/* ==========================================================================
   SuperPrep LMS — admin / dashboard shell
   Loaded on top of app.css
   ========================================================================== */

.admin-shell { display: grid; min-height: 100vh; }
@media (min-width: 992px) { .admin-shell { grid-template-columns: 264px 1fr; } }

.admin-side { background: var(--c-secondary); color: #CBD5E1; padding: 0 0 24px; }
.admin-side .side-brand { display: flex; align-items: center; gap: 10px; padding: 18px 18px 16px; color: #fff; font-weight: 800; border-bottom: 1px solid rgba(255,255,255,.1); }
.admin-side .side-brand img { height: 30px; }
.admin-nav { padding: 12px 10px; }
.admin-nav .nav-group { font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; color: #64748B; padding: 15px 12px 6px; font-weight: 700; }
.admin-nav a { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 9px; color: #CBD5E1; font-size: .875rem; }
.admin-nav a:hover { background: rgba(255,255,255,.07); color: #fff; }
.admin-nav a.is-active { background: var(--c-primary); color: #fff; font-weight: 600; }
.admin-nav .ico { width: 20px; text-align: center; flex: none; }
.admin-nav .tail { margin-left: auto; font-size: .7rem; background: rgba(255,255,255,.14); padding: 1px 7px; border-radius: 99px; }

.admin-main { background: var(--c-surface); min-width: 0; display: flex; flex-direction: column; }
.admin-top { background: var(--c-bg); border-bottom: 1px solid var(--c-border); padding: 12px 22px; display: flex; align-items: center; gap: 14px; position: sticky; top: 0; z-index: 55; flex-wrap: wrap; }
.admin-top h1 { font-size: 1.15rem; margin: 0; }
.admin-body { padding: 24px 22px 60px; flex: 1; }

.admin-side { display: none; }
@media (min-width: 992px) { .admin-side { display: block; } }
.admin-side.is-open { display: block; position: fixed; inset: 0 auto 0 0; width: 274px; z-index: 80; overflow-y: auto; }
@media (min-width: 992px) { .admin-side.is-open { position: static; width: auto; } }

.admin-stats { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); margin-bottom: 22px; }
.admin-stat { background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 18px; display: flex; gap: 14px; align-items: flex-start; }
.admin-stat .ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-size: 1.15rem; flex: none; background: color-mix(in srgb, var(--c-primary) 13%, transparent); color: var(--c-primary); }
.admin-stat .value { font-size: 1.45rem; font-weight: 800; line-height: 1.2; }
.admin-stat .label { font-size: .78rem; color: var(--c-muted); }

.panel { background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius); margin-bottom: 20px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 15px 18px; border-bottom: 1px solid var(--c-border); flex-wrap: wrap; }
.panel-head h3 { margin: 0; font-size: 1rem; }
.panel-body { padding: 18px; }
.panel-body.flush { padding: 0; }
.panel-foot { padding: 14px 18px; border-top: 1px solid var(--c-border); background: var(--c-surface); display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; }

.form-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.form-grid .span-2 { grid-column: 1 / -1; }

.chart { display: flex; align-items: flex-end; gap: 4px; height: 190px; padding: 10px 0; }
.chart .bar { flex: 1; background: linear-gradient(180deg, var(--c-primary), color-mix(in srgb, var(--c-primary) 45%, transparent)); border-radius: 4px 4px 0 0; min-height: 3px; position: relative; }
.chart .bar:hover { filter: brightness(1.12); }
.chart .bar span { display: none; position: absolute; bottom: calc(100% + 6px); left: 50%; transform: translateX(-50%); background: var(--c-secondary); color: #fff; font-size: .7rem; padding: 3px 7px; border-radius: 6px; white-space: nowrap; z-index: 5; }
.chart .bar:hover span { display: block; }
.chart-axis { display: flex; justify-content: space-between; font-size: .72rem; color: var(--c-muted); margin-top: 6px; }

