*{box-sizing:border-box}:root{--win-bg: #008080;--win-surface: #c0c0c0;--win-text: #000;--win-highlight: #fff;--win-shadow: #808080;--win-dark: #0a0a0a;--win-title-bg: linear-gradient(90deg, #000080, #1084d0);--win-title-text: #fff;--win-input-bg: #fff;--win-accent: #000080;--win-font: "MS Sans Serif", "Segoe UI", Tahoma, sans-serif}body{margin:0;padding:8px;background:var(--win-bg);font-family:var(--win-font);font-size:11px;color:var(--win-text);overflow:hidden}.win-window{background:var(--win-surface);box-shadow:inset -1px -1px var(--win-dark),inset 1px 1px var(--win-highlight),inset -2px -2px var(--win-shadow),inset 2px 2px #dfdfdf}.win-title{background:var(--win-title-bg);color:var(--win-title-text);padding:2px 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4px;gap:4px}.win-btn{min-width:14px;height:13px;font-size:8px;padding:0 3px}}