/* Академия v3: единый слой игрового опыта поверх стабильной темы v2. */
:root {
  --v3-cyan: #38d9ff;
  --v3-violet: #8b5cf6;
  --v3-red: #ff405c;
  --v3-panel: rgba(17, 21, 35, 0.88);
  --v3-panel-strong: rgba(22, 27, 45, 0.96);
  --v3-border: rgba(255, 255, 255, 0.12);
}

body {
  font-size: 16px;
  background:
    radial-gradient(circle at 8% 4%, rgba(255, 64, 92, 0.16), transparent 28rem),
    radial-gradient(circle at 94% 18%, rgba(139, 92, 246, 0.16), transparent 32rem),
    radial-gradient(circle at 50% 70%, rgba(56, 217, 255, 0.055), transparent 40rem),
    #080a12;
}

body.modal-open { overflow: hidden; }

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
  content: "";
}

.brand-copy small,
.sound-toggle-copy small,
.header-progress,
.legal-note,
.section-kicker,
.section-caption,
.lesson-eyebrow,
.lesson-step,
.field-hint,
.attempt-note,
.question-kicker {
  font-size: max(0.75rem, 12px);
}

.topbar {
  min-height: 72px;
  gap: 16px;
  background: rgba(8, 10, 18, 0.78);
  box-shadow: 0 12px 45px rgba(0, 0, 0, 0.18);
}

.topbar-stats { gap: 12px; }
.brand-copy strong { font-size: 1rem; }
.brand-copy small { letter-spacing: 0.08em; }
.header-progress { font-size: 0.78rem; }
.sound-toggle { min-height: 44px; }
.sound-toggle-copy small { font-size: 0.7rem; }
.sound-toggle-copy strong { font-size: 0.78rem; }

.glossary-toggle {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 8px;
  padding: 0 13px;
  border: 1px solid rgba(56, 217, 255, 0.23);
  border-radius: 13px;
  color: #dffaff;
  background: rgba(56, 217, 255, 0.07);
  cursor: pointer;
}

.glossary-toggle > span {
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  border-radius: 50%;
  color: var(--v3-cyan);
  background: rgba(56, 217, 255, 0.13);
  font-weight: 900;
}

.glossary-toggle strong { font-size: 0.8rem; }
body[data-view="view-exam"] .glossary-toggle { opacity: 0.45; }

#view-home.is-active {
  display: flex;
  flex-direction: column;
}

.hero-grid,
.training-hub,
.dashboard-section,
.achievements-section,
.missions-section,
.exam-banner {
  width: min(1320px, calc(100% - 48px));
}

.hero-grid {
  min-height: min(690px, calc(100svh - 72px));
  padding-block: clamp(54px, 8vw, 104px);
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 0.88fr);
  gap: clamp(36px, 7vw, 90px);
}

.hero-copy h1 {
  max-width: 760px;
  font-size: clamp(3.15rem, 6.1vw, 5.9rem);
  line-height: 0.94;
  letter-spacing: -0.052em;
  text-wrap: balance;
}

.hero-copy h1 span,
.hero-copy h1 em { display: block; }

.hero-copy h1 em {
  color: transparent;
  background: linear-gradient(100deg, #ff4964 5%, #ff8b6e 48%, #9f7aea 96%);
  background-clip: text;
  -webkit-background-clip: text;
}

.hero-lead {
  max-width: 670px;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.7;
}

.hero-actions .button { min-height: 54px; }

.operation-console {
  min-height: 440px;
  isolation: isolate;
}

.operation-console::before {
  inset: 8% 4%;
  border-radius: 45%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.2), rgba(255, 64, 92, 0.08) 38%, transparent 70%);
  filter: blur(12px);
}

.console-frame {
  position: relative;
  z-index: 3;
  width: min(100%, 510px);
  overflow: hidden;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 30px;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.08), transparent 32%),
    rgba(13, 17, 29, 0.92);
  box-shadow: 0 35px 100px rgba(0, 0, 0, 0.42), 0 0 60px rgba(139, 92, 246, 0.09);
  backdrop-filter: blur(22px);
  transform: perspective(1100px) rotateY(-4deg) rotateX(2deg);
}

.console-frame::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(105deg, transparent 30%, rgba(255, 255, 255, 0.06) 48%, transparent 65%);
  transform: translateX(-100%);
  animation: console-glint 7s ease-in-out infinite;
  content: "";
}

.console-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--v3-border);
  color: #aeb6c9;
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.console-head span { display: inline-flex; align-items: center; gap: 8px; }
.console-head i { width: 7px; height: 7px; border-radius: 50%; background: #4ae39a; box-shadow: 0 0 15px #4ae39a; }
.console-head strong { color: #ff7286; font-size: 0.75rem; }

.mentor-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 15px;
  align-items: center;
  margin: 20px 0;
}

.mentor-avatar {
  position: relative;
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  border: 1px solid rgba(56, 217, 255, 0.25);
  border-radius: 22px;
  background: radial-gradient(circle at 50% 42%, rgba(56, 217, 255, 0.25), rgba(139, 92, 246, 0.12) 45%, rgba(255, 255, 255, 0.03) 46%);
}

.mentor-avatar span { color: #dffaff; font-size: 1.65rem; text-shadow: 0 0 22px var(--v3-cyan); }
.mentor-avatar i { position: absolute; right: 6px; bottom: 6px; width: 12px; height: 12px; border: 2px solid #101522; border-radius: 50%; background: #4ae39a; }

.mentor-message small { color: var(--v3-cyan); font-size: 0.72rem; font-weight: 900; letter-spacing: 0.12em; }
.mentor-message p { margin: 6px 0 0; color: #d8dce7; font-size: 0.95rem; line-height: 1.55; }

