/* ==========================================================================
   DevOpsSchool — Slide Library Directory
   Premium, enterprise card directory. Dependency-free; scoped under .sdir.
   Mirrors the trainer-directory template, adapted for slide decks.
   ========================================================================== */

.sdir {
    --sdir-bg: #f5f7fb;
    --sdir-card: #ffffff;
    --sdir-border: #e6e9f2;
    --sdir-border-strong: #d6dcec;
    --sdir-text: #111827;
    --sdir-muted: #6b7280;
    --sdir-faint: #9aa3b2;
    --sdir-primary: #6d28d9;
    --sdir-primary-dark: #5b21b6;
    --sdir-primary-soft: #f3eefe;
    --sdir-success: #16a34a;
    --sdir-amber: #f59e0b;
    --sdir-danger: #dc2626;
    --sdir-radius: 12px;
    --sdir-radius-sm: 10px;
    --sdir-shadow: 0 1px 2px rgba(16,24,40,.05);
    --sdir-shadow-hover: 0 10px 24px rgba(16,24,40,.10), 0 2px 6px rgba(16,24,40,.06);

    background: var(--sdir-bg);
    color: var(--sdir-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    padding: 0 0 56px;
    min-height: 72vh;
}
.sdir *, .sdir *::before, .sdir *::after { box-sizing: border-box; }
.sdir a { text-decoration: none; }

.sdir-wrap { max-width: 1280px; margin: 0 auto; padding: 0 18px; }

/* ---- Compact hero header (title + description + integrated search) ---- */
.sdir-header {
    background: linear-gradient(120deg, #1e1b4b 0%, #4c1d95 55%, #6d28d9 100%);
    color: #fff; padding: 30px 0 28px;
    font-family: 'Poppins', ui-sans-serif, system-ui, 'Segoe UI', sans-serif;
}
.sdir-header .sdir-search input { font-family: inherit; }
.sdir-header h1 { font-size: 1.7rem; font-weight: 800; margin: 0 0 6px; letter-spacing: -.02em; }
.sdir-header p { color: #ddd6fe; font-size: .94rem; max-width: 680px; margin: 0; line-height: 1.5; }
.sdir-header .sdir-search { margin-top: 18px; max-width: 760px; }

/* ---- Hero row: search bar + primary CTA side by side ---- */
.sdir-hero-row { display: flex; align-items: stretch; gap: 14px; margin-top: 18px; flex-wrap: wrap; }
.sdir-hero-row .sdir-search { margin-top: 0; flex: 1 1 420px; max-width: 760px; }
.sdir-cta-btn {
    flex: 0 0 auto; display: inline-flex; align-items: center; gap: 10px;
    background: linear-gradient(180deg, #ffffff 0%, #f6f3ff 100%);
    border: 1px solid rgba(255, 255, 255, .85); border-radius: var(--sdir-radius);
    padding: 0 22px; text-decoration: none; white-space: nowrap;
    box-shadow: 0 6px 16px rgba(20, 8, 40, .18), 0 1px 2px rgba(20, 8, 40, .12);
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.sdir-cta-ico {
    display: inline-flex; align-items: center; justify-content: center;
    width: 26px; height: 26px; border-radius: 50%;
    background: var(--sdir-primary-soft); color: var(--sdir-primary);
    transition: background .18s ease, color .18s ease, transform .18s ease;
}
.sdir-cta-ico i { font-size: .82rem; }
.sdir-cta-txt {
    font-family: 'Poppins', ui-sans-serif, system-ui, 'Segoe UI', sans-serif;
    color: var(--sdir-primary-dark); font-weight: 600; font-size: .95rem;
    letter-spacing: .01em; line-height: 1;
}
.sdir-cta-btn:hover {
    transform: translateY(-2px);
    background: linear-gradient(180deg, #ffffff 0%, #efe9ff 100%);
    box-shadow: 0 12px 26px rgba(20, 8, 40, .26), 0 2px 6px rgba(20, 8, 40, .16);
}
.sdir-cta-btn:hover .sdir-cta-ico {
    background: linear-gradient(135deg, var(--sdir-primary) 0%, var(--sdir-primary-dark) 100%);
    color: #fff; transform: scale(1.06);
}
.sdir-cta-btn:active { transform: translateY(0); }
@media (max-width: 560px) {
    .sdir-cta-btn { flex: 1 1 100%; justify-content: center; padding: 13px 22px; }
}

