:root {
  --en-navy: #050814;
  --en-navy-2: #070b1e;
  --en-panel: #0c1430;
  --en-panel-soft: rgba(255, 255, 255, 0.065);
  --en-line: rgba(255, 255, 255, 0.13);
  --en-text: #f8fafc;
  --en-muted: #aeb8c9;
  --en-blue: #3b82f6;
  --en-blue-light: #60a5fa;
  --en-gold: #f2c14e;
  --en-gold-light: #ffe29a;
  --en-shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-padding-top: 86px;
}

body {
  margin: 0;
  background: var(--en-navy);
  color: var(--en-text);
  font-family: "Manrope", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

body::selection {
  background: var(--en-gold);
  color: #111827;
}

a,
button,
summary {
  -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--en-gold);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--en-gold);
  color: #111827;
  font-weight: 900;
  transform: translateY(-160%);
  transition: transform 0.2s ease;
}

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

.en-container {
  width: min(1180px, calc(100% - 44px));
  margin-inline: auto;
}

.en-eyebrow {
  margin: 0 0 14px;
  color: var(--en-gold);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  line-height: 1.35;
  text-transform: uppercase;
}

.en-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--en-line);
  background: rgba(5, 8, 20, 0.87);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.en-nav {
  width: min(1180px, calc(100% - 44px));
  min-height: 72px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.en-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--en-text);
}

.en-brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(242, 193, 78, 0.4);
  border-radius: 11px;
  background: rgba(242, 193, 78, 0.08);
  color: var(--en-gold);
  font-family: Georgia, serif;
  font-size: 1.24rem;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
}

.en-brand strong,
.en-brand small {
  display: block;
  line-height: 1.1;
}

.en-brand strong {
  font-size: 0.86rem;
  letter-spacing: 0.11em;
}

.en-brand small {
  margin-top: 5px;
  color: var(--en-muted);
  font-size: 0.68rem;
  font-weight: 700;
}

.en-nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-left: auto;
}

.en-nav-links a {
  color: var(--en-muted);
  font-size: 0.82rem;
  font-weight: 800;
  transition: color 0.18s ease;
}

.en-nav-links a:hover {
  color: var(--en-text);
}

.en-nav-cta {
  padding: 10px 16px;
  border: 1px solid rgba(242, 193, 78, 0.45);
  border-radius: 999px;
  background: linear-gradient(135deg, var(--en-gold), var(--en-gold-light));
  color: #111827;
  font-size: 0.82rem;
  font-weight: 950;
  box-shadow: 0 12px 28px rgba(242, 193, 78, 0.16);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.en-nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(242, 193, 78, 0.24);
}

.en-hero {
  position: relative;
  isolation: isolate;
  min-height: 720px;
  display: grid;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 15% 0, rgba(59, 130, 246, 0.2), transparent 34%),
    radial-gradient(circle at 90% 40%, rgba(242, 193, 78, 0.09), transparent 30%),
    linear-gradient(145deg, #03050d 0%, #07102a 56%, #050814 100%);
}

.en-grid-pattern {
  position: absolute;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(rgba(96, 165, 250, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96, 165, 250, 0.055) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 94%);
}

.en-orb {
  position: absolute;
  z-index: -2;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}

.en-orb-blue {
  top: 8%;
  left: -8%;
  width: 430px;
  height: 430px;
  background: rgba(37, 99, 235, 0.22);
}

.en-orb-gold {
  right: -6%;
  bottom: 2%;
  width: 360px;
  height: 360px;
  background: rgba(242, 193, 78, 0.11);
}

.en-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.82fr);
  align-items: center;
  gap: clamp(40px, 7vw, 92px);
  padding-block: 74px 84px;
}

.en-hero-copy h1,
.en-section-heading h2,
.en-author h2,
.en-final-cta h2 {
  margin: 0;
  font-family: "Anton", Impact, sans-serif;
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 0.98;
  text-transform: uppercase;
}

.en-hero-copy h1 {
  max-width: 790px;
  font-size: clamp(3.1rem, 7vw, 6.5rem);
}

.en-hero-copy h1 span {
  color: var(--en-blue-light);
  text-shadow: 0 0 38px rgba(59, 130, 246, 0.32);
}

