/* ─── RESET ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ─── DARK THEME (default) ───────────────────────────── */
:root {
  --bg:          #080c10;
  --bg2:         #0d1318;
  --bg3:         #111820;
  --bg4:         #162030;
  --border:      #1e2e3d;
  --green:       #00ff88;
  --green-dim:   #00cc6a;
  --cyan:        #00d4ff;
  --red:         #ff3b5c;
  --yellow:      #ffd166;
  --purple:      #b06cff;
  --blue:        #4d9fff;
  --text:        #c5d8e8;
  --text-dim:    #5a7a90;
  --text-faint:  #2e4a5e;
  --glow-g:      0 0 18px #00ff8866;
  --glow-c:      0 0 18px #00d4ff66;
  --glow-r:      0 0 18px #ff3b5c66;
  --card-hover:  #0f1e2c;
  --shadow:      0 4px 24px rgba(0,0,0,.4);
}

/* ─── LIGHT THEME ─────────────────────────────────────── */
[data-theme="light"] {
  --bg:          #f4f6f9;
  --bg2:         #ffffff;
  --bg3:         #eef1f5;
  --bg4:         #e4e9f0;
  --border:      #d0d9e4;
  --green:       #00994d;
  --green-dim:   #007a3d;
  --cyan:        #0099bb;
  --red:         #d4203c;
  --yellow:      #b8860b;
  --purple:      #7c3aed;
  --blue:        #2979d4;
  --text:        #1a2a3a;
  --text-dim:    #4a6a80;
  --text-faint:  #9ab0c0;
  --glow-g:      none;
  --glow-c:      none;
  --glow-r:      none;
  --card-hover:  #edf2f7;
  --shadow:      0 4px 24px rgba(0,0,0,.08);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.7;
  font-size: 1.15rem;
  overflow-x: hidden;
  transition: background .25s, color .25s;
}

/* scanlines — dark only */
body::after {
  content: '';
  position: fixed; inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,.06) 2px, rgba(0,0,0,.06) 4px
  );
  pointer-events: none;
  z-index: 9999;
  transition: opacity .25s;
}
[data-theme="light"] body::after { opacity: 0; }

/* noise */
body::before {
  content: '';
  position: fixed; inset: 0;
  opacity: .025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px;
  pointer-events: none;
  z-index: 9998;
  transition: opacity .25s;
}
[data-theme="light"] body::before { opacity: 0; }

/* ─── LAYOUT ──────────────────────────────────────────── */
.page-wrap {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 28px 120px;
}

/* ─── TOP NAV ─────────────────────────────────────────── */
.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 60px;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
  transition: background .25s, border-color .25s;
}

.topnav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.55rem;
  color: var(--green);
  letter-spacing: .05em;
  text-shadow: var(--glow-g);
  text-decoration: none;
}

.topnav-right {
  display: flex;
  align-items: center;
  gap: 28px;
}

.topnav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.topnav-links a {
  font-size: 1rem;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: .06em;
  transition: color .2s;
  font-weight: 500;
}
.topnav-links a:hover,
.topnav-links a.active { color: var(--cyan); }

/* ─── THEME TOGGLE ────────────────────────────────────── */
.theme-toggle {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  width: 52px; height: 28px;
  cursor: pointer;
  position: relative;
  transition: background .25s, border-color .25s;
  flex-shrink: 0;
  overflow: hidden;
}
.theme-toggle::after {
  content: '';
  position: absolute;
  top: 4px; left: 4px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: transform .25s, background .25s;
  z-index: 2;
}
[data-theme="light"] .theme-toggle::after {
  transform: translateX(24px);
  background: var(--yellow);
}
.toggle-moon { position: absolute; top: 50%; right: 7px; transform: translateY(-50%); font-size: .65rem; pointer-events: none; z-index: 1; }
.toggle-sun  { position: absolute; top: 50%; left: 7px; transform: translateY(-50%); font-size: .65rem; pointer-events: none; z-index: 1; display: none; }
[data-theme="light"] .toggle-moon { display: none; }
[data-theme="light"] .toggle-sun  { display: block; }

