:root {
  --bg: #090b10;
  --bg-elevated: #0f1219;
  --panel: #141821;
  --panel-soft: #191e29;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.18);
  --text: #f7f8fa;
  --muted: #989eab;
  --muted-light: #c6cad2;
  --red: #e43842;
  --red-dark: #a91e29;
  --red-soft: rgba(228, 56, 66, 0.13);
  --amber: #f0b84a;
  --green: #46d487;
  --green-soft: rgba(70, 212, 135, 0.13);
  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 30px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    radial-gradient(circle at 85% 12%, rgba(228, 56, 66, 0.08), transparent 28rem),
    linear-gradient(180deg, #0b0d12 0%, #090b10 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(228, 56, 66, 0.5);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 999;
  transform: translateY(-160%);
  border-radius: 9px;
  background: var(--text);
  color: var(--bg);
  padding: 10px 14px;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 12px max(24px, calc((100vw - 1320px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(9, 11, 16, 0.82);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 0;
  padding: 0;
  background: none;
  text-align: left;
  cursor: pointer;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(228, 56, 66, 0.55);
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(228, 56, 66, 0.24), rgba(228, 56, 66, 0.03));
  box-shadow: inset 0 0 22px rgba(228, 56, 66, 0.08);
}

.brand-mark::after {
  position: absolute;
  inset: 5px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 9px;
  content: "";
}

.brand-star {
  color: var(--red);
  font-size: 20px;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-size: 15px;
  letter-spacing: 0.02em;
}

.brand-copy small {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.topbar-stats {
  display: flex;
  align-items: center;
  gap: 22px;
}

.xp-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 38px;
  padding: 0 13px;
  border: 1px solid rgba(240, 184, 74, 0.2);
  border-radius: 12px;
  background: rgba(240, 184, 74, 0.08);
  color: var(--amber);
  font-size: 12px;
}

.xp-pill strong {
  font-size: 15px;
}

.header-progress {
  display: grid;
  width: 150px;
  gap: 7px;
  color: var(--muted-light);
  font-size: 11px;
}

.mini-progress {
  height: 4px;
  overflow: hidden;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
}

.mini-progress span,
.lesson-line span,
.exam-progress span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--red), #ff7b62);
  transition: width 0.45s ease;
}

.icon-button {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--panel);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.icon-button:hover {
  border-color: var(--line-strong);
  background: var(--panel-soft);
  transform: translateY(-1px);
}

.sound-toggle {
  display: flex;
  min-height: 40px;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(70, 212, 135, 0.22);
  border-radius: 12px;
  padding: 5px 10px 5px 7px;
  color: var(--text);
  background: rgba(70, 212, 135, 0.07);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.sound-toggle:hover {
  border-color: rgba(70, 212, 135, 0.42);
  background: rgba(70, 212, 135, 0.12);
  transform: translateY(-1px);
}

.sound-toggle-icon {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 9px;
  background: rgba(70, 212, 135, 0.12);
  font-size: 14px;
}

.sound-toggle-copy {
  display: grid;
  justify-items: start;
  gap: 1px;
  line-height: 1;
}

.sound-toggle-copy small {
  color: var(--muted);
  font-size: 8px;
  font-weight: 700;
  text-transform: uppercase;
}

.sound-toggle-copy strong {
  color: var(--green);
  font-size: 9px;
  letter-spacing: 0.07em;
}

.sound-toggle.is-muted {
  border-color: var(--line);
  background: var(--panel);
}

.sound-toggle.is-muted .sound-toggle-icon {
  background: rgba(255, 255, 255, 0.06);
}

.sound-toggle.is-muted .sound-toggle-copy strong {
  color: var(--muted-light);
}

.view {
  display: none;
  animation: view-in 0.35s ease both;
}

.view.is-active {
  display: block;
}

@keyframes view-in {
  from { opacity: 0; transform: translateY(7px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-grid,
.dashboard-section,
.achievements-section,
.missions-section,
.exam-banner,
.result-shell,
.exam-intro-shell,
.exam-shell {
  width: min(1320px, calc(100% - 48px));
  margin-inline: auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(390px, 0.92fr);
  align-items: center;
  min-height: 650px;
  padding: 76px 0 64px;
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  max-width: 720px;
}

.eyebrow,
.section-kicker,
.question-kicker {
  color: var(--muted-light);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}

.eyebrow span {
  width: 28px;
  height: 2px;
  background: var(--red);
}

.hero-copy h1,
.exam-intro-copy h1 {
  margin: 0;
  font-size: clamp(50px, 6.2vw, 88px);
  font-weight: 720;
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.hero-copy h1 em {
  color: var(--red);
  font-style: normal;
}

.hero-lead {
  max-width: 620px;
  margin: 28px 0 0;
  color: var(--muted-light);
  font-size: 18px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 1px solid transparent;
  border-radius: 13px;
  padding: 0 20px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}

.button:hover:not(:disabled) {
  transform: translateY(-2px);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.button-primary {
  background: linear-gradient(135deg, var(--red), #c52331);
  box-shadow: 0 12px 30px rgba(228, 56, 66, 0.2);
  color: white;
}

.button-primary:hover:not(:disabled) {
  box-shadow: 0 16px 38px rgba(228, 56, 66, 0.3);
}

.button-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.035);
}

.button-ghost:hover:not(:disabled) {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.06);
}

.button-light {
  background: var(--text);
  color: var(--bg);
}

.button-danger {
  background: var(--red);
  color: white;
}

.button-wide {
  width: 100%;
  min-height: 54px;
}

.text-button {
  border: 0;
  background: none;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 4px;
}

.text-button:hover {
  color: var(--text);
  text-decoration-color: currentColor;
}

.legal-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  max-width: 560px;
  margin: 23px 0 0;
  color: #777e8b;
  font-size: 11px;
  line-height: 1.55;
}

.hero-visual {
  position: relative;
  display: grid;
  min-height: 480px;
  place-items: center;
  isolation: isolate;
}

.hero-visual::before {
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(228, 56, 66, 0.13);
  filter: blur(90px);
  content: "";
  z-index: -1;
}

.radar {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 50%;
}

.radar::before,
.radar::after {
  position: absolute;
  background: rgba(255, 255, 255, 0.05);
  content: "";
}

.radar::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
}

.radar::after {
  top: 0;
  left: 50%;
  width: 1px;
  height: 100%;
}

.radar-one { width: 430px; height: 430px; }
.radar-two { width: 560px; height: 560px; opacity: 0.55; }

.academy-card {
  position: relative;
  width: 305px;
  height: 420px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 28px;
  padding: 24px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.06), transparent 45%),
    linear-gradient(160deg, #1a202b 0%, #0c0f15 72%);
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.55);
  transform: rotate(5deg);
}

.academy-card::after {
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 21px;
  content: "";
}

.card-glow {
  position: absolute;
  top: -70px;
  right: -80px;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: rgba(228, 56, 66, 0.19);
  filter: blur(44px);
}

.academy-card-top,
.academy-card-bottom {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  color: #a7acb5;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.academy-emblem {
  position: relative;
  z-index: 2;
  display: grid;
  width: 132px;
  height: 132px;
  margin: 48px auto 27px;
  place-items: center;
  border: 1px solid rgba(228, 56, 66, 0.4);
  border-radius: 50%;
  box-shadow: inset 0 0 40px rgba(228, 56, 66, 0.09);
}

.emblem-ring {
  position: absolute;
  inset: 12px;
  border: 1px dashed rgba(255, 255, 255, 0.14);
  border-radius: 50%;
}

.emblem-star {
  color: var(--red);
  font-size: 55px;
  filter: drop-shadow(0 7px 18px rgba(228, 56, 66, 0.3));
}

.academy-card-title {
  position: relative;
  z-index: 2;
  text-align: center;
  font-size: 26px;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: 0.08em;
}

.academy-card-bottom {
  display: grid;
  margin-top: 42px;
  gap: 5px;
}

.academy-card-bottom strong {
  color: var(--text);
  font-size: 11px;
  letter-spacing: 0.18em;
}

