/* Hallmark · shape: product-led, the week and the quiz on the first screen (rebuild after Formwork read heavy) · genre: playful · theme: blend of Hum and Werkstatt (by request) · redesign: full
 * hero: Settled · nav: edge-aligned · footer: index columns · imagery: the product built in one slot (a week in ruled cells and a quiz to press) · signature: the sample quiz on the first screen, pressed answer turning mint · blend: Hum's grained cream, card-stock controls and torn sheet; Werkstatt's ink-ruled cells and flat colours that code a category
 * axes: light/geometric-sans/warm · posture: full-palette (rust acts, yellow is Kvestnik, blue links, mint works) · contrast: pass · fold: pass · copy: verbatim · v2.0.0 */
/* Hallmark · pre-emit critique: P4 H4 E4 S5 R4 V5 · weakest: P, the page lets the product argue; the hero quiz asks a question the page itself answers (six views) */
/* Hallmark · dropped the FAQ accordion script and the .reveal reveal · native details replace the max-height accordion; nothing fades in */
/* Hallmark · waive 84 · the week and the quiz are built in one slot · a capture of the live eduklass.ru schedule would show real teachers' surnames */
/* Hallmark · dismissed F4 · .cta-final__box is the closing yellow sheet, not a button; one filled primary per screen */
/* Hallmark · waive 37 · the Квестник card carries Unbounded and JetBrains Mono · Квестник is shown in its own faces; the page keeps Jost over Inter, the ЭдуКласс brand body */
/* Hallmark · dismissed 49 · the Квестник answer tiles wrap by design, as in the app: number, glyph, answer and the tile's name */
/* Hallmark · waive 12 · the spring sits on the primary button only · Hum's card stock bounces once when pressed, as the owner's own motion taste asks */
@import url("./tokens.css");
@import url("./base.css");

body { font-size: 1.0625rem; color: var(--color-ink-2); }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0; background-image: var(--grain); background-size: 200px 200px; opacity: var(--texture-opacity); }
body > * { position: relative; z-index: 1; }
h1, h2, h3 { color: var(--color-ink); }
h2.section-title { font-size: var(--text-section); }
.lead { color: var(--color-ink-2); }
.caption { margin-top: var(--space-sm); font-size: var(--text-sm); color: var(--color-muted); }
a { color: var(--color-blue); }
mark { background: color-mix(in oklab, var(--color-yellow) 70%, transparent); color: inherit; padding: 0 var(--space-3xs); box-decoration-break: clone; -webkit-box-decoration-break: clone; }
::selection { background: color-mix(in oklab, var(--color-yellow) 70%, transparent); color: var(--color-ink); }
.skip { position: absolute; left: var(--space-md); top: calc(-1 * var(--space-3xl)); z-index: var(--z-toast); padding: var(--space-xs) var(--space-md); background: var(--color-ink); color: var(--color-on-ink); }
.skip:focus-visible { top: var(--space-md); }

/* ---------- card-stock controls ---------- */
.btn { --edge: 4px; display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 var(--space-lg); border: 0; border-radius: var(--radius-stock); font: 600 var(--text-md)/1 var(--font-body); white-space: nowrap; text-decoration: none; cursor: pointer; color: var(--color-ink); background: transparent; box-shadow: inset 0 0 0 var(--rule-bar) var(--color-ink), 0 var(--edge) 0 0 var(--color-ink); transition: transform var(--dur-micro) var(--ease-snap), box-shadow var(--dur-micro) var(--ease-snap); }
.btn:hover { --edge: 6px; transform: translateY(-2px); }
.btn:active { --edge: 1px; transform: translateY(3px); }
.btn:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 4px; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
.btn--primary { background: var(--color-accent); color: var(--color-accent-ink); box-shadow: inset 0 0 0 var(--rule-bar) var(--color-ink), 0 var(--edge) 0 0 var(--color-ink); transition-timing-function: var(--ease-spring); }
.btn--secondary { background: transparent; }
.btn--secondary:hover { background: color-mix(in oklab, var(--color-card) 70%, transparent); }
.chip { display: inline-flex; align-items: center; min-height: 28px; padding: 0 var(--space-sm); border-radius: var(--radius-cell); border: var(--rule-bar) solid var(--color-ink); font: 600 var(--text-sm)/1 var(--font-body); color: var(--color-ink); }
.chip--blue { background: var(--color-blue-soft); }
.chip--yellow { background: var(--color-yellow); }

/* ---------- nav ---------- */
.header { border-bottom: var(--rule-bar) solid var(--color-ink); background: var(--color-paper); }
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg); min-height: 76px; }
.logo { display: inline-flex; align-items: center; gap: var(--space-sm); font: var(--display-weight) var(--text-xl)/1 var(--font-display); letter-spacing: var(--tracking-display); color: var(--color-ink); text-decoration: none; }
.logo:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 4px; }
.logo__mark { flex-shrink: 0; }
.nav { display: flex; align-items: center; gap: var(--space-lg); }
.nav__links { display: flex; align-items: center; gap: var(--space-lg); }
.nav__links a { min-height: 44px; display: inline-flex; align-items: center; font-size: var(--text-md); font-weight: 600; color: var(--color-ink); text-decoration: none; }
.nav__links a:hover { text-decoration: underline; text-decoration-thickness: 2px; text-decoration-color: var(--color-accent); }
.nav__links a:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.nav__mobile-actions { display: none; }
.btn-login { min-height: 44px; padding: 0 var(--space-md); }
.hamburger { display: none; width: 44px; height: 44px; padding: var(--space-sm); border: var(--rule-bar) solid var(--color-ink); border-radius: var(--radius-stock); background: var(--color-card); cursor: pointer; flex-direction: column; justify-content: space-between; }
.hamburger:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.hamburger:active { transform: translateY(1px); }
.hamburger span { display: block; height: 2px; background: var(--color-ink); }

