:root {
  --ptn-ink: #43656a;
  --ptn-paper: #fff9f4;
  --ptn-mint: #b8e2db;
  --ptn-coral: #f3a38e;
  --ptn-sky: #cbe6f1;
}

.pputroll-tool-nav {
  position: relative;
  z-index: 1000;
  display: flex;
  min-height: 72px;
  align-items: stretch;
  justify-content: space-between;
  gap: 24px;
  padding: 0 clamp(16px, 4vw, 56px);
  border-bottom: 1px solid rgba(67, 101, 106, 0.14);
  background:
    radial-gradient(circle at 8% 0, rgba(255, 255, 255, 0.82), transparent 22%),
    linear-gradient(105deg, var(--ptn-mint), #e7f3ed 45%, var(--ptn-sky));
  color: var(--ptn-ink);
  font-family: "Pretendard Variable", Pretendard, SUIT, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

.pputroll-tool-nav a {
  text-decoration: none;
}

.ptn-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--ptn-ink);
  font-family: "Pretendard Variable", Pretendard, SUIT, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", "Segoe UI", sans-serif;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.09em;
  white-space: nowrap;
}

.ptn-brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(67, 101, 106, 0.14);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.78);
  color: var(--ptn-ink);
  box-shadow: 0 5px 14px rgba(67, 101, 106, 0.12);
  overflow: hidden;
}

.ptn-brand-mark img {
  display: block;
  width: 25px;
  height: 25px;
  object-fit: contain;
}

.ptn-categories {
  display: flex;
  align-items: stretch;
}

.ptn-category {
  position: relative;
  display: flex;
  min-width: clamp(150px, 17vw, 210px);
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: rgba(67, 101, 106, 0.68);
  transition: color 160ms ease, background 160ms ease;
}

.ptn-category::after {
  position: absolute;
  right: 20px;
  bottom: 0;
  left: 20px;
  height: 3px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--ptn-coral);
  content: "";
  transition: transform 180ms ease;
}

.ptn-category:hover,
.ptn-category.is-active {
  background: rgba(255, 255, 255, 0.42);
  color: #304f54;
}

.ptn-category.is-active::after {
  transform: scaleX(1);
}

.ptn-category > span:last-child {
  display: grid;
  gap: 4px;
}

.ptn-category strong {
  font-family: inherit;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.045em;
}

.ptn-category small {
  font-size: 10px;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.02em;
  opacity: 0.76;
}

.ptn-number {
  color: #4f9692;
  font: 800 9px/1 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.04em;
}

@media (max-width: 760px) {
  .pputroll-tool-nav {
    min-height: 62px;
    gap: 8px;
    padding: 0 10px;
  }

  .ptn-brand > span:last-child {
    display: none;
  }

  .ptn-categories {
    flex: 1;
  }

  .ptn-category {
    min-width: 0;
    flex: 1;
    justify-content: center;
    padding: 9px 8px;
  }

  .ptn-category small,
  .ptn-number {
    display: none;
  }

  .ptn-category strong {
    font-size: 12px;
  }
}