/* ==========================================================================
   CatPwn -- green-on-black terminal theme
   ========================================================================== */

:root {
  --bg:          #04070a;
  --bg-elev:     #0a1017;
  --bg-panel:    #070d12;
  --bg-inset:    #030507;

  --green:       #33ff88;
  --green-bright:#68ffab;
  --green-dim:   #1f9d5b;
  --green-deep:  #0e5c37;

  --text:        #c9ffe2;
  --muted:       #74ac92;
  --faint:       #3f6c58;

  --border:      rgba(51, 255, 136, 0.16);
  --border-soft: rgba(51, 255, 136, 0.09);
  --border-lit:  rgba(51, 255, 136, 0.42);

  --red:    #ff5c6a;
  --amber:  #ffcf5c;
  --cyan:   #4fe3d0;
  --violet: #b490ff;

  --glow:      0 0 10px rgba(51, 255, 136, 0.35);
  --glow-soft: 0 0 22px rgba(51, 255, 136, 0.12);

  --head: 'Share Tech Mono', ui-monospace, 'Menlo', monospace;
  --body: 'IBM Plex Mono', ui-monospace, 'Menlo', monospace;

  --maxw: 1080px;
  --radius: 6px;
}

/* ---- reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(1200px 700px at 15% -10%, rgba(51,255,136,0.06), transparent 60%),
    radial-gradient(900px 600px at 100% 0%, rgba(51,255,136,0.04), transparent 55%),
    linear-gradient(rgba(51,255,136,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(51,255,136,0.028) 1px, transparent 1px);
  background-size: auto, auto, 44px 44px, 44px 44px;
  background-attachment: fixed;
}

/* faint CRT scanlines over everything */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0,0,0,0) 0,
    rgba(0,0,0,0) 2px,
    rgba(0,0,0,0.16) 3px,
    rgba(0,0,0,0) 4px
  );
  mix-blend-mode: multiply;
  opacity: 0.5;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--green); text-decoration: none; }
a:hover { color: var(--green-bright); text-shadow: var(--glow); }

::selection { background: var(--green); color: #02150b; }

:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; border-radius: 3px; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 10000;
  background: var(--green); color: #02150b; padding: 8px 14px; font-family: var(--head);
}
.skip-link:focus { left: 8px; top: 8px; }

/* ---- layout ---- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
main { min-height: 62vh; }
.section { padding: 64px 0; }
.section + .section { padding-top: 8px; }

.eyebrow {
  font-family: var(--head);
  color: var(--green-dim);
  letter-spacing: 3px;
  text-transform: uppercase;
  font-size: 0.82rem;
  margin: 0 0 10px;
}
.eyebrow::before { content: "// "; color: var(--faint); }

h1, h2, h3, h4, h5, h6 { font-family: var(--head); color: var(--green); font-weight: 400; line-height: 1.2; letter-spacing: 0.5px; }
h1 { font-size: clamp(2.1rem, 6vw, 3.4rem); text-shadow: var(--glow-soft); margin: 0 0 0.4em; }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); margin: 0 0 0.6em; }
h3 { font-size: 1.2rem; color: var(--green-bright); }
p { margin: 0 0 1.1em; }
.lead { font-size: 1.1rem; color: var(--text); }
.muted { color: var(--muted); }
hr { border: 0; border-top: 1px solid var(--border); margin: 2rem 0; }

/* blinking cursor */
.cursor { display: inline-block; width: 0.6ch; height: 1.05em; margin-left: 2px; background: var(--green); vertical-align: -2px; animation: blink 1.05s step-end infinite; box-shadow: var(--glow); }
@keyframes blink { 50% { opacity: 0; } }

/* ==========================================================================
   Header / nav
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(4, 7, 10, 0.82);
  backdrop-filter: blur(9px);
  -webkit-backdrop-filter: blur(9px);
  border-bottom: 1px solid var(--border);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--head); font-size: 1.28rem; color: var(--green); letter-spacing: 1px; }
.brand:hover { text-shadow: var(--glow); }
.brand img { width: 34px; height: 34px; filter: drop-shadow(0 0 6px rgba(51,255,136,0.4)); }
.brand b { font-weight: 400; }
.brand .brand-caret { color: var(--faint); }

.main-nav ul { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.main-nav a {
  display: block; padding: 8px 13px; font-family: var(--head); font-size: 0.98rem;
  color: var(--muted); letter-spacing: 0.5px; border: 1px solid transparent; border-radius: 4px;
  transition: color .15s, border-color .15s, background .15s;
}
.main-nav a:hover { color: var(--green); background: rgba(51,255,136,0.06); text-shadow: none; }
.main-nav a[aria-current="page"] { color: var(--green); border-color: var(--border-lit); background: rgba(51,255,136,0.07); }
.main-nav a[aria-current="page"]::before { content: "> "; color: var(--green-dim); }

