/* C|ND Lab Simulator — bilingual (EN / AR) styles
   Prepared by Dr. Mohamed Al-Shamey */
:root{
  --bg:#0d1117; --panel:#161b22; --panel2:#1c2330; --border:#2a3240;
  --ink:#e6edf3; --muted:#8b98a9; --accent:#2f81f7; --accent2:#1f6feb;
  --green:#3fb950; --red:#f85149; --amber:#d29922; --term-bg:#0a0e14; --term-ink:#c9d1d9;
  --chip:#21324d; --hdr1:#111826; --hdr2:#0d1117;
  --mono:ui-monospace,SFMono-Regular,"Cascadia Code",Consolas,monospace;
  --sans:"Inter",system-ui,"Segoe UI",Roboto,Arial,sans-serif;
  --ar:"Cairo","Tajawal",system-ui,"Segoe UI",Tahoma,sans-serif;
  --radius:12px; --shadow:0 6px 24px rgba(0,0,0,.25);
}
:root[data-theme="light"]{
  --bg:#f4f6fa; --panel:#ffffff; --panel2:#eef1f6; --border:#d4dae3;
  --ink:#1b2430; --muted:#5d6b7d; --accent:#1f6feb; --accent2:#1f6feb;
  --green:#1a7f37; --red:#cf222e; --amber:#9a6700;
  --term-bg:#0d1117; --term-ink:#c9d1d9; --chip:#e3ecfb; --hdr1:#ffffff; --hdr2:#eef3fb;
  --shadow:0 6px 20px rgba(20,40,80,.08);
}
:root[data-theme="blue"]{
  --bg:#071a2f; --panel:#0c2744; --panel2:#103355; --border:#1d4a74;
  --ink:#e6f1ff; --muted:#8fb4d9; --accent:#4ba3ff; --accent2:#2f81f7;
  --green:#38d39f; --red:#ff6b6b; --amber:#e8b84b;
  --term-bg:#04101f; --term-ink:#cfe3f7; --chip:#13406b; --hdr1:#0c2744; --hdr2:#071a2f;
}
:root[data-theme="sand"]{
  --bg:#f3ece0; --panel:#fbf6ec; --panel2:#efe6d5; --border:#d9cbb2;
  --ink:#3a2f1f; --muted:#7a6a52; --accent:#b7791f; --accent2:#a86a16;
  --green:#5b7a1a; --red:#b4451f; --amber:#8a5a00;
  --term-bg:#2b2318; --term-ink:#e7dcc6; --chip:#ece0c9; --hdr1:#fbf6ec; --hdr2:#efe6d5;
}
:root[data-theme="green"]{
  --bg:#071712; --panel:#0c2419; --panel2:#103022; --border:#1c4a35;
  --ink:#e4f6ec; --muted:#8fc9ab; --accent:#3fdf8f; --accent2:#2bb673;
  --green:#4ade80; --red:#ff7a7a; --amber:#e8c44b;
  --term-bg:#04120c; --term-ink:#cdeedb; --chip:#124230; --hdr1:#0c2419; --hdr2:#071712;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--ink);font:14px/1.6 var(--sans);display:flex;flex-direction:column;height:100vh;overflow:hidden}
html[lang="ar"] body{font-family:var(--ar);font-size:14.5px}
button,input,select,textarea{font-family:inherit}
a{color:var(--accent)}

/* ---------- header ---------- */
.app-header{display:flex;align-items:center;gap:12px;padding:8px 16px;background:linear-gradient(90deg,var(--hdr1),var(--hdr2));border-bottom:1px solid var(--border);flex:0 0 auto;min-height:60px}
.brand{display:flex;align-items:center;gap:10px;cursor:pointer;min-width:0}
.brand .logo{width:38px;height:38px;flex:0 0 auto}
.brand .txt{min-width:0}
.brand h1{font-size:15.5px;margin:0;font-weight:700;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand .by{font-size:11.5px;color:var(--muted);white-space:nowrap}
.brand .by b{color:var(--accent);font-weight:600}
.spacer{flex:1}
.hdr-actions{display:flex;align-items:center;gap:8px}
.hbtn{background:var(--panel2);color:var(--ink);border:1px solid var(--border);border-radius:8px;padding:6px 11px;cursor:pointer;font-size:12.5px;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.hbtn:hover{border-color:var(--accent)}
.hbtn.lang{font-weight:700;min-width:64px;justify-content:center}
.hsel{background:var(--panel2);color:var(--ink);border:1px solid var(--border);border-radius:8px;padding:6px 8px;font-size:12.5px}
.stat-pill{font-size:12px;color:var(--muted);border:1px solid var(--border);border-radius:20px;padding:3px 10px;white-space:nowrap}
.menu-btn{display:none}
.theme-lbl{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}
.app-header{max-width:100vw;overflow:hidden}