/* ---- Search bar ---- */
.sdir-search {
    background: var(--sdir-card); border: 1px solid var(--sdir-border);
    border-radius: var(--sdir-radius); box-shadow: var(--sdir-shadow);
    padding: 6px 8px; display: flex; align-items: center; gap: 6px;
}
.sdir-search .ico { color: var(--sdir-faint); padding: 0 4px 0 10px; font-size: 1rem; }
.sdir-search input {
    flex: 1; border: 0; outline: 0; font-size: .98rem; padding: 10px 4px;
    background: transparent; color: var(--sdir-text); min-width: 0;
}
.sdir-search input::placeholder { color: var(--sdir-faint); }
.sdir-search .clear-search {
    border: 0; background: transparent; color: var(--sdir-muted); cursor: pointer;
    font-size: 1.2rem; line-height: 1; padding: 6px 10px; display: none;
}
.sdir-search.has-value .clear-search { display: inline-block; }

/* ---- Category chips ---- */
.sdir-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 2px; }
.sdir-chips .chips-label { font-size: .8rem; color: var(--sdir-muted); align-self: center; margin-right: 2px; font-weight: 600; }
.sdir-chip {
    border: 1px solid var(--sdir-border); background: #fff; color: #374151;
    border-radius: 999px; padding: 6px 14px; font-size: .83rem; font-weight: 600;
    cursor: pointer; transition: all .12s ease; white-space: nowrap;
}
.sdir-chip:hover { border-color: var(--sdir-primary); color: var(--sdir-primary); }
.sdir-chip.active { background: var(--sdir-primary); border-color: var(--sdir-primary); color: #fff; }

/* ---- Toolbar (sort + per-page + refresh + mobile filter toggle) ---- */
.sdir-toolbar {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    flex-wrap: wrap; margin: 16px 0 14px;
}
.sdir-toolbar-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.sdir-select {
    border: 1px solid var(--sdir-border); background: #fff
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 11px center;
    border-radius: var(--sdir-radius-sm); padding: 9px 32px 9px 12px; font-size: .86rem;
    color: var(--sdir-text); cursor: pointer; outline: 0; -webkit-appearance: none; appearance: none;
}
.sdir-select:focus { border-color: var(--sdir-primary); box-shadow: 0 0 0 3px rgba(109,40,217,.12); }
.sdir-iconbtn {
    display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    border: 1px solid var(--sdir-border); background: #fff; border-radius: var(--sdir-radius-sm);
    padding: 9px 12px; font-size: .86rem; font-weight: 600; color: #475569; cursor: pointer;
}
.sdir-iconbtn:hover { border-color: var(--sdir-primary); color: var(--sdir-primary); }
.sdir-filter-toggle { display: none; }

/* ---- Main grid: sidebar + cards ---- */
.sdir-main { display: grid; grid-template-columns: 264px 1fr; gap: 22px; align-items: start; }

