*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  touch-action: pan-x pan-y; /* 핀치 줌 차단 (iOS Safari 보강) */
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
  color: inherit;
}
button:focus-visible, a:focus-visible, input:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
input, textarea, select {
  font: inherit;
  color: inherit;
}

h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: var(--weight-bold); line-height: var(--leading-tight); }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

/* 유틸 */
.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;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: var(--weight-medium);
  font-size: var(--text-base);
  transition: background .15s ease, color .15s ease, transform .05s ease;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-secondary { background: var(--color-primary-soft); color: var(--color-primary); }
.btn-ghost { color: var(--color-text-sub); }
.btn-ghost:hover { background: var(--color-surface); }
.btn-block { width: 100%; }

/* 배지 */
.badge {
  display: inline-flex; align-items: center; gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  background: var(--color-primary-soft);
  color: var(--color-primary);
}
.badge-accent { background: #FFECEC; color: var(--color-accent); }

/* 카드 공통 */
.card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

/* 스켈레톤 */
.skeleton {
  background: linear-gradient(90deg, #ECEEF5 25%, #F5F6FA 37%, #ECEEF5 63%);
  background-size: 400% 100%;
  animation: skel 1.4s ease infinite;
  border-radius: var(--radius-sm);
}
@keyframes skel {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}