:root {
  --ink: #203e39;
  --muted: #6e7c76;
  --green: #12564b;
  --lime: #d9ee8e;
  --paper: #f7f7f0;
  --line: #e4e7dd;
  --white: #fff;
  --orange: #f3b991;
  --radius: 22px;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
button,
input,
select {
  font: inherit;
}
button,
a,
input,
select {
  touch-action: manipulation;
}
button {
  cursor: pointer;
}
button:disabled {
  opacity: 0.5;
  cursor: wait;
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid #d28a2d;
  outline-offset: 4px;
}
a {
  color: var(--green);
}
button {
  border: 0;
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
h1 {
  font-size: clamp(29px, 3vw, 42px);
  letter-spacing: -1.5px;
  line-height: 1.15;
  margin-bottom: 13px;
}
h2 {
  font-size: 22px;
  letter-spacing: -0.5px;
}
h3 {
  font-size: 19px;
  letter-spacing: -0.3px;
}
p {
  line-height: 1.6;
}
svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.shell {
  display: grid;
  grid-template-columns: 244px 1fr;
  min-height: 100vh;
}
.sidebar {
  padding: 36px 23px;
  background: #fff;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 0 auto 0 0;
  width: 244px;
  z-index: 5;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--green);
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 40px;
  border-radius: 13px;
  background: var(--green);
  color: var(--lime);
  transform: rotate(-7deg);
}
.brand-mark svg {
  width: 25px;
  height: 25px;
}
.brand small {
  font-size: 10px;
  letter-spacing: 1.5px;
  font-weight: 600;
  display: block;
  margin-top: 3px;
  color: var(--muted);
}
nav {
  display: grid;
  gap: 9px;
  margin-top: 54px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 13px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  padding: 14px 16px;
  border-radius: 13px;
  font-weight: 600;
  font-size: 14px;
}
.nav-item.active {
  background: #eaf2e8;
  color: var(--green);
}
.nav-item:hover {
  background: #f2f5ed;
}
.sidebar-note {
  margin-top: auto;
  padding: 21px 17px;
  border-radius: 17px;
  background: #f6f7ee;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}
.sidebar-note strong {
  display: block;
  color: var(--ink);
  font-size: 14px;
  margin: 9px 0 5px;
}
.account {
  margin-top: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #efe1d2;
  color: #764d33;
  font-weight: 750;
  font-size: 15px;
}
.account strong {
  font-size: 13px;
}
.account small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  margin-top: 2px;
}
.icon-button {
  padding: 8px;
  background: transparent;
  color: var(--muted);
  border-radius: 9px;
  margin-left: auto;
  display: grid;
  place-items: center;
}
.workspace {
  grid-column: 2;
  min-width: 0;
}
.topbar {
  height: 87px;
  padding: 0 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  gap: 15px;
  background: var(--paper);
}
.breadcrumb {
  font-size: 13px;
  color: var(--muted);
}
.top-right {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
}
.xp {
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 700;
}
.xp svg {
  color: #bc8d21;
  width: 18px;
}
.demo-switch {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--green);
}
main {
  max-width: 1320px;
  margin: auto;
  padding: 40px 48px 50px;
}
.eyebrow {
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 1.7px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}
.intro {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 27px;
  gap: 20px;
}
.intro p {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}
.date-pill {
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 30px;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}
.hero {
  border-radius: var(--radius);
  padding: 34px 35px;
  background: var(--green);
  color: #fff;
  display: grid;
  grid-template-columns: 1fr 230px;
  overflow: hidden;
  position: relative;
  min-height: 245px;
  margin-bottom: 26px;
}
.hero .eyebrow {
  color: #c5dcb6;
  font-size: 10px;
}
.hero h2 {
  font-size: 31px;
  letter-spacing: -1px;
