:root {
  color-scheme: light;
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #f2f4f9;
  --border: #e2e6f0;
  --border-strong: #cfd5e4;
  --text: #111728;
  --text-soft: #4c5570;
  --muted: #5f6b85;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: #eef0ff;
  --ok: #0f6e50;
  --ok-soft: #e6f7f0;
  --warn: #8a4f08;
  --warn-soft: #fdf3e2;
  --danger: #c22f3c;
  --danger-soft: #fdecee;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(17, 23, 40, .04), 0 8px 24px rgba(17, 23, 40, .05);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
    --bg: #0d1017;
    --surface: #151a24;
    --surface-2: #1c222e;
    --border: #262e3d;
    --border-strong: #354054;
    --text: #e8ecf5;
    --text-soft: #aab4c8;
    --muted: #7d889e;
    --accent: #7b7bf5;
    --accent-hover: #9191ff;
    --accent-soft: #1e2140;
    --ok: #4ade80;
    --ok-soft: #12291f;
    --warn: #fbbf24;
    --warn-soft: #2a2213;
    --danger: #f87171;
    --danger-soft: #2b1417;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  }
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic",
    "Apple SD Gothic Neo", "Noto Sans KR", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: 100%;
  max-width: 1020px;
  margin: 0 auto;
  padding: 0 20px;
}

.muted { color: var(--muted); }
.small { font-size: 13px; }

/* header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -.01em;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 800;
}

.header-right { display: flex; align-items: center; gap: 12px; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex: 1;
  justify-content: center;
  font-size: 13.5px;
  min-width: 0;
}

.site-nav a {
  color: var(--text-soft);
  text-decoration: none;
  padding: 5px 0;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.site-nav a:hover { color: var(--text); border-bottom-color: var(--border-strong); }

.site-nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

.badge {
  font-size: 12px;
  color: var(--ok);
  background: var(--ok-soft);
  border: 1px solid color-mix(in srgb, var(--ok) 25%, transparent);
  padding: 3px 9px;
  border-radius: 999px;
  white-space: nowrap;
}

.lang,
.seg {
  display: inline-flex;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 2px;
}

.lang-btn,
.seg-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 7px;
  cursor: pointer;
}

.lang-btn.is-active,
.seg-btn.is-active {
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, .08);
}

/* hero */
.hero { padding: 44px 0 24px; text-align: center; }

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(26px, 4.6vw, 38px);
  letter-spacing: -.03em;
  line-height: 1.25;
}

.lead {
  margin: 0 auto;
  max-width: 620px;
  color: var(--text-soft);
  font-size: 15.5px;
}

/* card */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 26px;
}

/* dropzone */
.dropzone {
  border: 1.5px dashed var(--border-strong);
  border-radius: 12px;
  padding: 32px 20px;
  text-align: center;
  background: var(--surface-2);
  transition: border-color .15s, background .15s;
  cursor: pointer;
}

.dropzone:hover,
.dropzone:focus-visible {
  border-color: var(--accent);
  background: var(--accent-soft);
  outline: none;
}

.dropzone.is-drag {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.dropzone-icon { color: var(--accent); margin-bottom: 6px; }

.dropzone-title { margin: 0 0 6px; font-weight: 650; font-size: 16px; }

.dropzone-sub {
  margin: 0 auto 14px;
  max-width: 460px;
  color: var(--text-soft);
  font-size: 13.5px;
}

.dropzone-hint { margin: 12px 0 0; font-size: 12px; color: var(--muted); }

.dropzone.is-compact { display: none; }

/* filebar */
.filebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 20px;
}

.filebar-info { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; min-width: 0; }
.filebar-info strong { font-size: 14px; word-break: break-all; }
.filebar-actions { display: flex; gap: 6px; }

/* buttons */
.btn {
  font: inherit;
  font-size: 14px;
  border-radius: 9px;
  border: 1px solid transparent;
  padding: 8px 14px;
  cursor: pointer;
  transition: background .15s, border-color .15s, opacity .15s;
  white-space: nowrap;
}

.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  border-color: var(--accent);
}

.btn-primary:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-ghost {
  background: transparent;
  color: var(--text-soft);
  border-color: var(--border);
}

.btn-ghost:hover:not(:disabled) { background: var(--surface-2); color: var(--text); }

.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-lg { padding: 13px 26px; font-size: 15px; width: 100%; }

/* section heads */
.rules-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin: 26px 0 10px;
}

