/* ============================================================
   admin.css — trang quản trị
   ============================================================ */

.page--admin { max-width: 860px; padding-bottom: 56px; }

.admin-topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin: 8px 0 22px;
}

.admin-back {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--brand-ink);
  text-decoration: none;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  transition: all .16s ease;
}

.admin-back:hover { border-color: var(--brand); transform: translateY(-1px); box-shadow: 0 4px 12px -6px rgba(23,41,35,.3); }

.admin-title { margin: 0; font-size: clamp(20px, 3.5vw, 27px); font-weight: 800; letter-spacing: -.02em; flex: 1; }

/* ---------- Card dùng chung ---------- */

.admin-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  padding: 24px 26px;
}

.admin-card + .admin-card { margin-top: 20px; }

.admin-card__head { margin-bottom: 18px; }
.admin-card__head h2 { margin: 0 0 4px; font-size: 18px; font-weight: 700; letter-spacing: -.01em; }
.admin-card__sub { margin: 0; font-size: 13px; color: var(--muted); }

/* ---------- Đăng nhập ---------- */

.admin-login { max-width: 430px; margin: 8vh auto 0; text-align: center; padding: 36px 30px; }

.login-emoji { font-size: 40px; }

.admin-login h2 { margin: 10px 0 6px; font-size: 20px; font-weight: 700; }

.login-hint { margin: 0 auto 20px; font-size: 13px; color: var(--ink-soft); max-width: 320px; }

.login-form { display: grid; gap: 10px; }

.input {
  font-family: var(--font);
  font-size: 15px;
  padding: 11px 14px;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--r-md);
  background: #fff;
  color: var(--ink);
  transition: border-color .16s ease, box-shadow .16s ease;
  width: 100%;
}

.input:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3.5px rgba(11, 122, 94, .14); }

.login-error { color: var(--danger); font-size: 13px; margin: 12px 0 0; font-weight: 600; }

/* ---------- Nút ---------- */

.btn {
  appearance: none;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  padding: 10px 18px;
  cursor: pointer;
  transition: all .16s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn--primary { background: var(--brand); color: #fff; box-shadow: 0 6px 16px -8px rgba(11, 122, 94, .6); }
.btn--primary:hover { background: var(--brand-deep); transform: translateY(-1px); }
.btn--primary:disabled { opacity: .55; cursor: not-allowed; transform: none; }

.btn--ghost { background: #fff; color: var(--ink-soft); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--brand); color: var(--brand-ink); }

.btn--danger { background: #fff; color: var(--danger); border-color: #E7C4C2; }
.btn--danger:hover { background: var(--danger-bg); }

.btn--sm { font-size: 12.5px; padding: 6px 12px; border-radius: 9px; }

.btn--lg { font-size: 15px; padding: 13px 24px; }

/* ---------- Dropzone ---------- */

.dropzone {
  border: 2px dashed var(--line-strong);
  border-radius: var(--r-md);
  padding: 36px 20px;
  text-align: center;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .18s ease;
  background: linear-gradient(180deg, #FBFDFC, #F6FAF7);
}

.dropzone:hover, .dropzone:focus-visible, .dropzone.is-drag {
  border-color: var(--brand);
  background: var(--brand-softer);
  transform: translateY(-1px);
}

.dropzone p { margin: 10px 0 0; font-size: 14.5px; }
.dropzone__hint { font-size: 12px !important; color: var(--muted) !important; }
.dropzone.is-drag svg { transform: translateY(-4px); }
.dropzone svg { transition: transform .18s ease; color: var(--brand); }

.dropzone.is-busy { pointer-events: none; opacity: .65; }

/* ---------- Preview ---------- */

.preview-title {
  margin: 22px 0 4px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
  margin: 14px 0 4px;
  padding: 0;
}

.preview-stat {
  background: var(--brand-softer);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 11px 14px;
}

.preview-stat dt { font-size: 11.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 3px; }

.preview-stat dd { margin: 0; font-size: 16px; font-weight: 700; color: var(--ink); }

.preview-stat--pe { background: var(--amber-bg); border-color: var(--amber-border); }

.preview-warnings {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: var(--r-sm);
  background: #FFF8E6;
  border: 1px solid #EBCE8E;
  font-size: 12.5px;
  color: #7A6B45;
}

.preview-actions { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }

/* ---------- Danh sách các bản ---------- */

.tt-list { display: grid; gap: 10px; }

.tt-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: #fff;
  transition: box-shadow .16s ease;
  flex-wrap: wrap;
}

.tt-row:hover { box-shadow: 0 4px 14px -8px rgba(23, 41, 35, .25); }

.tt-row.is-active { border-color: var(--brand); background: var(--brand-softer); }

.tt-row__main { flex: 1; min-width: 220px; }

.tt-row__title { font-weight: 700; font-size: 14.5px; margin: 0 0 3px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.tt-row__meta { font-size: 12px; color: var(--muted); margin: 0; }

.tt-row__actions { display: flex; gap: 8px; }

.tag-active {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--brand-ink);
  background: var(--brand-soft);
  border: 1px solid #BEDFCE;
  border-radius: 999px;
  padding: 2px 9px;
}

.tt-empty {
  padding: 26px;
  text-align: center;
  color: var(--muted);
  font-size: 13.5px;
  border: 1.5px dashed var(--line-strong);
  border-radius: var(--r-md);
}

@media (max-width: 640px) {
  .admin-card { padding: 18px 16px; }
  .admin-login { padding: 28px 20px; }
}