/* =========================================================
   หน้าผู้ดูแลระบบ — เมนูแยกหมวด / Dashboard / จัดการคอร์ส ภาพ ข้อมูลเว็บ
   (ใช้ token และ component จาก style.css)
   ========================================================= */
.admin-page .checkout { padding-top: 28px; }
.admin-page .container { max-width: 1320px; }

.admin-layout { display: grid; grid-template-columns: 236px minmax(0, 1fr); gap: 28px; align-items: start; }
.admin-layout[hidden] { display: none; }
.admin-main { min-width: 0; }
.admin-main > section > .checkout-head { margin-bottom: 20px; }

/* ---------- เมนูซ้าย ---------- */
.admin-nav {
  position: sticky; top: calc(var(--header-h) + 16px);
  display: flex; flex-direction: column; gap: 2px;
  padding: 18px 12px; border: 1px solid var(--line-warm); border-radius: var(--radius-lg); background: var(--white);
}
.admin-nav-user { margin: 0 10px 8px; font-size: 13px; color: var(--muted); overflow-wrap: anywhere; }
.admin-nav-group { margin: 14px 10px 4px; font-family: var(--font-head); font-size: 12px; letter-spacing: .08em; color: var(--gold-600); }
.admin-nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 12px;
  font-family: var(--font-head); font-size: 15px; color: var(--ink); text-decoration: none;
}
.admin-nav a:hover { background: var(--ivory-2); }
.admin-nav a[aria-current="page"] { background: var(--emerald-900); color: var(--gold-200); }
.admin-nav .icon { width: 18px; height: 18px; flex: none; }
.nav-count { margin-left: auto; min-width: 22px; padding: 0 7px; border-radius: 999px; background: #C0392B; color: #fff; font-size: 12px; text-align: center; }

/* ---------- ส่วนร่วม ---------- */
.panel-title-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.panel-title-row h2 { margin: 0; }
.panel-title-row .panel-hint { margin: 0; }
.row-tools { display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.icon-btn {
  display: inline-grid; place-items: center; width: 34px; height: 34px; padding: 0;
  border: 1px solid var(--line-warm); border-radius: 10px; background: var(--white); color: var(--ink); cursor: pointer;
}
.icon-btn:hover:not(:disabled) { background: var(--ivory-2); }
.icon-btn:disabled { opacity: .35; cursor: default; }
.icon-btn.danger { color: #A5281B; }
.icon-btn.danger:hover { background: #FDECEA; border-color: #F3C1BA; }
.icon-btn .icon { width: 16px; height: 16px; }
.tag-muted { display: inline-block; padding: 1px 8px; border-radius: 999px; background: var(--gray-100); color: var(--muted); font-size: 12px; font-style: normal; font-family: var(--font-head); }
.check-inline { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; cursor: pointer; }
.check-inline input { width: 18px; height: 18px; accent-color: var(--emerald-900); }
.field-hint { color: var(--muted); font-size: 13px; }
.field-check { align-self: end; padding-bottom: 10px; }
.step-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.upload-progress { position: relative; height: 26px; margin: 10px 0; border-radius: 999px; background: var(--ivory-2); overflow: hidden; }
.upload-progress[hidden] { display: none; }
.upload-progress span { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--grad-gold); transition: width .2s; }
.upload-progress::after { content: attr(data-label); position: relative; display: block; text-align: center; font-size: 13px; line-height: 26px; color: var(--emerald-900); }

/* ---------- Dashboard ---------- */
.admin-stats .stat-sub { margin: 6px 0 0; font-size: 13px; color: var(--muted); }
.admin-stats .stat-alert { border-color: #F0D58C; background: #FFFBEF; }
.admin-stats .stat-link { display: inline-block; margin-top: 6px; font-size: 14px; color: var(--gold-600); }
.dash-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.dash-panel { padding: 24px; }
.dash-panel h2 { font-size: 19px; margin-bottom: 14px; }
.dash-wide { grid-column: 1 / -1; }

.bar-chart { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 8px; align-items: end; height: 220px; padding-top: 8px; }
.bar-col { display: grid; grid-template-rows: auto 1fr auto; height: 100%; text-align: center; }
.bar-col .bar { align-self: end; width: 100%; max-width: 44px; justify-self: center; border-radius: 8px 8px 3px 3px; background: var(--grad-gold); min-height: 0; }
.bar-value { font-size: 11px; color: var(--muted); min-height: 16px; }
.bar-label { margin-top: 6px; font-size: 12px; color: var(--muted); }