.nav-toggle { display: none; background: transparent; border: 1px solid var(--border); color: var(--green); font-family: var(--head); font-size: 1rem; padding: 6px 12px; border-radius: 4px; cursor: pointer; }
.nav-toggle:hover { background: rgba(51,255,136,0.08); }

@media (max-width: 800px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute; top: 62px; left: 0; right: 0;
    background: rgba(4,7,10,0.97); border-bottom: 1px solid var(--border);
    max-height: 0; overflow: hidden; transition: max-height .28s ease;
  }
  .main-nav.open { max-height: 420px; }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 0; padding: 8px; }
  .main-nav a { padding: 12px 14px; }
}

/* ==========================================================================
   Terminal window component
   ========================================================================== */
.terminal {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--glow-soft), inset 0 0 60px rgba(0,0,0,0.4);
  overflow: hidden;
}
.terminal-bar { display: flex; align-items: center; gap: 8px; padding: 9px 14px; background: var(--bg-elev); border-bottom: 1px solid var(--border); }
.terminal-bar .dot { width: 11px; height: 11px; border-radius: 50%; opacity: 0.9; }
.dot.r { background: var(--red); } .dot.y { background: var(--amber); } .dot.g { background: var(--green); }
.terminal-bar .title { margin-left: 8px; font-family: var(--head); color: var(--muted); font-size: 0.85rem; letter-spacing: 1px; }
.terminal-body { padding: 22px 22px; }
@media (min-width: 620px) { .terminal-body { padding: 30px 30px; } }

.prompt { font-family: var(--head); color: var(--text); margin: 0 0 6px; }
.prompt .u { color: var(--green); } .prompt .h { color: var(--cyan); } .prompt .p { color: var(--muted); } .prompt .s { color: var(--green-dim); }
.output { color: var(--muted); margin: 0 0 14px; }

/* ==========================================================================
   Buttons / badges / tags
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--head); font-size: 0.98rem; letter-spacing: 1px;
  padding: 11px 20px; border-radius: 4px; cursor: pointer;
  color: var(--green); background: rgba(51,255,136,0.06); border: 1px solid var(--border-lit);
  transition: background .15s, box-shadow .15s, transform .05s;
}
.btn:hover { background: rgba(51,255,136,0.14); box-shadow: var(--glow); color: var(--green-bright); }
.btn:active { transform: translateY(1px); }
.btn-solid { background: var(--green); color: #02150b; border-color: var(--green); }
.btn-solid:hover { background: var(--green-bright); color: #02150b; }
.btn-ghost { background: transparent; color: var(--muted); border-color: var(--border); }
.btn-ghost:hover { color: var(--green); border-color: var(--border-lit); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }

.badge {
  display: inline-block; font-family: var(--head); font-size: 0.72rem; letter-spacing: 1px;
  text-transform: uppercase; padding: 3px 9px; border-radius: 3px;
  border: 1px solid var(--border); color: var(--muted); background: rgba(255,255,255,0.02);
}
/* categories */
.badge.pwn        { color: var(--red);    border-color: rgba(255,92,106,0.4); }
.badge.web        { color: var(--green);  border-color: var(--border-lit); }
.badge.crypto     { color: var(--cyan);   border-color: rgba(79,227,208,0.4); }
.badge.rev,
.badge.reversing  { color: var(--violet); border-color: rgba(180,144,255,0.4); }
.badge.forensics  { color: var(--amber);  border-color: rgba(255,207,92,0.4); }
.badge.hardware   { color: #ff9d5c;       border-color: rgba(255,157,92,0.4); }
.badge.mobile     { color: #5cc8ff;       border-color: rgba(92,200,255,0.4); }
.badge.blockchain { color: #ffd35c;       border-color: rgba(255,211,92,0.4); }
.badge.osint      { color: #7ce0b0;       border-color: rgba(124,224,176,0.4); }
.badge.ai         { color: #ff7cc3;       border-color: rgba(255,124,195,0.4); }
.badge.cloud      { color: #7cc3ff;       border-color: rgba(124,195,255,0.4); }
.badge.ics        { color: #ffb05c;       border-color: rgba(255,176,92,0.4); }
.badge.coding     { color: var(--green-bright); border-color: var(--border-lit); }
.badge.misc       { color: var(--muted);  border-color: var(--border); }
/* difficulty */
.badge.very-easy  { color: var(--green-bright); border-color: var(--border-lit); }
.badge.easy       { color: var(--green);  border-color: var(--border-lit); }
.badge.medium     { color: var(--amber);  border-color: rgba(255,207,92,0.4); }
.badge.hard       { color: var(--red);    border-color: rgba(255,92,106,0.4); }
.badge.insane     { color: var(--violet); border-color: rgba(180,144,255,0.5); }

