:root {
  --bg: #0a0a0c; --card: #141417; --border: #2a2a31;
  --accent: #ff8a00; --accent-2: #ffb340;
  --text: #f4f4f5; --muted: #9a9aa3;
  --danger: #ff4d4d; --ok: #22c55e;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
body {
  background: var(--bg); color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif; min-height: 100vh;
}

/* login */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 40px 36px; width: 360px; display: flex; flex-direction: column; gap: 16px;
}
.login-logo { font-size: 22px; font-weight: 700; letter-spacing: .5px; }
.login-logo span { color: var(--accent); }
.login-card h1 { font-size: 20px; font-weight: 600; }
.login-card input {
  background: #0f0f12; border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 14px; color: var(--text); font-size: 15px;
}
.login-card button {
  background: var(--accent); color: #0a0a0c; border: none; border-radius: 10px;
  padding: 12px; font-size: 15px; font-weight: 600; cursor: pointer;
}
.login-card button:hover { background: var(--accent-2); }
.login-error { color: var(--danger); font-size: 13px; }

/* header */
.admin-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px; border-bottom: 1px solid var(--border);
}
.admin-logo { font-size: 18px; font-weight: 700; }
.admin-logo span { color: var(--accent); }
.admin-sub { font-size: 13px; color: var(--muted); font-weight: 400; }
.admin-actions { display: flex; gap: 10px; }
.ghost {
  background: transparent; border: 1px solid var(--border); color: var(--muted);
  border-radius: 8px; padding: 7px 14px; cursor: pointer; font-size: 14px;
}
.ghost:hover { color: var(--text); border-color: var(--accent); }

/* tabs */
.admin-tabs { display: flex; gap: 4px; padding: 0 28px; border-bottom: 1px solid var(--border); }
.tab {
  background: none; border: none; color: var(--muted); padding: 14px 18px;
  font-size: 15px; cursor: pointer; border-bottom: 2px solid transparent;
}
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.tab-panel { padding: 24px 28px; }
.toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.toolbar h2 { font-size: 17px; font-weight: 600; }
.toolbar-actions { display: flex; gap: 10px; align-items: center; }
.search-input {
  background: #0f0f12; border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 12px; color: var(--text); font-size: 14px; width: 220px;
}
.search-input:focus { outline: none; border-color: var(--accent); }
.primary {
  background: var(--accent); color: #0a0a0c; border: none; border-radius: 8px;
  padding: 9px 18px; font-size: 14px; font-weight: 600; cursor: pointer;
}
.primary:hover { background: var(--accent-2); }

/* table */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td {
  text-align: left; padding: 12px; border-bottom: 1px solid var(--border); font-size: 14px;
}
.data-table th { color: var(--muted); font-weight: 500; font-size: 13px; }
.cell-title { max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cell-actions { display: flex; gap: 6px; }
.mini {
  background: var(--card); border: 1px solid var(--border); color: var(--text);
  border-radius: 6px; padding: 4px 10px; font-size: 13px; cursor: pointer;
}
.mini:hover { border-color: var(--accent); }
.mini.danger:hover { border-color: var(--danger); color: var(--danger); }
.tag { padding: 2px 8px; border-radius: 5px; font-size: 12px; }
.tag.ok { background: rgba(34, 197, 94, .15); color: var(--ok); }
.tag.off { background: rgba(255, 77, 77, .15); color: var(--danger); }

/* modal */
.modal {
  position: fixed; inset: 0; background: rgba(0, 0, 0, .7);
  display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px;
}
.modal-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  width: 520px; max-width: 100%; max-height: 90vh; overflow: auto; padding: 24px;
}
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.modal-head h3 { font-size: 18px; font-weight: 600; }
.close { background: none; border: none; color: var(--muted); font-size: 26px; cursor: pointer; line-height: 1; }
.close:hover { color: var(--text); }
#item-form { display: flex; flex-direction: column; gap: 14px; }
#item-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
#item-form input, #item-form select, #item-form textarea {
  background: #0f0f12; border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; color: var(--text); font-size: 14px;
}
#item-form .check { flex-direction: row; align-items: center; gap: 10px; color: var(--text); }
#item-form .check input { width: 16px; height: 16px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 8px; }
.cover-input-row { display: flex; gap: 8px; align-items: center; }
.cover-input-row input[type="url"] { flex: 1; }
.cover-input-row .upload-btn { flex-shrink: 0; white-space: nowrap; }