:root{
  --bg:        #0a0c0a;
  --panel:     #101310;
  --line:      #232823;
  --amber:     #ffb000;
  --amber-dim: #8a5f00;
  --cyan:      #57d9c8;
  --text:      #cdd6cd;
  --text-dim:  #6d786d;
  --danger:    #ff5f56;
}

*{box-sizing:border-box;}
::selection{background:var(--amber);color:#0a0c0a;}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'VT323', monospace;
  font-size:20px;
  line-height:1.5;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* scanline / CRT overlay */
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:50;
  background:repeating-linear-gradient(
    to bottom,
    rgba(0,0,0,0) 0px,
    rgba(0,0,0,0) 2px,
    rgba(0,0,0,0.18) 3px,
    rgba(0,0,0,0.18) 4px
  );
  mix-blend-mode:multiply;
  opacity:.5;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:51;
  background:radial-gradient(ellipse at center, rgba(0,0,0,0) 60%, rgba(0,0,0,0.55) 100%);
}

.pixel{
  font-family:'Press Start 2P', monospace;
}

a{color:var(--cyan); text-decoration:none;}
a:hover{color:var(--amber);}
a:focus-visible, button:focus-visible, input:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:2px;
}

.wrap{
  max-width:920px;
  margin:0 auto;
  padding:48px 20px 100px;
}

/* ---------- HEADER ---------- */
header{
  border:2px solid var(--line);
  background:var(--panel);
  padding:28px 24px;
  margin-bottom:28px;
  position:relative;
}
.term-bar{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:20px;
  color:var(--text-dim);
  font-size:15px;
}
.dot{width:10px;height:10px;border-radius:50%;display:inline-block;}
.dot.r{background:#ff5f56;}
.dot.y{background:#ffbd2e;}
.dot.g{background:#27c93f;}
.term-title{margin-left:8px;}

.logo{
  font-size:34px;
  letter-spacing:2px;
  color:var(--amber);
  text-shadow:0 0 6px rgba(255,176,0,.45);
  margin:0 0 6px;
}
.logo span{color:var(--cyan);}
.prompt-line{
  color:var(--text);
  font-size:22px;
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  align-items:baseline;
}
.prompt-line .who{color:var(--cyan);}
.prompt-line .path{color:var(--amber-dim);}
.cursor{
  display:inline-block;
  width:11px;height:20px;
  background:var(--amber);
  animation:blink 1s steps(1) infinite;
  vertical-align:-3px;
}
@keyframes blink{50%{opacity:0;}}

.stats{
  display:flex;
  gap:24px;
  margin-top:20px;
  flex-wrap:wrap;
  font-size:16px;
  color:var(--text-dim);
}
.stats b{color:var(--cyan); font-weight:normal;}

/* ---------- FILTER BAR ---------- */
.filterbar{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:28px;
}
.filterbar button{
  font-family:'VT323', monospace;
  font-size:17px;
  background:var(--panel);
  color:var(--text-dim);
  border:2px solid var(--line);
  padding:8px 14px;
  cursor:pointer;
  letter-spacing:1px;
}
.filterbar button:hover{color:var(--amber); border-color:var(--amber-dim);}
.filterbar button.active{
  color:#0a0c0a;
  background:var(--amber);
  border-color:var(--amber);
}

.search{
  margin-bottom:28px;
}
.search input{
  width:100%;
  font-family:'VT323', monospace;
  font-size:20px;
  background:var(--panel);
  border:2px solid var(--line);
  color:var(--text);
  padding:12px 14px;
}
.search input::placeholder{color:var(--text-dim);}
.search input:focus{border-color:var(--amber-dim); outline:none;}

/* ---------- PLATFORM BADGE ---------- */
.platform{
  font-size:13px;
  font-family:'Press Start 2P', monospace;
  padding:4px 8px;
  border:1px solid var(--line);
  letter-spacing:0;
}
.platform.htb{color:#9fef00; border-color:#9fef00;}
.platform.thm{color:#ff4655; border-color:#ff4655;}
.platform.picoctf{color:#57d9c8; border-color:#57d9c8;}

