.ef-required-main {
  max-width: 1480px;
  margin: 0 auto;
  padding: 72px 32px 96px;
}

.ef-required-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(34px, 5vw, 72px);
  border: 1px solid var(--ef-line2);
  border-radius: 32px;
  background:
    radial-gradient(circle at 88% 12%, rgba(0, 200, 160, 0.16), transparent 31%),
    radial-gradient(circle at 8% 100%, rgba(212, 175, 94, 0.13), transparent 34%),
    linear-gradient(145deg, rgba(18, 22, 31, 0.98), rgba(8, 10, 17, 0.98));
  box-shadow: var(--ef-shadow-glow);
}

.ef-required-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(90deg, transparent, #000 62%);
}

.ef-required-breadcrumbs,
.ef-required-kicker,
.ef-required-version,
.ef-required-toc-label,
.ef-required-table th,
.ef-required-mode,
.ef-required-source-label {
  font-family: "DM Mono", monospace;
  letter-spacing: 0.065em;
  text-transform: uppercase;
}

.ef-required-breadcrumbs {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  color: var(--ef-ink3);
  font-size: 11px;
}

.ef-required-breadcrumbs a:hover {
  color: var(--ef-teal);
}

.ef-required-kicker {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 17px;
  color: var(--ef-gold2);
  font-size: 11px;
}

.ef-required-kicker::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ef-teal);
  box-shadow: 0 0 20px rgba(0, 200, 160, 0.8);
}

.ef-required-title {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0;
  font-family: "Fraunces", serif;
  font-size: clamp(42px, 6vw, 82px);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.ef-required-title em {
  color: var(--ef-gold2);
  font-weight: 400;
}

.ef-required-subtitle {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin: 26px 0 0;
  color: var(--ef-ink2);
  font-size: clamp(17px, 2vw, 22px);
}

.ef-required-version {
  position: relative;
  z-index: 1;
  display: inline-flex;
  margin-top: 28px;
  padding: 9px 13px;
  border: 1px solid rgba(0, 200, 160, 0.26);
  border-radius: 999px;
  background: rgba(0, 200, 160, 0.08);
  color: var(--ef-teal);
  font-size: 10px;
}

.ef-required-meta {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 42px;
  overflow: hidden;
  border: 1px solid var(--ef-line2);
  border-radius: 18px;
  background: var(--ef-line2);
}

.ef-required-meta div {
  min-width: 0;
  padding: 18px;
  background: rgba(8, 10, 17, 0.88);
}

.ef-required-meta dt {
  margin-bottom: 7px;
  color: var(--ef-gold2);
  font-family: "DM Mono", monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ef-required-meta dd {
  margin: 0;
  color: var(--ef-ink);
  font-size: 13px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.ef-required-alert {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  margin-top: 24px;
  padding: 22px 24px;
  border: 1px solid rgba(212, 175, 94, 0.3);
  border-radius: 18px;
  background: rgba(212, 175, 94, 0.075);
  color: var(--ef-ink2);
}

.ef-required-alert svg {
  margin-top: 2px;
  color: var(--ef-gold2);
}

.ef-required-alert strong {
  color: var(--ef-ink);
}

.ef-required-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 56px;
  align-items: start;
  margin-top: 64px;
}

.ef-required-article {
  min-width: 0;
}

.ef-required-toc {
  position: sticky;
  top: calc(var(--ef-header-height) + 24px);
  padding: 22px;
  border: 1px solid var(--ef-line2);
  border-radius: 20px;
  background: rgba(14, 17, 27, 0.9);
  box-shadow: var(--ef-shadow);
  backdrop-filter: blur(18px);
}

.ef-required-toc-label {
  margin-bottom: 13px;
  color: var(--ef-gold2);
  font-size: 10px;
}

.ef-required-toc nav {
  display: grid;
  gap: 4px;
}

.ef-required-toc a {
  padding: 8px 10px;
  border-radius: 9px;
  color: var(--ef-ink2);
  font-size: 12px;
  line-height: 1.35;
}

