/* ═══════════════════════════════════════════════════════════════
   0ffsecninja — Elite Cybersecurity Portfolio v3
   ═══════════════════════════════════════════════════════════════ */

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

:root {
  --bg:          #040912;
  --surface:     #070e1a;
  --card:        #0a1525;
  --card-hover:  #0d1b30;
  --border:      #131f33;
  --border-glow: rgba(0,212,255,0.18);
  --cyan:        #00d4ff;
  --cyan-mid:    #00a8cc;
  --cyan-dim:    rgba(0,212,255,0.07);
  --purple:      #7c3aed;
  --purple-dim:  rgba(124,58,237,0.1);
  --green:       #00ff88;
  --green-dim:   rgba(0,255,136,0.07);
  --red:         #ff3b5c;
  --orange:      #f59e0b;
  --gold:        #fbbf24;
  --text:        #dde6f0;
  --subtle:      #7a96b8;
  --muted:       #3d5470;
  --radius:      12px;
  --radius-lg:   18px;
  --nav-h:       62px;
  --font-mono:   'JetBrains Mono', monospace;
  --font-sans:   'Inter', sans-serif;
  --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* CRT scanlines */
body::before {
  content: '';
  position: fixed; inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 3px,
    rgba(0,0,0,0.035) 3px, rgba(0,0,0,0.035) 4px
  );
  pointer-events: none; z-index: 9999;
}

/* vignette */
body::after {
  content: '';
  position: fixed; inset: 0;
  background: radial-gradient(ellipse 120% 120% at 50% 50%,
    transparent 55%, rgba(0,0,0,0.65) 100%);
  pointer-events: none; z-index: 9998;
}

nav, section, footer { position: relative; z-index: 1; }

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--cyan), var(--purple));
  border-radius: 2px;
}

/* ── Selection ──────────────────────────────────────────────── */
::selection { background: rgba(0,212,255,0.2); color: var(--cyan); }

/* ─────────────────────────────────────────────── NAV ───────── */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h); z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5%;
  background: rgba(4,9,18,0.82);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: border-color 0.4s, background 0.4s;
}

nav.scrolled {
  background: rgba(4,9,18,0.96);
  border-bottom-color: var(--border-glow);
  box-shadow: 0 1px 30px rgba(0,212,255,0.06);
}

/* nav logo */
.nav-logo {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--cyan);
  text-decoration: none;
  display: flex; align-items: center; gap: 8px;
  letter-spacing: 0.04em;
}

.nav-pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(0,255,136,0.5);
  animation: pulse-ring 2.5s ease-out infinite;
}

@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(0,255,136,0.5); }
  70%  { box-shadow: 0 0 0 7px rgba(0,255,136,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,255,136,0); }
}

/* nav links */
.nav-links { list-style: none; display: flex; gap: 2rem; }

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.07em;
  transition: color 0.2s;
  position: relative; padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute; left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  transition: width 0.3s var(--ease-out);
}

.nav-links a:hover, .nav-links a.active { color: var(--cyan); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.hamburger span { display: block; width: 22px; height: 1.5px; background: var(--cyan); border-radius: 2px; transition: all 0.3s; }

/* ─────────────────────────────────────────────── HERO ──────── */
#hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: calc(var(--nav-h) + 5rem) 5% 5rem;
  background: transparent; overflow: hidden;
}

.hero-bg, .hero-vignette { display: none; }

.hero-content { max-width: 900px; }

/* CLASSIFIED badge */
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--green);
  border: 1px solid rgba(0,255,136,0.25);
  background: rgba(0,255,136,0.05);
  padding: 7px 16px; border-radius: 4px;
  margin-bottom: 2.2rem;
  position: relative; overflow: hidden;
}

.hero-badge::before {
  content: '';
  position: absolute; top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0,255,136,0.08), transparent);
  animation: badge-sweep 3s ease-in-out infinite;
}

@keyframes badge-sweep {
  0%   { left: -100%; }
  50%, 100% { left: 100%; }
}

.badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green);
  animation: pulse-ring 2.5s ease-out infinite;
}

/* Hero name */
.hero-name {
  font-size: clamp(3.8rem, 9vw, 7.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 0.88;
  margin-bottom: 1.4rem;
}

