/* ============================================================
   CMS — style riêng cho admin.html
============================================================ */
:root {
  --bg: #f6f5f2; --panel: #ffffff; --ink: #1c1c1e; --line: #e4e1d8;
  --gold: #a9762f; --dim: #6c6a63; --danger: #c94a3d; --radius: 10px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: "Segoe UI", Inter, sans-serif; font-size: 14px;
}
.admin-shell { display: grid; grid-template-columns: 1fr 420px; min-height: 100vh; }
@media (max-width: 1080px) { .admin-shell { grid-template-columns: 1fr; } }

.admin-main { padding: 24px clamp(16px, 3vw, 40px) 80px; }
.admin-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
.admin-header h1 { font-size: 1.3rem; margin: 0; }
.admin-header p { margin: 4px 0 0; color: var(--dim); font-size: .85rem; }
.admin-toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.btn {
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
  padding: 9px 16px; border-radius: 999px; cursor: pointer; font-size: .84rem; font-weight: 600;
}
.btn:hover { border-color: var(--gold); }
.btn--primary { background: var(--gold); border-color: var(--gold); color: #fff; }
.btn--primary:hover { filter: brightness(1.06); }
.btn--file { position: relative; overflow: hidden; }
.btn--file input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.status { font-size: .8rem; color: var(--dim); padding: 6px 0; }
.status--dirty { color: var(--danger); font-weight: 600; }

.add-section-bar { display: flex; gap: 8px; align-items: center; margin-bottom: 18px; }
.add-section-bar select { padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line); background: #fff; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; }
.card__bar { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; background: #faf9f6; border-bottom: 1px solid var(--line); flex-wrap: wrap; gap: 8px; }
.card__bar-left, .card__bar-right { display: flex; align-items: center; gap: 8px; }
.tag { background: #efe6d3; color: #7a5a20; font-size: .72rem; padding: 3px 9px; border-radius: 999px; font-weight: 700; letter-spacing: .02em; }
.id-badge { font-size: .72rem; color: var(--dim); }
.icon-btn { width: 26px; height: 26px; border-radius: 6px; border: 1px solid var(--line); background: #fff; cursor: pointer; }
.icon-btn.danger { color: var(--danger); border-color: #f0d3ce; }
.icon-btn:hover { border-color: var(--gold); }
.switch { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: var(--dim); }

.card__body { padding: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; } }
.field-row label { display: flex; flex-direction: column; gap: 5px; font-size: .78rem; color: var(--dim); font-weight: 600; }
.field-row input, .field-row textarea {
  border: 1px solid var(--line); border-radius: 7px; padding: 8px 10px; font-size: .85rem; font-family: inherit; color: var(--ink);
}

.opt-editor { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.opt-row { display: grid; grid-template-columns: 40px 1fr 1fr 30px; gap: 8px; align-items: center; }
.opt-row--scene, .opt-row--pack { grid-template-columns: 1fr 1fr 1fr 30px; }
.opt-row--slide { grid-template-columns: 1fr 1fr 70px 30px; }
.opt-row input[type="text"], .opt-row input[type="number"] {
  border: 1px solid var(--line); border-radius: 7px; padding: 7px 9px; font-size: .82rem;
}
.opt-row input[type="color"] { width: 40px; height: 32px; border: 1px solid var(--line); border-radius: 7px; padding: 2px; }
.btn-small {
  border: 1px dashed var(--line); background: #fff; border-radius: 8px; padding: 7px 12px; font-size: .78rem; cursor: pointer; color: var(--gold); font-weight: 600;
}
.btn-small:hover { border-color: var(--gold); background: #fbf6ec; }

.admin-preview { border-left: 1px solid var(--line); background: #111; display: flex; flex-direction: column; }
.admin-preview__bar { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; background: #1b1b1b; color: #ddd; font-size: .78rem; }
.admin-preview__bar button { background: transparent; border: 1px solid #444; color: #ddd; border-radius: 6px; padding: 5px 10px; cursor: pointer; font-size: .76rem; }
.admin-preview iframe { border: 0; width: 100%; flex: 1; background: #000; }

.hint {
  background: #fbf6ec; border: 1px solid #e9dcb8; color: #6b5426; border-radius: 8px;
  padding: 10px 14px; font-size: .8rem; margin-bottom: 18px; line-height: 1.5;
}