.rules-head:first-of-type { margin-top: 0; }

.rules-head h2,
.preview-head h2,
.content h2 {
  font-size: 15px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -.01em;
}

.rules-head p { margin: 0; }
.rules-head-actions { display: flex; gap: 6px; }

/* presets */
.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.preset {
  font: inherit;
  font-size: 13px;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-soft);
  cursor: pointer;
  transition: all .15s;
}

.preset:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

/* rules */
.rules { display: flex; flex-direction: column; gap: 8px; }

.rule {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-2);
}

.rule-order {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  font-size: 11px;
  color: var(--muted);
  flex: none;
}

.rule select,
.rule input[type="text"],
.rule input[type="number"] {
  font: inherit;
  font-size: 13px;
  padding: 6px 8px;
  border-radius: 7px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  min-width: 0;
}

.rule input[type="text"] { width: 130px; }
.rule input[type="number"] { width: 74px; }

.rule select:focus,
.rule input:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }

.rule-type { font-weight: 600; }

.rule-field {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--muted);
}

.rule-check {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-soft);
  cursor: pointer;
  user-select: none;
}

.rule-spacer { flex: 1; }

.rule-remove {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 6px;
}

.rule-remove:hover { background: var(--danger-soft); color: var(--danger); }

.rules-empty {
  padding: 18px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  border: 1px dashed var(--border-strong);
  border-radius: 10px;
}

/* preview */
.preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin: 26px 0 10px;
}

.preview-head-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.preview {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: auto;
  max-height: 420px;
  background: var(--surface);
}

.preview .empty {
  margin: 0;
  padding: 30px 20px;
  text-align: center;
  color: var(--muted);
  font-size: 13.5px;
}

table.names {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

table.names th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--surface-2);
  text-align: left;
  font-weight: 600;
  color: var(--muted);
  font-size: 11.5px;
  letter-spacing: .02em;
  text-transform: uppercase;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

table.names td {
  padding: 7px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

table.names tr:last-child td { border-bottom: 0; }

table.names td.num { color: var(--muted); font-size: 12px; width: 40px; }

.fname {
  font-family: var(--mono);
  font-size: 12.5px;
  word-break: break-all;
}

.fname.old { color: var(--muted); }
.fname.new { color: var(--text); font-weight: 500; }

.fdir { color: var(--muted); }

tr.row-error { background: var(--danger-soft); }
tr.row-warn { background: var(--warn-soft); }

.chip {
  display: inline-block;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 999px;
  white-space: nowrap;
  font-weight: 600;
}

.chip.ok { background: var(--ok-soft); color: var(--ok); }
.chip.warn { background: var(--warn-soft); color: var(--warn); }
.chip.error { background: var(--danger-soft); color: var(--danger); }

.more-row td { text-align: center; color: var(--muted); font-size: 12px; }

/* summary */
.summary {
  margin-top: 14px;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 13.5px;
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.summary.ok { border-color: color-mix(in srgb, var(--ok) 30%, transparent); background: var(--ok-soft); color: var(--ok); }
.summary.warn { border-color: color-mix(in srgb, var(--warn) 30%, transparent); background: var(--warn-soft); color: var(--warn); }
.summary.error { border-color: color-mix(in srgb, var(--danger) 30%, transparent); background: var(--danger-soft); color: var(--danger); }

.summary ul { margin: 6px 0 0; padding-left: 18px; }

/* actions */
.actions { margin-top: 20px; text-align: center; }
.actions p { margin: 10px 0 0; }

/* ad */
.ad-slot {
  margin: 8px 0 34px;
  min-height: 92px;
  border: 1px dashed var(--border-strong);
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 12px;
  background: var(--surface-2);
}

/* content */
.content { padding-bottom: 40px; }

.content h2 {
  font-size: 17px;
  margin: 32px 0 12px;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.steps li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}

.steps strong { display: block; margin-bottom: 4px; font-size: 14px; }
.steps p { margin: 0; font-size: 13.5px; color: var(--text-soft); }

.bullets { margin: 0; padding-left: 20px; color: var(--text-soft); }
.bullets li { margin-bottom: 6px; }

details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 8px;
}

details summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
}

details p { margin: 8px 0 0; color: var(--text-soft); font-size: 13.5px; }

/* 문서 페이지 (guide / faq / about / privacy) */
.doc {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 0 64px;
}

.doc h1 {
  margin: 0 0 8px;
  font-size: clamp(23px, 4vw, 30px);
  letter-spacing: -.025em;
  line-height: 1.3;
}