.barcode {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 70px;
  height: 25px;
  opacity: 0.5;
  background: repeating-linear-gradient(90deg, #fff 0 2px, transparent 2px 5px, #fff 5px 6px, transparent 6px 9px);
}

.floating-chip {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  padding: 9px 13px;
  background: rgba(18, 22, 30, 0.88);
  box-shadow: var(--shadow);
  color: var(--muted-light);
  font-size: 11px;
  backdrop-filter: blur(14px);
}

.floating-chip span {
  color: var(--text);
  font-size: 17px;
  font-weight: 800;
}

.chip-one { top: 88px; left: 5%; }
.chip-two { right: 2%; bottom: 96px; }

.dashboard-section,
.missions-section {
  padding: 70px 0 0;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 25px;
}

.section-kicker {
  margin: 0 0 9px;
  color: var(--red);
  font-size: 10px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 36px);
  letter-spacing: -0.035em;
}

.section-caption {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 0.7fr 0.7fr;
  gap: 14px;
}

.progress-card,
.stat-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012));
}

.progress-card {
  display: flex;
  align-items: center;
  gap: 26px;
  min-height: 180px;
  padding: 25px 30px;
}

.progress-orbit,
.result-ring {
  --progress: 0deg;
  position: relative;
  display: grid;
  flex: 0 0 auto;
  width: 124px;
  height: 124px;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(var(--red) var(--progress), rgba(255, 255, 255, 0.07) 0);
}

.progress-orbit::before,
.result-ring::before {
  position: absolute;
  inset: 9px;
  border-radius: 50%;
  background: var(--panel);
  content: "";
}

.progress-orbit > div,
.result-ring strong,
.result-ring span {
  position: relative;
  z-index: 1;
}

.progress-orbit > div {
  display: grid;
  place-items: center;
}

.progress-orbit strong {
  font-size: 29px;
}

.progress-orbit span,
.result-ring span {
  color: var(--muted);
  font-size: 10px;
  text-transform: uppercase;
}

.progress-copy h3 {
  margin: 13px 0 7px;
  font-size: 19px;
}

.progress-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 25px;
  border: 1px solid rgba(228, 56, 66, 0.18);
  border-radius: 99px;
  padding: 0 10px;
  background: var(--red-soft);
  color: #ff7b83;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.stat-card {
  display: grid;
  place-content: center;
  gap: 13px;
  min-height: 180px;
  padding: 25px;
}

.stat-icon {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 12px;
  background: var(--green-soft);
  color: var(--green);
  font-weight: 900;
}

.stat-icon.amber {
  background: rgba(240, 184, 74, 0.1);
  color: var(--amber);
}

.stat-card div {
  display: grid;
  gap: 3px;
}

.stat-card strong {
  font-size: 28px;
}

.stat-card span:last-child {
  color: var(--muted);
  font-size: 11px;
}

.missions-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.mission-card {
  position: relative;
  min-height: 260px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 21px;
  background: var(--panel);
  text-align: left;
  cursor: pointer;
  transition: transform 0.24s ease, border-color 0.24s ease, background 0.24s ease;
}

.mission-card::before {
  position: absolute;
  top: -100px;
  right: -100px;
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background: var(--red-soft);
  filter: blur(10px);
  content: "";
  opacity: 0;
  transition: opacity 0.25s ease;
}

.mission-card:hover {
  z-index: 2;
  border-color: rgba(228, 56, 66, 0.4);
  background: #181c25;
  transform: translateY(-5px);
}

.mission-card:hover::before {
  opacity: 1;
}

.mission-card.is-complete {
  border-color: rgba(70, 212, 135, 0.24);
}

.mission-card-head,
.mission-card-foot {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mission-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
  font-size: 22px;
}

.mission-status {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.mission-card.is-complete .mission-status {
  color: var(--green);
}

.mission-card h3 {
  position: relative;
  z-index: 1;
  margin: 38px 0 7px;
  font-size: 19px;
  letter-spacing: -0.02em;
}

.mission-card > p {
  position: relative;
  z-index: 1;
  min-height: 42px;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.mission-card-foot {
  margin-top: 27px;
  color: var(--muted-light);
  font-size: 10px;
}

.mission-xp {
  color: var(--amber);
}

.exam-banner {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 25px;
  overflow: hidden;
  margin-top: 70px;
  margin-bottom: 80px;
  border: 1px solid rgba(228, 56, 66, 0.26);
  border-radius: var(--radius-lg);
  padding: 30px 34px;
  background:
    radial-gradient(circle at 85% 20%, rgba(228, 56, 66, 0.22), transparent 25rem),
    linear-gradient(135deg, #171a22, #11141a);
}

.exam-banner::before {
  position: absolute;
  top: -160px;
  right: 20%;
  width: 320px;
  height: 320px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  content: "";
}

.exam-banner-icon {
  display: grid;
  width: 70px;
  height: 70px;
  place-items: center;
  border: 1px solid rgba(228, 56, 66, 0.35);
  border-radius: 20px;
  background: var(--red-soft);
  color: var(--red);
  font-size: 32px;
}

.exam-banner-copy,
.exam-banner-status {
  position: relative;
  z-index: 2;
}

.exam-banner-copy h2 {
  margin: 0;
  font-size: 26px;
  letter-spacing: -0.03em;
}

.exam-banner-copy p:last-child {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.exam-banner-status {
  display: grid;
  justify-items: end;
  gap: 9px;
}

.exam-banner-status > span {
  color: var(--muted);
  font-size: 10px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  width: min(1320px, calc(100% - 48px));
  margin: 0 auto;
  border-top: 1px solid var(--line);
  padding: 25px 0 32px;
  color: #626875;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Lesson */
.lesson-shell {
  display: grid;
  grid-template-columns: 310px minmax(0, 1fr);
  min-height: calc(100vh - 76px);
}

.lesson-sidebar {
  position: sticky;
  top: 76px;
  align-self: start;
  min-height: calc(100vh - 76px);
  border-right: 1px solid var(--line);
  padding: 34px 30px;
  background: rgba(13, 16, 22, 0.88);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border: 0;
  padding: 0;
  background: none;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
}

.back-link:hover {
  color: var(--text);
}

.lesson-identity {
  position: relative;
  margin-top: 54px;
}

.lesson-number {
  position: absolute;
  top: -49px;
  right: 0;
  color: rgba(255, 255, 255, 0.035);
  font-size: 78px;
  font-weight: 900;
  letter-spacing: -0.08em;
}

.lesson-icon {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid rgba(228, 56, 66, 0.24);
  border-radius: 17px;
  background: var(--red-soft);
  font-size: 27px;
}

.lesson-identity p {
  margin: 23px 0 7px;
  color: var(--red);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.lesson-identity h2 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.04em;
}

.step-list {
  display: grid;
  gap: 17px;
  margin-top: 50px;
}

.lesson-step {
  display: grid;
  grid-template-columns: 27px 1fr;
  align-items: center;
  gap: 11px;
  color: #666d79;
  font-size: 11px;
}

.lesson-step span:first-child {
  display: grid;
  width: 27px;
  height: 27px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 9px;
  font-weight: 800;
}

.lesson-step.is-current {
  color: var(--text);
}

.lesson-step.is-current span:first-child {
  border-color: var(--red);
  background: var(--red);
}

.lesson-step.is-done {
  color: var(--green);
}

.lesson-step.is-done span:first-child {
  border-color: rgba(70, 212, 135, 0.25);
  background: var(--green-soft);
}

.lesson-xp {
  position: absolute;
  bottom: 32px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  column-gap: 9px;
  color: var(--amber);
}

.lesson-xp strong {
  font-size: 13px;
}

.lesson-xp small {
  grid-column: 2;
  color: var(--muted);
  font-size: 9px;
}

.lesson-content {
  width: min(860px, calc(100% - 70px));
  margin: 0 auto;
  padding: 45px 0 50px;
}

