/* Giao diện ấm, tối giản theo tinh thần Claude: nền kem, chữ than, điểm nhấn cam đất. */
:root{
  --bg:#faf9f5;--side:#f2f0e8;--panel:#ffffff;--ink:#28261f;--ink2:#5d5a50;--mute:#8d897c;--line:#e6e2d6;--line2:#d9d4c5;
  --acc:#c96442;--acc2:#b35538;--accbg:#f7e9e2;--ok:#4f7a4a;--warn:#a8691b;--bad:#b3412f;--user:#efece3;
  --shadow:0 1px 2px rgba(40,38,31,.05),0 4px 16px rgba(40,38,31,.06);
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;--sans:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --bg:#262624;--side:#1f1e1d;--panel:#30302e;--ink:#ece9e1;--ink2:#c2beb3;--mute:#8f8b80;--line:#3a3936;--line2:#4a4844;
  --acc:#d97757;--acc2:#e08a6c;--accbg:#3d2c25;--ok:#8fbf86;--warn:#e0a94f;--bad:#e27b6a;--user:#393836;
  --shadow:0 1px 2px rgba(0,0,0,.25),0 4px 16px rgba(0,0,0,.25)}}
:root[data-theme=dark]{--bg:#262624;--side:#1f1e1d;--panel:#30302e;--ink:#ece9e1;--ink2:#c2beb3;--mute:#8f8b80;--line:#3a3936;--line2:#4a4844;
  --acc:#d97757;--acc2:#e08a6c;--accbg:#3d2c25;--ok:#8fbf86;--warn:#e0a94f;--bad:#e27b6a;--user:#393836}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font:15px/1.6 var(--sans);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--acc)}
.hidden{display:none!important}

/* nút */
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line2);background:var(--panel);border-radius:10px;padding:7px 12px;color:var(--ink)}
.btn:hover{background:var(--side)}
.btn.primary{background:var(--acc);border-color:var(--acc);color:#fff}
.btn.primary:hover{background:var(--acc2)}
.btn.ghost{border-color:transparent;background:transparent}
.btn.ghost:hover{background:var(--line)}
.btn.sm{padding:4px 9px;font-size:13px;border-radius:8px}
.btn.danger{color:var(--bad)}
.icon{width:18px;height:18px;flex:none}
input[type=text],input[type=password],input[type=number],input[type=search],input:not([type]),select,textarea{
  background:var(--panel);border:1px solid var(--line2);border-radius:10px;padding:8px 11px;outline:none;width:100%}
input:focus,select:focus,textarea:focus{border-color:var(--acc);box-shadow:0 0 0 3px var(--accbg)}

/* đăng nhập */
.overlay{position:fixed;inset:0;background:rgba(20,19,16,.45);display:grid;place-items:center;z-index:50;padding:16px}
.modal{background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:28px;width:min(400px,100%)}
.modal h2{font:500 26px/1.2 var(--serif);margin:0 0 6px}
.modal form{display:grid;gap:12px;margin-top:16px}
.err{color:var(--bad);min-height:1.2em;margin:0;font-size:14px}
.note{color:var(--mute);font-size:13px}

/* bảng & thẻ dùng chung */
table{width:100%;border-collapse:collapse;font-size:14px}
th{font-weight:600;color:var(--ink2);text-align:left;font-size:12.5px;text-transform:uppercase;letter-spacing:.03em}
td,th{border-bottom:1px solid var(--line);padding:8px 8px;vertical-align:top}
.chip{display:inline-flex;align-items:center;gap:4px;border:1px solid var(--line2);border-radius:99px;padding:1px 9px;font-size:12px;color:var(--ink2);background:var(--panel);white-space:nowrap}
.chip.acc{color:var(--acc);border-color:color-mix(in srgb,var(--acc) 45%,transparent);background:var(--accbg)}
.chip.ok{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 45%,transparent)}
.chip.warn{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 45%,transparent)}
.chip.bad{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 45%,transparent)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:16px}
.card h3{margin:0 0 4px;font:600 16px/1.3 var(--sans)}
.card .sub{color:var(--mute);font-size:13.5px;margin:0 0 14px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.grid label,.field{display:grid;gap:5px;font-size:13px;color:var(--ink2)}
.check{display:flex!important;align-items:center;gap:8px;grid-template-columns:none}
.check input{width:auto}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.spacer{flex:1}