/* ---------- layout ---------- */
.wrap{display:flex;flex:1;min-height:0;position:relative}
#sidebar{width:320px;flex:0 0 auto;background:var(--panel);border-inline-end:1px solid var(--border);overflow-y:auto;padding:10px}
#sidebar .search{width:100%;padding:9px 11px;background:var(--term-bg);border:1px solid var(--border);border-radius:8px;color:var(--term-ink);margin-bottom:8px}
.side-filters{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:6px}
.side-filters button{background:transparent;border:1px solid var(--border);color:var(--muted);border-radius:20px;padding:2px 10px;font-size:11.5px;cursor:pointer}
.side-filters button.on{background:var(--accent2);border-color:var(--accent2);color:#fff}
.side-home{display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:8px;cursor:pointer;font-weight:600;border:1px solid transparent}
.side-home:hover,.side-home.active{background:var(--panel2);border-color:var(--accent)}
.labitem{display:flex;gap:8px;align-items:flex-start;padding:8px 10px;border-radius:8px;cursor:pointer;border:1px solid transparent}
.labitem:hover{background:var(--panel2)}
.labitem.active{background:var(--panel2);border-color:var(--accent)}
.labitem .num{font:11px/1.8 var(--mono);color:var(--muted);min-width:38px}
.labitem .t{flex:1;min-width:0}
.labitem .t b{font-weight:600;font-size:13px;display:block}
.labitem .t span{color:var(--muted);font-size:11px}
.mini-bar{height:3px;background:var(--border);border-radius:3px;margin-top:4px;overflow:hidden}
.mini-bar i{display:block;height:100%;background:var(--accent)}
.labitem.done .mini-bar i{background:var(--green)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--border);margin-top:6px;flex:0 0 auto}
.dot.done{background:var(--green)}
.dot.prog{background:var(--amber)}
.group-label{color:var(--muted);font-size:10.5px;text-transform:uppercase;letter-spacing:.8px;padding:12px 10px 4px}
html[lang="ar"] .group-label{letter-spacing:0;font-size:12px}
#main{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden}
.tabs{display:flex;gap:2px;padding:8px 14px 0;background:var(--panel);border-bottom:1px solid var(--border);flex:0 0 auto;overflow-x:auto}
.tabs:empty{display:none}
.tab{padding:8px 14px;cursor:pointer;color:var(--muted);border:1px solid transparent;border-bottom:none;border-radius:8px 8px 0 0;white-space:nowrap;font-size:13px;display:flex;gap:6px;align-items:center}
.tab:hover{color:var(--ink)}
.tab.active{color:var(--ink);background:var(--bg);border-color:var(--border);font-weight:600}
.tab .cnt{font-size:10.5px;background:var(--chip);border-radius:10px;padding:0 6px}
.content{flex:1;overflow-y:auto;padding:20px 26px 40px}
.view{max-width:1080px;margin:0 auto}
.lab-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap;margin-bottom:6px}
h2.lab{margin:0 0 4px;font-size:21px}
.obj{color:var(--muted);margin:0 0 16px}
.timer{font:12px var(--mono);color:var(--muted);border:1px solid var(--border);border-radius:20px;padding:3px 10px;white-space:nowrap}
.meta-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.chip{background:var(--chip);border:1px solid var(--border);border-radius:20px;padding:3px 11px;font-size:12px;color:var(--ink)}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;margin-bottom:14px}
.card h3{margin:0 0 8px;font-size:14px;color:var(--accent)}
.card .muted,.muted{color:var(--muted)}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* ---------- steps ---------- */
ol.steps{margin:0;padding:0;list-style:none;counter-reset:s}
ol.steps li{counter-increment:s;display:flex;gap:10px;padding:10px 0;border-bottom:1px dashed var(--border)}
ol.steps li:last-child{border-bottom:none}
ol.steps li .num{background:var(--panel2);border:1px solid var(--border);color:var(--muted);min-width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font:12px var(--mono);flex:0 0 auto;cursor:pointer}
ol.steps li.done .num{background:var(--green);color:#06210f;border-color:var(--green)}
ol.steps li .stxt{flex:1;min-width:0}
ol.steps li.done .stxt>p{color:var(--muted)}
ol.steps li .stxt>p{margin:2px 0}
.step-actions{display:flex;gap:6px;margin-top:6px;flex-wrap:wrap}
.sbtn{font-size:11.5px;color:var(--ink);cursor:pointer;border:1px solid var(--border);border-radius:6px;padding:2px 9px;background:var(--panel2)}
.sbtn:hover{border-color:var(--accent);color:var(--accent)}
code,kbd{font-family:var(--mono);background:var(--panel2);padding:1px 5px;border-radius:4px;font-size:12.5px}
pre{background:var(--term-bg);border:1px solid var(--border);border-radius:8px;padding:10px 12px;overflow:auto;font-family:var(--mono);font-size:12.5px;color:var(--term-ink);direction:ltr;text-align:left;margin:6px 0 0}
.progress{height:8px;background:var(--panel2);border-radius:8px;overflow:hidden;border:1px solid var(--border)}
.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--accent2),var(--accent));transition:width .4s}
.progress.ok i{background:linear-gradient(90deg,#2ea043,var(--green))}

