:root {
  --navy-950: #06101f;
  --navy-900: #08182d;
  --navy-800: #0d2544;
  --navy-700: #123663;
  --blue-500: #3d8cff;
  --blue-300: #8bbcff;
  --green: #29e66b;
  --green-dark: #11b94d;
  --white: #ffffff;
  --paper: #f3f7fb;
  --ink: #111827;
  --muted: #637083;
  --line: rgba(255, 255, 255, 0.14);
  --dark-line: #dbe4f0;
  --radius: 8px;
  --shadow: 0 24px 70px rgba(2, 8, 23, 0.24);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Poppins", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.hero {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  padding: 72px clamp(18px, 5vw, 72px);
  color: var(--white);
  background:
    radial-gradient(circle at 73% 25%, rgba(61, 140, 255, 0.34), transparent 30%),
    radial-gradient(circle at 95% 105%, rgba(41, 230, 107, 0.16), transparent 32%),
    linear-gradient(135deg, #031020 0%, var(--navy-900) 48%, #12365f 100%);
}

.hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 92px 92px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 80%);
  content: "";
}

.hero::after {
  position: absolute;
  right: -18vw;
  bottom: -22vw;
  width: 48vw;
  height: 48vw;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 50%;
  content: "";
}

.hero-grid,
.split,
.section-heading,
.specialist-card,
.offer-grid,
.final-cta {
  max-width: 1160px;
  margin: 0 auto;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(360px, 0.82fr);
  gap: clamp(32px, 6vw, 78px);
  align-items: end;
}

.pill,
.section-tag {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  margin: 0 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 8px 12px;
  color: #cfe0ff;
  font-size: 0.74rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.section-tag {
  border-color: rgba(61, 140, 255, 0.22);
  color: var(--blue-500);
  background: rgba(61, 140, 255, 0.08);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(2.35rem, 4.65vw, 4.1rem);
  line-height: 1;
  letter-spacing: -0.02em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(1.8rem, 3.35vw, 3.35rem);
  line-height: 1.08;
}

h3 {
  font-size: 1.25rem;
}

.hero-lead {
  max-width: 690px;
  margin-bottom: 18px;
  color: #eaf2ff;
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  font-weight: 750;
  line-height: 1.35;
}

.hero-text {
  max-width: 690px;
  color: #c9d7eb;
  font-size: 1rem;
  line-height: 1.62;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 26px 0 22px;
}

.section-cta {
  display: flex;
  max-width: 1160px;
  margin: clamp(92px, 9vw, 124px) auto 0;
  padding-top: 0;
  justify-content: center;
}

.course .section-cta,
.modules .section-cta {
  display: flex;
  margin-top: clamp(44px, 4.5vw, 58px);
  justify-content: center;
  text-align: center;
}

.course .section-cta .btn,
.modules .section-cta .btn {
  min-width: min(100%, 320px);
}

.btn {
  display: inline-flex;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  padding: 0 24px;
  font-size: 0.86rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 58px rgba(41, 230, 107, 0.34);
}

.btn-primary {
  color: var(--navy-950);
  background:
    linear-gradient(110deg, rgba(255, 255, 255, 0.52), transparent 34%),
    linear-gradient(180deg, #78ff8d 0%, var(--green) 48%, var(--green-dark) 100%);
  box-shadow:
    0 18px 42px rgba(41, 230, 107, 0.28),
    0 0 0 7px rgba(41, 230, 107, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.btn-primary strong {
  border-left: 1px solid rgba(6, 16, 31, 0.18);
  padding-left: 12px;
  font-size: 0.94rem;
}

.hero-illustration {
  position: relative;
  min-height: 500px;
  display: grid;
  place-items: center;
}

.hero-illustration img {
  width: min(100%, 620px);
  transform: translateX(14px);
  filter: drop-shadow(0 36px 76px rgba(0, 0, 0, 0.42));
}

.hero-ticket {
  position: absolute;
  right: 4%;
  bottom: 12%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 18px;
  padding: 16px 18px;
  color: var(--white);
  background: rgba(6, 16, 31, 0.82);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(14px);
}

.hero-ticket span,
.hero-ticket strong {
  display: block;
}

.hero-ticket span {
  color: #aebed2;
  font-size: 0.72rem;
  font-weight: 850;
  text-transform: uppercase;
}

.hero-ticket strong {
  margin-top: 4px;
  color: var(--green);
  font-size: 1.05rem;
}