/* ---------- hero ---------- */
.hero { min-height: calc(100svh - 160px); display: grid; align-items: center; padding-block: var(--space-xl); }
.hero__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-3xl); align-items: center; }
.hero__text { display: grid; gap: var(--space-lg); justify-items: start; }
.hero__title { font-size: clamp(3rem, 6vw, 6rem); line-height: 0.98; max-width: 11ch; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: var(--space-md); }
.hero__how { list-style: none; margin: var(--space-xs) 0 0; padding: 0; display: grid; gap: var(--space-xs); color: var(--color-ink-2); }
.hero__how li { display: flex; align-items: center; gap: var(--space-sm); flex-wrap: wrap; }

.hero__desk { position: relative; overflow: visible; background: none; display: grid; }
.sheet { background: var(--color-card); border: var(--rule-bar) solid var(--color-ink); border-radius: var(--radius-card); box-shadow: var(--shadow-paper); }
.sheet__title { font: var(--display-weight) var(--text-title)/1.1 var(--font-display); color: var(--color-ink); margin-bottom: var(--space-md); }
.week { margin: 0; padding: var(--space-lg); width: 88%; transform: rotate(-1.2deg); }
.week__grid { width: 100%; border-collapse: collapse; table-layout: fixed; }
.week__grid th { font: 600 var(--text-sm)/1 var(--font-body); color: var(--color-muted); padding: 0 0 var(--space-xs); text-align: left; }
.week__grid tbody th { width: 2rem; font: var(--display-weight) var(--text-lg)/1 var(--font-display); color: var(--color-ink); padding: 0; }
.week__grid thead th:first-child { width: 2rem; }
.week__grid td { height: 64px; padding: var(--space-2xs); border: var(--rule-bar) solid var(--color-ink); vertical-align: top; position: relative; }
.tile { display: flex; align-items: flex-end; height: 100%; padding: var(--space-xs); border-radius: var(--radius-cell); font: 600 var(--text-sm)/1.1 var(--font-body); color: var(--color-ink); }
.t-y { background: var(--color-yellow); } .t-b { background: var(--color-blue-soft); } .t-m { background: var(--color-mint); } .t-c { background: var(--color-coral); }
.sticker { position: absolute; top: -12px; right: -10px; padding: var(--space-2xs) var(--space-xs); background: var(--color-accent); color: var(--color-accent-ink); border: var(--rule-bar) solid var(--color-ink); border-radius: var(--radius-cell); font: 600 var(--text-xs)/1 var(--font-body); transform: rotate(6deg); }
.week__changed { box-shadow: inset 0 0 0 2px var(--color-accent); }
.quiz { position: relative; z-index: 2; justify-self: end; margin-top: calc(-1 * var(--space-lg)); width: min(340px, 54%); padding: var(--space-lg); transform: rotate(2deg); display: grid; gap: var(--space-sm); }
.quiz__code { font-size: var(--text-sm); color: var(--color-muted); }
.quiz__code b { display: block; font: var(--display-weight) var(--text-2xl)/1 var(--font-display); color: var(--color-ink); }
.quiz__q { font-weight: 600; color: var(--color-ink); }
.quiz__answers { display: grid; gap: var(--space-xs); }
.answer { --edge: 3px; min-height: 44px; padding: 0 var(--space-md); text-align: left; border: 0; border-radius: var(--radius-stock); background: var(--color-paper-2); color: var(--color-ink); font: 600 var(--text-md)/1 var(--font-body); cursor: pointer; box-shadow: inset 0 0 0 var(--rule-bar) var(--color-ink), 0 var(--edge) 0 0 var(--color-ink); transition: transform var(--dur-micro) var(--ease-snap), box-shadow var(--dur-micro) var(--ease-snap), background-color var(--dur-micro) var(--ease-snap); }
.answer:hover { background: var(--color-yellow); }
.answer:active { --edge: 0px; transform: translateY(3px); }
.answer:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.answer.is-right { background: var(--color-mint); }
.answer.is-wrong { background: var(--color-coral); }
.quiz__result { min-height: 1lh; font-size: var(--text-sm); color: var(--color-ink-2); }
.hero__caption { margin-top: var(--space-sm); }