.hero-mission-card {
  position: relative;
  display: grid;
  width: 100%;
  min-height: 112px;
  grid-template-columns: 62px minmax(0, 1fr) 34px;
  gap: 14px;
  align-items: center;
  padding: 16px;
  border: 1px solid rgba(255, 64, 92, 0.28);
  border-radius: 21px;
  color: #fff;
  background: linear-gradient(120deg, rgba(255, 64, 92, 0.14), rgba(139, 92, 246, 0.1));
  text-align: left;
  cursor: pointer;
  transition: 0.25s ease;
}

.hero-mission-card:hover { border-color: rgba(255, 99, 121, 0.58); transform: translateY(-3px); box-shadow: 0 18px 45px rgba(0, 0, 0, 0.24); }
.hero-mission-icon { display: grid; width: 62px; height: 62px; place-items: center; border-radius: 18px; background: rgba(255, 255, 255, 0.08); font-size: 1.85rem; }
.hero-mission-card > span:nth-child(2) { display: grid; min-width: 0; gap: 3px; }
.hero-mission-card small { color: #ff8c9d; font-size: 0.7rem; font-weight: 900; letter-spacing: 0.1em; }
.hero-mission-card strong { overflow: hidden; font-size: 1.2rem; text-overflow: ellipsis; white-space: nowrap; }
.hero-mission-card em { color: #aeb6c9; font-size: 0.78rem; font-style: normal; }
.hero-mission-card b { display: grid; width: 34px; height: 34px; place-items: center; border-radius: 50%; background: #fff; color: #111521; }
.console-scan { position: absolute; inset: 0; pointer-events: none; background: repeating-linear-gradient(to bottom, transparent 0 5px, rgba(255,255,255,.012) 6px); }

.training-hub {
  margin: 10px auto 40px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--v3-border);
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(21, 26, 43, 0.95), rgba(13, 16, 28, 0.92));
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.22);
}

.hub-heading { display: flex; justify-content: space-between; gap: 20px; align-items: flex-end; margin-bottom: 20px; }
.hub-heading h2 { margin: 4px 0 0; font-size: clamp(1.55rem, 3vw, 2.35rem); }
.mastery-pill { display: grid; min-width: 112px; justify-items: end; }
.mastery-pill span { color: var(--muted); font-size: 0.78rem; }
.mastery-pill strong { color: var(--v3-cyan); font-size: 2rem; }
.training-hub-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.training-card { display: grid; min-width: 0; grid-template-columns: 54px minmax(0, 1fr) auto; gap: 15px; align-items: center; padding: 20px; border: 1px solid var(--v3-border); border-radius: 22px; background: rgba(255, 255, 255, 0.035); }
.training-card.has-mistakes { border-color: rgba(240, 184, 74, 0.28); background: rgba(240, 184, 74, 0.045); }
.training-card-icon { display: grid; width: 54px; height: 54px; place-items: center; border-radius: 17px; color: var(--v3-cyan); background: rgba(56, 217, 255, 0.1); font-size: 1.4rem; }
.training-card-icon.warning { color: var(--amber); background: rgba(240, 184, 74, 0.1); }
.training-card small { color: var(--v3-cyan); font-size: 0.7rem; font-weight: 900; letter-spacing: 0.1em; }
.training-card h3 { margin: 3px 0 4px; font-size: 1.1rem; }
.training-card p { margin: 0; color: var(--muted); font-size: 0.86rem; line-height: 1.5; }
.training-card .button { min-height: 46px; white-space: nowrap; }

.dashboard-section { order: 4; }
.achievements-section { order: 5; }
.missions-section { order: 3; }
.exam-banner { order: 6; }
.training-hub { order: 2; }
.hero-grid { order: 1; }

.missions-section {
  position: relative;
  margin-top: 12px;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--v3-border);
  border-radius: 32px;
  background: rgba(12, 15, 26, 0.68);
  overflow: hidden;
}

.missions-section::before {
  position: absolute;
  inset: 115px 8% auto;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255, 64, 92, 0.35), rgba(56, 217, 255, 0.22), transparent);
  content: "";
}

.missions-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.mission-card,
.mission-card:hover {
  min-height: 238px;
  padding: 21px;
  border-radius: 24px;
  transform: none;
}

.mission-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.06), rgba(13, 16, 27, 0.95));
}

.mission-card:hover { border-color: rgba(139, 92, 246, 0.5); transform: translateY(-5px); }
.mission-card.is-complete { border-color: rgba(70, 212, 135, 0.3); }
.mission-card.needs-review { border-color: rgba(240, 184, 74, 0.35); }
.mission-card h3 { font-size: 1.28rem; }
.mission-card > p { min-height: 45px; font-size: 0.9rem; line-height: 1.55; }
.mission-card-foot { flex-wrap: wrap; gap: 8px 12px; font-size: 0.76rem; }
.mission-mastery { color: var(--v3-cyan); }
.mission-card.needs-review .mission-status { color: var(--amber); background: rgba(240, 184, 74, 0.1); }

.achievements-section { width: min(1320px, calc(100% - 48px)); }
.achievement-card { min-height: 92px; }

.lesson-shell { grid-template-columns: minmax(250px, 320px) minmax(0, 1fr); }
.lesson-sidebar { max-height: calc(100svh - 96px); overflow: auto; scrollbar-width: thin; }
.lesson-step { min-height: 38px; }
.lesson-content { max-width: 980px; }
.lesson-panel { min-height: 530px; }
.lesson-text { font-size: 1.04rem; line-height: 1.72; }
.fact-card { min-height: 70px; }

.micro-check-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  padding: 13px 15px;
  border: 1px solid rgba(56, 217, 255, 0.18);
  border-radius: 16px;
  background: rgba(56, 217, 255, 0.055);
}

