/* ==========================================================================
   HSE Learning Hub – admin panel & auth screens
   ========================================================================== */
:root {
  --a-primary: #442e66;
  --a-primary-dark: #2f1f47;
  --a-primary-soft: #f1edf7;
  --a-accent: #ffb606;
  --a-bg: #f5f4f8;
  --a-text: #3a3a4a;
  --a-muted: #7c7c8c;
  --a-border: #e7e5ee;
  --a-radius: 12px;
  --a-shadow: 0 2px 14px rgba(47, 31, 71, .06);
  --sidebar-w: 260px;
}

body.admin-body,
body.auth-body { font-family: "Roboto", sans-serif; font-size: 14.5px; color: var(--a-text); background: var(--a-bg); }
.admin-body h1, .admin-body h2, .admin-body h3, .admin-body h4, .admin-body h5,
.auth-body h1, .auth-body h2 { font-family: "Roboto Slab", serif; color: var(--a-primary-dark); }
.admin-body a:not(.btn):not(.sidebar-link):not(.dropdown-item) { color: var(--a-primary); }
.admin-body a:not(.btn):not(.sidebar-link):not(.dropdown-item):hover { color: #6a4a9c; }

/* ---------- Layout ---------- */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: var(--sidebar-w); flex: 0 0 var(--sidebar-w);
  background: linear-gradient(180deg, #34224f 0%, #241636 100%);
  color: #d9d2e6; display: flex; flex-direction: column;
}
@media (min-width: 992px) {
  .admin-sidebar { position: sticky; top: 0; height: 100vh; overflow-y: auto; }
}
@media (max-width: 991.98px) {
  .admin-sidebar { --bs-offcanvas-width: 280px; --bs-offcanvas-bg: #2b1c42; }
}
.sidebar-head { display: flex; align-items: center; justify-content: space-between; padding: 22px 22px 18px; border-bottom: 1px solid rgba(255,255,255,.08); }
.sidebar-head img { width: 150px; max-width: 100%; }
.sidebar-nav { padding: 16px 12px; display: flex; flex-direction: column; gap: 4px; }
.sidebar-link {
  display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-radius: 10px;
  color: #cfc6de !important; font-weight: 500; font-size: 14.5px; text-decoration: none; transition: background .2s, color .2s;
}
.sidebar-link i { font-size: 18px; width: 22px; text-align: center; }
.sidebar-link:hover { background: rgba(255,255,255,.07); color: #fff !important; }
.sidebar-link.active { background: var(--a-accent); color: #22150a !important; font-weight: 700; }
.sidebar-link.is-primary:not(.active) { background: rgba(255,182,6,.12); color: #ffd36a !important; }
.sidebar-sep { height: 1px; background: rgba(255,255,255,.08); margin: 10px 6px; }

.admin-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.admin-topbar {
  position: sticky; top: 0; z-index: 1020; height: 64px; display: flex; align-items: center; gap: 14px;
  padding: 0 24px; background: #fff; border-bottom: 1px solid var(--a-border);
}
.topbar-title { font-family: "Roboto Slab", serif; font-weight: 600; color: var(--a-primary-dark); font-size: 17px; }
.btn-user { display: flex; align-items: center; gap: 10px; border: 0; background: transparent; font-weight: 500; }
.avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--a-primary); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; }
.admin-content { flex: 1; padding: 28px 24px; width: 100%; max-width: 1500px; margin: 0 auto; }
.admin-footer { text-align: center; color: var(--a-muted); font-size: 12.5px; padding: 18px; }
@media (max-width: 575.98px) { .admin-content { padding: 20px 14px; } .admin-topbar { padding: 0 14px; } }

/* ---------- Page header ---------- */
.page-header { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 14px; margin-bottom: 24px; }
.page-title { font-size: 26px; margin: 0; }
.page-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.breadcrumb { font-size: 13px; }

/* ---------- Buttons ---------- */
.btn-brand-admin { background: var(--a-primary); color: #fff; font-weight: 600; padding: 11px 20px; border: 0; border-radius: 10px; }
.btn-brand-admin:hover, .btn-brand-admin:focus { background: var(--a-primary-dark); color: #fff; }
.btn-gold { background: var(--a-accent); color: #22150a; font-weight: 700; border: 0; border-radius: 10px; padding: 9px 18px; }
.btn-gold:hover { background: #e6a300; color: #22150a; }
.btn { border-radius: 9px; }
.btn-sm { border-radius: 8px; }

/* ---------- Cards ---------- */
.card-a { background: #fff; border: 1px solid var(--a-border); border-radius: var(--a-radius); box-shadow: var(--a-shadow); }
.card-a > .card-a-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding: 16px 20px; border-bottom: 1px solid var(--a-border); }
.card-a > .card-a-head h2, .card-a > .card-a-head h3 { font-size: 17px; margin: 0; }
.card-a > .card-a-body { padding: 20px; }

.stat-card { display: flex; align-items: center; gap: 16px; padding: 20px; height: 100%; text-decoration: none; }
.stat-icon { flex: 0 0 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 24px; background: var(--a-primary-soft); color: var(--a-primary); }
.stat-card.tone-green .stat-icon { background: #e6f5e8; color: #2e8b3d; }
.stat-card.tone-amber .stat-icon { background: #fff3d6; color: #c98600; }
.stat-card.tone-red .stat-icon { background: #fde7e5; color: #c62f2f; }
.stat-card.tone-blue .stat-icon { background: #e4effc; color: #1f6fd0; }
.stat-value { font-family: "Roboto Slab", serif; font-size: 30px; font-weight: 700; line-height: 1.1; color: var(--a-primary-dark); }
.stat-label { color: var(--a-muted); font-size: 13.5px; }
a.stat-card { color: inherit; transition: transform .15s, box-shadow .15s; }
a.stat-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(47,31,71,.12); }