/* ---------- before and after ---------- */
.problems { padding-block: var(--section-gap-s) var(--section-gap); }
.problems h2 { margin-bottom: var(--space-2xl); }
.compare { width: 100%; border-collapse: collapse; border-top: var(--rule-box) solid var(--color-ink); }
.compare th { padding: var(--space-md) var(--space-lg) var(--space-md) 0; text-align: left; font: 600 var(--text-md)/1.2 var(--font-body); color: var(--color-muted); border-bottom: var(--rule-bar) solid var(--color-ink); }
.compare td { padding: var(--space-lg) var(--space-lg) var(--space-lg) 0; border-bottom: var(--rule-hair) solid var(--color-rule); vertical-align: top; width: 50%; }
.compare td:first-child { color: var(--color-muted); text-decoration: line-through; text-decoration-thickness: 1px; text-decoration-color: color-mix(in oklab, var(--color-muted) 60%, transparent); }
.compare td:last-child { font: var(--display-weight) var(--text-title)/1.25 var(--font-display); color: var(--color-ink); }

/* ---------- head blocks ---------- */
.head-split { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--gap-columns); align-items: end; margin-bottom: var(--space-2xl); }
.head-split > h2 { grid-column: 1 / span 6; }
.head-split > .lead { grid-column: 8 / span 5; }

/* ---------- products ---------- */
.modules { padding-block: var(--section-gap-s); }
.modules__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap-columns); }
.module-card { border: var(--rule-bar) solid var(--color-ink); border-radius: var(--radius-card); background: var(--color-card); box-shadow: var(--shadow-paper); overflow: hidden; }
.module-card__title { padding: var(--space-xl) var(--space-xl) var(--space-lg); font-size: var(--text-display-s); line-height: 1; border-bottom: var(--rule-bar) solid var(--color-ink); }
.module-card--blue .module-card__title { background: var(--color-blue-soft); }
.module-card--yellow .module-card__title { background: var(--color-yellow); }
.module-card__features { list-style: none; margin: 0; padding: var(--space-md) var(--space-xl) var(--space-xl); }
.modules__more { margin-top: var(--space-lg); }

/* ---------- failover minutes in boxed cells ---------- */
.uptime { padding-block: var(--section-gap) var(--section-gap-s); }
.uptime__timeline { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: var(--rule-box) solid var(--color-ink); border-radius: var(--radius-card); overflow: hidden; background: var(--color-card); }
.uptime__step { padding: var(--space-lg); border-left: var(--rule-bar) solid var(--color-ink); display: grid; align-content: start; gap: var(--space-sm); }
.uptime__step:first-child { border-left: 0; }
.uptime__time { font: var(--display-weight) var(--text-display)/1 var(--font-display); color: var(--color-ink); font-variant-numeric: tabular-nums; }
.uptime__event { font-size: var(--text-title); line-height: 1.15; }
.uptime__desc { font-size: var(--text-md); }
.uptime__step--final { background: var(--color-mint); }

/* the one ink sheet, torn along its top */
.band-ink { background: var(--color-ink); color: var(--color-on-ink); clip-path: var(--torn-top); margin-top: var(--space-2xl); }
.band-ink::after { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: var(--grain-light); background-size: 200px 200px; opacity: var(--texture-opacity); }
.proof { padding-block: var(--section-gap-s); }
.proof__statement { font: var(--display-weight) var(--text-display)/1 var(--font-display); letter-spacing: var(--tracking-display); color: var(--color-on-ink); max-width: 14ch; }
.proof__lead { margin-top: var(--space-lg); color: var(--color-on-ink); max-width: 48ch; }
.uptime__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-columns); margin-top: var(--space-2xl); }
.uptime__card { padding-top: var(--space-md); border-top: var(--rule-bar) solid var(--color-yellow); }
.uptime__card-title { font-size: var(--text-title); color: var(--color-on-ink); margin-bottom: var(--space-sm); }
.uptime__card-desc { color: var(--color-on-ink); }

/* ---------- how a teacher starts ---------- */
.steps { padding-block: var(--section-gap); }
.steps__grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-columns); counter-reset: step; }
.step-card { counter-increment: step; display: grid; gap: var(--space-sm); align-content: start; padding: var(--space-xl); border: var(--rule-bar) solid var(--color-ink); border-radius: var(--radius-card); background: var(--color-card); box-shadow: var(--shadow-paper); }
.step-card::before { content: counter(step); display: grid; place-items: center; width: 56px; height: 56px; margin-bottom: var(--space-xs); border: var(--rule-bar) solid var(--color-ink); border-radius: var(--radius-stock); background: var(--color-yellow); box-shadow: 0 4px 0 0 var(--color-ink); font: var(--display-weight) var(--text-2xl)/1 var(--font-display); color: var(--color-ink); }
.step-card__title { font-size: var(--text-title); }

/* ---------- pricing ---------- */
.band-paper { background: var(--color-paper-2); border-block: var(--rule-bar) solid var(--color-ink); }
.pricing { padding-block: var(--section-gap-s); }
.pricing__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-columns); align-items: stretch; }
.price-card { display: grid; grid-template-rows: auto auto 1fr auto auto; gap: var(--space-md); padding: var(--space-xl); border: var(--rule-bar) solid var(--color-ink); border-radius: var(--radius-card); background: var(--color-card); box-shadow: var(--shadow-paper); justify-items: start; }
.price-card__name { font-size: var(--text-title); font-variant-numeric: tabular-nums; }
.price-card__desc { font: var(--display-weight) var(--text-xl)/1.2 var(--font-display); color: var(--color-ink); font-variant-numeric: tabular-nums; }
.price-card__features { list-style: none; margin: 0; padding: 0; align-self: start; }
.price-card__features li { padding-block: var(--space-xs); border-top: var(--rule-hair) solid var(--color-rule); }
.price-card--featured { border-width: var(--rule-box); }
.price-card__badge { font-size: var(--text-sm); font-weight: 600; color: var(--color-ink); }