.en-lead {
  max-width: 720px;
  margin: 26px 0 0;
  color: #cbd5e1;
  font-size: clamp(1.04rem, 1.7vw, 1.28rem);
  line-height: 1.7;
}

.en-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 30px;
}

.en-btn {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border: 1px solid var(--en-line);
  border-radius: 14px;
  font-size: 0.92rem;
  font-weight: 950;
  line-height: 1.2;
  text-align: center;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.en-btn:hover {
  transform: translateY(-2px);
}

.en-btn-primary,
.en-btn-blue {
  border-color: rgba(96, 165, 250, 0.48);
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  color: white;
  box-shadow: 0 16px 34px rgba(37, 99, 235, 0.23);
}

.en-btn-primary:hover,
.en-btn-blue:hover {
  box-shadow: 0 20px 40px rgba(37, 99, 235, 0.32);
}

.en-btn-secondary {
  background: rgba(255, 255, 255, 0.055);
  color: var(--en-text);
}

.en-btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.09);
}

.en-btn-gold {
  border-color: rgba(242, 193, 78, 0.55);
  background: linear-gradient(135deg, var(--en-gold), var(--en-gold-light));
  color: #111827;
  box-shadow: 0 16px 34px rgba(242, 193, 78, 0.18);
}

.en-btn-gold:hover {
  box-shadow: 0 20px 40px rgba(242, 193, 78, 0.26);
}

.en-authority {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.en-authority li {
  padding: 8px 11px;
  border: 1px solid var(--en-line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: #cbd5e1;
  font-size: 0.74rem;
  font-weight: 800;
}

.en-authority li::before {
  content: "✓";
  margin-right: 6px;
  color: var(--en-gold);
}

.en-hero-visual {
  position: relative;
  max-width: 430px;
  justify-self: end;
}

.en-book-frame {
  position: relative;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 32px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.035));
  box-shadow: 0 44px 110px rgba(0, 0, 0, 0.5), 0 0 70px rgba(37, 99, 235, 0.13);
  transform: perspective(1000px) rotateY(-5deg) rotateX(1deg);
}

.en-book-kicker {
  margin: 0 0 13px;
  color: var(--en-gold);
  font-size: 0.66rem;
  font-weight: 900;
  letter-spacing: 0.17em;
  text-align: center;
}

.en-book-frame img {
  width: 100%;
  aspect-ratio: 794 / 1123;
  display: block;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 20px;
  object-fit: cover;
  object-position: right center;
  box-shadow: 0 24px 55px rgba(0, 0, 0, 0.42);
}

.en-book-caption {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
  margin-top: 15px;
}

.en-book-caption strong,
.en-book-caption span {
  display: block;
}

.en-book-caption strong {
  font-family: "Anton", Impact, sans-serif;
  font-size: 1.38rem;
  font-weight: 400;
  text-transform: uppercase;
}

.en-book-caption span {
  max-width: 145px;
  color: var(--en-muted);
  font-size: 0.69rem;
  line-height: 1.4;
  text-align: right;
}

.en-formula {
  position: absolute;
  z-index: 3;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(5, 8, 20, 0.84);
  color: var(--en-gold);
  font-family: Georgia, serif;
  font-weight: 800;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.42);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.en-formula-a {
  top: 13%;
  left: -32px;
  width: 70px;
  height: 48px;
  border-radius: 15px;
}

.en-formula-b {
  right: -30px;
  bottom: 23%;
  width: 62px;
  height: 62px;
  border-radius: 18px;
  color: var(--en-blue-light);
  font-size: 1.8rem;
}

.en-formula-c {
  right: -18px;
  top: 7%;
  width: 58px;
  height: 42px;
  border-radius: 13px;
}

.en-facts {
  padding: 80px 0;
  border-block: 1px solid var(--en-line);
  background: #070b17;
}

.en-section {
  padding: 108px 0;
}

.en-section-heading {
  max-width: 850px;
  margin-bottom: 42px;
}

.en-section-heading-center {
  margin-inline: auto;
  text-align: center;
}

.en-section-heading h2,
.en-author h2 {
  font-size: clamp(2.7rem, 5.5vw, 5.5rem);
}

.en-section-heading h2 span {
  color: var(--en-blue-light);
}

.en-section-heading > p:last-child {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--en-muted);
  font-size: clamp(1rem, 1.6vw, 1.14rem);
}

