/* ==========================================================================
   NatureFractal — Components (엔지니어링 톤)
   ========================================================================== */

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nf-nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--nf-z-nav);
  height: var(--nf-nav-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--nf-bg) 78%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--nf-dur) var(--nf-ease),
              background var(--nf-dur) var(--nf-ease);
}
.nf-nav.is-scrolled {
  background: color-mix(in srgb, var(--nf-bg) 92%, transparent);
  border-bottom-color: var(--nf-line);
}

.nf-nav__inner {
  width: 100%;
  max-width: var(--nf-container-wide);
  margin-inline: auto;
  padding-inline: var(--nf-gutter);
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nf-brand {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 600;
  font-size: .9375rem;
  letter-spacing: -.015em;
  color: var(--nf-ink-strong);
  white-space: nowrap;
}
.nf-brand__mark { width: 20px; height: 20px; flex: 0 0 20px; }
.nf-brand__sub {
  font-family: var(--nf-font-mono);
  font-size: .6875rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--nf-ink-subtle);
  padding: .1rem .32rem;
  border: 1px solid var(--nf-line-strong);
  border-radius: var(--nf-r-xs);
  margin-left: .15rem;
}

.nf-nav__menu { display: flex; align-items: center; gap: .1rem; margin-left: auto; }
.nf-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .4rem .7rem;
  font-size: .875rem;
  font-weight: 450;
  color: var(--nf-ink-muted);
  border-radius: var(--nf-r-sm);
  white-space: nowrap;
}
.nf-nav__link:hover { color: var(--nf-ink-strong); background: var(--nf-bg-elevated); }
.nf-nav__link.is-active { color: var(--nf-ink-strong); }
.nf-nav__caret { width: 9px; height: 9px; opacity: .5; transition: transform var(--nf-dur-fast) var(--nf-ease); }
.nf-nav__item { position: relative; }
.nf-nav__item:hover .nf-nav__caret, .nf-nav__item:focus-within .nf-nav__caret { transform: rotate(180deg); }

/* 위치만 잡는 투명 래퍼.
   top:100% 로 트리거에 딱 붙여 마우스가 지나갈 빈 공간을 없앱니다.
   (틈이 있으면 그 위를 지나는 순간 :hover 가 끊겨 하위 항목을 클릭할 수 없습니다)
   시각적 여백은 이 래퍼의 padding-top 이 만듭니다. */
.nf-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  min-width: 420px;
  padding-top: 8px;
  opacity: 0; visibility: hidden; pointer-events: none;
  /* 닫힐 때만 260ms 유예를 둡니다(hover intent).
     트리거는 72px, 패널은 420px 이라 대각선으로 이동하면 트리거 폭을 먼저 벗어납니다.
     이 유예가 없으면 왼쪽/오른쪽 항목으로 가는 도중 메뉴가 닫혀 클릭할 수 없습니다. */
  transition: opacity var(--nf-dur) var(--nf-ease) 400ms,
              transform var(--nf-dur) var(--nf-ease) 400ms,
              visibility var(--nf-dur) 400ms;
}
.nf-dropdown__panel {
  padding: .3rem;
  background: var(--nf-bg-elevated);
  border: 1px solid var(--nf-line-strong);
  border-radius: var(--nf-r-md);
  box-shadow: var(--nf-shadow-lg);
}
.nf-nav__item:hover .nf-dropdown,
.nf-nav__item:focus-within .nf-dropdown,
.nf-nav__item.is-open .nf-dropdown {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: translateX(-50%) translateY(0);
  transition-delay: 0s;   /* 열 때는 즉시 */
}

/* Escape 로 닫은 상태 — 트리거에 포커스가 남아 있어도 다시 열리지 않습니다.
   (위 :focus-within 규칙과 명시도가 같으므로 반드시 뒤에 와야 합니다) */
.nf-nav__item.is-dismissed .nf-dropdown {
  opacity: 0; visibility: hidden; pointer-events: none;
  transition-delay: 0s;
}

