.materials-page {
  min-height: 100vh;
  background: var(--canvas);
}

.materials-header .header-capsule {
  background: rgba(255, 255, 255, .96);
}

.materials-main {
  padding: 28px 0 72px;
}

.materials-shell {
  padding: clamp(24px, 3.6vw, 52px);
  border: 1px solid #07020a;
  border-radius: 24px;
  background: var(--ink);
  box-shadow: 0 8px 0 #07020a;
  color: var(--surface);
}

.materials-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
  align-items: end;
  gap: 42px;
}

.materials-intro .section-label {
  border-color: rgba(255, 255, 255, .42);
  background: rgba(255, 255, 255, .1);
  color: var(--surface);
}

.materials-intro h1 {
  max-width: 780px;
  margin-top: 20px;
  color: var(--surface);
  font-family: var(--display);
  font-size: clamp(4rem, 8vw, 7.5rem);
  font-weight: 620;
  letter-spacing: -.03em;
  line-height: .84;
  text-transform: uppercase;
}

.materials-intro h1 span {
  color: var(--lime);
}

.materials-intro > div > p {
  max-width: 720px;
  margin-top: 24px;
  color: rgba(255, 255, 255, .7);
  font-size: clamp(.94rem, 1.15vw, 1.08rem);
  line-height: 1.6;
}

.materials-status {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: start;
  gap: 14px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 16px;
  background: #2b2230;
}

.materials-status > i {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid #07020a;
  border-radius: 14px;
  background: var(--yellow);
  color: var(--ink);
  font-size: 1.25rem;
}

.materials-status p {
  color: rgba(255, 255, 255, .68);
  font-size: .72rem;
  line-height: 1.55;
}

.materials-status strong {
  display: block;
  margin-bottom: 5px;
  color: var(--surface);
  font-size: .78rem;
  letter-spacing: .03em;
  text-transform: uppercase;
}

.materials-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 36px;
}

.material-tab {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  background: rgba(255, 255, 255, .1);
  color: rgba(255, 255, 255, .84);
  font-size: .72rem;
  font-weight: 750;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.material-tab:hover,
.material-tab:focus-visible {
  outline: 0;
  border-color: var(--lime);
  color: var(--surface);
  transform: translateY(-2px);
}

.material-tab.is-active {
  border-color: #07020a;
  background: #9edcff;
  color: var(--ink);
  box-shadow: 0 3px 0 #07020a;
}

.material-tab i {
  font-size: .9rem;
}

.materials-documents {
  margin-top: 18px;
}

.material-document {
  scroll-margin-top: 112px;
  padding: clamp(20px, 2.4vw, 30px);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 18px;
  background: #1d1a22;
}

.material-document[hidden] {
  display: none;
}

.material-document-head {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  align-items: start;
  gap: 18px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.material-document-icon {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid #07020a;
  border-radius: 14px;
  color: var(--ink);
  font-size: 1.4rem;
}

.material-document-icon.icon-blue { background: #9edcff; }
.material-document-icon.icon-lime { background: var(--lime); }
.material-document-icon.icon-yellow { background: var(--yellow); }
.material-document-icon.icon-pink { background: var(--pink); color: var(--surface); }
.material-document-icon.icon-violet { background: #b597ff; }
.material-document-icon.icon-orange { background: #ff8a32; }

.material-document-head > div:nth-child(2) > span {
  color: var(--pink);
  font-size: .63rem;
  font-weight: 850;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.material-document h2 {
  margin-top: 7px;
  color: var(--surface);
  font-family: var(--body);
  font-size: clamp(1.65rem, 2.6vw, 2.5rem);
  font-weight: 760;
  letter-spacing: -.025em;
  line-height: 1.08;
}

.material-document-head > div:nth-child(2) > p {
  max-width: 760px;
  margin-top: 10px;
  color: rgba(255, 255, 255, .62);
  font-size: .83rem;
  line-height: 1.55;
}

.material-meta {
  display: grid;
  justify-items: end;
  gap: 7px;
}

.material-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 10px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 999px;
  background: rgba(255, 255, 255, .06);
  color: rgba(255, 255, 255, .62);
  font-size: .61rem;
  font-weight: 700;
  white-space: nowrap;
}

.material-accordion {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.material-accordion details {
  border: 1px solid rgba(158, 220, 255, .13);
  border-radius: 12px;
  background: #282332;
  overflow: hidden;
}

.material-accordion details[open] {
  border-color: rgba(158, 220, 255, .26);
  background: #24202d;
}

.material-accordion summary {
  min-height: 58px;
  padding: 17px 18px;
  color: var(--surface);
  cursor: pointer;
  font-size: .82rem;
  font-weight: 800;
  line-height: 1.35;
}

.material-accordion summary::marker {
  color: #9edcff;
}

.material-accordion summary span {
  display: inline-grid;
  min-width: 28px;
  margin-right: 8px;
  place-items: center;
  color: #9edcff;
  font-size: .66rem;
  letter-spacing: .05em;
}

.material-accordion details > div {
  padding: 0 20px 20px 46px;
  color: rgba(255, 255, 255, .7);
  font-size: .78rem;
  line-height: 1.65;
}

.material-accordion details > div p + p,
.material-accordion details > div p + ul,
.material-accordion details > div ul + p {
  margin-top: 12px;
}

.material-accordion ul {
  display: grid;
  gap: 6px;
  margin: 0;
  padding-left: 19px;
}

.material-accordion a {
  color: #9edcff;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.materials-footer {
  padding: 32px 0;
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.materials-footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}

.materials-footer img {
  width: 72px;
  height: 72px;
  object-fit: contain;
}

.materials-footer p,
.materials-footer span,
.materials-footer a {
  color: var(--muted);
  font-size: .68rem;
  font-weight: 650;
}

.materials-footer-inner > div {
  display: grid;
  justify-items: end;
  gap: 5px;
}

.materials-footer-inner > div a {
  color: var(--ink);
}

@media (max-width: 980px) {
  .materials-intro {
    grid-template-columns: minmax(0, 1fr);
  }

  .materials-status {
    max-width: 680px;
  }

  .material-document-head {
    grid-template-columns: 58px minmax(0, 1fr);
  }

  .material-meta {
    grid-column: 2;
    justify-items: start;
    grid-template-columns: repeat(2, auto);
  }
}

@media (max-width: 680px) {
  .materials-main {
    padding: 18px 12px 52px;
  }

  .materials-shell {
    width: 100%;
    padding: 22px 16px;
    border-radius: 20px;
  }

  .materials-intro h1 {
    margin-top: 16px;
    font-size: clamp(3rem, 16vw, 4.4rem);
  }

  .materials-tabs {
    flex-wrap: nowrap;
    margin-inline: -16px;
    padding: 0 16px 7px;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
  }

  .materials-tabs::-webkit-scrollbar {
    display: none;
  }

  .material-tab {
    flex: 0 0 auto;
  }

  .material-document {
    scroll-margin-top: 92px;
    padding: 18px 14px;
  }

  .material-document-head {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 13px;
  }

  .material-document-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    font-size: 1.15rem;
  }

  .material-document h2 {
    font-size: 1.55rem;
  }

  .material-meta {
    grid-column: 1 / -1;
    grid-template-columns: minmax(0, 1fr);
    justify-items: stretch;
  }

  .material-meta span {
    width: fit-content;
    white-space: normal;
  }

  .material-accordion summary {
    padding: 15px 13px;
    font-size: .77rem;
  }

  .material-accordion details > div {
    padding: 0 15px 17px;
    font-size: .74rem;
  }

  .materials-footer-inner {
    grid-template-columns: auto 1fr;
  }

  .materials-footer-inner > div {
    grid-column: 1 / -1;
    justify-items: start;
  }
}

@media (max-width: 430px) {
  .materials-header .header-context {
    display: none;
  }

  .materials-header .header-controls {
    margin-left: auto;
  }

  .materials-header .header-capsule > .brand {
    position: absolute;
    top: 50%;
    left: 50%;
    justify-self: auto;
    transform: translate(-50%, -50%);
  }

  .materials-status {
    grid-template-columns: 42px minmax(0, 1fr);
    padding: 15px;
  }

  .materials-status > i {
    width: 42px;
    height: 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .material-tab {
    transition: none;
  }
}