/* ═══════════════════════════════════════════════
   0xBR3N — style.css  (v2 — no scene, mobile ready)
   ═══════════════════════════════════════════════ */

:root {
  --black:         #050508;
  --bg:            #080b10;
  --bg-card:       #0d1117;
  --green:         #00ff88;
  --green-dim:     #00cc6a;
  --green-glow:    rgba(0, 255, 136, 0.15);
  --cyan:          #00d4ff;
  --red:           #ff4757;
  --orange:        #ffa502;
  --yellow:        #ffdd59;
  --text:          #c9d1d9;
  --text-dim:      #8b949e;
  --text-muted:    #4a5568;
  --border:        rgba(0, 255, 136, 0.12);
  --border-bright: rgba(0, 255, 136, 0.35);
  --font-mono:     'IBM Plex Mono', 'Share Tech Mono', monospace;
  --font-display:  'Orbitron', monospace;
  --glow-sm:       0 0 8px  rgba(0, 255, 136, 0.4);
  --glow-md:       0 0 20px rgba(0, 255, 136, 0.3);
  --glow-lg:       0 0 40px rgba(0, 255, 136, 0.2);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}
@media (max-width: 768px) { body { cursor: auto; } }

/* ── Custom Cursor (desktop only) ── */
.cursor, .cursor-trail { pointer-events: none; }
.cursor {
  position: fixed; width: 10px; height: 10px;
  background: var(--green); border-radius: 50%;
  z-index: 9999; transform: translate(-50%, -50%);
  transition: transform 0.08s ease;
  box-shadow: 0 0 12px var(--green), 0 0 24px rgba(0,255,136,0.4);
  mix-blend-mode: screen;
}
.cursor-trail {
  position: fixed; width: 28px; height: 28px;
  border: 1px solid rgba(0,255,136,0.5); border-radius: 50%;
  z-index: 9998; transform: translate(-50%, -50%);
  transition: all 0.18s ease; mix-blend-mode: screen;
}
@media (max-width: 768px) { .cursor, .cursor-trail { display: none; } }

/* ── Matrix Canvas ── */
#matrix-canvas {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0; opacity: 0.04; pointer-events: none;
}
@media (max-width: 768px) { #matrix-canvas { opacity: 0.025; } }

/* ── Scanlines ── */
.scanlines {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.03) 2px, rgba(0,0,0,0.03) 4px
  );
  pointer-events: none; z-index: 1;
}

/* ════════════════════════════════════
   NAV
════════════════════════════════════ */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 3rem; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: all 0.4s ease;
}
.nav.scrolled {
  background: rgba(8,11,16,0.95);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}
.nav-logo {
  font-family: var(--font-display); font-size: 1.1rem;
  font-weight: 700; letter-spacing: 0.15em;
  color: var(--green); text-shadow: var(--glow-sm);
}
.bracket { color: var(--text-muted); }
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-link {
  text-decoration: none; color: var(--text-dim);
  font-size: 0.8rem; letter-spacing: 0.08em;
  transition: color 0.2s; position: relative;
}
.nav-link .num { color: var(--green); margin-right: 0.25rem; font-size: 0.7rem; }
.nav-link::after {
  content: ''; position: absolute; bottom: -3px; left: 0;
  width: 0; height: 1px; background: var(--green);
  transition: width 0.3s ease;
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after { width: 100%; }
.nav-status { display: flex; align-items: center; gap: 0.5rem; font-size: 0.72rem; color: var(--text-dim); }
.status-dot {
  width: 7px; height: 7px; background: var(--green);
  border-radius: 50%; animation: pulse-dot 2s infinite; box-shadow: var(--glow-sm);
  flex-shrink: 0;
}
@keyframes pulse-dot {
  0%,100% { opacity:1; transform:scale(1); }
  50% { opacity:0.5; transform:scale(0.8); }
}

