/* Входная диагностика. Только переменные платформы; рукописный шрифт «Тетради» — с запасным. */
.bzd { display: flex; flex-direction: column; gap: var(--bz-gap, 20px); min-width: 0; }
.bzd-title { font-family: var(--bz-hand, var(--bz-font-d)); color: var(--bz-ink); font-size: clamp(28px, 4.2vw, 42px); line-height: 1.1; margin: 0; letter-spacing: -.01em; overflow-wrap: anywhere; }
.bz-skin-tetrad .bzd-title { font-size: clamp(34px, 5vw, 50px); font-weight: 700; }
.bzd-h2 { font-family: var(--bz-font-d); color: var(--bz-ink); font-size: 21px; line-height: 1.25; margin: 0 0 14px; }
.bzd-sub { margin: 18px 0 10px; font-size: 13px; letter-spacing: .06em; text-transform: uppercase; color: var(--bz-mute); font-weight: 700; }
.bzd-lead { margin: 0; font-size: 17px; color: var(--bz-text); max-width: 720px; }
.bzd-head, .bzd-hero { display: flex; flex-direction: column; gap: 10px; }
.bzd-head .bz-eyebrow, .bzd-hero .bz-eyebrow { margin: 0; }
.bzd-head .bz-crumbs { margin: 0; }
.bzd-small { font-size: 13px; margin: 0; }
.bzd-hint { margin: 14px 0 0; font-size: 14px; }

/* ---------- шаги ---------- */
.bzd-steps { position: relative; padding-top: 2px; }
.bzd-steps ol { list-style: none; margin: 0; padding: 0; display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 8px; position: relative; }
.bzd-steps li { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; color: var(--bz-mute); font-size: 13px; font-weight: 600; min-width: 0; }
.bzd-steps-n { width: 32px; height: 32px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; background: var(--bz-panel); border: 2px solid var(--bz-line); color: var(--bz-mute); font-weight: 800; font-size: 14px; position: relative; z-index: 1; transition: background-color .3s, border-color .3s, color .3s; }
.bzd-steps li.is-done .bzd-steps-n { background: var(--bz-ok-bg); border-color: var(--bz-ok); color: var(--bz-ok-ink); }
.bzd-steps li.is-cur .bzd-steps-n { background: var(--bz-acc); border-color: var(--bz-acc); color: var(--bz-on-acc); box-shadow: 0 0 0 5px var(--bz-acc-soft); }
.bzd-steps li.is-cur { color: var(--bz-ink); }
.bzd-steps-t { overflow-wrap: anywhere; line-height: 1.25; }
.bzd-steps-bar { position: absolute; top: 17px; height: 4px; border-radius: 4px; background: var(--bz-line); overflow: hidden; }
.bzd-steps-bar i { display: block; height: 100%; background: var(--bz-ok); border-radius: inherit; transition: width .6s cubic-bezier(.2,.8,.2,1); }
/* полоса — от центра первого шага до центра последнего: ширина колонки зависит от числа шагов */
.bzd-steps:has(li:nth-child(4)) .bzd-steps-bar { left: 12.5%; right: 12.5%; }
.bzd-steps:not(:has(li:nth-child(4))) .bzd-steps-bar { left: 16.6%; right: 16.6%; }

