:root {
  --bg: #eef1f5;
  --panel: #ffffff;
  --ink: #172132;
  --muted: #667085;
  --line: #d7dde6;
  --gold: #b88942;
  --red: #b54d4a;
  --green: #287a55;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  letter-spacing: 0;
}

button,
input,
textarea {
  font: inherit;
}

body:not(.admin-authed) .admin-header,
body:not(.admin-authed) .admin-layout {
  display: none;
}

.admin-login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(23, 33, 50, 0.86), rgba(112, 141, 175, 0.66)),
    #172132;
}

body.admin-authed .admin-login {
  display: none;
}

.admin-login-panel {
  width: min(420px, 92vw);
  padding: 30px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.26);
}

.admin-login-panel p {
  margin: 0 0 6px;
  color: var(--gold);
  font-size: 13px;
  text-transform: uppercase;
}

.admin-login-panel h1 {
  margin: 0 0 22px;
  font-size: 28px;
  font-weight: 500;
}

.admin-login-panel label {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.admin-login-panel button {
  width: 100%;
  min-height: 42px;
  color: #172132;
  background: #d5ad68;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 22px 5vw;
  background: #172132;
  color: #fff;
}

.admin-header p {
  margin: 0 0 4px;
  color: #d5ad68;
  font-size: 13px;
}

.admin-header h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 500;
}

.admin-header nav {
  display: flex;
  gap: 12px;
  align-items: center;
}

.admin-header a,
.admin-header button,
.small-button,
.danger-button {
  min-height: 38px;
  padding: 9px 14px;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
}

.admin-header a {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.24);
}

.admin-header button,
.small-button {
  color: #172132;
  background: #d5ad68;
}

.danger-button {
  color: #fff;
  background: var(--red);
}

.admin-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  width: min(1200px, 92vw);
  margin: 24px auto;
}

.tabs,
.editor {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.tabs {
  position: sticky;
  top: 20px;
  align-self: start;
  padding: 10px;
}

.tab {
  width: 100%;
  min-height: 42px;
  margin-bottom: 6px;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-radius: 6px;
  text-align: left;
  cursor: pointer;
}

.tab.active,
.tab:hover {
  background: #f0e4d2;
}

.editor {
  min-height: 620px;
  padding: 22px;
}

.status {
  margin-bottom: 18px;
  padding: 12px 14px;
  color: var(--muted);
  background: #f7f8fa;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.status.ok {
  color: var(--green);
}

.status.error {
  color: var(--red);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field {
  display: grid;
  gap: 7px;
  margin-bottom: 14px;
}

.field.full {
  grid-column: 1 / -1;
}

label {
  color: #344054;
  font-size: 14px;
}

input,
textarea {
  width: 100%;
  padding: 10px 11px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  outline: none;
}

textarea {
  min-height: 96px;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(184, 137, 66, 0.15);
}

.list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.list-header h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 500;
}

.edit-card {
  margin-bottom: 14px;
  padding: 16px;
  background: #fbfcfe;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.edit-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.edit-card-head strong {
  color: var(--gold);
}

.requirements {
  display: grid;
  gap: 8px;
}

.invite-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.invite-card p {
  margin: 6px 0 0;
  color: var(--muted);
}

@media (max-width: 760px) {
  .admin-header,
  .admin-header nav {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-layout,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .tabs {
    position: static;
  }
}