/* ---------- questions ---------- */
.faq { padding-block: var(--section-gap) var(--section-gap-s); }
.faq__layout { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--gap-columns); }
.faq__layout > h2 { grid-column: 1 / span 4; align-self: start; }
.faq__list { grid-column: 6 / span 7; border-top: var(--rule-box) solid var(--color-ink); }
.faq__item { border-bottom: var(--rule-hair) solid var(--color-rule); }
.faq__question { display: flex; justify-content: space-between; gap: var(--space-lg); align-items: center; min-height: 44px; padding-block: var(--space-lg); font: var(--display-weight) var(--text-lg)/1.3 var(--font-display); color: var(--color-ink); cursor: pointer; list-style: none; }
.faq__question::-webkit-details-marker { display: none; }
.faq__question::after { content: "+"; display: grid; place-items: center; width: 36px; height: 36px; flex-shrink: 0; border: var(--rule-bar) solid var(--color-ink); border-radius: var(--radius-cell); background: var(--color-card); font: var(--display-weight) var(--text-lg)/1 var(--font-display); transition: transform var(--dur-micro) var(--ease-snap), background-color var(--dur-micro) var(--ease-snap); }
.faq__item[open] .faq__question::after { transform: rotate(45deg); background: var(--color-yellow); }
.faq__question:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.faq__answer-inner { padding-bottom: var(--space-lg); max-width: 62ch; }

/* ---------- close ---------- */
.cta-final { padding-block: var(--space-2xl) var(--section-gap); }
.cta-final__box { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--space-lg) var(--gap-columns); padding: var(--space-2xl); border: var(--rule-box) solid var(--color-ink); border-radius: var(--radius-card); background: var(--color-yellow); box-shadow: var(--shadow-paper); }
.cta-final__title { grid-column: 1 / span 6; font-size: var(--text-display); }
.cta-final__sub { grid-column: 7 / span 6; align-self: end; color: var(--color-ink); }
.cta-final__act { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-lg); }
.cta-final__mail { color: var(--color-ink); }
.cta-final__mail a { color: var(--color-ink); text-decoration-thickness: 2px; }

/* ---------- footer ---------- */
.footer { padding-block: var(--space-3xl) var(--space-xl); border-top: var(--rule-bar) solid var(--color-ink); }
.footer__grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 2fr) minmax(0, 3fr) minmax(0, 3fr); gap: var(--gap-columns); }
.footer__logo { display: flex; align-items: center; gap: var(--space-sm); font: var(--display-weight) var(--text-xl)/1 var(--font-display); color: var(--color-ink); }
.footer__desc { margin-top: var(--space-md); max-width: 32ch; }
.footer__col-title { font-size: var(--text-sm); color: var(--color-muted); margin-bottom: var(--space-sm); }
.footer__link { display: block; padding-block: var(--space-2xs); color: var(--color-ink); text-decoration: none; }
.footer__link:hover { text-decoration: underline; text-decoration-color: var(--color-accent); }
.footer__link:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.footer__bottom { margin-top: var(--space-2xl); padding-top: var(--space-md); border-top: var(--rule-hair) solid var(--color-rule); font-size: var(--text-sm); color: var(--color-muted); }

/* ---------- login dialog ---------- */
.modal { position: fixed; inset: 0; z-index: var(--z-modal); display: none; place-items: center; padding: var(--space-md); }
.modal.open { display: grid; }
.modal__overlay { position: absolute; inset: 0; background: color-mix(in oklab, var(--color-ink) 55%, transparent); }
.modal__content { position: relative; width: min(30rem, 100%); padding: var(--space-xl); display: grid; gap: var(--space-md); border: var(--rule-box) solid var(--color-ink); border-radius: var(--radius-card); background: var(--color-card); box-shadow: var(--shadow-paper); }
.modal__close { position: absolute; top: var(--space-xs); right: var(--space-xs); width: 44px; height: 44px; border: 0; background: transparent; font-size: var(--text-xl); cursor: pointer; color: var(--color-ink); border-radius: var(--radius-stock); }
.modal__close:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 0; }
.modal__title { font-size: var(--text-xl); padding-right: var(--space-xl); }
.modal__subtitle { font-size: var(--text-sm); }
.modal__form { display: grid; gap: var(--space-md); }
.modal__input-group { display: grid; gap: var(--space-xs); }
.modal__label { font-size: var(--text-sm); font-weight: 600; color: var(--color-ink); }
.modal__input-wrapper { display: flex; align-items: stretch; border: var(--rule-bar) solid var(--color-ink); border-radius: var(--radius-stock); background: var(--color-paper); }
.modal__input-wrapper:focus-within { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.modal__input { flex: 1; min-width: 0; min-height: 52px; padding: 0 var(--space-md); border: 0; background: transparent; color: var(--color-ink); font-size: var(--text-md); outline: none; }
.modal__input:disabled { opacity: 0.55; cursor: not-allowed; }
.modal__domain { display: flex; align-items: center; padding-right: var(--space-md); color: var(--color-muted); }
.modal__error { min-height: 1lh; font-size: var(--text-sm); color: var(--color-error); visibility: hidden; }
.modal__error.visible { visibility: visible; }
.modal__submit-btn { justify-self: start; }

