/* ============================================================
   랜덤 닉네임 생성기 전용 스타일
   - 이 도구의 컨셉: "이름표를 뽑아 벽에 붙여두는 판"
     결과 하나하나가 떼어 쓰는 이름표처럼 보이게 하고,
     단어 조각은 눌러서 고정할 수 있다는 걸 밑줄로 드러낸다.
   - 색·간격 토큰은 common.css 를 그대로 쓴다(사이트 톤 유지)
   ============================================================ */

/* ---- 도입부 (다른 도구와 같은 골격) ---- */
.tool-intro {
  position: relative;
  padding: var(--space-6) 0 var(--space-5);
  margin-bottom: var(--space-5);
  overflow: hidden;
}
/* 이 도구만의 배경 모티프: 이름을 적어 넣는 명단지의 가로 괘선 */
.tool-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--color-grid) 1px, transparent 1px);
  background-size: 100% 30px;
  opacity: .4;
  -webkit-mask-image: linear-gradient(105deg, rgba(0,0,0,.55), transparent 60%);
          mask-image: linear-gradient(105deg, rgba(0,0,0,.55), transparent 60%);
  pointer-events: none;
}
.tool-intro > * { position: relative; }
.tool-intro h1 {
  margin: 0 0 var(--space-3);
  max-width: 18ch;
  font-size: clamp(2.1rem, 5vw, 3.1rem);
  line-height: 1.18;
  letter-spacing: -.02em;
}
.lead {
  color: var(--color-text-sub);
  margin: var(--space-2) 0;
  max-width: 58ch;
  font-size: 1.02rem;
}
.lead-note {
  color: var(--color-text-sub);
  font-size: .85rem;
  opacity: .85;
  margin: 0;
}

.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;
}

/* ============================================================
   조작판
   ============================================================ */
.nk-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-5) var(--space-5);
  box-shadow: var(--shadow-sm);
}
.nk-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px dashed var(--color-border);
}
.nk-row:last-of-type { border-bottom: 0; }
.nk-rowlabel {
  flex: none;
  width: 68px;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--color-text-sub);
  padding-top: 5px;
}
.nk-rowbody {
  flex: 1 1 260px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
}

/* ---- 칩 ---- */
.nk-chip {
  font: inherit;
  font-size: .88rem;
  line-height: 1;
  cursor: pointer;
  padding: 8px 13px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg);
  color: var(--color-text-sub);
  transition: border-color .15s ease, color .15s ease, background .15s ease;
}
.nk-chip:hover { border-color: var(--color-primary); color: var(--color-text); }
.nk-chip.is-on {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  font-weight: 700;
}
.nk-chip-sm { font-size: .8rem; padding: 6px 11px; }
.nk-chip-group {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 5px;
  margin-right: var(--space-3);
}
.nk-chip-glabel {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--color-text-sub);
  margin-right: 2px;
}

/* ---- 셀렉트·체크박스 ---- */
.nk-field {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .88rem;
  color: var(--color-text-sub);
}
.nk-field select {
  font: inherit;
  font-size: .88rem;
  padding: 6px 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
}
.nk-check {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .88rem;
  color: var(--color-text-sub);
  cursor: pointer;
}
.nk-check input { accent-color: var(--color-primary); width: 15px; height: 15px; }

/* ---- 실행 줄 ---- */
.nk-run {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}
.nk-roll {
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  padding: 11px 26px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
}
.nk-roll:hover { filter: brightness(1.06); }
.nk-roll:active { transform: translateY(1px); }
.nk-combo {
  font-size: .82rem;
  color: var(--color-text-sub);
  font-variant-numeric: tabular-nums;
}
.nk-kbd {
  font-size: .78rem;
  color: var(--color-text-sub);
  margin-left: auto;
}
.nk-kbd b {
  font-weight: 600;
  border: 1px solid var(--color-border);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 7px;
  background: var(--color-bg);
}

/* ============================================================
   고정한 자리
   ============================================================ */
.nk-locks {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-primary);
  border-left-width: 3px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-weak);
}
.nk-locks-label {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--color-primary);
}
.nk-lockchip {
  font: inherit;
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px 5px 12px;
  border: 1px solid var(--color-primary);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-text);
}
.nk-lockchip:hover { background: var(--color-primary); color: #fff; }
.nk-lockx { opacity: .6; font-size: .85em; }
.nk-lockclear {
  font: inherit;
  font-size: .8rem;
  cursor: pointer;
  border: 0;
  background: none;
  color: var(--color-primary);
  text-decoration: underline;
  margin-left: auto;
  padding: 4px;
}

/* ============================================================
   결과 이름표
   ============================================================ */
.nk-results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(272px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.nk-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  padding: var(--space-3) var(--space-3) var(--space-3) var(--space-4);
  position: relative;
}
/* 이름표를 매달아 둔 것처럼 왼쪽에 얇은 레일 */
.nk-card::before {
  content: "";
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--color-border);
  border-radius: 2px;
}
.nk-card:hover::before { background: var(--color-primary); }
.nk-body { flex: 1 1 auto; min-width: 0; }

