:root{
  --paper: #e9dfc2;
  --paper-dark: #ddd0a8;
  --card: #f7f0d9;
  --ink: #2b2418;
  --ink-soft: #5c5238;
  --stamp-red: #9c3b2e;
  --stamp-red-dark: #7a2d22;
  --olive: #4a5d3a;
  --olive-dark: #37452a;
  --gold: #b6892f;
  --ok-green: #3f6b3f;
  --bad-red: #9c3b2e;
  --line: #8c7f5c;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:'Courier Prime', monospace;
  color:var(--ink);
  background:var(--paper);
}
a{color:inherit;}
.wrap{max-width:1000px; margin:0 auto; padding:0 0 60px; position:relative;}
.tab{
  background:var(--olive); color:#f2ead0; display:inline-block;
  padding:10px 28px; font-family:'Special Elite', monospace; font-size:13px;
  letter-spacing:2px; margin:0 0 0 24px; border-radius:6px 6px 0 0; position:relative; top:2px;
}
.topbar{
  display:flex; justify-content:space-between; align-items:center;
  padding:14px 24px; font-family:'Special Elite', monospace; font-size:13px;
}
.brand{font-size:16px; text-decoration:none;}
.authbox{display:flex; align-items:center; gap:10px; font-family:'Courier Prime', monospace; font-size:13px;}
.authbox button{
  font-family:'Special Elite', monospace; font-size:12px; letter-spacing:0.5px;
  background:var(--olive); color:#f2ead0; border:1.5px solid var(--olive-dark);
  border-radius:3px; padding:8px 14px; cursor:pointer;
}
.authbox button.secondary{background:var(--paper-dark); color:var(--ink); border-color:var(--line);}
.authbox button:hover{opacity:0.9;}

header.hero{
  background:var(--card); border:2px solid var(--ink); border-radius:2px;
  margin:0 16px; padding:32px; box-shadow:6px 6px 0 rgba(0,0,0,0.12); position:relative;
}
h1{font-family:'Special Elite', monospace; font-size:clamp(26px,5vw,38px); margin:6px 0 4px;}
.subtitle{font-family:'Kalam', cursive; font-size:19px; color:var(--stamp-red-dark); margin:0 0 8px;}
p{line-height:1.7; font-size:15px;}

.catalog-grid{
  display:grid; grid-template-columns:repeat(auto-fill, minmax(240px,1fr));
  gap:18px; margin:24px 16px 0;
}
.case-card{
  background:var(--card); border:2px solid var(--ink); border-radius:3px;
  padding:18px; box-shadow:5px 5px 0 rgba(0,0,0,0.10); text-decoration:none;
  display:flex; flex-direction:column; gap:8px; position:relative; transition:transform 0.1s;
}
.case-card:hover{transform:translate(-2px,-2px); box-shadow:7px 7px 0 rgba(0,0,0,0.14);}
.case-card .fileno{font-size:11px; color:var(--ink-soft);}
.case-card h3{font-family:'Special Elite', monospace; font-size:16px; margin:2px 0;}
.badges{display:flex; gap:6px; flex-wrap:wrap;}
.badge{font-family:'Special Elite', monospace; font-size:10px; letter-spacing:0.5px; padding:3px 8px; border-radius:3px;}
.badge.mudah{background:#dcecd6; color:var(--ok-green); border:1px solid var(--ok-green);}
.badge.sederhana{background:#f3e6c4; color:var(--gold); border:1px solid var(--gold);}
.badge.sukar{background:#f0d8d3; color:var(--stamp-red-dark); border:1px solid var(--stamp-red-dark);}
.badge.percuma{background:var(--olive); color:#f2ead0;}
.badge.berbayar{background:var(--stamp-red); color:#f7ead9;}
.badge.selesai{background:var(--ok-green); color:#fff;}
.case-card .desc{font-size:12.5px; color:var(--ink-soft); flex:1;}

.cta-box{
  margin:28px 16px 0; background:var(--stamp-red); color:#f7ead9;
  border:2px solid var(--stamp-red-dark); border-radius:3px; padding:22px 26px;
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px;
}
.cta-box b{font-family:'Special Elite', monospace; font-size:15px;}
.cta-box a.btn{
  background:#f7ead9; color:var(--stamp-red-dark); font-family:'Special Elite', monospace;
  font-size:13px; padding:10px 18px; border-radius:3px; text-decoration:none; white-space:nowrap;
}

section.panel{
  background:var(--card); border:2px solid var(--ink); border-radius:2px;
  margin:20px 16px 0; padding:26px 30px; box-shadow:6px 6px 0 rgba(0,0,0,0.10);
}
h2{font-family:'Special Elite', monospace; font-size:19px; margin:0 0 14px; border-bottom:2px dashed var(--line); padding-bottom:10px;}
h2 .no{color:var(--stamp-red-dark); margin-right:6px;}
.brief-note{font-family:'Kalam', cursive; font-size:17px; color:var(--ink-soft); line-height:1.6;}
.stamp{
  position:absolute; top:22px; right:26px; border:4px solid var(--stamp-red); color:var(--stamp-red);
  font-family:'Special Elite', monospace; font-size:18px; letter-spacing:3px; padding:6px 14px;
  transform:rotate(9deg); border-radius:6px; opacity:0.85; pointer-events:none; user-select:none;
}
.tip-box{background:var(--paper-dark); border-left:4px solid var(--gold); padding:10px 14px; font-size:13px; color:var(--ink-soft); margin-bottom:16px;}