.lesson-topline {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.04em;
}

.lesson-line {
  height: 3px;
  overflow: hidden;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.07);
}

.lesson-panel {
  min-height: 550px;
  margin-top: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(30px, 5vw, 58px);
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.035), transparent 50%),
    var(--panel);
  box-shadow: var(--shadow);
}

.lesson-panel .lesson-eyebrow {
  color: var(--red);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.lesson-panel h1 {
  max-width: 660px;
  margin: 17px 0 22px;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.04;
  letter-spacing: -0.05em;
}

.lesson-panel .lesson-text {
  max-width: 710px;
  margin: 0;
  color: var(--muted-light);
  font-size: 16px;
  line-height: 1.75;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 38px;
}

.fact-card {
  display: flex;
  min-height: 82px;
  align-items: flex-start;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 15px;
  padding: 16px;
  background: rgba(0, 0, 0, 0.13);
  color: var(--muted-light);
  font-size: 12px;
  line-height: 1.55;
}

.fact-card span {
  display: grid;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 7px;
  background: var(--red-soft);
  color: var(--red);
  font-size: 9px;
  font-weight: 900;
}

.lesson-controls {
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
}

.checkpoint-head {
  display: flex;
  align-items: center;
  gap: 13px;
}

.checkpoint-badge {
  display: grid;
  width: 45px;
  height: 45px;
  place-items: center;
  border-radius: 14px;
  background: rgba(240, 184, 74, 0.1);
  color: var(--amber);
  font-weight: 900;
}

.checkpoint-head div {
  display: grid;
  gap: 3px;
}

.checkpoint-head strong {
  font-size: 13px;
}

.checkpoint-head span {
  color: var(--muted);
  font-size: 10px;
}

.checkpoint-question {
  margin: 38px 0 24px;
  font-size: clamp(25px, 4vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.checkpoint-options {
  display: grid;
  gap: 10px;
}

.checkpoint-option,
.answer-option {
  display: grid;
  grid-template-columns: 34px 1fr;
  align-items: center;
  gap: 13px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px 15px;
  background: rgba(255, 255, 255, 0.02);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.checkpoint-option:hover,
.answer-option:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.045);
  transform: translateX(3px);
}

.checkpoint-option .option-letter,
.answer-option .option-letter {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--muted-light);
  font-size: 11px;
  font-weight: 800;
}

.checkpoint-option.is-selected,
.answer-option.is-selected {
  border-color: rgba(228, 56, 66, 0.7);
  background: var(--red-soft);
}

.checkpoint-option.is-correct {
  border-color: rgba(70, 212, 135, 0.55);
  background: var(--green-soft);
}

.checkpoint-option.is-wrong {
  border-color: rgba(228, 56, 66, 0.7);
  background: var(--red-soft);
}

.checkpoint-feedback {
  display: none;
  margin-top: 15px;
  border-radius: 13px;
  padding: 13px 15px;
  font-size: 12px;
  line-height: 1.55;
}

.checkpoint-feedback.is-visible {
  display: block;
}

.checkpoint-feedback.is-success {
  background: var(--green-soft);
  color: #8af0b8;
}

.checkpoint-feedback.is-error {
  background: var(--red-soft);
  color: #ff959b;
}

/* Exam intro */
.exam-intro-shell {
  min-height: calc(100vh - 76px);
  padding: 34px 0 70px;
}

.exam-intro-grid {
  display: grid;
  grid-template-columns: 1fr minmax(380px, 0.72fr);
  align-items: center;
  gap: 80px;
  min-height: 640px;
}

.exam-intro-copy {
  position: relative;
  padding-left: 20px;
}

.exam-seal {
  display: grid;
  width: 115px;
  height: 115px;
  margin-bottom: 31px;
  place-items: center;
  border: 1px solid rgba(228, 56, 66, 0.4);
  border-radius: 50%;
  background: var(--red-soft);
  box-shadow: 0 0 80px rgba(228, 56, 66, 0.12);
}

.exam-seal span {
  color: var(--red);
  font-size: 52px;
}

.exam-intro-copy h1 {
  font-size: clamp(50px, 6vw, 76px);
}

.exam-intro-copy > p:last-child {
  max-width: 580px;
  margin: 28px 0 0;
  color: var(--muted-light);
  font-size: 16px;
  line-height: 1.7;
}

.candidate-card {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 30px;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.05), transparent 50%),
    var(--panel);
  box-shadow: var(--shadow);
}

.candidate-card-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 35px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 17px;
  color: var(--muted);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.candidate-card > label:not(.honor-check) {
  display: block;
  margin-bottom: 10px;
  color: var(--muted-light);
  font-size: 11px;
  font-weight: 700;
}

.input-wrap {
  display: flex;
  min-height: 57px;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  padding: 0 16px;
  background: rgba(0, 0, 0, 0.19);
}

.input-wrap:focus-within {
  border-color: rgba(228, 56, 66, 0.7);
  box-shadow: 0 0 0 3px rgba(228, 56, 66, 0.1);
}

.input-wrap > span {
  color: var(--red);
  font-weight: 800;
}

.input-wrap input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 16px;
}

.input-wrap input::placeholder {
  color: #555c68;
}

.field-hint,
.field-error,
.attempt-note {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
}

.field-error {
  min-height: 15px;
  color: #ff8d94;
}

.exam-rules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 25px 0;
  border-block: 1px solid var(--line);
  padding: 19px 0;
}

.exam-rules div {
  display: grid;
  place-items: center;
  gap: 3px;
}

.exam-rules div + div {
  border-left: 1px solid var(--line);
}

.exam-rules strong {
  font-size: 20px;
}

.exam-rules span {
  color: var(--muted);
  font-size: 9px;
}

.honor-check {
  display: grid;
  grid-template-columns: 21px 1fr;
  align-items: start;
  gap: 10px;
  margin: 0 0 20px;
  color: var(--muted-light);
  font-size: 11px;
  line-height: 1.5;
  cursor: pointer;
}

.honor-check input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.custom-check {
  display: grid;
  width: 21px;
  height: 21px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: transparent;
}

.honor-check input:checked + .custom-check {
  border-color: var(--red);
  background: var(--red);
  color: white;
}

.honor-check input:focus-visible + .custom-check {
  outline: 3px solid rgba(228, 56, 66, 0.4);
  outline-offset: 3px;
}

.attempt-note {
  text-align: center;
}

/* Exam */
.exam-shell {
  max-width: 980px;
  min-height: calc(100vh - 76px);
  padding: 38px 0 55px;
}

.exam-header,
.exam-header-right,
.exam-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.exam-header p {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.exam-header p strong {
  color: var(--text);
}

.exam-header h2 {
  margin: 0;
  font-size: 17px;
}

.topic-chip {
  display: inline-flex;
  min-height: 33px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 0 13px;
  color: var(--muted-light);
  font-size: 10px;
}

.exam-progress {
  height: 5px;
  overflow: hidden;
  margin-top: 22px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.07);
}

.question-card {
  position: relative;
  min-height: 570px;
  margin-top: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(30px, 5vw, 60px);
  background:
    radial-gradient(circle at 95% 5%, rgba(228, 56, 66, 0.1), transparent 23rem),
    var(--panel);
  box-shadow: var(--shadow);
}

.question-index {
  position: absolute;
  top: 14px;
  right: 24px;
  color: rgba(255, 255, 255, 0.035);
  font-size: 100px;
  font-weight: 900;
  letter-spacing: -0.08em;
  pointer-events: none;
}

.question-kicker {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--red);
}

.question-card h1 {
  position: relative;
  z-index: 1;
  max-width: 770px;
  margin: 20px 0 35px;
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.15;
  letter-spacing: -0.045em;
}

.answers-list {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px;
}

.answer-option {
  min-height: 72px;
  padding: 16px;
}

.answer-option .answer-text {
  color: var(--muted-light);
  font-size: 13px;
  line-height: 1.45;
}