.doc .doc-meta {
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 13px;
}

.doc h2 {
  margin: 36px 0 10px;
  font-size: 18px;
  letter-spacing: -.015em;
}

.doc h3 {
  margin: 24px 0 8px;
  font-size: 15px;
}

.doc p { margin: 0 0 12px; color: var(--text-soft); font-size: 14.5px; }
.doc li { color: var(--text-soft); font-size: 14.5px; margin-bottom: 6px; }
.doc ul, .doc ol { margin: 0 0 14px; padding-left: 22px; }
.doc strong { color: var(--text); }
.doc a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
}

.doc a:hover { text-decoration-thickness: 2px; }

.doc code {
  font-family: var(--mono);
  font-size: 12.5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 5px;
  color: var(--text);
}

.doc table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  margin: 0 0 18px;
}

.doc th,
.doc td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  color: var(--text-soft);
}

.doc th { background: var(--surface-2); color: var(--muted); font-weight: 600; }
.doc th:first-child, .doc td:first-child { white-space: nowrap; }

.doc .note {
  margin: 0 0 18px;
  padding: 12px 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
}

.doc .note p { margin: 0; font-size: 13.5px; }
.doc .note p + p { margin-top: 8px; }

.doc .back {
  display: inline-block;
  margin-top: 32px;
  font-size: 14px;
  font-weight: 600;
}

.doc .toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 18px;
  margin: 0 0 28px;
}

.doc .toc p { margin: 0 0 6px; font-size: 13px; font-weight: 600; color: var(--text); }
.doc .toc ol, .doc .toc ul { margin: 0; padding-left: 20px; font-size: 13.5px; }
.doc .toc li { margin-bottom: 3px; }

/* footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  font-size: 13px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 12px 20px;
  flex-wrap: wrap;
  align-items: center;
}

.footer-nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--text-soft);
  text-decoration: none;
}

.footer-nav a:hover { color: var(--text); text-decoration: underline; }

@media (max-width: 720px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    min-height: 54px;
    padding: 8px 0 0;
  }
  .site-nav {
    order: 3;
    flex-basis: 100%;
    justify-content: flex-start;
    gap: 16px;
    padding-bottom: 6px;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .site-nav::-webkit-scrollbar { display: none; }
  .doc { padding: 28px 0 48px; }
  .doc th:first-child, .doc td:first-child { white-space: normal; }
}

@media (max-width: 620px) {
  .card { padding: 14px; }
  .hero { padding: 30px 0 18px; }
  .rule input[type="text"] { width: 100px; }
  .badge { display: none; }
  .filebar { flex-direction: column; align-items: flex-start; }
}

/* Shared homepage/sidebar layout */
.app-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:28px;max-width:1280px;margin:0 auto;padding:24px 24px 48px;min-height:calc(100vh - 130px)}.sidebar{align-self:start;position:sticky;top:78px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px}.sidebar-nav{display:flex;flex-direction:column;gap:4px}.sidebar-nav a{display:block;padding:9px 11px;border-radius:9px;color:var(--text-soft);text-decoration:none}.sidebar-nav a:hover,.sidebar-nav a.is-active{background:var(--accent-soft);color:var(--accent)}.sidebar-nav a.is-active{font-weight:650}.sidebar-label{color:var(--muted);font-size:12px;font-weight:700;padding:14px 11px 4px}.page-main{min-width:0;width:100%;max-width:1020px;margin:0 auto;padding:0}.home-main{max-width:980px}.home-hero{padding:42px 0 32px}.home-hero h1{font-size:clamp(32px,5vw,48px);letter-spacing:-.04em;margin:8px 0 12px}.eyebrow{color:var(--accent);font-weight:700}.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:16px}.tool-card{display:flex;flex-direction:column;align-items:flex-start;gap:10px;min-height:210px;padding:22px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);color:var(--text);text-decoration:none;transition:transform .15s,border-color .15s}.tool-card:hover{transform:translateY(-2px);border-color:var(--accent)}.tool-card-title{font-size:18px;font-weight:700}.tool-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--accent-soft);color:var(--accent);font-size:22px}.tool-link{margin-top:auto;color:var(--accent);font-weight:650}.tool-card-soon{opacity:.72;border-style:dashed}.home-note{margin-top:38px;padding:22px;background:var(--surface-2);border-radius:var(--radius)}.menu-toggle{display:none;border:0;background:transparent;color:var(--text);font-size:20px;cursor:pointer}.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}@media(max-width:760px){.app-layout{display:block;padding:12px 16px 36px}.menu-toggle{display:inline-flex;align-items:center;justify-content:center}.header-inner{gap:12px}.header-right .badge{display:none}.sidebar{display:none;position:absolute;top:58px;left:12px;right:12px;z-index:30;box-shadow:var(--shadow)}.sidebar.is-open{display:block}.page-main{padding:0}.home-hero{padding:30px 0 24px}}
/* Sidebar navigation icons */
.sidebar-nav a.sidebar-link{position:relative;display:flex;align-items:center;justify-content:center;gap:10px;min-height:44px;text-align:center}
.sidebar-nav a.sidebar-link-home{position:relative;justify-content:center}
.sidebar-link .sidebar-icon-box{position:absolute;left:9px}
.sidebar-link-label{display:block}
.sidebar-link-label{width:100%;text-align:center}
.sidebar-icon-box{display:grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:8px;background:var(--accent-soft);color:var(--accent)}
.sidebar-icon-box::before{content:"";display:block;width:18px;height:18px;background:currentColor;-webkit-mask:var(--sidebar-icon) center/contain no-repeat;mask:var(--sidebar-icon) center/contain no-repeat}.sidebar-icon-house{--sidebar-icon:url("/assets/icons/house.svg")}.sidebar-icon-file{--sidebar-icon:url("/assets/icons/file-pen-line.svg")}