/* ─── ANIMATIONS ──────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes blink {
  0%, 100% { opacity: 1; } 50% { opacity: 0; }
}
@keyframes pulse {
  0%, 100% { opacity: .6; } 50% { opacity: 1; }
}

/* ─── BADGE ───────────────────────────────────────────── */
.badge {
  font-size: .78rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: .12em;
  padding: 4px 11px;
  border-radius: 2px;
  text-transform: uppercase;
  white-space: nowrap;
}
.badge-pwn      { background: #ff3b5c18; color: var(--red);      border: 1px solid #ff3b5c44; }
.badge-web      { background: #00d4ff18; color: var(--cyan);     border: 1px solid #00d4ff44; }
.badge-crypto   { background: #ffd16618; color: var(--yellow);   border: 1px solid #ffd16644; }
.badge-rev      { background: #b06cff18; color: var(--purple);   border: 1px solid #b06cff44; }
.badge-misc     { background: #88888818; color: var(--text-dim); border: 1px solid #88888844; }
.badge-forensics  { background: #4d9fff18; color: var(--blue);    border: 1px solid #4d9fff44; }
.badge-hackthebox { background: #00ff8818; color: var(--green);   border: 1px solid #00ff8844; }
.badge-tryhackme  { background: #ff3b5c18; color: var(--red);     border: 1px solid #ff3b5c44; }
.badge-easy     { background: #00ff8818; color: var(--green);    border: 1px solid #00ff8844; }
.badge-medium   { background: #ffd16618; color: var(--yellow);   border: 1px solid #ffd16644; }
.badge-hard     { background: #b06cff18; color: var(--purple);   border: 1px solid #b06cff44; }
.badge-insane   { background: #ff3b5c18; color: var(--red);      border: 1px solid #ff3b5c44; }

/* ─── SECTION HEADER ──────────────────────────────────── */
.section-header { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
.section-num { font-family: 'JetBrains Mono', monospace; font-size: .82rem; color: var(--green); letter-spacing: .1em; min-width: 36px; }
.section-header h2, .section-title { font-family: 'Syne', sans-serif; font-size: 1.2rem; font-weight: 700; color: var(--text); letter-spacing: .06em; }
.section-line { flex: 1; height: 1px; background: var(--border); }

/* ─── CALLOUT ─────────────────────────────────────────── */
.callout { border-radius: 4px; padding: 18px 22px; margin: 24px 0; font-size: 1rem; line-height: 1.75; display: flex; gap: 12px; align-items: flex-start; }
.callout-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }
.callout.info    { background: #00d4ff0d; border: 1px solid #00d4ff33; color: var(--cyan); }
.callout.warning { background: #ffd1660d; border: 1px solid #ffd16633; color: var(--yellow); }
.callout.flag    { background: #00ff880d; border: 1px solid #00ff8833; color: var(--green); }
.callout.danger  { background: #ff3b5c0d; border: 1px solid #ff3b5c33; color: var(--red); }
.callout strong  { display: block; margin-bottom: 3px; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; }

