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linear-gradient(135deg, var(--navy-800), var(--navy-700));--user-text: #ffffff;--warn-bg: #fff6ec;--warn-border: #f7d3b3;--error-bg: #fdeeee;--error-border: #f1b9b9;--error-text: #8d1f1f;--focus: #1d6fe0;--shadow-sm: 0 1px 2px rgba(11, 27, 59, .06), 0 1px 3px rgba(11, 27, 59, .08);--shadow-md: 0 6px 20px rgba(11, 27, 59, .1);--shadow-lg: 0 24px 60px rgba(11, 27, 59, .22);--radius-sm: 10px;--radius-md: 16px;--radius-lg: 24px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--font: "Heebo", "Assistant", system-ui, -apple-system, "Segoe UI", sans-serif}@media (prefers-color-scheme: dark){:root{--bg: #070f24;--bg-sky: #0d1d42;--bg-glow: rgba(242, 106, 33, .1);--surface: #101c38;--surface-2: #17264a;--text: #e8edf8;--text-muted: #9aa8c6;--border: #25365e;--brand: #9db8f2;--accent-text: #ff8a4c;--user-bg: linear-gradient(135deg, #1b3a78, #254a94);--warn-bg: #2a1d14;--warn-border: #5a3a22;--error-bg: #2d1518;--error-border: #6b2a30;--error-text: #ffb4b4;--focus: #6aa5ff;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 6px 20px rgba(0, 0, 0, .4);--shadow-lg: 0 24px 60px rgba(0, 0, 0, .6)}}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font);font-size:calc(16px * var(--text-scale, 1));line-height:1.6;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-wrap:anywhere}button,textarea{font:inherit;color:inherit}button{cursor:pointer}:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.icon-btn{display:inline-grid;place-items:center;width:40px;height:40px;border:1px solid transparent;border-radius:12px;background:transparent;color:var(--text-muted);transition:background .15s,color .15s,border-color .15s}.icon-btn:hover{background:var(--surface-2);color:var(--text)}.icon-btn svg{width:20px;height:20px}@media (max-width: 640px){.icon-btn{width:44px;height:44px}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}:root[data-contrast=high]{--bg: #000000;--bg-sky: #000000;--bg-glow: transparent;--surface: #000000;--surface-2: #000000;--text: #ffffff;--text-muted: #f0f0f0;--border: #ffffff;--brand: #ffe600;--accent: #ffa64d;--accent-text: #ffa64d;--user-bg: #ffe600;--user-text: #000000;--warn-bg: #000000;--warn-border: #ffe600;--error-bg: #000000;--error-border: #ff8a8a;--error-text: #ffd0d0;--focus: #00e5ff;--shadow-sm: none;--shadow-md: none;--shadow-lg: 0 0 0 2px #ffffff}:root[data-contrast=high] a{text-decoration:underline}:root[data-contrast=high] .answer,:root[data-contrast=high] .bubble,:root[data-contrast=high] textarea,:root[data-contrast=high] .a11y__panel,:root[data-contrast=high] .stats__card,:root[data-contrast=high] .ring,:root[data-contrast=high] .stats__panel{outline:2px solid var(--border);outline-offset:-2px}:root[data-contrast=high] .header__link{color:var(--accent);border-color:var(--accent);background:#000}:root[data-motion=reduce] *,:root[data-motion=reduce] *:before,:root[data-motion=reduce] *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}::highlight(read-along){background-color:#ffd9b8;color:#000;text-decoration:underline;text-decoration-thickness:2px}:root[data-contrast=high] ::highlight(read-along){background-color:#ffe600;color:#000}.skip-link{position:fixed;inset-inline-start:8px;top:-80px;z-index:100;padding:10px 16px;border:2px solid var(--brand);border-radius:10px;background:var(--surface);color:var(--brand);font-weight:700}.skip-link:focus{top:8px}:root[data-contrast=high] .input__send{background:#ffe600;color:#000;box-shadow:none}