/* ============================================================
   사진 용량 줄이기 전용 스타일
   (색상·간격·카드 등 공통 토큰은 common.css 재사용)
   - 이 도구의 모티프: 점점 작아지는 사각형 계단
     "큰 사진이 단계적으로 줄어드는" 과정을 그대로 그린다
   - 본체는 이미지 도구들과 같은 "작업대" 톤: 각진 패널, 모노 수치
   ============================================================ */

:root {
  --cp-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas,
             "Liberation Mono", "Nanum Gothic Coding", monospace;
  --cp-check-bg: #ffffff;
  --cp-check-fg: rgba(0, 0, 0, .10);
  --cp-step-edge: rgba(38, 34, 28, .2);   /* 축소 계단 선 */
}
:root[data-theme="dark"] {
  --cp-check-bg: #26262b;
  --cp-check-fg: rgba(255, 255, 255, .09);
  --cp-step-edge: rgba(236, 230, 218, .18);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --cp-check-bg: #26262b;
    --cp-check-fg: rgba(255, 255, 255, .09);
    --cp-step-edge: rgba(236, 230, 218, .18);
  }
}

/* ---- 도입부: 작아지는 사각형 계단 (이 도구의 얼굴) ---- */
.shrink-steps { position: relative; overflow: visible; }
.shrink-steps > * { position: relative; z-index: 1; }
.shrink-steps::before,
.shrink-steps::after {
  content: "";
  position: absolute;
  border: 2px solid var(--cp-step-edge);
  border-radius: 3px;
  pointer-events: none;
  z-index: 0;
}
.shrink-steps::before {                 /* 큰 사각형: 원본 */
  top: 12%;
  right: 3%;
  width: 190px;
  height: 142px;
  opacity: .55;
}
.shrink-steps::after {                  /* 작은 사각형: 줄어든 결과 (모서리 기준 정렬) */
  top: calc(12% + 52px);
  right: 3%;
  width: 104px;
  height: 78px;
  border-color: var(--color-primary);
  opacity: .5;
}
@media (max-width: 760px) {
  .shrink-steps::before, .shrink-steps::after { display: none; }
}

.tool-intro {
  padding: var(--space-6) 0 var(--space-5);
  margin-bottom: var(--space-5);
}
.tool-intro h1 {
  margin: 0 0 var(--space-3);
  max-width: 20ch;
  font-size: clamp(2.1rem, 5vw, 3.1rem);
  line-height: 1.18;
  letter-spacing: -.02em;
}
.lead {
  color: var(--color-text-sub);
  margin: var(--space-2) 0 var(--space-2);
  max-width: 60ch;
  font-size: 1.02rem;
}
.lead-note {
  color: var(--color-text-sub);
  font-size: .85rem;
  opacity: .85;
  margin: 0 0 var(--space-5);
}

/* ============================================================
   작업대 패널: 드롭존 + 설정
   ============================================================ */
.cp-panel {
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* ---- 드롭존 ---- */
.cp-drop {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  padding: var(--space-6) var(--space-4);
  text-align: center;
  cursor: pointer;
}
.cp-drop:hover, .cp-drop:focus-visible { border-color: var(--color-primary); }
.cp-drop:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.cp-drop.is-drag {
  border-color: var(--color-primary);
  background: var(--color-primary-weak);
}
.cp-drop-main { margin: 0 0 6px; font-weight: 600; }
.cp-drop-main u { text-decoration-color: var(--color-primary); text-underline-offset: 3px; }
.cp-drop-sub { margin: 0; font-size: .8rem; color: var(--color-text-sub); }

/* ---- 설정 행 ---- */
.cp-settings { display: flex; flex-direction: column; gap: var(--space-3); }
.cp-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.cp-label {
  flex: none;
  min-width: 6em;
  font-size: .8rem;
  font-weight: 600;
  color: var(--color-text-sub);
}
.cp-note { margin: 0; font-size: .8rem; color: var(--color-text-sub); }

