:root {
  --ink: #25211d;
  --muted: #706961;
  --quiet: #948b82;
  --paper: #fffdf8;
  --paper-deep: #f5f0e7;
  --canvas: #e9e3d8;
  --line: #d8d0c3;
  --line-dark: #bcb1a2;
  --forest: #244d45;
  --forest-deep: #183b35;
  --rust: #9a422e;
  --rust-deep: #733120;
  --gold: #aa803b;
  --gold-pale: #f4ead6;
  --danger: #9a3428;
  --success: #2d6954;
  --shadow: 0 14px 35px rgba(51, 42, 31, .09);
  --shadow-tight: 0 5px 14px rgba(51, 42, 31, .08);
  --radius: 18px;
  --radius-small: 10px;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
}

* { box-sizing: border-box; }

html {
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
}

body { margin: 0; min-width: 320px; }

button, input, textarea, select { font: inherit; }

button { cursor: pointer; }

button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, a:focus-visible {
  outline: 3px solid #c5873f;
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 20;
  padding: .7rem 1rem;
  color: #fff;
  background: var(--forest);
  border-radius: .5rem;
}

.skip-link:focus { top: 1rem; }

.site-shell { max-width: 1540px; min-height: 100vh; margin: 0 auto; padding: 0 2.3rem; }

.topbar {
  min-height: 90px;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(280px, 440px) auto;
  align-items: center;
  gap: 1.25rem;
  border-bottom: 1px solid var(--line-dark);
}

.brand {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: .7rem;
  padding: .3rem 0;
  color: var(--ink);
  text-align: left;
  background: transparent;
  border: 0;
}

.brand-mark {
  display: grid;
  width: 2.45rem;
  height: 2.45rem;
  place-items: center;
  color: var(--paper);
  font-family: var(--serif);
  font-size: .85rem;
  font-weight: bold;
  letter-spacing: .08em;
  background: var(--forest);
  border-radius: 50%;
}

.brand-copy { display: grid; font-family: var(--serif); font-size: 1.12rem; line-height: 1.05; }
.brand-copy small { margin-top: .25rem; color: var(--muted); font-family: var(--sans); font-size: .61rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }

.global-search {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: .22rem .24rem .22rem .9rem;
  background: rgba(255, 253, 248, .78);
  border: 1px solid var(--line-dark);
  border-radius: 999px;
}

.global-search input { min-width: 0; padding: .45rem 0; color: var(--ink); background: transparent; border: 0; outline: 0; }
.global-search input::placeholder { color: var(--quiet); }

.icon-button {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  color: var(--paper);
  font-size: 1.35rem;
  line-height: 1;
  background: var(--forest);
  border: 0;
  border-radius: 50%;
}

.privacy-signal {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: var(--forest-deep);
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .03em;
  white-space: nowrap;
}

.status-dot { width: .55rem; height: .55rem; background: var(--success); border-radius: 50%; box-shadow: 0 0 0 3px rgba(45, 105, 84, .12); }

.primary-nav {
  display: flex;
  gap: .2rem;
  padding: 1.05rem 0 .9rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.primary-nav button {
  flex: 0 0 auto;
  padding: .46rem .8rem;
  color: var(--muted);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .025em;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
}

.primary-nav button:hover { color: var(--forest); background: rgba(36, 77, 69, .07); }
.primary-nav button[aria-current='page'] { color: var(--paper); background: var(--forest); }

#main-content { padding: 1.1rem 0 3.4rem; }

.loading-screen { display: grid; min-height: 52vh; place-content: center; gap: .9rem; color: var(--muted); text-align: center; }
.loader { width: 2rem; height: 2rem; border: 3px solid var(--line); border-top-color: var(--forest); border-radius: 50%; animation: spin .9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin: .6rem 0 1.5rem; }
.eyebrow { margin: 0 0 .35rem; color: var(--rust); font-family: var(--mono); font-size: .69rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
h1, h2, h3, h4 { color: var(--ink); font-family: var(--serif); line-height: 1.12; }
h1 { margin: 0; font-size: clamp(2rem, 4vw, 3.55rem); font-weight: 500; letter-spacing: -.035em; }
h2 { margin: 0; font-size: clamp(1.3rem, 2vw, 2.05rem); font-weight: 500; letter-spacing: -.02em; }
h3 { margin: 0; font-size: 1.22rem; font-weight: 500; }
h4 { margin: 0; font-size: 1rem; }
.lede { max-width: 58rem; margin: .7rem 0 0; color: #514a43; font-size: 1rem; }
.mono { color: var(--muted); font-family: var(--mono); font-size: .7rem; letter-spacing: .02em; }

