/* ===== Tra cứu 227 điều học ===== */
.tc{max-width:1000px;margin:0 auto;padding:0 16px 40px}
.tc h2.tc-h{font-size:clamp(1.3rem,2.6vw,1.65rem);margin:30px 0 10px;display:flex;align-items:center;gap:10px}
.tc .lead{color:var(--muted);margin:0 0 12px}

/* bảng tám nhóm: thu gọn, bấm mới mở */
.tc-sum{margin:26px 0 0;border:1px solid var(--line);border-left:6px solid var(--gold);border-radius:16px;background:var(--card);box-shadow:var(--shadow)}
.tc-sum>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;padding:14px 16px}
.tc-sum>summary::-webkit-details-marker{display:none}
.tc-sum>summary::after{content:"＋";flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-weight:800;background:var(--acc);color:var(--paper)}
.tc-sum[open]>summary::after{content:"－"}
.tc-sum>summary:hover{background:color-mix(in srgb,var(--gold) 8%,transparent);border-radius:14px}
.tc-sum>summary:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:14px}
.tc-sum[open]>summary{border-bottom:1px dashed var(--line)}
.tc-st{flex:1;min-width:0}
.tc-st b{display:block;font-family:var(--serif);font-size-adjust:.5;font-size:clamp(1.25rem,2.4vw,1.5rem);line-height:1.25}
.tc-st span{display:block;font-size:.86rem;color:var(--muted);margin-top:2px}
.tc-sb{padding:12px 14px 14px}
.tc-tw{overflow-x:auto;border-radius:14px;border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow)}
.tc-tbl{width:100%;border-collapse:collapse;font-size:.92rem;min-width:620px}
.tc-tbl th,.tc-tbl td{padding:9px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tc-tbl th{background:color-mix(in srgb,var(--gold) 14%,var(--card));font-family:var(--serif);font-size-adjust:.5;font-size:1rem}
.tc-tbl tr:last-child td{border-bottom:0}
.tc-tbl td:first-child{border-left:5px solid var(--c);white-space:nowrap}
.tc-tbl td:first-child a{font-weight:800;color:var(--ink);text-decoration:none}
.tc-tbl td:first-child a:hover{color:var(--acc)}
.tc-tbl .pali{display:block;font-size:.8rem;color:var(--muted);font-style:italic}
.tc-tbl td.n{text-align:center;font-weight:800;font-family:var(--serif);font-size-adjust:.5;font-size:1.1rem}
.tc-tbl tr.tot td{font-weight:800;border-left:0}

/* thanh tìm kiếm */
/* không dính trên đầu trang khi cuộn (chiếm chỗ); thay bằng nút 🔎 nổi ở góc dưới để quay lại ô tìm */
.tc-bar{margin:22px 0 0;padding:0 0 10px;border-bottom:1px solid var(--line)}
#tc-fab{position:fixed;right:16px;bottom:18px;z-index:30;width:48px;height:48px;border-radius:50%;border:0;background:var(--acc);color:var(--paper);font-size:1.25rem;box-shadow:0 6px 18px rgba(0,0,0,.22);cursor:pointer;display:grid;place-items:center}
#tc-fab[hidden]{display:none}
.tc-q{position:relative}
.tc-q input{width:100%;box-sizing:border-box;font:inherit;font-size:1rem;padding:11px 42px 11px 16px;border-radius:999px;border:1.5px solid var(--line);background:var(--card);color:var(--ink)}
.tc-q input:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 3px color-mix(in srgb,var(--acc) 18%,transparent)}
.tc-q input::-webkit-search-cancel-button{-webkit-appearance:none;display:none}
.tc-q button{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:32px;height:32px;border-radius:50%;border:0;background:transparent;color:var(--muted);font-size:1.1rem;cursor:pointer}
.tc-q button[hidden]{display:none}
.tc-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tc-chips button{font:inherit;font-size:.8rem;font-weight:700;padding:5px 11px;border-radius:999px;border:1.5px solid color-mix(in srgb,var(--c,var(--acc)) 50%,var(--card));background:var(--card);color:var(--ink);cursor:pointer;white-space:nowrap}
.tc-chips button:hover{background:color-mix(in srgb,var(--c,var(--acc)) 10%,var(--card))}
.tc-chips button[aria-pressed="true"]{background:var(--c,var(--acc));border-color:var(--c,var(--acc));color:#fff}
.tc-chips small{font-weight:600;opacity:.8;margin-left:3px}
.tc-info{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px 10px;margin-top:8px;font-size:.85rem;color:var(--muted)}
.tc-info b{color:var(--ink)}
.tc-info .acts{display:flex;gap:6px}
.tc-info .acts button{font:inherit;font-size:.78rem;font-weight:700;padding:4px 10px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer}
@media(max-width:640px){
  .tc-chips{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
}