.hero-name .line1 { display: block; color: var(--text); }

.hero-name .line2 {
  display: block;
  background: linear-gradient(110deg, var(--cyan) 0%, #5b7fff 45%, var(--purple) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 32px rgba(0,212,255,0.3));
  animation: glitch-name 9s infinite;
}

@keyframes glitch-name {
  0%, 90%, 100% { clip-path: none; transform: none; opacity: 1; }
  92% { clip-path: polygon(0 15%, 100% 15%, 100% 35%, 0 35%); transform: translateX(-4px); }
  94% { clip-path: polygon(0 55%, 100% 55%, 100% 75%, 0 75%); transform: translateX(4px); }
  96% { clip-path: none; transform: none; opacity: 0.9; }
}

/* typewriter */
.hero-typewriter {
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 1.8vw, 1.05rem);
  color: var(--subtle);
  margin-bottom: 1.8rem;
  display: flex; align-items: center; gap: 10px;
}

.hero-prompt { color: var(--cyan); user-select: none; }

.cursor {
  display: inline-block;
  width: 2px; height: 1.1em; background: var(--cyan);
  margin-left: 2px; vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes blink { 50% { opacity: 0; } }

/* hero bio */
.hero-bio {
  font-size: 0.97rem; color: var(--subtle);
  max-width: 580px; line-height: 1.85;
  margin-bottom: 2.5rem;
  padding-left: 1.2rem;
  border-left: 2px solid;
  border-image: linear-gradient(180deg, var(--cyan), var(--purple)) 1;
}

.hero-bio strong { color: var(--text); font-weight: 600; }

/* CTA buttons */
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3.5rem; }

.btn-glow {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 30px;
  background: linear-gradient(135deg, var(--cyan), #0099cc);
  color: var(--bg); font-weight: 700; font-size: 0.85rem;
  font-family: var(--font-mono); letter-spacing: 0.06em;
  border: none; border-radius: 7px; text-decoration: none;
  cursor: pointer; transition: all 0.25s var(--ease-out);
  box-shadow: 0 0 0 0 rgba(0,212,255,0.4), inset 0 1px 0 rgba(255,255,255,0.15);
  position: relative; overflow: hidden;
}

.btn-glow::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0; transition: opacity 0.2s;
}

.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 32px rgba(0,212,255,0.45), inset 0 1px 0 rgba(255,255,255,0.15);
}

.btn-glow:hover::before { opacity: 1; }

.btn-outline {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 28px;
  background: transparent;
  border: 1px solid var(--border-glow); color: var(--subtle);
  font-size: 0.85rem; font-family: var(--font-mono); letter-spacing: 0.05em;
  border-radius: 7px; text-decoration: none;
  transition: all 0.25s var(--ease-out);
}

.btn-outline:hover {
  border-color: var(--cyan); color: var(--cyan);
  background: var(--cyan-dim);
  box-shadow: 0 0 18px rgba(0,212,255,0.1);
}

/* Hero stats — terminal panel */
.hero-panel {
  display: grid; grid-template-columns: repeat(4,1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(10,21,37,0.7);
  backdrop-filter: blur(10px);
  max-width: 600px;
  position: relative;
}

.hero-panel::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--purple), transparent);
}

.stat-cell {
  padding: 1.2rem 0.8rem;
  text-align: center;
  border-right: 1px solid var(--border);
}

.stat-cell:last-child { border-right: none; }

.stat-val {
  font-family: var(--font-mono);
  font-size: 1.9rem; font-weight: 700;
  background: linear-gradient(135deg, var(--cyan), #7c6fff);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1;
  filter: drop-shadow(0 0 10px rgba(0,212,255,0.3));
}

.stat-lbl {
  font-size: 0.62rem; color: var(--muted); margin-top: 6px;
  text-transform: uppercase; letter-spacing: 0.1em;
}

/* ─────────────────────────────────── SECTION BASE ──────────── */
section { padding: 6.5rem 5%; }

.section-eyebrow {
  display: flex; align-items: center; gap: 10px;
  justify-content: center; margin-bottom: 0.7rem;
}

.eyebrow-line {
  height: 1px; width: 40px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}

.eyebrow-line.right {
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem; color: var(--cyan);
  letter-spacing: 0.18em; text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.9rem, 3.5vw, 2.6rem);
  font-weight: 800; letter-spacing: -0.03em;
  text-align: center; margin-bottom: 0.5rem;
}

.section-title span {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header { margin-bottom: 4rem; }