.dashboard-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(245px, .6fr);
  gap: 1.2rem;
  margin-bottom: 1.2rem;
}

.hero-copy, .paper-card, .lesson-card, .tool-card, .dialogue-card, .exam-card, .scenario-card {
  background: var(--paper);
  border: 1px solid rgba(173, 159, 143, .75);
  border-radius: var(--radius);
  box-shadow: var(--shadow-tight);
}

.hero-copy { padding: clamp(1.55rem, 4vw, 3.4rem); background: var(--forest); border-color: var(--forest); }
.hero-copy h1, .hero-copy p { color: var(--paper); }
.hero-copy .eyebrow { color: #efc982; }
.hero-copy .lede { color: #e6ede9; max-width: 42rem; }
.hero-meta { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1.6rem; }
.hero-meta span { padding: .34rem .62rem; color: #dbe6e1; font-family: var(--mono); font-size: .67rem; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); border-radius: 999px; }

.next-card { padding: 1.25rem; display: flex; flex-direction: column; justify-content: space-between; }
.next-card p { margin: .55rem 0 1.1rem; color: var(--muted); }

.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .85rem; margin: 1.2rem 0 1.85rem; }
.stat-card { padding: 1rem 1rem .9rem; background: rgba(255,253,248,.6); border: 1px solid var(--line); border-radius: var(--radius-small); }
.stat-card strong { display: block; margin-bottom: .18rem; color: var(--forest); font-family: var(--serif); font-size: 1.9rem; font-weight: 500; line-height: 1; }
.stat-card span { color: var(--muted); font-family: var(--mono); font-size: .65rem; letter-spacing: .06em; text-transform: uppercase; }

.section-row { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin: 1.8rem 0 .8rem; }
.section-row p { margin: 0; color: var(--muted); font-size: .86rem; }

.track-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .85rem; }
.track-card { position: relative; min-height: 195px; padding: 1.15rem; text-align: left; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-small); box-shadow: var(--shadow-tight); overflow: hidden; }
.track-card:hover { border-color: var(--forest); transform: translateY(-2px); box-shadow: var(--shadow); }
.track-card::before { position: absolute; width: .4rem; height: 100%; top: 0; left: 0; content: ''; background: var(--forest); }
.track-card:nth-child(2n)::before { background: var(--rust); }
.track-card:nth-child(3n)::before { background: var(--gold); }
.track-card .eyebrow { margin-left: .22rem; font-size: .61rem; }
.track-card h3 { margin: .45rem .22rem .45rem; }
.track-card p { margin: 0 .22rem 1rem; color: var(--muted); font-size: .85rem; }
.track-foot { display: flex; align-items: center; justify-content: space-between; margin: 0 .22rem; color: var(--forest); font-family: var(--mono); font-size: .66rem; }

.split-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(290px, .9fr); gap: 1.1rem; }
.paper-card { padding: 1.2rem; }
.paper-card p { color: var(--muted); }
.safety-card { border-left: 4px solid var(--rust); }
.safety-card h3 { color: var(--rust-deep); }

.button, .button-quiet, .button-danger, .button-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  min-height: 2.45rem;
  padding: .55rem .9rem;
  font-size: .77rem;
  font-weight: 750;
  letter-spacing: .015em;
  border-radius: .56rem;
}
.button { color: var(--paper); background: var(--forest); border: 1px solid var(--forest); }
.button:hover { background: var(--forest-deep); }
.button-quiet { color: var(--forest); background: var(--paper-deep); border: 1px solid var(--line); }
.button-quiet:hover { border-color: var(--forest); }
.button-outline { color: var(--forest); background: transparent; border: 1px solid var(--forest); }
.button-danger { color: #fff; background: var(--rust); border: 1px solid var(--rust); }
.button:disabled, .button-quiet:disabled, .button-outline:disabled, .button-danger:disabled { cursor: not-allowed; opacity: .55; }

.source-chooser { display: grid; grid-template-columns: repeat(6, minmax(175px, 1fr)); gap: .6rem; margin: 1.1rem 0 1.3rem; overflow-x: auto; padding-bottom: .45rem; }
.source-chip { min-width: 175px; padding: .75rem; text-align: left; color: var(--ink); background: rgba(255,253,248,.5); border: 1px solid var(--line); border-radius: .65rem; }
.source-chip:hover { border-color: var(--forest); }
.source-chip[aria-pressed='true'] { color: var(--paper); background: var(--forest); border-color: var(--forest); }
.source-chip small { display: block; margin-bottom: .18rem; font-family: var(--mono); font-size: .6rem; text-transform: uppercase; }
.source-chip strong { display: block; font-family: var(--serif); font-size: .98rem; font-weight: 500; line-height: 1.15; }

