:root {
  --purple: #7D55C7;
  --purple-dark: #6441A8;
  --purple-light: #E8E2F5;
  --purple-faint: #F6F3FB;
  --ink: #2B2440;
  --muted: #6E6882;
  --line: #E6E1EF;
  --bg: #FFFFFF;
  --ok: #2E8B57;
  --err: #A23232;
  --checker: #E9E9EE;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Noto Sans KR', system-ui, sans-serif;
  color: var(--ink); background: var(--bg);
  min-height: 100vh; display: flex; flex-direction: column;
  line-height: 1.6;
}
main { flex: 1; width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 24px 64px; }
a { color: var(--purple); }
button, input, select { font: inherit; color: inherit; }

/* ---------- 헤더 / 푸터 ---------- */
.site-header {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 24px; border-bottom: 1px solid var(--line);
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 900; font-size: 21px; color: var(--ink); text-decoration: none; }
.logo-mark {
  width: 32px; height: 32px; border-radius: 9px; background: var(--purple);
  display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 3px; padding: 6px;
}
.logo-mark i { background: #fff; border-radius: 2px; }
.logo-mark i:nth-child(2) { background: var(--purple-light); }
.logo-mark i:nth-child(3) { grid-column: 1 / 3; }
.site-header nav { display: flex; gap: 18px; font-size: 14px; font-weight: 500; }
.site-header nav a { color: var(--ink); text-decoration: none; }
.site-header nav a:hover { color: var(--purple); }
.site-footer { border-top: 1px solid var(--line); padding: 24px; text-align: center; font-size: 12px; color: var(--muted); }
.site-footer p + p { margin-top: 4px; }
.site-footer a { color: var(--muted); }

/* ---------- 공통 버튼 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 0; cursor: pointer; text-decoration: none;
  background: var(--purple); color: #fff; font-size: 18px; font-weight: 700;
  padding: 14px 34px; border-radius: 999px; transition: background .2s, transform .1s;
}
.btn:hover { background: var(--purple-dark); }
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .45; cursor: default; }
.btn.ghost { background: var(--purple-light); color: var(--purple); }
.btn.ghost:hover { background: #DCD2F0; }
.btn.small { font-size: 14px; padding: 9px 18px; }
.icon-btn {
  border: 0; background: transparent; cursor: pointer; width: 32px; height: 32px; border-radius: 8px;
  color: var(--muted); font-size: 14px;
}
.icon-btn:hover { background: var(--purple-light); color: var(--purple); }
.icon-btn:disabled { opacity: .3; cursor: default; background: transparent; }

.checker {
  background-color: #fff;
  background-image:
    linear-gradient(45deg, var(--checker) 25%, transparent 25%),
    linear-gradient(-45deg, var(--checker) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--checker) 75%),
    linear-gradient(-45deg, transparent 75%, var(--checker) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
}

/* ---------- 홈 ---------- */
.home-hero { text-align: center; padding: 64px 0 40px; }
.home-hero h1 { font-size: 46px; font-weight: 900; line-height: 1.25; letter-spacing: -1.2px; }
.home-hero h1 em { font-style: normal; color: var(--purple); }
.home-hero p { margin: 16px auto 0; max-width: 620px; color: var(--muted); font-size: 17px; }
.home-tools h2, .related h2, .tool-info h2 { font-size: 20px; margin: 36px 0 14px; }

.bento { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.tool-card-link {
  display: flex; flex-direction: column; gap: 4px; padding: 20px;
  border-radius: 18px; background: var(--purple-faint); border: 1px solid var(--line);
  text-decoration: none; color: var(--ink); transition: transform .15s, box-shadow .15s, border-color .15s;
}
.tool-card-link:hover { transform: translateY(-2px); border-color: var(--purple); box-shadow: 0 10px 30px rgba(125,85,199,.15); }
.tool-card-link .tool-icon { font-size: 26px; }
.tool-card-link strong { font-size: 17px; margin-top: 6px; }
.tool-card-link span:last-child { font-size: 13px; color: var(--muted); }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 56px; }
.features div { padding: 22px; border-radius: 18px; border: 1px solid var(--line); }
.features span { font-size: 26px; }
.features strong { display: block; margin-top: 8px; font-size: 16px; }
.features p { font-size: 14px; color: var(--muted); margin-top: 4px; }

/* ---------- 도구 페이지 ---------- */
.tool-hero { text-align: center; padding: 44px 0 24px; }
.tool-hero h1 { font-size: 38px; font-weight: 900; letter-spacing: -1px; }
.tool-hero p { color: var(--muted); font-size: 17px; margin-top: 6px; }
.privacy-badge { display: inline-block; margin-top: 12px; font-size: 12px; color: var(--purple); background: var(--purple-faint); padding: 4px 12px; border-radius: 99px; }