/* ---------- Tables ---------- */
.table-a { margin: 0; }
.table-a thead th { background: #faf9fc; color: var(--a-muted); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .6px; border-bottom: 1px solid var(--a-border); white-space: nowrap; padding: 12px 16px; }
.table-a tbody td { padding: 13px 16px; vertical-align: middle; border-color: var(--a-border); }
.table-a tbody tr:hover { background: #fcfbfe; }
.cert-id { font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-weight: 600; color: var(--a-primary); white-space: nowrap; }
.thumb { width: 56px; height: 42px; object-fit: cover; border-radius: 6px; background: #eee; }
.thumb-sq { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; background: #eee; }
.row-actions { display: flex; gap: 6px; justify-content: flex-end; flex-wrap: nowrap; }
.empty-state { text-align: center; padding: 48px 20px; color: var(--a-muted); }
.empty-state i { font-size: 42px; display: block; margin-bottom: 8px; color: #c9c2d8; }

/* mobile: tables scroll inside their card, never the page */
.table-responsive { -webkit-overflow-scrolling: touch; }

/* ---------- Forms ---------- */
.admin-body .form-label { font-weight: 500; color: var(--a-primary-dark); margin-bottom: 5px; }
.admin-body .form-control, .admin-body .form-select { border-color: #d9d5e4; border-radius: 9px; padding: 9px 12px; }
.admin-body .form-control:focus, .admin-body .form-select:focus { border-color: var(--a-primary); box-shadow: 0 0 0 .2rem rgba(68,46,102,.15); }
.form-section-title { font-size: 13px; text-transform: uppercase; letter-spacing: .8px; color: var(--a-muted); font-weight: 700; margin: 6px 0 14px; }
.img-preview { width: 120px; height: 90px; object-fit: cover; border-radius: 8px; border: 1px solid var(--a-border); background: #f3f1f8; }

/* ---------- Detail lists ---------- */
.kv { display: grid; grid-template-columns: 150px 1fr; gap: 10px 16px; margin: 0; }
.kv dt { color: var(--a-muted); font-weight: 500; }
.kv dd { margin: 0; font-weight: 500; word-break: break-word; }
@media (max-width: 575.98px) { .kv { grid-template-columns: 1fr; gap: 0; } .kv dt { margin-top: 10px; font-size: 12.5px; } }

/* ---------- Certificate preview ---------- */
.cert-preview-wrap { background: #e9e6f0; border-radius: var(--a-radius); padding: 14px; overflow: hidden; }
.cert-scaler { transform-origin: top left; width: 793px; height: 1122px; box-shadow: 0 4px 22px rgba(0,0,0,.18); }
.cert-preview-holder { position: relative; width: 100%; }
.qr-preview { width: 100%; max-width: 220px; height: auto; border: 1px solid var(--a-border); border-radius: 10px; padding: 8px; background: #fff; }

/* ---------- Auth ---------- */
.auth-shell { min-height: 100vh; display: flex; }
.auth-aside { flex: 1 1 46%; background: linear-gradient(135deg, #34224f, #1d1230); color: #d9d2e6; align-items: center; justify-content: center; padding: 60px; position: relative; overflow: hidden; }
.auth-aside::after { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; right: -140px; bottom: -140px; background: rgba(255,182,6,.14); }
.auth-aside > div { position: relative; z-index: 1; max-width: 420px; }
.auth-aside-logo { width: 190px; margin-bottom: 40px; }
.auth-aside h2 { color: #fff; font-size: 30px; }
.auth-points { list-style: none; padding: 0; margin: 28px 0 0; }
.auth-points li { margin-bottom: 12px; display: flex; gap: 10px; align-items: center; }
.auth-points i { color: var(--a-accent); font-size: 18px; }
.auth-main { flex: 1 1 54%; display: flex; align-items: center; justify-content: center; padding: 32px 16px; }
.auth-card { width: 100%; max-width: 440px; background: #fff; border-radius: 16px; padding: 38px 34px; box-shadow: 0 14px 50px rgba(47,31,71,.12); border-top: 5px solid var(--a-accent); }
.auth-logo { display: block; margin-bottom: 22px; }
.auth-logo img { width: 160px; max-width: 100%; }
.auth-title { font-size: 26px; margin-bottom: 4px; }
.auth-sub { color: var(--a-muted); margin-bottom: 22px; }
.auth-back { text-align: center; margin: 22px 0 0; font-size: 13px; }
.auth-body .form-control { padding: 11px 12px; }
.auth-body .input-group-text { background: #f7f5fb; color: var(--a-primary); }
.auth-body a { color: var(--a-primary); }
@media (max-width: 575.98px) { .auth-card { padding: 28px 20px; } }

/* ---------- Misc ---------- */
.badge { font-weight: 600; letter-spacing: .2px; }
.text-bg-warning { color: #4a3300 !important; }
.pagination { margin: 0; }
.page-link { color: var(--a-primary); border-radius: 8px !important; margin: 0 2px; border-color: var(--a-border); }
.page-item.active .page-link { background: var(--a-primary); border-color: var(--a-primary); }
.filter-bar .form-label { font-size: 12px; color: var(--a-muted); margin-bottom: 3px; }

/* ---------- Print: certificates only ---------- */
@media print {
  .admin-sidebar, .admin-topbar, .admin-footer, .page-header, .no-print, .alert { display: none !important; }
  .admin-content { padding: 0 !important; max-width: none !important; }
}