.answer-option.is-selected .option-letter {
  border-color: var(--red);
  background: var(--red);
  color: white;
}

.exam-controls {
  margin-top: 19px;
}

.exam-controls p {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
}

kbd {
  display: inline-grid;
  min-width: 22px;
  height: 22px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--panel);
  box-shadow: 0 2px 0 rgba(255, 255, 255, 0.06);
  color: var(--muted-light);
  font-size: 9px;
}

/* Results */
.result-shell {
  max-width: 1100px;
  padding: 45px 0 80px;
}

.result-hero {
  position: relative;
  min-height: 350px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  padding: 28px 35px 35px;
  background:
    radial-gradient(circle at 80% 50%, rgba(70, 212, 135, 0.08), transparent 20rem),
    radial-gradient(circle at 15% 15%, rgba(228, 56, 66, 0.12), transparent 22rem),
    linear-gradient(145deg, #191e28, #0e1117);
  box-shadow: var(--shadow);
}

.result-watermark {
  position: absolute;
  right: -20px;
  bottom: -20px;
  color: rgba(255, 255, 255, 0.022);
  font-size: 100px;
  font-weight: 900;
  letter-spacing: -0.06em;
}

.result-topline {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 17px;
  color: var(--muted);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.result-main {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 35px;
  max-width: 770px;
  margin-top: 40px;
}

.result-ring {
  --progress: 0deg;
  width: 155px;
  height: 155px;
}

.result-ring::before {
  inset: 11px;
  background: #131720;
}

.result-ring strong {
  align-self: end;
  margin-bottom: 1px;
  font-size: 39px;
  letter-spacing: -0.05em;
}

.result-ring span {
  align-self: start;
}

.result-verdict h1 {
  margin: 14px 0 8px;
  font-size: clamp(34px, 5vw, 54px);
  letter-spacing: -0.055em;
}

.result-verdict > p {
  margin: 0;
  color: var(--muted-light);
  font-size: 16px;
}

.result-verdict > p strong {
  color: var(--text);
}

.result-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 19px;
}

.result-meta span {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 9px;
  color: var(--muted);
  font-size: 9px;
}

.result-stamp {
  position: absolute;
  top: 102px;
  right: 55px;
  display: grid;
  width: 145px;
  height: 145px;
  place-items: center;
  align-content: center;
  border: 2px solid rgba(70, 212, 135, 0.4);
  border-radius: 50%;
  color: rgba(70, 212, 135, 0.78);
  text-align: center;
  transform: rotate(-8deg);
}

.result-stamp::before {
  position: absolute;
  inset: 7px;
  border: 1px dashed currentColor;
  border-radius: 50%;
  content: "";
}

.result-stamp span {
  font-size: 24px;
}

.result-stamp strong {
  font-size: 11px;
  letter-spacing: 0.1em;
}

.result-stamp small {
  margin-top: 3px;
  font-size: 7px;
  text-transform: uppercase;
}

.result-stamp.is-failed {
  border-color: rgba(228, 56, 66, 0.45);
  color: rgba(228, 56, 66, 0.82);
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 20px 0 55px;
}

.breakdown-section,
.mistakes-section {
  margin-top: 50px;
}

.topic-results {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px;
}

.topic-result {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 15px;
  background: var(--panel);
}

.topic-result-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.035);
  font-size: 19px;
}

.topic-result-copy {
  display: grid;
  gap: 7px;
}

.topic-result-copy strong {
  font-size: 12px;
}

.topic-bar {
  width: 100%;
  height: 4px;
  overflow: hidden;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.07);
}

.topic-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--red);
}

.topic-result.is-perfect .topic-bar span {
  background: var(--green);
}

.topic-result-score {
  display: grid;
  justify-items: end;
  gap: 3px;
}

.topic-result-score strong {
  font-size: 17px;
}

.topic-result-score span {
  color: var(--muted);
  font-size: 9px;
}

.mistake-count {
  display: inline-flex;
  border-radius: 99px;
  padding: 7px 11px;
  background: var(--red-soft);
  color: #ff878e;
  font-size: 10px;
}

.mistakes-list {
  display: grid;
  gap: 12px;
}

.mistake-card {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 17px;
  padding: 20px;
  background: var(--panel);
}

.mistake-index {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 11px;
  background: var(--red-soft);
  color: var(--red);
  font-size: 11px;
  font-weight: 800;
}

.mistake-topic {
  color: var(--red);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.mistake-card h3 {
  margin: 7px 0 14px;
  font-size: 15px;
  line-height: 1.45;
}

.mistake-answers {
  display: grid;
  gap: 6px;
  color: var(--muted-light);
  font-size: 11px;
}

.mistake-answers .wrong {
  color: #ff858d;
}

.mistake-answers .correct {
  color: #7de7ad;
}

.mistake-explanation {
  margin: 13px 0 0;
  border-left: 2px solid var(--red);
  padding-left: 11px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.perfect-state {
  border: 1px solid rgba(70, 212, 135, 0.2);
  border-radius: 18px;
  padding: 32px;
  background: var(--green-soft);
  color: #93efbb;
  text-align: center;
}

.perfect-state strong {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
}

/* Dialog and toast */
.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 100;
  max-width: min(360px, calc(100vw - 48px));
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  padding: 13px 16px;
  background: rgba(22, 26, 35, 0.96);
  box-shadow: var(--shadow);
  color: var(--muted-light);
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(15px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.dialog-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(5, 6, 9, 0.78);
  backdrop-filter: blur(7px);
}

.dialog-backdrop[hidden] {
  display: none;
}

.dialog {
  width: min(430px, 100%);
  border: 1px solid var(--line-strong);
  border-radius: 24px;
  padding: 30px;
  background: var(--panel);
  box-shadow: var(--shadow);
  text-align: center;
}

.dialog-icon {
  display: grid;
  width: 48px;
  height: 48px;
  margin: 0 auto 17px;
  place-items: center;
  border-radius: 14px;
  background: var(--red-soft);
  color: var(--red);
  font-weight: 900;
}

.dialog h2 {
  margin: 0;
  font-size: 23px;
}

.dialog p {
  margin: 9px 0 23px;
  color: var(--muted);
  font-size: 13px;
}

.dialog-actions {
  display: flex;
  justify-content: center;
  gap: 9px;
}

noscript {
  position: fixed;
  inset: auto 20px 20px;
  z-index: 500;
  border-radius: 12px;
  padding: 15px;
  background: var(--red);
  color: white;
  text-align: center;
}

@media (max-width: 1080px) {
  .hero-grid {
    grid-template-columns: 1fr 0.8fr;
  }

  .hero-copy h1 {
    font-size: clamp(50px, 7vw, 70px);
  }

  .academy-card {
    width: 270px;
    height: 390px;
  }

  .radar-one { width: 370px; height: 370px; }
  .radar-two { width: 460px; height: 460px; }
  .missions-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .exam-intro-grid { gap: 40px; }
  .result-stamp { right: 35px; }
}

@media (max-width: 850px) {
  .topbar {
    min-height: 68px;
    padding-inline: 20px;
  }

  .brand-copy small,
  .header-progress {
    display: none;
  }

  .topbar-stats {
    gap: 9px;
  }

  .hero-grid,
  .dashboard-section,
  .achievements-section,
  .missions-section,
  .exam-banner,
  .result-shell,
  .exam-intro-shell,
  .exam-shell {
    width: min(100% - 32px, 720px);
  }

  .hero-grid {
    grid-template-columns: 1fr;
    padding-top: 55px;
  }

  .hero-copy {
    text-align: center;
  }

  .eyebrow,
  .hero-actions,
  .legal-note {
    justify-content: center;
    margin-inline: auto;
  }

  .hero-lead {
    margin-inline: auto;
  }

  .hero-visual {
    min-height: 510px;
  }

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

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

  .stat-card {
    min-height: 130px;
    place-content: start;
    grid-template-columns: auto 1fr;
    align-items: center;
  }