.ef-required-toc a:hover {
  background: rgba(0, 200, 160, 0.08);
  color: var(--ef-teal);
}

.ef-required-section {
  scroll-margin-top: calc(var(--ef-header-height) + 28px);
  padding-bottom: 64px;
}

.ef-required-section + .ef-required-section {
  padding-top: 64px;
  border-top: 1px solid var(--ef-line);
}

.ef-required-section h2 {
  max-width: 940px;
  margin: 0 0 16px;
  font-family: "Fraunces", serif;
  font-size: clamp(32px, 4vw, 50px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.ef-required-section h3 {
  margin: 42px 0 10px;
  color: var(--ef-gold2);
  font-size: clamp(20px, 2.5vw, 28px);
  line-height: 1.2;
}

.ef-required-section > p,
.ef-required-copy {
  max-width: 900px;
  color: var(--ef-ink2);
  font-size: 16px;
}

.ef-required-table-wrap {
  width: 100%;
  margin: 20px 0 10px;
  overflow-x: auto;
  border: 1px solid var(--ef-line2);
  border-radius: 18px;
  background: rgba(10, 12, 20, 0.72);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.18);
}

.ef-required-table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
  table-layout: fixed;
}

.ef-required-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 13px 14px;
  border-bottom: 1px solid var(--ef-line2);
  background: #151a26;
  color: var(--ef-ink2);
  font-size: 9px;
  text-align: left;
}

.ef-required-table td {
  padding: 15px 14px;
  border-bottom: 1px solid var(--ef-line);
  color: var(--ef-ink2);
  font-size: 13px;
  line-height: 1.48;
  vertical-align: top;
}

.ef-required-table tbody tr:last-child td {
  border-bottom: 0;
}

.ef-required-table tbody tr:hover td {
  background: rgba(255, 255, 255, 0.022);
}

.ef-required-table td strong {
  color: var(--ef-ink);
}

.ef-required-table code {
  overflow-wrap: anywhere;
  color: #9dc9ff;
  font-family: "DM Mono", monospace;
  font-size: 11px;
}

.ef-required-table .ef-required-col-mode {
  width: 112px;
}

.ef-required-table .ef-required-col-bt {
  width: 104px;
}

.ef-required-table .ef-required-col-field {
  width: 24%;
}

.ef-required-mode {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 76px;
  padding: 6px 8px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 8px;
  font-weight: 500;
  line-height: 1;
}

.ef-required-mode--always {
  border-color: rgba(0, 200, 160, 0.28);
  background: rgba(0, 200, 160, 0.1);
  color: #47e6c4;
}

.ef-required-mode--line {
  border-color: rgba(74, 158, 255, 0.3);
  background: rgba(74, 158, 255, 0.11);
  color: #8fc3ff;
}

.ef-required-mode--condition {
  border-color: rgba(212, 175, 94, 0.3);
  background: rgba(212, 175, 94, 0.11);
  color: var(--ef-gold2);
}

.ef-required-mode--system {
  border-color: var(--ef-line2);
  background: rgba(148, 163, 184, 0.08);
  color: var(--ef-ink2);
}

.ef-required-mode--alternative {
  border-color: rgba(192, 132, 252, 0.3);
  background: rgba(192, 132, 252, 0.1);
  color: #d8b4fe;
}

.ef-required-identifier-note {
  margin-top: 16px;
  padding: 18px 20px;
  border-left: 3px solid var(--ef-red);
  border-radius: 0 14px 14px 0;
  background: rgba(224, 85, 85, 0.08);
  color: #ffc2c2;
  font-size: 14px;
  font-weight: 600;
}

.ef-required-code {
  position: relative;
  margin-top: 22px;
  overflow: hidden;
  border: 1px solid var(--ef-line2);
  border-radius: 18px;
  background: #070a10;
  box-shadow: var(--ef-shadow);
}

.ef-required-code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--ef-line);
  color: var(--ef-ink3);
  font-family: "DM Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.ef-required-code-copy {
  padding: 7px 10px;
  border: 1px solid var(--ef-line2);
  border-radius: 8px;
  background: var(--ef-surface);
  color: var(--ef-ink2);
  cursor: pointer;
}