.section {
  padding: 92px clamp(18px, 5vw, 72px);
}

.problem,
.audience,
.outcomes,
.guarantee {
  background: var(--white);
}

.split {
  display: grid;
  grid-template-columns: minmax(280px, 0.86fr) minmax(300px, 1fr);
  gap: clamp(36px, 6vw, 82px);
  align-items: start;
}

.text-stack p,
.section-heading p,
.notice p,
.specialist-card p,
.offer-grid p,
.guarantee p,
.faq p,
.final-cta p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.course,
.modules,
.faq {
  background: var(--paper);
}

.section-heading {
  margin-bottom: 42px;
}

.section-heading h2 {
  max-width: 850px;
}

.section-heading p {
  max-width: 620px;
}

.feature-grid,
.module-list,
.outcome-grid {
  display: grid;
  max-width: 1160px;
  margin: 0 auto;
  gap: 18px;
}

.feature-grid {
  grid-template-columns: repeat(4, 1fr);
}

.feature-grid article,
.outcome-grid p,
.notice,
.specialist-card,
.price-box,
.faq details {
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
  background: var(--white);
}

.feature-grid article {
  min-height: 270px;
  padding: 26px;
}

.feature-grid article > span:not(.feature-icon) {
  display: inline-grid;
  min-width: 42px;
  height: 42px;
  margin-bottom: 38px;
  place-items: center;
  border-radius: 999px;
  padding: 0 12px;
  color: var(--white);
  background: var(--blue-500);
  font-size: 0.76rem;
  font-weight: 900;
}

.feature-icon {
  display: grid;
  width: 58px;
  height: 58px;
  margin-bottom: 20px;
  place-items: center;
  border-radius: 18px;
  color: var(--navy-950);
  background: #e8f0fb;
}

.feature-icon svg {
  width: 30px;
  height: 30px;
}

.feature-icon path {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.feature-grid p,
.outcome-grid p {
  color: var(--muted);
  line-height: 1.65;
}

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

.check-list li {
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
  padding: 18px 20px;
  background: var(--paper);
  color: #273142;
  font-weight: 650;
}

.notice {
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px);
}

.not-advanced {
  color: var(--white);
  background: var(--navy-900);
}

.not-advanced .notice {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.not-advanced .notice p {
  color: #c9d7eb;
}

.module-list {
  grid-template-columns: 1fr;
  gap: 12px;
}

.module-list details {
  border: 1px solid var(--dark-line);
  border-radius: 14px;
  background: var(--white);
  box-shadow: 0 12px 40px rgba(7, 24, 45, 0.05);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.module-list details[open] {
  border-color: rgba(41, 230, 107, 0.55);
  transform: translateX(8px);
}

.module-list summary {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  align-items: center;
  cursor: pointer;
  padding: 22px;
  list-style: none;
}

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

.module-list summary span:last-child {
  color: var(--ink);
  font-size: 1.15rem;
  font-weight: 850;
}

.module-list small {
  display: block;
  margin-bottom: 3px;
  color: var(--blue-500);
  font-size: 0.72rem;
  font-weight: 850;
  text-transform: uppercase;
}

.module-icon {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border-radius: 16px;
  color: var(--navy-950);
  background: #e9f0fb;
}

.module-list details[open] .module-icon {
  background: var(--green);
}

.module-icon svg {
  width: 28px;
  height: 28px;
}

.module-icon path {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.module-list details p {
  margin: -4px 22px 22px 98px;
  color: var(--muted);
  line-height: 1.7;
}

.outcome-grid {
  grid-template-columns: repeat(3, 1fr);
}

.outcome-grid p {
  margin: 0;
  padding: 24px;
  font-weight: 700;
}

.specialist {
  color: var(--white);
  background: linear-gradient(135deg, var(--navy-950), var(--navy-800));
}

.specialist-card {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
  border-color: var(--line);
  padding: clamp(24px, 5vw, 56px);
  background: rgba(255, 255, 255, 0.06);
}

.specialist-card p {
  color: #d0dcec;
}

.portrait {
  position: relative;
  min-height: 410px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 62% 24%, rgba(61, 140, 255, 0.38), transparent 34%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.04));
}

.portrait img {
  width: 100%;
  height: 100%;
  min-height: 410px;
  object-fit: cover;
  object-position: 50% 18%;
  filter: saturate(0.96) contrast(1.02);
}

.offer {
  color: var(--white);
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 76% 20%, rgba(61, 140, 255, 0.22), transparent 32%),
    radial-gradient(circle at 85% 110%, rgba(41, 230, 107, 0.12), transparent 28%),
    var(--navy-950);
}