  max-width: 430px;
  margin-bottom: 13px;
  line-height: 1.15;
}
.hero p {
  color: #d3e1d9;
  font-size: 14px;
  max-width: 390px;
  margin-bottom: 23px;
}
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 9px;
  padding: 13px 19px;
  border-radius: 11px;
  font-size: 14px;
  font-weight: 700;
  background: var(--green);
  color: #fff;
  text-decoration: none;
  line-height: 1.35;
}
.btn svg {
  width: 18px;
  height: 18px;
}
.btn.lime {
  background: var(--lime);
  color: #23442c;
}
.btn.light {
  background: white;
  color: var(--green);
  border: 1px solid var(--line);
}
.btn.quiet {
  background: transparent;
  color: var(--muted);
  font-weight: 500;
}
.btn.small {
  padding: 9px 13px;
  font-size: 12px;
}
.hero-art {
  position: relative;
  display: grid;
  place-items: center;
}
.orbit {
  position: absolute;
  width: 230px;
  height: 230px;
  border: 1px solid #ffffff30;
  border-radius: 50%;
  transform: rotate(-25deg) scaleY(0.68);
}
.orbit.second {
  transform: rotate(38deg) scaleY(0.68);
}
.planet {
  width: 125px;
  height: 125px;
  background: #d9ee8e;
  border-radius: 34px;
  display: grid;
  place-items: center;
  transform: rotate(-12deg);
  box-shadow: 12px 13px 0 #082e2845;
  color: var(--green);
}
.planet svg {
  width: 70px;
  height: 70px;
  stroke-width: 1.2;
}
.spark {
  position: absolute;
  color: #dfebac;
  font-size: 30px;
  right: 0;
  top: 12px;
}
.spark.two {
  left: 3px;
  top: auto;
  bottom: 25px;
  font-size: 20px;
}
.float-badge {
  position: absolute;
  right: -2px;
  bottom: 21px;
  transform: rotate(5deg);
  background: #fff;
  color: var(--green);
  border-radius: 12px;
  padding: 11px;
  font-size: 11px;
  font-weight: 650;
  box-shadow: 0 6px 12px #102e2320;
}
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 37px;
}
.stat {
  border: 1px solid var(--line);
  background: #fff;
  padding: 19px 20px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.stat-icon {
  border-radius: 12px;
  background: #eff3e5;
  padding: 11px;
  display: grid;
  place-items: center;
  color: var(--green);
}
.stat:nth-child(2) .stat-icon {
  background: #f9efde;
  color: #a8782c;
}
.stat:nth-child(3) .stat-icon {
  background: #eeecf7;
  color: #7873a4;
}
.stat strong {
  font-size: 25px;
  letter-spacing: -0.6px;
  display: block;
  line-height: 1.2;
}
.stat span {
  font-size: 11px;
  color: var(--muted);
}
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  margin-bottom: 19px;
}
.section-heading h2 {
  margin: 0;
}
.section-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}
.subject-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 19px;
}
.subject-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 19px;
  padding: 23px;
  display: flex;
  flex-direction: column;
  transition:
    transform 0.15s,
    box-shadow 0.15s;
}
.subject-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px #203e3908;
}
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
}
.subject-icon {
  width: 45px;
  height: 45px;
  background: #f7e7d6;
  color: #b4743e;
  border-radius: 13px;
  display: grid;
  place-items: center;
}
.subject-icon.physics {
  background: #e6eef7;
  color: #617fa4;
}
.subject-icon.latin {
  background: #ede9f5;
  color: #8771aa;
}
.tag {
  font-size: 10px;
  border-radius: 6px;
  background: #f3f4ee;
  padding: 5px 8px;
  color: var(--muted);
}
.subject-card .eyebrow {
  font-size: 9px;
  margin-bottom: 8px;
  color: var(--muted);
}
.subject-card h3 {
  margin-bottom: 6px;
}
.subject-card p {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 23px;
  flex: 1;
}
.progress-label {
  font-size: 10px;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  margin-bottom: 9px;
}
.progress-track {
  height: 5px;
  border-radius: 10px;
  background: #edf0e7;
  overflow: hidden;
  display: flex;
  margin-bottom: 19px;
}
.progress-track i {
  height: 100%;
  background: #67998a;
  display: block;
}
.progress-track i.practice {
  background: #d4e3b9;
