.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  padding: 18px 0 0;
  transition: padding var(--transition-base);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  min-height: 78px;
  padding: 16px 22px;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.68);
  backdrop-filter: blur(22px);
  box-shadow: 0 20px 48px rgba(26, 39, 71, 0.08);
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.site-header--scrolled {
  padding-top: 10px;
}

.site-header--scrolled .site-header__inner {
  background: rgba(255, 255, 255, 0.82);
  border-color: rgba(15, 23, 42, 0.08);
  box-shadow: 0 18px 42px rgba(26, 39, 71, 0.1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand__mark {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background:
    linear-gradient(145deg, rgba(17, 24, 39, 0.96), rgba(39, 64, 132, 0.88)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.26),
    0 18px 30px rgba(20, 83, 255, 0.16);
  color: #ffffff;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.brand__mark--footer {
  width: 50px;
  height: 50px;
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.brand__text strong,
.site-footer__copy strong {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand__text span {
  color: var(--color-muted);
  font-size: 0.82rem;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 50px;
  padding: 8px 10px 8px 14px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.72),
    0 10px 24px rgba(26, 39, 71, 0.05);
}

.lang-switch__icon {
  width: 19px;
  height: 19px;
  stroke: rgba(17, 24, 39, 0.78);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
  flex: 0 0 auto;
}

.lang-switch__buttons {
  display: inline-flex;
  gap: 5px;
}

.lang-switch__button {
  min-width: 50px;
  height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  color: var(--color-muted);
  font-size: 0.9rem;
  font-weight: 600;
  transition:
    color var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.lang-switch__button:hover {
  color: var(--color-text);
}

.lang-switch__button.is-active {
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.94), rgba(33, 63, 144, 0.9));
  color: #ffffff;
  box-shadow: 0 10px 18px rgba(20, 83, 255, 0.16);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base),
    background var(--transition-base),
    color var(--transition-base);
}

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

.button--primary {
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.96), rgba(37, 61, 135, 0.92));
  box-shadow: 0 16px 28px rgba(20, 83, 255, 0.16);
  color: #ffffff;
}

.button--primary:hover {
  box-shadow: 0 22px 38px rgba(20, 83, 255, 0.2);
}

.button--secondary {
  border-color: rgba(15, 23, 42, 0.1);
  background: rgba(255, 255, 255, 0.76);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
  color: var(--color-text);
}

.button--secondary:hover {
  border-color: rgba(15, 23, 42, 0.16);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 16px 26px rgba(26, 39, 71, 0.08);
}

.button--wide {
  min-width: 220px;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 15px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  color: var(--color-muted);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 10px 22px rgba(26, 39, 71, 0.05);
}

.entry-card,
.value-card,
.guide-item,
.cta-banner {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(255, 255, 255, 0.68));
  backdrop-filter: blur(18px);
}

.entry-card,
.value-card {
  border-radius: 30px;
  box-shadow: var(--shadow-card);
}

.entry-card::before,
.value-card::before,
.guide-item::before,
.cta-banner::before,
.site-footer__inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.42), transparent 55%);
  pointer-events: none;
}

.entry-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 248px;
  padding: 28px;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.entry-card:hover {
  transform: translateY(-5px);
  border-color: rgba(20, 83, 255, 0.12);
  box-shadow: 0 24px 44px rgba(26, 39, 71, 0.11);
}

.entry-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.entry-card__index,
.value-card__index,
.guide-item__index {
  color: var(--color-soft);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

.entry-card__arrow,
.guide-item__arrow {
  color: var(--color-text);
  font-size: 1.1rem;
  transition: transform var(--transition-base), color var(--transition-base);
}

.entry-card:hover .entry-card__arrow,
.guide-item:hover .guide-item__arrow {
  transform: translateX(4px);
  color: var(--color-accent);
}

.entry-card h3,
.value-card h3,
.guide-item h3,
.cta-banner h2 {
  letter-spacing: -0.03em;
}

.entry-card h3 {
  font-size: 1.38rem;
  line-height: 1.2;
}

.entry-card p,
.value-card p,
.guide-item p,
.cta-banner p,
.site-footer__copy p,
.site-footer__meta {
  color: var(--color-muted);
}

.entry-card__hint {
  margin-top: auto;
  color: var(--color-text);
  font-size: 0.94rem;
  font-weight: 600;
}

.value-card {
  min-height: 236px;
  padding: 28px;
}

.value-card h3 {
  margin-top: 34px;
  font-size: 1.24rem;
}

.value-card p {
  margin-top: 14px;
}

.guide-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 26px 28px;
  border-radius: 26px;
  box-shadow: 0 16px 34px rgba(26, 39, 71, 0.07);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.guide-item:hover {
  transform: translateY(-4px);
  border-color: rgba(20, 83, 255, 0.12);
  box-shadow: 0 22px 40px rgba(26, 39, 71, 0.1);
}

.guide-item__body h3 {
  font-size: 1.2rem;
}

.guide-item__body p {
  margin-top: 8px;
}

.cta-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 42px 44px;
  border-radius: 40px;
  background:
    radial-gradient(circle at 12% 18%, rgba(119, 164, 255, 0.16), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(247, 249, 255, 0.78));
  box-shadow: 0 26px 58px rgba(26, 39, 71, 0.09);
}

.cta-banner__copy h2 {
  margin-top: 18px;
  font-size: clamp(2rem, 3.3vw, 2.95rem);
  line-height: 1.1;
}

.cta-banner__copy p {
  margin-top: 14px;
  max-width: 620px;
}

.cta-banner .button {
  min-height: 60px;
  padding-inline: 32px;
  box-shadow: 0 18px 32px rgba(20, 83, 255, 0.16);
}

.site-footer {
  padding: 34px 0 56px;
}

.site-footer__inner {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  padding: 34px 36px;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 34px;
  background:
    radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.4), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(255, 255, 255, 0.62));
  backdrop-filter: blur(18px);
  box-shadow: 0 22px 46px rgba(26, 39, 71, 0.06);
}

.site-footer__brand {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.site-footer__copy p {
  margin-top: 8px;
  max-width: 540px;
}

.site-footer__meta {
  max-width: 360px;
  padding-top: 4px;
  text-align: right;
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .site-header {
    padding-top: 14px;
  }

  .site-header__inner {
    min-height: 72px;
    padding: 12px 14px;
    border-radius: 24px;
  }

  .brand__text span {
    display: none;
  }

  .lang-switch {
    gap: 8px;
    min-height: 46px;
    padding-left: 10px;
  }

  .lang-switch__button {
    min-width: 44px;
    height: 38px;
    padding: 0 14px;
  }

  .button,
  .button--wide {
    width: 100%;
  }

  .entry-card,
  .value-card {
    padding: 24px;
  }

  .guide-item {
    padding: 22px 22px;
    border-radius: 22px;
  }

  .cta-banner {
    flex-direction: column;
    align-items: stretch;
    padding: 30px 26px;
    border-radius: 30px;
  }

  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 26px 22px;
    border-radius: 28px;
  }

  .site-footer__meta {
    max-width: none;
    text-align: left;
  }
}

@media (max-width: 680px) {
  .guide-item {
    grid-template-columns: 1fr auto;
    align-items: flex-start;
  }

  .guide-item__index {
    grid-column: 1 / -1;
  }
}