/* ─── CODE ────────────────────────────────────────────── */
.code-block { position: relative; margin: 24px 0; border: 1px solid var(--border); border-radius: 4px; overflow: hidden; }
.code-header { display: flex; align-items: center; justify-content: space-between; background: var(--bg3); border-bottom: 1px solid var(--border); padding: 8px 16px; }
.code-lang { font-size: .72rem; font-family: 'JetBrains Mono', monospace; letter-spacing: .15em; text-transform: uppercase; color: var(--text-dim); }
.code-copy { font-size: .72rem; letter-spacing: .1em; color: var(--text-dim); cursor: pointer; background: none; border: 1px solid var(--border); padding: 3px 11px; border-radius: 2px; font-family: 'JetBrains Mono', monospace; transition: all .2s; }
.code-copy:hover  { color: var(--cyan); border-color: var(--cyan); }
.code-copy.copied { color: var(--green); border-color: var(--green); }
pre { background: var(--bg2); padding: 20px 22px; overflow-x: auto; font-family: 'JetBrains Mono', monospace; font-size: .92rem; line-height: 1.75; color: var(--text); }
.kw  { color: var(--purple); }
.fn  { color: var(--cyan); }
.st  { color: var(--yellow); }
.cm  { color: var(--text-dim); font-style: italic; }
.num { color: var(--red); }
.gr  { color: var(--green); }
code { font-family: 'JetBrains Mono', monospace; font-size: .88em; background: var(--bg3); border: 1px solid var(--border); padding: 2px 6px; border-radius: 3px; color: var(--cyan); }

/* ─── TERMINAL ────────────────────────────────────────── */
.terminal { background: #020507; border: 1px solid #1a2f20; border-radius: 4px; margin: 24px 0; overflow: hidden; }
[data-theme="light"] .terminal { background: #1a1f26; border-color: #2a3a4a; }
.terminal-bar { background: #0b1812; padding: 8px 14px; display: flex; align-items: center; gap: 7px; border-bottom: 1px solid #1a2f20; }
[data-theme="light"] .terminal-bar { background: #141a22; border-color: #2a3a4a; }
.tb-dot { width: 10px; height: 10px; border-radius: 50%; }
.tb-dot:nth-child(1) { background: #ff3b5c44; border: 1px solid #ff3b5c88; }
.tb-dot:nth-child(2) { background: #ffd16644; border: 1px solid #ffd16688; }
.tb-dot:nth-child(3) { background: #00ff8844; border: 1px solid #00ff8888; }
.tb-title { font-size: .72rem; font-family: 'JetBrains Mono', monospace; color: #2a4a30; letter-spacing: .15em; margin-left: auto; }
.terminal pre { background: transparent; padding: 18px 20px; font-size: .92rem; line-height: 1.8; }
.prompt   { color: #00ff88; }
.cmd      { color: #e8f4ff; }
.out      { color: #5a7a90; }
.flag-out { color: #00ff88; text-shadow: 0 0 14px #00ff8866; font-weight: 600; }

/* ─── WRITEUP BODY IMAGES ────────────────────────────── */
#wr-content img { width: 100%; height: auto; display: block; border-radius: 4px; margin: 16px 0; }

/* ─── WRITEUP HERO ────────────────────────────────────── */
.hero { margin-bottom: 48px; animation: fadeUp .5s ease both; }
.hero-eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.hero-sep { width: 1px; height: 16px; background: var(--border); }
.hero-meta-text { font-size: .84rem; color: var(--text-dim); letter-spacing: .06em; }
.hero h1 { font-family: 'Syne', sans-serif; font-size: clamp(2rem, 5vw, 3rem); font-weight: 900; color: var(--text); line-height: 1.15; margin-bottom: 18px; letter-spacing: .02em; }
.hero h1 .accent { color: var(--green); text-shadow: var(--glow-g); }
.hero-desc { font-size: 1.05rem; color: var(--text-dim); max-width: 640px; line-height: 1.85; }

.info-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; margin-bottom: 48px; animation: fadeUp .5s .1s ease both; }
.info-cell { background: var(--bg2); padding: 18px 20px; }
.info-label { font-size: .72rem; letter-spacing: .18em; color: var(--text-dim); text-transform: uppercase; margin-bottom: 6px; }
.info-value { font-family: 'JetBrains Mono', monospace; font-size: 1rem; color: var(--text); }
.info-value.green  { color: var(--green); }
.info-value.cyan   { color: var(--cyan); }
.info-value.yellow { color: var(--yellow); }
.info-value.red    { color: var(--red); }

