:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1c2b36;
  --muted: #6b7b88;
  --accent: #3a7bd5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Noto Sans SC', sans-serif;
  background: var(--bg);
  color: var(--text);
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 6vw;
  background: #0f172a;
  color: #fff;
}

.admin-header nav {
  display: flex;
  gap: 16px;
  align-items: center;
}

.admin-header a {
  color: #cbd5f5;
  text-decoration: none;
}

.admin-header form button {
  background: transparent;
  color: #cbd5f5;
  border: 1px solid rgba(203, 213, 245, 0.4);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
}

.admin-page {
  padding: 32px 6vw 80px;
}

.page-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.search {
  display: flex;
  gap: 8px;
}

.search input {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #d5dde6;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  background: var(--card);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

th, td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid #eef2f7;
}

th {
  background: #f1f5f9;
  font-weight: 600;
}

.link {
  color: var(--accent);
  text-decoration: none;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.form-section {
  background: var(--card);
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 10px;
}

.form-section input,
.form-section select,
.form-section textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #d5dde6;
  font-family: inherit;
}

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

.primary {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 10px;
  cursor: pointer;
}

.reset-form {
  margin-top: 20px;
  background: var(--card);
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.reset-form input {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #d5dde6;
}

.admin-auth {
  display: grid;
  place-items: center;
  padding: 40px 6vw 80px;
}

.auth-card {
  background: var(--card);
  padding: 32px;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  width: min(420px, 90vw);
}

.auth-card form {
  display: grid;
  gap: 12px;
}

.auth-card input {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #d5dde6;
}

.auth-card button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 10px;
  cursor: pointer;
}

.flash {
  margin: 16px 0;
  padding: 10px 12px;
  border-radius: 8px;
}

.flash-error { background: #ffe6e6; color: #b63e3e; }
.flash-success { background: #e7fff5; color: #207a63; }

.admin-footer {
  padding: 20px 6vw;
  text-align: center;
  color: var(--muted);
}