/* ==========================================================================
   Admin area B1 — badges, certificates, letters, learning materials
   Prefix: .b1-*
   ========================================================================== */

/* ---------- shared bits ---------- */
.b1-sec-head{display:flex;justify-content:space-between;align-items:baseline;gap:4px 16px;flex-wrap:wrap;margin-bottom:14px}
.b1-sec-head h2{font-size:1.2rem;margin:0}
.b1-block{margin-top:36px}
.kpi b.b1-kpi-text{font-size:1.05rem;line-height:1.35;margin-top:8px;overflow-wrap:anywhere;letter-spacing:-.01em}
.b1-min{min-width:0}
.b1-wide{min-width:220px}
.b1-mat{min-width:230px}
.b1-course{min-width:190px}
.b1-tbl th,.b1-tbl td{padding-left:12px;padding-right:12px}
.b1-filters .searchbox{flex:1 1 220px;min-width:200px}
.b1-filters .select{flex:0 1 200px;min-width:140px}
.b1-sub{display:block;margin-top:2px;font-size:.76rem;font-weight:400;color:var(--muted)}
.b1-reason{white-space:nowrap}
.b1-acts{gap:4px}
.b1-acts .icon-btn{width:34px;height:34px}
.b1-ico{width:38px;height:38px}
.icon-btn.b1-danger{color:var(--red)}
.icon-btn.b1-danger:hover{border-color:var(--red);background:#fff1f4}
.b1-checks{display:flex;flex-wrap:wrap;gap:12px 28px;margin:6px 0 18px}
.b1-main,.b1-side{min-width:0}

/* ---------- modals ---------- */
.b1-modal{max-width:560px;max-height:92vh;overflow:auto;padding:26px}
.b1-modal-lg{max-width:740px}
.b1-modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:14px}
.b1-modal-head h2{font-size:1.2rem;margin:0 0 2px}
.b1-modal-head p{margin:0}
.b1-modal-foot{justify-content:flex-end;margin-top:18px}
.b1-filter-input{margin-bottom:8px}

/* ---------- badge catalogue ---------- */
.b1-level{display:flex;align-items:center;gap:10px;margin:26px 0 12px;--lv:var(--brand)}
.b1-level h3{margin:0;font-size:1.02rem}
.b1-stars{display:inline-flex;gap:2px;color:var(--lv)}
.b1-stars svg{fill:currentColor}
.b1-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(212px,1fr));gap:16px}
.badge-tile.b1-tile{display:flex;flex-direction:column;align-items:center;padding:22px 16px 16px;border-top:3px solid var(--lv,var(--brand))}
.badge-tile.b1-tile .badge-art{width:88px;height:97px;margin:0 auto 12px}
.b1-tile-name{margin:0 0 4px;font-size:.93rem;line-height:1.35;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}
.b1-tile-meta{margin:0 0 14px}
.b1-tile-actions{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:auto}
.b1-tile-state{position:absolute;top:10px;right:10px}
.b1-tile-link{position:absolute;top:8px;left:8px;width:30px;height:30px}

/* ---------- badge form ---------- */
.b1-art{display:grid;place-items:center;text-align:center;min-height:150px;padding:14px;margin-bottom:16px;border-radius:14px;background:var(--surface-2);border:1px dashed var(--line)}
.b1-art img{width:132px;height:auto}
.b1-art p{margin:0}
.b1-color{flex:0 0 46px;width:46px;height:46px;padding:3px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}
.b1-swatch{display:inline-block;width:12px;height:12px;margin-left:5px;border-radius:4px;vertical-align:-1px}

/* ---------- letters ---------- */
.b1-issue{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr)}
.b1-issue-form{padding:22px}
.b1-issue-preview{padding:22px;background:var(--surface-2);border-left:1px solid var(--line-2);min-width:0}
.b1-prev-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:10px}
.b1-prev-head h3{margin:0;font-size:1rem}
.b1-letter{max-height:460px;overflow:auto;padding:26px 28px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-sm)}
.b1-letter-head{display:flex;flex-direction:column;gap:2px;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--brand);font-size:.8rem;color:var(--muted)}
.b1-letter-head b{font:700 1rem var(--font-display);color:var(--ink)}
.b1-letter-body{white-space:pre-wrap;overflow-wrap:anywhere;font-size:.92rem;line-height:1.75;color:var(--text)}
.b1-warn{margin:12px 0 0;padding:8px 12px;border-radius:10px;background:#fff8e6;border:1px solid #f6dda0;color:#6e4b00}
.b1-tpl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.b1-tpl{display:flex;flex-direction:column;gap:8px;padding:20px}
.b1-tpl-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.b1-tpl h3{margin:0;font-size:1rem;line-height:1.3}
.b1-tpl p{margin:0}
.b1-tpl-body{color:var(--muted);display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.b1-tpl .b1-tile-actions{justify-content:flex-start;margin-top:8px}
.b1-phs{display:flex;flex-wrap:wrap;gap:6px}
.b1-ph{display:inline-block;padding:2px 7px;border-radius:6px;background:var(--brand-50);border:1px solid #cfe1fb;color:var(--brand-ink);font:600 .76rem ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.b1-ph.bad{background:#fff8e6;border-color:#f6dda0;color:#8a5a00}
button.b1-ph-btn{cursor:pointer;transition:.15s}
button.b1-ph-btn:hover{background:var(--brand);border-color:var(--brand);color:#fff}
.b1-tpl-text{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88rem;line-height:1.6}
.b1-ph-help{margin-top:6px;padding:14px 16px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line-2)}
.b1-ph-help .label{margin-bottom:8px}
.b1-ph-list{margin:12px 0 8px;padding-left:18px;display:grid;gap:3px}
.b1-ph-help p{margin:0}

/* ---------- materials ---------- */
.b1-upload{margin-bottom:24px}
.b1-upload>summary{list-style:none;cursor:pointer}
.b1-upload>summary::-webkit-details-marker{display:none}
.b1-upload>summary>svg{margin-left:auto;transition:transform .2s}
.b1-upload[open]>summary>svg{transform:rotate(180deg)}
.b1-upload:not([open])>summary{border-bottom:0}
.b1-upload>summary:hover h2{color:var(--brand-ink)}
.b1-kinds{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:0;padding:0;border:0}
.b1-kinds legend{padding:0;margin-bottom:8px}
.b1-kind{position:relative;cursor:pointer}
.b1-kind input{position:absolute;opacity:0}
.b1-kind>span{display:grid;justify-items:start;gap:2px;height:100%;padding:14px;border:2px solid var(--line);border-radius:14px;background:#fff;transition:.15s}
.b1-kind svg{margin-bottom:4px;color:var(--brand-ink)}
.b1-kind b{font-size:.92rem;color:var(--ink)}
.b1-kind small{font-size:.76rem;line-height:1.35;color:var(--muted)}
.b1-kind:hover>span{border-color:#9fc0f5}
.b1-kind input:checked+span{border-color:var(--brand);background:var(--brand-50);box-shadow:0 0 0 3px rgba(10,102,255,.12)}
.b1-kind input:focus-visible+span{outline:3px solid rgba(10,102,255,.45);outline-offset:2px}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .b1-issue{grid-template-columns:1fr}
  .b1-issue-preview{border-left:0;border-top:1px solid var(--line-2)}
}
@media (max-width:680px){
  .b1-kinds{grid-template-columns:repeat(2,minmax(0,1fr))}
  .b1-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
  .b1-tpl-grid{grid-template-columns:1fr}
  .b1-modal{padding:20px}
  .b1-letter{padding:20px}
  .b1-issue-form,.b1-issue-preview{padding:18px}
}