:root{--bg-primary: #121212;--header-bg: #1a1a1a;--section-bg: #1a1a1a;--input-bg: #2a2a2a;--input-container-bg: #1a1a1a;--hover-bg: #333333;--border-color: #333333;--text-primary: #ffffff;--text-secondary: #a0a0a0;--accent-color: #3b82f6;--accent-hover: #2563eb;--focus-color: rgba(59, 130, 246, .5);--message-bg-user: #3b82f6;--message-bg-other: #2a2a2a;--voice-bg: rgba(59, 130, 246, .15);--waveform-inactive: rgba(255, 255, 255, .3);--avatar-bg: #4a5568;--scrollbar-thumb: #444444;--scrollbar-thumb-hover: #555555}*,*:before,*:after{box-sizing:border-box}html{font-size:16px}@media(min-width:1200px){html{font-size:18px}}@media(min-width:1600px){html{font-size:20px}}body{margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}:focus-visible{outline:3px solid var(--focus-color);outline-offset:2px}:focus:not(:focus-visible){outline:none}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}*{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) transparent}::selection{background:var(--accent-color);color:#fff}a{color:var(--accent-color);text-decoration:none}a:hover{text-decoration:underline}button,input,textarea{font-family:inherit}