.micro-check-head > span { display: grid; width: 39px; height: 39px; place-items: center; border-radius: 12px; color: var(--v3-cyan); background: rgba(56, 217, 255, 0.12); }
.micro-check-head strong,
.micro-check-head small { display: block; }
.micro-check-head strong { font-size: 0.92rem; }
.micro-check-head small { margin-top: 3px; color: var(--muted); font-size: 0.78rem; }
.micro-check-options { margin-top: 22px; }

.checkpoint-option { min-height: 58px; font-size: 0.96rem; line-height: 1.45; }
.checkpoint-feedback { display: none; align-items: flex-start; gap: 8px; min-height: 58px; padding: 14px 16px; font-size: 0.92rem; line-height: 1.55; }
.checkpoint-feedback.is-visible { display: grid; }
.checkpoint-feedback strong,
.checkpoint-feedback span { display: block; }
.checkpoint-feedback strong { margin-bottom: 2px; }
.checkpoint-feedback.is-error { border-color: rgba(255, 64, 92, 0.28); background: rgba(255, 64, 92, 0.08); }
.challenge-complete-state { display: grid; min-height: 190px; place-items: center; align-content: center; gap: 8px; text-align: center; }
.challenge-complete-state > span { display: grid; width: 64px; height: 64px; place-items: center; border-radius: 20px; color: var(--green); background: rgba(70, 212, 135, 0.1); font-size: 1.8rem; }
.challenge-complete-state small { color: var(--muted); }

.practice-shell {
  width: min(940px, calc(100% - 40px));
  min-height: calc(100svh - 150px);
  margin: 0 auto;
  padding: 42px 0 70px;
}

.practice-header,
.practice-controls { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.practice-progress-copy { display: grid; justify-items: end; gap: 3px; }
.practice-progress-copy span { color: var(--v3-cyan); font-size: 0.72rem; font-weight: 900; letter-spacing: 0.11em; }
.practice-progress-copy strong { font-size: 0.92rem; }
.practice-progress { height: 6px; margin: 18px 0 24px; overflow: hidden; border-radius: 999px; background: rgba(255, 255, 255, 0.08); }
.practice-progress span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--v3-red), var(--v3-violet), var(--v3-cyan)); transition: width 0.35s ease; }
.practice-panel { min-height: 520px; padding: clamp(24px, 5vw, 54px); border: 1px solid var(--v3-border); border-radius: 30px; background: var(--v3-panel); box-shadow: var(--shadow); }
.practice-topic { display: inline-flex; padding: 8px 12px; border-radius: 999px; color: #c9f7ff; background: rgba(56, 217, 255, 0.08); font-size: 0.78rem; font-weight: 850; }
.practice-panel h1 { margin: 20px 0 28px; font-size: clamp(1.75rem, 4vw, 3rem); line-height: 1.13; }
.practice-controls { margin-top: 18px; }
.practice-controls p { margin: 0; color: var(--muted-light); font-weight: 700; }
.practice-result-card { padding: 24px; border: 1px solid rgba(56, 217, 255, 0.18); border-radius: 20px; background: rgba(56, 217, 255, 0.055); }
.practice-result-card strong { font-size: 1.2rem; }
.practice-result-card p { color: var(--muted-light); line-height: 1.65; }
.practice-result-card span { color: var(--v3-cyan); font-weight: 800; }

.glossary-backdrop { z-index: 120; }
.glossary-dialog { width: min(760px, calc(100% - 32px)); max-height: min(760px, calc(100svh - 40px)); overflow: auto; text-align: left; }
.glossary-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.glossary-head .section-kicker { margin-top: 0; }
.glossary-head h2 { margin: 4px 0 0; font-size: clamp(1.7rem, 4vw, 2.5rem); }
.glossary-intro { color: var(--muted); line-height: 1.6; }
.glossary-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.glossary-grid article { padding: 15px; border: 1px solid var(--v3-border); border-radius: 16px; background: rgba(255, 255, 255, 0.035); }
.glossary-grid strong { color: var(--v3-cyan); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 1rem; }
.glossary-grid p { margin: 6px 0 0; color: var(--muted-light); font-size: 0.88rem; line-height: 1.5; }

@keyframes console-glint {
  0%, 72%, 100% { transform: translateX(-120%); }
  86% { transform: translateX(120%); }
}

@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(370px, 0.8fr); gap: 34px; }
  .training-card { grid-template-columns: 50px minmax(0, 1fr); }
  .training-card .button { grid-column: 1 / -1; width: 100%; }
  .missions-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lesson-shell { grid-template-columns: 250px minmax(0, 1fr); }
}

@media (max-width: 850px) {
  .topbar { min-height: 64px; padding-inline: 16px; }
  .header-progress { display: none; }
  .hero-grid,
  .training-hub,
  .dashboard-section,
  .achievements-section,
  .missions-section,
  .exam-banner { width: min(100% - 28px, 1320px); }
  .hero-grid { min-height: auto; grid-template-columns: 1fr; padding-block: 48px 24px; }
  .hero-copy { text-align: center; }
  .hero-lead { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .legal-note { justify-content: center; }
  .operation-console { min-height: 390px; }
  .console-frame { transform: none; }
  .training-hub-grid { grid-template-columns: 1fr; }
  .lesson-shell { display: block; }
  .lesson-sidebar { position: static; max-height: none; overflow: visible; }
  .step-list { display: flex; overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x proximity; }
  .lesson-step { min-width: 150px; scroll-snap-align: start; }
  .lesson-content { width: min(100% - 28px, 980px); margin-inline: auto; }
  .lesson-panel { min-height: 460px; }
}