.en-section-heading-center > p:last-child {
  margin-inline: auto;
}

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

.en-stat-card {
  min-height: 150px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 24px;
  border: 1px solid var(--en-line);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.035));
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.2);
  text-align: center;
}

.en-stat-card strong {
  display: block;
  color: var(--en-gold);
  font-family: "Anton", Impact, sans-serif;
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1;
  text-transform: uppercase;
}

.en-stat-card span {
  margin-top: 10px;
  color: var(--en-muted);
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1.35;
  text-transform: uppercase;
}

.en-source-note {
  margin: 20px 0 0;
  color: #7f8aa2;
  font-size: 0.75rem;
  text-align: center;
}

.en-source-note a {
  color: var(--en-blue-light);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.en-challenge {
  background:
    radial-gradient(circle at 90% 15%, rgba(59, 130, 246, 0.12), transparent 30%),
    linear-gradient(180deg, #050814, #080d1a);
}

.en-topic-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.en-topic-card {
  min-height: 270px;
  padding: 26px;
  border: 1px solid var(--en-line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.045);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.18);
}

.en-topic-card > span {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid rgba(96, 165, 250, 0.3);
  border-radius: 10px;
  color: var(--en-blue-light);
  font-size: 0.7rem;
  font-weight: 900;
}

.en-topic-card h3 {
  margin: 62px 0 8px;
  font-size: 1.12rem;
  line-height: 1.25;
}

.en-topic-card p {
  margin: 0;
  color: var(--en-muted);
  font-size: 0.9rem;
}

.en-topic-card-featured {
  border-color: rgba(242, 193, 78, 0.4);
  background: linear-gradient(160deg, rgba(242, 193, 78, 0.14), rgba(255, 255, 255, 0.045));
}

.en-topic-card-featured > span {
  border-color: rgba(242, 193, 78, 0.38);
  color: var(--en-gold);
}

.en-offers {
  border-block: 1px solid var(--en-line);
  background: #071022;
}

.en-offer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
  gap: 18px;
}

.en-offer-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 30px;
  border: 1px solid var(--en-line);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.085), rgba(255, 255, 255, 0.035));
  box-shadow: var(--en-shadow);
}

.en-offer-card-featured {
  border-color: rgba(242, 193, 78, 0.55);
  background: linear-gradient(160deg, rgba(242, 193, 78, 0.15), rgba(59, 130, 246, 0.08) 62%, rgba(255, 255, 255, 0.035));
  box-shadow: 0 0 0 1px rgba(242, 193, 78, 0.15), var(--en-shadow);
}

.en-offer-badge {
  position: absolute;
  top: -13px;
  left: 28px;
  padding: 6px 11px;
  border-radius: 999px;
  background: var(--en-gold);
  color: #111827;
  font-size: 0.65rem;
  font-weight: 950;
  letter-spacing: 0.06em;
}

.en-offer-step {
  margin: 0 0 14px;
  color: var(--en-blue-light);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.en-offer-card-featured .en-offer-step {
  color: var(--en-gold);
}

.en-offer-card h3 {
  margin: 0;
  font-family: "Anton", Impact, sans-serif;
  font-size: 2.05rem;
  font-weight: 400;
  line-height: 1.05;
  text-transform: uppercase;
}

.en-offer-card > p:not(.en-offer-step) {
  margin: 16px 0 0;
  color: var(--en-muted);
  font-size: 0.92rem;
}

.en-check-list {
  display: grid;
  gap: 9px;
  margin: 22px 0 28px;
  padding: 0;
  list-style: none;
}

.en-check-list li {
  color: #d6deec;
  font-size: 0.84rem;
  font-weight: 700;
}

.en-check-list li::before {
  content: "✓";
  margin-right: 9px;
  color: var(--en-gold);
  font-weight: 950;
}

.en-offer-card .en-btn {
  width: 100%;
  margin-top: auto;
}

.en-consultor-callout {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 26px;
  margin-top: 24px;
  padding: 26px 30px;
  border: 1px solid var(--en-line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.045);
}

.en-consultor-callout .en-eyebrow {
  margin-bottom: 4px;
}

.en-consultor-callout h3 {
  margin: 0;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
}