/* ---------- terminal ---------- */
.sim-tools{margin-bottom:10px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.sim-tools label{font-size:12px;color:var(--muted);display:flex;gap:6px;align-items:center}
.sim-tools select{background:var(--term-bg);color:var(--term-ink);border:1px solid var(--border);border-radius:6px;padding:5px 8px}
.sim-layout{display:grid;grid-template-columns:1fr 280px;gap:14px}
.term{background:var(--term-bg);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;height:520px;direction:ltr;text-align:left;box-shadow:var(--shadow)}
.term .bar{background:#11161f;padding:7px 12px;border-bottom:1px solid #222a36;font:12px var(--mono);color:#8b98a9;display:flex;gap:8px;align-items:center}
.term .bar .dots{display:flex;gap:6px}.term .bar .dots i{width:11px;height:11px;border-radius:50%;display:block}
.term .bar .dots i:nth-child(1){background:#f85149}.term .bar .dots i:nth-child(2){background:#d29922}.term .bar .dots i:nth-child(3){background:#3fb950}
.term .bar .ttl{flex:1;text-align:center}
.term .out{flex:1;overflow-y:auto;padding:10px 12px;font-family:var(--mono);font-size:12.5px;color:var(--term-ink);white-space:pre-wrap;word-break:break-word}
.term .out .cmd{color:#58a6ff}.term .out .pr{color:#3fb950}
.term .out .err{color:#f85149}.term .out .ok{color:#3fb950}.term .out .warn{color:#d29922}.term .out .sys{color:#8b98a9;font-style:italic}
.term .out .stepdone{color:#3fb950;font-weight:700}
.term .inrow{display:flex;align-items:center;border-top:1px solid #222a36;background:#0a0e14;padding:7px 10px;gap:8px}
.term .inrow .ps{color:#3fb950;font-family:var(--mono);font-size:12.5px;white-space:nowrap}
.term .inrow input{flex:1;background:transparent;border:none;color:#c9d1d9;font-family:var(--mono);font-size:12.5px;outline:none;min-width:0}
.term .cursor{display:inline-block;width:7px;height:14px;background:#c9d1d9;vertical-align:middle;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.side-panel .card{padding:12px}
.side-panel h4{margin:0 0 8px;font-size:13px;color:var(--accent)}
.sugg{display:flex;flex-direction:column;gap:6px}
.sugg button{text-align:start;background:var(--panel2);border:1px solid var(--border);color:var(--ink);border-radius:6px;padding:6px 8px;font:11.5px var(--mono);cursor:pointer;direction:ltr;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sugg button:hover{border-color:var(--accent)}
.sugg button.done{opacity:.55;text-decoration:line-through}
.sugg .h{font-family:var(--sans);font-size:10.5px;color:var(--muted);display:block}
.kbd-help{font-size:11.5px;color:var(--muted);line-height:1.9}