.nf-dropdown__link {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: .7rem;
  align-items: start;
  padding: .55rem .6rem;
  border-radius: var(--nf-r-sm);
  transition: background var(--nf-dur-fast) var(--nf-ease-out);
}
.nf-dropdown__link:hover { background: var(--nf-bg-raised); }
.nf-dropdown__icon {
  width: 28px; height: 28px;
  display: grid; place-items: center;
  border: 1px solid var(--nf-line);
  border-radius: var(--nf-r-sm);
  color: var(--nf-accent);
  background: var(--nf-bg);
}
.nf-dropdown__icon svg { width: 15px; height: 15px; }
.nf-dropdown__title { font-size: .875rem; font-weight: 550; color: var(--nf-ink-strong); line-height: 1.4; }
.nf-dropdown__desc {
  font-family: var(--nf-font-mono); font-size: .6875rem; letter-spacing: .04em;
  color: var(--nf-ink-subtle); margin-top: .12rem;
}

.nf-nav__toggle { display: none; width: 34px; height: 34px; margin-left: auto; border-radius: var(--nf-r-sm); place-items: center; }
.nf-nav__toggle span {
  display: block; width: 16px; height: 1.5px; border-radius: 1px;
  background: var(--nf-ink);
  transition: transform var(--nf-dur) var(--nf-ease), opacity var(--nf-dur-fast) var(--nf-ease);
}
.nf-nav__toggle span + span { margin-top: 4.5px; }
.nf-nav__toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nf-nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nf-nav__toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nf-drawer {
  position: fixed; inset: var(--nf-nav-h) 0 0 0; z-index: var(--nf-z-drawer);
  background: var(--nf-bg);
  padding: 1.25rem var(--nf-gutter) 3rem;
  overflow-y: auto;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity var(--nf-dur) var(--nf-ease), transform var(--nf-dur) var(--nf-ease), visibility var(--nf-dur);
}
.nf-drawer.is-open { opacity: 1; visibility: visible; transform: none; }
.nf-drawer__link {
  display: flex; align-items: center; justify-content: space-between;
  padding: .95rem .1rem;
  font-size: 1.125rem; font-weight: 550; letter-spacing: -.02em;
  color: var(--nf-ink-strong);
  border-bottom: 1px solid var(--nf-line);
}
.nf-drawer__link svg { width: 14px; height: 14px; opacity: .3; }
.nf-drawer__sub {
  display: flex; align-items: center; gap: .5rem;
  padding: .5rem .1rem .5rem .9rem;
  font-size: .875rem; color: var(--nf-ink-muted);
  border-left: 1px solid var(--nf-line); margin-left: .2rem;
}
.nf-drawer__cta { margin-top: 1.75rem; }

@media (max-width: 1023px) {
  .nf-nav__menu { display: none; }
  .nf-nav__toggle { display: grid; }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.nf-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .55rem 1.05rem;
  font-size: .875rem;
  font-weight: 550;
  letter-spacing: -.008em;
  line-height: 1.3;
  color: var(--nf-ink-strong);
  background: var(--nf-bg-elevated);
  border: 1px solid var(--nf-line-strong);
  border-radius: var(--nf-r-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--nf-dur-fast) var(--nf-ease-out),
              border-color var(--nf-dur-fast) var(--nf-ease-out),
              color var(--nf-dur-fast) var(--nf-ease-out),
              opacity var(--nf-dur-fast) var(--nf-ease-out);
}
.nf-btn:hover { background: var(--nf-bg-raised); border-color: var(--nf-line-bright); }
.nf-btn:active { transform: translateY(.5px); }
.nf-btn:disabled, .nf-btn.is-disabled { opacity: .45; pointer-events: none; }
.nf-btn svg { width: 14px; height: 14px; flex: 0 0 auto; }

.nf-btn--primary {
  color: #fff;
  background: var(--nf-accent);
  border-color: var(--nf-accent);
  box-shadow: 0 1px 0 rgba(255,255,255,.14) inset;
}
.nf-btn--primary:hover { background: var(--nf-accent-hi); border-color: var(--nf-accent-hi); }