.cp-chips { display: inline-flex; flex-wrap: wrap; gap: 6px; }
.cp-chips .chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 13px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  cursor: pointer;
  font-size: .86rem;
  user-select: none;
}
.cp-chips .chip:hover { border-color: var(--color-primary); }
.cp-chips .chip:has(input:checked) {
  background: var(--color-primary-weak);
  border-color: var(--color-primary);
  color: var(--color-primary);
  font-weight: 600;
}
.cp-chips .chip input { accent-color: var(--color-primary); margin: 0; }
.cp-chips .chip.is-disabled { opacity: .4; cursor: not-allowed; }

input[type="range"].cp-range {
  flex: 1;
  min-width: 140px;
  max-width: 320px;
  accent-color: var(--color-primary);
}
.cp-value {
  font-family: var(--cp-mono);
  font-size: .82rem;
  min-width: 3em;
  font-variant-numeric: tabular-nums;
}
select.cp-select {
  font: inherit;
  font-size: .86rem;
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text);
}
input[type="number"].cp-num {
  font: inherit;
  font-family: var(--cp-mono);
  font-size: .86rem;
  width: 6.5em;
  padding: 6px 8px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text);
}
#customTarget { font-size: .86rem; color: var(--color-text-sub); }

/* ============================================================
   압축 결과 목록
   ============================================================ */
.cp-results {
  margin-top: var(--space-4);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
}
.cp-results-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
}
.cp-summary {
  margin: 0;
  font-size: .88rem;
  color: var(--color-text-sub);
}
.cp-summary strong { color: var(--color-text); }
.cp-results-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.cp-results button:disabled { opacity: .45; cursor: not-allowed; }

.cp-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.cp-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-top: 1px dashed var(--color-border);
}
.cp-item:first-child { border-top: 0; }

.cp-thumb {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background-color: var(--cp-check-bg);
  background-image: conic-gradient(var(--cp-check-fg) 25%, transparent 0 50%,
                                   var(--cp-check-fg) 0 75%, transparent 0);
  background-size: 12px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
}
.cp-thumb canvas { display: block; }

.cp-info, .cp-out { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.cp-info { flex: 1 1 160px; }
.cp-out { flex: 1 1 220px; }
.cp-name {
  font-family: var(--cp-mono);
  font-size: .82rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cp-meta {
  font-size: .76rem;
  color: var(--color-text-sub);
  font-variant-numeric: tabular-nums;
}
.cp-meta.is-error { color: var(--color-primary); }
.cp-meta.is-capped { color: var(--color-primary); }

.cp-arrow {
  flex: none;
  color: var(--color-text-sub);
  font-size: .9rem;
}

.cp-actions { flex: none; display: flex; gap: 6px; }
.cp-btn-sm { padding: 5px 12px; font-size: .82rem; }
.cp-btn-x {
  padding: 5px 9px;
  font-size: .82rem;
  line-height: 1;
  color: var(--color-text-sub);
}
.cp-btn-x:hover { color: var(--color-primary); }

@media (max-width: 640px) {
  .cp-item { flex-wrap: wrap; }
  .cp-arrow { display: none; }
  .cp-info, .cp-out { flex: 1 1 40%; }
  .cp-actions { margin-left: auto; }
}

/* ---- 설명/FAQ 본문 (다른 도구와 동일 톤) ---- */
.prose { margin-top: var(--space-6); }
.prose h2 { margin-bottom: var(--space-3); }
.prose h3 { margin: var(--space-4) 0 var(--space-2); font-size: 1.05rem; }
.prose p, .prose li { color: var(--color-text); }
.prose em { color: var(--color-primary); font-style: normal; font-weight: 600; }
.prose ol, .prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: var(--space-2); }
.prose details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-2);
  background: var(--color-surface);
}
.prose summary { cursor: pointer; font-weight: 600; }
.prose details[open] summary { margin-bottom: var(--space-2); }
.prose details p { margin: 0 0 var(--space-2); color: var(--color-text-sub); }
.prose details p:last-child { margin-bottom: 0; }