  .exam-banner {
    grid-template-columns: auto 1fr;
  }

  .exam-banner-status {
    grid-column: 1 / -1;
    grid-template-columns: 1fr auto;
    align-items: center;
    justify-items: start;
  }

  .lesson-shell {
    display: block;
  }

  .lesson-sidebar {
    position: static;
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 22px 25px;
  }

  .lesson-identity {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    column-gap: 14px;
    margin-top: 25px;
  }

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

  .lesson-identity p { margin: 0 0 3px; }
  .lesson-icon { grid-row: 1 / 3; }
  .lesson-number { top: -20px; }

  .step-list {
    display: flex;
    margin-top: 20px;
  }

  .lesson-step {
    grid-template-columns: auto;
  }

  .lesson-step span:last-child {
    display: none;
  }

  .lesson-xp {
    top: 70px;
    right: 25px;
    bottom: auto;
  }

  .lesson-content {
    width: min(100% - 32px, 720px);
    padding-top: 28px;
  }

  .exam-intro-grid {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 55px;
  }

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

  .exam-seal {
    margin-inline: auto;
  }

  .exam-intro-copy > p:last-child {
    margin-inline: auto;
  }

  .candidate-card {
    max-width: 560px;
    margin-inline: auto;
  }

  .result-stamp {
    display: none;
  }

  .result-main {
    max-width: none;
  }
}

@media (max-width: 590px) {
  .brand-mark {
    width: 39px;
    height: 39px;
  }

  .brand-copy strong {
    font-size: 13px;
  }

  .xp-pill {
    min-height: 35px;
    padding: 0 10px;
  }

  .hero-grid,
  .dashboard-section,
  .achievements-section,
  .missions-section,
  .exam-banner,
  .result-shell,
  .exam-intro-shell,
  .exam-shell {
    width: min(100% - 24px, 520px);
  }

  .hero-grid {
    min-height: auto;
    padding-top: 42px;
  }

  .eyebrow {
    font-size: 9px;
  }

  .hero-copy h1 {
    font-size: clamp(44px, 14vw, 62px);
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-actions {
    display: grid;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 445px;
  }

  .academy-card {
    width: 230px;
    height: 340px;
    padding: 20px;
  }

  .academy-emblem {
    width: 105px;
    height: 105px;
    margin-top: 37px;
    margin-bottom: 20px;
  }

  .academy-card-title {
    font-size: 22px;
  }

  .academy-card-bottom {
    margin-top: 30px;
  }

  .radar-one { width: 310px; height: 310px; }
  .radar-two { width: 390px; height: 390px; }
  .floating-chip { font-size: 9px; }
  .chip-one { left: 0; }
  .chip-two { right: 0; bottom: 70px; }

  .section-heading {
    align-items: flex-start;
  }

  .section-caption {
    display: none;
  }

  .dashboard-section,
  .missions-section {
    padding-top: 55px;
  }

  .progress-card {
    display: grid;
    justify-items: center;
    padding: 25px 20px;
    text-align: center;
  }

  .dashboard-grid {
    gap: 10px;
  }

  .stat-card {
    display: grid;
    grid-template-columns: 1fr;
    min-height: 145px;
    justify-items: center;
    padding: 20px;
    text-align: center;
  }

  .missions-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .mission-card {
    min-height: 215px;
  }

  .mission-card h3 {
    margin-top: 25px;
  }

  .exam-banner {
    grid-template-columns: 1fr;
    padding: 25px;
    text-align: center;
  }

  .exam-banner-icon {
    margin-inline: auto;
  }

  .exam-banner-status {
    display: grid;
    grid-column: auto;
    grid-template-columns: 1fr;
    justify-items: stretch;
  }

  .site-footer {
    display: grid;
    width: calc(100% - 24px);
    gap: 8px;
    text-align: center;
  }

  .lesson-sidebar {
    padding-inline: 17px;
  }

  .lesson-xp {
    display: none;
  }

  .lesson-number {
    right: 10px;
  }

  .lesson-panel {
    min-height: 540px;
    padding: 28px 20px;
  }

  .lesson-panel h1 {
    font-size: 34px;
  }

  .lesson-panel .lesson-text {
    font-size: 14px;
  }

  .fact-grid {
    grid-template-columns: 1fr;
  }

  .lesson-controls {
    gap: 9px;
  }

  .lesson-controls .button {
    flex: 1;
    padding-inline: 12px;
  }

  .candidate-card {
    padding: 24px 18px;
  }

  .exam-intro-copy h1 {
    font-size: 49px;
  }

  .exam-header {
    align-items: flex-start;
  }

  .topic-chip {
    display: none;
  }

  .question-card {
    min-height: 590px;
    padding: 34px 18px;
  }

  .question-index {
    font-size: 76px;
  }

  .question-card h1 {
    margin-bottom: 26px;
    font-size: 30px;
  }

  .answers-list {
    grid-template-columns: 1fr;
  }

  .answer-option {
    min-height: 62px;
  }

  .exam-controls p {
    display: none;
  }

  .exam-controls .button {
    width: 100%;
  }

  .result-hero {
    padding: 23px 18px 28px;
  }

  .result-main {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .result-verdict h1 {
    font-size: 38px;
  }

  .result-meta {
    justify-content: center;
  }

  .result-actions {
    display: grid;
  }

  .result-actions .button {
    width: 100%;
  }

  .topic-results {
    grid-template-columns: 1fr;
  }

  .mistake-card {
    grid-template-columns: 1fr;
  }
}

/* Молодёжная игровая тема v2 */
:root {
  --bg: #080912;
  --bg-elevated: #0d101c;
  --panel: #121522;
  --panel-soft: #191d2c;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.17);
  --text: #f8f8fc;
  --muted: #8f95a8;
  --muted-light: #c7cbd8;
  --red: #ff3e61;
  --red-dark: #c31f47;
  --red-soft: rgba(255, 62, 97, 0.13);
  --violet: #795cff;
  --violet-soft: rgba(121, 92, 255, 0.14);
  --cyan: #42d6ff;
  --amber: #ffc857;
  --green: #49dc90;
  --green-soft: rgba(73, 220, 144, 0.13);
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
}

body {
  background:
    radial-gradient(circle at 8% 3%, rgba(121, 92, 255, 0.17), transparent 30rem),
    radial-gradient(circle at 93% 16%, rgba(255, 62, 97, 0.15), transparent 32rem),
    linear-gradient(180deg, #0b0d17 0%, #080912 58%, #070810 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  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: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
  content: "";
  pointer-events: none;
}

.topbar {
  border-bottom-color: rgba(255, 255, 255, 0.075);
  background: rgba(8, 9, 18, 0.78);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
}

.brand-mark {
  border: 0;
  background: linear-gradient(145deg, var(--red), var(--violet));
  box-shadow: 0 10px 28px rgba(255, 62, 97, 0.25);
}

.brand-mark::after {
  border-color: rgba(255, 255, 255, 0.24);
}

.brand-star {
  color: white;
}

.brand-copy strong {
  font-size: 16px;
  letter-spacing: -0.01em;
}

.brand-copy small {
  color: #9b9fb0;
  letter-spacing: 0.1em;
}

.xp-pill {
  border-color: rgba(255, 200, 87, 0.26);
  border-radius: 14px;
  background: rgba(255, 200, 87, 0.09);
  box-shadow: inset 0 0 22px rgba(255, 200, 87, 0.04);
}

.mini-progress span,
.lesson-line span,
.exam-progress span {
  background: linear-gradient(90deg, var(--red), #ff7c7a 45%, var(--violet));
  box-shadow: 0 0 14px rgba(255, 62, 97, 0.35);
}

.hero-grid {
  grid-template-columns: minmax(0, 1.12fr) minmax(390px, 0.88fr);
  min-height: 625px;
  padding-top: 64px;
}

