:root {
  --bg: #0e0b17;
  --bg2: #171226;
  --card: #1e1830;
  --card2: #261f3d;
  --line: #3a3058;
  --text: #f1ecff;
  --muted: #a99fc4;
  --red: #e5484d;
  --red2: #ff6b6f;
  --gold: #ffc94a;
  --green: #3ddc97;
  --blue: #6cb6ff;
  --radius: 16px;
  --mono: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: radial-gradient(1200px 600px at 50% -200px, #3b1530 0%, transparent 60%), var(--bg);
  color: var(--text);
  font: 17px/1.6 Nunito, system-ui, sans-serif;
  min-height: 100vh;
}
a { color: var(--gold); }
code { font-variant-ligatures: none; font-family: var(--mono); font-size: .88em; background: #0003; border: 1px solid #ffffff14; padding: 1px 6px; border-radius: 6px; color: #ffd98a; }
h1, h2, h3, h4 { font-family: Fredoka, Nunito, sans-serif; font-weight: 600; line-height: 1.2; }
h3 { font-size: 1.45rem; margin: 0 0 .6em; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.center { text-align: center; }
.grow { flex: 1; }

/* Top bar */
.topbar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 22px; background: #0e0b17e6; backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.brand { font-family: Fredoka, sans-serif; font-size: 1.25rem; color: var(--text); text-decoration: none; }
.topbar nav { display: flex; gap: 18px; align-items: center; }
.topbar nav a { color: var(--muted); text-decoration: none; font-weight: 700; }
.topbar nav a:hover { color: var(--text); }
.star-total { color: var(--gold); font-weight: 800; background: #ffc94a1a; border: 1px solid #ffc94a55; padding: 3px 12px; border-radius: 99px; }
main { max-width: 1180px; margin: 0 auto; padding: 24px 20px 40px; }
.foot { text-align: center; padding: 20px; }

/* Buttons */
.btn { font: inherit; font-weight: 700; cursor: pointer; border: 1px solid var(--line); background: var(--card2); color: var(--text);
  padding: 9px 18px; border-radius: 12px; transition: transform .08s, background .15s, border-color .15s; text-decoration: none; display: inline-block; }
.btn:hover:not(:disabled) { border-color: #6d5c9e; background: #2f2650; }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary { background: linear-gradient(180deg, var(--red2), var(--red)); border-color: #ff8a8d; color: #fff; box-shadow: 0 4px 16px #e5484d55; }
.btn.primary:hover:not(:disabled) { background: linear-gradient(180deg, #ff8084, #ee5458); }
.btn.run { background: #1f3b2f; border-color: #2f7a57; color: #b8ffd9; }
.btn.run:hover:not(:disabled) { background: #26503d; }
.btn.big { font-size: 1.1rem; padding: 14px 26px; }
.btn.small { padding: 5px 12px; font-size: .9rem; }
.btn.tiny { padding: 2px 10px; font-size: .78rem; border-radius: 8px; }
.btn.ghost { background: transparent; }
.btn.chip { padding: 4px 12px; border-radius: 99px; font-size: .92rem; }
.btn.chip.sel { background: var(--gold); color: #2a1c00; border-color: var(--gold); }
.btn.chip.sel code { color: #2a1c00; }

