@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css");

:root {
  color-scheme: light dark;
  --background: #f4f6f8;
  --panel: #ffffff;
  --line: #e4e8ec;
  --ink: #1b1f2e;
  --sub: #5a6472;
  --primary: #1565c0;
  --primary-weak: #e8f1fb;
  --good: #2e7d32;
  --bad: #b42318;
  --warn: #9a6700;
  --head: #fafbfc;
  --row-line: #eef1f4;
  --field-line: #c9d2dc;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #14181f;
    --panel: #1c222b;
    --line: #2c3440;
    --ink: #e8ecf1;
    --sub: #a3adba;
    --primary: #5aa2ee;
    --primary-weak: #1d3147;
    --good: #6cc070;
    --bad: #f28b82;
    --warn: #e0b34d;
    --head: #222934;
    --row-line: #2c3440;
    --field-line: #3b4553;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--background);
  color: var(--ink);
  font: 16px/1.55 "Pretendard Variable", "Pretendard", "Malgun Gothic", sans-serif;
  word-break: keep-all;
  text-wrap: pretty;
}

h1 { margin: 0; font-size: 22px; }
h2 { margin: 28px 0 10px; font-size: 17px; }
button, input { font: inherit; }

button {
  white-space: nowrap;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
}

button.primary { border-color: var(--primary); background: var(--primary); color: #fff; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 1px; }
button:disabled { opacity: .6; cursor: default; }

.sub { color: var(--sub); font-size: 14px; font-weight: 400; }
.error { margin: 12px 0 0; color: var(--bad); font-size: 14px; }
.error:empty { display: none; }

.login {
  width: calc(100% - 32px);
  max-width: 360px;
  margin: 12dvh auto 0;
  padding: 28px 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}

.login h1 { margin-bottom: 2px; }
.login .sub { margin: 0 0 14px; }
.login label { display: block; margin-top: 12px; color: var(--sub); font-size: 14px; }
.login input { width: 100%; height: 44px; margin-top: 4px; padding: 0 10px; border: 1px solid var(--field-line); border-radius: 7px; background: var(--panel); color: var(--ink); }
.login button { width: 100%; height: 44px; margin-top: 18px; }

.page { max-width: 1000px; margin: 0 auto; padding: 24px 16px 48px; }
.top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.top p { margin: 2px 0 0; }

.drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 36px 16px;
  border: 2px dashed var(--field-line);
  border-radius: 12px;
  background: var(--panel);
  text-align: center;
  cursor: pointer;
}

.drop span { color: var(--sub); font-size: 14px; }
.drop.over { border-color: var(--primary); background: var(--primary-weak); }

.progress { margin-top: 14px; }
.progress-track { height: 8px; overflow: hidden; border-radius: 4px; background: var(--line); }
.progress-bar { width: 0; height: 100%; background: var(--primary); }
.progress p { margin: 6px 0 0; color: var(--sub); font-size: 14px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 15px; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--row-line); text-align: left; vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
th { background: var(--head); color: var(--sub); font-size: 13px; white-space: nowrap; }
#problemSection table { min-width: 0; }
#problemSection td { overflow-wrap: anywhere; }
.number { text-align: right; font-variant-numeric: tabular-nums; }
.small { display: block; color: var(--sub); font-size: 13px; }
.good { color: var(--good); }
.bad { color: var(--bad); }
.warn { color: var(--warn); }
.empty { color: var(--sub); text-align: center; }