/* Hamburger (mobile) */
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--green); border-radius: 2px;
  transition: all 0.3s;
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile nav drawer */
.mobile-nav {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(5,5,8,0.97); backdrop-filter: blur(12px);
  z-index: 99; display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
}
.mobile-nav.open { opacity: 1; pointer-events: all; }
.mobile-nav ul { list-style: none; text-align: center; }
.mobile-nav ul li { margin: 1.5rem 0; }
.mobile-nav .nav-link {
  font-size: 1.4rem; letter-spacing: 0.12em;
  color: var(--text-dim);
}
.mobile-nav .nav-link:hover { color: var(--green); }

@media (max-width: 900px) {
  .nav-links, .nav-status { display: none; }
  .nav-hamburger { display: flex; }
  .nav { padding: 1rem 1.5rem; }
}

/* ════════════════════════════════════
   HERO
════════════════════════════════════ */
.hero {
  position: relative; z-index: 2;
  min-height: 100vh;
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 3rem;
  padding: 8rem 3rem 4rem;
  max-width: 1400px; margin: 0 auto;
}
.hero-tag { margin-bottom: 1.2rem; }
.tag-line { font-size: 0.78rem; color: var(--green); letter-spacing: 0.1em; text-shadow: var(--glow-sm); }

/* Identity block */
.identity-block { margin-bottom: 1.8rem; }
.identity-label {
  font-size: 0.65rem; letter-spacing: 0.2em;
  color: var(--text-muted); margin-bottom: 0.6rem;
  font-family: var(--font-display);
}
.identity-name {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4.5rem);
  font-weight: 900; line-height: 1;
  color: var(--text); letter-spacing: -0.02em;
  position: relative; display: inline-block;
  animation: glitch-anim 5s infinite;
}
.identity-name::before,
.identity-name::after {
  content: attr(data-text);
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  font-family: var(--font-display);
  font-size: inherit; font-weight: 900;
  letter-spacing: inherit;
}
.identity-name::before {
  color: var(--cyan);
  animation: glitch-before 5s infinite;
  clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}
.identity-name::after {
  color: var(--red);
  animation: glitch-after 5s infinite;
  clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}
@keyframes glitch-anim {
  0%,90%,100% { transform: none; }
  92% { transform: skew(-0.5deg); }
  94% { transform: skew(0.5deg); }
}
@keyframes glitch-before {
  0%,89%,100% { transform: none; opacity: 0; }
  90% { transform: translate(-3px, 1px); opacity: 0.7; }
  92% { transform: translate(3px, -1px); opacity: 0.7; }
  94% { opacity: 0; }
}
@keyframes glitch-after {
  0%,89%,100% { transform: none; opacity: 0; }
  91% { transform: translate(3px, 2px); opacity: 0.7; }
  93% { transform: translate(-3px, -2px); opacity: 0.7; }
  95% { opacity: 0; }
}
.identity-title {
  font-size: 0.9rem; color: var(--text-dim);
  margin-top: 0.5rem; letter-spacing: 0.05em;
}
.id-dot { color: var(--green); margin: 0 0.3rem; }

/* CVE Achievement Badge */
.cve-badge {
  background: linear-gradient(135deg, rgba(255,71,87,0.1), rgba(255,71,87,0.04));
  border: 1px solid rgba(255,71,87,0.35);
  border-radius: 6px; padding: 1rem 1.2rem;
  margin-bottom: 1.8rem;
  position: relative; overflow: hidden;
}
.cve-badge::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--red), rgba(255,71,87,0.2));
}
.cve-badge-inner {
  display: flex; align-items: center;
  justify-content: space-between; gap: 1rem;
  margin-bottom: 0.4rem;
}
.cve-badge-left { display: flex; flex-direction: column; gap: 0.2rem; }
.cve-badge-label {
  font-size: 0.62rem; letter-spacing: 0.18em;
  color: var(--red); font-family: var(--font-display);
  text-transform: uppercase;
}
.cve-badge-id {
  font-size: 1rem; font-weight: 600;
  color: var(--text); letter-spacing: 0.05em;
}
.cve-badge-score {
  font-family: var(--font-display); font-size: 2.4rem;
  font-weight: 900; color: var(--red);
  text-shadow: 0 0 20px rgba(255,71,87,0.5);
  line-height: 1;
}
.cve-badge-sub {
  font-size: 0.72rem; color: rgba(255,71,87,0.7);
  letter-spacing: 0.04em;
}