/* Home */
.hero { text-align: center; padding: 28px 10px 30px; }
.hero h1 { font-size: clamp(2.2rem, 6vw, 3.6rem); margin: 0 0 .2em; letter-spacing: .5px; text-shadow: 0 4px 30px #e5484d66; }
.hero p { font-size: 1.15rem; color: #d9d0f5; max-width: 640px; margin: 0 auto 24px; }
.ticket-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(310px, 1fr)); gap: 18px; margin-bottom: 26px; }
.ticket { position: relative; display: flex; text-decoration: none; color: var(--text); min-height: 128px;
  background: linear-gradient(135deg, var(--card2), var(--card)); border: 1px solid var(--line); border-radius: var(--radius);
  transition: transform .15s, box-shadow .15s, border-color .15s; overflow: hidden;
  -webkit-mask: radial-gradient(circle 12px at 92px 0, #0000 98%, #000) top/100% 51% no-repeat, radial-gradient(circle 12px at 92px 100%, #0000 98%, #000) bottom/100% 51% no-repeat;
          mask: radial-gradient(circle 12px at 92px 0, #0000 98%, #000) top/100% 51% no-repeat, radial-gradient(circle 12px at 92px 100%, #0000 98%, #000) bottom/100% 51% no-repeat; }
.ticket:hover { transform: translateY(-3px); border-color: #7a66b8; box-shadow: 0 10px 30px #0008; }
.ticket.next { border-color: var(--gold); box-shadow: 0 0 0 1px var(--gold), 0 0 28px #ffc94a44; }
.ticket.done { background: linear-gradient(135deg, #1f2f2a, #1a2422); border-color: #2f6b55; }
.ticket.bonus { background: linear-gradient(135deg, #3a2a10, #2a1f12); border-color: #8a6a2a; }
.t-left { width: 92px; flex: none; display: flex; flex-direction: column; align-items: center; justify-content: center; border-right: 2px dashed #ffffff22; }
.t-emoji { font-size: 2.3rem; }
.t-num { font-family: Fredoka, sans-serif; font-size: .78rem; letter-spacing: 1.5px; color: var(--muted); }
.t-body { padding: 14px 16px; flex: 1; display: flex; flex-direction: column; }
.t-title { font-family: Fredoka, sans-serif; font-size: 1.25rem; }
.t-concept { color: var(--muted); font-size: .92rem; flex: 1; }
.t-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; }
.chip-status { font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); }
.ticket.done .chip-status { color: var(--green); }
.ticket.next .chip-status { color: var(--gold); }
.stars { color: var(--gold); letter-spacing: 2px; font-size: 1.1rem; }
.stars .off { color: #ffffff22; }
.stars.huge { font-size: 2.6rem; }

/* Level page */
.level-head { display: grid; grid-template-columns: auto 1fr; gap: 6px 18px; align-items: center; margin-bottom: 18px; }
.back { color: var(--muted); text-decoration: none; font-weight: 700; grid-column: 1 / -1; font-size: .92rem; }
.lh-title { display: flex; gap: 12px; align-items: center; }
.lh-emoji { font-size: 2.4rem; }
.lh-num { color: var(--muted); font-size: .8rem; letter-spacing: 1.5px; text-transform: uppercase; font-weight: 800; }
.lh-title h2 { margin: 0; font-size: 1.9rem; }
.dots { display: flex; gap: 7px; flex-wrap: wrap; justify-content: flex-end; }
.dot { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--line); background: transparent; cursor: pointer; padding: 0; }
.dot.past { background: #6d5c9e; border-color: #6d5c9e; }
.dot.now { background: var(--gold); border-color: var(--gold); transform: scale(1.25); }
.dot.t-task { border-radius: 4px; }
.step { max-width: 820px; margin: 0 auto; }
.step:has(.task), .step.wide { max-width: none; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 28px; box-shadow: 0 10px 40px #0005; }
.card p:first-of-type { margin-top: 0; }
.nav { display: flex; align-items: center; gap: 12px; max-width: 820px; margin: 18px auto 0; }
.step:has(.task) + .nav { max-width: none; }
.callout { background: #ffc94a14; border: 1px solid #ffc94a44; border-left: 4px solid var(--gold); border-radius: 10px; padding: 10px 14px; margin: 14px 0; }
.steps-table { border-collapse: collapse; width: 100%; margin: 10px 0 14px; font-size: .95rem; }
.steps-table td { padding: 7px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.steps-table td:first-child { font-weight: 800; color: var(--gold); white-space: nowrap; }
.problem { background: var(--bg2); border: 1px solid var(--line); border-radius: 12px; padding: 12px 18px; margin: 10px 0; }
.problem ol { margin: 6px 0; padding-left: 22px; }