.eyebrow {
  width: fit-content;
  border: 1px solid rgba(121, 92, 255, 0.25);
  border-radius: 999px;
  padding: 8px 13px;
  background: var(--violet-soft);
  color: #c9c0ff;
  letter-spacing: 0.09em;
}

.eyebrow span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--violet);
  box-shadow: 0 0 12px var(--violet);
}

.hero-copy h1 {
  max-width: 780px;
  font-size: clamp(52px, 6.1vw, 86px);
  font-weight: 820;
  letter-spacing: -0.065em;
}

.hero-copy h1 em {
  background: linear-gradient(100deg, #ff3e61 5%, #ff826f 44%, #9a7cff 95%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.hero-lead {
  max-width: 660px;
  color: #b3b8c8;
  font-size: 17px;
}

.button {
  min-height: 52px;
  border-radius: 16px;
  padding-inline: 22px;
}

.button-primary {
  background: linear-gradient(110deg, var(--red), #ed3b79 55%, var(--violet));
  box-shadow: 0 14px 34px rgba(255, 62, 97, 0.24);
}

.button-primary:hover:not(:disabled) {
  box-shadow: 0 18px 44px rgba(255, 62, 97, 0.34);
}

.button-ghost {
  background: rgba(255, 255, 255, 0.045);
  backdrop-filter: blur(12px);
}

.legal-note {
  border-left: 2px solid rgba(255, 255, 255, 0.12);
  padding-left: 11px;
}

.hero-visual::before {
  width: 390px;
  height: 390px;
  background: linear-gradient(135deg, rgba(255, 62, 97, 0.2), rgba(121, 92, 255, 0.21));
}

.academy-card {
  width: 315px;
  height: 425px;
  border-color: rgba(255, 255, 255, 0.19);
  background:
    radial-gradient(circle at 80% 12%, rgba(255, 62, 97, 0.28), transparent 16rem),
    radial-gradient(circle at 8% 80%, rgba(121, 92, 255, 0.32), transparent 17rem),
    linear-gradient(155deg, #22273a 0%, #111522 58%, #0b0e17 100%);
  box-shadow: 0 36px 100px rgba(0, 0, 0, 0.55), 0 0 50px rgba(121, 92, 255, 0.08);
  transform: rotate(-3deg);
}

.academy-card::after {
  border-color: rgba(255, 255, 255, 0.1);
}

.academy-emblem {
  border-color: rgba(255, 255, 255, 0.16);
  background: linear-gradient(145deg, rgba(255, 62, 97, 0.16), rgba(121, 92, 255, 0.2));
}

.emblem-star {
  color: white;
  filter: drop-shadow(0 7px 20px rgba(255, 62, 97, 0.55));
}

.academy-card-title {
  background: linear-gradient(100deg, #fff, #d8d1ff);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.floating-chip {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(18, 21, 34, 0.82);
}

.floating-chip span {
  background: linear-gradient(100deg, var(--red), #a489ff);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.section-kicker {
  background: linear-gradient(90deg, var(--red), #a78cff);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  letter-spacing: 0.13em;
}

.section-heading h2 {
  font-weight: 780;
  letter-spacing: -0.045em;
}

.progress-card,
.stat-card {
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.045), transparent 55%),
    rgba(18, 21, 34, 0.88);
  backdrop-filter: blur(14px);
}

.progress-card {
  border-color: rgba(121, 92, 255, 0.18);
}

.progress-orbit,
.result-ring {
  background: conic-gradient(var(--red) 0deg, var(--violet) var(--progress), rgba(255, 255, 255, 0.07) 0);
  box-shadow: 0 0 36px rgba(121, 92, 255, 0.08);
}

.progress-orbit::before,
.result-ring::before {
  background: #121522;
}

.status-badge {
  border-color: rgba(255, 62, 97, 0.23);
  background: rgba(255, 62, 97, 0.11);
}

.missions-grid {
  gap: 16px;
}

.mission-card {
  min-height: 250px;
  border-radius: 24px;
  background:
    radial-gradient(circle at 100% 0%, rgba(255, 62, 97, 0.1), transparent 14rem),
    #121522;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.14);
}

.mission-card:nth-child(3n + 2) {
  background:
    radial-gradient(circle at 100% 0%, rgba(121, 92, 255, 0.14), transparent 14rem),
    #121522;
}

.mission-card:nth-child(3n) {
  background:
    radial-gradient(circle at 100% 0%, rgba(66, 214, 255, 0.11), transparent 14rem),
    #121522;
}

.mission-card:hover {
  border-color: rgba(255, 62, 97, 0.44);
  background-color: #171b2a;
  transform: translateY(-7px) scale(1.01);
}

.mission-icon {
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 17px;
  background: linear-gradient(145deg, rgba(255, 62, 97, 0.2), rgba(121, 92, 255, 0.18));
  box-shadow: inset 0 0 22px rgba(255, 255, 255, 0.03);
}

.mission-card h3 {
  font-size: 20px;
}

.exam-banner {
  border-color: rgba(121, 92, 255, 0.3);
  background:
    radial-gradient(circle at 88% 10%, rgba(255, 62, 97, 0.26), transparent 24rem),
    radial-gradient(circle at 12% 100%, rgba(121, 92, 255, 0.27), transparent 25rem),
    #151827;
}

.exam-banner-icon,
.exam-seal {
  border: 0;
  background: linear-gradient(145deg, var(--red), var(--violet));
  box-shadow: 0 15px 36px rgba(255, 62, 97, 0.22);
  color: white;
}

.exam-banner-copy h2 {
  font-size: 28px;
}

.button-light {
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
}

.lesson-sidebar {
  background:
    radial-gradient(circle at 0 20%, rgba(121, 92, 255, 0.12), transparent 18rem),
    rgba(11, 13, 23, 0.92);
}

.lesson-icon,
.checkpoint-badge {
  border: 0;
  background: linear-gradient(145deg, rgba(255, 62, 97, 0.2), rgba(121, 92, 255, 0.23));
}

.lesson-step.is-current span:first-child {
  border-color: transparent;
  background: linear-gradient(145deg, var(--red), var(--violet));
  box-shadow: 0 8px 18px rgba(255, 62, 97, 0.2);
}

.lesson-panel,
.question-card,
.candidate-card,
.result-hero {
  border-color: rgba(255, 255, 255, 0.11);
  background:
    radial-gradient(circle at 100% 0%, rgba(121, 92, 255, 0.1), transparent 25rem),
    linear-gradient(140deg, rgba(255, 255, 255, 0.035), transparent 55%),
    #121522;
}

.fact-card,
.checkpoint-option,
.answer-option {
  border-radius: 17px;
  background: rgba(255, 255, 255, 0.028);
}

.checkpoint-option.is-selected,
.answer-option.is-selected {
  border-color: rgba(121, 92, 255, 0.72);
  background: var(--violet-soft);
}

.answer-option.is-selected .option-letter {
  border-color: transparent;
  background: linear-gradient(145deg, var(--red), var(--violet));
}

.topic-chip {
  background: var(--violet-soft);
  color: #d7d1ff;
}

.input-wrap {
  border-radius: 17px;
}

.input-wrap:focus-within {
  border-color: rgba(121, 92, 255, 0.7);
  box-shadow: 0 0 0 4px rgba(121, 92, 255, 0.11);
}

.custom-check,
.icon-button {
  border-radius: 12px;
}

.honor-check input:checked + .custom-check {
  border-color: transparent;
  background: linear-gradient(145deg, var(--red), var(--violet));
}

.topic-result,
.mistake-card {
  border-radius: 19px;
  background: #121522;
}

@media (max-width: 850px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    font-size: clamp(48px, 10vw, 72px);
  }
}