}
.subject-card .btn {
  width: 100%;
}
.card-actions {
  display: flex;
  gap: 7px;
}
.card-actions .test-btn {
  background: #f4f5f0;
  color: var(--green);
  padding: 11px;
  border-radius: 10px;
  font-size: 11px;
}
.encouragement {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 21px 0 0;
  color: var(--muted);
  font-size: 12px;
}
.encouragement svg {
  color: #a49060;
  width: 19px;
}
.footer-note {
  margin-top: 30px;
  font-size: 11px;
  color: var(--muted);
  text-align: center;
}
.demo-banner {
  display: flex;
  gap: 8px;
  justify-content: center;
  padding: 8px 12px;
  background: #f1e9d3;
  font-size: 11px;
  color: #756441;
}
.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 25px;
}
.filter {
  padding: 9px 15px;
  border-radius: 30px;
  background: #fff;
  color: var(--muted);
  border: 1px solid var(--line);
  font-size: 12px;
}
.filter.active {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}
.badge-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.badge-card {
  padding: 27px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  display: flex;
  gap: 20px;
  align-items: center;
}
.badge-card.locked {
  background: #f1f2ec;
  color: #7d8983;
}
.badge-card .medal {
  width: 58px;
  height: 58px;
  background: #f9eed0;
  color: #b68b28;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.badge-card.locked .medal {
  background: #e3e7df;
  color: #9aa69a;
}
.badge-card h3 {
  margin-bottom: 5px;
  font-size: 16px;
}
.badge-card p {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 5px;
}
.badge-card small {
  font-size: 10px;
}
.panel {
  background: #fff;
  padding: 27px;
  border: 1px solid var(--line);
  border-radius: 19px;
  margin-bottom: 23px;
}
.panel p {
  font-size: 13px;
  color: var(--muted);
}
.parent-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 23px;
}
.dropzone {
  border: 2px dashed #c9d7c7;
  border-radius: 15px;
  background: #f7faf2;
  padding: 30px 20px;
  text-align: center;
  display: block;
  cursor: pointer;
}
.dropzone svg {
  width: 32px;
  height: 32px;
  color: var(--green);
  margin-bottom: 12px;
}
.dropzone strong {
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
}
.dropzone span {
  font-size: 11px;
  color: var(--muted);
}
input[type="file"] {
  max-width: 100%;
  font-size: 12px;
  margin-top: 18px;
}
.preview {
  border-top: 1px solid var(--line);
  margin-top: 20px;
  padding-top: 20px;
}
.preview ul {
  padding-left: 19px;
  font-size: 13px;
  line-height: 1.7;
  max-height: 230px;
  overflow: auto;
}
.form-field {
  display: block;
  font-size: 13px;
  font-weight: 650;
  margin-bottom: 16px;
}
.form-field input,
.form-field select {
  margin-top: 8px;
  width: 100%;
  background: #fff;
  border: 1px solid #d6ddd1;
  border-radius: 10px;
  padding: 13px;
  color: var(--ink);
}
.child-row {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}
.child-row h3 {
  margin-bottom: 9px;
}
.child-row p {
  margin-bottom: 12px;
  font-size: 12px;
}
.inline {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.help {
  padding: 18px;
  background: #f2f5e9;
  border-radius: 12px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}
.link-box {
  word-break: break-all;
  background: #f3f5ef;
  padding: 15px;
  font-size: 12px;
  border-radius: 12px;
  margin-top: 15px;
}
.quiz {
  max-width: 770px;
  margin: 0 auto;
}
.quiz-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  margin-bottom: 19px;
  font-size: 12px;
  color: var(--muted);
}
.quiz-progress {
  height: 7px;
  background: #e4e8dc;
  border-radius: 20px;
  margin-bottom: 32px;
  overflow: hidden;
  display: flex;
}
.quiz-progress i {
  background: var(--green);
  display: block;
  height: 100%;
  transition: width 0.3s;
}
.question-card {
  padding: 40px;
  background: #fff;
  border-radius: 24px;
  border: 1px solid var(--line);
}
.question-card .eyebrow {
  font-size: 10px;
  color: #799173;
}
.question-card h2 {
  font-size: 27px;