/* ---- Filter panel ---- */
.sdir-filters {
    background: var(--sdir-card); border: 1px solid var(--sdir-border);
    border-radius: var(--sdir-radius); box-shadow: var(--sdir-shadow);
    padding: 6px 18px 14px; position: sticky; top: 16px;
}
.sdir-filters .filter-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 0 12px; border-bottom: 1px solid var(--sdir-border); }
.sdir-filters h3 { font-size: 1rem; font-weight: 700; margin: 0; }
.sdir-filters .reset-link { background: transparent; border: 0; color: var(--sdir-primary); font-weight: 600; font-size: .82rem; cursor: pointer; padding: 0; }
.sdir-filters .reset-link:hover { color: var(--sdir-primary-dark); text-decoration: underline; }
.sdir-fgroup { padding: 13px 0; border-bottom: 1px solid #f1f3f9; }
.sdir-fgroup:last-child { border-bottom: 0; padding-bottom: 4px; }
.sdir-fgroup > label.flabel { display: block; font-size: .73rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--sdir-muted); margin-bottom: 8px; }
.sdir-fgroup select.sdir-select, .sdir-fgroup input.sdir-date { width: 100%; }
.sdir-date {
    border: 1px solid var(--sdir-border); border-radius: var(--sdir-radius-sm);
    padding: 8px 11px; font-size: .86rem; color: var(--sdir-text); outline: 0;
}
.sdir-date:focus { border-color: var(--sdir-primary); box-shadow: 0 0 0 3px rgba(109,40,217,.12); }
.sdir-daterow { display: flex; gap: 8px; }
.sdir-daterow .sdir-date { flex: 1; min-width: 0; }
.sdir-drawer-close { display: none; }

/* ---- Cards grid: desktop 3, tablet 2, mobile 1 ---- */
.sdir-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }

.sdir-card {
    background: var(--sdir-card); border: 1px solid var(--sdir-border);
    border-radius: var(--sdir-radius); box-shadow: var(--sdir-shadow);
    display: flex; flex-direction: column; height: 100%; overflow: hidden;
    transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.sdir-card:hover { transform: translateY(-4px); box-shadow: var(--sdir-shadow-hover); border-color: var(--sdir-border-strong); }

/* ---- Deck cover (coloured banner, hue per category) ---- */
.sdir-cover {
    position: relative; display: block; height: 132px; overflow: hidden;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%); /* fallback */
}
.sdir-cover-pattern {
    position: absolute; inset: 0; opacity: .5;
    background-image:
        radial-gradient(circle at 18% 22%, rgba(255,255,255,.18) 0, rgba(255,255,255,0) 38%),
        repeating-linear-gradient(135deg, rgba(255,255,255,.06) 0 14px, rgba(255,255,255,0) 14px 28px);
}
.sdir-cover-ico {
    position: absolute; left: 18px; bottom: 14px; color: #fff; font-size: 2.5rem;
    filter: drop-shadow(0 4px 10px rgba(0,0,0,.25)); line-height: 1;
}
.sdir-cover-type {
    position: absolute; top: 12px; left: 14px;
    background: rgba(255,255,255,.92); color: #1f2937; font-weight: 700;
    font-size: .68rem; letter-spacing: .04em; text-transform: uppercase;
    padding: 3px 9px; border-radius: 999px; box-shadow: 0 1px 3px rgba(0,0,0,.18);
}
.sdir-cover-cat {
    position: absolute; right: 14px; bottom: 14px; max-width: 60%;
    display: inline-flex; align-items: center; gap: 5px;
    background: rgba(15,23,42,.42); color: #fff; font-weight: 600; font-size: .74rem;
    padding: 4px 10px; border-radius: 999px; backdrop-filter: blur(2px);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sdir-cover-cat i { font-size: .64rem; opacity: .9; }

/* ---- Card body ---- */
.sdir-card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.sdir-card h3 { font-size: 1.04rem; font-weight: 700; margin: 0 0 8px; line-height: 1.3; min-width: 0; }
.sdir-card h3 a {
    color: var(--sdir-text);
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.sdir-card h3 a:hover { color: var(--sdir-primary); }

.sdir-bio {
    font-size: .85rem; color: #4b5563; line-height: 1.55; margin: 0 0 14px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* author row: avatar initial + name + date */
.sdir-author { display: flex; align-items: center; gap: 10px; margin: auto 0 14px; padding-top: 4px; }
.sdir-avatar {
    width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0;
    display: inline-flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: .9rem; box-shadow: 0 2px 6px rgba(16,24,40,.18);
}
.sdir-author-meta { min-width: 0; display: flex; flex-direction: column; line-height: 1.3; }
.sdir-author-name { font-size: .84rem; font-weight: 600; color: var(--sdir-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
a.sdir-author-name:hover { color: var(--sdir-primary); text-decoration: underline; }
.sdir-date { font-size: .76rem; color: var(--sdir-muted); display: inline-flex; align-items: center; gap: 5px; margin-top: 1px; }
.sdir-date i { font-size: .72rem; color: var(--sdir-faint); }

