:root {
  --bg: #ffffff;
  --panel: #fafafa;
  --line: #e4e4e7;
  --text: #18181b;
  --muted: #71717a;
  --accent: #6d28d9;
  --grad: linear-gradient(90deg, #7c3aed 0%, #4f46e5 45%, #3b82f6 100%);
  --grad-soft: linear-gradient(120deg, #e3f9f1 0%, #e6f1ff 50%, #ece8ff 100%);
  --violet: #5b4de6;
  --shadow: 0 4px 18px rgba(80, 70, 160, 0.08);
  --side-sel: #f3efff;
  --pass-bg: #f0fdf4;
  --pass: #15803d;
  --out: #a1a1aa;
  --warn: #b45309;
  --est: #7c3aed;
  --row-open: #f4f4f5;
  --seg-bg: #f1f1f3;
  --gA: #16a34a;
  --gB: #2563eb;
  --gC: #f59e0b;
  --gD: #a1a1aa;
  --g0: #e4e4e7;
  --good: #22c55e;
  --bad: #f97316;
  --neutral: #60a5fa;
  --track: #f1f1f3;
  --rocket: #0073e9;
  --seg-on: #1f2a24;
  --seg-on-text: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #18181b;
    --panel: #1f1f23;
    --line: #34343a;
    --text: #f4f4f5;
    --muted: #a1a1aa;
    --accent: #a78bfa;
    --grad-soft: linear-gradient(120deg, #15241f 0%, #172033 50%, #1e1a33 100%);
    --violet: #8b7ff5;
    --shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
    --side-sel: #2a2440;
    --pass-bg: #14271c;
    --pass: #4ade80;
    --out: #71717a;
    --warn: #fbbf24;
    --est: #c4b5fd;
    --row-open: #26262b;
    --seg-bg: #2a2a30;
    --gA: #4ade80;
    --gB: #60a5fa;
    --gC: #fbbf24;
    --gD: #71717a;
    --g0: #3f3f46;
    --track: #2a2a30;
    --rocket: #4ea1ff;
    --seg-on: #e4e4e7;
    --seg-on-text: #18181b;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 "Pretendard Variable", Pretendard, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  letter-spacing: -0.2px;
}
button, select, input { font: inherit; color: inherit; }
button {
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  cursor: pointer;
}
button.primary { background: var(--violet); border-color: var(--violet); color: #fff; border-radius: 10px; font-weight: 700; padding: 7px 18px; }
button.primary:hover { filter: brightness(1.08); }
select, input { background: var(--bg); border: 1px solid var(--line); border-radius: 4px; padding: 3px 6px; }
input[type="number"] { width: 96px; }
.muted { color: var(--muted); }
.grow { flex: 1; }

.top {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 20px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--bg); z-index: 2;
}
.top h1 { font-size: 22px; margin: 0; font-weight: 900; letter-spacing: -0.7px; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.top button { border-radius: 999px; }
main { background: linear-gradient(180deg, transparent 55%, var(--bg) 100%), var(--grad-soft); background-repeat: no-repeat; background-size: 100% 560px; }
.fgroup.fsearch { flex: 1 1 320px; }
.fsearch input { width: 100%; padding: 9px 16px; border-radius: 999px; border: 2px solid transparent; background: linear-gradient(var(--bg), var(--bg)) padding-box, var(--grad) border-box; }
.fsearch input:focus { outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, #7c3aed 18%, transparent); }
.session-head h2 { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 900; }

.layout { display: flex; min-height: calc(100vh - 52px); }
.side { width: 260px; flex: none; border-right: 1px solid var(--line); background: var(--bg); padding: 18px 12px; overflow: auto; }
.side-title { font-weight: 900; font-size: 22px; padding: 0 10px 2px; letter-spacing: -0.7px; }
.side-sub { font-size: 12px; padding: 0 10px 12px; }
main { flex: 1; min-width: 0; padding: 16px 20px 60px; }

