/* 색은 역할 이름(토큰)으로만 써요. 다크 모드는 같은 색 계열에서 고른 값이에요. */
:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --hover: rgba(11, 11, 11, 0.04);
  --good-text: #006300;
  --bad-text: #b42323;
  /* 마켓 색: 쿠팡 = 1번, 네이버 = 2번 (항상 고정) */
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  /* 크기를 나타내는 한 가지 색 (연함 → 진함) */
  --seq-0: #f0efec;
  --seq-1: #cde2fb;
  --seq-2: #9ec5f4;
  --seq-3: #6da7ec;
  --seq-4: #3987e5;
  --seq-5: #256abf;
  --seq-6: #184f95;
  --seq-7: #0d366b;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --text-primary: #f0efec;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --hover: rgba(255, 255, 255, 0.05);
    --good-text: #0ca30c;
    --bad-text: #e66767;
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --seq-0: #262624;
    --seq-1: #104281;
    --seq-2: #184f95;
    --seq-3: #1c5cab;
    --seq-4: #256abf;
    --seq-5: #3987e5;
    --seq-6: #6da7ec;
    --seq-7: #9ec5f4;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: #1a1a19;
  --text-primary: #f0efec;
  --text-secondary: #c3c2b7;
  --text-muted: #898781;
  --grid: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.10);
  --hover: rgba(255, 255, 255, 0.05);
  --good-text: #0ca30c;
  --bad-text: #e66767;
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --seq-0: #262624;
  --seq-1: #104281;
  --seq-2: #184f95;
  --seq-3: #1c5cab;
  --seq-4: #256abf;
  --seq-5: #3987e5;
  --seq-6: #6da7ec;
  --seq-7: #9ec5f4;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--page);
  color: var(--text-primary);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", "Malgun Gothic", sans-serif;
  padding: 0 16px 48px;
  max-width: 1200px;
  margin: 0 auto;
}
h1 { font-size: 20px; margin: 0; font-weight: 650; }
h2 { font-size: 16px; margin: 0 0 4px; font-weight: 600; }
.muted { color: var(--text-muted); margin: 0; }
.small { font-size: 13px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.top { padding: 20px 0 12px; }

.filters { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 4px 0 12px; }
.seg { display: inline-flex; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 3px; }
.seg button, .tabs button, select {
  font: inherit; color: var(--text-secondary); background: none; border: 0; cursor: pointer;
}
.seg button { padding: 6px 14px; border-radius: 7px; display: inline-flex; align-items: center; gap: 6px; }
.seg button:hover { background: var(--hover); }
.seg button[aria-pressed="true"] { background: var(--page); color: var(--text-primary); font-weight: 600; box-shadow: 0 0 0 1px var(--border); }
select { padding: 7px 10px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); color: var(--text-primary); }

.key { display: inline-block; width: 10px; height: 10px; border-radius: 3px; }
.key-coupang { background: var(--series-1); }
.key-naver { background: var(--series-2); }

.tabs { display: flex; gap: 4px; overflow-x: auto; border-bottom: 1px solid var(--grid); margin-bottom: 16px; }
.tabs button { padding: 10px 12px; white-space: nowrap; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs button:hover { color: var(--text-primary); }
.tabs button[aria-selected="true"] { color: var(--text-primary); font-weight: 600; border-bottom-color: var(--text-primary); }

.message { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.message h2 { margin-bottom: 8px; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(12, 1fr); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; min-width: 0; }
.span-12 { grid-column: span 12; }
.span-8 { grid-column: span 8; }
.span-6 { grid-column: span 6; }
.span-4 { grid-column: span 4; }
.span-3 { grid-column: span 3; }
@media (max-width: 900px) {
  .span-8, .span-6, .span-4 { grid-column: span 12; }
  .span-3 { grid-column: span 6; }
}
@media (max-width: 520px) { .span-3 { grid-column: span 12; } }

.card-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.card-head p { margin: 0; }
.chart { position: relative; height: 280px; }
.chart.tall { height: 420px; }

/* 숫자 카드 */
.stat .label { color: var(--text-secondary); font-size: 14px; }
.stat .value { font-size: 28px; font-weight: 650; margin: 2px 0; white-space: nowrap; }
.stat.hero .value { font-size: clamp(32px, 3.6vw, 44px); line-height: 1.1; }
.stat .delta { font-size: 13px; color: var(--text-muted); }
.delta .up-good, .delta .down-good { color: var(--good-text); font-weight: 600; }
.delta .up-bad, .delta .down-bad { color: var(--bad-text); font-weight: 600; }

.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--text-secondary); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }

/* 표 */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th { color: var(--text-muted); font-weight: 500; font-size: 13px; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: var(--hover); }
details summary { cursor: pointer; color: var(--text-secondary); font-size: 13px; margin-top: 10px; }

/* 요일 × 시간 표 */
.heat { display: grid; grid-template-columns: 28px repeat(24, minmax(14px, 1fr)); gap: 2px; font-size: 11px; color: var(--text-muted); }
.heat .cell { height: 22px; border-radius: 3px; }
.heat .hlabel { text-align: center; }
.heat-scale { display: flex; align-items: center; gap: 4px; font-size: 12px; color: var(--text-muted); margin-top: 10px; }
.heat-scale i { width: 18px; height: 10px; border-radius: 2px; display: inline-block; }

.note { font-size: 13px; color: var(--text-muted); margin: 8px 0 0; }

.tip {
  position: fixed; z-index: 10; pointer-events: none; background: var(--surface); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px; font-size: 13px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

/* 로그인 페이지 */
.login-page { display: grid; place-items: center; min-height: 100vh; padding: 16px; }
.login-card { width: 100%; max-width: 360px; display: grid; gap: 14px; padding: 28px 24px; }
.login-card h1 { font-size: 20px; }
.login-card label { display: grid; gap: 6px; font-size: 14px; color: var(--text-secondary); }
.login-card input {
  font: inherit; color: var(--text-primary); background: var(--page);
  border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px;
}
.login-card input:focus { outline: 2px solid var(--series-1); outline-offset: 1px; }
.login-card button {
  font: inherit; font-weight: 600; color: #fff; background: var(--series-1);
  border: 0; border-radius: 8px; padding: 11px; cursor: pointer;
}
.login-card button:disabled { opacity: 0.6; cursor: default; }
.login-error { color: var(--bad-text); font-size: 14px; margin: 0; }

.top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.logout { font-size: 13px; color: var(--text-secondary); text-decoration: none; padding: 6px 10px; border: 1px solid var(--border); border-radius: 8px; }
.logout:hover { background: var(--hover); }

.title h1 { font-size: 22px; }
.title .subtitle { margin-top: 2px; }