-bubble-bg: #f0f2f5;
    --system-bubble-text: #54656f;
    --timestamp-text: #667781;
    --scrollbar-thumb: #888;
    --scrollbar-thumb-hover: #555;
    --body-bg: #f0f2f5;
    --text-color: #111b21;
    --image-bubble-bg: #e3f2fd;
    --image-bubble-border: #90caf9;
    --image-text-color: #111b21;
    --audio-bubble-bg: #f3e5f5;
    --audio-bubble-border: #ce93d8;
    --audio-text-color: #111b21;
    --sticker-bubble-bg: #fff3e0;
    --sticker-bubble-border: #ffcc80;
    --sticker-text-color: #111b21;

    --gif-bubble-bg: #ffcdcd;
    --gif-bubble-border: #ff8989;
    --gif-text-color: #111b21;

    --video-bubble-bg: #e0ffe2;
    --video-bubble-border: #80ff9c;
    --video-text-color: #111b21;
  }
  
  [data-theme="dark"] {
    /* Dark theme */
    --header-bg: #161717;
    --header-text: #ffffff;
    --file-input-bg: #161717;
    --file-input-hover: #205343;
    --file-input-button-bg: #103529;
    --file-input-button-border: #284A3F;
    --file-input-button-font: #D9FDD3;
    --chat-bg: #161717;
    --chat-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    --bubble-sent-bg: #144D37;
    --bubble-received-bg: #242626;
    --bubble-border: #161717;
    --system-bubble-bg: #2A3942;
    --system-bubble-text: #ffffff;
    --timestamp-text: #A1B8AF;
    --scrollbar-thumb: #555;
    --scrollbar-thumb-hover: #777;
    --body-bg: #1D1F1F;
    --text-color: #E1E9EC;
    --image-bubble-bg: #1D1E1E;
    --image-bubble-border: #9bd2ff;
    --image-text-color: #9bd2ff;
    --audio-bubble-bg: #1D1E1E;
    --audio-bubble-border: #f3adff;
    --audio-text-color: #f3adff;
    --sticker-bubble-bg: #1D1E1E;
    --sticker-bubble-border: #ffd493;
    --sticker-text-color: #ffd493;

    --gif-bubble-bg: #1D1E1E;
    --gif-bubble-border: #ff8989;
    --gif-text-color: #ff8989;
    --video-bubble-bg: #1D1E1E;
    --video-bubble-border: #80ff9c;
    --video-text-color: #80ff9c;
  }
  
  /* Base styles */
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--body-bg);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  /* Header styles */
  .header {
    background-color: var(--header-bg);
    color: var(--header-text);
    padding: 0px 16px; /* Adjust padding to move elements up or down */
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1;
    display: flex;
    align-items: center; /* Center items vertically */
    justify-content: space-between; /* Space out the title and button */
    height: 50px; /* Adjust height if needed */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  }
  
  .header h1 {
    font-size: 25px;
    margin: 0;
    font-weight: 500;
  }
  
/* Theme toggle container */
.theme-toggle-container {
    display: flex;
    align-items: center;
    gap: 10px; /* Space between toggle and text */
  }
  
  /* Hide the default checkbox */
  #theme-toggle {
    display: none;
  }
  
  /* Toggle label (the switch background) */
  .theme-toggle-label {
    position: relative;
    display: inline-block;
    width: 60px; /* Width of the toggle */
    height: 30px; /* Height of the toggle */
    background-color: #d2ecff; /* Bright yellow background for light theme */
    border-radius: 15px; /* Rounded corners */
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  
  /* Slider (the circle that moves) */
  .theme-toggle-slider {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 26px; /* Size of the slider */
    height: 26px; /* Size of the slider */
    border-radius: 50%; /* Make it circular */
    transition: transform 0.3s ease;
  }
  
  /* Emoji inside the toggle */
  .theme-toggle-emoji {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    transition: opacity 0.3s ease;
  }
  
  /* Sun emoji (visible in light theme) */
  .theme-toggle-emoji.sun {
    left: 5px; /* Position on the left */
    opacity: 1; /* Visible by default */
  }
  
  /* Moon emoji (visible in dark theme) */
  .theme-toggle-emoji.moon {
    right: 5px; /* Position on the right */
    opacity: 0; /* Hidden by default */
  }
  
  /* When the toggle is checked (dark theme) */
  #theme-toggle:checked + .theme-toggle-label {
    background-color: #1F2C34; /* Dark background for dark theme */
  }
  
  #theme-toggle:checked + .theme-toggle-label .theme-toggle-slider {
    transform: translateX(30px); /* Move the slider to the right */
  }
  
  /* Hide sun and show moon in dark theme */
  #theme-toggle:checked + .theme-toggle-label .theme-toggle-emoji.sun {
    opacity: 0; /* Hide sun */
  }
  
  #theme-toggle:checked + .theme-toggle-label .theme-toggle-emoji.moon {
    opacity: 1; /* Show moon */
  }
  
  /* File input container */
  .file-input-container {
    background-color: var(--file-input-bg);
    padding: 10px;
    text-align: center;
    position: fixed;
    top: 42px;
    left: 0;
    right: 0;
    z-index: 1;
    border-bottom: 1px solid var(--bubble-border);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  }
  