/* ---------- logs ---------- */
.console{background:var(--term-bg);border:1px solid var(--border);border-radius:10px;overflow:hidden;margin-bottom:14px;direction:ltr;text-align:left}
.console .ch{background:#11161f;color:#e6edf3;padding:8px 12px;font-weight:600;font-size:12.5px;border-bottom:1px solid #222a36;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;align-items:center}
.console .ch .src{color:#8b98a9;font-weight:400}
.console .ctools{display:flex;gap:6px;align-items:center}
.console .ctools input{background:#0a0e14;border:1px solid #2a3240;color:#c9d1d9;border-radius:5px;padding:3px 7px;font-size:11.5px;width:150px}
.console .ctools label{font-size:11px;color:#8b98a9;display:flex;gap:4px;align-items:center;font-weight:400}
.console .cb{max-height:320px;overflow:auto}
table.log{width:100%;border-collapse:collapse;font:12px var(--mono);color:#c9d1d9}
table.log th,table.log td{text-align:left;padding:6px 9px;border-bottom:1px solid #222a36;vertical-align:top}
table.log th{color:#8b98a9;position:sticky;top:0;background:#11161f}
table.log tr.hl{background:rgba(248,81,73,.10)}
table.log tr.alert td:first-child{border-left:3px solid #f85149}
table.log tr.flagged{outline:1px solid #d29922;background:rgba(210,153,34,.12)}
table.log tbody tr{cursor:pointer}
table.log tbody tr:hover{background:rgba(88,166,255,.07)}

/* ---------- worksheet ---------- */
.ws-field{margin-bottom:12px}
.ws-field label{display:block;font-weight:600;margin-bottom:4px;font-size:13px}
.ws-field .help{color:var(--muted);font-size:11.5px;margin-bottom:5px}
.ws-field textarea,.ws-field input,.ws-field select{width:100%;background:var(--term-bg);border:1px solid var(--border);border-radius:6px;color:var(--term-ink);padding:8px;font-size:13px}
.ws-field textarea{min-height:64px;resize:vertical}
.wsgrid{overflow:auto}
table.ws{width:100%;border-collapse:collapse;font-size:12.5px;min-width:560px}
table.ws th,table.ws td{border:1px solid var(--border);padding:3px}
table.ws th{background:var(--panel2);color:var(--muted);font-size:11.5px;padding:6px}
table.ws td input{width:100%;background:transparent;border:none;color:var(--ink);padding:5px;font-size:12.5px}
table.ws td input:focus{background:var(--panel2);outline:1px solid var(--accent)}
.saved-ind{font-size:11.5px;color:var(--green);opacity:0;transition:opacity .3s}
.saved-ind.on{opacity:1}

/* ---------- buttons / notes ---------- */
.btn{background:var(--accent2);color:#fff;border:none;border-radius:8px;padding:9px 16px;cursor:pointer;font-size:13px;font-weight:600;display:inline-flex;gap:6px;align-items:center}
.btn:hover{background:var(--accent)}
.btn.sec{background:var(--panel2);border:1px solid var(--border);color:var(--ink)}
.btn.sec:hover{border-color:var(--accent)}
.btn.ok{background:#238636}
.btn.danger{background:transparent;border:1px solid var(--red);color:var(--red)}
.check-result{margin-top:14px;padding:14px;border-radius:8px;display:none}
.check-result.pass{display:block;background:rgba(63,185,80,.1);border:1px solid var(--green)}
.check-result.fail{display:block;background:rgba(210,153,34,.1);border:1px solid var(--amber)}
.check-list{list-style:none;padding:0;margin:8px 0 0}
.check-list li{padding:5px 0;display:flex;gap:8px}
.check-list li .mk{font-family:var(--mono);font-weight:700}
.check-list li.y .mk{color:var(--green)}.check-list li.n .mk{color:var(--amber)}
.note{background:rgba(47,129,247,.08);border-inline-start:3px solid var(--accent);padding:10px 14px;border-radius:8px;margin:12px 0;font-size:12.5px}
.warnbox{background:rgba(248,81,73,.08);border-inline-start:3px solid var(--red);padding:10px 14px;border-radius:8px;margin:12px 0;font-size:12.5px}
.topo{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;margin:6px 0}
.topo .vm{background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:10px;font-size:12px}
.topo .vm b{display:block;color:var(--accent);font-family:var(--mono)}
.topo .vm span{color:var(--muted);font-size:11px;direction:ltr;display:inline-block}

