.inside-collapse {
  margin: 0.8rem 0 1.2rem;
  padding-top: 0.2rem;
  border-bottom: 1px dashed var(--inside-border-color);
}

.inside-collapse:last-of-type {
  border-bottom: 0;
}

.inside-collapse > summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0.15rem 0 0.55rem;
  font-family: var(--inside-font-label);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.inside-collapse[open] > summary {
  color: var(--inside-accent-color);
}

.inside-collapse > summary + div > ul {
  margin: 0;
}

.inside-collapse > summary + div > ul > li {
  margin: 0.45rem 0;
}

/* Sidebar layout fix: keep 100vh and let inner content scroll naturally */
is-k {
  top: 0;
  bottom: auto;
  height: 100vh;
  height: 100dvh;
}

is-k .φdg {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  box-sizing: border-box;
}

is-k .φdh {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

is-k .φdb,
is-k .φdb.φdc {
  position: static;
  right: auto;
  left: auto;
  bottom: auto;
  margin-top: auto;
}

/* Adaptive spacing for sidebar blocks */
is-k .φcv {
  margin: clamp(0.65rem, 1.8vh, 1rem);
  padding-top: clamp(1.2rem, 3vh, 2.4rem);
}

is-k .φdl {
  margin: 0 clamp(0.65rem, 1.8vh, 1rem);
  padding: 0 clamp(0.65rem, 1.8vh, 1rem);
}

is-k .φdi {
  margin: clamp(1.1rem, 3vh, 2rem) 0 clamp(1.4rem, 3.6vh, 3rem);
}

is-k .φdb {
  padding-top: clamp(0.45rem, 1.2vh, 1rem);
}

/* compact mode for short laptop screens */
@media (min-width: 676px) and (max-height: 860px) {
  is-k .φcv {
    margin: 0.65rem;
    padding-top: 1rem;
  }

  is-k .φcx {
    width: 7.1rem;
    height: 7.1rem;
  }

  is-k .φcz {
    margin: 1rem 1.2rem 0.8rem;
    font-size: 1.55rem;
  }

  is-k .φcy {
    padding: 0 1.2rem 1rem;
    font-size: 0.95rem;
  }

  is-k .φdm {
    padding: 0.85rem 0;
  }

  is-k .φdi {
    margin: 1rem 0 1.3rem;
  }

  is-k .φdj {
    line-height: 2.55rem;
  }
}

@media (max-width: 675px) {
  is-k,
  is-k .φdg {
    height: 100vh;
    height: 100dvh;
  }

  is-k .φdg {
    padding-bottom: env(safe-area-inset-bottom);
  }

  is-k .φcv {
    margin: 0;
    padding-top: clamp(1rem, 2.4vh, 1.5rem);
    border-radius: 0;
  }

  is-k .φcx {
    width: clamp(6.6rem, 17vw, 8rem);
    height: clamp(6.6rem, 17vw, 8rem);
  }

  is-k .φcz {
    margin: 1rem 1rem 0.65rem;
    font-size: clamp(1.35rem, 5vw, 1.75rem);
  }

  is-k .φcy {
    padding: 0 1rem 1rem;
    font-size: 0.95rem;
  }

  is-k .φdl {
    margin: 0;
    padding: 0 0.7rem;
  }

  is-k .φdm {
    padding: 0.85rem 0;
  }

  is-k .φdi {
    margin: 0.85rem 0 1.2rem;
  }

  is-k .φdj {
    line-height: 2.7rem;
  }

  is-k .φdb .φde {
    margin-bottom: 0.75rem;
  }

  is-k .φdb {
    padding-bottom: calc(0.75rem + env(safe-area-inset-bottom));
  }
}