/* nhóm: mục lớn thu gọn */
#tc-list{padding-top:14px}
.tc-g{margin:0 0 12px;border:1px solid var(--line);border-left:6px solid var(--c);border-radius:16px;background:color-mix(in srgb,var(--c) 5%,var(--card));box-shadow:var(--shadow);scroll-margin-top:16px}
.tc-g>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;padding:14px 16px}
.tc-g>summary::-webkit-details-marker{display:none}
.tc-g>summary::after{content:"＋";flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-weight:800;background:var(--c);color:#fff}
.tc-g[open]>summary::after{content:"－"}
.tc-g>summary:hover{background:color-mix(in srgb,var(--c) 7%,transparent);border-radius:14px}
.tc-g>summary:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:14px}
.tc-g[open]>summary{border-bottom:1px dashed var(--line)}
.tc-gt{flex:1;min-width:0}
.tc-gh{display:block;font-family:var(--serif);font-size-adjust:.5;font-size:clamp(1.25rem,2.4vw,1.5rem);line-height:1.25}
.tc-gh i{font-family:var(--serif);font-weight:500;font-size:.62em;color:var(--muted);margin-left:8px;white-space:nowrap}
.tc-gm{display:block;font-size:.86rem;color:var(--muted);margin-top:2px}
.tc-gn{flex:none;font-weight:800;font-size:.8rem;padding:3px 10px;border-radius:999px;white-space:nowrap;background:color-mix(in srgb,var(--c) 16%,var(--card));border:1px solid color-mix(in srgb,var(--c) 45%,var(--card))}
.tc-gb{padding:12px 14px 6px}
.tc-gp{margin:0 0 10px;padding:10px 14px;border-radius:12px;background:color-mix(in srgb,var(--c) 8%,var(--card));border:1px solid color-mix(in srgb,var(--c) 28%,var(--card));font-size:.93rem}
.tc-gp p{margin:0 0 6px}.tc-gp p:last-child{margin:0}
.tc-gp ol{margin:4px 0 6px;padding-left:1.3em}

