:root{--bg: #1b1a2e;--panel: #2a2844;--panel-light: #3a3860;--accent: #f2c14e;--accent-dark: #c99a2e;--text: #f0eefa;--text-dim: #b7b4d6;font-family:MS Gothic,Yu Gothic,Hiragino Kaku Gothic ProN,monospace,sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background:var(--bg);color:var(--text);overflow:hidden;image-rendering:pixelated}#app{position:relative;width:100%;height:100dvh;max-width:480px;margin:0 auto;overflow:hidden;border-left:2px solid var(--panel-light);border-right:2px solid var(--panel-light)}.screen{width:100%;height:100%;display:flex;flex-direction:column;padding:16px}h1,h2{margin:0 0 12px}p{line-height:1.6}.btn{border:2px solid var(--accent-dark);background:var(--panel-light);color:var(--text);padding:14px 18px;font-size:16px;border-radius:4px;cursor:pointer;min-height:48px;margin-top:8px}.btn-primary{background:var(--accent);color:#24221a;font-weight:700}.btn-secondary{background:transparent}.btn-action{flex:1;font-size:13px;padding:10px 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