.tags { display: flex; flex-wrap: wrap; gap: 8px; }

/* ==========================================================================
   Grids / cards
   ========================================================================== */
.grid { display: grid; gap: 20px; }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 860px) { .cols-3, .cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; transition: border-color .18s, transform .18s, box-shadow .18s;
}
.card:hover { border-color: var(--border-lit); box-shadow: var(--glow-soft); transform: translateY(-3px); }
.card h3 { margin: 0 0 8px; }
.card .icon { font-family: var(--head); color: var(--green-dim); font-size: 1.4rem; margin-bottom: 6px; }

/* stat row */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 640px) { .stats { grid-template-columns: 1fr; } }
.stat { text-align: center; padding: 20px 10px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-panel); }
.stat .n { font-family: var(--head); font-size: 2.1rem; color: var(--green); text-shadow: var(--glow-soft); }
.stat .l { color: var(--muted); font-size: 0.85rem; letter-spacing: 1px; text-transform: uppercase; }

/* team members */
.member { text-align: center; }
.member img { width: 96px; height: 96px; border-radius: 50%; margin: 0 auto 12px; border: 1px solid var(--border-lit); background: var(--bg-inset); filter: grayscale(0.3) brightness(0.95); }
.member .role { color: var(--green-dim); font-family: var(--head); font-size: 0.82rem; letter-spacing: 1px; text-transform: uppercase; }
.member .handle { color: var(--muted); font-size: 0.9rem; margin: 0 0 12px; }
.member-links { display: flex; justify-content: center; gap: 14px; font-family: var(--head); font-size: 0.85rem; letter-spacing: 0.5px; }
.member-links a { color: var(--green-dim); }
.member-links a:hover { color: var(--green-bright); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { position: relative; padding: 68px 0 40px; }
#matrix { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: 0.22; pointer-events: none; }
.hero .container { position: relative; z-index: 1; }
.hero .terminal { max-width: 760px; }

/* ==========================================================================
   Write-up list
   ========================================================================== */
.wu-toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 22px; }
.wu-filter {
  font-family: var(--head); font-size: 0.85rem; letter-spacing: 0.5px; color: var(--muted);
  padding: 7px 13px; border: 1px solid var(--border); border-radius: 4px; background: transparent;
  cursor: pointer; text-transform: uppercase;
}
.wu-filter:hover { color: var(--green); border-color: var(--border-lit); }
.wu-filter.active { color: var(--green); border-color: var(--border-lit); background: rgba(51,255,136,0.08); }

.wu-list { display: flex; flex-direction: column; gap: 12px; margin: 0; padding: 0; list-style: none; }
.wu-item {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 18px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-panel); color: inherit;
  transition: border-color .16s, transform .16s, box-shadow .16s, background .16s;
}
.wu-item:hover { border-color: var(--border-lit); background: rgba(51,255,136,0.04); transform: translateX(6px); box-shadow: var(--glow-soft); color: inherit; text-shadow: none; }
.wu-item:hover .wu-arrow { color: var(--green-bright); transform: translateX(3px); }
.wu-lock { font-size: 1.05rem; color: var(--green-dim); flex-shrink: 0; }
.wu-main { flex: 1; min-width: 0; }
.wu-title { font-family: var(--head); font-size: 1.12rem; color: var(--green); letter-spacing: 0.5px; margin: 0 0 4px; overflow: hidden; text-overflow: ellipsis; }
.wu-meta { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; color: var(--muted); font-size: 0.82rem; }
.wu-meta .sep { color: var(--faint); }
.wu-arrow { font-family: var(--head); font-size: 1.5rem; color: var(--green-dim); flex-shrink: 0; transition: transform .16s, color .16s; }
.wu-empty, .wu-loading { color: var(--muted); font-family: var(--head); padding: 20px; border: 1px dashed var(--border); border-radius: var(--radius); text-align: center; }

/* ==========================================================================
   Write-up viewer + decryption gate
   ========================================================================== */
.wv-header { margin-bottom: 26px; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.wv-header h1 { margin: 6px 0 12px; }
.wv-meta { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; color: var(--muted); font-size: 0.86rem; }