.reader-layout { display: grid; grid-template-columns: minmax(210px, .33fr) minmax(0, 1fr); gap: 1.1rem; align-items: start; }
.lesson-nav { position: sticky; top: .8rem; max-height: calc(100vh - 2rem); padding: .7rem; overflow: auto; background: rgba(255,253,248,.57); border: 1px solid var(--line); border-radius: var(--radius-small); }
.lesson-nav button { display: block; width: 100%; padding: .45rem .55rem; color: var(--muted); text-align: left; font-size: .74rem; background: transparent; border: 0; border-radius: .38rem; }
.lesson-nav button:hover { color: var(--forest); background: var(--paper-deep); }
.lesson-nav button.is-complete { color: var(--forest); }
.lesson-nav .nav-level-3 { padding-left: 1rem; font-size: .7rem; }
.lesson-nav .nav-level-4 { padding-left: 1.4rem; font-size: .68rem; }
.lesson-stack { display: grid; grid-template-columns: minmax(0, 1fr); gap: .85rem; }
.lesson-card { padding: clamp(1.1rem, 3vw, 2rem); scroll-margin-top: 1rem; }
.lesson-card[data-level='3'] { margin-left: clamp(0rem, 3vw, 2rem); }
.lesson-card[data-level='4'] { margin-left: clamp(0rem, 5vw, 3.5rem); }
.lesson-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.lesson-head h2 { font-size: clamp(1.2rem, 2vw, 1.75rem); }
.lesson-actions { display: grid; justify-items: end; gap: .45rem; }
.cite { display: inline-flex; max-width: 100%; align-items: center; overflow-wrap: anywhere; gap: .3rem; padding: .23rem .43rem; color: var(--forest-deep); font-family: var(--mono); font-size: .61rem; line-height: 1.35; background: #edf2ee; border: 1px solid #c9d9d2; border-radius: .35rem; }
.cite::before { content: 'forrás'; color: var(--success); font-size: .56rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }

.markdown { color: #423c36; font-size: .96rem; overflow-wrap: break-word; }
.markdown p { margin: .7rem 0; }
.markdown ul, .markdown ol { padding-left: 1.25rem; }
.markdown li { margin: .32rem 0; }
.markdown blockquote { margin: .9rem 0; padding: .75rem .9rem; color: #575048; background: var(--paper-deep); border-left: 3px solid var(--gold); }
.markdown code { padding: .08rem .27rem; color: #553826; font-family: var(--mono); font-size: .86em; background: #f3eadc; border-radius: .2rem; }
.markdown pre { overflow: auto; padding: .75rem; color: #e8efea; font-family: var(--mono); font-size: .78rem; background: #253a35; border-radius: .45rem; }
.markdown .table-line { padding: .45rem .6rem; margin: .2rem 0; font-size: .84rem; background: var(--paper-deep); border-radius: .32rem; }

.tool-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .85rem; }
.tool-card { padding: 1.1rem; }
.tool-card p { color: var(--muted); font-size: .87rem; }
.tool-card .tool-number { display: block; margin-bottom: .6rem; color: var(--rust); font-family: var(--serif); font-size: 2rem; line-height: 1; }

.review-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, .35fr); gap: 1.1rem; align-items: start; }
.flash-card { min-height: 355px; padding: clamp(1.2rem, 4vw, 3rem); display: flex; flex-direction: column; justify-content: space-between; color: var(--ink); background: var(--paper); border: 1px solid var(--line-dark); border-radius: var(--radius); box-shadow: var(--shadow); }
.flash-card .question-label { color: var(--rust); font-family: var(--mono); font-size: .68rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.flash-card .flash-question { max-width: 45rem; margin: 1.2rem 0; font-family: var(--serif); font-size: clamp(1.45rem, 3vw, 2.25rem); line-height: 1.2; }
.flash-answer { padding: 1rem; margin: .9rem 0; color: var(--forest-deep); background: #edf3ef; border-left: 4px solid var(--success); border-radius: .35rem; }
.review-controls { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1rem; }
.key { display: inline-grid; min-width: 1.1rem; place-items: center; padding: .08rem .23rem; color: var(--muted); font-family: var(--mono); font-size: .65rem; background: var(--paper-deep); border: 1px solid var(--line); border-radius: .2rem; }
.queue-card { padding: 1rem; background: rgba(255,253,248,.65); border: 1px solid var(--line); border-radius: var(--radius-small); }
.queue-card dl { display: grid; grid-template-columns: 1fr auto; gap: .55rem .8rem; margin: 1rem 0 0; }
.queue-card dt { color: var(--muted); font-size: .82rem; }
.queue-card dd { margin: 0; color: var(--forest); font-family: var(--mono); font-size: .76rem; }