/* ─────────────────────────────────────────── ABOUT ─────────── */
#about { background: rgba(7,14,26,0.9); backdrop-filter: blur(2px); }

.about-grid {
  display: grid; grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem; align-items: start;
  max-width: 1150px; margin: 0 auto;
}

.about-text p {
  font-size: 0.95rem; color: var(--subtle);
  line-height: 1.9; margin-bottom: 1.2rem;
}

.about-text strong { color: var(--text); }

.about-text p:last-child { margin-bottom: 0; }

/* Terminal block */
.terminal-wrap {
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 24px 48px rgba(0,0,0,0.4),
              0 0 0 1px rgba(0,212,255,0.05);
  position: relative;
}

.terminal-wrap::before {
  content: '';
  position: absolute; inset: -1px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(0,212,255,0.15), transparent 50%, rgba(124,58,237,0.1));
  z-index: -1;
}

.term-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 16px;
  background: #080f1c;
  border-bottom: 1px solid var(--border);
}

.term-dot { width: 11px; height: 11px; border-radius: 50%; }
.td-r { background: #ff5f57; }
.td-y { background: #febc2e; }
.td-g { background: #28c840; }

.term-title {
  font-family: var(--font-mono);
  font-size: 0.68rem; color: var(--muted);
  margin: 0 auto; letter-spacing: 0.1em;
}

.term-body { padding: 1.4rem 1.6rem; background: #060c1a; }

.t-row {
  font-family: var(--font-mono);
  font-size: 0.76rem; line-height: 2;
  display: flex; align-items: baseline; flex-wrap: wrap;
}

.t-prompt { color: var(--green); }
.t-cmd    { color: var(--cyan); padding-left: 4px; }
.t-key    { color: var(--muted); padding-left: 16px; width: 90px; flex-shrink: 0; }
.t-val    { color: var(--text); }
.t-good   { color: var(--green); }
.t-blank  { height: 10px; }

/* ─────────────────────────────────────────── SKILLS ────────── */
#skills { background: rgba(4,9,18,0.88); backdrop-filter: blur(2px); }

.skills-wrap { max-width: 1150px; margin: 0 auto; }

.skill-cats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem; margin-bottom: 2.5rem;
}

.s-cat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  position: relative; overflow: hidden;
  transition: border-color 0.3s, transform 0.3s var(--ease-spring), box-shadow 0.3s;
}

/* animated top accent */
.s-cat::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.s-cat:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3), 0 0 20px rgba(0,212,255,0.06);
}

.s-cat:hover::after { transform: scaleX(1); }

.s-cat-head {
  display: flex; align-items: center; gap: 10px; margin-bottom: 1rem;
}

.s-ico {
  width: 34px; height: 34px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; flex-shrink: 0;
}

.ico-c { background: rgba(0,212,255,0.1); color: var(--cyan); border: 1px solid rgba(0,212,255,0.2); }
.ico-p { background: rgba(124,58,237,0.1); color: #a78bfa; border: 1px solid rgba(124,58,237,0.2); }
.ico-g { background: rgba(0,255,136,0.08); color: var(--green); border: 1px solid rgba(0,255,136,0.2); }

.s-cat-name { font-size: 0.83rem; font-weight: 700; letter-spacing: 0.01em; }

.s-tags { display: flex; flex-wrap: wrap; gap: 5px; }

.s-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem; padding: 3px 9px;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border); border-radius: 3px;
  color: var(--muted); letter-spacing: 0.03em;
  transition: all 0.2s;
}

.s-cat:hover .s-tag {
  border-color: rgba(0,212,255,0.18); color: var(--subtle);
}

/* Toolbox */
.toolbox-label {
  font-family: var(--font-mono);
  font-size: 0.67rem; color: var(--muted);
  letter-spacing: 0.15em; text-transform: uppercase;
  margin-bottom: 0.9rem;
}

.toolbox-label::before { content: '>_ '; }

.toolbox {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px,1fr));
  gap: 1rem;
}

.tb-cat {
  background: rgba(10,21,37,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
}

.tb-head {
  font-family: var(--font-mono); font-size: 0.66rem;
  color: var(--cyan); letter-spacing: 0.12em;
  text-transform: uppercase; margin-bottom: 0.65rem;
}