/* ---------- narrow ---------- */
@media (max-width: 60rem) {
  .nav__links { display: none; position: absolute; left: 0; right: 0; top: 100%; z-index: var(--z-dropdown); flex-direction: column; align-items: stretch; gap: 0; padding: var(--space-md) var(--gutter); background: var(--color-card); border-bottom: var(--rule-bar) solid var(--color-ink); }
  .nav__links.open { display: flex; }
  .nav__mobile-actions { display: block; padding-top: var(--space-sm); }
  .nav__desktop-actions { display: none; }
  .hamburger { display: flex; }
  .hero { min-height: 0; }
  .hero__grid, .modules__grid, .steps__grid, .pricing__grid, .uptime__grid { grid-template-columns: minmax(0, 1fr); }
  .hero__desk { min-height: 0; display: grid; gap: var(--space-lg); }
  .week { width: 100%; transform: none; }
  .quiz { width: 100%; margin-top: 0; transform: none; }
  .hero__caption { margin-top: 0; max-width: none; }
  .head-split, .faq__layout, .cta-final__box { grid-template-columns: minmax(0, 1fr); }
  .head-split > h2, .head-split > .lead, .faq__layout > h2, .faq__list, .cta-final__title, .cta-final__sub { grid-column: 1; }
  .uptime__timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .uptime__step:nth-child(3) { border-left: 0; }
  .uptime__step:nth-child(n + 3) { border-top: var(--rule-bar) solid var(--color-ink); }
  .compare, .compare tbody, .compare tr, .compare td { display: block; width: auto; }
  .compare thead { display: none; }
  .compare tr { padding-block: var(--space-md); border-bottom: var(--rule-hair) solid var(--color-rule); }
  .compare td { padding: 0; border: 0; }
  .compare td:first-child { margin-bottom: var(--space-2xs); }
  .cta-final__box { padding: var(--space-xl); }
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 40rem) {
  .uptime__timeline { grid-template-columns: minmax(0, 1fr); }
  .uptime__step { border-left: 0; }
  .uptime__step + .uptime__step { border-top: var(--rule-bar) solid var(--color-ink); }
  .week__grid td { height: 48px; }
  .tile { font-size: 0; padding: var(--space-2xs); }
  .tile::after { content: attr(data-s); font: 600 var(--text-xs)/1 var(--font-body); }
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .btn, .answer, .faq__question::after { transition: none; }
}

/* ---------- first screen: proof line and the change notice ---------- */
.hero__title { max-width: 13ch; }
.hero__proof { max-width: 44ch; padding-left: var(--space-md); border-left: var(--rule-box) solid var(--color-mint); color: var(--color-ink-2); }
.hero__proof b { color: var(--color-ink); font-variant-numeric: tabular-nums; }
.notice { position: relative; z-index: 2; justify-self: end; margin-top: calc(-1 * var(--space-lg)); width: min(340px, 56%); padding: var(--space-md) var(--space-lg); transform: rotate(2deg); display: grid; gap: var(--space-2xs); box-shadow: inset 6px 0 0 var(--color-accent), var(--shadow-paper); }
.notice__from { font-size: var(--text-xs); color: var(--color-muted); }
.notice__title { font: var(--display-weight) var(--text-lg)/1.2 var(--font-display); color: var(--color-ink); }
.notice__text { color: var(--color-ink-2); }

/* ---------- the teacher's door ---------- */
.door { background: var(--color-yellow); border-block: var(--rule-bar) solid var(--color-ink); }
.door__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg); padding-block: var(--space-lg); }
.door__text { color: var(--color-ink); max-width: 70ch; }
.door__text b { font-family: var(--font-display); }

/* ---------- the timetable card, features in two columns ---------- */

/* ---------- Kvestnik ---------- */
.kvestnik { padding-block: var(--section-gap) var(--space-2xl); }
.kvestnik__grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-2xl); align-items: start; }
.kvestnik__try { display: grid; gap: var(--space-md); }
.kvestnik .quiz { position: relative; margin-top: 0; width: 100%; justify-self: stretch; transform: rotate(-1deg); }
.compare--small { border-top-width: var(--rule-bar); margin-top: var(--space-lg); }
.compare--small td { padding-block: var(--space-md); }
.compare--small td:last-child { font-size: var(--text-lg); }
@media (max-width: 60rem) {
  .notice { width: 100%; margin-top: 0; transform: none; }
  .door__inner { flex-direction: column; align-items: flex-start; }
  .kvestnik__grid { grid-template-columns: minmax(0, 1fr); }
  .kvestnik .quiz { transform: none; }
}

