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monospace);font-size:12.5px;padding:6px 12px;border-radius:999px;border:1px solid color-mix(in srgb,var(--accent-green) 45%,transparent);color:var(--accent-green);background:color-mix(in srgb,var(--accent-green) 8%,transparent);cursor:pointer;transition:background .14s,transform .14s}.tour-chip:hover{background:color-mix(in srgb,var(--accent-green) 18%,transparent);transform:translateY(-1px)}.tour-footer{display:flex;align-items:center;justify-content:space-between;margin-top:18px}.tour-dots{display:flex;gap:7px}.tour-dot{width:7px;height:7px;border-radius:50%;background:#8c96b44d;transition:background .15s,transform .15s}.tour-dot.on{background:var(--accent);transform:scale(1.25)}.tour-btn{min-width:84px;padding:8px 16px;border-radius:9px;font-size:13px;font-weight:700;cursor:pointer;border:1px solid var(--hairline);background:transparent;color:var(--fg-dim);transition:background .14s,color .14s}.tour-btn:hover{color:var(--fg);background:#ffffff0f}.tour-next{border-color:color-mix(in srgb,var(--accent) 55%,transparent);color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent)}.tour-next:hover{background:color-mix(in srgb,var(--accent) 22%,transparent);color:var(--accent)}.belt-chip{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;border:1px solid var(--hairline);background:transparent;color:var(--fg-dim);font-size:12px;font-weight:700;cursor:pointer;transition:background .14s,border-color .14s,color .14s}.belt-chip:hover{background:#ffffff0f;border-color:#788cc859}.belt-chip .belt-name{color:var(--belt-color, var(--fg))}.belt-chip svg{color:var(--belt-color, var(--fg-dim))}.belt-chip .belt-count{color:var(--fg-dim);font-weight:500}@media(max-width:760px){.belt-chip .belt-count{display:none}}.cards-host{width:100%;height:100%}.cards{height:100%;overflow-y:auto;padding:28px clamp(16px,5vw,64px) 48px;max-width:1080px;margin:0 auto}.cards-head{margin-bottom:18px}.cards-kicker{font-size:11px;font-weight:800;letter-spacing:.18em;color:var(--accent);margin-bottom:4px}.cards-title{margin:0 0 6px;font-size:26px;color:var(--fg)}.cards-sub{margin:0 0 14px;font-size:13px;color:var(--fg-dim);line-height:1.7}.cards-controls{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px}.cards-filter{appearance:none;background:#ffffff0a;border:1px solid var(--hairline);color:var(--fg);border-radius:9px;padding:7px 30px 7px 12px;font-size:12.5px;cursor:pointer;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%238a93ad' fill='none' stroke-width='1.6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;max-width:290px}.cards-toggle{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:9px;border:1px solid var(--hairline);background:transparent;color:var(--fg-dim);font-size:12.5px;font-weight:600;cursor:pointer;transition:background .14s,color .14s,border-color .14s}.cards-toggle:hover{background:#ffffff0f;color:var(--fg)}.cards-toggle.on{border-color:color-mix(in srgb,var(--accent-green) 55%,transparent);color:var(--accent-green);background:color-mix(in srgb,var(--accent-green) 10%,transparent)}.cards-mastered{display:inline-flex;align-items:center;gap:6px;margin-left:auto;color:var(--accent);font-size:12.5px;font-weight:700}.cards-progresswrap{display:flex;align-items:center;gap:10px}.cards-progress{flex:1;height:6px;border-radius:999px;background:#ffffff12;overflow:hidden}.cards-progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent-green),var(--accent-cyan, #18b3c7));transition:width .35s cubic-bezier(.22,1,.36,1)}.cards-progress-label{font-size:11.5px;color:var(--fg-dim);font-variant-numeric:tabular-nums}.cards-stage{position:relative;perspective:1400px;min-height:420px;margin-top:10px}.card{position:absolute;inset:0 auto auto 50%;transform:translate(-50%);width:min(640px,100%);border-radius:18px;border:1px solid rgba(120,140,200,.22);background:linear-gradient(180deg,#121623fa,#0a0d16fa);box-shadow:0 18px 50px #00000073;padding:22px 26px 18px}.card-back{height:380px;pointer-events:none;background:linear-gradient(180deg,#0e111ce6,#080a12e6)}.card-back1{transform:translate(-50%) translateY(12px) scale(.965);opacity:.7}.card-back2{transform:translate(-50%) translateY(24px) scale(.93);opacity:.4}.card-top{transition:transform .38s cubic-bezier(.22,1,.36,1),opacity .32s ease,box-shadow .3s ease,border-color .3s