:root{--ef-orange: #f89048;--ef-orange-hover: #ff9b56;--ef-orange-press: #e07a32;--ef-orange-ink: #a85310;--ef-orange-soft: #fbb380;--ef-orange-deep: #c96a26;--ef-teal-ink: #00738d;--ef-success-ink: #1d7757;--ef-warning-ink: #836413;--ef-error-ink: #c03737;--ef-violet-ink: #774fd3;--ef-orange-bg: rgba(248,144,72,.08);--ef-orange-bg-strong: rgba(248,144,72,.18);--ef-orange-border: rgba(248,144,72,.32);--ef-teal: #0090b0;--ef-teal-hover: #00a4c4;--ef-teal-press: #007d99;--ef-teal-soft: #4ab8cc;--ef-teal-deep: #006b85;--ef-teal-bg: rgba(0,144,176,.08);--ef-teal-bg-strong: rgba(0,144,176,.18);--ef-teal-border: rgba(0,144,176,.3);--ef-bg-0: #0d1115;--ef-bg-1: #131820;--ef-bg-2: #1a2129;--ef-bg-3: #232c36;--ef-bg-4: #2c3742;--ef-border: rgba(155,171,181,.12);--ef-border-strong: rgba(155,171,181,.22);--ef-text: #e8eef2;--ef-text-strong: #ffffff;--ef-text-muted: #9babb5;--ef-text-faint: #8794a1;--ef-success: #34d399;--ef-success-bg: rgba(52,211,153,.12);--ef-success-border: rgba(52,211,153,.32);--ef-warning: #fbbf24;--ef-warning-bg: rgba(251,191,36,.12);--ef-warning-border: rgba(251,191,36,.32);--ef-error: #ef4444;--ef-error-bg: rgba(239,68,68,.12);--ef-error-border: rgba(239,68,68,.32);--ef-elev-1: 0 1px 2px rgba(0,0,0,.4);--ef-elev-2: 0 4px 8px rgba(0,0,0,.35), 0 1px 2px rgba(0,0,0,.4);--ef-elev-3: 0 8px 16px rgba(0,0,0,.4), 0 2px 4px rgba(0,0,0,.45);--ef-glow-orange: 0 0 32px rgba(248,144,72,.3);--ef-glow-teal: 0 0 32px rgba(0,144,176,.3);--ef-r-sm: 8px;--ef-r-md: 12px;--ef-r-lg: 18px;--ef-r-xl: 24px;--ef-r-2xl: 32px;--ef-r-pill: 999px;--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-5: 24px;--sp-6: 32px;--sp-7: 48px;--sp-8: 64px;--sp-9: 96px;--t-fast: .12s;--t-base: .2s;--t-slow: .36s;--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--ff-display: "Rubik", system-ui, sans-serif;--ff-body: "Nunito", system-ui, sans-serif;--ff-mono: "JetBrains Mono", ui-monospace, monospace}[data-theme=light]{--ef-bg-0: #f7f4ee;--ef-bg-1: #ffffff;--ef-bg-2: #f0ebe2;--ef-bg-3: #e4ddd0;--ef-bg-4: #d6ccba;--ef-border: rgba(58,58,58,.14);--ef-border-strong: rgba(58,58,58,.26);--ef-text: #2a2a2a;--ef-text-strong: #0d0d0d;--ef-text-muted: #5a5a5a;--ef-text-faint: #696969;--ef-elev-1: 0 1px 2px rgba(58,58,58,.06);--ef-elev-2: 0 4px 12px rgba(58,58,58,.08), 0 1px 2px rgba(58,58,58,.05);--ef-elev-3: 0 8px 24px rgba(58,58,58,.1), 0 2px 4px rgba(58,58,58,.06)}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100%}body{font-family:var(--ff-body);background:var(--ef-bg-0);color:var(--ef-text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3{font-family:var(--ff-display);color:var(--ef-text-strong);line-height:1.15}a{color:var(--ef-teal);text-decoration:none}a:hover{color:var(--ef-teal-hover)}button{font-family:var(--ff-body);cursor:pointer}.ef-tool-shell{display:grid;grid-template-columns:1fr;gap:1.25rem;max-width:1560px;margin:0 auto;padding:1rem clamp(.75rem,2vw,1.5rem) 3rem;align-items:start}.ef-tool-center{min-width:0}.ef-rail{display:flex;flex-direction:column;gap:1rem;min-width:0}.ef-rail--empty{display:none}.ef-edu-card{background:var(--ef-bg-1, #1b2436);border:1px solid var(--ef-border, rgba(217, 119, 87, .22));border-left:3px solid var(--ef-orange, #d97757);border-radius:var(--ef-r-lg, 14px);padding:1rem 1.1rem}.ef-edu-title{margin:0 0 .5rem;font-family:var(--ff-display, inherit);font-size:1rem;color:var(--ef-text-strong, #e2e8f0);line-height:1.3}.ef-edu-p{overflow-wrap:anywhere;margin:0 0 .6rem;font-size:.86rem;line-height:1.55;color:var(--ef-text-muted, #94a3b8)}.ef-edu-p:last-child{margin-bottom:0}.ef-edu-card--svivaema{padding:0}.ef-edu-summary{display:flex;align-items:center;justify-content:space-between;gap:.75rem;min-height:2.75rem;padding:1rem 1.1rem;cursor:pointer;list-style:none;border-radius:var(--ef-r-lg, 14px);-webkit-tap-highlight-color:transparent}.ef-edu-summary::-webkit-details-marker{display:none}.ef-edu-summary:focus-visible{outline:2px solid var(--ef-orange, #d97757);outline-offset:-2px}.ef-edu-summary .ef-edu-title{margin:0}.ef-edu-summary:after{content:"";flex:none;width:.5rem;height:.5rem;margin-top:-.25rem;border-right:2px solid var(--ef-orange, #d97757);border-bottom:2px solid var(--ef-orange, #d97757);transform:rotate(45deg);transition:transform .15s ease}.ef-edu-card--svivaema[open]>.ef-edu-summary{padding-bottom:.5rem}.ef-edu-card--svivaema[open]>.ef-edu-summary:after{margin-top:.25rem;transform:rotate(-135deg)}.ef-edu-body{padding:0 1.1rem 1rem}@media(prefers-reduced-motion:reduce){.ef-edu-summary:after{transition:none}}@media(min-width:1280px){.ef-tool-shell{grid-template-columns:minmax(220px,1fr) minmax(0,780px) minmax(220px,1fr);gap:1.5rem}.ef-rail--left{grid-column:1;grid-row:1}.ef-tool-center{grid-column:2;grid-row:1}.ef-rail--right{grid-column:3;grid-row:1}.ef-rail{position:sticky;top:1rem;max-height:calc(100vh - 2rem);overflow-y:auto;scrollbar-width:thin}.ef-rail::-webkit-scrollbar{width:6px}.ef-rail::-webkit-scrollbar-thumb{background:#d977574d;border-radius:99px}}@media(max-width:1279px){.ef-rail{flex-direction:column}}