@media (max-width: 620px) {
  .topbar { gap: 8px; }
  .brand-copy small,
  .sound-toggle-copy,
  .glossary-toggle strong,
  .xp-pill span:last-child { display: none; }
  .topbar-stats { gap: 7px; }
  .xp-pill { min-height: 42px; padding-inline: 10px; }
  .sound-toggle { width: 42px; min-height: 42px; justify-content: center; padding: 5px; }
  .glossary-toggle { width: 42px; justify-content: center; padding: 0; }
  .brand-mark { width: 40px; height: 40px; }
  .brand-copy strong { font-size: 0.9rem; }
  .hero-grid { padding-top: 36px; }
  .hero-copy h1 { font-size: clamp(2.75rem, 15vw, 4.6rem); }
  .hero-lead { font-size: 1rem; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .hero-actions .button { width: 100%; }
  .operation-console { min-height: 350px; }
  .console-frame { padding: 15px; border-radius: 24px; }
  .console-head { font-size: 0.67rem; }
  .mentor-row { grid-template-columns: 56px minmax(0, 1fr); gap: 11px; margin: 15px 0; }
  .mentor-avatar { width: 56px; height: 56px; border-radius: 17px; }
  .mentor-message p { font-size: 0.87rem; }
  .hero-mission-card { min-height: 98px; grid-template-columns: 48px minmax(0, 1fr) 30px; gap: 10px; padding: 12px; }
  .hero-mission-icon { width: 48px; height: 48px; border-radius: 14px; font-size: 1.45rem; }
  .hero-mission-card strong { font-size: 1rem; }
  .hero-mission-card b { width: 30px; height: 30px; }
  .training-hub { padding: 18px; border-radius: 24px; }
  .hub-heading { align-items: flex-start; }
  .hub-heading h2 { font-size: 1.55rem; }
  .mastery-pill { min-width: 80px; }
  .mastery-pill strong { font-size: 1.6rem; }
  .training-card { grid-template-columns: 45px minmax(0, 1fr); padding: 16px; }
  .training-card-icon { width: 45px; height: 45px; border-radius: 14px; }
  .missions-section { padding: 21px 16px; border-radius: 25px; }
  .missions-grid { grid-template-columns: 1fr; gap: 12px; }
  .mission-card,
  .mission-card:hover { min-height: 210px; padding: 18px; transform: none; }
  .mission-card > p { min-height: 0; }
  .lesson-sidebar { width: min(100% - 24px, 980px); margin-inline: auto; }
  .lesson-content { width: min(100% - 20px, 980px); padding-bottom: 86px; }
  .lesson-panel { min-height: auto; padding: 22px 17px; border-radius: 22px; }
  .lesson-text { font-size: 1rem; }
  .lesson-controls { position: sticky; bottom: 0; z-index: 15; gap: 8px; padding: 10px 0 calc(10px + env(safe-area-inset-bottom)); background: linear-gradient(to top, #080a12 72%, transparent); }
  .lesson-controls .button { min-height: 50px; }
  .lesson-controls .button:first-child { flex: 0 0 94px; }
  .lesson-controls .button:last-child { flex: 1; }
  .checkpoint-question { font-size: clamp(1.45rem, 7vw, 2rem); }
  .checkpoint-option { min-height: 62px; padding: 13px; }
  .practice-shell { width: min(100% - 20px, 940px); padding-top: 24px; }
  .practice-header { align-items: flex-start; }
  .practice-panel { min-height: 480px; padding: 23px 16px; border-radius: 23px; }
  .practice-panel h1 { font-size: 1.7rem; }
  .practice-controls { position: sticky; bottom: 0; z-index: 15; align-items: stretch; flex-direction: column; padding: 12px 0 calc(12px + env(safe-area-inset-bottom)); background: linear-gradient(to top, #080a12 78%, transparent); }
  .practice-controls .button { width: 100%; min-height: 52px; }
  .glossary-grid { grid-template-columns: 1fr; }
  .glossary-dialog { padding: 22px 17px; }
}

@media (max-width: 390px) {
  .topbar { padding-inline: 10px; }
  .brand { gap: 8px; }
  .brand-copy strong { font-size: 0.82rem; }
  .xp-pill { display: none; }
  .hero-grid,
  .training-hub,
  .dashboard-section,
  .achievements-section,
  .missions-section,
  .exam-banner { width: calc(100% - 18px); }
  .hero-copy h1 { font-size: 2.65rem; }
  .console-head strong { display: none; }
  .hero-mission-card em { font-size: 0.7rem; }
  .hub-heading { display: grid; }
  .mastery-pill { justify-items: start; }
  .training-card { display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .console-frame::before { animation: none; }
}

/* v3.1 — мобильная компоновка: меньше визуального шума, больше полезного места. */
@media (max-width: 850px) {
  .topbar {
    min-height: calc(64px + env(safe-area-inset-top));
    padding-top: env(safe-area-inset-top);
  }

  .hero-grid {
    gap: 20px;
    padding-block: 44px 18px;
  }

  .hero-copy h1 {
    max-width: 680px;
    margin-inline: auto;
    font-size: clamp(3rem, 10vw, 4.8rem);
    line-height: 0.98;
    letter-spacing: -0.045em;
  }

  .operation-console {
    min-height: 360px;
  }

  .lesson-shell {
    display: block;
    min-height: auto;
    padding-top: 12px;
  }

  .lesson-sidebar {
    position: relative;
    top: auto;
    display: grid;
    width: min(100% - 28px, 980px);
    min-height: auto;
    max-height: none;
    margin: 0 auto;
    overflow: visible;
    border: 1px solid var(--v3-border);
    border-radius: 20px;
    padding: 13px 15px;
    background: rgba(16, 20, 33, 0.9);
    box-shadow: 0 14px 38px rgba(0, 0, 0, 0.2);
  }

  .lesson-sidebar .back-link {
    min-height: 38px;
    width: max-content;
    max-width: 100%;
  }

  .lesson-identity {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    align-items: center;
    column-gap: 11px;
    margin-top: 9px;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    padding-top: 10px;
  }