.nf-btn--solid {
  color: var(--nf-ink-inverse);
  background: var(--nf-ink-strong);
  border-color: var(--nf-ink-strong);
}
.nf-btn--solid:hover { opacity: .88; background: var(--nf-ink-strong); }

.nf-btn--quiet { background: transparent; border-color: transparent; color: var(--nf-ink-muted); }
.nf-btn--quiet:hover { background: var(--nf-bg-elevated); color: var(--nf-ink-strong); border-color: var(--nf-line); }

.nf-btn--lg { padding: .72rem 1.4rem; font-size: .9375rem; }
.nf-btn--sm { padding: .4rem .8rem; font-size: .8125rem; }
.nf-btn--block { width: 100%; }

.nf-spinner {
  display: inline-block; width: 12px; height: 12px;
  border: 1.5px solid currentColor; border-right-color: transparent;
  border-radius: 50%; animation: nf-spin .6s linear infinite; vertical-align: -1px;
}
@keyframes nf-spin { to { transform: rotate(360deg); } }

/* 텍스트 링크 */
.nf-link {
  display: inline-flex; align-items: center; gap: .35rem;
  font-size: .875rem; font-weight: 500;
  color: var(--nf-accent);
}
.nf-link svg { width: 13px; height: 13px; transition: transform var(--nf-dur) var(--nf-ease); }
.nf-link:hover { color: var(--nf-accent-hi); }
.nf-link:hover svg { transform: translateX(2px); }
.nf-link--ink { color: var(--nf-ink-strong); }
.nf-link--ink:hover { color: var(--nf-accent); }

/* --------------------------------------------------------------------------
   Mono label / Badge / Chip
   -------------------------------------------------------------------------- */
.nf-label {
  display: inline-flex; align-items: center; gap: .45rem;
  font-family: var(--nf-font-mono);
  font-size: var(--nf-fs-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--nf-ink-subtle);
  margin-bottom: .9rem;
}
.nf-label::before {
  content: '';
  width: 16px; height: 1px;
  background: var(--nf-accent);
}
.nf-label--plain::before { display: none; }
.nf-label--center { justify-content: center; }

.nf-badge {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .18rem .5rem;
  font-family: var(--nf-font-mono);
  font-size: .6875rem; letter-spacing: .04em;
  color: var(--nf-ink-muted);
  background: var(--nf-bg-elevated);
  border: 1px solid var(--nf-line);
  border-radius: var(--nf-r-xs);
  white-space: nowrap;
}
.nf-badge--accent { color: var(--nf-accent); border-color: var(--nf-accent-line); background: var(--nf-accent-soft); }
.nf-badge--good   { color: var(--nf-sig-good); border-color: color-mix(in srgb, var(--nf-sig-good) 32%, transparent); }
.nf-badge--warn   { color: var(--nf-sig-warn); border-color: color-mix(in srgb, var(--nf-sig-warn) 32%, transparent); }
.nf-badge--bad    { color: var(--nf-sig-bad);  border-color: color-mix(in srgb, var(--nf-sig-bad) 32%, transparent); }

.nf-dot {
  width: 5px; height: 5px; border-radius: 50%; background: currentColor;
  box-shadow: 0 0 0 0 currentColor;
  animation: nf-ping 2.6s var(--nf-ease-out) infinite;
}
@keyframes nf-ping {
  0%   { box-shadow: 0 0 0 0 currentColor; opacity: 1; }
  70%  { box-shadow: 0 0 0 5px transparent; opacity: .85; }
  100% { box-shadow: 0 0 0 0 transparent; opacity: 1; }
}