.tb-tags { display: flex; flex-wrap: wrap; gap: 5px; }

.tb-tag {
  font-size: 0.67rem; padding: 2px 8px;
  background: var(--border); border-radius: 3px; color: var(--muted);
  border: none;
}

/* ─────────────────────────────────────────── EXPERIENCE ─────── */
#experience { background: rgba(7,14,26,0.9); backdrop-filter: blur(2px); }

.timeline { max-width: 840px; margin: 0 auto; position: relative; }

.timeline::before {
  content: '';
  position: absolute; left: 152px; top: 16px; bottom: 0; width: 1px;
  background: linear-gradient(180deg,
    var(--cyan) 0%, var(--purple) 60%, transparent 100%);
  opacity: 0.25;
}

.tl-item {
  display: grid; grid-template-columns: 152px 1fr;
  gap: 2.2rem; margin-bottom: 2rem; position: relative;
}

.tl-date {
  text-align: right; padding-right: 2.2rem; padding-top: 1.3rem;
}

.tl-period {
  font-family: var(--font-mono); font-size: 0.68rem;
  color: var(--cyan); line-height: 1.6; letter-spacing: 0.04em;
}

.tl-co {
  font-size: 0.7rem; color: var(--muted); margin-top: 4px;
}

.tl-dot {
  position: absolute; left: 146px; top: 22px;
  width: 13px; height: 13px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--cyan); z-index: 1;
  box-shadow: 0 0 0 3px rgba(0,212,255,0.1), 0 0 12px rgba(0,212,255,0.25);
  transition: box-shadow 0.3s;
}

.tl-item:hover .tl-dot {
  box-shadow: 0 0 0 5px rgba(0,212,255,0.12), 0 0 20px rgba(0,212,255,0.4);
}

.tl-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: border-color 0.3s, box-shadow 0.3s;
  position: relative; overflow: hidden;
}

.tl-card::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--purple));
  opacity: 0; transition: opacity 0.3s;
}

.tl-item:hover .tl-card {
  border-color: var(--border-glow);
  box-shadow: 0 8px 32px rgba(0,0,0,0.25), 0 0 20px rgba(0,212,255,0.05);
}

.tl-item:hover .tl-card::before { opacity: 1; }

.tl-role { font-size: 0.98rem; font-weight: 700; margin-bottom: 2px; }

.tl-company {
  font-family: var(--font-mono); font-size: 0.74rem;
  color: var(--cyan); margin-bottom: 0.9rem;
}

.tl-desc { font-size: 0.84rem; color: var(--subtle); line-height: 1.78; }

.tl-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 1rem; }

.tl-tag {
  font-family: var(--font-mono); font-size: 0.64rem;
  padding: 3px 9px; border-radius: 3px;
  background: rgba(0,212,255,0.05);
  border: 1px solid rgba(0,212,255,0.14); color: rgba(0,212,255,0.65);
}

/* ─────────────────────────────────────────── RESEARCH ────────── */
#research { background: rgba(4,9,18,0.88); backdrop-filter: blur(2px); }

/* Publication hero card */
.pub-hero {
  max-width: 1150px; margin: 0 auto 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  position: relative; overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.pub-hero:hover {
  border-color: rgba(0,212,255,0.25);
  box-shadow: 0 24px 60px rgba(0,0,0,0.35), 0 0 0 1px rgba(0,212,255,0.08);
}

/* scanning accent line on top */
.pub-hero::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--purple), var(--cyan));
  background-size: 200% 100%;
  animation: scan-line 4s linear infinite;
}

@keyframes scan-line {
  0%   { background-position: 0% 0%; }
  100% { background-position: 200% 0%; }
}

/* left bar */
.pub-hero::after {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--purple));
}

/* corner accent */
.pub-corner {
  position: absolute; top: 16px; right: 20px;
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--muted); letter-spacing: 0.12em;
}

.pub-type {
  font-family: var(--font-mono); font-size: 0.64rem;
  color: var(--purple); background: rgba(124,58,237,0.1);
  border: 1px solid rgba(124,58,237,0.22);
  padding: 2px 10px; border-radius: 3px; letter-spacing: 0.12em;
  text-transform: uppercase; margin-bottom: 0.8rem; display: inline-block;
}

.pub-title { font-size: 1.08rem; font-weight: 700; line-height: 1.4; margin-bottom: 0.6rem; }

.pub-meta {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--muted); display: flex; flex-wrap: wrap;
  gap: 0.4rem 1.2rem; margin-bottom: 1.1rem;
}

