:root{--ti-bg:#fafaf8;--ti-bg-warm:#f5f3ee;--ti-surface:#ffffff;--ti-surface-raised:#ffffff;--ti-border:#e8e4dd;--ti-border-subtle:#f0ede6;--ti-text-primary:#1a1814;--ti-text-secondary:#5c564a;--ti-text-tertiary:#8a8478;--ti-text-muted:#b0a99e;--ti-accent:#2d6a4f;--ti-accent-light:#40916c;--ti-accent-bg:#d8f3dc;--ti-accent-bg-subtle:#edf6ee;--ti-correct:#2d6a4f;--ti-correct-bg:#d8f3dc;--ti-wrong:#c1121f;--ti-wrong-bg:#ffe5e5;--ti-warning:#cc8b00;--ti-warning-bg:#fff8e1;--ti-proof-primary:rgba(45,106,79,0.15);--ti-proof-primary-border:rgba(45,106,79,0.4);--ti-proof-secondary:rgba(45,106,79,0.07);--ti-proof-secondary-border:rgba(45,106,79,0.2);--ti-ckb-text:#4a4540;--ti-ckb-bg:#f9f7f4;--ti-ckb-border:#e8e4dd;--ti-locked-bg:#f0ede6;--ti-locked-text:#8a8478;--ti-shadow-sm:0 1px 2px rgba(26,24,20,0.04);--ti-shadow-md:0 2px 8px rgba(26,24,20,0.06),0 1px 2px rgba(26,24,20,0.04);--ti-shadow-lg:0 4px 16px rgba(26,24,20,0.08),0 2px 4px rgba(26,24,20,0.04);--ti-shadow-glow:0 0 0 3px rgba(45,106,79,0.12);--ti-radius-sm:6px;--ti-radius-md:10px;--ti-radius-lg:14px;--ti-radius-xl:20px;--ti-space-xs:4px;--ti-space-sm:8px;--ti-space-md:16px;--ti-space-lg:24px;--ti-space-xl:32px;--ti-space-2xl:48px;--ti-font-body:"Source Serif 4","Georgia",serif;--ti-font-ui:"Inter",-apple-system,BlinkMacSystemFont,sans-serif;--ti-font-ckb:"Noto Sans Arabic","Segoe UI",sans-serif;--ti-font-mono:"JetBrains Mono","Fira Code",monospace;--ti-ease:cubic-bezier(0.4,0,0.2,1);--ti-duration:200ms;--ti-duration-slow:400ms;--ti-reader-max:720px;--ti-panel-width:420px;--ti-header-height:56px}[data-theme=dark]{--ti-bg:#131210;--ti-bg-warm:#1a1814;--ti-surface:#1e1c18;--ti-surface-raised:#252320;--ti-border:#333028;--ti-border-subtle:#2a2722;--ti-text-primary:#f0ede6;--ti-text-secondary:#a8a196;--ti-text-tertiary:#7a7368;--ti-text-muted:#5c564a;--ti-accent:#52b788;--ti-accent-light:#74c69d;--ti-accent-bg:rgba(82,183,136,0.12);--ti-accent-bg-subtle:rgba(82,183,136,0.06);--ti-correct:#52b788;--ti-correct-bg:rgba(82,183,136,0.12);--ti-wrong:#ff6b6b;--ti-wrong-bg:rgba(255,107,107,0.12);--ti-warning:#ffd166;--ti-warning-bg:rgba(255,209,102,0.12);--ti-proof-primary:rgba(82,183,136,0.12);--ti-proof-primary-border:rgba(82,183,136,0.35);--ti-proof-secondary:rgba(82,183,136,0.06);--ti-proof-secondary-border:rgba(82,183,136,0.15);--ti-ckb-text:#c8c0b4;--ti-ckb-bg:#1a1814;--ti-ckb-border:#333028;--ti-locked-bg:#1e1c18;--ti-locked-text:#5c564a;--ti-shadow-sm:0 1px 2px rgba(0,0,0,0.2);--ti-shadow-md:0 2px 8px rgba(0,0,0,0.3),0 1px 2px rgba(0,0,0,0.2);--ti-shadow-lg:0 4px 16px rgba(0,0,0,0.4),0 2px 4px rgba(0,0,0,0.2);--ti-shadow-glow:0 0 0 3px rgba(82,183,136,0.15)}.ti-route-root{min-height:100dvh;display:flex;flex-direction:column;font-family:var(--ti-font-ui);background:var(--ti-bg);color:var(--ti-text-primary);line-height:1.5;direction:ltr;text-align:left;padding-top:var(--ti-header-height)}.ti-route-root [data-protected-content],.ti-route-root [data-protected-content] *{-webkit-user-select:none;-moz-user-select:none;user-select:none;-webkit-touch-callout:none}.ti-header{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--ti-header-height);border-bottom:1px solid var(--ti-border);backdrop-filter:blur(12px);background:color-mix(in srgb,var(--ti-surface) 85%,transparent);display:flex;align-items:center;padding:0 var(--ti-space-md);gap:var(--ti-space-md)}.ti-header__back{display:none;align-items:center;justify-content:center;width:36px;height:36px;border:none;background:none;color:var(--ti-text-secondary);cursor:pointer;border-radius:var(--ti-radius-sm);transition:background var(--ti-duration) var(--ti-ease);flex-shrink:0}.ti-header__back:hover{background:var(--ti-bg-warm)}.ti-header__back svg{width:20px;height:20px}.ti-header__back.visible{display:flex}.ti-header__brand{display:flex;align-items:center;gap:var(--ti-space-sm);font-weight:600;font-size:15px;color:var(--ti-text-primary);letter-spacing:-.01em;flex-shrink:0}.ti-header__brand-mark{font-family:var(--public-logo-font,var(--ti-font-body));font-size:.7rem;font-weight:800;letter-spacing:.2em;color:var(--ti-text-secondary);text-transform:uppercase;text-decoration:none;direction:ltr;transition:color var(--ti-duration) 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svg{width:12px;height:12px;transition:transform var(--ti-duration) var(--ti-ease)}.ti-sentence__ckb-toggle.is-open svg{transform:rotate(180deg)}.ti-sentence__ckb{font-family:var(--ti-font-ckb);font-size:15px;line-height:1.8;color:var(--ti-ckb-text);direction:rtl;text-align:right;padding:var(--ti-space-sm) var(--ti-space-md);margin-top:var(--ti-space-xs);background:var(--ti-ckb-bg);border:1px solid var(--ti-ckb-border);border-radius:var(--ti-radius-sm);display:none;animation:ti-ckb-reveal .3s var(--ti-ease) forwards}.ti-sentence__ckb.visible{display:block}@keyframes ti-ckb-reveal{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.ti-ckb-global-toggle{display:flex;align-items:center;gap:var(--ti-space-sm);background:var(--ti-surface);border:1px solid var(--ti-border);border-radius:var(--ti-radius-md);padding:var(--ti-space-sm) var(--ti-space-md);font-size:13px;color:var(--ti-text-secondary);cursor:pointer;transition:all var(--ti-duration) 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