/* admin/style.css - 管理员后台 */
:root {
    --bg: #0f1115;
    --card: #1a1d24;
    --card-2: #232732;
    --fg: #e9ecef;
    --muted: #9aa3b2;
    --primary: #4f8cff;
    --primary-h: #3b78ee;
    --danger: #ff5d5d;
    --ok: #2dd4a0;
    --warn: #f5b942;
    --bd: #2c313c;
    --radius: 10px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
input, select, textarea, button { font-family: inherit; font-size: 14px; }
input[type=text], input[type=password], input[type=number], input[type=email], input:not([type]), select, textarea {
    width: 100%; padding: 9px 12px; border: 1px solid var(--bd); border-radius: 8px;
    background: var(--card-2); color: var(--fg); font-size: 14px; outline: none;
    transition: border-color .15s, background .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); }
.btn { display: inline-block; padding: 8px 14px; border: 1px solid var(--bd); border-radius: 8px;
    background: var(--card-2); color: var(--fg); cursor: pointer; font-size: 14px; transition: background .15s, border-color .15s; }
.btn:hover { border-color: var(--primary); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-h); border-color: var(--primary-h); }
.btn.danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn.danger:hover { background: rgba(255,93,93,.1); }
.btn.small { padding: 4px 10px; font-size: 12px; }
.btn.block { display: block; width: 100%; padding: 12px; font-size: 16px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.danger-text { color: var(--danger); font-weight: 600; }

.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.login-box {
    background: var(--card); border: 1px solid var(--bd); border-radius: 14px;
    padding: 30px 28px; max-width: 360px; width: 100%;
}
.login-box h1 { margin: 0 0 6px; font-size: 22px; text-align: center; }
.login-box form { display: grid; gap: 12px; margin-top: 20px; }
.login-box label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
.login-box button { margin-top: 6px; }
.login-box p { text-align: center; margin: 14px 0 0; }
.login-box .err-msg { background: rgba(255,100,100,.15); color: var(--err); border: 1px solid rgba(255,100,100,.3); padding: 8px 12px; border-radius: 8px; font-size: 13px; margin: 8px 0 0; text-align: center; }

.adm-topbar {
    display: flex; align-items: center; gap: 12px;
    background: var(--card); border-bottom: 1px solid var(--bd);
    padding: 12px 20px; position: sticky; top: 0; z-index: 10;
}
.adm-topbar .brand { font-weight: 700; font-size: 16px; }
.adm-topbar .spacer { flex: 1; }
.adm-topbar .user { color: var(--muted); font-size: 13px; }
.adm-tabs {
    display: flex; gap: 4px;
    background: var(--card); border-bottom: 1px solid var(--bd);
    padding: 0 20px; overflow-x: auto;
}
.adm-tabs a {
    padding: 12px 16px; color: var(--muted); border-bottom: 2px solid transparent;
    font-size: 14px; white-space: nowrap;
}
.adm-tabs a:hover { color: var(--fg); text-decoration: none; }
.adm-tabs a.active { color: var(--primary); border-bottom-color: var(--primary); }
.adm-main { padding: 24px 20px; max-width: 1200px; margin: 0 auto; }
.adm-title { margin: 0 0 18px; font-size: 22px; }
.adm-card {
    background: var(--card); border: 1px solid var(--bd); border-radius: 12px;
    padding: 18px; margin-bottom: 18px;
}
.adm-card h3 { margin: 0 0 12px; font-size: 16px; }
.adm-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 20px; }
.adm-stats .stat {
    background: var(--card); border: 1px solid var(--bd); border-radius: 12px;
    padding: 16px; text-align: center;
}
.adm-stats .num { font-size: 32px; font-weight: 700; color: var(--primary); }
.adm-stats .lbl { color: var(--muted); font-size: 13px; margin-top: 4px; }
.quick-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.adm-table-wrap { overflow-x: auto; }
.adm-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.adm-table th, .adm-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--bd); vertical-align: middle; }
.adm-table th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; }
.adm-table tr:hover { background: rgba(255,255,255,.02); }
.inline-form { display: inline-flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.inline-form input { width: auto; }
.err-msg { background: rgba(255,100,100,.15); color: var(--err); border: 1px solid rgba(255,100,100,.3); padding: 10px 14px; border-radius: 8px; font-size: 14px; margin-bottom: 16px; }
.ok-msg { background: rgba(45,212,160,.15); color: var(--ok); border: 1px solid rgba(45,212,160,.3); padding: 10px 14px; border-radius: 8px; font-size: 14px; margin-bottom: 16px; }
label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); margin-bottom: 12px; }
@media (max-width: 640px) {
    .adm-stats { grid-template-columns: repeat(2, 1fr); }
    .adm-table th, .adm-table td { padding: 8px 6px; font-size: 13px; }
}