/* ===== AK工作室 · 后台 ===== */
.app-min { min-height: 100vh; display: flex; flex-direction: column; position: relative; z-index: 1; }

/* ---------- 登录 ---------- */
.login-wrap {
  min-height: 100vh; display: grid; place-items: center;
  padding: 30px 18px; position: relative; z-index: 1;
}
.login-card {
  width: 100%; max-width: 400px;
  padding: 30px 28px 26px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(23, 33, 54, .92), rgba(11, 17, 32, .95));
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.login-brand { text-align: center; margin-bottom: 22px; }
.login-brand .logo-wrap { width: 68px; height: 68px; margin: 0 auto 8px; }
.login-brand h2 { font-size: 24px; font-weight: 800; letter-spacing: 3px; }
.login-brand small { display: block; color: var(--muted-2); font-size: 12px; letter-spacing: 2px; margin-top: 2px; }

.tabs {
  display: flex; gap: 4px; padding: 4px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--border);
  border-radius: 12px; margin-bottom: 20px;
}
.tabs button {
  flex: 1; padding: 8px; border: 0; border-radius: 9px;
  background: transparent; color: var(--muted);
  font-size: 13.5px; font-weight: 600; cursor: pointer; transition: .16s;
}
.tabs button.on { background: rgba(56, 189, 248, .16); color: #7dd3fc; box-shadow: inset 0 0 0 1px rgba(56, 189, 248, .35); }

.auth-extra {
  display: flex; justify-content: space-between; gap: 10px;
  margin: 10px 0 18px; font-size: 12.5px; color: var(--muted);
}
.auth-extra span { cursor: pointer; transition: .15s; }
.auth-extra span:hover { color: var(--cyan); }

.inline-code { display: flex; gap: 8px; }
.inline-code .btn { flex: none; }

/* ---------- 后台主体 ---------- */
.top-nav {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 12px;
  padding: 12px 22px;
  border-bottom: 1px solid var(--border);
  background: rgba(7, 11, 20, .88);
  backdrop-filter: blur(14px);
}
.top-nav .logo-wrap { width: 38px; height: 38px; margin: 0; }
.top-nav .logo-wrap::before { display: none; }
.nav-title { font-size: 16px; font-weight: 800; letter-spacing: 2px; }
.nav-title small { display: block; font-size: 11px; letter-spacing: 1px; color: var(--muted-2); font-weight: 500; }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.nav-user { font-size: 12.5px; color: var(--muted); }

.layout {
  display: grid; grid-template-columns: 320px 1fr; gap: 18px;
  padding: 18px 22px 40px;
  align-items: start;
}
@media (max-width: 980px) { .layout { grid-template-columns: 1fr; } }

.panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .02));
  overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 16px; border-bottom: 1px solid var(--border);
  font-size: 13.5px; font-weight: 700; letter-spacing: 1px; color: #a9bad6;
}
.panel-head .btn { margin-left: auto; }
.panel-body { padding: 16px; }

/* 左侧列表 */
.item-list { max-height: calc(100vh - 190px); overflow-y: auto; padding: 8px; }
.list-item {
  display: flex; gap: 10px; align-items: center;
  padding: 9px 10px; border-radius: 11px; cursor: pointer;
  border: 1px solid transparent; transition: .15s;
}
.list-item:hover { background: rgba(255, 255, 255, .05); }
.list-item.on { background: rgba(56, 189, 248, .12); border-color: rgba(56, 189, 248, .38); }
.list-item img {
  width: 46px; height: 34px; object-fit: cover;
  border-radius: 7px; flex: none; background: #0d1526;
}
.list-item .ph { width: 46px; height: 34px; border-radius: 7px; display: grid; place-items: center; background: #0d1526; color: var(--muted-2); font-size: 14px; flex: none; }
.list-info { min-width: 0; flex: 1; }
.list-name { font-size: 13.5px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.list-sub { font-size: 11.5px; color: var(--muted-2); }

/* 上传区 */
.uploader {
  border: 1.5px dashed var(--border-strong);
  border-radius: 12px; padding: 18px; text-align: center;
  color: var(--muted); font-size: 13px; cursor: pointer;
  transition: .18s; background: rgba(255, 255, 255, .02);
}
.uploader:hover { border-color: rgba(56, 189, 248, .6); background: rgba(56, 189, 248, .06); color: #7dd3fc; }
.uploader.drag { border-color: var(--cyan); background: rgba(56, 189, 248, .1); }

.preview-grid { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.pv {
  position: relative; width: 108px;
  border-radius: 10px; overflow: hidden;
  border: 1px solid var(--border);
}
.pv img { width: 100%; height: 74px; object-fit: cover; cursor: zoom-in; }
.pv .pv-del {
  position: absolute; top: 4px; right: 4px;
  width: 20px; height: 20px; border-radius: 6px; border: 0;
  background: rgba(251, 113, 133, .9); color: #fff;
  font-size: 14px; line-height: 1; cursor: pointer;
}
.pv .pv-mv {
  position: absolute; top: 4px; left: 4px;
  display: flex; gap: 3px;
}
.pv .pv-mv button {
  width: 20px; height: 20px; border-radius: 6px; border: 0;
  background: rgba(6, 12, 24, .78); color: #fff; font-size: 12px; cursor: pointer;
}
.pv-cover-badge {
  position: absolute; bottom: 0; left: 0; right: 0;
  font-size: 10.5px; text-align: center; padding: 2px;
  background: rgba(56, 189, 248, .85); color: #06121f; font-weight: 700;
}

.divider-or {
  display: flex; align-items: center; gap: 10px;
  margin: 12px 0; font-size: 12px; color: var(--muted-2);
}
.divider-or::before, .divider-or::after { content: ""; flex: 1; height: 1px; background: var(--border); }

.form-foot {
  display: flex; gap: 10px; flex-wrap: wrap;
  padding-top: 16px; margin-top: 4px;
  border-top: 1px solid var(--border);
}
.form-foot .grow { flex: 1; }

.upload-status { font-size: 12.5px; color: var(--muted); margin-top: 8px; }
.upload-status.error { color: var(--rose); }

/* ---- 视频编码检测结果 ---- */
.codec-box { margin-top: 10px; }
.codec-row {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 12.8px;
  line-height: 1.8;
  background: rgba(255, 255, 255, .04);
}
.codec-row.codec-ok { border-color: rgba(52, 211, 153, .45); background: rgba(52, 211, 153, .08); }
.codec-row.codec-warn { border-color: rgba(251, 191, 36, .5); background: rgba(251, 191, 36, .09); }
.codec-row.codec-err { border-color: rgba(248, 113, 113, .55); background: rgba(248, 113, 113, .10); }
.codec-meta { color: var(--muted); }
.codec-meta b { color: var(--text); font-weight: 600; }
.codec-msg { margin-top: 4px; color: var(--text); }
.codec-row.codec-err .codec-msg { color: #fca5a5; }
.codec-row.codec-warn .codec-msg { color: #fcd34d; }
.codec-fix {
  margin-top: 8px;
  padding: 10px 12px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--muted);
  word-break: break-all;
}
.codec-fix b { color: var(--text); }
.codec-fix code {
  display: inline-block;
  margin: 2px 0;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(0, 0, 0, .35);
  color: #7dd3fc;
  font-family: ui-monospace, Consolas, Menlo, monospace;
  font-size: 12px;
}

@media (max-width: 640px) {
  .layout { padding: 14px; }
  .top-nav { padding: 10px 14px; }
  .nav-user { display: none; }
}