/* ---------- шаг 1 ---------- */
.bzd-facts { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 22px; color: var(--bz-mute); font-size: 15px; }
.bzd-facts li { display: inline-flex; align-items: center; gap: 8px; }
.bzd-facts b { color: var(--bz-ink); }
.bzd-facts .bz-ic { color: var(--bz-acc-ink); }
.bzd-facts-hero { margin-top: 4px; }
.bzd-pick { min-width: 0; }
.bzd-pick > .bzd-h2 { margin-bottom: 0; }
.bzd-exams { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr)); gap: 12px; }
.bzd-exam { position: relative; display: flex; flex-direction: column; gap: 4px; min-height: 104px; padding: 18px 52px 18px 20px; border-radius: var(--bz-radius); border: 2px solid var(--bz-line); background: var(--bz-panel); color: var(--bz-ink) !important; text-decoration: none; box-shadow: var(--bz-shadow); transition: transform .15s ease, border-color .2s, background-color .2s; }
.bzd-exam:hover, .bzd-exam:focus-visible { border-color: var(--bz-acc); transform: translateY(-2px); }
.bzd-exam-n { font-family: var(--bz-font-d); font-size: 22px; font-weight: 800; line-height: 1.15; }
.bz-skin-tetrad .bzd-exam-n { font-family: var(--bz-hand, var(--bz-font-d)); font-size: 30px; font-weight: 700; }
.bzd-exam-d { font-size: 14px; color: var(--bz-mute); }
.bzd-exam-go { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); width: 34px; height: 34px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; background: var(--bz-acc-soft); color: var(--bz-acc-ink); transition: transform .2s; }
.bzd-exam:hover .bzd-exam-go { transform: translate(3px, -50%); }
.bzd-mine { align-self: flex-start; margin-top: 4px; padding: 2px 10px; border-radius: var(--bz-pill); background: var(--bz-ok-bg); color: var(--bz-ok-ink); font-size: 12px; font-weight: 700; }
.bzd-exam.is-mine, .bzd-grade.is-mine { border-color: var(--bz-ok); }
.bzd-grades { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); gap: 10px; }
.bzd-grade { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0; min-height: 84px; border-radius: var(--bz-radius); border: 2px solid var(--bz-line); background: var(--bz-panel); color: var(--bz-ink) !important; text-decoration: none; transition: transform .15s ease, border-color .2s, background-color .2s; }
.bzd-grade b { font-family: var(--bz-font-d); font-size: 30px; line-height: 1; }
.bz-skin-tetrad .bzd-grade b { font-family: var(--bz-hand, var(--bz-font-d)); font-size: 40px; }
.bzd-grade span { font-size: 13px; color: var(--bz-mute); }
.bzd-grade:hover, .bzd-grade:focus-visible { border-color: var(--bz-acc); background: var(--bz-acc-soft); transform: translateY(-2px); }
.bzd-past ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.bzd-past li { display: flex; flex-wrap: wrap; gap: 4px 12px; }
.bzd-past a { font-weight: 700; }

/* ---------- шаг 2: задания ---------- */
.bzd-test { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.bzd-bar { position: sticky; top: 8px; z-index: 5; display: flex; flex-direction: column; gap: 8px; padding: 12px 16px; border-radius: var(--bz-radius); background: var(--bz-panel); border: 1px solid var(--bz-line); box-shadow: 0 6px 18px rgba(0,0,0,.06); }
.bzd-bar-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 16px; font-size: 14px; font-weight: 600; color: var(--bz-mute); }
.bzd-bar-row b { color: var(--bz-ink); }
.bzd-prog { height: 8px; border-radius: var(--bz-pill); background: var(--bz-soft); overflow: hidden; }
.bzd-prog i { display: block; height: 100%; width: 0; border-radius: inherit; background: var(--bz-acc); transition: width .45s cubic-bezier(.2,.8,.2,1); }
.bzd-dots { display: flex; flex-wrap: wrap; gap: 6px; }
.bzd-dot, body.bz .bzd-dot { width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--bz-line); background: var(--bz-bg); color: var(--bz-mute); font-weight: 700; font-size: 14px; cursor: pointer; padding: 0; transition: background-color .2s, color .2s; }
body.bz .bzd-dot.is-done { background: var(--bz-acc-soft); color: var(--bz-acc-ink); border-color: transparent; }
body.bz .bzd-dot.is-skip { background: var(--bz-warn-bg); color: var(--bz-warn-ink); border-color: transparent; }
body.bz .bzd-dot.is-cur { background: var(--bz-acc); color: var(--bz-on-acc); border-color: transparent; }
.bzd-q { display: flex; flex-direction: column; gap: 16px; }
.bzd-q.is-enter { animation: bzdIn .35s cubic-bezier(.2,.8,.2,1) both; }
.bzd-q-h { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 14px; }
.bzd-q-t { display: flex; align-items: center; gap: 10px; margin: 0; font-family: var(--bz-font-d); font-size: 17px; color: var(--bz-ink); line-height: 1.3; min-width: 0; }
.bzd-q-t:focus { outline: none; }
.bzd-q-n { flex: none; width: 34px; height: 34px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; background: var(--bz-acc-soft); color: var(--bz-acc-ink); font-weight: 800; font-size: 15px; }
.bzd-q-b { min-width: 0; }
.bzd-q-b .bz-task-img img { max-width: min(100%, 420px); height: auto; }
.bzd-common { margin: 0 0 12px; padding: 10px 14px; border-radius: var(--bz-radius-sm); background: var(--bz-soft); }
.bzd-common summary { cursor: pointer; font-weight: 700; color: var(--bz-ink); display: flex; gap: 8px; align-items: center; }
.bzd-common > div { margin-top: 10px; font-size: 16px; overflow-x: auto; }
.bzd-ans { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; padding-top: 4px; }
.bzd-ans-l { font-weight: 700; color: var(--bz-ink); }
.bzd-ans-in, body.bz .bzd-ans-in { width: min(100%, 260px); min-height: 52px; padding: 0 16px; border-radius: var(--bz-radius-sm); border: 2px solid var(--bz-line); background: var(--bz-bg); color: var(--bz-ink); font-size: 19px; font-weight: 600; transition: border-color .2s, box-shadow .2s; }
.bzd-ans-in:focus { border-color: var(--bz-acc); outline: none; box-shadow: 0 0 0 3px var(--bz-acc-soft); }
.bzd-q-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding-top: 6px; border-top: 1px dashed var(--bz-line); }
.bzd-q-nav { padding-top: 14px; }
.bzd-q-sp { flex: 1; }
.bzd-ah { margin: 0; flex-basis: 100%; font-size: 13px; color: var(--bz-mute); }
.bzd-score-cta { margin: 4px 0 0; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; }
.bzd-score-cta .bz-btn { white-space: normal; }
.bzd-score-more { font-weight: 600; }
.bzd-final { align-items: flex-start; }
.bzd-final .bzd-h2 { margin: 0; }
.bzd-final-st, .bzd-final-skip { margin: 0; }
.bzd-final-skip { color: var(--bz-warn-ink); background: var(--bz-warn-bg); padding: 8px 12px; border-radius: var(--bz-radius-sm); font-weight: 600; }
.bzd-final .bzd-q-nav { width: 100%; }
.bzd-err { margin: 0; padding: 10px 14px; border-radius: var(--bz-radius-sm); background: var(--bz-bad-bg); color: var(--bz-bad-ink); font-weight: 700; }
/* без JS видны все задания сразу; с JS — по одному */
.bzd-test:not(.is-js) .bzd-final { border-style: dashed; }
@keyframes bzdIn { from { opacity: 0; transform: translateX(18px); } to { opacity: 1; transform: none; } }

