/* ============================================================
   sec-diff — 차별화 비교표
   모든 규칙 #sec-diff 하위 스코프. ADX 열 강조 = --c-violet 계열.
   tokens.css 변수 사용, 쿨톤·글라스 톤.
   ============================================================ */

#sec-diff .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;
}

#sec-diff .eyebrow i { font-size: 1.05em; }

/* ---------- 표 래퍼: 좁은 화면에서 내부 가로 스크롤 ---------- */
#sec-diff .diff-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  -webkit-overflow-scrolling: touch;
  outline: none;
}
#sec-diff .diff-table-wrap:focus-visible {
  box-shadow: 0 0 0 3px var(--c-indigo-glow);
}

/* ---------- 표 기본 ---------- */
#sec-diff .diff-table {
  width: 100%;
  min-width: 660px;
  border-collapse: separate;
  border-spacing: 0;
  table-layout: fixed;
  font-size: var(--fs-sm);
  color: var(--ink-2);
}
#sec-diff .diff-col-label { width: 15%; }

/* 좌상단 빈 코너 */
#sec-diff .diff-corner {
  background: transparent;
  border: 0;
}

/* ---------- 열 헤더 ---------- */
#sec-diff .diff-ch {
  vertical-align: bottom;
  text-align: left;
  padding: var(--space-4) var(--space-5);
  background: var(--panel);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  border-bottom: 0;
  border-radius: var(--radius) var(--radius) 0 0;
}
#sec-diff .diff-ch + .diff-ch { border-left: 0; }

#sec-diff .diff-ch__name {
  display: block;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--ink);
}
#sec-diff .diff-ch__tag {
  display: block;
  margin-top: 4px;
  font-size: var(--fs-label);
  font-weight: 600;
  color: var(--ink-3);
}

/* ADX 열 헤더 강조 (바이올렛) */
#sec-diff .diff-ch--adx {
  background: linear-gradient(180deg, var(--c-violet-soft), var(--panel-solid));
  border-color: rgba(124, 58, 237, .42);
  box-shadow: var(--shadow);
  position: relative;
}
#sec-diff .diff-ch--adx::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-indigo), var(--c-violet));
  border-radius: var(--radius) var(--radius) 0 0;
}
#sec-diff .diff-ch__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: var(--grad-tri);
  color: #fff;
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: -.01em;
  box-shadow: var(--shadow-sm);
}

/* ---------- 행 헤더(항목명) ---------- */
#sec-diff .diff-rh {
  text-align: left;
  vertical-align: middle;
  padding: var(--space-4) var(--space-5);
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
  background: transparent;
}

/* ---------- 본문 셀 ---------- */
#sec-diff .diff-table tbody td {
  padding: var(--space-4) var(--space-5);
  vertical-align: middle;
  line-height: 1.5;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-top: 0;
  border-left: 0;
  word-break: keep-all;
}
#sec-diff .diff-table tbody tr td:nth-of-type(1) { border-left: 1px solid var(--line-soft); }

/* 마지막 행 하단 라운드 */
#sec-diff .diff-table tbody tr:last-child td:nth-of-type(1) { border-bottom-left-radius: var(--radius); }

/* ---------- ADX 열(본문) 강조 ---------- */
#sec-diff .diff-adx {
  background: linear-gradient(180deg, rgba(237,233,254,.66), rgba(255,255,255,.85)) !important;
  border-left: 1px solid rgba(124, 58, 237, .38) !important;
  border-right: 1px solid rgba(124, 58, 237, .42) !important;
  border-bottom: 1px solid rgba(124, 58, 237, .22) !important;
  color: var(--ink);
  font-weight: 600;
  box-shadow: inset 0 0 0 9999px rgba(124, 58, 237, .02);
}
#sec-diff .diff-table tbody tr:last-child .diff-adx {
  border-bottom-right-radius: var(--radius);
  border-bottom-left-radius: var(--radius);
  box-shadow: 0 22px 40px -26px rgba(124, 58, 237, .55);
}

/* zebra: ADX 이외 열만 살짝 */
#sec-diff .diff-table tbody tr:nth-child(even) td:not(.diff-adx) {
  background: rgba(255, 255, 255, .5);
}

/* ---------- 하단 포지셔닝 한 줄 ---------- */
#sec-diff .diff-position {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-pill);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  font-size: var(--fs-body);
  color: var(--ink-2);
  word-break: keep-all;
  width: fit-content;
  max-width: 100%;
}
#sec-diff .diff-position i {
  flex: none;
  font-size: 1.4rem;
  color: var(--c-violet);
}
#sec-diff .diff-position strong {
  color: var(--ink);
  font-weight: 800;
}

/* ---------- 반응형 ---------- */
@media (max-width: 600px) {
  #sec-diff .diff-table { min-width: 560px; }
  #sec-diff .diff-ch,
  #sec-diff .diff-rh,
  #sec-diff .diff-table tbody td {
    padding: var(--space-3) var(--space-4);
  }
  #sec-diff .diff-position {
    width: auto;
    border-radius: var(--radius);
  }
}