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

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: #f7f9fc;
  background: linear-gradient(180deg, #0b1220 0%, #111827 100%);
}

input,
button {
  font: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.landing-page {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.hero {
  min-height: calc(100vh - 4rem);
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 1.5rem;
  align-items: center;
}

.hero__content,
.hero__panel {
  background: rgba(17, 24, 39, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: 28px;
  padding: 2rem;
}

.hero__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero h1 {
  margin: 1rem 0 0;
  max-width: 10ch;
  font-size: clamp(2.7rem, 6vw, 4.7rem);
  line-height: 1;
  letter-spacing: -0.06em;
}

.hero__subtitle {
  max-width: 38rem;
  margin: 1.25rem 0 0;
  color: #9aa7bd;
  font-size: 1.06rem;
  line-height: 1.8;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0;
  margin: 1.5rem 0 0;
  list-style: none;
}

.hero-points li {
  padding: 0.7rem 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: #9aa7bd;
  font-size: 0.92rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  padding: 0.65rem 0.95rem;
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: 999px;
  color: #7ef0c7;
  background: rgba(245, 158, 11, 0.08);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.feature-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: 18px;
  padding: 1.25rem;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.feature-card:hover {
  transform: translateY(-4px);
}

.feature-card:hover {
  border-color: rgba(245, 158, 11, 0.4);
  box-shadow: 0 22px 45px rgba(0, 0, 0, 0.26);
}

.feature-card__icon {
  display: inline-flex;
  margin-bottom: 0.9rem;
  color: #fbbf24;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.feature-card h2 {
  margin: 0 0 0.55rem;
  font-size: 1.2rem;
}

.feature-card p {
  margin: 0;
  color: #9aa7bd;
  line-height: 1.7;
  font-size: 0.95rem;
}

.hero__panel {
  display: grid;
  gap: 1.5rem;
}

.preview-card__sheet {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
  position: relative;
  overflow: hidden;
  border-radius: 26px;
  padding: 1.35rem;
  min-height: 380px;
}

.preview-card__sheet:hover {
  transform: translateY(-4px);
}

.preview-card__sheet:hover {
  border-color: rgba(245, 158, 11, 0.35);
}

.preview-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #9aa7bd;
  font-size: 0.92rem;
}

.preview-card__lock {
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: #f7f9fc;
  font-size: 0.82rem;
  font-weight: 700;
}

.preview-card__body {
  display: block;
  margin-top: 1.5rem;
}

.preview-card__body--cover {
  filter: blur(2px);
  opacity: 0.92;
}

.preview-card__cover {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 260px;
  padding: 1.25rem;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.18), rgba(255, 255, 255, 0.04));
}

.preview-card__cover h2 {
  margin: 0.8rem 0 0.35rem;
  font-size: 1.8rem;
}

.preview-card__cover p {
  margin: 0;
  color: #9aa7bd;
}

.preview-card__pdf-badge {
  display: inline-flex;
  width: fit-content;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  font-size: 0.82rem;
  font-weight: 800;
}

.preview-card__overlay {
  position: absolute;
  inset: auto 1.35rem 1.35rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background: rgba(4, 8, 18, 0.82);
}

.preview-card__overlay p {
  margin: 0;
  color: #9aa7bd;
  font-size: 0.92rem;
}

.preview-card__overlay-badge {
  padding: 0.65rem 0.85rem;
  border-radius: 14px;
  background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
  color: #1b1200;
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.download-form {
  display: grid;
  gap: 0.85rem;
}

.download-form input {
  width: 100%;
  min-height: 56px;
  padding: 0 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  color: #f7f9fc;
  outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.download-form input::placeholder {
  color: #73819a;
}

.download-form input:focus {
  border-color: rgba(79, 209, 255, 0.45);
  box-shadow: 0 0 0 4px rgba(79, 209, 255, 0.1);
  transform: translateY(-1px);
}

.download-form__button {
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  border: 0;
  border-radius: 16px;
  background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
  color: #1b1200;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 20px 40px rgba(245, 158, 11, 0.22);
}

.download-form__button:hover {
  transform: translateY(-4px);
}

.download-form__button:hover {
  box-shadow: 0 24px 45px rgba(245, 158, 11, 0.22);
}

.download-form__note {
  margin: 0.2rem 0 0;
  color: #9aa7bd;
  font-size: 0.92rem;
  text-align: center;
}

.content-section {
  margin-top: 1.5rem;
  padding: 2rem;
  border-radius: 24px;
  background: #1b2537;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.section-heading {
  margin-bottom: 1.25rem;
}

.section-heading h2 {
  margin: 0.35rem 0 0;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: -0.04em;
}

.section-label {
  margin: 0;
  color: #fbbf24;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

.content-card {
  background: #202c40;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
  border-radius: 16px;
  padding: 1.25rem;
}

.content-card:hover {
  transform: translateY(-4px);
}

.content-card:hover {
  border-color: rgba(245, 158, 11, 0.35);
}

.content-card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
}

.content-card p {
  margin: 0;
  color: #9aa7bd;
  line-height: 1.7;
}

@media (max-width: 920px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: none;
  }

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

  .content-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .landing-page {
    width: min(100% - 1rem, 1160px);
    padding: 0.5rem 0 1.5rem;
  }

  .hero {
    min-height: auto;
    gap: 1rem;
  }

  .hero__content,
  .hero__panel {
    padding: 1.25rem;
    border-radius: 22px;
  }

  .preview-card__overlay {
    flex-direction: column;
    align-items: flex-start;
  }
}