/* Center sidebar labels and reuse the renaming icon on the tool card */
.sidebar-nav a{text-align:center}
.sidebar-label{text-align:center}
.tool-icon-rename{font-size:0}
.tool-icon-rename::before{content:"";display:block;width:24px;height:24px;background:currentColor;-webkit-mask:url("/assets/icons/file-pen-line.svg") center/contain no-repeat;mask:url("/assets/icons/file-pen-line.svg") center/contain no-repeat}

.sidebar-divider{display:block;flex:0 0 1px;height:1px;margin:7px 8px;background:var(--border)}

:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1017;
  --surface: #151a24;
  --surface-2: #1c222e;
  --border: #262e3d;
  --border-strong: #354054;
  --text: #e8ecf5;
  --text-soft: #aab4c8;
  --muted: #7d889e;
  --accent: #7b7bf5;
  --accent-hover: #9191ff;
  --accent-soft: #1e2140;
  --ok: #4ade80;
  --ok-soft: #12291f;
  --warn: #fbbf24;
  --warn-soft: #2a2213;
  --danger: #f87171;
  --danger-soft: #2b1417;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
}
.theme-switch{display:inline-flex;align-items:center;gap:2px;padding:2px;border:1px solid var(--border);border-radius:9px;background:var(--surface-2)}
.theme-btn{display:grid;place-items:center;width:31px;height:30px;padding:0;border:0;border-radius:7px;background:transparent;color:var(--muted);cursor:pointer}
.theme-btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.theme-btn:hover{color:var(--text)}
.theme-btn.is-active{background:var(--surface);color:var(--accent);box-shadow:0 1px 2px rgba(0,0,0,.1)}
.theme-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
/* Grouped tool navigation */
.tools-menu{position:relative}
.content-page .site-nav .tools-menu{position:relative;margin:0;padding:0;border:0;border-radius:0;background:transparent}
.content-page .site-nav .tools-menu>summary{font-size:inherit;font-weight:400}
.site-nav .tools-menu>summary{list-style:none;cursor:pointer;color:var(--text-soft);padding:5px 0;border-bottom:2px solid transparent;white-space:nowrap}
.site-nav .tools-menu>summary::-webkit-details-marker{display:none}
.site-nav .tools-menu>summary:hover,.site-nav .tools-menu[open]>summary{color:var(--text)}
.site-nav .tools-menu>summary.is-active{color:var(--text);font-weight:600;border-bottom-color:var(--accent)}
.tools-menu-panel{display:none;position:absolute;top:calc(100% + 8px);left:-12px;z-index:40;min-width:190px;padding:6px;background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow)}
.tools-menu[open] .tools-menu-panel{display:flex;flex-direction:column;gap:2px}
.site-nav .tools-menu-panel a{display:block;padding:8px 10px;border:0;border-radius:7px;color:var(--text-soft)}
.site-nav .tools-menu-panel a:hover,.site-nav .tools-menu-panel a[aria-current="page"]{background:var(--accent-soft);color:var(--accent);border:0}
.site-nav .tools-menu-panel a[aria-current="page"]{font-weight:650}
@media(max-width:720px){.site-nav{flex-wrap:wrap;overflow:visible}.tools-menu[open]{flex-basis:100%}.tools-menu[open] .tools-menu-panel{position:static;min-width:0;margin:4px 0 0;box-shadow:none}}