  line-height: 1.4;
  margin: 19px 0 27px;
  letter-spacing: -0.5px;
}
.answer-input {
  border: 2px solid #dce3d7;
  border-radius: 12px;
  background: #fbfcf8;
  padding: 16px 18px;
  font-size: 20px;
  color: var(--ink);
  width: 100%;
  min-width: 0;
}
.input-wrap {
  display: flex;
  gap: 13px;
  align-items: center;
}
.input-wrap span {
  font-weight: 650;
  white-space: nowrap;
}
.choices {
  display: grid;
  gap: 11px;
}
.choice {
  background: #fafbf7;
  border: 2px solid #e6eade;
  padding: 15px;
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  border-radius: 12px;
  color: var(--ink);
  font-size: 15px;
}
.choice.selected {
  border-color: var(--green);
  background: #eff5e8;
}
.choice span {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border: 1px solid #d7dfd0;
  border-radius: 8px;
  font-size: 12px;
  flex-shrink: 0;
}
.quiz-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 28px;
  gap: 15px;
}
.quiz-actions small {
  font-size: 11px;
  color: var(--muted);
}
.feedback {
  margin-top: 22px;
  padding: 20px;
  background: #f8eedf;
  border-radius: 13px;
  font-size: 14px;
  line-height: 1.6;
}
.feedback.success {
  background: #eaf3dd;
}
.feedback strong {
  display: block;
  margin-bottom: 5px;
}
.feedback p {
  margin: 0;
  font-size: 13px;
}
.quiz-note {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  margin-top: 23px;
}
.result {
  text-align: center;
  max-width: 720px;
  margin: auto;
}
.result-icon {
  width: 86px;
  height: 86px;
  display: grid;
  place-items: center;
  border-radius: 26px;
  background: var(--lime);
  margin: 0 auto 24px;
  transform: rotate(-6deg);
  color: var(--green);
}
.result-icon svg {
  width: 45px;
  height: 45px;
}
.result h1 {
  font-size: 36px;
}
.result .stats {
  margin: 29px 0;
}
.result .stat {
  display: block;
  text-align: center;
}
.review {
  text-align: left;
}
.review details {
  padding: 16px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
}
.review summary {
  cursor: pointer;
  line-height: 1.6;
  font-weight: 600;
}
.review details p {
  margin: 12px 0 0;
}
.auth-wrap {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.auth-art {
  background: var(--green);
  padding: 60px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #fff;
}
.auth-art .brand {
  color: #fff;
}
.auth-art h1 {
  font-size: 56px;
  max-width: 450px;
  margin-top: 80px;
}
.auth-art p {
  color: #d1dfd5;
  max-width: 390px;
  font-size: 16px;
}
.auth-form {
  padding: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.auth-form > div {
  width: 100%;
  max-width: 380px;
}
.auth-form h2 {
  font-size: 30px;
}
.auth-form p {
  color: var(--muted);
  font-size: 14px;
}
.auth-form .btn {
  width: 100%;
  margin: 7px 0;
}
.mobile-brand {
  display: none;
}
.empty {
  padding: 40px;
  text-align: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  color: var(--muted);
  line-height: 1.7;
}
.loading {
  padding: 100px;
  text-align: center;
  color: var(--muted);
}
#toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 14px 22px;
  background: #203e39;
  color: #fff;
  border-radius: 12px;
  z-index: 20;
  font-size: 13px;
  max-width: 90vw;
  box-shadow: 0 6px 25px #0002;
  display: none;
}
#toast.show {
  display: block;
}
.error-text {
  color: #a3422b;
  font-size: 13px;
  line-height: 1.6;
  margin-top: 13px;
}
.tools {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.tools a {
  font-size: 12px;
}
.space-top {
  margin-top: 22px;
}
.review-list {
  max-height: 300px;
  overflow: auto;
}
.file-preview-item {
  border-top: 1px solid var(--line);
  padding: 10px 0;
}
.file-preview-item small {
  color: var(--muted);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
@media (min-width: 1500px) {
  main {
    padding-top: 48px;
  }
  .hero {
    min-height: 270px;
    grid-template-columns: 1fr 300px;
  }
  .hero-art {
    max-width: 260px;
  }
}
@media (max-width: 1100px) {
  .sidebar {
    width: 205px;