@media (max-width: 590px) {
  .hero-grid {
    padding-top: 34px;
  }

  .eyebrow {
    margin-bottom: 18px;
  }

  .hero-copy h1 {
    font-size: clamp(42px, 13vw, 58px);
  }

  .hero-lead {
    font-size: 15px;
    line-height: 1.6;
  }

  .academy-card {
    width: 235px;
    height: 345px;
  }

  .mission-card {
    min-height: 210px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  @page { size: A4; margin: 12mm; }
  body { background: white; color: #111; }
  .topbar,
  .site-footer,
  .result-actions,
  .breakdown-section,
  .mistakes-section { display: none !important; }
  .view { display: none !important; }
  #view-result { display: block !important; }
  .result-shell { width: 100%; padding: 0; }
  .result-hero { border: 2px solid #222; background: white; color: #111; box-shadow: none; }
  .result-topline,
  .result-verdict > p,
  .result-meta span,
  .result-ring span { color: #444; }
  .result-ring::before { background: white; }
  .result-watermark { color: rgba(0, 0, 0, 0.035); }
}

/* ===== Академия v2: игровые механики и проверяемый экзамен ===== */

.dashboard-grid {
  grid-template-columns: minmax(0, 1.65fr) repeat(3, minmax(145px, 0.52fr));
}

.stat-icon.violet {
  color: #c4b5fd;
  background: rgba(124, 77, 255, 0.18);
}

.rank-stat-card strong {
  font-size: clamp(1.05rem, 1.7vw, 1.45rem);
}

.achievements-section {
  margin: 18px auto 0;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 26px;
  background:
    radial-gradient(circle at 92% 10%, rgba(124, 77, 255, 0.16), transparent 32%),
    rgba(15, 17, 30, 0.76);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.22);
}

.compact-heading {
  margin-bottom: 18px;
}

.achievement-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.achievement-card {
  display: flex;
  align-items: center;
  gap: 13px;
  min-height: 84px;
  padding: 15px;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.025);
  filter: saturate(0.2);
  opacity: 0.58;
  transition: 0.25s ease;
}

.achievement-card > span {
  display: grid;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.07);
  font-size: 1.25rem;
}

.achievement-card strong,
.achievement-card small {
  display: block;
}

.achievement-card strong {
  margin-bottom: 4px;
  color: var(--text);
  font-size: 0.92rem;
}

.achievement-card small {
  line-height: 1.35;
}

.achievement-card.is-unlocked {
  border-style: solid;
  border-color: rgba(255, 61, 85, 0.32);
  background: linear-gradient(135deg, rgba(255, 61, 85, 0.12), rgba(124, 77, 255, 0.08));
  filter: none;
  opacity: 1;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.08);
}

.achievement-card.is-unlocked > span {
  background: linear-gradient(135deg, rgba(255, 61, 85, 0.28), rgba(124, 77, 255, 0.25));
  box-shadow: 0 8px 25px rgba(255, 61, 85, 0.13);
}

.mission-card {
  --rx: 0deg;
  --ry: 0deg;
  --mx: 50%;
  --my: 50%;
  position: relative;
  overflow: hidden;
  transform: perspective(850px) rotateX(var(--rx)) rotateY(var(--ry));
  transform-style: preserve-3d;
  will-change: transform;
}

.mission-card:hover {
  transform: perspective(850px) rotateX(var(--rx)) rotateY(var(--ry)) translateY(-7px) scale(1.01);
}

.mission-card::after {
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background: radial-gradient(circle at var(--mx) var(--my), rgba(255, 255, 255, 0.15), transparent 34%);
  opacity: 0;
  pointer-events: none;
  content: '';
  transition: opacity 0.2s ease;
}

.mission-card:hover::after {
  opacity: 1;
}

.mission-card > * {
  position: relative;
  z-index: 1;
  transform: translateZ(10px);
}

.mission-completion-line {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 2;
  height: 4px;
  overflow: hidden;
  transform: none;
  background: rgba(255, 255, 255, 0.05);
}

.mission-completion-line span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #ff3d55, #7c4dff, #22d3ee);
  box-shadow: 0 0 18px rgba(255, 61, 85, 0.7);
}

.challenge-arena {
  margin-top: 26px;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  background:
    radial-gradient(circle at 90% 10%, rgba(124, 77, 255, 0.14), transparent 30%),
    rgba(7, 9, 18, 0.56);
}

.sequence-target {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.sequence-target span {
  display: grid;
  flex: 1;
  min-width: 38px;
  height: 46px;
  place-items: center;
  border: 1px dashed rgba(255, 255, 255, 0.19);
  border-radius: 14px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.035);
  font-weight: 900;
  font-size: 0.78rem;
  transition: 0.25s ease;
}

.sequence-target span.is-filled {
  border-style: solid;
  border-color: rgba(70, 212, 135, 0.5);
  color: #80eeb2;
  background: rgba(70, 212, 135, 0.12);
  box-shadow: 0 0 20px rgba(70, 212, 135, 0.12);
}

.sequence-choices {
  display: grid;
  gap: 10px;
}

.sequence-chip {
  width: 100%;
  padding: 15px 17px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.045);
  text-align: left;
  font: inherit;
  line-height: 1.45;
  cursor: pointer;
  transition: 0.2s ease;
}

.sequence-chip:hover:not(:disabled) {
  border-color: rgba(255, 61, 85, 0.45);
  background: rgba(255, 61, 85, 0.09);
  transform: translateX(4px);
}

.sequence-chip.is-placed {
  border-color: rgba(70, 212, 135, 0.35);
  color: #88eebb;
  background: rgba(70, 212, 135, 0.09);
  opacity: 0.7;
}

.sequence-chip.is-shaking {
  animation: challenge-shake 0.32s ease;
}

@keyframes challenge-shake {
  25% { transform: translateX(-6px); }
  50% { transform: translateX(6px); }
  75% { transform: translateX(-3px); }
}

.challenge-options {
  margin: 0;
}

.confetti-particle {
  position: fixed;
  top: 48%;
  left: 50%;
  z-index: 1000;
  width: 9px;
  height: 15px;
  border-radius: 2px;
  pointer-events: none;
  animation: confetti-burst 1.7s cubic-bezier(0.12, 0.7, 0.2, 1) var(--delay) forwards;
}

@keyframes confetti-burst {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
  8% { opacity: 1; }
  100% { opacity: 0; transform: translate(calc(-50% + var(--x)), 52vh) rotate(var(--r)) scale(1); }
}

#access-code-field[hidden] {
  display: none;
}

#access-code-field > label {
  display: block;
  margin-top: 18px;
}

.code-input-wrap input {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 800;
}

.button.is-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.button.is-loading::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  content: '';
  animation: loader-spin 0.7s linear infinite;
}

@keyframes loader-spin {
  to { transform: rotate(360deg); }
}

.exam-timer {
  display: inline-flex;
  min-width: 76px;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(70, 212, 135, 0.28);
  border-radius: 999px;
  color: #88eebb;
  background: rgba(70, 212, 135, 0.09);
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}

.exam-timer.is-low {
  border-color: rgba(255, 61, 85, 0.45);
  color: #ff8b99;
  background: rgba(255, 61, 85, 0.12);
  animation: timer-pulse 1s ease-in-out infinite;
}

@keyframes timer-pulse {
  50% { box-shadow: 0 0 0 6px rgba(255, 61, 85, 0.05); }
}

.exam-shell {
  position: relative;
}

.exam-watermark {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 5;
  max-width: calc(100vw - 48px);
  padding: 9px 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.34);
  background: rgba(5, 6, 12, 0.68);
  backdrop-filter: blur(10px);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  pointer-events: none;
}

.verification-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 190px;
  gap: 28px;
  align-items: center;
  margin-top: 24px;
  padding: clamp(22px, 4vw, 36px);
  border: 1px solid rgba(70, 212, 135, 0.25);
  border-radius: 26px;
  background:
    radial-gradient(circle at 88% 50%, rgba(70, 212, 135, 0.13), transparent 32%),
    linear-gradient(135deg, rgba(14, 25, 27, 0.92), rgba(16, 17, 31, 0.94));
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.25);
}

.verification-copy h2 {
  max-width: 760px;
  margin: 5px 0 10px;
  font-size: clamp(1.45rem, 3vw, 2.25rem);
}