.pub-meta a { color: var(--cyan); text-decoration: none; }
.pub-meta a:hover { text-decoration: underline; }

.pub-body { font-size: 0.855rem; color: var(--subtle); line-height: 1.78; }
.pub-body strong { color: var(--text); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 1rem; }

.chip {
  font-family: var(--font-mono); font-size: 0.65rem;
  padding: 3px 10px; border-radius: 3px;
  background: rgba(124,58,237,0.08);
  border: 1px solid rgba(124,58,237,0.2); color: #a78bfa;
}

/* Project card variant */
.pub-project {
  max-width: 1150px; margin: 0 auto 3rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 2.2rem;
  position: relative; overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.pub-project:hover {
  border-color: rgba(0,212,255,0.2);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}

.pub-project::after {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--green), var(--cyan));
}

/* CVE grid */
.cve-divider {
  display: flex; align-items: center; gap: 1rem;
  max-width: 1150px; margin: 0 auto 1.8rem;
}

.cve-divider-line {
  flex: 1; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.cve-divider-label {
  font-family: var(--font-mono); font-size: 0.67rem;
  color: var(--muted); letter-spacing: 0.14em; text-transform: uppercase;
  white-space: nowrap;
}

.cve-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.1rem; max-width: 1150px; margin: 0 auto;
}

.cve-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex; flex-direction: column; gap: 0.55rem;
  text-decoration: none; cursor: pointer;
  transition: border-color 0.25s, transform 0.25s var(--ease-spring), box-shadow 0.25s;
  position: relative; overflow: hidden;
}

.cve-card::after {
  content: '↗';
  position: absolute; right: 1rem; top: 1rem;
  font-size: 0.75rem; color: var(--cyan);
  opacity: 0; transform: translate(-4px, 4px);
  transition: all 0.2s;
}

.cve-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.25), 0 0 16px rgba(0,212,255,0.07);
}

.cve-card:hover::after { opacity: 1; transform: none; }

.cve-hdr { display: flex; align-items: center; justify-content: space-between; gap: 8px; }

.cve-id {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--cyan); background: var(--cyan-dim);
  border: 1px solid var(--border-glow);
  padding: 2px 9px; border-radius: 3px;
}

.sev {
  font-family: var(--font-mono); font-size: 0.63rem;
  font-weight: 700; padding: 2px 9px; border-radius: 3px;
  letter-spacing: 0.08em; text-transform: uppercase;
}

.sev-high   { background: rgba(245,158,11,0.1);  color: var(--orange);  border: 1px solid rgba(245,158,11,0.22); }
.sev-medium { background: rgba(250,204,21,0.08);  color: #fcd34d;        border: 1px solid rgba(250,204,21,0.18); }
.sev-hof    { background: rgba(0,255,136,0.07);   color: var(--green);   border: 1px solid rgba(0,255,136,0.2); }

.cve-title { font-size: 0.88rem; font-weight: 600; color: var(--text); }
.cve-desc  { font-size: 0.78rem; color: var(--subtle); line-height: 1.6; }

.cve-vendor {
  font-family: var(--font-mono); font-size: 0.67rem;
  color: var(--muted); display: flex; align-items: center; gap: 6px;
  margin-top: auto; padding-top: 0.4rem;
}

/* HOF section */
.hof-wrap { max-width: 1150px; margin: 2.5rem auto 0; }

.hof-label {
  font-family: var(--font-mono); font-size: 0.67rem;
  color: var(--muted); letter-spacing: 0.15em;
  text-transform: uppercase; text-align: center; margin-bottom: 1rem;
}

.hof-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 0.9rem; }

.hof-badge {
  display: flex; align-items: center; gap: 10px;
  background: rgba(10,21,37,0.8);
  border: 1px solid rgba(0,255,136,0.14);
  border-radius: var(--radius); padding: 0.9rem 1.6rem;
  font-size: 0.84rem; font-weight: 600;
  transition: all 0.25s;
}

.hof-badge:hover {
  border-color: var(--green);
  box-shadow: 0 0 24px rgba(0,255,136,0.12);
  transform: translateY(-2px);
}

.hof-badge i { color: var(--green); font-size: 1.05rem; }

/* ─────────────────────────────────────── CERTIFICATIONS ─────── */
#certifications { background: rgba(7,14,26,0.9); backdrop-filter: blur(2px); }

