body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
}

.main {
  display: flex;
  flex-direction: column;
  flex: 1 0 auto;
  min-height: 0;
}

.tool-container {
  max-width: 1100px;
  margin: 0;
  padding: 48px 24px;
  flex: 1 0 auto;
  align-self: center;
  width: 100%;
  display: flex;
  flex-direction: column;
}

.tool-hero {
  text-align: center;
  margin-bottom: 48px;
}

.tool-hero .section-subtitle {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.tool-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
  flex: 1 0 auto;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1 0 auto;
}

.form-group__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 44px;
}

.converter-input {
  width: 100%;
  resize: none;
  overflow: hidden;
  min-height: 200px;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.6;
  tab-size: 2;
  flex: 1 0 auto;
}

.converter-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px;
  background: var(--bg-surface);
  border: var(--border-thin);
  border-radius: 2px;
}

.converter-actions.is-fixed {
  position: fixed;
  top: 80px;
  right: max(24px, calc((100% - 1100px) / 2 + 24px));
  z-index: 90;
  border: var(--border-medium);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.4);
  animation: actions-pin-in 0.18s ease both;
}

@keyframes actions-pin-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.converter-actions .btn-primary,
.converter-actions .btn-secondary {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  font-size: 12px;
}

.converter-actions .btn-primary svg {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
}

@media (max-width: 768px) {
  .tool-container {
    padding: 24px 16px;
  }

  .form-group__header {
    flex-wrap: wrap;
    row-gap: 8px;
  }

  .converter-actions.is-fixed {
    top: 76px;
    right: 16px;
  }
}