:root{--color-primary:#05b34d;--color-primary-hover:#04a045;--color-primary-active:#038c3c;--color-primary-soft:#05b34d14;--color-primary-glow:#05b34d40;--color-accent:#f2b91c;--color-accent-hover:#e0a815;--color-accent-soft:#f2b91c1a;--color-dark:#181f25;--color-dark-soft:#181f250a;--color-bg:#f7faf8;--color-bg-elevated:#fff;--color-bg-sunken:#f0f4f1;--color-surface:#fff;--color-surface-hover:#f8fbf9;--color-surface-active:#f0f5f2;--color-border:#e3eae5;--color-border-strong:#c8d6cd;--color-text:#131915;--color-text-secondary:#4a5851;--color-text-tertiary:#8a968f;--color-text-on-primary:#fff;--color-text-on-accent:#181f25;--color-success:#05b34d;--color-success-soft:#05b34d1a;--color-warning:#f2b91c;--color-warning-soft:#f2b91c1f;--color-danger:#dc4445;--color-danger-soft:#dc44451a;--color-info:#3a8ee6;--color-info-soft:#3a8ee61a;--gradient-primary:linear-gradient(135deg, #05b34d 0%, #04a045 50%, #038c3c 100%);--gradient-hero:linear-gradient(135deg, #f7faf8 0%, #e9fbf1 50%, #f0f9f4 100%);--gradient-card:linear-gradient(135deg, #fff 0%, #fafcfb 100%);--gradient-accent:linear-gradient(135deg, #f2b91c 0%, #e0a815 100%);--gradient-dark:linear-gradient(135deg, #181f25 0%, #232c35 100%);--glass-bg:#ffffffb8;--glass-border:#fff9;--glass-blur:blur(20px);--space-0:0;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--space-20:80px;--space-24:96px;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--font-serif:"Georgia", "Times New Roman", serif;--font-mono:"SF Mono", "Cascadia Code", "Consolas", monospace;--fs-xs:11px;--fs-sm:13px;--fs-base:15px;--fs-md:16px;--fs-lg:18px;--fs-xl:22px;--fs-2xl:28px;--fs-3xl:36px;--fs-4xl:48px;--fs-5xl:64px;--lh-tight:1.15;--lh-snug:1.35;--lh-normal:1.5;--lh-relaxed:1.7;--fw-regular:400;--fw-medium:500;--fw-semibold:600;--fw-bold:700;--fw-extrabold:800;--radius-xs:6px;--radius-sm:10px;--radius-md:14px;--radius-lg:20px;--radius-xl:28px;--radius-2xl:36px;--radius-full:9999px;--shadow-xs:0 1px 2px #181f250a;--shadow-sm:0 2px 4px #181f250d, 0 1px 2px #181f2508;--shadow-md:0 6px 16px #181f2514, 0 2px 6px #181f250a;--shadow-lg:0 16px 40px #181f251a, 0 4px 12px #181f250d;--shadow-xl:0 32px 64px #181f251f, 0 8px 24px #181f250f;--shadow-2xl:0 48px 96px #181f2529, 0 16px 32px #181f2514;--shadow-primary:0 8px 24px #05b34d40;--shadow-accent:0 8px 24px #f2b91c40;--ease-out:cubic-bezier(.16, 1, .3, 1);--ease-in-out:cubic-bezier(.65, 0, .35, 1);--ease-spring:cubic-bezier(.34, 1.56, .64, 1);--dur-fast:.12s;--dur-base:.22s;--dur-slow:.4s;--dur-slower:.6s;--header-h:60px;--tabbar-h:68px;--fab-size:56px;--max-w-mobile:480px;--max-w-tablet:768px;--max-w-desktop:1200px;--max-w-wide:1440px;--z-base:1;--z-header:100;--z-tabbar:100;--z-fab:90;--z-sheet:200;--z-modal:300;--z-toast:400}[data-theme=dark]{--color-bg:#0f1418;--color-bg-elevated:#1a2027;--color-bg-sunken:#0a0e11;--color-surface:#1a2027;--color-surface-hover:#232b33;--color-surface-active:#2a333c;--color-border:#2a333c;--color-border-strong:#3a4651;--color-text:#e8f0ec;--color-text-secondary:#a8b5ac;--color-text-tertiary:#6a766e;--color-text-on-primary:#fff;--color-text-on-accent:#181f25;--color-primary-soft:#05b34d26;--color-primary-glow:#05b34d4d;--color-accent-soft:#f2b91c26;--color-dark-soft:#0003;--color-success-soft:#05b34d26;--color-warning-soft:#f2b91c26;--color-danger-soft:#dc444526;--color-info-soft:#3a8ee626;--gradient-hero:linear-gradient(135deg, #0f1418 0%, #131a15 50%, #0f1712 100%);--gradient-card:linear-gradient(135deg, #1a2027 0%, #161c22 100%);--glass-bg:#1a2027b8;--glass-border:#ffffff0f;--shadow-xs:0 1px 2px #0000004d;--shadow-sm:0 2px 4px #0000004d, 0 1px 2px #0003;--shadow-md:0 6px 16px #00000059, 0 2px 6px #0003;--shadow-lg:0 16px 40px #00000073, 0 4px 12px #00000040;--shadow-xl:0 32px 64px #00000080, 0 8px 24px #0000004d;--shadow-2xl:0 