  .lesson-icon {
    grid-row: 1 / 3;
    width: 42px;
    height: 42px;
    border-radius: 13px;
    font-size: 1.2rem;
  }

  .lesson-identity p,
  .lesson-identity h2 { grid-column: 2; }

  .lesson-identity p {
    margin: 0 0 2px;
    font-size: 0.64rem;
  }

  .lesson-identity h2 {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.2;
    letter-spacing: -0.025em;
    overflow-wrap: anywhere;
  }

  .lesson-number,
  .lesson-sidebar .step-list,
  .lesson-xp { display: none !important; }

  .lesson-content {
    width: min(100% - 28px, 980px);
    padding: 18px 0 128px;
  }

  .lesson-topline {
    grid-template-columns: auto minmax(48px, 1fr) auto;
    gap: 12px;
    font-size: 0.76rem;
  }

  .lesson-panel {
    min-height: auto;
    margin-top: 16px;
    border-radius: 24px;
    padding: clamp(24px, 6vw, 38px);
  }

  .lesson-panel h1,
  .lesson-panel #lesson-title,
  .checkpoint-question {
    max-width: 100%;
    font-size: clamp(2rem, 7vw, 2.9rem) !important;
    line-height: 1.08;
    letter-spacing: -0.038em;
    overflow-wrap: anywhere;
    text-wrap: balance;
  }

  .lesson-panel .lesson-text {
    max-width: 100%;
    font-size: 1rem;
    line-height: 1.68;
  }

  .fact-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 26px;
  }

  .fact-card {
    min-height: auto;
    padding: 14px;
    font-size: 0.92rem;
    line-height: 1.5;
  }

  .lesson-controls {
    position: sticky;
    bottom: 0;
    z-index: 15;
    display: grid;
    grid-template-columns: minmax(108px, 0.42fr) minmax(0, 1fr);
    gap: 9px;
    margin-top: 16px;
    padding: 12px 0 calc(12px + env(safe-area-inset-bottom));
    background: linear-gradient(to top, #080a12 76%, rgba(8, 10, 18, 0.94) 88%, transparent);
  }

  .lesson-controls .button {
    width: 100%;
    min-width: 0;
    min-height: 52px;
    padding-inline: 14px;
  }

  .exam-intro-shell,
  .exam-shell,
  .result-shell {
    width: min(100% - 28px, 720px);
  }

  .exam-intro-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    min-height: auto;
    padding-top: 34px;
  }

  .exam-intro-copy {
    padding-left: 0;
  }

  .exam-intro-copy h1 {
    font-size: clamp(3rem, 10vw, 4.7rem);
    line-height: 0.98;
  }

  .candidate-card { width: 100%; }

  .exam-shell { padding-top: 26px; }
  .question-card { min-height: auto; }

  .result-main { grid-template-columns: auto minmax(0, 1fr); }
  .topic-results { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .topbar {
    min-height: calc(60px + env(safe-area-inset-top));
    padding-inline: 12px;
  }

  .brand { min-width: 0; }
  .brand-copy { min-width: 0; }
  .brand-copy strong {
    display: block;
    max-width: 94px;
    font-size: 0.86rem;
    line-height: 1.08;
  }

  .topbar-stats { margin-left: auto; }

  .hero-grid,
  .training-hub,
  .dashboard-section,
  .achievements-section,
  .missions-section,
  .exam-banner {
    width: calc(100% - 20px);
  }

  .hero-grid {
    padding-top: clamp(30px, 9vw, 42px);
    border-bottom: 0;
  }

  .eyebrow {
    margin-bottom: 16px;
    font-size: 0.66rem;
    letter-spacing: 0.12em;
  }

  .hero-copy h1 {
    max-width: 370px;
    font-size: clamp(2.5rem, 11.3vw, 3.45rem);
    line-height: 1;
    letter-spacing: -0.04em;
  }

  .hero-copy h1 em { margin-top: 0.08em; }

  .hero-lead {
    max-width: 34rem;
    margin-top: 20px;
    font-size: 0.97rem;
    line-height: 1.6;
  }

  .hero-actions { margin-top: 24px; }
  .legal-note { margin-top: 16px; line-height: 1.45; }

  .operation-console {
    min-height: 318px;
    align-items: start;
  }

  .console-frame {
    width: 100%;
    padding: 14px;
  }

  .training-hub { margin-top: 4px; }
  .hub-heading { gap: 12px; }
  .hub-heading h2 { line-height: 1.12; text-wrap: balance; }
  .training-card p { font-size: 0.82rem; }

  .dashboard-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

  .progress-card { grid-column: 1 / -1; }
  .rank-stat-card { grid-column: 1 / -1; }

  .stat-card {
    min-height: 118px;
    padding: 16px;
  }

  .achievement-grid { grid-template-columns: 1fr !important; }
  .achievement-card { min-height: 72px; padding: 12px; }

  .exam-banner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 21px 18px;
    text-align: left;
  }

  .exam-banner-icon { margin-inline: 0; }
  .exam-banner-status { grid-column: auto; grid-template-columns: 1fr; justify-items: stretch; }
  .exam-banner-status .button { width: 100%; }

  .lesson-shell { padding-top: 9px; }

  .lesson-sidebar {
    width: calc(100% - 20px);
    border-radius: 18px;
    padding: 11px 13px;
  }

  .lesson-sidebar .back-link {
    min-height: 34px;
    font-size: 0.78rem;
  }

  .lesson-identity { margin-top: 6px; padding-top: 8px; }
  .lesson-identity p { display: none; }
  .lesson-identity h2 { grid-column: 2; }

  .lesson-content {
    width: calc(100% - 20px);
    padding: 14px 0 calc(118px + env(safe-area-inset-bottom));
  }

  .lesson-panel {
    margin-top: 14px;
    border-radius: 20px;
    padding: 20px 16px;
  }