/* markdown */
.md{overflow-wrap:anywhere}
.md>*:first-child{margin-top:0}.md>*:last-child{margin-bottom:0}
.md p{margin:0 0 .8em}
.md h1,.md h2,.md h3,.md h4{font-family:var(--sans);font-weight:650;line-height:1.3;margin:1.2em 0 .5em}
.md h1{font-size:1.25em}.md h2{font-size:1.12em}.md h3,.md h4{font-size:1em}
.md ul,.md ol{margin:0 0 .9em;padding-left:1.4em}.md li{margin:.25em 0}
.md li>p{margin:0}
.md strong{font-weight:620}
.md code{font-family:var(--mono);font-size:.88em;background:var(--side);border:1px solid var(--line);border-radius:5px;padding:.05em .35em}
.md pre{background:var(--side);border:1px solid var(--line);border-radius:10px;padding:12px 14px;overflow:auto}
.md pre code{border:0;background:none;padding:0}
.md table{margin:.6em 0 1em;font-size:14px}.md th{text-transform:none;letter-spacing:0;font-size:14px}
.md blockquote{margin:0 0 .9em;padding-left:12px;border-left:3px solid var(--line2);color:var(--ink2)}
.md .cite{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 4px;margin:0 1px;
  font:600 11px/1 var(--sans);color:var(--acc);background:var(--accbg);border-radius:6px;vertical-align:2px;cursor:pointer}
.md .cite:hover{background:var(--acc);color:#fff}

/* căn thẳng form: ô nhập cùng chiều cao, nhãn không kéo giãn ô */
input[type=text],input[type=password],input[type=number],input[type=search],input:not([type]),select{height:38px}
.grid{align-items:end}
.grid label,.field{align-content:start}
.grid label>.note{min-height:0}

/* danh sách cài đặt: nhãn + mô tả bên trái, điều khiển bên phải, mọi hàng thẳng cột */
.setlist{display:grid}
.setrow{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:center;padding:14px 0;border-top:1px solid var(--line)}
.setrow:first-child{border-top:0;padding-top:4px}
.setrow .lbl b{display:block;font-weight:550;font-size:14px;color:var(--ink)}
.setrow .lbl span{display:block;color:var(--mute);font-size:13px;margin-top:2px}
.setrow .ctl{display:flex;justify-content:flex-end}
.setrow .ctl input,.setrow .ctl select{width:100%}
.formfoot{display:flex;justify-content:flex-end;align-items:center;gap:12px;padding-top:14px;margin-top:4px;border-top:1px solid var(--line)}
.formfoot .msg{margin:0;color:var(--ok)}
@media (max-width:640px){.setrow{grid-template-columns:1fr;gap:8px}.setrow .ctl{justify-content:flex-start}}

/* công tắc bật/tắt */
.switch{position:relative;display:inline-block;width:40px;height:23px;flex:none}
.switch input{opacity:0;width:0;height:0;position:absolute}
.switch i{position:absolute;inset:0;border-radius:99px;background:var(--line2);transition:background .15s}
.switch i::after{content:"";position:absolute;width:17px;height:17px;left:3px;top:3px;border-radius:99px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.2);transition:transform .15s}
.switch input:checked+i{background:var(--acc)}
.switch input:checked+i::after{transform:translateX(17px)}
.switch input:focus-visible+i{box-shadow:0 0 0 3px var(--accbg)}

/* bảng có ô nhập: cột cố định, ô nhập lấp đầy cột */
table.edit{table-layout:fixed;min-width:860px}
table.edit td{vertical-align:middle}
table.edit td input:not([type=checkbox]),table.edit td select,table.edit td textarea{width:100%}
table.edit td.ctr{text-align:center}

/* thông báo nổi */
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:12px;
  font-size:14px;box-shadow:var(--shadow);z-index:60;max-width:min(560px,calc(100% - 32px))}