/* ---------- the week, as the SHKKRIT light theme draws its Calendar view (CalendarView.tsx) ---------- */
.hero__desk { gap: var(--space-xs); }
.cal { display: grid; grid-template-columns: 104px repeat(3, minmax(0, 1fr)); gap: var(--space-sm); font-family: var(--font-sk); color: var(--sk-text); }
.cal__corner, .cal__time { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; background: var(--sk-card); border: 4px solid var(--sk-line); border-radius: 8px; box-shadow: 4px 4px 0 var(--color-accent); font-weight: 700; }
.cal__corner { padding: var(--space-sm); font-size: 16px; letter-spacing: 0.05em; }
.cal__time { padding: var(--space-sm) var(--space-xs); gap: var(--space-2xs); }
.cal__pair { font-size: 16px; letter-spacing: 0.05em; }
.cal__span { font-size: 12px; opacity: 0.92; font-variant-numeric: tabular-nums; }
.cal__day { position: relative; display: flex; flex-direction: column; justify-content: space-between; gap: var(--space-xs); min-height: 72px; padding: var(--space-sm); background: var(--sk-card); border: 4px solid var(--sk-line); border-radius: 12px; box-shadow: 6px 6px 0 var(--color-accent); }
.cal__day--today { border-color: var(--color-accent); box-shadow: 6px 6px 0 color-mix(in srgb, var(--color-accent) 25%, transparent); }
.cal__wd { font-size: 14px; font-weight: 700; opacity: 0.9; }
.cal__date { font-size: 14px; opacity: 0.75; }
.cal__changed { position: absolute; left: calc(50% - 7px); bottom: 4px; width: 14px; height: 4px; border-radius: 2px; background: var(--sk-warn); }
.cal__tile { position: relative; overflow: hidden; display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-2xs); min-height: 132px; padding: var(--sk-tile-pad); background: var(--sk-card); border: 4px solid var(--sk-line); border-radius: 20px; box-shadow: 6px 6px 0 var(--color-accent); }
.cal__head { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sk-tag-gap); }
.cal__num { padding: var(--sk-chip-s); background: var(--color-accent); border: 3px solid var(--sk-line); border-radius: 6px; box-shadow: 2px 2px 0 var(--color-accent); font-size: 12px; font-weight: 600; }
.cal__title { font-size: 14px; font-weight: 700; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.cal__who { max-width: 100%; padding: var(--sk-chip-m); background: var(--color-accent); border: 3px solid var(--sk-line); border-radius: 6px; box-shadow: 2px 2px 0 var(--color-accent); font-size: 12px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cal__room { padding: var(--sk-chip-r); background: var(--sk-room-bg); border: 2px solid var(--sk-room-line); border-radius: 4px; font-size: 12px; font-weight: 700; color: var(--sk-room-text); }
.cal__stripe { position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--sk-warn); }
.cal__change { display: inline-flex; align-items: center; gap: var(--sk-tag-gap); padding: var(--sk-tag-pad); border-radius: 8px; background: color-mix(in srgb, var(--sk-warn) 16%, transparent); color: var(--sk-warn); font-size: 11px; font-weight: 800; line-height: 1.3; }
.cal__change svg { width: 14px; height: 14px; fill: currentColor; }
.cal__empty { min-height: 132px; border: 3px dashed var(--sk-line); border-radius: 12px; }
.hero__caption { margin-top: var(--space-xs); }