.en-collection {
  background:
    radial-gradient(circle at 5% 20%, rgba(59, 130, 246, 0.1), transparent 30%),
    #f4f6fa;
  color: #111827;
}

.en-collection .en-eyebrow {
  color: #1d4ed8;
}

.en-collection .en-section-heading > p:last-child {
  color: #5f6b7d;
}

.en-book-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 16px;
}

.en-book-card {
  position: relative;
  min-height: 350px;
  display: flex;
  flex-direction: column;
  grid-column: span 2;
  overflow: hidden;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 24px;
  background: white;
  box-shadow: 0 18px 55px rgba(15, 23, 42, 0.1);
  color: #0f172a;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.en-book-card:nth-child(4) {
  grid-column: 2 / span 2;
}

.en-book-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 65px rgba(15, 23, 42, 0.15);
}

.en-book-spine {
  height: 9px;
  display: block;
  overflow: hidden;
  color: transparent;
}

.en-book-card > div {
  padding: 28px 28px 18px;
}

.en-book-card p {
  margin: 0 0 42px;
  font-size: 0.65rem;
  font-weight: 950;
  letter-spacing: 0.16em;
}

.en-book-card h3 {
  margin: 0 0 10px;
  font-family: "Anton", Impact, sans-serif;
  font-size: 1.8rem;
  font-weight: 400;
  line-height: 1.05;
  text-transform: uppercase;
}

.en-book-card > div > span {
  color: #64748b;
  font-size: 0.84rem;
  line-height: 1.55;
}

.en-book-card > a {
  margin: auto 28px 24px;
  padding-top: 16px;
  border-top: 1px solid #e2e8f0;
  color: #1d4ed8;
  font-size: 0.82rem;
  font-weight: 900;
}

.en-book-blue .en-book-spine { background: #2563eb; }
.en-book-white .en-book-spine { background: linear-gradient(90deg, #cbd5e1, #f8fafc, #cbd5e1); }
.en-book-purple .en-book-spine { background: #7c3aed; }
.en-book-red .en-book-spine { background: #dc2626; }
.en-book-green .en-book-spine { background: #16a34a; }

.en-book-blue p { color: #2563eb; }
.en-book-white p { color: #64748b; }
.en-book-purple p { color: #7c3aed; }
.en-book-red p { color: #dc2626; }
.en-book-green p { color: #15803d; }

.en-collection-cta {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  margin-top: 24px;
  padding: 26px 30px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 24px;
  background: #0f172a;
  color: white;
  box-shadow: 0 20px 55px rgba(15, 23, 42, 0.17);
}

.en-collection-cta p {
  margin: 0;
  color: #cbd5e1;
}

.en-collection-cta strong {
  color: white;
}

.en-courses {
  background: #070b17;
}

.en-two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  align-items: start;
  gap: clamp(50px, 8vw, 110px);
}

.en-path-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.en-path-list li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 18px;
  padding: 20px;
  border: 1px solid var(--en-line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.045);
}

.en-path-list li > span {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: rgba(59, 130, 246, 0.13);
  color: var(--en-blue-light);
  font-family: "Anton", Impact, sans-serif;
  font-size: 1.25rem;
}

.en-path-list strong {
  display: block;
  margin: 2px 0 4px;
  font-size: 0.98rem;
}

.en-path-list p {
  margin: 0;
  color: var(--en-muted);
  font-size: 0.84rem;
}

.en-author {
  border-block: 1px solid var(--en-line);
  background:
    radial-gradient(circle at 10% 80%, rgba(242, 193, 78, 0.1), transparent 30%),
    linear-gradient(145deg, #08122d, #050814);
}

.en-author-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
  align-items: center;
  gap: clamp(44px, 8vw, 104px);
}

.en-author-photo {
  position: relative;
  max-width: 420px;
  padding: 13px;
  border: 1px solid var(--en-line);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.055);
  box-shadow: var(--en-shadow);
}

.en-author-photo img {
  width: 100%;
  aspect-ratio: 1;
  display: block;
  border-radius: 22px;
  object-fit: cover;
}

.en-author-photo span {
  position: absolute;
  right: -12px;
  bottom: 24px;
  padding: 8px 13px;
  border-radius: 999px;
  background: var(--en-gold);
  color: #111827;
  font-size: 0.74rem;
  font-weight: 950;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
}