.setup-card, .exam-card { max-width: 860px; padding: clamp(1.2rem, 4vw, 2.2rem); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; margin: 1.1rem 0; }
.field { display: grid; gap: .35rem; }
.field label { color: var(--muted); font-size: .76rem; font-weight: 700; }
.field input, .field select, .field textarea { width: 100%; padding: .65rem .72rem; color: var(--ink); background: #fffefa; border: 1px solid var(--line-dark); border-radius: .45rem; }
.check-field { display: flex; align-items: center; gap: .55rem; padding-top: 1.6rem; }
.check-field input { width: 1rem; height: 1rem; }

.quiz-card { max-width: 920px; padding: clamp(1.2rem, 4vw, 2.3rem); }
.progress-line { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-bottom: .8rem; margin-bottom: 1.2rem; color: var(--muted); font-family: var(--mono); font-size: .7rem; border-bottom: 1px solid var(--line); }
.quiz-question, .exam-question { margin: 1rem 0 1.3rem; font-family: var(--serif); font-size: clamp(1.3rem, 3vw, 2rem); line-height: 1.25; }
.choice-list { display: grid; gap: .6rem; }
.choice { display: flex; align-items: flex-start; gap: .7rem; width: 100%; padding: .85rem .9rem; color: var(--ink); text-align: left; background: var(--paper); border: 1px solid var(--line); border-radius: .55rem; }
.choice:hover { border-color: var(--forest); }
.choice.is-correct { color: #1f513e; background: #e7f1eb; border-color: var(--success); }
.choice.is-wrong { color: #7f3029; background: #f7e8e4; border-color: var(--danger); }
.choice-label { display: grid; flex: 0 0 auto; width: 1.35rem; height: 1.35rem; place-items: center; color: var(--forest); font-family: var(--mono); font-size: .68rem; border: 1px solid currentColor; border-radius: 50%; }
.explanation { padding: .9rem 1rem; margin-top: 1rem; color: #424c46; background: var(--paper-deep); border-left: 3px solid var(--gold); }

.exam-answer-area { min-height: 150px; resize: vertical; }
.score-card { max-width: 860px; padding: 1.45rem; }
.score-big { margin: .5rem 0; color: var(--forest); font-family: var(--serif); font-size: clamp(3rem, 8vw, 5rem); line-height: .9; }
.mistake-list { display: grid; gap: .65rem; margin-top: 1rem; }
.mistake-item { padding: .8rem; background: var(--paper-deep); border: 1px solid var(--line); border-radius: .5rem; }

.scenario-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; }
.scenario-card { padding: 1.1rem; }
.scenario-card h3 { margin: .45rem 0 .8rem; }
.scenario-card p { color: var(--muted); }
.scenario-answer { padding: .8rem; margin-top: .8rem; color: #3d4d46; background: #edf3ef; border-left: 3px solid var(--success); }