.toc { background: var(--bg2); border: 1px solid var(--border); border-left: 3px solid var(--cyan); border-radius: 4px; padding: 24px 28px; margin-bottom: 48px; animation: fadeUp .5s .2s ease both; }
.toc-title { font-family: 'JetBrains Mono', monospace; font-size: .78rem; letter-spacing: .2em; color: var(--cyan); text-transform: uppercase; margin-bottom: 14px;}
.toc ul { padding-left: 20px; display: flex; flex-direction: column; gap: 7px;  list-style-type: none;}
.toc a { font-size: .98rem; color: var(--text-dim); text-decoration: none; transition: color .2s; }
.toc a:hover { color: var(--cyan); }

.section { margin-bottom: 60px; }
.section p { font-size: 1.05rem; color: var(--text); margin-bottom: 16px; line-height: 1.9; }
.section h2 { font-family: 'Syne', sans-serif; font-size: 1.25rem; font-weight: 700; color: var(--text); letter-spacing: .06em; }

.vuln-table { width: 100%; border-collapse: collapse; font-size: .95rem; margin: 24px 0; }
.vuln-table th { text-align: left; font-family: 'JetBrains Mono', monospace; font-size: .74rem; letter-spacing: .15em; text-transform: uppercase; color: var(--text-dim); padding: 10px 16px; border-bottom: 1px solid var(--border); }
.vuln-table td { padding: 13px 16px; border-bottom: 1px solid var(--border); vertical-align: top; }
.vuln-table tr:last-child td { border-bottom: none; }
.vuln-table tr:hover td { background: var(--bg2); }
.severity-high   { color: var(--red); }
.severity-medium { color: var(--yellow); }
.severity-low    { color: var(--green); }

.steps { display: flex; flex-direction: column; margin: 24px 0; }
.step { display: flex; gap: 20px; }
.step-track { display: flex; flex-direction: column; align-items: center; flex-shrink: 0; }
.step-dot { width: 30px; height: 30px; border-radius: 50%; border: 2px solid var(--green); background: var(--bg); display: flex; align-items: center; justify-content: center; font-family: 'JetBrains Mono', monospace; font-size: .78rem; color: var(--green); flex-shrink: 0; box-shadow: var(--glow-g); }
.step-line { width: 2px; flex: 1; background: var(--border); min-height: 22px; }
.step:last-child .step-line { display: none; }
.step-body { padding-bottom: 32px; flex: 1; }
.step-title { font-family: 'JetBrains Mono', monospace; font-size: .95rem; color: var(--green); margin-bottom: 8px; margin-top: 4px; }
.step-body p { font-size: 1rem; color: var(--text-dim); margin-bottom: 10px; }

.flag-reveal { background: linear-gradient(135deg, #00ff8808, #00ff8818); border: 1px solid #00ff8844; border-radius: 4px; padding: 30px 32px; margin: 40px 0; text-align: center; }
[data-theme="light"] .flag-reveal { background: #e8fff4; border-color: var(--green); }
.flag-label { font-family: 'JetBrains Mono', monospace; font-size: .78rem; letter-spacing: .25em; color: var(--green-dim); text-transform: uppercase; margin-bottom: 14px; }
.flag-value { font-family: 'JetBrains Mono', monospace; font-size: 1.1rem; color: var(--green); text-shadow: var(--glow-g); background: #020d06; border: 1px solid #00ff8833; border-radius: 3px; padding: 13px 26px; display: inline-block; letter-spacing: .05em; word-break: break-all; }
[data-theme="light"] .flag-value { background: #f0fff8; }
.flag-points { margin-top: 14px; font-size: .88rem; color: var(--text-dim); }