/* Code blocks */
pre.code { font-family: var(--mono); font-size: 14.5px; line-height: 1.55; background: #15121f; border: 1px solid #2c2442; border-radius: 12px;
  padding: 12px 16px; overflow-x: auto; color: #eeffff; margin: 10px 0; }
pre.code .cm-keyword { color: #c792ea; } pre.code .cm-type, pre.code .cm-variable-3 { color: #ffcb6b; }
pre.code .cm-string { color: #c3e88d; } pre.code .cm-number { color: #f78c6c; } pre.code .cm-comment { color: #6f6a8a; font-style: italic; }
pre.code .cm-meta { color: #89ddff; } pre.code .cm-def { color: #82aaff; } pre.code .cm-operator { color: #89ddff; } pre.code .cm-variable { color: #eeffff; }
.demo-code .cl { padding: 0 8px; margin: 0 -8px; border-radius: 6px; white-space: pre; transition: background .15s; min-height: 1.55em; }
.demo-code .cl.on { background: #ffc94a2e; box-shadow: inset 3px 0 0 var(--gold); }
.demo-code .cl.dim { opacity: .45; }
.demo-code.clickable .cl { cursor: pointer; }
.demo-code.clickable .cl:hover { background: #ffffff10; }

/* Widgets */
.widget { margin-top: 14px; }
.explain-box { background: var(--bg2); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; margin: 12px 0; min-height: 52px; }
.controls { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; margin: 8px 0; }
.controls label { display: flex; align-items: center; gap: 8px; }
.controls label.grow { flex: 1 1 260px; flex-wrap: wrap; }
.controls input[type=range] { flex: 1; accent-color: var(--gold); min-width: 180px; }
.controls select, .controls input:not([type=range]):not([type=checkbox]), .cashier-form input {
  font: inherit; background: var(--bg2); color: var(--text); border: 1px solid var(--line); border-radius: 10px; padding: 6px 10px; }
.controls input[type=number] { width: 80px; }
.toggle { margin-left: auto; cursor: pointer; }
.toggle input { accent-color: var(--gold); width: 18px; height: 18px; }
.split { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; align-items: start; }
.box-shelf { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; padding: 8px 0; }
.vbox { width: 120px; text-align: center; background: linear-gradient(#3a2d18, #2a2113); border: 2px solid #8a6a2a; border-radius: 10px; padding: 8px; }
.vbox.inline { display: inline-flex; flex-direction: column; width: auto; min-width: 110px; vertical-align: middle; }
.vval { font-family: var(--mono); font-size: 1.3rem; color: var(--gold); min-height: 1.6em; }
.vname { font-weight: 800; }
.vtype { font-size: .78rem; color: var(--muted); }
.pop { animation: pop .45s ease; }
@keyframes pop { 0% { transform: scale(.7); } 60% { transform: scale(1.12); } 100% { transform: scale(1); } }
.screen-out { font-family: var(--mono); background: #000; color: #b8ffd9; border-radius: 10px; padding: 10px 14px; border: 1px solid #2f7a57; }
.screen-out.big { font-size: 1.4rem; margin: 10px 0; }
.bad-text { color: var(--red2); font-size: .9rem; }

.price-board { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; background: #000; border: 2px solid #3a3058; border-radius: 12px; padding: 12px; font-family: var(--mono); }
.price-board div { display: flex; justify-content: space-between; color: #ffe9b0; padding: 4px 8px; border-radius: 6px; background: #ffffff08; }
.price-board b { color: var(--gold); }
.rules { margin: 10px 0; padding-left: 4px; list-style: none; }
.rules li { margin: 4px 0; }
.customer { display: flex; align-items: center; gap: 14px; margin: 16px 0 10px; }
.avatar { font-size: 2.6rem; }
.bubble { background: #fff; color: #1d1530; border-radius: 16px; padding: 10px 16px; position: relative; font-weight: 600; }
.bubble::before { content: ''; position: absolute; left: -8px; top: 50%; transform: translateY(-50%); border: 8px solid transparent; border-right-color: #fff; border-left: 0; }
.cashier-form { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; margin: 12px 0; }
.cashier-form label { display: grid; grid-template-columns: 1fr auto 110px; align-items: center; gap: 6px; font-size: .95rem; }
.cashier-form input.ok { border-color: var(--green); background: #3ddc9714; }
.cashier-form input.bad { border-color: var(--red2); background: #e5484d14; }