.nf-chip {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .3rem .65rem;
  font-size: .8125rem; font-weight: 450;
  color: var(--nf-ink-muted);
  background: transparent;
  border: 1px solid var(--nf-line);
  border-radius: var(--nf-r-sm);
  transition: all var(--nf-dur-fast) var(--nf-ease-out);
}
a.nf-chip:hover { color: var(--nf-ink-strong); border-color: var(--nf-line-bright); background: var(--nf-bg-elevated); }
.nf-chip.is-active { color: var(--nf-ink-inverse); background: var(--nf-ink-strong); border-color: var(--nf-ink-strong); }

/* 기술 태그 */
.nf-tag {
  font-family: var(--nf-font-mono);
  font-size: .6875rem; letter-spacing: .03em;
  color: var(--nf-ink-subtle);
  padding: .14rem .4rem;
  border: 1px solid var(--nf-line);
  border-radius: 3px;
}

/* --------------------------------------------------------------------------
   Section head
   -------------------------------------------------------------------------- */
.nf-sec-head { margin-bottom: clamp(32px, 4vw, 56px); max-width: 68ch; }
.nf-sec-head--center { text-align: center; margin-inline: auto; }
.nf-sec-head__title { font-size: var(--nf-fs-h2); margin-bottom: .7rem; }
.nf-sec-head__desc { font-size: var(--nf-fs-lead); color: var(--nf-ink-muted); line-height: 1.6; }
.nf-sec-head--split {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 2rem; flex-wrap: wrap; max-width: none;
}
.nf-sec-head--split > div:first-child { max-width: 56ch; }

/* --------------------------------------------------------------------------
   Card — 기본은 1px 테두리 셀
   -------------------------------------------------------------------------- */
.nf-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 2.2vw, 28px);
  background: var(--nf-bg-elevated);
  border: 1px solid var(--nf-line);
  border-radius: var(--nf-r-md);
  transition: border-color var(--nf-dur) var(--nf-ease), background var(--nf-dur) var(--nf-ease);
}
.nf-card--hover:hover { border-color: var(--nf-line-strong); background: var(--nf-bg-raised); }
.nf-card--pad-lg { padding: clamp(26px, 3vw, 40px); }
.nf-card__title { font-size: 1rem; font-weight: 580; margin-bottom: .45rem; letter-spacing: -.015em; }
.nf-card__desc  { color: var(--nf-ink-muted); font-size: .875rem; line-height: 1.65; }
.nf-card__foot  { margin-top: auto; padding-top: 1.1rem; }

/* 테두리 격자 — 카드 사이 간격 없이 1px 선으로만 구분 */
.nf-cells {
  display: grid;
  gap: 1px;
  background: var(--nf-line);
  border: 1px solid var(--nf-line);
  border-radius: var(--nf-r-md);
  overflow: hidden;
}
.nf-cells--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.nf-cells--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.nf-cells--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.nf-cells--auto { grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr)); }
.nf-cell {
  position: relative;
  display: flex; flex-direction: column;
  padding: clamp(20px, 2.2vw, 30px);
  background: var(--nf-bg);
  transition: background var(--nf-dur) var(--nf-ease);
}
.nf-cell:hover { background: var(--nf-bg-elevated); }
.nf-cell__index {
  font-family: var(--nf-font-mono); font-size: .6875rem; letter-spacing: .08em;
  color: var(--nf-ink-subtle); margin-bottom: 1rem;
}
.nf-cell__title { font-size: .9688rem; font-weight: 570; margin-bottom: .4rem; letter-spacing: -.015em; }
.nf-cell__desc  { font-size: .875rem; color: var(--nf-ink-muted); line-height: 1.65; }
.nf-cell__foot  { margin-top: auto; padding-top: 1.1rem; }