.tool-root { margin-top: 8px; }
.tool-card {
  background: #fff; border-radius: 24px; box-shadow: 0 16px 50px rgba(125,85,199,.13);
  padding: 32px; border: 1px solid var(--line);
}
.dropzone {
  border: 2px dashed #CFC3E8; border-radius: 18px; padding: 44px 20px; text-align: center;
  background: var(--purple-faint); transition: background .2s, border-color .2s;
}
body.dragging .dropzone { border-color: var(--purple); background: var(--purple-light); }
.dropzone p { margin-top: 12px; font-weight: 700; }
.dropzone small { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }

.options { display: flex; flex-wrap: wrap; gap: 14px 24px; margin-top: 22px; align-items: center; }
.field { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 500; }
.field select, .field input[type=number] {
  padding: 8px 12px; border: 1px solid var(--line); border-radius: 10px; background: #fff; min-width: 90px;
}
.field input[type=range] { accent-color: var(--purple); width: 140px; }
.field b { min-width: 32px; color: var(--purple); }

.file-list { margin-top: 18px; display: grid; gap: 10px; }
.file-row {
  display: grid; grid-template-columns: 56px 1fr auto; gap: 14px; align-items: center;
  padding: 10px 12px; border: 1px solid var(--line); border-radius: 14px; background: #fff;
}
.file-row .thumb { width: 56px; height: 56px; border-radius: 10px; overflow: hidden; display: grid; place-items: center; font-size: 24px; }
.file-row .thumb img { width: 100%; height: 100%; object-fit: cover; }
.file-row .info { min-width: 0; }
.file-row .name { font-weight: 700; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-row .meta { font-size: 12px; color: var(--muted); }
.file-row .meta .good { color: var(--ok); font-weight: 700; }
.file-row .meta .bad { color: var(--err); font-weight: 700; }
.file-row .acts { display: flex; align-items: center; gap: 4px; }
.batch-actions { display: flex; gap: 10px; justify-content: center; margin-top: 20px; flex-wrap: wrap; }
.mini-spin {
  width: 20px; height: 20px; border: 3px solid var(--purple-light); border-top-color: var(--purple);
  border-radius: 50%; animation: spin 1s linear infinite; display: inline-block; vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

.progress { text-align: center; padding: 48px 0; }
.progress .spinner {
  width: 50px; height: 50px; margin: 0 auto 18px; border: 5px solid var(--purple-light); border-top-color: var(--purple);
  border-radius: 50%; animation: spin 1s linear infinite;
}
.progress .bar { height: 8px; background: var(--purple-light); border-radius: 99px; overflow: hidden; max-width: 420px; margin: 14px auto 0; }
.progress .bar div { height: 100%; width: 0; background: var(--purple); transition: width .2s; }
.progress small { display: block; margin-top: 8px; color: var(--muted); font-size: 12px; }

.error-box { margin-top: 16px; padding: 12px 16px; border-radius: 12px; background: #FDECEC; color: var(--err); font-size: 14px; }

/* 배경 제거 결과 */
.rb-result { display: grid; grid-template-columns: 1fr 260px; gap: 28px; align-items: start; }
.rb-stage { position: relative; border-radius: 16px; overflow: hidden; user-select: none; }
.rb-stage img { display: block; width: 100%; height: auto; }
.rb-stage .layer { position: absolute; inset: 0; }
.rb-stage .layer img { width: 100%; height: 100%; object-fit: contain; }
.rb-stage .orig { clip-path: inset(0 calc(100% - var(--pos, 0%)) 0 0); }
.rb-stage .divider { position: absolute; top: 0; bottom: 0; left: var(--pos, 0%); width: 3px; margin-left: -1.5px; background: #fff; box-shadow: 0 0 6px rgba(0,0,0,.35); display: none; pointer-events: none; }
.rb-stage.comparing .divider { display: block; }
.rb-hint { font-size: 12px; color: var(--muted); text-align: center; margin-top: 8px; }
.rb-side { display: grid; gap: 18px; }
.rb-side h3 { font-size: 14px; margin-bottom: 8px; }
.swatches { display: flex; flex-wrap: wrap; gap: 8px; }
.sw { width: 34px; height: 34px; border-radius: 9px; cursor: pointer; border: 2px solid var(--line); position: relative; overflow: hidden; }
.sw.active { border-color: var(--purple); box-shadow: 0 0 0 3px var(--purple-light); }
.sw.trans { background-size: 10px 10px; background-position: 0 0, 0 5px, 5px -5px, -5px 0; }
.sw.pick { display: grid; place-items: center; color: var(--muted); background: #fff; }
.sw.pick input { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%; }
.rb-side .btn { width: 100%; }