  .lesson-panel .lesson-eyebrow { font-size: 0.68rem; }

  .lesson-panel h1,
  .lesson-panel #lesson-title,
  .checkpoint-question {
    margin-top: 13px;
    margin-bottom: 17px;
    font-size: clamp(1.75rem, 7.6vw, 2.25rem) !important;
    line-height: 1.09;
  }

  .lesson-panel .lesson-text {
    font-size: 0.96rem;
    line-height: 1.62;
  }

  .fact-grid { margin-top: 20px; }
  .fact-card { padding: 12px; font-size: 0.88rem; }

  .micro-check-head {
    gap: 10px;
    margin-bottom: 16px;
    padding: 11px;
  }

  .micro-check-head > span { width: 35px; height: 35px; }
  .checkpoint-options { gap: 9px; }
  .checkpoint-option { min-height: 56px; padding: 11px; font-size: 0.9rem; }

  .lesson-controls {
    grid-template-columns: minmax(102px, 0.42fr) minmax(0, 1fr);
    gap: 8px;
    margin-top: 10px;
    padding-top: 10px;
  }

  .lesson-controls .button,
  .lesson-controls .button:first-child,
  .lesson-controls .button:last-child {
    min-height: 48px;
    padding-inline: 10px;
    font-size: 0.88rem;
  }

  .practice-shell {
    width: calc(100% - 20px);
    padding: 18px 0 calc(110px + env(safe-area-inset-bottom));
  }

  .practice-header { gap: 10px; }
  .practice-header .back-link { max-width: 58%; line-height: 1.3; text-align: left; }
  .practice-progress-copy { min-width: 92px; }
  .practice-panel { min-height: auto; padding: 20px 15px; }
  .practice-panel h1 { font-size: clamp(1.55rem, 7vw, 2rem); line-height: 1.12; }
  .practice-controls { margin-top: 10px; }

  .glossary-backdrop {
    align-items: flex-end;
    padding: 0;
  }

  .glossary-dialog {
    width: 100%;
    max-width: none;
    max-height: calc(100dvh - env(safe-area-inset-top) - 10px);
    margin: 0;
    overflow: auto;
    overscroll-behavior: contain;
    border-radius: 26px 26px 0 0;
    padding: 16px 16px calc(18px + env(safe-area-inset-bottom));
    scrollbar-width: thin;
  }

  .glossary-head {
    position: sticky;
    top: -16px;
    z-index: 2;
    align-items: center;
    margin: -2px -2px 0;
    padding: 4px 2px 12px;
    background: linear-gradient(to bottom, rgba(17, 21, 35, 1) 76%, rgba(17, 21, 35, 0));
  }

  .glossary-head .section-kicker { display: none; }
  .glossary-head h2 { margin: 0; font-size: 1.38rem; letter-spacing: -0.03em; }
  .glossary-intro { margin: 3px 0 12px; font-size: 0.86rem; line-height: 1.5; }
  .glossary-grid { gap: 7px; }

  .glossary-grid article {
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr);
    align-items: start;
    gap: 10px;
    border-radius: 14px;
    padding: 11px 12px;
  }

  .glossary-grid strong { padding-top: 1px; font-size: 0.9rem; }
  .glossary-grid p { margin: 0; font-size: 0.82rem; line-height: 1.45; }

  .exam-intro-shell,
  .exam-shell,
  .result-shell { width: calc(100% - 20px); }

  .exam-intro-shell { padding: 20px 0 54px; }
  .exam-intro-grid { gap: 22px; padding-top: 28px; }
  .exam-seal { width: 76px; height: 76px; margin-bottom: 18px; }
  .exam-seal span { font-size: 2.15rem; }

  .exam-intro-copy h1 {
    font-size: clamp(2.35rem, 11vw, 3.15rem) !important;
    line-height: 1;
    letter-spacing: -0.045em;
  }

  .exam-intro-copy > p:last-child {
    margin-top: 18px;
    font-size: 0.94rem;
    line-height: 1.6;
  }

  .candidate-card { border-radius: 22px; padding: 19px 16px; }
  .candidate-card-head { margin-bottom: 22px; }
  .exam-rules { margin: 20px 0; padding: 15px 0; }
  .exam-rules strong { font-size: 1.08rem; }
  .exam-rules span { font-size: 0.68rem; }

  .exam-shell { padding: 20px 0 calc(105px + env(safe-area-inset-bottom)); }
  .exam-header { align-items: flex-start; gap: 10px; }
  .exam-header-right { gap: 7px; }
  .exam-timer { min-width: 68px; min-height: 36px; }
  .topic-chip { display: none; }
  .question-card { margin-top: 16px; border-radius: 22px; padding: 22px 15px; }
  .question-index { right: 13px; font-size: 4.5rem; }

  .question-card h1 {
    margin: 16px 0 22px;
    font-size: clamp(1.55rem, 7vw, 2.05rem) !important;
    line-height: 1.14;
    overflow-wrap: anywhere;
    text-wrap: balance;
  }

  .answers-list { grid-template-columns: 1fr; gap: 9px; }
  .answer-option { min-height: 58px; padding: 11px; }
  .answer-option .answer-text { font-size: 0.9rem; }

  .exam-controls {
    position: sticky;
    bottom: 0;
    z-index: 15;
    margin-top: 10px;
    padding: 11px 0 calc(11px + env(safe-area-inset-bottom));
    background: linear-gradient(to top, #080a12 78%, rgba(8, 10, 18, 0.94) 90%, transparent);
  }

  .exam-controls .button { width: 100%; min-height: 50px; }

  .result-shell { padding: 22px 0 58px; }
  .result-hero { min-height: auto; border-radius: 22px; padding: 18px 15px 22px; }
  .result-topline { gap: 8px; font-size: 0.66rem; letter-spacing: 0.08em; }
  .result-main { grid-template-columns: 1fr; gap: 18px; justify-items: center; margin-top: 24px; text-align: center; }
  .result-ring { width: 138px; height: 138px; }
  .result-verdict h1 { font-size: clamp(2rem, 9vw, 2.7rem); }
  .result-meta { justify-content: center; }