/* ---------- score ---------- */
.score-wrap{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.ring{--p:0;width:120px;height:120px;border-radius:50%;background:conic-gradient(var(--accent) calc(var(--p)*1%),var(--panel2) 0);display:grid;place-items:center;flex:0 0 auto}
.ring.ok{background:conic-gradient(var(--green) calc(var(--p)*1%),var(--panel2) 0)}
.ring>div{width:94px;height:94px;border-radius:50%;background:var(--panel);display:grid;place-items:center;text-align:center}
.ring b{font-size:24px;display:block;line-height:1}
.ring small{font-size:10.5px;color:var(--muted)}
.score-break{flex:1;min-width:220px}
.score-break .row{display:flex;justify-content:space-between;font-size:12.5px;padding:3px 0;border-bottom:1px dashed var(--border)}

/* ---------- dashboard ---------- */
.hero{position:relative;overflow:hidden;border-radius:16px;padding:28px 28px 24px;background:radial-gradient(1200px 300px at 0% 0%,rgba(47,129,247,.30),transparent 60%),radial-gradient(800px 260px at 100% 100%,rgba(63,185,80,.18),transparent 60%),var(--panel);border:1px solid var(--border);margin-bottom:18px;box-shadow:var(--shadow)}
.hero h2{margin:0 0 6px;font-size:26px;line-height:1.3}
.hero p{margin:0 0 14px;color:var(--muted);max-width:760px}
.hero .author{display:inline-flex;align-items:center;gap:10px;background:var(--panel2);border:1px solid var(--border);border-radius:30px;padding:5px 14px 5px 6px;font-size:13px;margin-bottom:14px}
html[dir="rtl"] .hero .author{padding:5px 6px 5px 14px}
.hero .author .av{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--accent2),var(--green));display:grid;place-items:center;color:#fff;font-weight:700;font-size:12px}
.hero .author b{color:var(--accent)}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}
.kpi{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}
.kpi .v{font-size:24px;font-weight:700}
.kpi .l{font-size:12px;color:var(--muted)}
.dash-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:14px;margin-bottom:18px}
.grp-row{margin-bottom:10px}
.grp-row .gl{display:flex;justify-content:space-between;font-size:12.5px;margin-bottom:4px}
.lab-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.lcard{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:14px;cursor:pointer;display:flex;flex-direction:column;gap:8px;transition:transform .15s,border-color .15s}
.lcard:hover{transform:translateY(-2px);border-color:var(--accent)}
.lcard .top{display:flex;justify-content:space-between;align-items:center}
.lcard .n{font:12px var(--mono);color:var(--accent)}
.lcard h4{margin:0;font-size:14px;line-height:1.4}
.lcard p{margin:0;color:var(--muted);font-size:12px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.lcard .foot{display:flex;justify-content:space-between;font-size:11.5px;color:var(--muted);margin-top:auto}
.badge{font-size:10.5px;border-radius:20px;padding:1px 8px;border:1px solid var(--border);color:var(--muted)}
.badge.done{background:rgba(63,185,80,.15);border-color:var(--green);color:var(--green)}
.badge.prog{background:rgba(210,153,34,.15);border-color:var(--amber);color:var(--amber)}
.section-title{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin:6px 0 10px}
.section-title h3{margin:0;font-size:16px}
.topo-svg{width:100%;height:auto;display:block}
.topo-svg .node rect{fill:var(--panel2);stroke:var(--border);stroke-width:1.5}
.topo-svg .node:hover rect{stroke:var(--accent)}
.topo-svg .node text{fill:var(--ink);font:600 12px var(--mono)}
.topo-svg .node .r{fill:var(--muted);font:10px var(--sans)}
.topo-svg .link{stroke:var(--accent);stroke-width:1.6;stroke-dasharray:5 4;animation:dash 1.2s linear infinite;opacity:.7}
.topo-svg .zone{fill:none;stroke:var(--border);stroke-dasharray:3 3}
.topo-svg .zl{fill:var(--muted);font:600 10px var(--sans);letter-spacing:.6px}
@keyframes dash{to{stroke-dashoffset:-18}}
.app-footer{margin-top:26px;padding-top:14px;border-top:1px solid var(--border);color:var(--muted);font-size:12px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* ---------- toast & modal ---------- */
#toasts{position:fixed;bottom:18px;inset-inline-end:18px;display:flex;flex-direction:column;gap:8px;z-index:60}
.toast{background:var(--panel);border:1px solid var(--border);border-inline-start:4px solid var(--accent);color:var(--ink);padding:10px 14px;border-radius:8px;box-shadow:var(--shadow);font-size:13px;max-width:340px;animation:tin .25s ease}
.toast.ok{border-inline-start-color:var(--green)}
.toast.warn{border-inline-start-color:var(--amber)}
@keyframes tin{from{opacity:0;transform:translateY(8px)}}
.modal-bg{position:fixed;inset:0;background:rgba(0,0,0,.55);display:none;align-items:center;justify-content:center;z-index:50;padding:16px}
.modal-bg.on{display:flex}
.modal{background:var(--panel);border:1px solid var(--border);border-radius:14px;max-width:560px;width:100%;padding:20px;box-shadow:var(--shadow);max-height:90vh;overflow:auto}
.modal h3{margin:0 0 10px}
.modal input[type=text]{width:100%;padding:9px;background:var(--term-bg);border:1px solid var(--border);border-radius:6px;color:var(--term-ink);margin:6px 0 12px}