.sdir-actions { margin-top: auto; display: flex; gap: 8px; }
.sdir-btn-view {
    flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    border-radius: var(--sdir-radius-sm); padding: 10px 12px; font-size: .87rem; font-weight: 700;
    cursor: pointer; background: var(--sdir-primary); color: #fff; border: 1px solid var(--sdir-primary);
    transition: all .12s ease;
}
.sdir-btn-view:hover { background: var(--sdir-primary-dark); border-color: var(--sdir-primary-dark); color: #fff; }
.sdir-btn-dl {
    flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center;
    border-radius: var(--sdir-radius-sm); padding: 10px 14px; font-size: .9rem;
    background: #fff; color: var(--sdir-primary); border: 1px solid var(--sdir-border-strong);
    transition: all .12s ease;
}
.sdir-btn-dl:hover { background: var(--sdir-primary-soft); border-color: var(--sdir-primary); color: var(--sdir-primary-dark); }

/* admin three-dot menu (permission-gated; sits on the cover) */
.sdir-menu { position: absolute; top: 10px; right: 12px; }
.sdir-menu-btn { border: 0; background: rgba(255,255,255,.92); color: #374151; cursor: pointer; width: 28px; height: 28px; border-radius: 7px; font-size: .95rem; box-shadow: 0 1px 3px rgba(0,0,0,.18); }
.sdir-menu-btn:hover { background: #fff; }
.sdir-menu-list { position: absolute; right: 0; top: 32px; background: #fff; border: 1px solid var(--sdir-border); border-radius: var(--sdir-radius-sm); box-shadow: var(--sdir-shadow-hover); min-width: 184px; padding: 6px; display: none; z-index: 30; }
.sdir-menu-list.open { display: block; }
.sdir-menu-list a, .sdir-menu-list button { display: block; width: 100%; text-align: left; background: transparent; border: 0; padding: 8px 10px; font-size: .85rem; color: #374151; border-radius: 7px; cursor: pointer; }
.sdir-menu-list a:hover, .sdir-menu-list button:hover { background: #f3f4f6; }
.sdir-menu-list button.danger { color: var(--sdir-danger); }

/* ---- Count line ---- */
.sdir-count { color: var(--sdir-muted); font-size: .9rem; margin-bottom: 14px; }
.sdir-count strong { color: var(--sdir-text); font-weight: 700; }

/* ---- Skeleton ---- */
.sdir-skel-card { background: var(--sdir-card); border: 1px solid var(--sdir-border); border-radius: var(--sdir-radius); overflow: hidden; }
.sdir-skel-cover { height: 132px; }
.sdir-skel-body { padding: 16px 18px 18px; }
.sdir-skel-author { display: flex; align-items: center; gap: 10px; margin-top: 16px; }
.sdir-skel-avatar { width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0; }
.sdir-skel-line { height: 11px; border-radius: 6px; margin-bottom: 9px; }
.sdir-shimmer { background: linear-gradient(90deg, #eef1f6 25%, #e3e8f1 37%, #eef1f6 63%); background-size: 400% 100%; animation: sdir-shimmer 1.3s ease infinite; }
@keyframes sdir-shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }

/* ---- Empty + error states ---- */
.sdir-state { background: var(--sdir-card); border: 1px solid var(--sdir-border); border-radius: var(--sdir-radius); padding: 56px 24px; text-align: center; box-shadow: var(--sdir-shadow); }
.sdir-state .ico-circle { width: 64px; height: 64px; border-radius: 50%; background: var(--sdir-primary-soft); color: var(--sdir-primary); display: inline-flex; align-items: center; justify-content: center; font-size: 1.55rem; margin-bottom: 16px; }
.sdir-state h3 { font-size: 1.18rem; font-weight: 700; margin: 0 0 6px; }
.sdir-state p { color: var(--sdir-muted); margin: 0 0 20px; }
.sdir-state .actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ---- Pagination ---- */
.sdir-pagination { margin-top: 26px; display: flex; justify-content: center; }
.sdir-pagination nav > p, .sdir-pagination nav > div:first-child:not(.flex) { display: none; }
.sdir-pagination ul.pagination { display: flex; gap: 6px; list-style: none; padding: 0; margin: 0; flex-wrap: wrap; }
.sdir-pagination .page-item .page-link { border: 1px solid var(--sdir-border); background: #fff; color: var(--sdir-text); border-radius: 9px; padding: 8px 13px; font-size: .87rem; font-weight: 600; min-width: 40px; text-align: center; }
.sdir-pagination .page-item.active .page-link { background: var(--sdir-primary); border-color: var(--sdir-primary); color: #fff; }
.sdir-pagination .page-item.disabled .page-link { color: #c0c6d2; background: #f8fafc; }

/* ---- Buttons (shared, used in states) ---- */
.sdir-btn { border-radius: var(--sdir-radius-sm); padding: 9px 18px; font-size: .87rem; font-weight: 700; cursor: pointer; border: 1px solid transparent; }
.sdir-btn-primary { background: var(--sdir-primary); color: #fff; }
.sdir-btn-primary:hover { background: var(--sdir-primary-dark); color: #fff; }
.sdir-btn-ghost { background: #fff; color: var(--sdir-primary); border-color: var(--sdir-border-strong); }
.sdir-btn-ghost:hover { border-color: var(--sdir-primary); }

/* ---- Mobile filter drawer ---- */
.sdir-overlay { position: fixed; inset: 0; background: rgba(15,23,42,.5); z-index: 1090; display: none; }
.sdir-overlay.open { display: block; }

/* ---- Confirmation modal ---- */
.sdir-modal-overlay { position: fixed; inset: 0; background: rgba(15,23,42,.55); z-index: 1100; display: none; align-items: center; justify-content: center; padding: 16px; }
.sdir-modal-overlay.open { display: flex; }
.sdir-modal { background: #fff; border-radius: var(--sdir-radius); max-width: 420px; width: 100%; padding: 24px; box-shadow: var(--sdir-shadow-hover); }
.sdir-modal h3 { font-size: 1.12rem; font-weight: 700; margin: 0 0 8px; }
.sdir-modal p { color: var(--sdir-muted); margin: 0 0 20px; }
.sdir-modal .actions { display: flex; gap: 10px; justify-content: flex-end; }
.sdir-btn-danger { background: var(--sdir-danger); color: #fff; padding: 9px 16px; border-radius: var(--sdir-radius-sm); border: 0; font-weight: 700; cursor: pointer; }

.sdir-loading { opacity: .55; pointer-events: none; transition: opacity .15s ease; }

/* ---- Responsive ---- */
@media (max-width: 992px) {
    .sdir-main { grid-template-columns: 1fr; }
    .sdir-grid { grid-template-columns: repeat(2, 1fr); }
    .sdir-filter-toggle { display: inline-flex; align-items: center; }
    .sdir-filters {
        position: fixed; top: 0; left: 0; bottom: 0; width: 322px; max-width: 88vw; z-index: 1095;
        border-radius: 0 16px 16px 0; transform: translateX(-105%); transition: transform .22s ease;
        overflow-y: auto; box-shadow: 0 0 40px rgba(0,0,0,.2);
    }
    .sdir-filters.open { transform: translateX(0); }
    .sdir-drawer-close { display: inline-flex; border: 0; background: #f3f4f6; border-radius: 8px; width: 32px; height: 32px; align-items: center; justify-content: center; cursor: pointer; font-size: 1.1rem; }
}
@media (max-width: 640px) {
    .sdir-grid { grid-template-columns: 1fr; }
    .sdir-header h1 { font-size: 1.45rem; }
    .sdir-header { padding: 24px 0 22px; }
    .sdir-toolbar-right { width: 100%; }
    .sdir-toolbar-right .sdir-select { flex: 1; }
}