.evidence-grid{display:grid; grid-template-columns:repeat(auto-fit, minmax(130px,1fr)); gap:12px; margin-top:6px;}
.ev-card{background:var(--paper-dark); border:1.5px solid var(--ink); border-radius:4px; padding:11px 8px; text-align:center; position:relative;}
.ev-card .icon{width:42px; height:42px; margin:0 auto 8px; border-radius:50%; background:var(--olive); color:#f2ead0; display:flex; align-items:center; justify-content:center; font-family:'Special Elite', monospace; font-size:16px; border:2px solid var(--ink);}
.ev-card .name{font-family:'Special Elite', monospace; font-size:12.5px; margin-bottom:4px;}
.ev-card .role{font-size:10.5px; color:var(--ink-soft); line-height:1.3;}
.pin{position:absolute; top:-8px; left:50%; transform:translateX(-50%); width:12px; height:12px; border-radius:50%; background:var(--stamp-red); border:1px solid var(--stamp-red-dark);}

.clue-list{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:10px;}
.clue-list li{background:var(--paper-dark); border-left:4px solid var(--olive); padding:12px 14px; font-size:14px; line-height:1.55;}
.clue-list li b{font-family:'Special Elite', monospace; font-size:12px; color:var(--stamp-red-dark); margin-right:8px;}

.grids-wrap{display:flex; gap:22px; flex-wrap:wrap;}
.grid-block{flex:1; min-width:270px;}
.grid-title{font-family:'Special Elite', monospace; font-size:13px; margin-bottom:8px; color:var(--ink-soft); letter-spacing:1px;}
table.lgrid{border-collapse:collapse; width:100%; font-size:11px; table-layout:fixed;}
table.lgrid th, table.lgrid td{border:1px solid var(--ink); text-align:center; padding:2px; cursor:pointer;}
table.lgrid th{background:var(--olive); color:#f2ead0; font-family:'Special Elite', monospace; font-size:9px; padding:5px 1px; cursor:default;}
table.lgrid td.rowlabel{background:var(--paper-dark); font-family:'Special Elite', monospace; font-size:9.5px; padding:5px 3px; text-align:left; cursor:default;}
.cell{width:100%; height:38px; min-height:38px; cursor:pointer; background:var(--card); border:1.5px dashed var(--line); border-radius:3px; display:flex; align-items:center; justify-content:center; font-size:17px; font-weight:bold; user-select:none; -webkit-tap-highlight-color:rgba(74,93,58,0.25); touch-action:manipulation;}
.cell:hover{background:#efe6c8;}
.cell.x{color:var(--bad-red); border-style:solid;}
.cell.o{color:var(--ok-green); background:#e2ecda; border-style:solid; border-color:var(--ok-green);}

.accuse-form{display:flex; gap:14px; flex-wrap:wrap; align-items:flex-end; margin-top:6px;}
.field{display:flex; flex-direction:column; gap:6px; flex:1; min-width:150px;}
.field label{font-family:'Special Elite', monospace; font-size:11px; color:var(--ink-soft); letter-spacing:1px;}
select{font-family:'Courier Prime', monospace; font-size:14px; padding:9px 8px; border:1.5px solid var(--ink); border-radius:3px; background:var(--card); color:var(--ink);}
button.submit-btn{font-family:'Special Elite', monospace; font-size:14px; letter-spacing:1px; background:var(--stamp-red); color:#f7f0d9; border:2px solid var(--stamp-red-dark); border-radius:3px; padding:11px 22px; cursor:pointer;}
button.submit-btn:hover{background:var(--stamp-red-dark);}
#feedback{margin-top:16px; font-family:'Kalam', cursive; font-size:17px; min-height:24px;}
#feedback.wrong{color:var(--bad-red);}
.shake{animation:shake 0.4s;}
@keyframes shake{10%,90%{transform:translateX(-2px);}20%,80%{transform:translateX(4px);}30%,50%,70%{transform:translateX(-6px);}40%,60%{transform:translateX(6px);}}
#solution{display:none; margin-top:18px; padding-top:18px; border-top:2px dashed var(--line);}
#solution.show{display:block;}
.solved-stamp{display:inline-block; border:4px solid var(--ok-green); color:var(--ok-green); font-family:'Special Elite', monospace; font-size:22px; letter-spacing:3px; padding:8px 18px; transform:rotate(-6deg); border-radius:6px; margin-bottom:14px;}

.locked-box{text-align:center; padding:40px 20px;}
.locked-box .lock-icon{font-size:40px; margin-bottom:12px;}

footer{text-align:center; font-size:11px; color:var(--ink-soft); margin:26px 16px 0;}

@media (max-width:640px){
  header.hero{padding:24px 18px 20px;}
  section.panel{padding:20px 18px;}
  .stamp{font-size:13px; top:14px; right:14px; padding:4px 8px; border-width:3px;}
  .grids-wrap{flex-direction:column;}
  .topbar{flex-direction:column; gap:10px; align-items:flex-start;}
}