/* 설명 영역 */
.tool-info { margin-top: 24px; }
.steps { padding-left: 22px; display: grid; gap: 6px; }
.faq details { border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; margin-bottom: 8px; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq details p { margin-top: 8px; color: var(--muted); font-size: 15px; }

.promo {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin-top: 32px; padding: 20px 24px; border-radius: 18px;
  background: linear-gradient(135deg, var(--purple-light), #F3EEFB); border: 1px solid #D9CCF0;
}
.promo p { font-size: 14px; color: var(--muted); }
.ad-slot { margin: 28px 0; min-height: 90px; }

.doc { max-width: 760px; margin: 48px auto 0; }
.doc h1 { font-size: 32px; margin-bottom: 20px; }
.doc h2 { font-size: 18px; margin: 28px 0 8px; }
.doc p { color: #4A4460; }

/* ---------- 공통 조각 (추가 도구) ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; align-items: center; }
.chips:first-child { margin-top: 0; }
.chip {
  border: 1px solid var(--line); background: #fff; color: var(--ink); cursor: pointer;
  padding: 7px 14px; border-radius: 99px; font-size: 13px; font-weight: 500;
}
.chip:hover { border-color: var(--purple); color: var(--purple); }
.chip.active { background: var(--purple); border-color: var(--purple); color: #fff; }
.chip.ghost { background: var(--purple-faint); border-color: transparent; }
.tool-sep { width: 1px; height: 22px; background: var(--line); margin: 0 4px; }
.spacer { flex: 1; }
.options.col { flex-direction: column; align-items: flex-start; }
.field input[type=text], .field input[type=search], .range-input {
  padding: 8px 12px; border: 1px solid var(--line); border-radius: 10px; background: #fff; min-width: 180px;
}
.field input[type=radio] { accent-color: var(--purple); }
.field input[type=color] { width: 44px; height: 34px; border: 1px solid var(--line); border-radius: 8px; padding: 2px; background: #fff; cursor: pointer; }
.note { font-size: 13px; color: var(--muted); margin-top: 12px; }
.center { text-align: center; }
.big-result { font-size: 22px; font-weight: 900; color: var(--purple); margin: 8px 0 4px; }
.status-line { text-align: center; color: var(--muted); margin: 16px 0; }
.hint-line { font-size: 12px; color: var(--muted); text-align: center; margin-top: 8px; }
.good { color: var(--ok); font-weight: 700; }
.warn { color: #B7791F; font-weight: 700; }
.result-audio { width: 100%; max-width: 480px; margin: 12px auto 0; display: block; }

/* PDF → 이미지 */
.page-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
.page-card { border: 1px solid var(--line); border-radius: 14px; padding: 10px; display: grid; gap: 8px; justify-items: center; }
.page-card img { width: 100%; aspect-ratio: 3/4; object-fit: contain; background: var(--purple-faint); border-radius: 8px; }
.page-meta { font-size: 12px; color: var(--muted); }

/* 자르기 */
.crop-stage { margin-top: 16px; max-height: 65vh; background: var(--purple-faint); border-radius: 14px; overflow: hidden; }
.crop-img { display: block; max-width: 100%; max-height: 65vh; }
.crop-size { font-size: 13px; color: var(--muted); align-self: center; }

/* GIF */
.gif-video { width: 100%; max-height: 55vh; border-radius: 14px; background: #000; display: block; }
.gif-result { max-width: 100%; border-radius: 12px; margin-top: 18px; }

/* 글자 수 */
.wc-stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; margin-bottom: 16px; }
.wc-stat { background: var(--purple-faint); border-radius: 12px; padding: 10px 14px; }
.wc-stat b { display: block; font-size: 18px; font-variant-numeric: tabular-nums; }
.wc-stat.big { background: var(--purple); color: #fff; }
.wc-stat.big span { color: #E8E2F5; }
.wc-stat span { font-size: 12px; color: var(--muted); }
.wc-area {
  width: 100%; min-height: 320px; resize: vertical; padding: 16px; font: inherit; font-size: 16px; line-height: 1.7;
  border: 1px solid var(--line); border-radius: 14px; outline: none;
}
.wc-area:focus { border-color: var(--purple); box-shadow: 0 0 0 3px var(--purple-light); }
.wc-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 12px; }
.wc-foot input { width: 110px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 10px; }
.wc-goal-msg { font-weight: 700; color: var(--purple); }
.wc-goal-msg.over { color: var(--err); }
.bar.wc-goal-bar { height: 8px; background: var(--purple-light); border-radius: 99px; overflow: hidden; margin-top: 10px; }
.bar.wc-goal-bar div { height: 100%; background: var(--purple); transition: width .2s; }