.dash-list { list-style: none; margin: 0; padding: 0; }
.dash-list li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 12px; padding: 10px 0; border-bottom: 1px solid var(--line-warm); }
.dash-list li:last-child { border-bottom: 0; }
.dash-list small { grid-column: 1 / -1; color: var(--muted); font-size: 13px; }
.dash-name { font-family: var(--font-head); font-size: 15px; }
.dash-num { font-family: var(--font-head); font-weight: 600; color: var(--emerald-900); white-space: nowrap; }
.dash-meter { grid-column: 1 / -1; height: 6px; border-radius: 99px; background: var(--ivory-2); overflow: hidden; }
.dash-meter span { display: block; height: 100%; background: var(--grad-gold); }
.dash-empty { color: var(--muted); }

/* ---------- คอร์ส ---------- */
.course-admin { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 20px; align-items: start; }
.course-admin-list { padding: 20px 16px; position: sticky; top: calc(var(--header-h) + 16px); max-height: calc(100vh - var(--header-h) - 40px); overflow: auto; }
.course-admin-list h2 { font-size: 18px; }
.course-admin-list .panel-hint { margin-bottom: 12px; font-size: 13px; }
.course-admin-list ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.course-admin-list li { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 6px; padding: 6px; border-radius: 12px; border: 1px solid transparent; }
.course-admin-list li.is-active { border-color: var(--gold-400); background: #FFFBEF; }
.course-admin-list li a { display: grid; gap: 2px; padding: 4px 6px; color: inherit; text-decoration: none; }
.course-admin-list li strong { font-family: var(--font-head); font-weight: 500; font-size: 15px; line-height: 1.4; }
.course-admin-list li small { color: var(--muted); font-size: 12px; }
.course-admin-list .row-tools { flex-direction: column; gap: 4px; }
.course-admin-list .icon-btn { width: 28px; height: 26px; }
.course-admin-editor { display: grid; gap: 20px; min-width: 0; }
.course-admin-editor .step-panel { margin: 0; }

.cover-row { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 16px; align-items: start; }
.cover-preview { aspect-ratio: 16 / 9; border-radius: 12px; background: var(--ivory-2); overflow: hidden; }
.cover-preview img { width: 100%; height: 100%; object-fit: cover; }

.lesson-admin { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.lesson-admin > li { border: 1px solid var(--line-warm); border-radius: 14px; background: var(--white); }
.lesson-admin > li.is-open { border-color: var(--gold-400); box-shadow: 0 10px 30px -24px rgba(6, 19, 12, .5); }
.lesson-admin-head { display: flex; align-items: center; gap: 8px; padding: 6px 10px 6px 6px; }
.lesson-toggle {
  flex: 1; min-width: 0; display: grid; grid-template-columns: 30px 20px minmax(0, 1fr); grid-template-rows: auto auto; column-gap: 10px; align-items: center;
  padding: 8px; border: 0; background: none; text-align: left; font: inherit; color: inherit; cursor: pointer; border-radius: 10px;
}
.lesson-toggle:hover { background: var(--ivory); }
.lesson-toggle .lesson-no { grid-row: 1 / 3; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--ivory-2); font-family: var(--font-head); font-size: 13px; }
.lesson-toggle .icon { grid-row: 1 / 3; width: 18px; height: 18px; color: var(--gold-600); }
.lesson-name { font-family: var(--font-head); font-size: 15px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lesson-toggle small { grid-column: 3; color: var(--muted); font-size: 12px; }
.lesson-admin-body { padding: 8px 18px 18px; border-top: 1px solid var(--line-warm); }
.lesson-admin-body .field-grid { margin-top: 12px; }
.video-status { margin: 0; font-size: 14px; color: var(--muted); }
.video-status a { color: var(--gold-600); }
.file-admin { list-style: none; margin: 0 0 8px; padding: 0; display: grid; gap: 6px; }
.file-admin li { display: grid; grid-template-columns: 18px minmax(0, 1fr) auto auto; gap: 10px; align-items: center; padding: 6px 8px; border-radius: 10px; background: var(--ivory); }
.file-admin .icon { width: 18px; height: 18px; color: var(--gold-600); }
.file-admin span { overflow-wrap: anywhere; font-size: 14px; }
.file-admin small { color: var(--muted); font-size: 12px; }