  #file-input {
    display: none;
  }
  
  .file-input-label {
    background-color: var(--file-input-button-bg);
    color: var(--file-input-button-font);
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    border: 1px solid var(--file-input-button-border);
    font-size: 14px;
    display: inline-block;
    transition: background-color 0.3s ease;
  }
  
  .file-input-label:hover {
    background-color: var(--file-input-hover);
  }
  
  /* Chat container */
  #chat-container {
    width: 100%;
    max-width: 800px;
    margin: 120px auto 0;
    padding: 15px 20px;
    box-sizing: border-box;
    background-color: var(--chat-bg);
    height: calc(100vh - 120px);
    overflow-y: auto;
    border-radius: 10px;
    box-shadow: var(--chat-shadow);
  }
  
  /* Message styles */
  .message {
    margin: 7px 0;
    display: flex;
    flex-direction: column;
  }
  
  .receiver {
    align-items: flex-end;
  }
  
  .sender {
    align-items: flex-start;
  }
  
  .bubble {
    padding: 6px 10px;
    border-radius: 15px;
    max-width: 70%;
    position: relative;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    font-size: 14px;
    line-height: 1.4;
    color: var(--text-color);
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: normal;
  }
  
  /* Message types */
  .receiver .bubble {
    background-color: var(--bubble-sent-bg);
    border-bottom-right-radius: 5px;
  }
  
  .sender .bubble {
    background-color: var(--bubble-received-bg);
    border-bottom-left-radius: 5px;
    border: 1px solid var(--bubble-border);
  }
  
  /* Image, Audio, Sticker bubbles */
  .image-bubble {
    background-color: var(--image-bubble-bg) !important;
    border: 1px solid var(--image-bubble-border) !important;
    color: var(--image-text-color) !important;
}
  
  .audio-bubble {
    background-color: var(--audio-bubble-bg) !important;
    border: 1px solid var(--audio-bubble-border) !important;
    color: var(--audio-text-color) !important;  
}
  
  .sticker-bubble {
    background-color: var(--sticker-bubble-bg) !important;
    border: 1px solid var(--sticker-bubble-border) !important;
    color: var(--sticker-text-color) !important;  
}
  
.gif-bubble {
    background-color: var(--gif-bubble-bg) !important;
    border: 1px solid var(--gif-bubble-border) !important;
    color: var(--gif-text-color) !important;  
}

.video-bubble {
    background-color: var(--video-bubble-bg) !important;
    border: 1px solid var(--video-bubble-border) !important;
    color: var(--video-text-color) !important;  
}




  /* System message styles */
  .system-message {
    display: flex;
    justify-content: center;
    margin: 20px 0;
    width: 100%;
  }
  
  .system-message .bubble {
    background-color: var(--system-bubble-bg);
    padding: 8px 15px;
    font-size: 12px;
    color: var(--system-bubble-text);
    border-radius: 20px;
    max-width: 80%;
    text-align: center;
    box-shadow: none;
    margin: 0 auto;
  }
  
  /* Timestamp */
  .timestamp {
    font-size: 11px;
    color: var(--timestamp-text);
    margin-top: 0px;
    line-height: 14px;
  }
  
  .receiver .timestamp {
    text-align: right;
  }
  
  .sender .timestamp {
    text-align: left;
  }
  
  /* Scrollbar styles */
  #chat-container::-webkit-scrollbar {
    width: 8px;
  }
  
  #chat-container::-webkit-scrollbar-track {
    background: var(--body-bg);
    border-radius: 4px;
  }
  
  #chat-container::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
  }
  
  #chat-container::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
  }
  
  /* Media indicators */
  .media-indicator {
    font-size: 12px;
    color: var(--timestamp-text);
    margin-top: 5px;
    display: flex;
    align-items: center;
  }
  
  .media-indicator img {
    width: 16px;
    height: 16px;
    margin-right: 5px;
  }
  
  /* Responsive design */
  @media (max-width: 768px) {
    #chat-container {
      padding: 15px;
      margin-top: 100px;
    }
  
    .header {
      height: 50px;
    }
  
    .header h1 {
      font-size: 16px;
    }
  
    .file-input-container {
      top: 50px;
    }
  
    .bubble {
      max-width: 80%;
    }
  }
  
  /* Hover effects */
  .image-bubble:hover,
  .audio-bubble:hover,
  .sticker-bubble:hover,
  .gif-bubble:hover,
  .video-bubble:hover {
    opacity: 0.9;
    transform: scale(1.02);
    transition: all 0.2s ease;
  }


  .swap-button {
    background-color: var(--header-bg);
    color: var(--file-input-button-font);
    border-radius: 25px;
    cursor: pointer;
    border: 1px solid var(--timestamp-text);
    font-size: 13px;
    display: inline-block;
    transition: background-color 0.3s ease;
    width: 115px; /* Width of the toggle */
    height: 30px; /* Height of the toggle */
  }
  
  .swap-button:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }

/* Add to style.css */
.loading-spinner {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top-color: #25D366;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  z-index: 1000;
}

[data-theme="dark"] .loading-spinner {
  border-top-color: #128C7E;
}

@keyframes spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Add blur effect during loading */
.loading-active #chat-container {
  filter: blur(2px);
  opacity: 0.5;
  transition: all 0.3s ease;
}