/* ---------- the student's phone, as Kvestnik draws a live question (play/[pin]/page.tsx, templates/quiz/play.tsx) ---------- */
.play { width: 100%; max-width: 400px; justify-self: end; display: grid; gap: var(--space-sm); padding: var(--play-pad); border-radius: 28px; background: var(--play-bg); color: var(--play-text); font-family: var(--font-body); box-shadow: var(--q-shadow); }
.play__bar { display: flex; justify-content: space-between; align-items: center; }
.play__count { padding: var(--q-tag-pad); background: var(--q-khaki); color: color-mix(in srgb, var(--q-ink) 70%, transparent); font-size: 13px; line-height: 1.4; }
.play__score { padding: var(--q-tag-pad); background: var(--q-khaki); color: color-mix(in srgb, var(--q-ink) 70%, transparent); font: 700 12px/1.4 var(--font-q-mono); }
.play__timer-track { height: 6px; background: color-mix(in srgb, var(--play-text) 10%, transparent); }
.play__timer-track i { display: block; height: 100%; width: 100%; background: var(--play-text); transform-origin: left center; transform: scaleX(0.62); }
.play__secs { text-align: center; font: 700 3rem/1 var(--font-q-mono); color: var(--play-text); font-variant-numeric: tabular-nums; }
.play__paper { background: var(--q-khaki); color: var(--q-ink); padding: var(--space-lg); }
.play__q { text-align: center; font: 700 var(--text-xl)/1.35 var(--font-q-display); }
.play__answers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-2xs); padding: var(--space-md); }
.qcard .play__a { --edge: 0px; position: relative; display: flex; align-items: flex-start; gap: var(--space-sm); min-height: 84px; padding: var(--play-tile-pad); border: 4px solid transparent; border-radius: 0; box-shadow: none; text-align: left; transform: none; transition: border-color var(--dur-short) var(--ease-out), opacity var(--dur-short) var(--ease-out); }
.qcard .play__a--1 { background: var(--play-a1); color: var(--play-a-ink); }
.qcard .play__a--2 { background: var(--play-a2); color: var(--play-a-ink); }
.qcard .play__a--3 { background: var(--play-a3); color: var(--play-text); }
.qcard .play__a--4 { background: var(--play-a4); color: var(--play-text); }
.qcard .play__a:hover { filter: brightness(1.05); }
.qcard .play__a:active { transform: translateY(1px); }
.qcard .play__a:focus-visible { outline: 3px solid var(--play-text); outline-offset: 2px; }
.play__n { font: 700 14px/1.3 var(--font-q-mono); flex-shrink: 0; }
.play__a svg { width: 24px; height: 24px; flex-shrink: 0; fill: currentColor; }
.play__t { flex: 1; min-width: 0; font: 600 16px/1.3 var(--font-body); }
.play__name { position: absolute; right: var(--space-xs); bottom: var(--space-2xs); font: 700 11px/1.2 var(--font-q-mono); }
.qcard .play__a.is-right { border-color: var(--play-ok); }
.qcard .play__a.is-wrong { border-color: var(--play-fail); }
.qcard .play__a.is-dim { opacity: 0.35; }
.play__verdict { min-height: 44px; display: grid; place-items: center; }
.play__verdict p { padding: var(--space-xs) var(--space-md); background: var(--q-khaki); font-size: 14px; font-weight: 600; color: var(--q-ink); }
.play__verdict p:empty { display: none; }
.qcard:has(.is-right) .play__verdict p { color: var(--play-ok-text); }
.qcard:has(.is-wrong) .play__verdict p { color: var(--play-fail-text); }
@media (max-width: 60rem) {
  .play { justify-self: stretch; max-width: none; }
}
@media (max-width: 40rem) {
  .cal { grid-template-columns: 76px repeat(2, minmax(0, 1fr)); gap: var(--space-xs); }
  .cal .cal__c3 { display: none; }
  .cal__pair, .cal__corner { font-size: 13px; }
  .cal__time { padding: var(--space-xs) var(--space-2xs); }
  .play__answers { grid-template-columns: minmax(0, 1fr); }
}
/* ---------- hero: text on top, the calendar full width below, as wide as the module draws it ---------- */
.hero { min-height: 0; padding-block: var(--space-2xl) var(--space-xl); }
.hero__grid { grid-template-columns: minmax(0, 1fr); gap: var(--space-2xl); }
.hero__text { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); column-gap: var(--space-3xl); align-items: end; }
.hero__title { grid-row: 1 / span 3; max-width: 13ch; font-size: clamp(3rem, 5.2vw, 5.25rem); }
.hero__text > :not(.hero__title) { grid-column: 2; }
.cal { grid-template-columns: 104px repeat(5, minmax(0, 1fr)); }
.play { max-width: 520px; justify-self: stretch; }
.play__t { overflow-wrap: break-word; hyphens: auto; }
@media (max-width: 60rem) {
  .hero__text { grid-template-columns: minmax(0, 1fr); }
  .hero__title { grid-row: auto; }
  .hero__text > :not(.hero__title) { grid-column: 1; }
  .cal { grid-template-columns: 90px repeat(3, minmax(0, 1fr)); }
  .cal .cal__c4 { display: none; }
}
@media (max-width: 40rem) {
  .cal { grid-template-columns: 76px repeat(2, minmax(0, 1fr)); }
}

/* ---------- EK-UI: icons from blocks, lesson tile mark and teacher wave (ek-ui/*.css, copied from packages/ek-ui core) ---------- */
:root { --accent-color: var(--color-accent); }
.btn, .btn-login { gap: var(--space-sm); }
.btn--primary { --accent-color: var(--color-card); }
.hamburger { justify-content: center; align-items: center; color: var(--color-ink); }
.ek-tile-in { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-2xs); width: 100%; min-width: 0; }

/* ---------- brand pass (E:/edulanding/DESIGN.md): khaki, ink, rust; square corners; 1.5px rules; hard shadows; 60px grid; mono caps labels ---------- */
body::before { background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px); background-size: 60px 60px; opacity: 1; }
h1, h2, h3, .logo, .footer__logo { font-family: var(--font-display); font-weight: var(--display-weight); letter-spacing: var(--tracking-display); }
.hero__title { font-size: clamp(2.4rem, 4.4vw, 4rem); line-height: 1.04; max-width: 14ch; }
a { color: var(--color-ink); text-decoration-color: var(--color-accent); text-underline-offset: 3px; }
.tag, .nav__links a, .caption, .price-card__badge, .footer__title { font: 600 var(--text-xs)/1.4 var(--font-mono); text-transform: uppercase; letter-spacing: var(--tracking-label); }
.tag { display: inline-flex; align-items: center; gap: var(--space-xs); margin: 0; color: inherit; }
.tag::before { content: ""; width: 8px; height: 8px; background: var(--color-accent); flex: none; }
.nav__links a:hover { color: var(--color-accent); }