.en-author h2 {
  margin-bottom: 20px;
}

.en-author-grid > div:last-child > p:not(.en-eyebrow) {
  max-width: 700px;
  margin: 0;
  color: #cbd5e1;
  font-size: 1.02rem;
}

.en-credential-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 26px;
}

.en-credential-grid span {
  padding: 12px 14px;
  border: 1px solid var(--en-line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.045);
  color: #dbe4f1;
  font-size: 0.78rem;
  font-weight: 850;
}

.en-credential-grid span::before {
  content: "•";
  margin-right: 8px;
  color: var(--en-gold);
}

.en-text-link {
  display: inline-flex;
  gap: 7px;
  margin-top: 24px;
  color: var(--en-blue-light);
  font-size: 0.88rem;
  font-weight: 900;
}

.en-faq {
  background: #f7f8fb;
  color: #111827;
}

.en-faq .en-eyebrow {
  color: #1d4ed8;
}

.en-faq-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  align-items: start;
  gap: clamp(44px, 8vw, 100px);
}

.en-faq-list {
  display: grid;
  gap: 10px;
}

.en-faq-list details {
  overflow: hidden;
  border: 1px solid #d9e0eb;
  border-radius: 16px;
  background: white;
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.055);
}

.en-faq-list summary {
  position: relative;
  padding: 19px 52px 19px 20px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 900;
  list-style: none;
}

.en-faq-list summary::-webkit-details-marker {
  display: none;
}

.en-faq-list summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 20px;
  color: #2563eb;
  font-size: 1.4rem;
  line-height: 1;
  transform: translateY(-50%);
  transition: transform 0.18s ease;
}

.en-faq-list details[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.en-faq-list details p {
  margin: 0;
  padding: 0 20px 20px;
  color: #596579;
  font-size: 0.87rem;
}

.en-final-cta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 118px 0;
  background:
    radial-gradient(circle at 50% 90%, rgba(37, 99, 235, 0.23), transparent 44%),
    #050814;
  text-align: center;
}

.en-final-cta .en-container {
  max-width: 880px;
}

.en-final-cta h2 {
  font-size: clamp(3.2rem, 7vw, 6.7rem);
}

.en-final-cta > .en-container > p:not(.en-eyebrow) {
  max-width: 690px;
  margin: 24px auto 0;
  color: var(--en-muted);
  font-size: 1.06rem;
}

.en-actions-center {
  justify-content: center;
}

.en-footer {
  padding: 46px 0;
  border-top: 1px solid var(--en-line);
  background: #03050b;
  color: #748198;
  text-align: center;
}

.en-footer strong {
  color: #dbe4f1;
  font-family: "Anton", Impact, sans-serif;
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.06em;
}

.en-footer p {
  margin: 8px 0 18px;
  font-size: 0.76rem;
}

.en-footer div > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.en-footer a {
  color: #9aa7bb;
  font-size: 0.76rem;
  font-weight: 800;
}

.en-footer a:hover {
  color: white;
}

.en-mobile-cta {
  display: none;
}

@media (max-width: 1000px) {
  .en-nav-links {
    display: none;
  }

  .en-hero {
    min-height: auto;
  }

  .en-hero-grid {
    grid-template-columns: 1fr;
    gap: 58px;
    padding-block: 64px 80px;
  }

  .en-hero-copy {
    max-width: 850px;
  }

  .en-hero-visual {
    width: min(420px, 82vw);
    justify-self: center;
  }

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

  .en-offer-grid {
    grid-template-columns: 1fr;
    max-width: 720px;
    margin-inline: auto;
  }

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

  .en-book-card,
  .en-book-card:nth-child(4) {
    grid-column: auto;
  }

  .en-book-card:last-child {
    grid-column: 1 / -1;
    width: calc(50% - 8px);
    justify-self: center;
  }

  .en-two-column,
  .en-faq-layout {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .en-two-column .en-section-heading,
  .en-faq-layout .en-section-heading {
    max-width: 780px;
  }
}