.swatch-row { display: flex; gap: 14px; flex-wrap: wrap; }
.swatch { flex: 1 1 150px; text-align: center; border: 1px solid var(--c-border); border-radius: var(--radius-sm); padding: 12px; background: var(--c-card); }
.swatch .chip { height: 44px; border-radius: 8px; border: 1px solid var(--c-border); margin-bottom: 8px; }
.swatch code { font-size: .72rem; }

.preset-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); }
.preset { border: 1px solid var(--c-border); border-radius: var(--radius-sm); padding: 10px; background: var(--c-card); cursor: pointer; text-align: center; }
.preset.is-active { border-color: var(--c-primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--c-primary) 25%, transparent); }
.preset .bars { display: flex; gap: 4px; margin-bottom: 8px; }
.preset .bars i { flex: 1; height: 26px; border-radius: 6px; }

.toggle-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 13px 0; border-bottom: 1px solid var(--c-border); }
.toggle-row:last-child { border-bottom: 0; }
.toggle-row .txt strong { display: block; font-size: .93rem; }
.toggle-row .txt span { font-size: .8rem; color: var(--c-muted); }
.switch { position: relative; width: 46px; height: 26px; flex: none; }
.switch input { opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; position: absolute; z-index: 2; }
.switch i { position: absolute; inset: 0; background: var(--c-border); border-radius: 99px; transition: .2s; }
.switch i::after { content: ''; position: absolute; width: 20px; height: 20px; border-radius: 50%; background: #fff; top: 3px; left: 3px; transition: .2s; box-shadow: 0 1px 3px rgba(0,0,0,.25); }
.switch input:checked + i { background: var(--c-primary); }
.switch input:checked + i::after { transform: translateX(20px); }

.curriculum-module { border: 1px solid var(--c-border); border-radius: var(--radius); margin-bottom: 14px; background: var(--c-card); }
.curriculum-module > header { display: flex; align-items: center; gap: 12px; padding: 13px 16px; border-bottom: 1px solid var(--c-border); background: var(--c-surface); border-radius: var(--radius) var(--radius) 0 0; flex-wrap: wrap; }
.curriculum-module > header h4 { margin: 0; font-size: .95rem; flex: 1; min-width: 140px; }
.curriculum-module .lesson-line { display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-bottom: 1px dashed var(--c-border); font-size: .88rem; flex-wrap: wrap; }
.curriculum-module .lesson-line:last-child { border-bottom: 0; }
.curriculum-module .lesson-line .grow { flex: 1; min-width: 130px; }

.inline-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: flex-end; }
.inline-form .form-group { margin-bottom: 0; flex: 1 1 160px; }

.thumb-xs { width: 46px; height: 46px; border-radius: 9px; object-fit: cover; border: 1px solid var(--c-border); background: var(--c-surface); }

.row-actions { display: flex; gap: 6px; justify-content: flex-end; }
.row-actions form { display: inline; }

.review-item { border-bottom: 1px solid var(--c-border); padding: 14px 0; }
.review-item:last-child { border-bottom: 0; }

.import-box textarea { font-family: ui-monospace, Menlo, monospace; font-size: .8rem; min-height: 150px; }

.sticky-save { position: sticky; bottom: 0; background: var(--c-bg); border-top: 1px solid var(--c-border); padding: 14px 0; display: flex; gap: 10px; justify-content: flex-end; z-index: 20; }

.translation-row { display: grid; gap: 10px; grid-template-columns: 1fr; padding: 12px 0; border-bottom: 1px dashed var(--c-border); }
@media (min-width: 760px) { .translation-row { grid-template-columns: 260px 1fr 1fr; align-items: start; } }
.translation-row code { font-size: .74rem; word-break: break-all; }
.translation-row .src { font-size: .84rem; color: var(--c-muted); }

.health-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.health-ok { background: var(--c-success); }
.health-off { background: var(--c-border); }

@media (max-width: 640px) {
  .admin-body { padding: 16px 14px 50px; }
  .admin-top { padding: 10px 14px; }
}