.tutor-layout { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(270px, .42fr); gap: 1rem; align-items: start; }
.tutor-thread { min-height: 470px; padding: 1rem; display: grid; align-content: start; gap: .8rem; background: rgba(255,253,248,.63); border: 1px solid var(--line); border-radius: var(--radius); }
.tutor-message { max-width: 92%; padding: .9rem 1rem; border-radius: .8rem; }
.tutor-message.user { justify-self: end; color: var(--paper); background: var(--forest); border-bottom-right-radius: .15rem; }
.tutor-message.assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: .15rem; box-shadow: var(--shadow-tight); }
.tutor-message p { margin: .25rem 0; }
.message-meta { margin-bottom: .35rem; color: var(--rust); font-family: var(--mono); font-size: .63rem; letter-spacing: .05em; text-transform: uppercase; }
.tutor-message.user .message-meta { color: #cbe1d7; }
.evidence-panel { padding: .7rem; margin-top: .7rem; background: var(--paper-deep); border: 1px solid var(--line); border-radius: .45rem; }
.evidence-panel summary { color: var(--forest); font-size: .75rem; font-weight: 750; cursor: pointer; }
.evidence-item { padding-top: .7rem; margin-top: .7rem; color: #5a544c; font-size: .81rem; border-top: 1px solid var(--line); }
.action-row { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .8rem; }
.action-spacer { flex: 1; }
.action-row button { padding: .35rem .5rem; color: var(--forest); font-size: .7rem; font-weight: 700; background: transparent; border: 1px solid #aac4b9; border-radius: .35rem; }
.tutor-composer { display: grid; gap: .6rem; margin-top: .9rem; }
.tutor-composer textarea { min-height: 100px; resize: vertical; }
.tutor-side { display: grid; gap: .8rem; }
.mode-card { padding: 1rem; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-small); }
.mode-card h3 { margin-bottom: .5rem; }
.mode-select { display: grid; gap: .5rem; margin: .75rem 0; }
.mode-choice { display: flex; align-items: flex-start; gap: .55rem; padding: .7rem; border: 1px solid var(--line); border-radius: .5rem; }
.mode-choice:has(input:checked) { border-color: var(--forest); background: #edf3ef; }
.mode-choice strong, .mode-choice small { display: block; }
.mode-choice small { margin-top: .12rem; color: var(--muted); font-size: .71rem; }
.notice { padding: .8rem; color: #66431e; font-size: .82rem; background: var(--gold-pale); border: 1px solid #ddc28f; border-radius: .5rem; }
.notice.safe { color: #245241; background: #edf3ef; border-color: #bfd6ca; }
.notice.warning { color: #783328; background: #f7e8e4; border-color: #e8b7ae; }

.search-results { display: grid; gap: .75rem; max-width: 1000px; }
.search-result { width: 100%; padding: 1rem; text-align: left; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-small); box-shadow: var(--shadow-tight); }
.search-result:hover { border-color: var(--forest); }
.search-result h3 { margin: .45rem 0; }
.search-result p { margin: .5rem 0; color: var(--muted); font-size: .88rem; }

.empty-state { max-width: 760px; padding: 2rem; color: var(--muted); text-align: center; background: rgba(255,253,248,.48); border: 1px dashed var(--line-dark); border-radius: var(--radius); }
.empty-state h2 { color: var(--ink); }

.site-footer { display: flex; justify-content: space-between; gap: 1rem; padding: 1.2rem 0 1.5rem; color: var(--muted); font-size: .69rem; border-top: 1px solid var(--line-dark); }
.site-footer p { max-width: 48rem; margin: 0; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (max-width: 1050px) {
  .site-shell { padding: 0 1.3rem; }
  .topbar { grid-template-columns: 1fr auto; }
  .global-search { grid-column: 1 / -1; grid-row: 2; margin-top: -.45rem; }
  .privacy-signal { justify-self: end; }
  .track-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .reader-layout { grid-template-columns: minmax(0, 1fr); }
  .lesson-nav { position: static; max-height: 180px; }
  .tutor-layout { grid-template-columns: minmax(0, 1fr); }
  .tutor-side { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .site-shell { padding: 0 .85rem; }
  .topbar { min-height: 132px; grid-template-columns: minmax(0, 1fr); gap: .7rem; padding-block: .6rem; }
  .brand-copy { font-size: 1rem; }
  .privacy-signal { grid-row: 2; justify-self: start; min-width: 0; font-size: .58rem; white-space: normal; }
  .global-search { grid-row: 3; margin-top: 0; }
  .primary-nav { margin: 0 -.85rem; padding-left: .85rem; padding-right: .85rem; }
  .page-head, .section-row { align-items: flex-start; flex-direction: column; }
  .dashboard-hero, .split-grid, .review-layout { grid-template-columns: 1fr; }
  .track-grid, .tool-grid, .scenario-grid, .tutor-side { grid-template-columns: 1fr; }
  .stats-grid { gap: .55rem; }
  .stat-card { padding: .8rem; }
  .stat-card strong { font-size: 1.55rem; }
  .form-grid { grid-template-columns: 1fr; }
  .check-field { padding-top: 0; }
  .lesson-card[data-level='3'], .lesson-card[data-level='4'] { margin-left: 0; }
  .lesson-head { flex-direction: column; }
  .lesson-actions { justify-items: start; }
  .flash-card { min-height: 310px; }
  .site-footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}