    padding: 28px 16px;
  }
  .shell {
    grid-template-columns: 205px 1fr;
  }
  main {
    padding: 30px 28px;
  }
  .topbar {
    padding: 0 28px;
  }
  .hero {
    grid-template-columns: 1fr 160px;
    padding: 28px;
  }
  .hero-art .orbit {
    width: 180px;
  }
  .planet {
    width: 105px;
    height: 105px;
  }
  .float-badge {
    font-size: 9px;
    right: -10px;
  }
  .subject-grid {
    gap: 12px;
  }
  .subject-card {
    padding: 18px;
  }
  .stat {
    padding: 15px;
    gap: 10px;
  }
  .stat-icon {
    padding: 8px;
  }
  .date-pill {
    display: none;
  }
  .parent-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 800px) {
  .shell {
    display: block;
  }
  .sidebar {
    position: sticky;
    top: 0;
    width: 100%;
    height: auto;
    padding: 12px 18px;
    display: flex;
    flex-direction: row;
    align-items: center;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    gap: 15px;
  }
  .brand {
    font-size: 21px;
  }
  .brand small {
    display: none;
  }
  .brand-mark {
    width: 31px;
    height: 33px;
  }
  .brand-mark svg {
    width: 21px;
  }
  .sidebar nav {
    display: flex;
    margin: 0 0 0 auto;
    gap: 2px;
  }
  .nav-item {
    padding: 10px;
    gap: 6px;
    font-size: 11px;
  }
  .nav-item svg {
    width: 18px;
    height: 18px;
  }
  .sidebar-note,
  .account {
    display: none;
  }
  .topbar {
    height: 53px;
    padding: 0 20px;
  }
  .breadcrumb {
    font-size: 11px;
  }
  .top-right {
    gap: 9px;
  }
  .demo-switch {
    font-size: 10px;
    padding: 6px 8px;
  }
  main {
    padding: 28px 20px;
  }
  .hero {
    grid-template-columns: 1fr 150px;
  }
  .subject-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats {
    gap: 10px;
    margin-bottom: 27px;
  }
  .stat {
    display: block;
  }
  .stat-icon {
    display: none;
  }
  .stat strong {
    font-size: 23px;
  }
  .stat span {
    font-size: 10px;
  }
  .auth-art {
    padding: 35px;
  }
  .auth-art h1 {
    font-size: 40px;
  }
  .auth-form {
    padding: 30px;
  }
}
@media (max-width: 540px) {
  .nav-item {
    font-size: 0;
    padding: 10px;
  }
  .nav-item svg {
    width: 20px;
    height: 20px;
  }
  .brand {
    font-size: 22px;
  }
  .hero {
    grid-template-columns: 1fr;
    padding: 27px;
    min-height: 240px;
  }
  .hero h2 {
    font-size: 29px;
    max-width: 260px;
  }
  .hero p {
    max-width: 230px;
  }
  .hero-art {
    display: none;
  }
  .hero .btn {
    font-size: 13px;
  }
  .subject-grid {
    grid-template-columns: 1fr;
  }
  .subject-card {
    padding: 23px;
  }
  .subject-card p {
    margin-bottom: 17px;
  }
  .card-top {
    margin-bottom: 15px;
  }
  .stat {
    padding: 15px 10px;
  }
  .stat strong {
    font-size: 22px;
  }
  .stat span {
    font-size: 9px;
  }
  .badge-grid {
    grid-template-columns: 1fr;
  }
  .question-card {
    padding: 25px 20px;
  }
  .question-card h2 {
    font-size: 22px;
  }
  .quiz-actions {
    align-items: flex-end;
  }
  .quiz-actions small {
    max-width: 110px;
    line-height: 1.6;
  }
  .quiz-actions .btn {
    padding: 12px 15px;
    font-size: 12px;
  }
  .intro {
    margin-bottom: 22px;
  }
  .intro p {
    font-size: 13px;
  }
  h1 {
    font-size: 32px;
  }
  .panel {
    padding: 21px;
  }
  .auth-wrap {
    display: block;
  }
  .auth-art {
    padding: 25px;
  }
  .auth-art h1 {
    font-size: 34px;
    margin-top: 35px;
    margin-bottom: 17px;
  }
  .auth-art p {
    font-size: 13px;
    margin-bottom: 0;
  }
  .auth-art > small {
    display: none;
  }
  .auth-form {
    padding: 35px 25px;
  }
  .result h1 {
    font-size: 29px;
  }
  .section-heading h2 {
    font-size: 21px;
  }
  .section-heading p {
    font-size: 10px;
  }
  .footer-note {
    line-height: 1.8;
  }
  .demo-banner {
    font-size: 10px;
  }
  .topbar .breadcrumb {
    max-width: 130px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    scroll-behavior: auto !important;
  }
}