.tree-node { margin: 1px 0; }
.tree-node > .label {
  display: flex; gap: 8px; align-items: center; padding: 9px 10px; border-radius: 8px; cursor: default; font-size: 15px;
}
.tree-node > .label.depth0 { font-weight: 700; }
.tree-node > .label.has, .tree-node > .label:has(.chev) { cursor: pointer; }
.tree-node > .label:hover { background: var(--row-open); }
.tree-node > .label.sel { background: var(--side-sel); color: var(--accent); font-weight: 700; }
.tname { flex: 1; min-width: 0; }
.count { font-size: 11px; color: var(--muted); white-space: nowrap; }
.tree-node > .label.sel .count { color: var(--accent); }
.chev { border: 0; background: transparent; padding: 2px; color: var(--muted); display: inline-flex; border-radius: 4px; transition: transform 0.15s; }
.chev.closed { transform: rotate(-90deg); }
.tree-kids { margin-left: 18px; padding-left: 8px; border-left: 2px solid var(--line); }

.empty { max-width: 560px; margin: 60px auto; text-align: center; }

.session-head { display: flex; align-items: flex-end; gap: 16px; }
.session-head h2 { margin: 0; font-size: 30px; letter-spacing: -0.8px; line-height: 1.25; }
.round { margin-left: auto; }
.conditions { margin: 6px 0 12px; color: var(--muted); font-size: 13px; }
.conditions b { color: var(--text); font-weight: 600; }

.filters {
  display: flex; flex-wrap: wrap; gap: 16px 30px; align-items: flex-end;
  padding: 20px 24px; border: 0; border-radius: 20px; background: var(--bg); box-shadow: var(--shadow);
}
.fgroup { display: flex; flex-direction: column; gap: 6px; }
.fgroup.fend { flex-direction: row; align-items: center; gap: 16px; margin-left: auto; }
.flabel { font-size: 12px; color: var(--muted); font-weight: 600; }
.flabel .sub { font-weight: 400; }
.fval { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.fval input { width: 110px; padding: 6px 8px; border-radius: 8px; text-align: right; }
.seg { display: inline-flex; gap: 2px; padding: 3px; border-radius: 10px; background: var(--seg-bg); }
.seg button { border: 0; background: transparent; border-radius: 8px; padding: 5px 14px; font-size: 13px; color: var(--muted); white-space: nowrap; }
.seg button:hover { color: var(--text); }
.rating-pick { display: inline-flex; gap: 2px; padding: 4px 0; cursor: pointer; user-select: none; }
.rstar { position: relative; display: inline-block; font-size: 26px; line-height: 1; }
.rbase { color: var(--line); }
.rfill { position: absolute; left: 0; top: 0; width: 0; overflow: hidden; white-space: nowrap; color: #f5a524; }
.seg button.on { background: var(--violet); color: #fff; font-weight: 700; }
.filter-line { display: flex; align-items: center; gap: 12px; margin: 10px 0; }
.check { display: flex; gap: 4px; align-items: center; white-space: nowrap; }

.sort-line { display: flex; align-items: center; gap: 10px; margin: 4px 0 10px; flex-wrap: wrap; }
.sort-line #sortNote { font-size: 12px; }
.seg button:disabled { opacity: 0.4; cursor: not-allowed; }
.tabs { display: flex; gap: 4px; margin: 8px 0; }
.tabs button.on { background: var(--text); color: var(--bg); border-color: var(--text); }