/* QR */
.qr-layout { display: grid; grid-template-columns: 1fr 280px; gap: 28px; align-items: start; }
.qr-tabs { display: flex; gap: 6px; margin-bottom: 12px; }
.qr-tab { border: 0; background: var(--purple-faint); color: var(--muted); padding: 8px 16px; border-radius: 10px; cursor: pointer; font-weight: 700; }
.qr-tab.active { background: var(--purple); color: #fff; }
.qr-text { width: 100%; padding: 12px; border: 1px solid var(--line); border-radius: 12px; font: inherit; resize: vertical; }
.qr-wifi { display: grid; gap: 10px; }
.qr-side { display: grid; gap: 10px; }
.qr-preview { aspect-ratio: 1; border: 1px solid var(--line); border-radius: 16px; display: grid; place-items: center; overflow: hidden; background: #fff; }
.qr-canvas { width: 100%; height: 100%; }
.qr-empty { color: var(--muted); font-size: 13px; padding: 20px; text-align: center; }
.qr-side .btn { width: 100%; }

/* 얼굴 모자이크 */
.bf-status { font-weight: 700; color: var(--purple); margin-bottom: 4px; }
.bf-status.busy::before { content: ""; display: inline-block; width: 14px; height: 14px; margin-right: 8px; vertical-align: -2px; border: 2px solid var(--purple-light); border-top-color: var(--purple); border-radius: 50%; animation: spin 1s linear infinite; }
.bf-stage {
  --ar: 1; position: relative; margin: 16px auto 0; border-radius: 12px; overflow: hidden;
  width: min(100%, calc(70vh * var(--ar))); aspect-ratio: var(--ar);
}
.bf-canvas { display: block; width: 100%; height: 100%; }
.bf-overlay { position: absolute; inset: 0; cursor: crosshair; touch-action: none; }
.bf-box { position: absolute; border: 2px solid #fff; box-shadow: 0 0 0 1px rgba(0,0,0,.5); border-radius: 6px; }
.bf-box.ghost { border-style: dashed; }
.bf-del {
  position: absolute; top: -10px; right: -10px; width: 22px; height: 22px; border-radius: 50%; border: 0;
  background: var(--purple); color: #fff; font-size: 11px; cursor: pointer; box-shadow: 0 1px 4px rgba(0,0,0,.3);
}

/* 무료 사진 */
.fp-form { display: flex; gap: 10px; }
.fp-input { flex: 1; min-width: 0; padding: 12px 16px; border: 1px solid var(--line); border-radius: 12px; font-size: 16px; }
.fp-input:focus { outline: none; border-color: var(--purple); box-shadow: 0 0 0 3px var(--purple-light); }
.photo-grid { columns: 4 200px; column-gap: 12px; margin-top: 20px; }
.photo { display: block; width: 100%; margin: 0 0 12px; padding: 0; border: 0; border-radius: 12px; overflow: hidden; cursor: zoom-in; background: var(--purple-faint); break-inside: avoid; }
.photo img { display: block; width: 100%; height: auto; transition: transform .2s; }
.photo:hover img { transform: scale(1.03); }
.fp-dialog { border: 0; border-radius: 20px; padding: 0; width: min(920px, calc(100vw - 32px)); max-height: calc(100vh - 32px); }
.fp-dialog::backdrop { background: rgba(43,36,64,.6); }
.fp-dialog-body { position: relative; }
.fp-close { position: absolute; top: 10px; right: 10px; background: rgba(255,255,255,.9); }
.fp-big { display: block; width: 100%; max-height: 62vh; object-fit: contain; background: #111; }
.fp-info { padding: 18px 22px 22px; display: grid; gap: 6px; font-size: 14px; }
.fp-info p { color: var(--muted); }
.fp-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }

@media (max-width: 760px) {
  .qr-layout { grid-template-columns: 1fr; }
  .fp-form { flex-direction: column; }
}

@media (max-width: 760px) {
  main { padding: 0 16px 48px; }
  .site-header { padding: 12px 16px; }
  .home-hero { padding: 40px 0 24px; }
  .home-hero h1 { font-size: 30px; }
  .tool-hero h1 { font-size: 28px; }
  .tool-card { padding: 18px; border-radius: 18px; }
  .features { grid-template-columns: 1fr; }
  .rb-result { grid-template-columns: 1fr; }
  .promo { flex-direction: column; align-items: flex-start; }
  .file-row { grid-template-columns: 44px 1fr auto; gap: 10px; }
  .file-row .thumb { width: 44px; height: 44px; }
}