/* Typewriter */
.hero-sub { margin-bottom: 2rem; font-size: 0.88rem; color: var(--text-dim); min-height: 1.4rem; }
.typewriter::after { content: '█'; color: var(--green); animation: blink-cursor 1s step-end infinite; }
@keyframes blink-cursor { 50% { opacity: 0; } }

/* Stats */
.hero-stats { display: flex; align-items: center; gap: 1.8rem; margin-bottom: 2rem; flex-wrap: wrap; }
.stat { text-align: center; }
.stat-num {
  display: block; font-family: var(--font-display);
  font-size: 2rem; font-weight: 700;
  color: var(--green); text-shadow: var(--glow-md); line-height: 1;
}
.stat-label { font-size: 0.68rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.1em; margin-top: 0.25rem; display: block; }
.stat-divider { color: var(--border-bright); font-size: 1.2rem; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-block; padding: 0.75rem 1.8rem;
  font-family: var(--font-mono); font-size: 0.82rem;
  letter-spacing: 0.1em; text-decoration: none;
  text-transform: uppercase; border-radius: 2px;
  transition: all 0.25s ease; position: relative; overflow: hidden;
  cursor: pointer;
}
.btn::before {
  content: ''; position: absolute; inset: 0;
  transform: translateX(-100%); transition: transform 0.3s ease;
}
.btn:hover::before { transform: translateX(0); }
.btn-primary {
  background: var(--green); color: var(--black); font-weight: 600;
  box-shadow: var(--glow-md); border: 1px solid var(--green);
}
.btn-primary::before { background: rgba(255,255,255,0.15); }
.btn-primary:hover { box-shadow: 0 0 30px rgba(0,255,136,0.6); transform: translateY(-2px); }
.btn-ghost {
  background: transparent; color: var(--green); border: 1px solid var(--border-bright);
}
.btn-ghost::before { background: var(--green-glow); }
.btn-ghost:hover { border-color: var(--green); box-shadow: var(--glow-sm); }

/* Terminal */
.hero-terminal {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; overflow: hidden;
  box-shadow: 0 0 40px rgba(0,0,0,0.5), var(--glow-lg);
  position: relative;
}
.hero-terminal::before {
  content: ''; position: absolute; inset: 0; border-radius: 8px;
  background: linear-gradient(135deg, rgba(0,255,136,0.03), transparent);
  pointer-events: none;
}
.terminal-header {
  display: flex; align-items: center; gap: 1rem;
  padding: 0.8rem 1.2rem;
  background: rgba(0,0,0,0.3); border-bottom: 1px solid var(--border);
}
.terminal-dots { display: flex; gap: 6px; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red { background: var(--red); }
.dot-yellow { background: var(--yellow); }
.dot-green { background: var(--green); }
.terminal-title { font-size: 0.74rem; color: var(--text-dim); flex: 1; text-align: center; letter-spacing: 0.05em; }
.terminal-body { padding: 1.2rem 1.4rem; font-size: 0.82rem; line-height: 1.9; }
.terminal-line { display: flex; align-items: baseline; gap: 0.5rem; flex-wrap: wrap; }
.prompt { color: var(--green); text-shadow: var(--glow-sm); flex-shrink: 0; }
.cmd { color: var(--cyan); }
.output { color: var(--text-dim); padding-left: 1rem; width: 100%; }
.output.err { color: var(--red); }
.output.suc { color: var(--green); }
.blink { animation: blink-cursor 1s step-end infinite; }

/* Animations */
.animate-in { opacity: 0; transform: translateY(20px); }
.animate-in.visible { animation: slide-up 0.6s ease forwards; }
@keyframes slide-up { to { opacity: 1; transform: translateY(0); } }
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ════════════════════════════════════
   SECTIONS
════════════════════════════════════ */
.section {
  position: relative; z-index: 2;
  max-width: 1200px; margin: 0 auto; padding: 6rem 3rem;
}
.section-header { display: flex; align-items: center; gap: 1.2rem; margin-bottom: 3rem; }
.section-num { font-family: var(--font-display); font-size: 0.72rem; color: var(--green); text-shadow: var(--glow-sm); letter-spacing: 0.1em; }
.section-title { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; color: var(--text); letter-spacing: 0.05em; white-space: nowrap; }
.section-line { flex: 1; height: 1px; background: var(--border); max-width: 400px; }