/* Resize tool */
.sidebar-icon-image{--sidebar-icon:url("/assets/icons/image.svg")}
.tool-icon-image{font-size:0}
.tool-icon-image::before{content:"";display:block;width:24px;height:24px;background:currentColor;-webkit-mask:url("/assets/icons/image.svg") center/contain no-repeat;mask:url("/assets/icons/image.svg") center/contain no-repeat}
.resize-main{max-width:1080px}
.resize-hero{padding:34px 0 24px}
.resize-upload-card{padding:16px;margin-bottom:18px}
.resize-dropzone{margin:0}
.resize-file-meta{margin:14px 4px 0;color:var(--text-soft);font-size:13px;overflow-wrap:anywhere}
.resize-workspace{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(0,1.2fr);gap:18px;align-items:start}
.resize-settings,.resize-preview-card{min-width:0}
.resize-mode{width:max-content;margin:12px 0 18px}
.resize-dimensions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.resize-field{display:grid;gap:6px;color:var(--text-soft);font-size:13px;font-weight:600}
.resize-input-wrap{display:flex;align-items:center;gap:8px;min-width:0;padding:0 10px;border:1px solid var(--border);border-radius:9px;background:var(--surface)}
.resize-input-wrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 16%,transparent)}
.resize-input-wrap input{width:100%;min-width:0;padding:9px 0;border:0;outline:0;background:transparent;color:var(--text);font:inherit;font-size:15px;font-weight:600}
.resize-unit{color:var(--muted);font-size:12px;font-weight:500}
.resize-lock-row{display:flex;align-items:flex-start;gap:10px;margin:16px 0;color:var(--text)}
.resize-lock-row>input{flex:0 0 auto;margin:4px 0 0;accent-color:var(--accent)}
.resize-lock-row>span{display:grid;gap:3px}
.resize-lock-row strong{font-size:13px}
.resize-lock-row small{color:var(--muted);font-size:12px;line-height:1.5}
.resize-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.resize-status{min-height:1.5em;margin:12px 0 0;color:var(--muted);font-size:13px}
.resize-preview-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.resize-preview-panel{display:flex;flex-direction:column;gap:9px;min-width:0;margin:0}
.resize-preview-panel figcaption{color:var(--text-soft);font-size:12px;font-weight:650}
.resize-preview-panel img,.resize-preview-empty{display:grid;place-items:center;width:100%;height:220px;max-height:38vh;object-fit:contain;border:1px solid var(--border);border-radius:10px;background:var(--surface-2);color:var(--muted)}
.resize-preview-empty{padding:14px;text-align:center;font-size:12px}
.resize-privacy{margin:16px 0 0;font-size:12px;text-align:center}
@media(max-width:860px){.resize-workspace{grid-template-columns:1fr}.resize-settings{order:1}.resize-preview-card{order:2}}
@media(max-width:520px){.resize-preview-grid{grid-template-columns:1fr}.resize-preview-panel img,.resize-preview-empty{height:190px}.resize-hero{padding:25px 0 18px}.resize-actions .btn{flex:1}}

.resize-dropzone .btn{display:inline-block}

.site-nav .tools-menu>summary::after{content:"";display:inline-block;width:6px;height:6px;margin:0 0 3px 7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);transition:transform .15s}.site-nav .tools-menu[open]>summary::after{transform:rotate(225deg);margin-bottom:0}

/* Bilingual content blocks (guide / faq / about / privacy) */
[data-lang-block="en"] { display: none; }
html[data-active-lang="en"] [data-lang-block="en"] { display: block; }
html[data-active-lang="en"] [data-lang-block="ko"] { display: none; }

/* 사용법 허브 카드 (/guide/) */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin: 22px 0 10px;
}

.guide-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 9px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--text);
  transition: transform .15s, border-color .15s;
}

.doc a.guide-card { text-decoration: none; }
.doc a.guide-card:hover { border-color: var(--accent); transform: translateY(-2px); }

.guide-card-title { font-size: 17px; font-weight: 700; }
.guide-card-desc { color: var(--text-soft); font-size: 13.5px; line-height: 1.62; }
.guide-card-meta { color: var(--muted); font-size: 12px; }
.guide-card .tool-link { margin-top: auto; padding-top: 6px; font-size: 13.5px; font-weight: 650; color: var(--accent); }