table.grid { border-collapse: collapse; width: 100%; font-size: 13px; }
.grid th, .grid td { border-bottom: 1px solid var(--line); padding: 6px 8px; text-align: left; vertical-align: top; }
.grid th { position: sticky; top: 52px; background: var(--panel); font-weight: 600; white-space: nowrap; z-index: 1; }
.grid th.sortable { cursor: pointer; }
.grid th.sortable:hover { color: var(--accent); }
.grid td.num, .grid th.num { text-align: right; white-space: nowrap; }
.grid tr.prod { cursor: pointer; }
.grid tr.prod:hover td { background: var(--row-open); }
.grid tr.prod.pass td:first-child { box-shadow: inset 3px 0 var(--pass); }
.grid tr.prod.out td { color: var(--out); }
.grid tr.open td { background: var(--row-open); }
.grid a { color: var(--accent); text-decoration: none; }
.grid a:hover { text-decoration: underline; }
.name { max-width: 420px; }
.sub { font-size: 12px; color: var(--muted); }
.unknown { color: var(--muted); font-style: italic; }
.est { color: var(--est); }
.tag { display: inline-block; font-size: 11px; padding: 0 5px; border-radius: 3px; border: 1px solid currentColor; margin-left: 4px; font-style: normal; }
.passmark { color: var(--pass); font-weight: 600; }
.reason { font-size: 12px; }

.detail td { background: var(--row-open); padding: 10px 14px 14px 30px; }
.basis { font-size: 13px; margin-bottom: 8px; }
.basis div { margin: 2px 0; }
table.opts { border-collapse: collapse; width: 100%; font-size: 12px; background: var(--bg); }
.opts th, .opts td { border: 1px solid var(--line); padding: 4px 6px; }
.opts th { background: var(--panel); font-weight: 600; }

.kw-card { border: 1px solid var(--line); border-radius: 8px; margin: 8px 0; }
.kw-head { display: flex; gap: 16px; align-items: baseline; padding: 10px 14px; cursor: pointer; flex-wrap: wrap; }
.kw-head:hover { background: var(--row-open); }
.kw-head h3 { margin: 0; font-size: 15px; }
.kw-stat { font-size: 13px; }
.kw-body { padding: 0 8px 8px; }
.grid td.nowrap { white-space: nowrap; }
.kw-body { overflow-x: auto; }
.kw-body .grid th { top: 0; }

/* 좁은 화면(휴대폰): 트리를 위로, 표는 옆으로 밀어 본다 */
@media (max-width: 800px) {
  .top { padding: 8px 16px; flex-wrap: wrap; }
  #loadMsg { display: none; }
  .layout { flex-direction: column; }
  .side { width: auto; border-right: none; border-bottom: 1px solid var(--line); max-height: 180px; }
  main { padding: 12px 16px 40px; }
  .session-head { flex-wrap: wrap; }
  .grid th { top: 0; }
  #productsView { overflow-x: auto; }
  .fgroup.fend { margin-left: 0; }
  .seg { flex-wrap: wrap; }
}
.login { display: flex; flex-direction: column; gap: 8px; max-width: 280px; margin: 12px auto; }
.login input { padding: 8px 10px; }

/* 상품 카드 */
.cards { display: flex; flex-direction: column; gap: 14px; }
.pcard { border: 2px solid var(--g0); border-radius: 18px; background: var(--bg); overflow: hidden; box-shadow: var(--shadow); }
.pcard.g4 { border-color: var(--gA); }
.pcard.g3 { border-color: var(--gB); }
.pcard.g2 { border-color: var(--gC); }
.pcard.g1 { border-color: var(--gD); }
.pcard.out { opacity: 0.72; }
.pcard.out:hover, .pcard.open { opacity: 1; }
.pc-main {
  display: grid; grid-template-columns: 76px minmax(220px, 1.4fr) minmax(360px, 2fr) 150px; gap: 16px;
  align-items: center; padding: 12px 16px; cursor: pointer;
}
.pc-main:hover { background: var(--row-open); }
.pc-rank { text-align: center; }
.rank-big { font-size: 22px; font-weight: 700; line-height: 1.1; }
.pc-rank .sub { font-size: 11px; }
.pc-title a { color: var(--text); font-weight: 600; text-decoration: none; }
.pc-title a:hover { color: var(--accent); text-decoration: underline; }
.pc-title .sub { margin: 2px 0 6px; }
.pc-metrics { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 16px; }
.metric { min-width: 0; }
.m-label { font-size: 11px; color: var(--muted); }
.m-value { font-size: 15px; white-space: nowrap; }
.m-value b { font-weight: 700; }
.m-note { font-size: 11px; color: var(--muted); min-height: 15px; }
.bar { height: 6px; border-radius: 3px; background: var(--track); margin: 4px 0 2px; overflow: hidden; }
.bar.empty { background: repeating-linear-gradient(90deg, var(--track) 0 6px, transparent 6px 10px); }
.bar-fill { display: block; height: 100%; border-radius: 3px; min-width: 3px; }
.bar-fill.good { background: var(--good); }
.bar-fill.bad { background: var(--bad); }
.bar-fill.neutral { background: var(--neutral); }
.stars { display: inline-flex; align-items: center; gap: 6px; }
.stars-base { position: relative; color: var(--line); letter-spacing: 1px; font-size: 16px; }
.stars-fill { position: absolute; left: 0; top: 0; overflow: hidden; white-space: nowrap; color: #f5a524; }
.pc-side { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; text-align: right; }
.pc-verdict { font-size: 12px; }
.pc-verdict .reason { color: var(--muted); }
.pc-detail { border-top: 1px solid var(--line); background: var(--row-open); padding: 12px 16px 16px; overflow-x: auto; }
.empty-list { padding: 20px; text-align: center; }