.nk-word {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  font-size: 1.24rem;
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.35;
  word-break: break-all;
}
/* 단어 조각: 눌러서 그 자리를 고정한다는 걸 점선 밑줄로 알린다 */
.nk-seg {
  font: inherit;
  cursor: pointer;
  border: 0;
  padding: 0 1px;
  background: none;
  color: var(--color-text);
  border-bottom: 2px dotted transparent;
  transition: border-color .12s ease, color .12s ease;
}
.nk-seg:hover { border-bottom-color: var(--color-primary); color: var(--color-primary); }
.nk-seg.is-locked {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
}
/* 뒤에 붙인 숫자는 고정 대상이 아니라 눌러도 반응하지 않는다 */
.nk-seg-num {
  cursor: default;
  color: var(--color-text-sub);
  font-variant-numeric: tabular-nums;
}

.nk-sub {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px 10px;
  margin-top: 6px;
}
.nk-rom, .nk-keys {
  font-size: .78rem;
  color: var(--color-text-sub);
  font-family: var(--font-mono, ui-monospace, "SFMono-Regular", "Menlo", "Consolas", monospace);
  word-break: break-all;
}
.nk-keys::before {
  content: "영타";
  font-family: var(--font-sans);
  font-size: .68rem;
  letter-spacing: .06em;
  opacity: .7;
  margin-right: 4px;
}
.nk-badges { display: flex; flex-wrap: wrap; gap: 4px; }

/* 통과는 채운 알약, 불가는 점선 테두리 + 이유.
   색뿐 아니라 테두리 모양으로도 구분되게 해서 색각 이상에서도 읽힌다 */
.nk-badge {
  font-size: .7rem;
  line-height: 1;
  padding: 4px 7px;
  border-radius: 3px;
  white-space: nowrap;
}
.nk-badge.is-ok {
  background: var(--color-primary-weak);
  color: var(--color-primary);
  border: 1px solid transparent;
  font-weight: 700;
}
.nk-badge.is-no {
  background: transparent;
  color: var(--color-text-sub);
  border: 1px dashed var(--color-border);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

.nk-tools { display: flex; flex-direction: column; gap: 4px; flex: none; }
.nk-btn-s {
  font: inherit;
  font-size: .76rem;
  cursor: pointer;
  padding: 5px 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text-sub);
}
.nk-btn-s:hover { border-color: var(--color-primary); color: var(--color-primary); }

.nk-empty {
  margin-top: var(--space-4);
  padding: var(--space-4);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-sub);
  font-size: .9rem;
  text-align: center;
}

/* ============================================================
   보관함
   ============================================================ */
.nk-keep {
  margin-top: var(--space-5);
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}
.nk-keep-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
}
.nk-keep-head h2 {
  margin: 0;
  font-size: 1.05rem;
  font-family: var(--font-sans);
  font-weight: 700;
}
.nk-keep-head .nk-keep-act { margin-left: auto; display: flex; gap: 6px; }
.nk-keep-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.nk-keep-list li {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg);
}
.nk-keepitem {
  font: inherit;
  font-size: .9rem;
  cursor: pointer;
  border: 0;
  background: none;
  color: var(--color-text);
  padding: 6px 4px 6px 11px;
}
.nk-keepitem:hover { color: var(--color-primary); }
.nk-keepdel {
  font: inherit;
  font-size: .78rem;
  cursor: pointer;
  border: 0;
  background: none;
  color: var(--color-text-sub);
  padding: 6px 9px 6px 5px;
  opacity: .6;
}
.nk-keepdel:hover { opacity: 1; color: var(--color-primary); }

/* ---- 플랫폼 안내 문구 ---- */
.nk-notice {
  margin: var(--space-3) 0 0;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--color-text-sub);
}

/* ---- 토스트 ---- */
.nk-toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translate(-50%, 12px);
  z-index: 50;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--color-text);
  color: var(--color-bg);
  font-size: .88rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
  max-width: 88vw;
  text-align: center;
}
.nk-toast.is-on { opacity: 1; transform: translate(-50%, 0); }

@media (prefers-reduced-motion: reduce) {
  .nk-chip, .nk-seg, .nk-toast { transition: none; }
}

/* ============================================================
   본문(사용법·FAQ): 다른 도구와 동일 골격
   ============================================================ */
.prose { margin-top: var(--space-6); }
.prose h2 { margin-bottom: var(--space-3); }
.prose h3 { margin: var(--space-4) 0 var(--space-2); font-size: 1.05rem; }
.prose p, .prose li { color: var(--color-text); }
.prose em { color: var(--color-primary); font-style: normal; font-weight: 600; }
.prose ol, .prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: var(--space-2); }
.prose details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-2);
}
.prose summary { cursor: pointer; font-weight: 600; }
.prose summary::marker { color: var(--color-primary); }
.prose details p { margin: var(--space-2) 0 0; }

@media (max-width: 560px) {
  .nk-rowlabel { width: 100%; padding-top: 0; }
  .nk-results { grid-template-columns: 1fr; }
  .nk-kbd { display: none; }
}