48px 96px #0009, 0 16px 32px #00000059;--shadow-primary:0 8px 24px #05b34d4d;--shadow-accent:0 8px 24px #f2b91c33}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;text-rendering:optimizelegibility;scroll-behavior:smooth}body{font-family:var(--font-sans);font-size:var(--fs-base);line-height:var(--lh-normal);color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100dvh;overflow-x:hidden}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer;background:0 0;border:none}a{color:var(--color-primary);transition:color var(--dur-fast) var(--ease-out);text-decoration:none}a:hover{color:var(--color-primary-hover)}img,svg,video{max-width:100%;display:block}ul,ol{list-style:none}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;border-radius:var(--radius-xs)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--color-border-strong);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-tertiary)}.safe-top{padding-top:env(safe-area-inset-top)}.safe-bottom{padding-bottom:env(safe-area-inset-bottom)}.glass{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border)}.gradient-text{background:var(--gradient-primary);-webkit-text-fill-color:transparent;color:#0000;-webkit-background-clip:text;background-clip:text}.high-contrast{--color-text:#000;--color-text-secondary:#1a1a1a;--color-text-tertiary:#333;--color-border:#666;--color-border-strong:#444;--color-primary:#006620;--color-primary-hover:#004d18;--color-primary-soft:#00662026}[data-theme=dark].high-contrast{--color-text:#fff;--color-text-secondary:#e0e0e0;--color-text-tertiary:#ccc;--color-border:#999;--color-border-strong:#bbb;--color-bg:#000;--color-surface:#1a1a1a}.dyslexia-font{--font-sans:"Comic Sans MS", "OpenDyslexic", "Lexie Readable", sans-serif;letter-spacing:.05em;word-spacing:.15em}.large-text{--fs-xs:13px;--fs-sm:15px;--fs-base:18px;--fs-md:19px;--fs-lg:22px;--fs-xl:26px;--fs-2xl:32px;--fs-3xl:42px;--fs-4xl:56px}.switch{flex-shrink:0;width:44px;height:24px;display:inline-block;position:relative}.switch input{opacity:0;width:0;height:0}.switch .slider{cursor:pointer;background:var(--color-border);transition:var(--dur-fast) var(--ease-out);border-radius:24px;position:absolute;inset:0}.switch .slider:before{content:"";width:18px;height:18px;transition:var(--dur-fast) var(--ease-out);background:#fff;border-radius:50%;position:absolute;bottom:3px;left:3px}.switch input:checked+.slider{background:var(--color-primary)}.switch input:checked+.slider:before{transform:translate(20px)}.access-row{justify-content:space-between;align-items:center;gap:var(--space-3);padding:var(--space-3) 0;display:flex}.access-row:not(:last-child){border-bottom:1px solid var(--color-border)}.rf-md-content{font-size:var(--fs-base);line-height:var(--lh-relaxed);color:var(--color-text);word-wrap:break-word}.rf-md-content>:first-child{margin-top:0}.rf-md-content>:last-child{margin-bottom:0}.rf-md-content h1{font-size:var(--fs-2xl);font-weight:var(--fw-extrabold);margin:var(--space-5) 0 var(--space-2);letter-spacing:-.02em}.rf-md-content h2{font-size:var(--fs-xl);font-weight:var(--fw-bold);margin:var(--space-5) 0 var(--space-2);letter-spacing:-.01em}.rf-md-content h3{font-size:var(--fs-lg);font-weight:var(--fw-bold);margin:var(--space-4) 0 var(--space-2)}.rf-md-content h4{font-size:var(--fs-md);font-weight:var(--fw-semibold);margin:var(--space-3) 0 var(--space-2)}.rf-md-content p{margin:0 0 var(--space-3)}.rf-md-content ul,.rf-md-content ol{margin:0 0 var(--space-3) var(--space-5)}.rf-md-content li{margin-bottom:var(--space-1)}.rf-md-content ul.rf-md-task-list{margin-left:0;padding-left:0;list-style:none}.rf-md-content ul.rf-md-task-list li{align-items:flex-start;gap:6px;display:flex}.rf-md-content ul.rf-md-task-list li input[type=checkbox]{margin-top:4px}.rf-md-content.rf-md-task-done{color:var(--color-text-tertiary);text-decoration:line-through}.rf-md-content