/* từng điều */
.tc-r{margin:8px 0;border:1px solid var(--line);border-left:5px solid var(--c);border-radius:14px;background:var(--card);box-shadow:var(--shadow);scroll-margin-top:16px}
.tc-r>summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:2px 12px;align-items:start;padding:10px 14px}
.tc-r>summary::-webkit-details-marker{display:none}
.tc-r>summary::after{content:"＋";font-weight:800;color:var(--muted);margin-top:2px}
.tc-r[open]>summary::after{content:"－"}
.tc-r>summary:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:12px}
.tc-so{margin-top:4px;font-size:.72rem;font-weight:800;letter-spacing:.04em;padding:3px 9px;border-radius:999px;white-space:nowrap;background:color-mix(in srgb,var(--c) 16%,var(--card));border:1px solid color-mix(in srgb,var(--c) 45%,var(--card))}
.tc-t b{font-family:var(--serif);font-size-adjust:.5;font-size:1.14rem;line-height:1.3}
.tc-t i{color:var(--muted);font-size:.85rem;margin-left:6px;white-space:nowrap}
.tc-t small{display:block;color:var(--muted);font-size:.9rem;line-height:1.45;margin-top:2px}
.tc-b{padding:2px 16px 14px;border-top:1px dashed var(--line)}
.tc-b h4{margin:12px 0 4px;font-family:var(--sans);font-size:.76rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.tc-b p{margin:0}
.tc-b ol{margin:0;padding-left:1.35em}
.tc-b ol li{margin:2px 0}
.tc-ph{margin-top:12px;padding:8px 12px;border-radius:10px;background:color-mix(in srgb,var(--c) 9%,var(--card))}
.tc-ph h4{margin-top:2px}
.tc-ph .nhe{margin-top:6px;font-size:.92rem}
.tc-kp{font-size:.93rem}
.tc-go{display:inline-block;margin-top:12px;font-weight:800;color:var(--acc);text-decoration:none}
.tc-go:hover{text-decoration:underline}
.tc-none{margin:30px 0;padding:22px;border-radius:14px;border:1.5px dashed var(--line);text-align:center;color:var(--muted)}
.tc .note{margin-top:28px;font-size:.88rem;color:var(--muted)}
@media(max-width:560px){
  .tc-r>summary{grid-template-columns:minmax(0,1fr) auto;padding:10px 12px}
  .tc-so{grid-column:1;justify-self:start;margin:0}
  .tc-t{grid-column:1}
  .tc-r>summary::after{grid-column:2;grid-row:1}
  .tc-b{padding:2px 12px 12px}
}

/* máy bật/tắt chi phần (giống Bài 2–4, chép từ bai-2.css) */
.fx{margin:10px 0 16px;border-radius:18px;padding:14px;background:color-mix(in srgb,var(--c) 6%,var(--card));border:1px solid color-mix(in srgb,var(--c) 30%,var(--line))}
.fx-h{font-size:.85rem;color:var(--muted);margin:0 0 10px}
.fx-list{display:grid;gap:8px}
.fx-i{display:grid;grid-template-columns:34px minmax(0,1fr) auto;gap:10px;align-items:center;padding:9px 12px;border-radius:13px;background:var(--card);border:1.5px solid var(--line);cursor:pointer;text-align:left;font:inherit;color:inherit;transition:border-color .15s,background .15s}
.fx-i .n{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:.85rem;background:color-mix(in srgb,var(--c) 14%,var(--card));color:var(--c)}
.fx-i b{display:block;font-size:.98rem}
.fx-i small{display:block;color:var(--muted);font-size:.84rem;line-height:1.4}
.fx-i .sw{width:44px;height:24px;border-radius:99px;background:color-mix(in srgb,var(--muted) 30%,var(--card));position:relative;transition:background .2s;flex:none}
.fx-i .sw::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.25);transition:left .2s}
.fx-i[aria-pressed="true"]{border-color:color-mix(in srgb,var(--c) 55%,var(--card));background:color-mix(in srgb,var(--c) 8%,var(--card))}
.fx-i[aria-pressed="true"] .sw{background:var(--c)}
.fx-i[aria-pressed="true"] .sw::after{left:23px}
.fx-out{margin-top:10px;padding:12px 14px;border-radius:13px;font-size:.95rem;line-height:1.5;background:var(--card);border-left:5px solid var(--ok)}
.fx-out.all{border-left-color:var(--no);background:color-mix(in srgb,var(--no) 8%,var(--card))}
.fx-out b{font-family:var(--serif);font-size-adjust:.5;font-size:1.05rem}
.fx-tools{display:flex;gap:8px;margin-top:8px}
.fx-out.nhe{border-left-color:var(--saff)}
.fx-out li{margin:4px 0}
.fx-out ul{margin:6px 0 0;padding-left:1.1em}
.fx-out ul b{font-family:var(--sans);font-size-adjust:none;font-size:inherit}
.tc-b .fx{margin:4px 0 6px}
.tc-gp .fx{margin:8px 0}
@media(max-width:560px){.fx{padding:10px}.fx-i{grid-template-columns:28px minmax(0,1fr) auto;padding:8px 10px;gap:8px}.fx-i .n{width:26px;height:26px}}