/* 공통 리셋 & 유틸 */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Pretendard', -apple-system, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  color: #0B1A33;
  background: #ffffff;
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

/* 플레이스홀더 이미지 (스트라이프 SVG) */
.ph {
  position: relative;
  background:
    repeating-linear-gradient(135deg,
      rgba(255,255,255,0.06) 0 12px,
      rgba(255,255,255,0.00) 12px 24px),
    linear-gradient(180deg, #23324a 0%, #0e1a30 100%);
  color: rgba(255,255,255,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', ui-monospace, Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  overflow: hidden;
}
.ph.light {
  background:
    repeating-linear-gradient(135deg,
      rgba(11,26,51,0.05) 0 12px,
      rgba(11,26,51,0.00) 12px 24px),
    linear-gradient(180deg, #f0f2f6 0%, #dfe4ec 100%);
  color: rgba(11,26,51,0.55);
}
.ph::after {
  content: '';
  position: absolute;
  inset: 12px;
  border: 1px dashed currentColor;
  opacity: 0.35;
  pointer-events: none;
}