/* 항목 수가 열 수로 나누어떨어지지 않을 때 마지막 셀이 남은 칸을 채웁니다.
   (빈 트랙이 그대로 노출되면 구멍처럼 보입니다) */
.nf-cells--2 > .nf-cell:last-child:nth-child(2n + 1) { grid-column: 1 / -1; }
.nf-cells--3 > .nf-cell:last-child:nth-child(3n + 1) { grid-column: 1 / -1; }
.nf-cells--3 > .nf-cell:last-child:nth-child(3n + 2) { grid-column: span 2; }
.nf-cells--4 > .nf-cell:last-child:nth-child(4n + 1) { grid-column: 1 / -1; }
.nf-cells--4 > .nf-cell:last-child:nth-child(4n + 2) { grid-column: span 3; }
.nf-cells--4 > .nf-cell:last-child:nth-child(4n + 3) { grid-column: span 2; }
@media (max-width: 1023px) {
  .nf-cells--4 > .nf-cell:last-child:nth-child(4n + 2),
  .nf-cells--4 > .nf-cell:last-child:nth-child(4n + 3),
  .nf-cells--3 > .nf-cell:last-child:nth-child(3n + 2) { grid-column: auto; }
  .nf-cells--3 > .nf-cell:last-child:nth-child(2n + 1),
  .nf-cells--4 > .nf-cell:last-child:nth-child(2n + 1) { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .nf-cells > .nf-cell:last-child { grid-column: auto; }
}

/* 아이콘 */
.nf-ico {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  margin-bottom: 1rem;
  border: 1px solid var(--nf-line-strong);
  border-radius: var(--nf-r-sm);
  color: var(--nf-accent);
  background: var(--nf-bg-elevated);
}
.nf-ico svg { width: 17px; height: 17px; }
.nf-ico--sm { width: 26px; height: 26px; border-radius: var(--nf-r-xs); }
.nf-ico--sm svg { width: 13px; height: 13px; }

.nf-checklist { display: flex; flex-direction: column; gap: .45rem; }
.nf-checklist li {
  display: flex; gap: .5rem; align-items: flex-start;
  font-size: .875rem; color: var(--nf-ink-muted); line-height: 1.6;
}
.nf-checklist svg { flex: 0 0 14px; width: 14px; height: 14px; margin-top: .3em; color: var(--nf-accent); }

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */
.nf-field { display: flex; flex-direction: column; gap: .35rem; }
.nf-label-text {
  font-family: var(--nf-font-mono); font-size: .6875rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--nf-ink-subtle);
  display: flex; align-items: center; gap: .3rem;
}
.nf-label-text .req { color: var(--nf-sig-bad); }
.nf-hint { font-size: .8125rem; color: var(--nf-ink-subtle); }

.nf-input, .nf-select, .nf-textarea {
  width: 100%;
  padding: .6rem .75rem;
  font-size: .9375rem;
  color: var(--nf-ink);
  background: var(--nf-bg-elevated);
  border: 1px solid var(--nf-line-strong);
  border-radius: var(--nf-r-sm);
  transition: border-color var(--nf-dur-fast) var(--nf-ease-out), box-shadow var(--nf-dur-fast) var(--nf-ease-out);
  appearance: none;
}
.nf-textarea { resize: vertical; min-height: 140px; line-height: 1.62; }
.nf-input::placeholder, .nf-textarea::placeholder { color: var(--nf-ink-subtle); }
.nf-input:focus, .nf-select:focus, .nf-textarea:focus {
  outline: none;
  border-color: var(--nf-accent);
  box-shadow: 0 0 0 3px var(--nf-accent-soft);
}
.nf-input:disabled, .nf-textarea:disabled, .nf-select:disabled { opacity: .55; }
.nf-input.is-invalid, .nf-textarea.is-invalid { border-color: var(--nf-sig-bad); }

.nf-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none' stroke='%236b6b76' stroke-width='1.5' stroke-linecap='round'%3E%3Cpath d='M3 4.5 6 7.5 9 4.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .7rem center; background-size: 11px;
  padding-right: 2rem;
}

