:root {
  --ink: #161616;
  --muted: #5e594f;
  --paper: #f6f3ee;
  --line: #e4ddd3;
  --blue: #2457c5;
  color-scheme: light;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Pretendard", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.5;
}
button, input, select, textarea { font: inherit; color: inherit; }
h1 { margin: 0; font-size: 28px; letter-spacing: -0.03em; }
a { color: inherit; }

.login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login form, dialog form {
  width: min(440px, 100%);
  display: grid;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--line);
  padding: 28px;
}
.mark { margin: 0; letter-spacing: 0.14em; font-size: 13px; }
.hint, .error { margin: 0; color: var(--muted); font-size: 14px; }
.error { color: #9d1c22; }
label { display: grid; gap: 6px; font-size: 14px; }
input, select, textarea {
  width: 100%;
  border: 1px solid #d9d2c8;
  background: #fff;
  padding: 10px 12px;
}
textarea { min-height: 96px; resize: vertical; }
button, .text-btn {
  border: 0;
  background: var(--ink);
  color: #fff;
  min-height: 42px;
  padding: 0 14px;
  cursor: pointer;
}
.ghost, .text-btn {
  background: transparent;
  color: var(--ink);
  border: 1px solid #d9d2c8;
}
.check { grid-template-columns: 18px 1fr; align-items: center; }
.check input { width: 18px; }

#app { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
aside {
  padding: 24px 18px;
  background: #fff;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
aside nav { display: grid; gap: 6px; margin: 18px 0; }
aside nav button { text-align: left; background: transparent; color: var(--ink); }
aside nav button.is-on { background: var(--ink); color: #fff; }
main { padding: 28px; }
main header { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 18px; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { padding: 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
th { font-size: 13px; color: var(--muted); font-weight: 600; }
td img { width: 72px; height: 54px; object-fit: cover; background: #eee; }
.row-actions { display: flex; gap: 6px; }
.row-actions button { min-height: 34px; }
.empty { padding: 28px; background: #fff; border: 1px solid var(--line); }
dialog { border: 0; padding: 0; background: transparent; width: min(640px, 94vw); max-height: calc(100vh - 24px); }
dialog form { max-height: calc(100vh - 24px); overflow: auto; }
dialog::backdrop { background: rgba(12, 12, 12, 0.45); }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; }
.thumb { width: 160px; height: 100px; object-fit: cover; background: #eee; }

@media (max-width: 800px) {
  #app { grid-template-columns: 1fr; }
  aside nav { grid-template-columns: 1fr 1fr; }
  table { display: block; overflow-x: auto; }
}