.grade { display: inline-block; min-width: 22px; text-align: center; font-weight: 700; font-size: 12px; padding: 1px 6px; border-radius: 5px; color: #fff; background: var(--g0); }
.grade.big { font-size: 20px; min-width: 40px; padding: 4px 10px; border-radius: 8px; }
.grade.g4 { background: var(--gA); }
.grade.g3 { background: var(--gB); }
.grade.g2 { background: var(--gC); }
.grade.g1 { background: var(--gD); }
.grade.g0 { color: var(--muted); }

/* 배송 배지: 쿠팡 화면 표시를 글자·색으로 흉내 낸 것 */
.dlvs { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.dlv { display: inline-flex; align-items: center; gap: 3px; font-size: 12px; line-height: 1; padding: 3px 6px; border-radius: 4px; white-space: nowrap; }
.dlv i { font-style: italic; font-weight: 800; letter-spacing: -0.3px; }
.dlv.rocket { color: var(--rocket); background: color-mix(in srgb, var(--rocket) 10%, transparent); }
.dlv.seller-rocket { color: var(--rocket); border: 1px solid color-mix(in srgb, var(--rocket) 45%, transparent); }
.dlv.vendor { color: var(--muted); border: 1px solid var(--line); }
.d-count { font-size: 11px; font-weight: 600; margin-left: 3px; opacity: 0.8; }

@media (max-width: 1100px) {
  .pc-main { grid-template-columns: 64px 1fr 110px; }
  .pc-metrics { grid-column: 1 / -1; order: 3; }
}
@media (max-width: 600px) {
  .pc-main { grid-template-columns: 52px 1fr; }
  .pc-side { grid-column: 1 / -1; flex-direction: row; justify-content: space-between; align-items: center; order: 4; }
  .pc-metrics { grid-template-columns: 1fr 1fr; }
}

/* 필터 등급 버튼: 그 등급 색. 고른 버튼은 색을 꽉 채우고, 나머지는 흐리게 */
#gradeSeg { gap: 4px; }
#gradeSeg button[data-v="2"] { --gc: var(--gC); }
#gradeSeg button[data-v="3"] { --gc: var(--gB); }
#gradeSeg button[data-v="4"] { --gc: var(--gA); }
#gradeSeg button[data-v]:not([data-v=""]) { background: color-mix(in srgb, var(--gc) 7%, transparent); color: color-mix(in srgb, var(--gc) 45%, var(--muted)); font-weight: 400; }
#gradeSeg button[data-v]:not([data-v=""]):hover { background: color-mix(in srgb, var(--gc) 18%, transparent); }
#gradeSeg button[data-v]:not([data-v=""]).on { background: var(--gc); color: #fff; font-weight: 700; box-shadow: 0 1px 4px color-mix(in srgb, var(--gc) 50%, transparent); }