.machine { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 12px; }
.call { min-height: 1.8em; }
.machine-body { display: flex; gap: 14px; align-items: flex-start; background: repeating-linear-gradient(45deg, #2a2240, #2a2240 10px, #251e3a 10px, #251e3a 20px);
  border: 2px solid #5b4a8e; border-radius: 14px; padding: 14px; min-height: 120px; }
.gear { font-size: 2.6rem; }
.gear.spin { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.inside { flex: 1; font-family: var(--mono); font-size: .92rem; }
.mline { animation: fadein .35s ease; padding: 3px 0; }
@keyframes fadein { from { opacity: 0; transform: translateX(-6px); } to { opacity: 1; transform: none; } }
.result { min-height: 3em; }

.meter { position: relative; height: 34px; background: var(--bg2); border: 1px solid var(--line); border-radius: 99px; overflow: hidden; margin: 10px 0; }
.meter .fill { height: 100%; background: linear-gradient(90deg, #6d5c9e, #a48bea); transition: width .2s; }
.meter .fill.unlocked { background: linear-gradient(90deg, #2f7a57, var(--green)); }
.meter span { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-weight: 800; text-shadow: 0 1px 3px #000; }
.yes { color: var(--green); } .no { color: var(--red2); }

.queue { display: flex; gap: 8px; margin: 14px 0 6px; flex-wrap: wrap; }
.qc { width: 48px; height: 52px; display: flex; align-items: center; justify-content: center; font-family: var(--mono); font-size: 1.4rem;
  border: 2px solid var(--line); border-radius: 10px; background: var(--bg2); position: relative; transition: all .25s; }
.qc.read { background: #3ddc9726; border-color: var(--green); color: var(--green); }
.qc.skip { opacity: .35; text-decoration: line-through; }
.qc.cursor::after { content: '▲'; position: absolute; bottom: -22px; color: var(--gold); font-size: 1rem; }

/* Quiz */
.quiz .q { font-size: 1.1rem; margin-bottom: 14px; }
.options { display: grid; gap: 10px; }
.opt { font: inherit; text-align: left; cursor: pointer; background: var(--bg2); color: var(--text); border: 2px solid var(--line); border-radius: 12px; padding: 12px 16px; transition: all .15s; }
.opt:hover { border-color: #7a66b8; }
.opt.right { border-color: var(--green); background: #3ddc9718; }
.opt.wrong { border-color: var(--red2); background: #e5484d14; animation: shake .3s; }
@keyframes shake { 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
.ok-box { background: #3ddc9714; border: 1px solid #3ddc9766; border-radius: 12px; padding: 12px 16px; margin: 12px 0; }
.ok-box.big { font-size: 1.05rem; }
.bad-box { background: #e5484d12; border: 1px solid #e5484d66; border-radius: 12px; padding: 12px 16px; margin: 12px 0; }
.bad-box ul, .ok-box ul { margin: 6px 0; padding-left: 22px; }
.win-box { background: linear-gradient(135deg, #3a2a10, #2a1f12); border: 1px solid var(--gold); border-radius: 12px; padding: 14px 18px; margin: 14px 0; }

