:root{--bg: #ffffff;--ink: #0d0d0d;--ink-alt: #1d1d1f;--text-secondary: #6e6e73;--text-body-soft: #4a4a4f;--text-tertiary: #737378;--text-muted-state: #6e6e73;--placeholder: #767676;--surface: #fafafa;--border: #ececec;--border-control: #e5e5e5;--border-button: #8e8e8e;--button-primary-hover: #333333;--button-secondary-hover-bg: #f5f5f5;--on-primary: #ffffff;--border-header: rgba(0, 0, 0, .07);--shadow-composer: rgba(0, 0, 0, .08);--shadow-dropdown: rgba(0, 0, 0, .12);--ring-drag: rgba(13, 13, 13, .08);--font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", system-ui, sans-serif;--font-mono: "SF Mono", ui-monospace, Consolas, monospace;--radius-focus: 6px;--radius-sm: 8px;--radius-item: 9px;--radius-md: 14px;--radius-lg: 18px;--radius-xl: 26px;--radius-full: 980px;--radius-circle: 50%;--header-height: 52px;--header-max: 1120px;--content-max: 900px;--text-max: 640px;--gutter: 24px;--gutter-mobile: 16px;--composer-height: 264px;--nav-gap: 30px}*,*:before,*:after{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--ink);font-family:var(--font-sans);letter-spacing:-.01em;-webkit-font-smoothing:antialiased}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:var(--radius-focus)}.header{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:var(--header-height);max-width:var(--header-max);margin:0 auto;padding:0 40px;border-bottom:1px solid var(--border-header)}.logo{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);font-weight:600;letter-spacing:-.02em;font-size:16px;justify-self:start}.nav{display:flex;gap:var(--nav-gap);justify-self:center}.nav a{color:var(--text-secondary);text-decoration:none;font-size:13.5px}.nav a:hover{color:var(--ink)}.lang{position:relative;justify-self:end}.lang 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button{display:flex;justify-content:space-between;width:100%;background:none;border:none;border-radius:var(--radius-item);padding:9px 12px;font:500 13.5px var(--font-sans);color:var(--ink);cursor:pointer;text-align:left}.dl-menu button:hover{background:var(--button-secondary-hover-bg)}.dl-ext{color:var(--text-tertiary);font-size:11.5px;font-weight:400}.tx-again{align-self:flex-end;margin-top:10px;color:var(--text-secondary);font-size:13.5px;text-decoration:underline dotted;text-underline-offset:4px;cursor:pointer}.composer-input{flex:1;border:none;outline:none;resize:none;background:transparent;font-family:var(--font-mono);font-size:14px;line-height:1.7;color:var(--ink);min-height:120px}.composer-input::placeholder{color:var(--placeholder)}.composer-actions{display:flex;justify-content:flex-end;gap:10px}.btn{display:inline-flex;align-items:center;gap:7px;border-radius:var(--radius-full);padding:8px 18px;font:500 13.5px 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