/* ════════════════════════════════════
   ABOUT
════════════════════════════════════ */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.about-intro {
  font-family: var(--font-display); font-size: 1rem;
  color: var(--green); margin-bottom: 1.2rem; text-shadow: var(--glow-sm);
  line-height: 1.4;
}
.about-text p { margin-bottom: 1rem; color: var(--text); font-size: 0.9rem; line-height: 1.75; }
.about-text strong { color: var(--green); }

/* ── Cert section (redesigned) ── */
.cert-section { margin-top: 2rem; }
.cert-section-label {
  font-size: 0.7rem; letter-spacing: 0.15em;
  color: var(--green); margin-bottom: 1rem;
  text-shadow: var(--glow-sm);
}
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.75rem;
}
.cert-card {
  display: flex; flex-direction: column; align-items: center;
  gap: 0.3rem; padding: 0.9rem 0.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: all 0.25s ease;
  text-align: center;
  cursor: default;
}
.cert-card:hover {
  border-color: var(--green);
  background: rgba(0,255,136,0.05);
  box-shadow: var(--glow-sm);
  transform: translateY(-2px);
}
.cert-card.cert-top {
  border-color: rgba(0,255,136,0.28);
  background: rgba(0,255,136,0.04);
}
.cert-card.cert-top:hover { border-color: var(--green); }
.cert-icon { font-size: 1.1rem; }
.cert-name {
  font-family: var(--font-display); font-size: 0.72rem;
  font-weight: 700; color: var(--text);
  letter-spacing: 0.06em; line-height: 1.2;
}
.cert-card.cert-top .cert-name { color: var(--green); text-shadow: var(--glow-sm); }
.cert-issuer {
  font-size: 0.62rem; color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* Skill tags — improved readability */
.skill-category { margin-bottom: 2rem; }
.skill-category h4 {
  font-family: var(--font-display); font-size: 0.7rem;
  color: var(--green); letter-spacing: 0.15em;
  margin-bottom: 0.9rem; text-transform: uppercase;
}
.skill-list { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.skill-tag {
  padding: 0.38rem 0.85rem;
  background: rgba(139,148,158,0.07);
  border: 1px solid rgba(139,148,158,0.2);
  border-radius: 4px;
  font-size: 0.8rem;          /* bigger than before */
  color: var(--text);          /* bright white, not dim */
  letter-spacing: 0.02em;
  line-height: 1.4;
  transition: all 0.2s;
}
.skill-tag:hover {
  border-color: var(--green); color: var(--green);
  background: var(--green-glow); box-shadow: var(--glow-sm);
}