/* ---------- ภาพกิจกรรม ---------- */
.gallery-upload { margin-bottom: 20px; }
.gallery-admin { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.gallery-card { display: grid; grid-template-rows: auto 1fr; border: 1px solid var(--line-warm); border-radius: 16px; overflow: hidden; background: var(--white); }
.gallery-card.is-hidden-item img { opacity: .45; }
.gallery-thumb { position: relative; aspect-ratio: 4 / 3; background: var(--ivory-2); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumb .tag-muted { position: absolute; top: 10px; left: 10px; }
.gallery-fields { display: grid; gap: 10px; padding: 12px; }
.gallery-fields textarea, .gallery-fields select {
  width: 100%; padding: 8px 10px; border: 1px solid #D5DDD7; border-radius: 10px; font: inherit; font-size: 14px; background: var(--white);
}
.gallery-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.gallery-row select { width: auto; flex: 1; }

/* ---------- จอเล็ก ---------- */
@media (max-width: 1100px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-nav { position: static; flex-direction: row; flex-wrap: wrap; padding: 10px; gap: 6px; }
  .admin-nav-user, .admin-nav-group { display: none; }
  .admin-nav a { padding: 8px 12px; font-size: 14px; background: var(--ivory); }
  .course-admin { grid-template-columns: 1fr; }
  .course-admin-list { position: static; max-height: none; }
}
@media (max-width: 720px) {
  .dash-grid { grid-template-columns: 1fr; }
  .bar-chart { gap: 4px; height: 180px; }
  .bar-value { display: none; }
  .cover-row { grid-template-columns: 1fr; }
  .admin-nav { overflow-x: auto; flex-wrap: nowrap; }
  .admin-nav a { white-space: nowrap; }
}
.radio-row { display: flex; gap: 28px; flex-wrap: wrap; }

/* ---------- สมาชิก ---------- */
.member-filters { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)) auto; gap: 14px; align-items: end; margin-bottom: 12px; }
.member-count { margin: 0 0 10px; font-size: 14px; }
.sort-btn { display: inline-flex; align-items: center; gap: 6px; padding: 0; border: 0; background: none; font: inherit; color: inherit; cursor: pointer; white-space: nowrap; }
.sort-btn:hover, .sort-btn.is-active { color: var(--gold-600); }
.sort-mark { font-size: 11px; opacity: .7; }
.cell-sub { display: block; color: var(--muted); font-size: 12px; }
.cell-sub.warn { color: #8A6212; }
.chip-list { display: flex; flex-wrap: wrap; gap: 4px; }
.chip { display: inline-block; padding: 2px 9px; border-radius: 999px; background: #EEF8EF; color: var(--green-700); font-size: 12px; line-height: 1.5; }
.chip-admin { background: #FFF6E0; color: #8A6212; }
.member-table tr.is-open > td { background: #FFFBEF; }
.member-detail > td { background: var(--ivory); padding: 16px 18px; max-width: none; }
.member-panel { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.member-panel h3 { font-size: 16px; margin: 0 0 10px; }
.member-courses { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.member-courses li { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 12px; border-radius: 12px; background: var(--white); border: 1px solid var(--line-warm); }
.member-courses small { display: block; color: var(--muted); font-size: 12px; }
.member-add { display: grid; gap: 8px; margin-bottom: 12px; }
.more-cell { text-align: center; }
@media (max-width: 1100px) { .member-filters { grid-template-columns: repeat(2, minmax(0, 1fr)); } .member-filters .field:first-child { grid-column: 1 / -1; } }
@media (max-width: 720px) {
  .member-filters, .member-panel { grid-template-columns: 1fr; }
  .member-detail > td { display: block; }
  .member-detail > td::before { display: none; }
}

/* วิดีโอ Vimeo ในหน้าแก้ไขบทเรียน */
.vimeo-preview { position: relative; aspect-ratio: 16 / 9; max-width: 520px; margin-top: 10px; border-radius: 12px; overflow: hidden; background: #000; }
.vimeo-preview iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-fallback { margin-top: 14px; padding: 10px 14px; border: 1px dashed var(--line-warm); border-radius: 12px; }
.video-fallback summary { cursor: pointer; font-size: 14px; color: var(--muted); }
.video-fallback[open] summary { margin-bottom: 8px; }