.offer::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(to bottom, transparent, #000 18%, #000 80%, transparent);
  content: "";
}

.offer-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
}

.offer-grid p {
  color: #c9d7eb;
}

.offer-includes {
  display: grid;
  max-width: 560px;
  margin-top: 28px;
  gap: 12px;
}

.offer-includes span {
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 14px;
  padding: 15px 18px;
  color: #eaf2ff;
  background: rgba(255, 255, 255, 0.055);
  font-weight: 800;
}

.price-box {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 26px;
  padding: 36px;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 12%, rgba(61, 140, 255, 0.2), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 1), rgba(242, 247, 255, 0.98));
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.36), 0 0 0 1px rgba(61, 140, 255, 0.16);
}

.price-box::before {
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(61, 140, 255, 0.52), rgba(41, 230, 107, 0.36), transparent 66%);
  content: "";
}

.price-badge {
  display: inline-flex;
  margin-bottom: 22px;
  border: 1px solid rgba(41, 230, 107, 0.38);
  border-radius: 10px;
  padding: 9px 12px;
  color: var(--navy-950);
  background: rgba(41, 230, 107, 0.16);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.price-box > span,
.price-box > small {
  display: block;
  color: var(--muted);
  font-weight: 750;
}

.price-box > strong {
  display: block;
  margin: 7px 0 12px;
  color: var(--navy-950);
  font-size: clamp(3.25rem, 5.6vw, 4.35rem);
  line-height: 1;
}

.price-box p {
  margin-bottom: 0;
  color: #4b5a6e;
}

.price-list {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.price-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: #273142;
  font-weight: 700;
}

.price-list li::before {
  display: inline-grid;
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  place-items: center;
  border-radius: 50%;
  color: var(--navy-950);
  background: var(--green);
  content: "✓";
  font-size: 0.78rem;
  font-weight: 950;
}

.price-box .btn {
  width: 100%;
  min-height: 54px;
  margin: 24px 0 0;
  padding: 0 18px;
  color: var(--navy-950);
  font-size: 0.78rem;
}

.price-box .btn span {
  color: var(--navy-950);
}

.price-box .btn strong {
  display: inline-flex;
  margin: 0;
  padding-left: 10px;
  color: var(--navy-950);
  font-size: 0.86rem;
  line-height: 1;
}

.light {
  background: var(--paper);
}

.faq-list {
  display: grid;
  max-width: 900px;
  margin: 0 auto;
  gap: 12px;
}

.faq details {
  padding: 20px 22px;
}

.faq summary {
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 850;
}

.faq p {
  margin: 14px 0 0;
}

.final-cta {
  display: flex;
  gap: 32px;
  align-items: center;
  justify-content: space-between;
  padding: 76px clamp(18px, 5vw, 72px);
}

.final-cta p {
  margin-bottom: 0;
}

.final-cta .btn {
  color: var(--navy-950);
}

.footer {
  display: grid;
  place-items: center;
  max-width: none;
  width: 100%;
  margin: 0;
  padding: 18px clamp(18px, 5vw, 72px);
  color: #cbd6e5;
  background: var(--navy-950);
  box-shadow: 0 0 0 100vmax var(--navy-950);
  clip-path: inset(0 -100vmax);
}

.footer p {
  margin: 0;
  font-size: 0.88rem;
  text-align: center;
}

@media (max-width: 1040px) {
  .split,
  .specialist-card,
  .offer-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .module-list,
  .outcome-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-illustration {
    max-width: 580px;
  }
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .hero {
    min-height: auto;
    padding-top: 44px;
  }

  h1 {
    font-size: clamp(2.4rem, 10.5vw, 3.2rem);
  }

  .hero-illustration {
    min-height: auto;
    margin-top: 18px;
  }

  .hero-illustration img {
    width: min(112%, 430px);
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions,
  .section-cta,
  .final-cta {
    align-items: stretch;
    flex-direction: column;
  }

  .section-cta {
    margin-top: 72px;
  }

  .course .section-cta,
  .modules .section-cta {
    margin-top: 42px;
  }

  .btn {
    width: 100%;
  }

  .feature-grid,
  .module-list,
  .outcome-grid {
    grid-template-columns: 1fr;
  }

  .specialist-card,
  .notice,
  .price-box {
    padding: 24px;
  }

  .portrait {
    min-height: 300px;
  }

  .module-list details[open] {
    transform: none;
  }

  .module-list summary {
    grid-template-columns: 48px 1fr;
    padding: 18px;
  }

  .module-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }

  .module-list details p {
    margin: -2px 18px 18px;
  }

}