/* ---------- шаг 3: контакты ---------- */
.bzd-cols { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: var(--bz-gap, 20px); align-items: start; }
.bzd-contact { display: flex; flex-direction: column; gap: 14px; }
.bzd-contact .bzd-h2 { margin: 0; }
.bzd-contact [aria-invalid="true"] { border-color: var(--bz-bad) !important; box-shadow: 0 0 0 3px var(--bz-bad-bg) !important; }
.bzd-contact .bz-check [aria-invalid="true"] { outline: 2px solid var(--bz-bad); outline-offset: 2px; }
.bzd-ph-h { margin: -4px 0 0; font-size: 13px; }
.bzd-teaser-c { display: flex; flex-direction: column; align-items: center; gap: 16px; text-align: center; position: relative; overflow: hidden; }
.bzd-teaser-ring, .bzd-score-ring { position: relative; display: flex; flex-direction: column; align-items: center; gap: 2px; }
.bzd-score-u { font-size: 13px; color: var(--bz-mute); font-weight: 600; }
.bzd-teaser-l { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; text-align: left; align-self: stretch; }
.bzd-teaser-l li { display: flex; gap: 10px; align-items: flex-start; }
.bzd-teaser-l .bz-ic { color: var(--bz-acc-ink); margin-top: 2px; }
.bzd-blur { align-self: stretch; display: flex; flex-direction: column; gap: 8px; filter: blur(3px); opacity: .7; }
.bzd-blur i { display: block; height: 12px; border-radius: 6px; background: var(--bz-soft); }
.bzd-blur i:nth-child(1) { width: 88%; } .bzd-blur i:nth-child(2) { width: 64%; background: var(--bz-bad-bg); } .bzd-blur i:nth-child(3) { width: 76%; background: var(--bz-ok-bg); }