.writeup-footer { border-top: 1px solid var(--border); padding-top: 36px; margin-top: 60px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 18px; margin-bottom: 1%;}
.author-block { display: flex; align-items: center; gap: 14px; }
.author-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;

  background-image: url('/img/ksh-logo.png');
  background-size: cover;        /* fills circle */
  background-position: center;   /* centers tomato */
  background-repeat: no-repeat;

  display: flex;
  align-items: center;
  justify-content: center;

  font-family: 'Syne', sans-serif;
  font-size: .82rem;
  font-weight: 700;
  color: #080c10;
}
.author-info-name { font-family: 'JetBrains Mono', monospace; font-size: .95rem; color: var(--text); }
.author-info-role { font-size: .84rem; color: var(--text-dim); }
.footer-tags { display: flex; gap: 7px; flex-wrap: wrap; }
.tag { font-size: .75rem; font-family: 'JetBrains Mono', monospace; letter-spacing: .08em; padding: 4px 11px; border: 1px solid var(--border); border-radius: 2px; color: var(--text-dim); transition: all .2s; cursor: default; }
.tag:hover { border-color: var(--cyan); color: var(--cyan); }

/* ─── SITE FOOTER ─────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--border); padding-top: 32px; margin-top: 80px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.site-footer-logo { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.2rem; color: var(--green); }
.site-footer-copy { font-size: .85rem; color: var(--text-faint); font-family: 'JetBrains Mono', monospace; }

/* ─── CARD ────────────────────────────────────────────── */
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: 6px; padding: 24px 26px; text-decoration: none; color: inherit; display: flex; flex-direction: column; gap: 12px; transition: border-color .2s, background .2s, transform .15s, box-shadow .15s; cursor: pointer; }
.card:hover { border-color: var(--cyan); background: var(--card-hover); transform: translateY(-2px); box-shadow: var(--shadow); }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.card-badges { display: flex; gap: 6px; flex-wrap: wrap; }
.card-title { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1.2rem; color: var(--text); line-height: 1.3; }
.card-desc { font-size: 1rem; color: var(--text-dim); line-height: 1.7; }
.card-meta { display: flex; align-items: center; gap: 14px; font-size: .84rem; color: var(--text-faint); font-family: 'JetBrains Mono', monospace; margin-top: 4px; flex-wrap: wrap; }

/* ─── GRID ────────────────────────────────────────────── */
.writeups-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }

/* ─── FILTER BAR ──────────────────────────────────────── */
.filter-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; padding: 16px 20px; background: var(--bg2); border: 1px solid var(--border); border-radius: 6px; }
.filter-label { font-family: 'JetBrains Mono', monospace; font-size: .8rem; letter-spacing: .15em; color: var(--text-dim); text-transform: uppercase; margin-right: 2px; white-space: nowrap; }
.filter-chips { display: flex; gap: 7px; flex-wrap: wrap; }
.chip { font-size: .8rem; font-family: 'JetBrains Mono', monospace; letter-spacing: .08em; padding: 6px 15px; border: 1px solid var(--border); border-radius: 20px; color: var(--text-dim); cursor: pointer; transition: all .18s; text-transform: uppercase; background: transparent; }
.chip:hover { border-color: var(--cyan); color: var(--cyan); }
.chip.active { border-color: var(--cyan); color: var(--cyan); background: #00d4ff12; }
.chip.active[data-cat="PWN"]       { border-color: var(--red);      color: var(--red);      background: #ff3b5c12; }
.chip.active[data-cat="WEB"]       { border-color: var(--cyan);     color: var(--cyan);     background: #00d4ff12; }
.chip.active[data-cat="CRYPTO"]    { border-color: var(--yellow);   color: var(--yellow);   background: #ffd16612; }
.chip.active[data-cat="REV"]       { border-color: var(--purple);   color: var(--purple);   background: #b06cff12; }
.chip.active[data-cat="MISC"]        { border-color: var(--text-dim); color: var(--text-dim); background: #88888812; }
.chip.active[data-cat="FORENSICS"]  { border-color: var(--blue);     color: var(--blue);     background: #4d9fff12; }
.chip.active[data-cat="HACKTHEBOX"] { border-color: var(--green);    color: var(--green);    background: #00ff8812; }
.chip.active[data-cat="TRYHACKME"]  { border-color: var(--red);      color: var(--red);      background: #ff3b5c12; }
.chip.active[data-diff="EASY"]     { border-color: var(--green);    color: var(--green);    background: #00ff8812; }
.chip.active[data-diff="MEDIUM"]   { border-color: var(--yellow);   color: var(--yellow);   background: #ffd16612; }
.chip.active[data-diff="HARD"]     { border-color: var(--purple);   color: var(--purple);   background: #b06cff12; }
.chip.active[data-diff="INSANE"]   { border-color: var(--red);      color: var(--red);      background: #ff3b5c12; }
.filter-sep { width: 1px; height: 22px; background: var(--border); margin: 0 4px; }
.filter-count { font-family: 'JetBrains Mono', monospace; font-size: .78rem; color: var(--text-faint); margin-left: auto; white-space: nowrap; }
.no-results { text-align: center; padding: 60px 20px; color: var(--text-dim); font-size: 1rem; display: none; }
.no-results.visible { display: block; }