/* ════════════════════════════════════
   CVEs
════════════════════════════════════ */
.cve-live-badge {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: 0.78rem; color: var(--text-dim);
  margin-bottom: 1.5rem; padding: 0.5rem 1rem;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 4px; width: fit-content;
}
.cve-filter { display: flex; gap: 0.7rem; margin-bottom: 2rem; flex-wrap: wrap; }
.filter-btn {
  padding: 0.4rem 1.1rem; background: transparent;
  border: 1px solid var(--border); color: var(--text-dim);
  font-family: var(--font-mono); font-size: 0.78rem;
  letter-spacing: 0.08em; cursor: pointer; border-radius: 2px; transition: all 0.2s;
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--green); color: var(--green);
  background: var(--green-glow); box-shadow: var(--glow-sm);
}
.cve-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 1.5rem; }
.cve-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 4px; padding: 1.5rem;
  transition: all 0.3s ease; position: relative; overflow: hidden;
}
.cve-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  transform: scaleY(0); transform-origin: top; transition: transform 0.3s ease;
}
.cve-card[data-severity="critical"]::before { background: var(--red); }
.cve-card[data-severity="high"]::before     { background: var(--orange); }
.cve-card[data-severity="medium"]::before   { background: var(--yellow); }
.cve-card:hover { border-color: var(--border-bright); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.4), var(--glow-sm); }
.cve-card:hover::before { transform: scaleY(1); }
.cve-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.8rem; flex-wrap: wrap; gap: 0.4rem; }
.cve-id { font-size: 0.72rem; color: var(--text-dim); letter-spacing: 0.05em; }
.severity { padding: 0.22rem 0.65rem; border-radius: 2px; font-size: 0.68rem; font-weight: 600; letter-spacing: 0.08em; }
.severity.critical { background: rgba(255,71,87,0.15); color: var(--red); border: 1px solid rgba(255,71,87,0.3); }
.severity.high     { background: rgba(255,165,2,0.15);  color: var(--orange); border: 1px solid rgba(255,165,2,0.3); }
.severity.medium   { background: rgba(255,221,89,0.15); color: var(--yellow); border: 1px solid rgba(255,221,89,0.3); }
.cve-title { font-size: 0.9rem; color: var(--text); font-weight: 600; margin-bottom: 0.6rem; line-height: 1.4; }
.cve-desc  { font-size: 0.8rem; color: var(--text-dim); margin-bottom: 1rem; line-height: 1.6; }
.cve-meta  { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.cve-tag   { padding: 0.15rem 0.5rem; background: rgba(0,255,136,0.06); border: 1px solid var(--border); border-radius: 2px; font-size: 0.68rem; color: var(--text-dim); }
.cve-footer { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--border); padding-top: 0.8rem; flex-wrap: wrap; gap: 0.5rem; }
.cve-date  { font-size: 0.72rem; color: var(--text-muted); }
.cve-links-row { display: flex; gap: 1rem; }
.cve-link  { font-size: 0.75rem; color: var(--green); text-decoration: none; transition: text-shadow 0.2s; }
.cve-link:hover { text-shadow: var(--glow-sm); }
.cve-cta { text-align: center; margin-top: 2.5rem; display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ════════════════════════════════════
   RESEARCH
════════════════════════════════════ */
.research-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.post-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; transition: all 0.3s ease; }
.post-card:hover { border-color: var(--border-bright); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.4); }
.post-featured { grid-column: span 2; display: grid; grid-template-columns: 1fr 1.5fr; }
.post-img-placeholder {
  background: linear-gradient(135deg, #0a1a0a, #051205);
  display: flex; align-items: center; justify-content: center;
  min-height: 200px; border-right: 1px solid var(--border);
}
.post-glitch { animation: glitch-text 3s infinite; font-size: 5rem; letter-spacing: -0.5rem; color: rgba(0,255,136,0.12); }
@keyframes glitch-text {
  0%,90%,100% { transform:none; filter:none; }
  92% { transform:translate(-4px,2px); filter:hue-rotate(90deg); }
  94% { transform:translate(4px,-2px); filter:hue-rotate(-90deg); }
}
.post-content { padding: 1.8rem; }
.post-meta { display: flex; gap: 1rem; margin-bottom: 0.8rem; font-size: 0.72rem; flex-wrap: wrap; }
.post-cat  { color: var(--green); text-transform: uppercase; letter-spacing: 0.1em; text-shadow: var(--glow-sm); }
.post-date { color: var(--text-muted); }
.post-title   { font-size: 1rem; color: var(--text); margin-bottom: 0.8rem; line-height: 1.4; }
.post-excerpt { font-size: 0.82rem; color: var(--text-dim); margin-bottom: 1.2rem; line-height: 1.6; }
.post-read { font-size: 0.8rem; color: var(--green); text-decoration: none; transition: text-shadow 0.2s; }
.post-read:hover { text-shadow: var(--glow-sm); }