  .result-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    margin: 14px 0 34px;
  }

  .result-actions .button,
  .result-actions .text-button { width: 100%; min-height: 48px; justify-content: center; }

  .verification-card {
    grid-template-columns: 1fr !important;
    gap: 18px;
    justify-items: center;
    border-radius: 22px;
    padding: 20px 16px;
    text-align: center;
  }

  .verification-card img { width: 154px; height: 154px; }
  .verification-copy > p:not(.section-kicker) { margin-inline: auto; }
  .integrity-status { max-width: 100%; text-align: left; }

  .breakdown-section,
  .mistakes-section { margin-top: 34px; }
  .topic-results { grid-template-columns: 1fr !important; }
  .topic-result { grid-template-columns: 40px minmax(0, 1fr) auto; gap: 9px; padding: 12px; }
  .topic-result-icon { width: 40px; height: 40px; }
  .mistake-card { padding: 15px; }

  .dialog:not(.glossary-dialog) {
    width: calc(100% - 20px);
    max-height: calc(100dvh - 20px);
    overflow: auto;
    border-radius: 22px;
    padding: 22px 17px;
  }
}

@media (max-width: 390px) {
  .topbar { padding-inline: 9px; }
  .brand-mark { width: 38px; height: 38px; }
  .brand-copy strong { max-width: 82px; font-size: 0.78rem; }
  .topbar-stats { gap: 5px; }
  .sound-toggle,
  .glossary-toggle { width: 39px; min-height: 39px; }

  .hero-copy h1 {
    max-width: 340px;
    font-size: clamp(2.25rem, 10.9vw, 2.7rem);
  }

  .hero-lead { font-size: 0.92rem; }
  .console-head strong { display: none; }
  .mentor-message p { font-size: 0.82rem; }
  .dashboard-grid { gap: 8px; }
  .stat-card { min-height: 108px; padding: 13px; }

  .lesson-content,
  .lesson-sidebar,
  .practice-shell,
  .exam-intro-shell,
  .exam-shell,
  .result-shell { width: calc(100% - 16px); }

  .lesson-topline { gap: 8px; font-size: 0.7rem; }
  .lesson-panel { padding: 18px 14px; }
  .lesson-panel h1,
  .lesson-panel #lesson-title,
  .checkpoint-question { font-size: clamp(1.62rem, 7.4vw, 1.95rem) !important; }

  .lesson-controls {
    grid-template-columns: minmax(92px, 0.4fr) minmax(0, 1fr);
  }

  .lesson-controls .button,
  .lesson-controls .button:first-child,
  .lesson-controls .button:last-child { font-size: 0.82rem; }

  .glossary-dialog { padding-inline: 13px; }
  .glossary-grid article { grid-template-columns: 46px minmax(0, 1fr); gap: 8px; padding: 10px; }
  .glossary-grid p { font-size: 0.79rem; }

  .exam-intro-copy h1 { font-size: clamp(2.15rem, 10.7vw, 2.6rem) !important; }
  .candidate-card { padding-inline: 14px; }
  .exam-rules strong { font-size: 1rem; }
  .exam-rules span { font-size: 0.63rem; }

  .question-card { padding-inline: 13px; }
  .answer-option { grid-template-columns: 30px minmax(0, 1fr); gap: 9px; padding: 10px; }
  .answer-option .option-letter { width: 30px; height: 30px; }

  .result-topline { flex-direction: column; align-items: flex-start; }
}

/* v3.2 — финальная полировка мобильного ритма, словаря и появления блоков. */
.glossary-dialog {
  background:
    radial-gradient(circle at 88% 4%, rgba(56, 217, 255, 0.09), transparent 17rem),
    linear-gradient(155deg, rgba(24, 29, 47, 0.98), rgba(14, 18, 31, 0.99));
  box-shadow: 0 32px 110px rgba(0, 0, 0, 0.58), inset 0 1px rgba(255, 255, 255, 0.05);
}

.glossary-grid article {
  transition: border-color 0.22s ease, background 0.22s ease, transform 0.22s ease;
}

@media (hover: hover) and (pointer: fine) {
  .glossary-grid article:hover {
    border-color: rgba(56, 217, 255, 0.26);
    background: rgba(56, 217, 255, 0.055);
    transform: translateY(-2px);
  }
}

@media (max-width: 850px) {
  #view-home.is-active {
    gap: clamp(24px, 4.5vw, 36px);
  }

  #view-home.is-active > .hero-grid,
  #view-home.is-active > .training-hub,
  #view-home.is-active > .dashboard-section,
  #view-home.is-active > .achievements-section,
  #view-home.is-active > .missions-section,
  #view-home.is-active > .exam-banner {
    margin-block: 0;
  }

  .hero-grid {
    row-gap: clamp(34px, 7vw, 48px);
    padding-bottom: 28px;
  }

  .training-hub,
  .missions-section,
  .achievements-section,
  .exam-banner {
    box-shadow: 0 22px 58px rgba(0, 0, 0, 0.2);
  }

  .lesson-content {
    padding-bottom: 0;
  }

  .lesson-controls {
    margin-bottom: 0;
    padding-bottom: max(10px, env(safe-area-inset-bottom));
    background: linear-gradient(to top, #080a12 72%, rgba(8, 10, 18, 0.94) 88%, transparent);
  }
}