/* ---------- report / certificate ---------- */
.report table{width:100%;border-collapse:collapse;font-size:12.5px}
.report th,.report td{border-bottom:1px solid var(--border);padding:7px 8px;text-align:start}
.report th{color:var(--muted);font-size:11.5px}
.cert{background:#fffdf7;color:#1b2430;border:10px double #b7791f;border-radius:6px;padding:40px 36px;text-align:center;margin:10px 0 18px;position:relative}
.cert .seal{width:74px;height:74px;margin:0 auto 10px}
.cert h2{font-size:28px;margin:4px 0;color:#1f3b73;letter-spacing:.5px}
.cert .sub{color:#7a6a52;font-size:13px}
.cert .name{font-size:26px;font-weight:700;margin:16px 0 4px;color:#1b2430;border-bottom:1px solid #d9cbb2;display:inline-block;padding:0 30px 4px}
.cert .body{max-width:560px;margin:10px auto;font-size:14px;color:#3a2f1f}
.cert .sig{display:flex;justify-content:space-around;margin-top:26px;font-size:12.5px;gap:20px;flex-wrap:wrap}
.cert .sig div{min-width:180px;border-top:1px solid #7a6a52;padding-top:6px}
.cert .sig b{display:block;font-size:14px;color:#1f3b73}

::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#30363d;border-radius:5px}
.empty{color:var(--muted);text-align:center;padding:60px 20px}
.sidebar-backdrop{display:none}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .sim-layout{grid-template-columns:1fr}
  .kpis{grid-template-columns:repeat(2,1fr)}
  .dash-grid{grid-template-columns:1fr}
}
@media (max-width:860px){
  .menu-btn{display:inline-flex}
  #sidebar{position:fixed;top:60px;bottom:0;inset-inline-start:0;z-index:40;transform:translateX(-105%);transition:transform .25s;box-shadow:var(--shadow);width:86vw;max-width:340px}
  html[dir="rtl"] #sidebar{transform:translateX(105%)}
  body.side-open #sidebar{transform:translateX(0)}
  body.side-open .sidebar-backdrop{display:block;position:fixed;inset:60px 0 0 0;background:rgba(0,0,0,.45);z-index:35}
  .content{padding:14px 14px 40px}
  .brand .by{display:none}
  .stat-pill,.hide-sm,.theme-lbl{display:none}
  .lab-head .timer{order:-1}
  .sim-layout .side-panel{order:2}
  .term{height:430px}
  .hero{padding:20px 18px}
  .hero h2{font-size:21px}
}
@media (max-width:520px){
  .brand h1{font-size:13.5px;max-width:44vw}
  .hbtn .lbl{display:none}
  .hsel{max-width:78px}
}

/* ---------- print ---------- */
@media print{
  body{height:auto;overflow:visible;background:#fff;color:#000;display:block}
  .app-header,#sidebar,.tabs,.no-print,#toasts,.sidebar-backdrop{display:none!important}
  .wrap,#main,.content{display:block;overflow:visible;height:auto;padding:0}
  .card{border-color:#ccc;background:#fff;color:#000;break-inside:avoid}
  .report th,.report td{border-color:#ccc;color:#000}
}