.nf-choice-grid { display: flex; flex-wrap: wrap; gap: .35rem; }
.nf-choice { position: relative; }
.nf-choice input { position: absolute; opacity: 0; width: 0; height: 0; }
.nf-choice span {
  display: inline-flex; align-items: center;
  padding: .4rem .75rem;
  font-size: .8125rem;
  color: var(--nf-ink-muted);
  border: 1px solid var(--nf-line-strong);
  border-radius: var(--nf-r-sm);
  cursor: pointer;
  transition: all var(--nf-dur-fast) var(--nf-ease-out);
}
.nf-choice span:hover { border-color: var(--nf-line-bright); color: var(--nf-ink-strong); }
.nf-choice input:checked + span {
  color: var(--nf-accent); border-color: var(--nf-accent); background: var(--nf-accent-soft);
}
.nf-choice input:focus-visible + span { outline: 1px solid var(--nf-accent); outline-offset: 2px; }

.nf-check { display: flex; gap: .55rem; align-items: flex-start; cursor: pointer; }
.nf-check input { flex: 0 0 15px; width: 15px; height: 15px; margin-top: .22em; accent-color: var(--nf-accent); cursor: pointer; }
.nf-check span { font-size: .8125rem; color: var(--nf-ink-muted); line-height: 1.6; }
.nf-check a { color: var(--nf-accent); text-decoration: underline; text-underline-offset: 2px; }

.nf-honeypot { position: absolute !important; left: -9999px !important; top: -9999px !important; width: 0; height: 0; overflow: hidden; }

.nf-alert {
  display: flex; gap: .6rem; align-items: flex-start;
  padding: .75rem .9rem;
  font-size: .875rem; line-height: 1.6;
  border-radius: var(--nf-r-sm);
  border: 1px solid var(--nf-line-strong);
  background: var(--nf-bg-elevated);
}
.nf-alert svg { flex: 0 0 15px; width: 15px; height: 15px; margin-top: .2em; }
.nf-alert--info    { color: var(--nf-sig-info); border-color: color-mix(in srgb, var(--nf-sig-info) 30%, transparent); }
.nf-alert--success { color: var(--nf-sig-good); border-color: color-mix(in srgb, var(--nf-sig-good) 30%, transparent); }
.nf-alert--warn    { color: var(--nf-sig-warn); border-color: color-mix(in srgb, var(--nf-sig-warn) 30%, transparent); }
.nf-alert--error   { color: var(--nf-sig-bad);  border-color: color-mix(in srgb, var(--nf-sig-bad) 30%, transparent); }

/* --------------------------------------------------------------------------
   Breadcrumb / Pagination / Table
   -------------------------------------------------------------------------- */
.nf-crumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: .4rem;
  font-family: var(--nf-font-mono); font-size: .6875rem; letter-spacing: .06em;
  color: var(--nf-ink-subtle); margin-bottom: 1.1rem;
}
.nf-crumb a:hover { color: var(--nf-ink-strong); }
.nf-crumb__sep { opacity: .5; }
.nf-crumb [aria-current='page'] { color: var(--nf-ink-muted); }

.nf-pager { display: flex; justify-content: center; align-items: center; gap: .25rem; margin-top: 3rem; flex-wrap: wrap; }
.nf-pager a, .nf-pager span {
  display: grid; place-items: center;
  min-width: 32px; height: 32px; padding-inline: .5rem;
  font-size: .8125rem; font-variant-numeric: tabular-nums;
  color: var(--nf-ink-muted);
  border: 1px solid var(--nf-line);
  border-radius: var(--nf-r-sm);
  transition: all var(--nf-dur-fast) var(--nf-ease-out);
}
.nf-pager a:hover { color: var(--nf-ink-strong); border-color: var(--nf-line-bright); background: var(--nf-bg-elevated); }
.nf-pager .is-active { color: var(--nf-ink-inverse); background: var(--nf-ink-strong); border-color: var(--nf-ink-strong); }
.nf-pager .is-disabled { opacity: .3; pointer-events: none; }