blockquote{border-left:3px solid var(--color-primary);padding:var(--space-2) var(--space-4);margin:var(--space-3) 0;background:var(--color-primary-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--color-text);font-style:italic}.rf-md-content code{border-radius:var(--radius-xs);font-family:var(--font-mono);background:#0000000f;padding:1px 5px;font-size:.9em}[data-theme=dark] .rf-md-content code{background:#ffffff14}.rf-md-content pre.rf-md-code-block{background:var(--color-bg-sunken);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--space-3) var(--space-4);margin:var(--space-3) 0;overflow-x:auto}.rf-md-content pre.rf-md-code-block code{font-size:var(--fs-sm);color:var(--color-text);background:0 0;padding:0}.rf-md-content a{color:var(--color-primary);text-decoration:underline;text-decoration-color:var(--color-primary-soft);text-underline-offset:2px;font-weight:600}.rf-md-content a:hover{text-decoration-color:var(--color-primary)}.rf-md-content img.rf-md-img{border-radius:var(--radius-sm);max-width:100%;height:auto;margin:var(--space-3) 0}.rf-md-content hr{border:none;border-top:1px solid var(--color-border);margin:var(--space-4) 0}.rf-md-content table.rf-md-table{border-collapse:collapse;width:100%;margin:var(--space-3) 0;font-size:var(--fs-sm);border:1px solid var(--color-border);border-radius:var(--radius-sm);overflow:hidden}.rf-md-content table.rf-md-table th,.rf-md-content table.rf-md-table td{border-bottom:1px solid var(--color-border);border-right:1px solid var(--color-border);padding:8px 12px}.rf-md-content table.rf-md-table th{background:var(--color-bg-sunken);font-weight:var(--fw-semibold)}.rf-md-content table.rf-md-table tr:last-child td{border-bottom:none}.rf-md-content table.rf-md-table td:last-child,.rf-md-content table.rf-md-table th:last-child{border-right:none}.rf-md-content .rf-md-latex-inline{border-radius:var(--radius-xs);background:#3a8ee61a;padding:1px 4px;font-family:Cambria Math,STIX,serif;font-style:italic}.rf-md-content .rf-md-latex-block{padding:var(--space-3);border-radius:var(--radius-sm);margin:var(--space-3) 0;text-align:center;font-family:Cambria Math,STIX,serif;font-size:var(--fs-md);background:#3a8ee614}.rf-md-content .rf-md-chart-block{margin:var(--space-3) 0;text-align:center}.rf-md-content .rf-md-chart-block pre{text-align:left}.rf-md-content .rf-md-chart-svg{max-width:100%;height:auto}.rf-md-content .rf-md-chart-placeholder{padding:var(--space-3);background:var(--color-bg-sunken);border:2px dashed var(--color-border);border-radius:var(--radius-sm);margin:var(--space-3) 0;color:var(--color-text-tertiary);font-size:var(--fs-sm);flex-direction:column;align-items:center;gap:6px;display:flex}.rf-md-empty{color:var(--color-text-tertiary);font-style:italic}.chat-msg .cm-body.rf-md-content{font-size:var(--fs-sm)}.chat-msg .cm-body.rf-md-content p{margin:0 0 var(--space-1)}.chat-msg .cm-body.rf-md-content p:last-child{margin-bottom:0}.chat-msg .cm-body.rf-md-content pre.rf-md-code-block{padding:var(--space-2) var(--space-3);font-size:var(--fs-xs)}.rf-preloader{z-index:99999;background:var(--color-bg,#f7faf8);opacity:1;visibility:visible;pointer-events:auto;justify-content:center;align-items:center;transition:opacity .3s ease-out,visibility .3s ease-out;display:flex;position:fixed;inset:0}.rf-preloader.hidden{opacity:0;visibility:hidden;pointer-events:none}.rf-preloader-spinner{border:4px solid #05b34d26;border-top-color:#05b34d;border-radius:50%;width:48px;height:48px;animation:.7s ease-in-out infinite rf-preloader-spin}@keyframes rf-preloader-spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.rf-preloader-spinner{border-top-color:#05b34d8c;animation:none}.rf-preloader{transition:opacity .3s ease-out,visibility .3s ease-out}}