/* ---------- отчёт ---------- */
.bzd-report { display: flex; flex-direction: column; gap: var(--bz-gap, 20px); min-width: 0; }
.bzd-score { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 30px; }
.bzd-score-b { flex: 1 1 320px; min-width: 0; display: flex; flex-direction: column; gap: 10px; }
.bzd-score-b .bzd-h2 { margin: 0; font-size: clamp(21px, 2.6vw, 27px); }
.bzd-level { margin: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; color: var(--bz-text); }
.bzd-note { margin: 0; font-size: 14px; }
.bzd-chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.bzd-chip { display: inline-flex; flex-direction: column; align-items: center; justify-content: center; min-width: 64px; min-height: 58px; padding: 6px 10px; border-radius: var(--bz-radius-sm); border: 1px solid transparent; font-size: 12px; font-weight: 600; text-align: center; line-height: 1.2; }
.bzd-chip b { font-size: 16px; font-family: var(--bz-font-d); }
.bzd-chip.is-ok { background: var(--bz-ok-bg); color: var(--bz-ok-ink); }
.bzd-chip.is-part { background: var(--bz-warn-bg); color: var(--bz-warn-ink); }
.bzd-chip.is-bad { background: var(--bz-bad-bg); color: var(--bz-bad-ink); }
.bzd-legend { margin: 12px 0 0; font-size: 13px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; }
.bzd-lg { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }
.bzd-lg.is-ok { background: var(--bz-ok); } .bzd-lg.is-part { background: var(--bz-warn); } .bzd-lg.is-bad { background: var(--bz-bad); }
.bzd-num { display: inline-flex; align-items: center; min-height: 24px; padding: 0 8px; border-radius: var(--bz-radius-sm); background: var(--bz-soft); color: var(--bz-ink); font-weight: 800; font-size: 13px; margin-right: 4px; }
.bzd-weak-l { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; counter-reset: w; }
.bzd-weak-l > li { padding: 0 0 14px 14px; border-left: 3px solid var(--bz-bad); border-bottom: 1px solid var(--bz-line); }
.bzd-weak-l > li:last-child { border-bottom: 0; padding-bottom: 0; }
.bzd-weak-t { font-weight: 800; color: var(--bz-ink); font-size: 16px; }
.bzd-tasks { margin: 6px 0 0; padding: 0; list-style: none; font-size: 14px; color: var(--bz-mute); display: flex; flex-direction: column; gap: 2px; }
.bzd-tasks a { font-weight: 600; }
.bzd-links { margin: 8px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.bzd-link { display: inline-flex; align-items: center; gap: 6px; min-height: 32px; padding: 4px 10px; border-radius: var(--bz-pill); background: var(--bz-acc-soft); color: var(--bz-acc-ink) !important; text-decoration: none; font-size: 13px; font-weight: 600; max-width: 100%; }
.bzd-link:hover { text-decoration: underline; }
.bzd-strong-l { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.bzd-strong-l li { display: flex; align-items: center; gap: 8px; color: var(--bz-ink); font-weight: 600; }
.bzd-strong-l .bz-ic { color: var(--bz-ok); }

/* главный призыв */
.bzd-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 20px 30px; padding: clamp(20px, 3.4vw, 34px); border-radius: var(--bz-radius); background: var(--bz-acc); color: var(--bz-on-acc); position: relative; overflow: hidden; }
.bzd-cta::after { content: ""; position: absolute; right: -60px; top: -60px; width: 220px; height: 220px; border-radius: 50%; background: var(--bz-on-acc); opacity: .08; pointer-events: none; }
.bz-skin-tetrad .bzd-cta { background: var(--bz-board, var(--bz-acc)); color: var(--bz-board-ink, var(--bz-on-acc)); }
.bzd-cta-b { flex: 1 1 360px; min-width: 0; display: flex; flex-direction: column; gap: 10px; align-items: flex-start; position: relative; z-index: 1; }
.bzd-cta-t { margin: 0; font-family: var(--bz-font-d); font-size: clamp(22px, 3vw, 30px); line-height: 1.15; color: inherit; }
.bz-skin-tetrad .bzd-cta-t { font-family: var(--bz-chalk, var(--bz-font-d)); font-size: clamp(26px, 3.6vw, 36px); }
.bzd-cta p { margin: 0; color: inherit; opacity: .92; max-width: 620px; }
.bzd-cta-btn, body.bz .bzd-cta-btn { background: var(--bz-on-acc); color: var(--bz-acc-ink) !important; margin-top: 6px; white-space: normal; text-align: center; box-shadow: 0 6px 18px rgba(0,0,0,.18); }
.bz-skin-tetrad .bzd-cta-btn, body.bz-skin-tetrad .bzd-cta-btn { background: var(--bz-board-acc, var(--bz-on-acc)); color: #24433A !important; }
.bzd-cta-tutor { flex: 0 1 300px; min-width: 0; position: relative; z-index: 1; }
.bzd-cta-tutor .bz-tutor { background: var(--bz-panel); color: var(--bz-text); border-radius: var(--bz-radius-sm); padding: 14px; }
.bzd-save .bzd-h2 { margin-bottom: 6px; }
.bzd-save > p { margin: 0 0 12px; }
.bzd-save-row { display: flex; flex-wrap: wrap; gap: 8px; }
.bzd-save-in, body.bz .bzd-save-in { flex: 1 1 260px; min-width: 0; min-height: 44px; padding: 0 12px; border-radius: var(--bz-radius-sm); border: 1px solid var(--bz-line); background: var(--bz-bg); color: var(--bz-ink); font-size: 14px; }
.bzd-save-st { margin: 8px 0 0; min-height: 1.4em; color: var(--bz-ok-ink); font-weight: 700; font-size: 14px; }
.bzd-save .bzd-again { margin: 4px 0 0; }
[data-bzd-copy].is-done { background: var(--bz-ok); }

/* ---------- блок для главной ---------- */
.bzd-promo { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 32px; padding: clamp(20px, 3vw, 30px); border-radius: var(--bz-radius); background: var(--bz-panel); border: 2px solid var(--bz-acc); box-shadow: var(--bz-shadow); position: relative; overflow: hidden; }
.bzd-promo-b { flex: 1 1 340px; min-width: 0; display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.bzd-promo-e { margin: 0; display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: var(--bz-pill); background: var(--bz-acc-soft); color: var(--bz-acc-ink); font-size: 13px; font-weight: 700; }
.bzd-promo-t { margin: 0; font-family: var(--bz-hand, var(--bz-font-d)); font-size: clamp(24px, 3.2vw, 34px); line-height: 1.12; color: var(--bz-ink); }
.bz-skin-tetrad .bzd-promo-t { font-size: clamp(30px, 4vw, 42px); }
.bzd-promo-x { margin: 0; color: var(--bz-text); max-width: 600px; }
.bzd-promo .bz-btn { white-space: normal; }
.bzd-promo-l { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; flex: 0 1 280px; }
.bzd-promo-l li { display: flex; gap: 10px; align-items: center; font-weight: 600; color: var(--bz-ink); }
.bzd-promo-l .bz-ic { color: var(--bz-ok); flex: none; }
.bzd-promo.is-compact { padding: 18px 20px; }

/* ---------- телефон ---------- */
@media (max-width: 760px) {
  .bzd-cols { grid-template-columns: minmax(0, 1fr); }
  .bzd-contact-cols .bzd-teaser { order: -1; }
  .bzd-teaser-c { flex-direction: row; flex-wrap: wrap; text-align: left; }
  .bzd-teaser-c .bz-ring { width: 96px; height: 96px; }
  .bzd-teaser-l { flex: 1 1 180px; }
  .bzd-blur { display: none; }
}
@media (max-width: 560px) {
  .bzd-steps-t { font-size: 11.5px; }
  .bzd-steps li:not(.is-cur) .bzd-steps-t { color: var(--bz-mute); }
  .bzd-bar { top: 4px; padding: 10px 12px; }
  .bzd-dots { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 2px; scrollbar-width: none; }
  .bzd-dots::-webkit-scrollbar { display: none; }
  .bzd-dot, body.bz .bzd-dot { flex: none; width: 32px; height: 32px; }
  .bzd-q-nav .bz-btn { padding: 0 12px; }
  .bzd-q-nav [data-bzd-next], .bzd-final [data-bzd-submit] { flex: 1 1 auto; }
  .bzd-q-sp { display: none; }
  .bzd-q-nav [data-bzd-prev] { order: 3; flex: 1 1 100%; }
  .bzd-final .bzd-q-nav [data-bzd-prev] { order: 2; }
  .bzd-ans-in, body.bz .bzd-ans-in { width: 100%; }
  .bzd-score { justify-content: center; }
  .bzd-chip { min-width: 56px; }
  .bzd-exam { min-height: 88px; }
  .bzd-grades { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
  .bzd-grade { min-height: 72px; }
  .bzd-grade b { font-size: 26px; }
  .bzd-save-row .bz-btn { flex: 1 1 auto; }
  .bz-grid2.bz-grid2 { grid-template-columns: minmax(0, 1fr); }
  .bzd-cta-tutor { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .bzd-q.is-enter { animation: none; }
  .bzd-exam, .bzd-grade, .bzd-steps-bar i, .bzd-prog i { transition: none; }
}

@media print {
  .bzd-steps, .bzd-save, .bzd-cta-btn, .bzd-again { display: none !important; }
  .bzd-cta { background: none !important; color: inherit !important; border: 1px solid #999; }
  .bzd-cols { grid-template-columns: 1fr 1fr; }
}