ease;will-change:transform,opacity}.card-enter{transform:translate(calc(-50% + 90px)) rotate(4deg) scale(.96);opacity:0}.card-fly-ok{transform:translate(-190%) rotate(-10deg);opacity:0}.card-fly-skip{transform:translate(-180%) rotate(-4deg) scale(.97);opacity:0}.card-ok{border-color:color-mix(in srgb,var(--accent-green) 70%,transparent);box-shadow:0 18px 50px #00000073,0 0 0 1px color-mix(in srgb,var(--accent-green) 45%,transparent),0 0 42px color-mix(in srgb,var(--accent-green) 28%,transparent)}.card-toprow{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card-cat{font-size:11px;font-weight:700;color:var(--accent-cyan, #18b3c7);border:1px solid color-mix(in srgb,var(--accent-cyan, #18b3c7) 40%,transparent);background:color-mix(in srgb,var(--accent-cyan, #18b3c7) 8%,transparent);padding:3px 10px;border-radius:999px;max-width:70%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-counter{font-size:11.5px;color:var(--fg-dim);font-variant-numeric:tabular-nums}.card-q{font-size:19px;font-weight:700;line-height:1.65;color:var(--fg);min-height:64px}.card-blank{height:18px}.card-hint{display:flex;align-items:center;gap:10px;margin-bottom:10px}.card-hint-label{font-size:12px;color:var(--fg-dim)}.card-hint-none{font-style:italic}.card-hint-args{font-family:var(--mono, monospace);font-size:14px;color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent);border:1px dashed color-mix(in srgb,var(--accent) 40%,transparent);padding:3px 10px;border-radius:7px}.card-answerrow{min-height:24px;margin-bottom:10px}.card-reveal{border:none;background:transparent;color:var(--fg-dim);font-size:12px;text-decoration:underline dotted;cursor:pointer;padding:0}.card-reveal:hover{color:var(--fg)}.card-answer{font-size:13px;color:var(--fg-dim)}.card-answer code{font-family:var(--mono, monospace);color:var(--accent-green);background:color-mix(in srgb,var(--accent-green) 9%,transparent);padding:2px 8px;border-radius:6px}.card-okbadge{position:absolute;top:16px;right:20px;display:flex;align-items:center;gap:6px;color:var(--accent-green);font-weight:800;font-size:14px;opacity:0;transform:scale(.6) rotate(-8deg);transition:opacity .22s ease,transform .3s cubic-bezier(.34,1.56,.64,1);pointer-events:none}.card-ok .card-okbadge{opacity:1;transform:scale(1) rotate(0)}.card-term{display:flex;align-items:center;gap:10px;border-radius:11px;border:1px solid rgba(120,140,200,.25);background:#04060c;padding:12px 14px;transition:border-color .2s,box-shadow .2s}.card-term:focus-within{border-color:color-mix(in srgb,var(--accent) 55%,transparent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 12%,transparent)}.card-term.term-ok{border-color:color-mix(in srgb,var(--accent-green) 70%,transparent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent-green) 16%,transparent)}.card-prompt{color:var(--accent-green);font-family:var(--mono, monospace);font-weight:700;font-size:15px}.card-input{flex:1;border:none;outline:none;background:transparent;color:var(--fg);font-family:var(--mono, monospace);font-size:15px;caret-color:var(--accent-green)}.card-input::placeholder{color:#8c96b466}@keyframes term-shake{0%,to{transform:translate(0)}20%{transform:translate(-7px)}40%{transform:translate(6px)}60%{transform:translate(-4px)}80%{transform:translate(3px)}}.term-shake{animation:term-shake .36s ease}.card-actions{display:flex;justify-content:flex-end;margin-top:10px}.card-skip{border:none;background:transparent;color:var(--fg-dim);font-size:12.5px;cursor:pointer;padding:4px 6px;border-radius:6px;transition:color .14s,background .14s}.card-skip:hover{color:var(--fg);background:#ffffff0f}.card-done{position:relative;inset:auto;transform:none;margin:0 auto;text-align:center;padding:44px 28px;transition:transform .38s cubic-bezier(.22,1,.36,1),opacity .32s ease}.card-done.card-enter{transform:translateY(14px);opacity:0}.card-done-icon{width:72px;height:72px;margin:0 auto 14px;display:flex;align-items:center;justify-content:center;border-radius:18px;color:var(--accent);background:color-mix(in srgb,var(--accent) 11%,transparent);border:1px solid color-mix(in srgb,var(--accent) 32%,transparent)}.card-done h2{margin:0 0 8px;color:var(--fg)}.card-done-sub{margin:0 0 18px;color:var(--fg-dim);font-size:13.5px}.card-done-actions{display:flex;gap:10px;justify-content:center}/**
 * Copyright (c) 2014 The xterm.js authors. All rights reserved.
 * Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)
 * https://github.com/chjj/term.js
 * @license MIT
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * Originally forked from (with the author's permission):
 *   Fabrice Bellard's javascript vt100 for jslinux:
 *   http://bellard.org/jslinux/
 *   Copyright (c) 2011 Fabrice Bellard
 *   The original design remains. The terminal itself
 *   has been extended to include xterm CSI codes, among
 *   other features.
 */.xterm{cursor:text;position:relative;user-select:none;-ms-user-select:none;-webkit-user-select:none}.xterm.focus,.xterm:focus{outline:none}.xterm .xterm-helpers{position:absolute;top:0;z-index:5}.xterm .xterm-helper-textarea{padding:0;border:0;margin:0;position:absolute;opacity:0;left:-9999em;top:0;width:0;height:0;z-index:-5;white-space:nowrap;overflow:hidden;resize:none}.xterm .composition-view{background:#000;color:#fff;display:none;position:absolute;white-space:nowrap;z-index:1}.xterm .composition-view.active{display:block}.xterm .xterm-viewport{background-color:#000;overflow-y:scroll;cursor:default;position:absolute;inset:0}.xterm .xterm-screen{position:relative}.xterm .xterm-screen canvas{position:absolute;left:0;top:0}.xterm .xterm-scroll-area{visibility:hidden}.xterm-char-measure-element{display:inline-block;visibility:hidden;position:absolute;top:0;left:-9999em;line-height:normal}.xterm.enable-mouse-events{cursor:default}.xterm.xterm-cursor-pointer,.xterm .xterm-cursor-pointer{cursor:pointer}.xterm.column-select.focus{cursor:crosshair}.xterm .xterm-accessibility:not(.debug),.xterm .xterm-message{position:absolute;inset:0;z-index:10;color:transparent;pointer-events:none}.xterm .xterm-accessibility-tree:not(.debug) *::selection{color:transparent}.xterm .xterm-accessibility-tree{user-select:text;white-space:pre}.xterm .live-region{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.xterm-dim{opacity:1!important}.xterm-underline-1{text-decoration:underline}.xterm-underline-2{text-decoration:double underline}.xterm-underline-3{text-decoration:wavy underline}.xterm-underline-4{text-decoration:dotted underline}.xterm-underline-5{text-decoration:dashed underline}.xterm-overline{text-decoration:overline}.xterm-overline.xterm-underline-1{text-decoration:overline underline}.xterm-overline.xterm-underline-2{text-decoration:overline double underline}.xterm-overline.xterm-underline-3{text-decoration:overline wavy underline}.xterm-overline.xterm-underline-4{text-decoration:overline dotted underline}.xterm-overline.xterm-underline-5{text-decoration:overline dashed underline}.xterm-strikethrough{text-decoration:line-through}.xterm-screen .xterm-decoration-container .xterm-decoration{z-index:6;position:absolute}.xterm-screen .xterm-decoration-container .xterm-decoration.xterm-decoration-top-layer{z-index:7}.xterm-decoration-overview-ruler{z-index:8;position:absolute;top:0;right:0;pointer-events:none}.xterm-decoration-top{z-index:2;position:relative}