/* ---------- CARDS ---------- */
.card{
  border:2px solid var(--line);
  background:var(--panel);
  padding:18px 20px;
  margin-bottom:14px;
  transition:border-color .15s ease, transform .1s ease;
  position:relative;
}
.card:hover{
  border-color:var(--amber-dim);
  transform:translateX(2px);
}
.card-top{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap:12px;
  flex-wrap:wrap;
}
.card-title{
  font-size:23px;
  color:var(--text);
}
.card a.card-title{color:var(--text);}
.card a.card-title:hover{color:var(--amber);}
.card-meta{
  font-size:15px;
  color:var(--text-dim);
  white-space:nowrap;
}
.card-desc{
  color:var(--text-dim);
  font-size:18px;
  margin-top:6px;
}
.tags{
  margin-top:10px;
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.tag{
  font-size:13px;
  font-family:'Press Start 2P', monospace;
  padding:4px 8px;
  border:1px solid var(--line);
  color:var(--text-dim);
  letter-spacing:0;
}
.diff{
  font-size:13px;
  font-family:'Press Start 2P', monospace;
  padding:4px 8px;
  border:1px solid var(--line);
}
.diff.easy{color:#27c93f; border-color:#27c93f;}
.diff.med{color:#ffbd2e; border-color:#ffbd2e;}
.diff.hard{color:#ff5f56; border-color:#ff5f56;}

/* ---------- FOOTER ---------- */
footer{
  margin-top:60px;
  padding-top:20px;
  border-top:2px solid var(--line);
  color:var(--text-dim);
  font-size:16px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
}
footer a{margin-right:16px;}

.hidden{display:none !important;}

/* ---------- WRITEUP ARTICLE ---------- */
.back-link{
  display:inline-block;
  margin-bottom:22px;
  font-size:18px;
  color:var(--cyan);
}
.back-link:hover{color:var(--amber);}

.article-head{
  border:2px solid var(--line);
  background:var(--panel);
  padding:24px;
  margin-bottom:32px;
}
.article-head h1{
  font-family:'Press Start 2P', monospace;
  font-size:20px;
  color:var(--amber);
  line-height:1.6;
  margin:0 0 14px;
  text-shadow:0 0 6px rgba(255,176,0,.35);
}
.article-meta{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
}

.article-body{
  font-size:20px;
}
.article-body h2{
  font-family:'Press Start 2P', monospace;
  font-size:15px;
  color:var(--cyan);
  margin:42px 0 16px;
  padding-bottom:10px;
  border-bottom:2px solid var(--line);
}
.article-body p{
  margin:0 0 18px;
  color:var(--text);
}
.article-body figure{
  margin:22px 0 26px;
}
.article-body img{
  width:100%;
  display:block;
  border:2px solid var(--line);
  background:#000;
}
.article-body figcaption{
  font-size:15px;
  color:var(--text-dim);
  margin-top:8px;
  padding-left:2px;
  border-left:3px solid var(--amber-dim);
  padding-left:10px;
}
.article-body code, .article-body .inline-code{
  font-family:'VT323', monospace;
  background:#000;
  border:1px solid var(--line);
  padding:1px 7px;
  color:var(--amber);
  font-size:19px;
}
.article-body pre{
  background:#000;
  border:2px solid var(--line);
  padding:14px 16px;
  overflow-x:auto;
  margin:0 0 20px;
}
.article-body pre code{
  border:none;
  padding:0;
  background:none;
  color:var(--cyan);
}

.flag-box{
  border:2px solid var(--amber);
  background:rgba(255,176,0,0.06);
  padding:18px 20px;
  margin:26px 0;
  font-family:'Press Start 2P', monospace;
  font-size:14px;
  color:var(--amber);
  word-break:break-all;
  line-height:1.8;
}
.flag-box .flag-label{
  display:block;
  color:var(--text-dim);
  font-size:12px;
  margin-bottom:10px;
}

@media (max-width:520px){
  .logo{font-size:26px;}
  body{font-size:18px;}
  .article-head h1{font-size:16px;}
}

@media (prefers-reduced-motion: reduce){
  .cursor{animation:none; opacity:1;}
}