.nf-table-wrap { overflow-x: auto; border: 1px solid var(--nf-line); border-radius: var(--nf-r-md); }
.nf-table { width: 100%; border-collapse: collapse; font-size: .875rem; }
.nf-table th, .nf-table td { padding: .7rem .9rem; text-align: left; }
.nf-table thead th {
  font-family: var(--nf-font-mono); font-size: .6875rem; letter-spacing: .07em; text-transform: uppercase;
  color: var(--nf-ink-subtle); background: var(--nf-bg-elevated);
  border-bottom: 1px solid var(--nf-line); white-space: nowrap;
}
.nf-table tbody tr { border-bottom: 1px solid var(--nf-line); transition: background var(--nf-dur-fast) var(--nf-ease-out); }
.nf-table tbody tr:last-child { border-bottom: 0; }
.nf-table tbody tr:hover { background: var(--nf-bg-elevated); }
.nf-table td.nf-td-num { font-variant-numeric: tabular-nums; color: var(--nf-ink-subtle); }

.nf-empty { text-align: center; padding: clamp(40px, 6vw, 76px) 1rem; border: 1px dashed var(--nf-line-strong); border-radius: var(--nf-r-md); }
.nf-empty__icon {
  width: 40px; height: 40px; margin: 0 auto 1rem;
  display: grid; place-items: center;
  border: 1px solid var(--nf-line); border-radius: var(--nf-r-sm); color: var(--nf-ink-subtle);
}
.nf-empty__icon svg { width: 18px; height: 18px; }
.nf-empty h3 { font-size: 1rem; margin-bottom: .4rem; }
.nf-empty p { color: var(--nf-ink-muted); font-size: .875rem; }

/* --------------------------------------------------------------------------
   Prose
   -------------------------------------------------------------------------- */
.nf-prose { font-size: 1rem; line-height: 1.82; color: var(--nf-ink-muted); }
.nf-prose > * + * { margin-top: 1.2em; }
.nf-prose h2 { font-size: 1.4rem; color: var(--nf-ink-strong); margin-top: 2.2em; margin-bottom: .65em; }
.nf-prose h3 { font-size: 1.15rem; color: var(--nf-ink-strong); margin-top: 1.9em; margin-bottom: .55em; }
.nf-prose h4 { font-size: 1rem; color: var(--nf-ink-strong); margin-top: 1.6em; margin-bottom: .45em; }
.nf-prose h2:first-child, .nf-prose h3:first-child { margin-top: 0; }
.nf-prose p { margin: 0; }
.nf-prose strong { color: var(--nf-ink-strong); font-weight: 600; }
.nf-prose a { color: var(--nf-accent); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.nf-prose ul, .nf-prose ol { padding-left: 1.2em; }
.nf-prose ul { list-style: disc; }
.nf-prose ol { list-style: decimal; }
.nf-prose li { margin-bottom: .45em; }
.nf-prose li::marker { color: var(--nf-ink-faint); }
.nf-prose img { width: 100%; border-radius: var(--nf-r-md); border: 1px solid var(--nf-line); margin-block: 1.8em; }
.nf-prose figure { margin: 1.8em 0; }
.nf-prose figcaption {
  font-family: var(--nf-font-mono); font-size: .6875rem; letter-spacing: .05em;
  color: var(--nf-ink-subtle); text-align: center; margin-top: .7em;
}
.nf-prose blockquote {
  margin: 1.8em 0; padding: .2em 0 .2em 1.2em;
  border-left: 2px solid var(--nf-accent);
  color: var(--nf-ink); font-size: 1.05rem;
}
.nf-prose code {
  padding: .12em .35em; font-size: .875em;
  color: var(--nf-accent-hi); background: var(--nf-accent-soft);
  border: 1px solid var(--nf-accent-line); border-radius: 3px;
}
.nf-prose pre {
  padding: 1.1rem 1.25rem; overflow-x: auto;
  background: var(--nf-bg-inset); color: #d4d4d8;
  border: 1px solid var(--nf-line); border-radius: var(--nf-r-md);
  font-size: .8125rem; line-height: 1.7;
}
.nf-prose pre code { padding: 0; color: inherit; background: none; border: 0; }
.nf-prose table { width: 100%; border-collapse: collapse; font-size: .875rem; }
.nf-prose th, .nf-prose td { padding: .6rem .8rem; border: 1px solid var(--nf-line); text-align: left; }
.nf-prose th { background: var(--nf-bg-elevated); color: var(--nf-ink-strong); font-weight: 600; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.nf-footer {
  border-top: 1px solid var(--nf-line);
  padding-block: clamp(44px, 5vw, 72px) 1.75rem;
  font-size: .875rem;
  color: var(--nf-ink-muted);
}
.nf-footer a:hover { color: var(--nf-ink-strong); }
.nf-footer__grid {
  display: grid;
  grid-template-columns: minmax(220px, 1.5fr) repeat(3, minmax(130px, 1fr));
  gap: clamp(28px, 3.5vw, 48px);
  padding-bottom: clamp(36px, 4vw, 56px);
}
.nf-footer__title {
  font-family: var(--nf-font-mono); font-size: .6875rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--nf-ink-subtle); margin-bottom: .95rem;
}
.nf-footer__links li { margin-bottom: .55rem; }
.nf-footer__brand { display: inline-flex; align-items: center; gap: .5rem; color: var(--nf-ink-strong); font-weight: 600; font-size: 1rem; margin-bottom: .8rem; }
.nf-footer__tag { color: var(--nf-ink-subtle); font-size: .8125rem; line-height: 1.7; max-width: 32ch; }
.nf-footer__social { display: flex; gap: .4rem; margin-top: 1.2rem; }
.nf-footer__social a {
  display: grid; place-items: center; width: 30px; height: 30px;
  border: 1px solid var(--nf-line); border-radius: var(--nf-r-sm);
  transition: all var(--nf-dur-fast) var(--nf-ease-out);
}
.nf-footer__social a:hover { border-color: var(--nf-line-bright); background: var(--nf-bg-elevated); }
.nf-footer__social svg { width: 14px; height: 14px; }
.nf-footer__contact li { display: flex; gap: .5rem; align-items: flex-start; margin-bottom: .65rem; line-height: 1.55; font-size: .8125rem; }
.nf-footer__contact svg { flex: 0 0 13px; width: 13px; height: 13px; margin-top: .35em; opacity: .45; }
.nf-footer__bottom {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; flex-wrap: wrap;
  padding-top: 1.5rem;
  border-top: 1px solid var(--nf-line);
  font-family: var(--nf-font-mono); font-size: .6875rem; letter-spacing: .04em;
  color: var(--nf-ink-subtle);
}
.nf-footer__legal { display: flex; gap: 1.1rem; flex-wrap: wrap; }

