*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{height:100%;font-size:14px;line-height:1.5}body{height:100%;min-height:100vh;overflow:hidden}button{cursor:pointer;border:none;background:none;font:inherit;color:inherit}input,textarea,select{font:inherit;color:inherit}ul,ol{list-style:none}a{color:inherit;text-decoration:none}dialog{border:none;padding:0;background:transparent}dialog::backdrop{background:#000000b3}:root{--color-bg: #0f1117;--color-surface: #1a1d27;--color-surface-elevated: #22263a;--color-border: #2e3250;--color-accent: #4f8ef7;--color-accent-dim: #2d5ab0;--color-success: #3fb950;--color-warning: #e3b341;--color-error: #f85149;--color-text: #e6edf3;--color-text-dim: #7d8590;--color-text-muted: #484f58;--color-active-line: #1f3a5f;--color-active-line-border: #4f8ef7;--color-sent-flash: #1a3a1f;--header-height: 44px;--footer-height: 52px;--tab-height: 36px;--font-mono: "Cascadia Code", "Fira Code", "Consolas", "Menlo", monospace;--font-ui: -apple-system, 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var(--color-border);border-radius:8px;font-size:15px;line-height:1.6;word-break:break-word}.audio-caption-final{color:var(--color-text)}.audio-caption-interim{color:var(--color-text-muted);font-style:italic}.audio-caption-placeholder{color:var(--color-text-muted);font-style:italic;font-size:13px}