/* ════════════════════════════════════
   TOOLS
════════════════════════════════════ */
.tools-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.tool-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 4px; padding: 1.8rem;
  transition: all 0.3s ease; text-align: center;
  display: flex; flex-direction: column;
}
.tool-card:hover { border-color: var(--green); box-shadow: var(--glow-md); transform: translateY(-4px); }
.tool-icon { font-size: 2rem; margin-bottom: 1rem; }
.tool-name { font-family: var(--font-display); font-size: 0.85rem; color: var(--green); margin-bottom: 0.8rem; text-shadow: var(--glow-sm); }
.tool-desc { font-size: 0.78rem; color: var(--text-dim); margin-bottom: 1rem; line-height: 1.6; flex: 1; }
.tool-tags { display: flex; gap: 0.5rem; justify-content: center; margin-bottom: 1.2rem; flex-wrap: wrap; }
.tool-tag { padding: 0.15rem 0.5rem; background: var(--green-glow); border: 1px solid var(--border-bright); border-radius: 2px; font-size: 0.68rem; color: var(--green); }
.tool-link { font-size: 0.78rem; color: var(--text-dim); text-decoration: none; transition: color 0.2s; }
.tool-link:hover { color: var(--green); }

/* ════════════════════════════════════
   CONTACT
════════════════════════════════════ */
.contact-content { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.contact-intro { font-size: 1rem; margin-bottom: 1rem; color: var(--text); line-height: 1.6; }
.contact-intro strong { color: var(--green); }
.contact-text p { font-size: 0.88rem; color: var(--text-dim); margin-bottom: 1.5rem; }
.contact-links { display: flex; flex-direction: column; gap: 0.9rem; }
.contact-item {
  display: flex; align-items: center; gap: 1rem;
  text-decoration: none; color: var(--text-dim); font-size: 0.82rem;
  padding: 0.85rem 1rem; border: 1px solid var(--border);
  border-radius: 4px; transition: all 0.2s;
  word-break: break-all;
}
.contact-item:hover { border-color: var(--green); color: var(--green); background: var(--green-glow); box-shadow: var(--glow-sm); }
.contact-icon { font-size: 1.1rem; color: var(--green); flex-shrink: 0; }
.pgp-box { background: var(--bg-card); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; }
.pgp-header { padding: 0.7rem 1rem; background: rgba(0,0,0,0.3); border-bottom: 1px solid var(--border); font-size: 0.75rem; color: var(--text-dim); letter-spacing: 0.1em; }
.pgp-content { padding: 1.2rem; font-size: 0.72rem; color: var(--text-muted); white-space: pre-wrap; line-height: 1.6; word-break: break-all; }
.pgp-copy { width: 100%; padding: 0.7rem; background: transparent; border: none; border-top: 1px solid var(--border); color: var(--green); font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.1em; cursor: pointer; transition: background 0.2s; }
.pgp-copy:hover { background: var(--green-glow); }

/* ════════════════════════════════════
   FOOTER
════════════════════════════════════ */
.footer { position: relative; z-index: 2; border-top: 1px solid var(--border); padding: 2rem 3rem; text-align: center; }
.footer-content { display: flex; align-items: center; justify-content: center; gap: 2rem; font-size: 0.78rem; color: var(--text-muted); flex-wrap: wrap; }
.footer-logo { font-family: var(--font-display); color: var(--green); text-shadow: var(--glow-sm); font-size: 0.9rem; }

/* ════════════════════════════════════
   RESPONSIVE
════════════════════════════════════ */
@media (max-width: 1100px) {
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 6.5rem 1.5rem 3rem;
    gap: 2.5rem;
  }
  .hero-terminal { display: none; }
  .identity-name { font-size: clamp(2.2rem, 8vw, 3.5rem); }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .research-grid { grid-template-columns: 1fr; }
  .post-featured { grid-column: span 1; grid-template-columns: 1fr; }
  .post-img-placeholder { min-height: 120px; border-right: none; border-bottom: 1px solid var(--border); }
  .contact-content { grid-template-columns: 1fr; gap: 2rem; }
  .section { padding: 4rem 1.5rem; }
  .cert-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
}
@media (max-width: 600px) {
  .tools-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: 1.2rem; }
  .cve-badge-score { font-size: 1.8rem; }
  .cert-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 0.6rem; }
  .skill-tag { font-size: 0.78rem; padding: 0.35rem 0.75rem; }
}
@media (max-width: 400px) {
  .tools-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 1rem; }
  .stat-divider { display: none; }
}