/* buttons: the brand's, no edge shadow; hover lifts 2px */
.btn { --edge: 0px; box-shadow: inset 0 0 0 var(--rule-bar) var(--color-ink); transition: transform var(--dur-short) var(--ease-snap), background-color var(--dur-short) var(--ease-snap); }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(1px); }
.btn--primary { box-shadow: inset 0 0 0 var(--rule-bar) var(--color-ink); }
.btn--primary:hover { background: var(--color-accent-deep); }
.btn--secondary:hover { background: var(--color-accent); }

/* product cards: an ink head on the grid, the features as a board of ruled cells */
.module-card { border: var(--rule-bar) solid var(--color-ink); background: var(--color-card); box-shadow: var(--shadow-hard); overflow: hidden; }
.module-card__head { position: relative; display: grid; gap: var(--space-md); padding: var(--space-xl); border-bottom: var(--rule-bar) solid var(--color-ink); background-color: var(--color-ink); background-image: linear-gradient(var(--grid-line-ink) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line-ink) 1px, transparent 1px); background-size: 60px 60px; color: var(--color-on-ink-2); }
.module-card .module-card__title { padding: 0; border: 0; background: none; font-size: var(--text-display-s); color: var(--color-on-ink); }
.module-card--yellow .module-card__head { background-color: var(--color-accent); background-image: linear-gradient(var(--grid-line-rust) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line-rust) 1px, transparent 1px); color: var(--color-ink); }
.module-card--yellow .module-card__title { color: var(--color-ink); }
.module-card--yellow .tag::before { background: var(--color-ink); }
.module-card__features { display: grid; grid-template-columns: repeat(auto-fill, minmax(232px, 1fr)); padding: 0; counter-reset: feat; }
.feat { counter-increment: feat; display: grid; grid-template-columns: 52px minmax(0, 1fr); align-items: start; gap: var(--space-md); min-height: 128px; padding: var(--space-lg) var(--space-lg) var(--space-lg) var(--space-lg); border: 0; box-shadow: 0 0 0 0.75px var(--color-ink), inset 0 0 0 0.75px var(--color-ink); background: var(--color-card); }
.module-card__features .feat { border-bottom: 0; padding-block: var(--space-lg); }
.feat > * { position: relative; z-index: 1; }
.feat__icon { display: grid; place-items: center; width: 52px; height: 52px; border: var(--rule-bar) solid var(--color-ink); background: var(--color-paper); color: var(--color-ink); }
.feat__t { display: grid; gap: var(--space-2xs); color: var(--color-ink); font-size: var(--text-md); line-height: 1.45; }
.feat__t::before { content: counter(feat, decimal-leading-zero); font: 600 var(--text-xs)/1 var(--font-mono); letter-spacing: var(--tracking-label); color: var(--color-muted); }
@media (hover: hover) and (pointer: fine) {
  .feat:hover .feat__t::before { color: var(--color-accent-deep); }
}

/* everything else that used the old hues */
.hero__proof { border-left-color: var(--color-accent); }
.door { background: var(--color-ink); color: var(--color-on-ink); border-block: 0; }
.door__text, .door__text b { color: var(--color-on-ink); }
.door .btn--secondary { color: var(--color-on-ink); box-shadow: inset 0 0 0 var(--rule-bar) var(--color-accent); }
.door .btn--secondary:hover { color: var(--color-ink); }
.band-ink { clip-path: none; background-image: linear-gradient(var(--grid-line-ink) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line-ink) 1px, transparent 1px); background-size: 60px 60px; }
.band-ink::after { content: none; }
.uptime__timeline { border-width: var(--rule-bar); box-shadow: var(--shadow-hard); }
.uptime__step--final { background: var(--color-accent); }
.uptime__card { border-top-color: var(--color-accent); }
.step-card, .price-card { box-shadow: none; transition: transform var(--dur-short) var(--ease-snap), box-shadow var(--dur-short) var(--ease-snap); }
@media (hover: hover) and (pointer: fine) {
  .step-card:hover, .price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hard); }
}
.step-card::before { border-radius: 0; background: var(--color-accent); box-shadow: none; }
.faq__question::after { border-radius: 0; }
.faq__item[open] .faq__question::after { background: var(--color-accent); }
.cta-final__box { background: var(--color-ink); color: var(--color-on-ink); box-shadow: none; }
.cta-final__box h2, .cta-final__box p { color: var(--color-on-ink); }
.cta-final__box .btn--primary { box-shadow: inset 0 0 0 var(--rule-bar) var(--color-accent); }
.modal__content { box-shadow: var(--shadow-hard); }
@media (prefers-reduced-motion: reduce) {
  .step-card, .price-card, .btn { transition: none; }
}
.kvestnik .module-card__features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.kvestnik .feat:first-child { grid-column: 1 / -1; }
@media (max-width: 40rem) {
  .kvestnik .module-card__features { grid-template-columns: minmax(0, 1fr); }
}
.cta-final__box a:not(.btn), .door a:not(.btn) { color: var(--color-on-ink); }
.feat.ek-tile::after { content: none; }
.btn--secondary:hover, .btn--secondary:focus-visible { --accent-color: var(--color-card); }