@media (max-width: 760px) {
  html {
    scroll-padding-top: 72px;
  }

  body {
    padding-bottom: calc(78px + env(safe-area-inset-bottom));
  }

  .en-container,
  .en-nav {
    width: min(100% - 32px, 1180px);
  }

  .en-nav {
    min-height: 64px;
    gap: 12px;
  }

  .en-brand-mark {
    width: 34px;
    height: 34px;
  }

  .en-brand strong {
    font-size: 0.72rem;
  }

  .en-brand small {
    display: none;
  }

  .en-nav-cta {
    padding: 9px 12px;
    font-size: 0.72rem;
  }

  .en-hero-grid {
    padding-block: 48px 66px;
  }

  .en-hero-copy h1 {
    font-size: clamp(3.15rem, 15vw, 5rem);
  }

  .en-lead {
    margin-top: 20px;
    font-size: 0.98rem;
  }

  .en-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .en-actions .en-btn {
    width: 100%;
  }

  .en-authority {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .en-authority li {
    border-radius: 12px;
    font-size: 0.68rem;
  }

  .en-authority li:last-child {
    grid-column: 1 / -1;
  }

  .en-formula-a {
    left: -14px;
  }

  .en-formula-b,
  .en-formula-c {
    right: -12px;
  }

  .en-book-frame {
    padding: 16px;
    border-radius: 25px;
    transform: none;
  }

  .en-facts,
  .en-section {
    padding: 74px 0;
  }

  .en-section-heading {
    margin-bottom: 30px;
  }

  .en-section-heading h2,
  .en-author h2 {
    font-size: clamp(2.65rem, 12vw, 4rem);
  }

  .en-section-heading > p:last-child {
    margin-top: 16px;
    font-size: 0.94rem;
  }

  .en-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .en-stat-card {
    min-height: 128px;
    padding: 16px 11px;
  }

  .en-stat-card strong {
    font-size: 2.4rem;
  }

  .en-stat-card span {
    font-size: 0.66rem;
  }

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

  .en-topic-card {
    min-height: 0;
    padding: 21px;
  }

  .en-topic-card h3 {
    margin-top: 26px;
  }

  .en-offer-card {
    padding: 28px 22px 22px;
  }

  .en-consultor-callout,
  .en-collection-cta {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .en-consultor-callout .en-btn,
  .en-collection-cta .en-btn {
    width: 100%;
  }

  .en-book-grid {
    grid-template-columns: 1fr;
  }

  .en-book-card,
  .en-book-card:last-child {
    width: 100%;
    grid-column: auto;
  }

  .en-book-card {
    min-height: 315px;
  }

  .en-book-card p {
    margin-bottom: 28px;
  }

  .en-path-list li {
    grid-template-columns: 44px 1fr;
    padding: 17px;
  }

  .en-path-list li > span {
    width: 44px;
    height: 44px;
  }

  .en-author-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .en-author-photo {
    width: min(360px, 92%);
    justify-self: center;
  }

  .en-credential-grid {
    grid-template-columns: 1fr;
  }

  .en-final-cta {
    padding: 86px 0;
  }

  .en-final-cta h2 {
    font-size: clamp(3rem, 14vw, 5rem);
  }

  .en-mobile-cta {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 60;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 11px 14px calc(11px + env(safe-area-inset-bottom));
    border-top: 1px solid var(--en-line);
    background: rgba(5, 8, 20, 0.94);
    box-shadow: 0 -16px 40px rgba(0, 0, 0, 0.34);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
  }

  .en-mobile-cta span strong,
  .en-mobile-cta span small {
    display: block;
    line-height: 1.2;
  }

  .en-mobile-cta span strong {
    font-size: 0.72rem;
  }

  .en-mobile-cta span small {
    margin-top: 4px;
    color: var(--en-muted);
    font-size: 0.62rem;
  }

  .en-mobile-cta > a {
    flex-shrink: 0;
    padding: 11px 15px;
    border-radius: 11px;
    background: var(--en-gold);
    color: #111827;
    font-size: 0.72rem;
    font-weight: 950;
  }
}

@media (max-width: 390px) {
  .en-brand-mark {
    display: none;
  }

  .en-authority {
    grid-template-columns: 1fr;
  }

  .en-authority li:last-child {
    grid-column: auto;
  }

  .en-mobile-cta span {
    display: none;
  }

  .en-mobile-cta > a {
    width: 100%;
    text-align: center;
  }
}

@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;
  }
}