.sealed { max-width: 640px; margin: 0 auto; text-align: center; }
.sealed .lock-icon { font-size: 3rem; line-height: 1; margin-bottom: 8px; filter: drop-shadow(var(--glow)); }
.flag-form { display: flex; gap: 10px; margin: 22px 0 4px; }
@media (max-width: 480px) { .flag-form { flex-direction: column; } }
.flag-input {
  flex: 1; font-family: var(--body); font-size: 1rem; color: var(--green);
  background: var(--bg-inset); border: 1px solid var(--border-lit); border-radius: 4px;
  padding: 13px 15px; caret-color: var(--green);
}
.flag-input::placeholder { color: var(--faint); }
.flag-input:focus { outline: none; border-color: var(--green); box-shadow: var(--glow); }
.decrypt-status { min-height: 1.4em; font-family: var(--head); letter-spacing: 0.5px; margin-top: 12px; }
.decrypt-status.err { color: var(--red); }
.decrypt-status.ok  { color: var(--green); }
.decrypt-status.busy { color: var(--amber); }
.hint { color: var(--faint); font-size: 0.82rem; margin-top: 18px; }

/* ==========================================================================
   Rendered markdown body
   ========================================================================== */
.md-body { color: var(--text); animation: fadeIn .4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.md-body h1 { font-size: 1.9rem; margin: 1.4em 0 0.5em; }
.md-body h2 { font-size: 1.45rem; margin: 1.5em 0 0.5em; padding-bottom: 6px; border-bottom: 1px solid var(--border-soft); }
.md-body h3 { font-size: 1.15rem; margin: 1.3em 0 0.4em; }
.md-body h1:first-child, .md-body h2:first-child { margin-top: 0; }
.md-body a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--green-deep); }
.md-body ul, .md-body ol { padding-left: 1.4em; margin: 0 0 1.1em; }
.md-body li { margin: 0.3em 0; }
.md-body li::marker { color: var(--green-dim); }
.md-body strong { color: var(--green-bright); }
.md-body em { color: var(--cyan); font-style: normal; }
.md-body blockquote {
  margin: 1.1em 0; padding: 6px 18px; border-left: 3px solid var(--green-dim);
  background: rgba(51,255,136,0.04); color: var(--muted);
}
.md-body blockquote p:last-child { margin-bottom: 0; }
.md-body code {
  font-family: var(--body); font-size: 0.9em; color: var(--green-bright);
  background: rgba(51,255,136,0.09); border: 1px solid var(--border-soft);
  padding: 1px 6px; border-radius: 3px;
}
.md-body pre.code {
  position: relative; margin: 1.2em 0; padding: 16px 18px; overflow-x: auto;
  background: var(--bg-inset); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: inset 0 0 40px rgba(0,0,0,0.4);
}
.md-body pre.code code { background: none; border: 0; padding: 0; color: var(--text); font-size: 0.88rem; line-height: 1.6; }
.md-body pre.code[data-lang]::before {
  content: attr(data-lang); position: absolute; top: 0; right: 0;
  font-family: var(--head); font-size: 0.68rem; letter-spacing: 1px; text-transform: uppercase;
  color: var(--green-dim); background: var(--bg-elev); padding: 2px 9px; border-bottom-left-radius: 4px; border: 1px solid var(--border); border-top: 0; border-right: 0;
}
.md-body img { border: 1px solid var(--border); border-radius: var(--radius); margin: 1.2em 0; }
.md-body .table-wrap { overflow-x: auto; margin: 1.2em 0; }
.md-body table { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
.md-body th, .md-body td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.md-body th { font-family: var(--head); color: var(--green); background: rgba(51,255,136,0.05); font-weight: 400; letter-spacing: 0.5px; }
.md-body hr { margin: 2em 0; }

/* ==========================================================================
   Contact form
   ========================================================================== */
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--head); color: var(--green-dim); letter-spacing: 1px; text-transform: uppercase; font-size: 0.8rem; margin-bottom: 7px; }
.field label::before { content: "$ "; color: var(--faint); }
.field input, .field textarea, .field select {
  width: 100%; font-family: var(--body); font-size: 0.98rem; color: var(--green);
  background: var(--bg-inset); border: 1px solid var(--border); border-radius: 4px; padding: 12px 14px;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--green); box-shadow: var(--glow); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { border-top: 1px solid var(--border); margin-top: 60px; padding: 40px 0 30px; color: var(--muted); font-size: 0.88rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 28px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 460px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { font-family: var(--head); color: var(--green); font-size: 0.9rem; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 12px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 6px 0; }
.site-footer .foot-brand { display: flex; align-items: center; gap: 10px; font-family: var(--head); color: var(--green); font-size: 1.15rem; margin-bottom: 10px; }
.site-footer .foot-brand img { width: 30px; height: 30px; }
.footer-bottom { margin-top: 30px; padding-top: 18px; border-top: 1px solid var(--border-soft); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; color: var(--faint); font-size: 0.8rem; }
.footer-bottom .mono { font-family: var(--head); }

/* ==========================================================================
   Motion preferences
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  #matrix { display: none; }
  .cursor { opacity: 1; }
}