@media (max-width: 900px) {
  .nf-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nf-footer__brand-col { grid-column: 1 / -1; }
}
@media (max-width: 520px) { .nf-footer__grid { grid-template-columns: 1fr; } }

/* --------------------------------------------------------------------------
   Responsive collapse
   -------------------------------------------------------------------------- */
@media (max-width: 1023px) {
  .nf-cells--4, .nf-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nf-cells--3, .nf-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .nf-cells--2, .nf-cells--3, .nf-cells--4,
  .nf-grid--2, .nf-grid--3, .nf-grid--4 { grid-template-columns: 1fr; }
  .nf-sec-head--split { align-items: flex-start; }
}

/* 토스트 */
.nf-toast-host { position: fixed; bottom: 20px; right: 20px; z-index: var(--nf-z-toast); display: flex; flex-direction: column; gap: .5rem; }
.nf-toast {
  display: flex; align-items: center; gap: .5rem;
  padding: .65rem .9rem;
  background: var(--nf-bg-raised); color: var(--nf-ink-strong);
  border: 1px solid var(--nf-line-strong);
  border-radius: var(--nf-r-sm);
  box-shadow: var(--nf-shadow-lg);
  font-size: .8125rem;
  animation: nf-toast-in .25s var(--nf-ease);
}
.nf-toast--error { border-color: var(--nf-sig-bad); color: var(--nf-sig-bad); }
@keyframes nf-toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }