/**
 * ICON-BTN-01 — site-wide + / − icon buttons
 * Phase 1: projects admin toolbar · reorder · delete
 * Phase 2: catalog (alias or migrate from catalog-icon-btn)
 * 정본: docs/284-공통-아이콘-버튼-ICON-BTN-01-구현계획.md
 */

.nmti-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  margin: 0;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #fff;
  color: #334155;
  font-family: inherit;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}

.nmti-icon-btn:hover,
.nmti-icon-btn:focus-visible {
  background: #f8fafc;
  border-color: #94a3b8;
  color: #0f172a;
  outline: none;
}

.nmti-icon-btn--add {
  color: #0f4f9f;
  border-color: #93c5fd;
  background: #eff6ff;
}

.nmti-icon-btn--add:hover,
.nmti-icon-btn--add:focus-visible {
  background: #dbeafe;
  border-color: #3b82f6;
  color: #0369a1;
}

.nmti-icon-btn--remove {
  color: #c92a2a;
  border-color: #fecaca;
  background: #fff5f5;
}

.nmti-icon-btn--remove:hover,
.nmti-icon-btn--remove:focus-visible {
  background: #ffe3e3;
  border-color: #f87171;
  color: #a61e1e;
}

.nmti-icon-btn--muted {
  color: #64748b;
  border-color: #e2e8f0;
  background: #fff;
  font-size: 0.9rem;
  font-weight: 500;
}

.nmti-icon-btn--muted:hover,
.nmti-icon-btn--muted:focus-visible {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #475569;
}

.nmti-icon-btn--sm {
  width: 1.65rem;
  height: 1.65rem;
  font-size: 0.95rem;
  border-radius: 6px;
}

.nmti-icon-btn-group {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* Glyph (SVG) — catalog viewer · tree row tools */
.nmti-icon-btn--glyph {
  border-color: transparent;
  background: transparent;
  font-weight: 500;
  opacity: 0.88;
}

.nmti-icon-btn--glyph:hover,
.nmti-icon-btn--glyph:focus-visible {
  background: #f1f5f9;
  border-color: transparent;
  opacity: 1;
}

.nmti-icon-btn--primary {
  color: #0f4f9f;
}

.nmti-icon-btn--glyph.nmti-icon-btn--primary:hover,
.nmti-icon-btn--glyph.nmti-icon-btn--primary:focus-visible {
  background: #e0f2fe;
  color: #0369a1;
}

.nmti-icon-btn__glyph,
.catalog-icon-btn__glyph {
  display: inline-flex;
  width: 1.05rem;
  height: 1.05rem;
  line-height: 0;
}

.nmti-icon-btn__glyph svg,
.catalog-icon-btn__glyph svg {
  width: 100%;
  height: 100%;
}

.nmti-icon-btn--file {
  cursor: pointer;
  position: relative;
}

.nmti-icon-btn__file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}