/* Task */
.task { display: grid; grid-template-columns: minmax(300px, 0.85fr) 1.15fr; gap: 18px; align-items: start; }
.task-left { padding: 20px 22px; }
.task-right { display: flex; flex-direction: column; gap: 10px; position: sticky; top: 70px; }
.output-sample { font-family: var(--mono); font-size: 13.5px; background: #000; color: #e8e8e8; border-radius: 10px; padding: 10px 14px; border: 1px solid #333; overflow-x: auto; }
.typed { color: #000; background: var(--gold); border-radius: 4px; padding: 0 4px; font-weight: 700; }
.typed.enter { background: var(--red2); color: #fff; }
.hint { background: #6cb6ff12; border: 1px solid #6cb6ff55; border-radius: 12px; padding: 10px 14px; margin: 10px 0; animation: fadein .3s; }
.hint-buttons { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.editor-wrap { border: 1px solid #2c2442; border-radius: 12px; overflow: hidden; background: #212121; }
.editor-bar { display: flex; justify-content: space-between; align-items: center; padding: 6px 12px; background: #15121f; color: var(--muted); font-size: .85rem; font-family: var(--mono); }
.editor .CodeMirror { height: auto; min-height: 300px; font-family: var(--mono); font-size: 14.5px; line-height: 1.55; }
.editor .CodeMirror-scroll { min-height: 300px; max-height: 62vh; }
.cm-error-line { background: #e5484d33 !important; }
.input-label { display: block; font-weight: 700; font-size: .95rem; }
.stdin { display: block; width: 100%; margin-top: 4px; font-family: var(--mono); font-size: 14px; background: #000; color: var(--gold); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; resize: vertical; }
.run-bar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.terminal { border: 1px solid #333; border-radius: 12px; overflow: hidden; background: #000; }
.term-bar { background: #1a1a1a; color: #888; font-size: .8rem; padding: 4px 12px; font-family: var(--mono); }
.term-out, .mini-term { margin: 0; padding: 12px 14px; font-family: var(--mono); font-size: 14px; color: #e8e8e8; white-space: pre-wrap; word-break: break-word; min-height: 90px; max-height: 420px; overflow: auto; }
.mini-term { min-height: 0; background: #000; border-radius: 10px; font-size: 13px; }
.eof { color: var(--red2); font-style: italic; }
.err { color: var(--red2); }
.term-notes { white-space: normal; font-family: Nunito, sans-serif; border-top: 1px dashed #444; margin-top: 10px; padding-top: 8px; font-size: .92rem; }
.term-notes div { margin: 4px 0; }
.compile-error { white-space: normal; font-family: Nunito, sans-serif; font-size: .95rem; }
.cerr { background: #e5484d12; border: 1px solid #e5484d55; border-radius: 10px; padding: 8px 12px; margin: 8px 0; }
.cerr-head { font-weight: 800; color: var(--red2); }
.snippet { font-family: var(--mono); font-size: 12.5px; background: #111; color: #ccc; padding: 6px 10px; border-radius: 8px; overflow-x: auto; white-space: pre; margin: 6px 0 0; }
.compile-error details { margin-top: 8px; }
.tests { margin-top: 10px; }
.test { border: 1px solid var(--line); border-radius: 10px; margin: 6px 0; background: var(--bg2); }
.test summary { cursor: pointer; padding: 8px 12px; font-weight: 700; }
.test.pass summary { color: #b8ffd9; }
.test-body { padding: 0 12px 10px; font-size: .94rem; }
.test-body ul { margin: 4px 0; padding-left: 22px; }

/* Modal & fun */
.modal-bg { position: fixed; inset: 0; background: #000a; display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px; animation: fadein .2s; }
.modal { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 24px; max-width: 760px; width: 100%; max-height: 88vh; overflow: auto; text-align: center; }
.modal pre.code { text-align: left; max-height: 50vh; }
.modal p { text-align: left; }
.modal .btn { margin: 6px 4px 0; }
.stub { background: linear-gradient(135deg, #3a2a10, #2a1f12); border: 2px dashed var(--gold); border-radius: 16px; padding: 18px; margin-bottom: 14px; }
.stub-emoji { font-size: 3rem; }
.stub-title { font-family: Fredoka, sans-serif; font-size: 1.6rem; }
.stub-name { color: var(--muted); }
.popcorn-layer { position: fixed; inset: 0; pointer-events: none; z-index: 60; overflow: hidden; }
.popcorn-layer span { position: absolute; top: -40px; animation: fall 2.4s cubic-bezier(.3,.6,.6,1) forwards; }
@keyframes fall { to { transform: translate(var(--drift), 110vh) rotate(540deg); opacity: .9; } }