@media (max-width: 850px) and (prefers-reduced-motion: no-preference) {
  .mobile-reveal {
    opacity: 0;
    filter: blur(4px);
    transform: translate3d(0, 26px, 0) scale(0.988);
    transition:
      opacity 0.62s cubic-bezier(0.2, 0.72, 0.2, 1),
      filter 0.62s cubic-bezier(0.2, 0.72, 0.2, 1),
      transform 0.72s cubic-bezier(0.18, 0.78, 0.18, 1);
    transition-delay: var(--reveal-delay, 0ms);
    will-change: opacity, filter, transform;
  }

  .mobile-reveal.is-revealed {
    opacity: 1;
    filter: none;
    transform: none;
  }
}

@media (max-width: 620px) {
  #view-home.is-active { gap: 27px; }

  .hero-grid {
    row-gap: 38px;
    padding-bottom: 12px;
  }

  .hero-copy {
    padding-inline: 4px;
  }

  .legal-note {
    margin-bottom: 0;
    padding-inline: 7px;
  }

  .operation-console { margin-top: 0; }

  .training-hub,
  .missions-section,
  .achievements-section,
  .exam-banner {
    margin-top: 0;
    margin-bottom: 0;
  }

  .lesson-content {
    padding: 14px 0 0;
  }

  .lesson-controls {
    bottom: 0;
    margin-top: 12px;
    padding: 10px 0 max(8px, env(safe-area-inset-bottom));
  }

  .glossary-backdrop {
    align-items: end;
    padding:
      max(10px, env(safe-area-inset-top))
      10px
      max(10px, env(safe-area-inset-bottom));
    background: rgba(3, 5, 12, 0.76);
    backdrop-filter: blur(16px);
  }

  .glossary-dialog {
    position: relative;
    display: grid;
    width: min(100%, 560px);
    height: min(78dvh, 700px);
    max-height: calc(100dvh - env(safe-area-inset-top) - env(safe-area-inset-bottom) - 20px);
    grid-template-rows: auto auto minmax(0, 1fr);
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 28px;
    padding: 0;
  }

  .glossary-dialog::before {
    position: absolute;
    top: 8px;
    left: 50%;
    z-index: 3;
    width: 42px;
    height: 4px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.22);
    transform: translateX(-50%);
    content: "";
  }

  .glossary-head {
    position: relative;
    top: auto;
    z-index: 2;
    align-items: center;
    margin: 0;
    border-bottom: 0;
    padding: 25px 17px 9px;
    background: transparent;
  }

  .glossary-head h2 {
    max-width: calc(100vw - 110px);
    margin: 0;
    font-size: clamp(1.22rem, 5.8vw, 1.48rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
    text-wrap: balance;
  }

  .glossary-head .icon-button {
    flex: 0 0 auto;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.045);
  }

  .glossary-intro {
    margin: 0;
    padding: 0 17px 14px;
    color: #9fa6b9;
    font-size: 0.82rem;
    line-height: 1.48;
  }

  .glossary-grid {
    min-height: 0;
    gap: 8px;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 2px 11px max(14px, env(safe-area-inset-bottom));
    scrollbar-gutter: stable;
  }

  .glossary-grid article {
    grid-template-columns: 58px minmax(0, 1fr);
    min-height: 68px;
    align-items: center;
    gap: 10px;
    border-color: rgba(255, 255, 255, 0.09);
    border-radius: 16px;
    padding: 10px 12px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.048), rgba(255, 255, 255, 0.024));
  }

  .glossary-grid strong {
    display: inline-flex;
    min-height: 36px;
    align-items: center;
    justify-content: center;
    padding: 4px 7px;
    border: 1px solid rgba(56, 217, 255, 0.16);
    border-radius: 11px;
    color: #52ddff;
    background: rgba(56, 217, 255, 0.08);
    font-size: 0.84rem;
  }

  .glossary-grid p {
    margin: 0;
    color: #c0c5d3;
    font-size: 0.81rem;
    line-height: 1.42;
  }
}

@media (max-width: 390px) {
  #view-home.is-active { gap: 23px; }
  .hero-grid { row-gap: 32px; }

  .glossary-backdrop { padding-inline: 7px; }
  .glossary-dialog { height: min(80dvh, 660px); border-radius: 24px; }
  .glossary-head { padding-inline: 14px; }
  .glossary-intro { padding-inline: 14px; }
  .glossary-grid { padding-inline: 8px; }
  .glossary-grid article { grid-template-columns: 54px minmax(0, 1fr); gap: 8px; padding-inline: 9px; }
}

@media (prefers-reduced-motion: reduce) {
  .mobile-reveal,
  .mobile-reveal.is-revealed {
    opacity: 1;
    filter: none;
    transform: none;
    transition: none;
  }
}

/* v3.3 — награда и действия урока остаются на своих местах в потоке страницы. */
.lesson-xp {
  position: static;
  inset: auto;
  width: 100%;
  margin-top: 26px;
  border: 1px solid rgba(240, 184, 74, 0.18);
  border-radius: 15px;
  padding: 13px 14px;
  background: rgba(240, 184, 74, 0.055);
}

.lesson-xp > span {
  grid-row: 1 / 3;
  align-self: center;
}

.lesson-xp strong {
  font-size: 0.82rem;
  line-height: 1.15;
}

.lesson-xp small {
  margin-top: 2px;
  line-height: 1.2;
}

@media (max-width: 850px) {
  .lesson-content {
    padding-bottom: 18px;
  }

  .lesson-controls {
    position: static;
    inset: auto;
    z-index: auto;
    margin: 16px 0 0;
    padding: 0;
    background: none;
    box-shadow: none;
    filter: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .lesson-controls::before,
  .lesson-controls::after {
    display: none;
  }

  .lesson-controls .button {
    box-shadow: none;
    filter: none;
  }
}

@media (max-width: 620px) {
  .lesson-content {
    padding: 14px 0 18px;
  }

  .lesson-controls {
    bottom: auto;
    margin-top: 14px;
    padding: 0;
  }
}