.ef-required-code-copy:hover {
  border-color: rgba(0, 200, 160, 0.4);
  color: var(--ef-teal);
}

.ef-required-code pre {
  max-height: 760px;
  margin: 0;
  overflow: auto;
  padding: 22px;
}

.ef-required-code code {
  color: #c7d5e8;
  font-family: "DM Mono", monospace;
  font-size: 11px;
  line-height: 1.62;
  white-space: pre;
}

.ef-required-sources {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.ef-required-source {
  padding: 18px 20px;
  border: 1px solid var(--ef-line2);
  border-radius: 14px;
  background: rgba(18, 22, 31, 0.62);
}

.ef-required-source-label {
  margin-bottom: 5px;
  color: var(--ef-gold2);
  font-size: 9px;
}

.ef-required-source a {
  color: var(--ef-teal);
  overflow-wrap: anywhere;
}

.ef-required-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-top: 24px;
  padding: 30px;
  border: 1px solid rgba(0, 200, 160, 0.25);
  border-radius: 22px;
  background:
    radial-gradient(circle at 100% 0, rgba(0, 200, 160, 0.13), transparent 36%),
    var(--ef-surface);
}

.ef-required-cta h2 {
  margin: 0 0 7px;
  font-size: clamp(24px, 3vw, 36px);
}

.ef-required-cta p {
  margin: 0;
  color: var(--ef-ink2);
}

.ef-required-cta-actions {
  display: flex;
  flex-shrink: 0;
  gap: 10px;
}

@media (max-width: 1080px) {
  .ef-required-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ef-required-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .ef-required-toc {
    position: static;
    grid-row: 1;
  }

  .ef-required-toc nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .ef-required-page .ef-nav-actions > .ef-btn {
    display: none;
  }

  .ef-required-page .ef-nav {
    padding-inline: 16px;
  }

  .ef-required-main {
    padding: 32px 16px 64px;
  }

  .ef-required-hero {
    padding: 28px 20px;
    border-radius: 24px;
  }

  .ef-required-meta,
  .ef-required-toc nav {
    grid-template-columns: 1fr;
  }

  .ef-required-layout {
    gap: 34px;
    margin-top: 38px;
  }

  .ef-required-section {
    padding-bottom: 44px;
  }

  .ef-required-section + .ef-required-section {
    padding-top: 44px;
  }

  .ef-required-alert {
    grid-template-columns: 1fr;
  }

  .ef-required-cta {
    align-items: stretch;
    flex-direction: column;
  }

  .ef-required-cta-actions {
    flex-wrap: wrap;
  }
}

:root[data-ef-theme="light"] .ef-required-hero {
  background:
    radial-gradient(circle at 88% 12%, rgba(0, 150, 125, 0.13), transparent 31%),
    radial-gradient(circle at 8% 100%, rgba(169, 127, 47, 0.11), transparent 34%),
    linear-gradient(145deg, #ffffff, #f4f7fb);
  border-color: #b8c7d9;
  box-shadow: 0 24px 64px rgba(34, 48, 75, 0.13);
}

:root[data-ef-theme="light"] .ef-required-breadcrumbs,
:root[data-ef-theme="light"] .ef-required-version {
  color: #38516f;
}

:root[data-ef-theme="light"] .ef-required-kicker,
:root[data-ef-theme="light"] .ef-required-meta dt,
:root[data-ef-theme="light"] .ef-required-toc-label,
:root[data-ef-theme="light"] .ef-required-source-label,
:root[data-ef-theme="light"] .ef-required-section h3 {
  color: #76500d;
}

:root[data-ef-theme="light"] .ef-required-title {
  color: #111c2d;
}

:root[data-ef-theme="light"] .ef-required-title em {
  color: #8a5d0d;
}

:root[data-ef-theme="light"] .ef-required-subtitle,
:root[data-ef-theme="light"] .ef-required-section > p,
:root[data-ef-theme="light"] .ef-required-copy,
:root[data-ef-theme="light"] .ef-required-cta p {
  color: #3c506d;
}