.verification-copy > p:not(.section-kicker) {
  max-width: 760px;
  color: var(--muted);
  line-height: 1.65;
}

.verification-copy > a {
  display: inline-block;
  max-width: 100%;
  margin-top: 15px;
  overflow: hidden;
  color: #84eeb4;
  font-weight: 750;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.verification-card img {
  width: 190px;
  height: 190px;
  padding: 10px;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 14px 45px rgba(0, 0, 0, 0.3);
}

.integrity-status {
  display: inline-flex;
  margin-top: 18px;
  padding: 10px 13px;
  border: 1px solid rgba(70, 212, 135, 0.26);
  border-radius: 12px;
  color: #80eeb2;
  background: rgba(70, 212, 135, 0.08);
  font-size: 0.85rem;
  font-weight: 750;
}

.integrity-status.is-warning {
  border-color: rgba(255, 209, 102, 0.34);
  color: #ffd166;
  background: rgba(255, 209, 102, 0.09);
}

@media (max-width: 1100px) {
  .dashboard-grid {
    grid-template-columns: minmax(0, 1fr) repeat(3, minmax(130px, 0.38fr));
  }

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

@media (max-width: 820px) {
  .dashboard-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .verification-card {
    grid-template-columns: 1fr;
  }

  .verification-card img {
    width: 160px;
    height: 160px;
  }
}

@media (max-width: 600px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .achievement-grid {
    grid-template-columns: 1fr;
  }

  .achievements-section {
    padding: 20px;
  }

  .sequence-target {
    gap: 6px;
  }

  .sequence-target span {
    min-width: 28px;
    height: 38px;
    border-radius: 10px;
    font-size: 0.68rem;
  }

  .exam-header-right {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .exam-watermark {
    right: 12px;
    bottom: 12px;
    max-width: calc(100vw - 24px);
  }

  .verification-copy > a {
    white-space: normal;
    overflow-wrap: anywhere;
  }
}

@media (prefers-reduced-motion: reduce) {
  .confetti-particle { display: none; }
  .mission-card,
  .mission-card:hover { transform: none; }
}

/* ===== Адаптивность v2.1 ===== */

html,
body {
  max-width: 100%;
  overflow-x: clip;
}

.hero-copy,
.progress-copy,
.stat-card > div,
.achievement-card > div,
.mission-card,
.exam-banner-copy,
.exam-banner-status,
.lesson-content,
.lesson-panel,
.candidate-card,
.exam-header > div,
.exam-header-right,
.question-card,
.result-verdict,
.verification-copy,
.topic-result-copy,
.mistake-card > div {
  min-width: 0;
}

.achievement-card,
.stat-card,
.topic-result,
.mistake-card,
.fact-card,
.checkpoint-option,
.answer-option {
  overflow-wrap: anywhere;
}

.achievement-card {
  isolation: isolate;
}

.achievement-card.is-unlocked {
  transform: translateY(-1px);
}

@media (hover: hover) and (pointer: fine) {
  .achievement-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.045);
    filter: saturate(0.55);
    opacity: 0.78;
    transform: translateY(-3px);
  }

  .achievement-card.is-unlocked:hover {
    border-color: rgba(255, 61, 85, 0.5);
    background: linear-gradient(135deg, rgba(255, 61, 85, 0.17), rgba(124, 77, 255, 0.12));
    filter: none;
    opacity: 1;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2), inset 0 1px rgba(255, 255, 255, 0.09);
  }
}

@media (hover: none), (pointer: coarse) {
  .mission-card,
  .mission-card:hover,
  .mission-card:active {
    transform: none;
  }

  .mission-card:active,
  .checkpoint-option:active,
  .answer-option:active,
  .button:active {
    transform: scale(0.985);
  }
}

@media (max-width: 850px) {
  .achievements-section {
    width: min(100% - 32px, 720px);
  }

  .lesson-sidebar {
    overflow: hidden;
  }

  .lesson-content,
  .exam-intro-copy,
  .candidate-card {
    min-width: 0;
  }
}

@media (max-width: 590px) {
  .achievements-section {
    width: min(100% - 24px, 520px);
    padding: 20px;
  }

  .compact-heading {
    align-items: flex-start;
    gap: 10px;
  }

  .achievements-section .section-caption {
    display: block;
    flex: 0 0 auto;
    margin: 5px 0 0;
    white-space: nowrap;
  }

  .achievement-card {
    min-height: 76px;
    padding: 13px;
  }

  .lesson-topline {
    grid-template-columns: auto minmax(40px, 1fr) auto;
    gap: 10px;
  }

  .checkpoint-head {
    align-items: flex-start;
  }

  .checkpoint-head span {
    line-height: 1.4;
  }

  .exam-header-right {
    gap: 8px;
  }

  .exam-timer {
    min-width: 68px;
  }

  .topic-result {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 10px;
    padding: 13px;
  }

  .verification-card {
    justify-items: center;
    text-align: center;
  }

  .verification-copy > p:not(.section-kicker) {
    margin-inline: auto;
  }

  .integrity-status {
    max-width: 100%;
    justify-content: center;
    text-align: left;
  }
}

@media (max-width: 430px) {
  .topbar {
    min-height: 62px;
    padding-inline: 12px;
  }

  .brand {
    gap: 8px;
  }

  .brand-copy strong {
    display: block;
    max-width: 92px;
    font-size: 12px;
    line-height: 1.08;
  }

  .topbar-stats {
    gap: 6px;
  }

  .xp-pill {
    padding-inline: 9px;
  }

  .xp-pill > span:last-child {
    display: none;
  }

  .icon-button {
    width: 36px;
    height: 36px;
  }

  .sound-toggle {
    min-height: 36px;
    gap: 5px;
    padding: 3px 7px 3px 4px;
  }

  .sound-toggle-icon {
    width: 28px;
    height: 28px;
  }

  .sound-toggle-copy small {
    display: none;
  }

  .hero-copy h1 {
    font-size: clamp(39px, 12.5vw, 52px);
  }

  .hero-visual {
    min-height: 405px;
  }

  .academy-card {
    width: 215px;
    height: 325px;
  }

  .radar-one {
    width: 280px;
    height: 280px;
  }

  .radar-two {
    width: 350px;
    height: 350px;
  }

  .floating-chip {
    padding: 8px 10px;
  }

  .section-heading,
  .compact-heading {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .section-heading .text-button {
    align-self: flex-start;
  }

  .achievements-section .section-caption {
    margin-top: 0;
  }

  .stat-card {
    min-height: 124px;
  }

  .lesson-sidebar {
    padding-block: 18px;
  }

  .lesson-identity {
    margin-top: 20px;
  }

  .step-list {
    gap: 10px;
    margin-top: 16px;
  }

  .lesson-panel {
    min-height: 500px;
    padding: 24px 16px;
  }

  .lesson-panel h1 {
    font-size: clamp(30px, 9.5vw, 36px);
  }

  .lesson-controls {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  }

  .candidate-card-head {
    gap: 12px;
    font-size: 8px;
  }

  .exam-intro-copy h1 {
    font-size: clamp(42px, 13vw, 49px);
  }

  .exam-rules {
    margin-block: 20px;
  }

  .exam-rules strong {
    font-size: 18px;
  }

  .exam-header {
    gap: 10px;
  }

  .question-card {
    min-height: 540px;
    padding-inline: 16px;
  }

  .question-card h1 {
    font-size: clamp(25px, 8vw, 30px);
  }

  .checkpoint-option,
  .answer-option {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
    padding: 12px;
  }

  .checkpoint-option .option-letter,
  .answer-option .option-letter {
    width: 32px;
    height: 32px;
  }

  .result-verdict h1 {
    font-size: clamp(32px, 10vw, 38px);
  }

  .result-meta span {
    flex: 1 1 auto;
  }

  .mistake-card {
    padding: 16px;
  }

  .toast {
    right: 12px;
    bottom: 12px;
    max-width: calc(100vw - 24px);
  }
}