/* ─── SCROLLBAR ───────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ── Rouge code blocks in writeup ─────────────────────── */
#wr-content .highlighter-rouge { position: relative; margin: 20px 0; border: 1px solid var(--border); border-radius: 4px; overflow: hidden; }
#wr-content .highlight { background: #020507; }
[data-theme="light"] #wr-content .highlight { background: #1a1f26; border-color: #2a3a4a; }
#wr-content .highlight::before {
  content: attr(data-lang);
  display: none;
  background: #0b1812;
  padding: 8px 14px;
  font-size: .72rem;
  font-family: var(--mono);
  color: var(--green);
  letter-spacing: .15em;
  border-bottom: 1px solid #1a2f20;
}
#wr-content .highlight.has-lang::before { display: block; }
[data-theme="light"] #wr-content .highlight::before { background: #141a22; border-color: #2a3a4a; }
#wr-content .highlight pre {
  background: transparent;
  padding: 18px 20px;
  font-size: .92rem;
  line-height: 1.8;
  overflow-x: auto;
  margin: 0;
}
#wr-content .highlight pre code { background: none; padding: 0; border: none; }

/* ── Copy button ──────────────────────────────────────── */
.copy-btn {
  position: absolute;
  top: 8px;
  right: 10px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: .6rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 3px 8px;
  cursor: pointer;
  transition: color .15s, border-color .15s;
  z-index: 2;
}
.copy-btn:hover { color: var(--cyan); border-color: var(--cyan); }
.copy-btn.copied { color: var(--green); border-color: var(--green); }
.highlighter-rouge[data-codetitle] .copy-btn { top: 38px; }

/* ── Code block file title ───────────────────────────── */
.highlighter-rouge[data-codetitle]::before {
  content: attr(data-codetitle);
  display: block;
  background: #0d1f14;
  border-bottom: 1px solid #1a2f20;
  padding: 6px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: .65rem;
  color: var(--cyan);
  letter-spacing: .1em;
}
[data-theme="light"] .highlighter-rouge[data-codetitle]::before { background: #141a22; border-color: #2a3a4a; }