:root[data-ef-theme="light"] .ef-required-meta {
  border-color: #b7c6d8;
  background: #b7c6d8;
}

:root[data-ef-theme="light"] .ef-required-meta div {
  background: #ffffff;
}

:root[data-ef-theme="light"] .ef-required-meta dd {
  color: #1b2a40;
}

:root[data-ef-theme="light"] .ef-required-alert {
  border-color: #d8b05b;
  background: #fff7e6;
  color: #4e3b1b;
  box-shadow: 0 12px 32px rgba(105, 77, 24, 0.08);
}

:root[data-ef-theme="light"] .ef-required-alert strong {
  color: #35250c;
}

:root[data-ef-theme="light"] .ef-required-alert svg {
  color: #8a5d0d;
}

:root[data-ef-theme="light"] .ef-required-toc {
  border-color: #b7c6d8;
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 20px 50px rgba(34, 48, 75, 0.14);
}

:root[data-ef-theme="light"] .ef-required-toc a {
  color: #344b69;
}

:root[data-ef-theme="light"] .ef-required-toc a:hover {
  background: #e3f4ef;
  color: #006b59;
}

:root[data-ef-theme="light"] .ef-required-table-wrap {
  border-color: #aebed1;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(34, 48, 75, 0.1);
}

:root[data-ef-theme="light"] .ef-required-table {
  background: #ffffff;
}

:root[data-ef-theme="light"] .ef-required-table th {
  border-bottom-color: #aebed1;
  background: #dce6f2;
  color: #263b58;
}

:root[data-ef-theme="light"] .ef-required-table td {
  border-bottom-color: #cbd6e2;
  color: #304661;
}

:root[data-ef-theme="light"] .ef-required-table td strong {
  color: #111d2e;
}

:root[data-ef-theme="light"] .ef-required-table tbody tr:hover td {
  background: #edf4fb;
}

:root[data-ef-theme="light"] .ef-required-table code {
  color: #075cad;
  font-weight: 500;
}

:root[data-ef-theme="light"] .ef-required-mode--always {
  border-color: #5dc7b3;
  background: #d6f3ec;
  color: #006653;
}

:root[data-ef-theme="light"] .ef-required-mode--line {
  border-color: #80afe9;
  background: #dfecff;
  color: #174f91;
}

:root[data-ef-theme="light"] .ef-required-mode--condition {
  border-color: #d8ad55;
  background: #fff0ca;
  color: #714b08;
}

:root[data-ef-theme="light"] .ef-required-mode--system {
  border-color: #9fb0c4;
  background: #e8eef5;
  color: #344962;
}

:root[data-ef-theme="light"] .ef-required-mode--alternative {
  border-color: #b790e7;
  background: #eee1ff;
  color: #6432a0;
}

:root[data-ef-theme="light"] .ef-required-identifier-note {
  border-left-color: #b43838;
  background: #fff0f0;
  color: #8a2424;
}

:root[data-ef-theme="light"] .ef-required-code {
  background: #101722;
  border-color: #26364d;
  box-shadow: 0 18px 44px rgba(34, 48, 75, 0.2);
}

:root[data-ef-theme="light"] .ef-required-code-head {
  color: #c0cce0;
}

:root[data-ef-theme="light"] .ef-required-code-copy {
  border-color: #44536a;
  background: #1b2637;
  color: #e6edf7;
}

:root[data-ef-theme="light"] .ef-required-source {
  border-color: #becbda;
  background: #ffffff;
  color: #304661;
  box-shadow: 0 8px 22px rgba(34, 48, 75, 0.06);
}

:root[data-ef-theme="light"] .ef-required-source a {
  color: #006b59;
  font-weight: 600;
}

:root[data-ef-theme="light"] .ef-required-cta {
  border-color: rgba(0, 122, 101, 0.35);
  background:
    radial-gradient(circle at 100% 0, rgba(0, 143, 120, 0.13), transparent 36%),
    #ffffff;
  box-shadow: 0 18px 44px rgba(34, 48, 75, 0.1);
}