:root{color-scheme:light;--bg: #f5f4f1;--surface: #ffffff;--border: #e2ddd8;--text: #1c1917;--text-muted: #6f6862;--accent: #2563eb;--accent-hover: #1d4ed8;--accent-subtle: rgba(37, 99, 235, 0.04);--accent-glow: rgba(37, 99, 235, 0.12);--dot-active: #22c55e;--dot-active-glow: rgba(34, 197, 94, 0.2);--dot-waiting: #f59e0b;--dot-waiting-glow: rgba(245, 158, 11, 0.2);--success-bg: #f0fdf4;--success-border: #86efac;--success-text: #166534;--error-bg: #fef2f2;--error-border: #fca5a5;--error-text: #991b1b}@media(prefers-color-scheme: dark){:root:not([data-theme=light]){color-scheme:dark;--bg: #0c0a09;--surface: #1c1917;--border: #44403c;--text: #fafaf9;--text-muted: #a8a29e;--accent: #3b82f6;--accent-hover: #60a5fa;--accent-subtle: rgba(59, 130, 246, 0.04);--accent-glow: rgba(59, 130, 246, 0.12);--dot-active: #22c55e;--dot-active-glow: rgba(34, 197, 94, 0.2);--dot-waiting: #f59e0b;--dot-waiting-glow: rgba(245, 158, 11, 0.2);--success-bg: #052e16;--success-border: #166534;--success-text: #86efac;--error-bg: #450a0a;--error-border: #991b1b;--error-text: #fca5a5}}[data-theme=dark]{color-scheme:dark;--bg: #0c0a09;--surface: #1c1917;--border: #44403c;--text: #fafaf9;--text-muted: #a8a29e;--accent: #3b82f6;--accent-hover: #60a5fa;--accent-subtle: rgba(59, 130, 246, 0.04);--accent-glow: rgba(59, 130, 246, 0.12);--dot-active: #22c55e;--dot-active-glow: rgba(34, 197, 94, 0.2);--dot-waiting: #f59e0b;--dot-waiting-glow: rgba(245, 158, 11, 0.2);--success-bg: #052e16;--success-border: #166534;--success-text: #86efac;--error-bg: #450a0a;--error-border: #991b1b;--error-text: #fca5a5}html.ereader{--accent: #000000;--accent-hover: #333333;--accent-subtle: #eeeeee;--accent-glow: transparent;--border: #999999;--text-muted: #333333;--dot-active: #000000;--dot-active-glow: transparent;--dot-waiting: #888888;--dot-waiting-glow: transparent}*,*::before,*::after{box-sizing:border-box}button{cursor:pointer;touch-action:manipulation;font-family:inherit}button:focus-visible{outline:2px solid #2563eb;outline:2px solid var(--accent);outline-offset:2px}body{margin:0;background:#f5f4f1;background:var(--bg);color:#1c1917;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:#2563eb;color:var(--accent)}a:hover{color:#1d4ed8;color:var(--accent-hover)}a:focus-visible{outline:2px solid #2563eb;outline:2px solid var(--accent);outline-offset:2px}.wrapper{max-width:640px;margin:0 auto;padding:2.5rem 1.25rem 5rem}.page-header{position:relative;text-align:center;margin-bottom:2rem}.page-header h1{font-size:1.6rem;font-weight:700;letter-spacing:-0.02em;margin:0 0 .3rem}.page-header p{color:#6f6862;color:var(--text-muted);margin:0;font-size:.9rem}.page-header .btn-theme{position:absolute;top:0;right:0}.card{background:#fff;background:var(--surface);border:1px solid #e2ddd8;border:1px solid var(--border);border-radius:14px;box-shadow:0 1px 3px rgba(0,0,0,.07),0 1px 2px rgba(0,0,0,.04);margin-bottom:1rem;padding:.75rem 1.5rem 1.5rem}.card-title{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:#6f6862;color:var(--text-muted);margin:0 0 1.1rem}.btn-theme{display:-webkit-inline-flex;display:inline-flex;width:2.75rem;height:2.75rem;padding:.875rem;border:1px solid #e2ddd8;border:1px solid var(--border);border-radius:6px;background:#fff;background:var(--surface);-webkit-flex-shrink:0;flex-shrink:0}.btn-theme svg{width:1rem;height:1rem;display:block}.btn-theme{color:#6f6862;color:var(--text-muted);transition:border-color .12s,color .12s}.btn-theme:hover{border-color:#2563eb;border-color:var(--accent);color:#2563eb;color:var(--accent)}.btn-theme .icon-sun{display:none}[data-theme=dark] .btn-theme .icon-sun{display:block}[data-theme=dark] .btn-theme .icon-moon{display:none}html.ereader .btn-theme{display:none}html.ereader .card{box-shadow:none;border-color:#999;border-color:var(--border)}html.ereader .instructions p{color:#333;color:var(--text-muted)}html.ereader a{color:#000;color:var(--accent)}html.ereader a:focus-visible{outline:none}html.ereader *,html.ereader *::before,html.ereader *::after{-webkit-animation:none !important;animation:none !important}@media(prefers-reduced-motion: reduce){*,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}}.hidden{display:none}.instructions{margin-top:1rem}.instructions p{font-size:.875rem;color:#6f6862;color:var(--text-muted);line-height:1.65;margin:0 0 .6rem}.instructions p:last-child{margin-bottom:0}.page-footer{display:-webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column}.page-footer>*+*{margin-top:.25rem}.page-footer{text-align:center;color:#6f6862;color:var(--text-muted);font-size:.8rem;margin-top:2rem;padding-top:1.25rem;border-top:1px solid #e2ddd8;border-top:1px solid var(--border);line-height:1.8}