/* Cheat sheet */
.cs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 16px; }
.cs { background: var(--bg2); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; }
.cs h4 { margin: 0 0 6px; color: var(--gold); font-size: 1.1rem; }
.cs p, .cs ul { font-size: .92rem; margin: 6px 0; }
.cs ul { padding-left: 18px; }

@media (max-width: 900px) {
  .task { grid-template-columns: 1fr; }
  .task-right { position: static; }
  .split { grid-template-columns: 1fr; }
  .level-head { grid-template-columns: 1fr; }
  .dots { justify-content: flex-start; }
  .cashier-form { grid-template-columns: 1fr; }
  .price-board { grid-template-columns: 1fr; }
  .card { padding: 18px; }
  body { font-size: 16px; }
}

/* Never merge characters like == or != into one symbol: learners must see every character. */
pre, code, .CodeMirror, .stdin, .qc, .price-board { font-variant-ligatures: none; font-feature-settings: "liga" 0, "calt" 0; }
@media (max-width: 520px) {
  .topbar { padding: 8px 14px; }
  .brand { font-size: 1.05rem; }
  .hide-sm { display: none; }
  .topbar nav { gap: 10px; }
  .star-total { white-space: nowrap; }
}

/* Level 1 + fill-in-the-blanks + glossary */
.ipo-row { display: flex; align-items: stretch; gap: 8px; margin: 14px 0; flex-wrap: wrap; }
.ipo { flex: 1 1 160px; border-radius: 12px; padding: 12px 14px; border: 2px solid; text-align: center; }
.ipo.in { border-color: var(--blue); background: #6cb6ff14; }
.ipo.proc { border-color: var(--gold); background: #ffc94a14; }
.ipo.out { border-color: var(--green); background: #3ddc9714; }
.ipo-arrow { align-self: center; font-size: 1.6rem; color: var(--muted); }
.ipo-list { display: grid; gap: 8px; }
.ipo-item { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; background: var(--bg2); border: 2px solid var(--line); border-radius: 12px; padding: 8px 12px; }
.ipo-item.ok { border-color: var(--green); }
.ipo-item.bad { border-color: var(--red2); }
.ipo-text { flex: 1 1 260px; }
.ipo-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.slide { display: flex; gap: 18px; align-items: flex-start; background: var(--bg2); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; min-height: 190px; animation: fadein .3s; }
.slide-icon { font-size: 3rem; }
.slide-body { flex: 1; }
.slide-body h4 { margin: 0 0 6px; font-size: 1.2rem; color: var(--gold); }
.slide-dots { flex: 1; display: flex; justify-content: center; gap: 6px; }
.slide-dots span { width: 9px; height: 9px; border-radius: 50%; background: var(--line); }
.slide-dots span.on { background: var(--gold); }
pre.code.bin { color: #3ddc97; letter-spacing: 1px; }
.cpu { font-size: 1.3rem; font-weight: 800; }
.term-input-wrap { display: inline-flex; gap: 6px; align-items: center; }
.term-input { font: inherit; width: 9ch; background: #222; color: var(--gold); border: 1px solid var(--gold); border-radius: 6px; padding: 1px 6px; }
.fill-code { font-size: 15.5px; line-height: 2.1; }
.blank { font: inherit; font-family: var(--mono); color: var(--gold); background: #000; border: 2px dashed var(--gold); border-radius: 6px; padding: 0 4px; text-align: center; font-variant-ligatures: none; }
.blank:focus { outline: none; border-style: solid; box-shadow: 0 0 0 3px #ffc94a44; }
.blank.ok { border: 2px solid var(--green); color: var(--green); }
.blank.bad { border: 2px solid var(--red2); animation: shake .3s; }
.blank:disabled { opacity: 1; }
.glossary dt { font-weight: 800; color: var(--gold); margin-top: 14px; font-size: 1.05rem; }
.glossary dd { margin: 3px 0 0 0; padding-left: 14px; border-left: 3px solid var(--line); }