/* admin styles — refined */
:root{
  --bg:#ffffff;          /* 背景 */
  --card:#ffffff;        /* 卡片 */
  --card-2:#f8fafc;
  --border:#e2e8f0;      /* 边框 */
  --muted:#64748b;       /* 副文本 */
  --text:#1e293b;        /* 正文 */
  --acc:#3b82f6;         /* 主色 */
  --acc-2:#2563eb;       /* 主色深 */
  --ok:#22c55e;          /* 成功 */
  --warn:#f59e0b;        /* 警告 */
  --err:#ef4444;         /* 错误 */
  --shadow:0 4px 6px rgba(0,0,0,.1);
  --radius:14px;
  --radius-sm:10px;
}

/* Reset & base */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Inter,PingFang SC,Microsoft YaHei;
  background:linear-gradient(180deg,#f8fafc 0%, var(--bg) 100%);
  color:var(--text);
}

/* Links */
a{color:var(--acc);text-decoration:none;transition:opacity .15s ease}
a:hover{opacity:.9;text-decoration:underline}

/* Topbar */
.topbar{
  position:sticky;top:0;z-index:50;
  display:flex;justify-content:space-between;align-items:center;
  padding:12px 16px;
  background:rgba(255,255,255,.9);
  border-bottom:1px solid var(--border);
  backdrop-filter: blur(8px);
}
.brand{font-weight:800;letter-spacing:.3px}
.topbar nav{display:flex;gap:10px;align-items:center}
.topbar nav a{
  padding:8px 10px;border-radius:10px;border:1px solid transparent
}
.topbar nav a:hover{background:rgba(0,0,0,.04);border-color:var(--border)}

/* Layout */
.container{max-width:1060px;margin:22px auto;padding:0 14px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:12px 0}
@media (max-width:980px){ .grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (max-width:640px){ .grid{grid-template-columns:1fr} }

/* Cards */
.card{
  background:linear-gradient(180deg,var(--card) 0%, var(--card-2) 100%);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow);
}
h1,h2,h3{margin:0 0 12px}
h1{font-size:1.35rem}
.section-title{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.section-title .badge{
  font-size:.78rem;color:#cbd5e1;background:#0b1220;border:1px solid var(--border);
  padding:3px 8px;border-radius:999px
}

/* Flash / 通知条 */
.flash{margin-bottom:12px}
.f{
  padding:10px 12px;border-radius:var(--radius-sm);margin-bottom:8px;
  border:1px solid var(--border);background:rgba(255,255,255,.02)
}
.f.ok{background:rgba(34,197,94,.10);border-color:#14532d;color:#d1fae5}
.f.error{background:rgba(239,68,68,.10);border-color:#7f1d1d;color:#fee2e2}
.f.warn{background:rgba(245,158,11,.12);border-color:#854d0e;color:#ffedd5}

/* Forms */
form{width:100%}
.login form{display:flex;flex-direction:column;gap:12px;margin-top:12px}

label{display:block;font-size:.92rem;color:var(--muted);margin:6px 2px}
input,button,select,textarea{
  width:100%;
  padding:11px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background:white;
  color:var(--text);
  outline:none;
  transition:border-color .15s ease, box-shadow .15s ease, background .15s ease, opacity .15s ease;
}
input::placeholder,textarea::placeholder{color:var(--muted)}
input:focus,select:focus,textarea:focus{
  border-color:var(--acc);
  box-shadow:0 0 0 3px rgba(96,165,250,.25);
}
textarea{min-height:120px;resize:vertical}

/* Buttons */
button{
  display:inline-flex;justify-content:center;align-items:center;
  gap:8px;width:auto;cursor:pointer;
  background:linear-gradient(180deg,var(--acc) 0%, var(--acc-2) 100%);
  border-color:transparent;color:#071423;font-weight:700;
}
button:hover{opacity:.95;transform:translateY(-0.5px)}
button:active{opacity:.92;transform:translateY(0)}
button[disabled]{opacity:.6;cursor:not-allowed}

/* Button variants */
.btn{padding:10px 14px;border-radius:12px;border:1px solid transparent;cursor:pointer}
.btn.primary{background:linear-gradient(180deg,var(--acc) 0%, var(--acc-2) 100%);color:#071423}
.btn.ghost{background:transparent;border-color:var(--border);color:var(--text)}
.btn.ghost:hover{background:rgba(255,255,255,.04)}
.btn.ok{background:linear-gradient(180deg,#34d399 0%, #10b981 100%);color:#052e16}
.btn.warn{background:linear-gradient(180deg,#fbbf24 0%, #f59e0b 100%);color:#221405}

/* Helpers */
.inline{display:inline}
.help{color:var(--muted);margin-top:10px;font-size:.92rem}

/* Uploader */
.uploader{display:flex;gap:8px;align-items:center;margin-top:8px;flex-wrap:wrap}
.uploader .hint{font-size:.9rem;color:#9aa8c2}

/* Table */
.table{width:100%;border-collapse:collapse;margin-top:12px;border-radius:12px;overflow:hidden}
.table th,.table td{border-bottom:1px solid var(--border);padding:10px 8px;text-align:left}
.table thead th{font-size:.9rem;color:var(--text);background:var(--card-2);font-weight:600}
.table tbody tr:hover{background:rgba(59,130,246,.05)}
.table .actions{display:flex;gap:8px}
.badge{
  display:inline-block;padding:3px 8px;border-radius:999px;
  font-size:.78rem;border:1px solid var(--border);color:var(--text);background:var(--card-2)
}
.badge.ok{border-color:var(--ok);background:rgba(34,197,94,.15);color:var(--ok);font-weight:500}
.badge.err{border-color:var(--err);background:rgba(239,68,68,.15);color:var(--err);font-weight:500}
.badge.warn{border-color:var(--warn);background:rgba(245,158,11,.15);color:var(--warn);font-weight:500}

/* Logs */
pre.log{
  white-space:pre-wrap;background:var(--gray-50);border:1px solid var(--border);
  padding:12px;border-radius:12px;max-height:45vh;overflow:auto;
  font-size:.92rem;line-height:1.55;color:var(--text);
  font-family:ui-monospace,SFMono-Regular,"SF Mono",Consolas,"Liberation Mono",Menlo,monospace;
}

/* Empty State */
.empty{
  border:1px dashed var(--border);border-radius:14px;padding:22px;text-align:center;
  color:#9db0c9;background:rgba(255,255,255,.02)
}

/* Small toolbar row inside card */
.toolbar{
  display:flex;gap:10px;align-items:center;justify-content:space-between;margin-bottom:10px
}
.toolbar .right{display:flex;gap:8px;align-items:center}

/* Tiny utilities */
.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}
.mb-8{margin-bottom:8px}.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}
.p-0{padding:0}.py-8{padding-top:8px;padding-bottom:8px}
.round{border-radius:12px}

/* Mobile tweaks */
@media (max-width:480px){
  .topbar{padding:10px 12px}
  .container{margin:16px auto}
  .card{padding:14px}
}