*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI",
    system-ui, sans-serif;
  background: radial-gradient(circle at 0 0, #020617, #020617 40%, #020617);
  color: #e5e7eb;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

.q-root {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
}

.q-shell {
  display: contents;
}

.q-sidebar {
  background: radial-gradient(circle at 0 0, #1d2238, #020617 65%);
  border-right: 1px solid rgba(15, 23, 42, 1);
  padding: 14px 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.q-logo {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.q-logo__mark {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  color: #f97316;
}

.q-logo__caption {
  font-size: 0.76rem;
  color: #9ca3af;
}

.q-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.86rem;
}

.q-nav__link {
  text-decoration: none;
  padding: 6px 8px;
  border-radius: 7px;
  color: #9ca3af;
}

.q-nav__link:hover {
  background: rgba(15, 23, 42, 0.9);
  color: #e5e7eb;
}

.q-nav__link--active {
  background: linear-gradient(90deg, #f97316, #22c55e);
  color: #020617;
}

.q-sidebar__note {
  margin-top: auto;
  font-size: 0.74rem;
  color: #6b7280;
}

.q-main {
  background:
    radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.16), transparent 55%),
    radial-gradient(circle at 100% 0, rgba(249, 115, 22, 0.18), transparent 55%),
    #020617;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.q-main__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 20px 22px;
}

.q-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.15fr);
  gap: 22px;
  align-items: start;
  margin-bottom: 22px;
}

.q-hero__eyebrow {
  font-size: 0.76rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: #38bdf8;
  margin-bottom: 6px;
}

.q-hero__title {
  margin: 0 0 10px;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  line-height: 1.35;
}

.q-hero__lead {
  margin: 0 0 8px;
  font-size: 0.94rem;
  color: #cbd5f5;
  line-height: 1.9;
}

.q-hero__lead strong {
  color: #facc15;
}

.q-hero__note {
  font-size: 0.86rem;
  color: #9ca3af;
}

.q-hero__visual {
  background: rgba(15, 23, 42, 0.92);
  border-radius: 12px;
  border: 1px solid rgba(30, 64, 175, 0.9);
  padding: 10px 10px 12px;
  display: grid;
  gap: 10px;
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.9);
}

.q-hero__img {
  border-radius: 10px;
  border: 1px solid rgba(37, 99, 235, 0.8);
}

.q-hero__caption {
  margin: 0;
  font-size: 0.8rem;
  color: #9ca3af;
  line-height: 1.7;
}

.q-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.q-pill {
  border-radius: 999px;
  border: 1px solid rgba(55, 65, 81, 0.9);
  padding: 6px 8px;
  font-size: 0.76rem;
  text-align: center;
  background: radial-gradient(circle at 0 0, #111827, #020617);
}

.q-pill span {
  display: block;
}

.q-pill__label {
  color: #9ca3af;
  font-size: 0.7rem;
}

.q-pill__value {
  color: #e5e7eb;
}

.q-section {
  padding: 20px 0 24px;
}

.q-section__head {
  margin-bottom: 16px;
}

.q-section__title {
  margin: 0 0 6px;
  font-size: 1.18rem;
}

.q-section__subtitle {
  margin: 0;
  font-size: 0.88rem;
  color: #9ca3af;
  max-width: 720px;
  line-height: 1.8;
}

.q-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.q-card {
  background: rgba(15, 23, 42, 0.98);
  border-radius: 10px;
  border: 1px solid rgba(31, 41, 55, 1);
  padding: 10px 10px 12px;
}

.q-card__title {
  margin: 0 0 6px;
  font-size: 0.96rem;
  color: #e5e7eb;
}

.q-card__title a {
  text-decoration: none;
  color: inherit;
}

.q-card__title a:hover {
  color: #38bdf8;
}

.q-card__text {
  margin: 0;
  font-size: 0.84rem;
  color: #9ca3af;
  line-height: 1.8;
}

.q-footer {
  border-top: 1px solid rgba(15, 23, 42, 1);
  background: #020617;
}

.q-footer__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 10px 20px 14px;
  font-size: 0.78rem;
  color: #6b7280;
}

.q-footer__line + .q-footer__line {
  margin-top: 4px;
}

/* sub pages */

.q-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
}

.q-page-main {
  background: radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.16), #020617);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.q-page-main__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 20px 26px;
}

.q-page-hero {
  margin-bottom: 16px;
}

.q-page-hero__title {
  margin: 0 0 6px;
  font-size: 1.18rem;
}

.q-page-hero__subtitle {
  margin: 0;
  font-size: 0.88rem;
  color: #9ca3af;
  max-width: 760px;
  line-height: 1.8;
}

.q-page-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.q-article {
  max-width: 820px;
}

.q-article__img {
  border-radius: 10px;
  border: 1px solid rgba(37, 99, 235, 0.8);
  margin-bottom: 12px;
}

.q-article__p {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: #d1d5db;
  line-height: 1.9;
}

.q-article__p strong {
  color: #f97316;
}

.q-back-home {
  margin-top: 16px;
  font-size: 0.8rem;
}

.q-back-home a {
  color: #38bdf8;
  text-decoration: none;
}

.q-back-home a:hover {
  text-decoration: underline;
}

@media (max-width: 960px) {
  .q-root,
  .q-page {
    grid-template-columns: minmax(0, 1fr);
  }

  .q-sidebar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .q-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }

  .q-sidebar__note {
    display: none;
  }

  .q-hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .q-hero__facts {
    grid-template-columns: minmax(0, 1fr);
  }

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

@media (max-width: 640px) {
  .q-main__inner,
  .q-page-main__inner {
    padding-inline: 14px;
  }

  .q-grid,
  .q-page-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}