/* ── Password gate ────────────────────────────────────── */
#pw-gate { display: flex; align-items: center; justify-content: center; min-height: 60vh; padding: 40px 20px; }
.pw-box { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 48px 40px; max-width: 420px; width: 100%; text-align: center; }
.pw-icon { font-size: 2.4rem; margin-bottom: 18px; }
.pw-title { font-family: 'Syne', sans-serif; font-size: 1.4rem; font-weight: 800; color: var(--text); margin-bottom: 10px; }
.pw-desc { font-size: .9rem; color: var(--text-dim); margin-bottom: 28px; }
.pw-input-row { display: flex; gap: 8px; margin-bottom: 12px; }
.pw-input { flex: 1; background: var(--bg3); border: 1px solid var(--border); border-radius: 4px; padding: 10px 14px; font-family: 'JetBrains Mono', monospace; font-size: .85rem; color: var(--text); outline: none; transition: border-color .2s; }
.pw-input:focus { border-color: var(--cyan); }
.pw-btn { background: var(--green); color: #080c10; border: none; border-radius: 4px; padding: 10px 20px; font-family: 'JetBrains Mono', monospace; font-size: .75rem; font-weight: 700; letter-spacing: .08em; cursor: pointer; transition: background .2s; white-space: nowrap; }
.pw-btn:hover { background: var(--green-dim); }
.pw-error { color: var(--red); font-size: .82rem; display: none; }

/* ── Category slider ─────────────────────────────────── */
.cat-slider { display: flex; gap: 14px; overflow-x: auto; padding-bottom: 10px; scrollbar-width: thin; }
.cat-slider::-webkit-scrollbar { height: 4px; }
.cat-slider::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.cat-slide-card { flex: 0 0 220px; background: var(--bg2); border: 1px solid var(--border); border-radius: 6px; padding: 20px; text-decoration: none; color: inherit; display: flex; flex-direction: column; gap: 10px; transition: border-color .2s, transform .15s; }
.cat-slide-card:hover { border-color: var(--cyan); transform: translateY(-2px); }
.cat-slide-card .card-title { font-size: 1rem; }
.cat-slide-card .card-desc { font-size: .82rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ── Blue color for categories ───────────────────────── */
.cat-section-head[data-color="blue"] .cat-section-name { color: var(--blue); }
.cat-section-head[data-color="blue"] { border-bottom-color: var(--blue); }
.jump-link[data-color="blue"]:hover  { color: var(--blue); border-color: var(--blue); }
.cat-pill[data-color="blue"]:hover   { border-color: var(--blue); }
.cat-pill[data-color="blue"] .cat-name { color: var(--blue); }

/* ── Box Info Card ───────────────────────────────────── */
.box-info { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 24px; margin-bottom: 32px; display: flex; gap: 24px; align-items: flex-start; }
.box-info-avatar { width: 80px; height: 80px; border-radius: 8px; object-fit: cover; flex-shrink: 0; border: 1px solid var(--border); }
.box-info-body { flex: 1; min-width: 0; }
.box-info-name { font-family: 'Syne', sans-serif; font-size: 1.25rem; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.box-info-name a { color: inherit; text-decoration: none; }
.box-info-name a:hover { color: var(--cyan); }
.box-info-os { display: inline-flex; align-items: center; gap: 6px; font-size: .82rem; color: var(--text-dim); margin-bottom: 12px; }
.box-info-os img { width: 18px; height: 18px; object-fit: contain; }
.box-info-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.box-info-table tr { border-top: 1px solid var(--border); }
.box-info-table tr:first-child { border-top: none; }
.box-info-table td { padding: 7px 4px; vertical-align: middle; }
.box-info-table td:first-child { color: var(--text-dim); width: 140px; white-space: nowrap; }
.box-info-table td:last-child { color: var(--text); }
.box-info-fb { display: inline-flex; align-items: center; gap: 8px; }
.fb-icon { width: 20px; height: 20px; object-fit: contain; vertical-align: middle; }
.htb-badge { height: 28px; width: auto; border-radius: 3px; vertical-align: middle; }
@media (max-width: 640px) { .box-info { flex-direction: column; } .box-info-avatar { width: 60px; height: 60px; } }

/* ─── RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 640px) {
  .info-strip { grid-template-columns: 1fr 1fr; }
  .topnav-links { display: none; }
  pre { font-size: .85rem; }
  .writeups-grid { grid-template-columns: 1fr; }
}