:root {
  --bg: #f7fbff;
  --bg-2: #ffffff;
  --surface: #ffffff;
  --surface-soft: #edf5ff;
  --text: #10213e;
  --muted: #3c4d6b;
  --primary: #1459d9;
  --primary-strong: #0d3e9a;
  --border: #b8d4ff;
  --success: #0a7b43;
  --danger: #b42318;
  --warning: #b54708;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Noto Sans KR", "Segoe UI", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg), var(--bg-2) 62%);
}

a { color: var(--primary-strong); }

a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 3px solid #89b9ff;
  outline-offset: 2px;
}

header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary-strong);
}

.brand-sub {
  color: var(--muted);
}

.nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav a {
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: 10px;
  background: var(--surface-soft);
  font-weight: 700;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
  display: grid;
  gap: 16px;
}

.hero {
  background: linear-gradient(140deg, #ffffff, #eaf3ff);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: 32px;
  color: var(--primary-strong);
}

.hero p {
  margin: 0;
  color: var(--muted);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

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

.card h2 {
  margin: 0 0 10px;
  color: var(--primary-strong);
  font-size: 24px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  color: var(--primary-strong);
}

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

.row {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr 1fr;
}

label {
  display: block;
  margin-bottom: 6px;
  font-weight: 700;
}

input, select, textarea, button {
  font: inherit;
}

input, select, textarea {
  width: 100%;
  border: 1px solid #86b4ff;
  border-radius: 10px;
  padding: 10px;
  background: white;
  color: var(--text);
}

button {
  border: none;
  border-radius: 10px;
  padding: 10px 14px;
  background: var(--primary);
  color: white;
  cursor: pointer;
  font-weight: 800;
}

button.secondary {
  background: var(--surface-soft);
  color: var(--primary-strong);
  border: 1px solid var(--border);
}

button.warning {
  background: #ffefd8;
  border: 1px solid #f7b27a;
  color: #7a2e0e;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.status {
  margin-top: 8px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #eff8ff;
}

.status.success {
  background: #ecfdf3;
  border-color: #abefc6;
  color: var(--success);
}

.status.error {
  background: #fef3f2;
  border-color: #fecdca;
  color: var(--danger);
}

.status.warning {
  background: #fff8eb;
  border-color: #ffd7a3;
  color: var(--warning);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  border-bottom: 1px solid var(--border);
  padding: 8px;
  vertical-align: top;
  text-align: left;
}

.menu-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.menu-item {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  padding: 16px;
}

.menu-item h3 { margin: 0 0 6px; }
.menu-item p { margin: 0 0 12px; color: var(--muted); }

.inline {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.check {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin-top: 10px;
}

.check input {
  width: auto;
  margin-top: 4px;
}

.upload-progress {
  margin-top: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  background: #f5f9ff;
}

.upload-progress progress {
  width: 100%;
  height: 14px;
}

footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 8px 20px 20px;
  color: var(--muted);
}

@media (max-width: 980px) {
  .row,
  .grid-3,
  .menu-grid {
    grid-template-columns: 1fr;
  }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}