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px,1fr));
  gap: 1.1rem; max-width: 1050px; margin: 0 auto;
}

/* Base cert card */
.cert-card {
  position: relative; border-radius: var(--radius);
  overflow: hidden; text-decoration: none; color: var(--text);
  display: flex; align-items: center; gap: 14px;
  padding: 1.3rem 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s, border-color 0.3s;
}

.cert-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-glow);
  box-shadow: 0 12px 32px rgba(0,0,0,0.3), 0 0 20px rgba(0,212,255,0.07);
}

/* Spinning border for top certs */
.cert-card.top {
  border-color: rgba(0,212,255,0.2);
  background: linear-gradient(135deg, rgba(10,21,37,1) 0%, rgba(0,212,255,0.04) 100%);
}

.cert-card.top::before {
  content: '';
  position: absolute; inset: -1px;
  border-radius: var(--radius);
  background: conic-gradient(
    from var(--spin, 0deg),
    transparent 0%,
    rgba(0,212,255,0.4) 8%,
    rgba(124,58,237,0.4) 15%,
    transparent 20%
  );
  animation: cert-spin 6s linear infinite;
  z-index: 0;
}

.cert-card.top::after {
  content: '';
  position: absolute; inset: 1px;
  background: var(--card);
  background: linear-gradient(135deg, rgba(10,21,37,1), rgba(0,212,255,0.06));
  border-radius: calc(var(--radius) - 1px);
  z-index: 0;
}

@keyframes cert-spin {
  to { --spin: 360deg; }
}

/* Fallback for browsers without @property */
@supports not (background: conic-gradient(from 0deg, red, blue)) {
  .cert-card.top::before { display: none; }
}

.cert-inner {
  position: relative; z-index: 1;
  display: flex; align-items: center; gap: 14px; width: 100%;
}

.cert-ico {
  width: 42px; height: 42px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; flex-shrink: 0;
  position: relative;
}

.cert-ico.c-gold {
  background: linear-gradient(135deg, rgba(251,191,36,0.15), rgba(251,191,36,0.05));
  border: 1px solid rgba(251,191,36,0.25);
  box-shadow: 0 0 16px rgba(251,191,36,0.1);
}

.cert-ico.c-cyan {
  background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.22);
  box-shadow: 0 0 12px rgba(0,212,255,0.1);
}

.cert-ico.c-purple {
  background: rgba(124,58,237,0.1); border: 1px solid rgba(124,58,237,0.22);
}

.cert-ico.c-aws {
  background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.2);
}

.cert-ico.c-azure {
  background: rgba(0,120,215,0.1); border: 1px solid rgba(0,120,215,0.2);
}

.cert-ico.c-red {
  background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.2);
}

.cert-name { font-size: 0.87rem; font-weight: 700; }
.cert-sub  { font-size: 0.68rem; color: var(--muted); margin-top: 2px; }

.cert-verify {
  font-family: var(--font-mono); font-size: 0.6rem;
  color: var(--green); letter-spacing: 0.1em;
  display: flex; align-items: center; gap: 4px; margin-top: 4px;
}

/* ──────────────────────────────────────── CONTACT ──────────── */
#contact { background: rgba(4,9,18,0.92); backdrop-filter: blur(2px); }

.contact-box {
  max-width: 720px; margin: 0 auto;
  text-align: center;
}

.contact-box p {
  font-size: 0.96rem; color: var(--subtle);
  line-height: 1.85; margin-bottom: 3rem;
}

/* Availability indicator */
.avail-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--green); letter-spacing: 0.1em;
  border: 1px solid rgba(0,255,136,0.2);
  background: rgba(0,255,136,0.05);
  padding: 6px 16px; border-radius: 100px;
  margin-bottom: 1.5rem;
}

.contact-links {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 0.9rem;
  margin-bottom: 3rem;
}

.contact-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--subtle);
  font-size: 0.85rem; font-weight: 500; text-decoration: none;
  transition: all 0.25s var(--ease-out);
  position: relative; overflow: hidden;
}

.contact-btn::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--cyan-dim), transparent);
  opacity: 0; transition: opacity 0.25s;
}

.contact-btn:hover {
  border-color: var(--border-glow); color: var(--cyan);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2), 0 0 16px rgba(0,212,255,0.08);
  transform: translateY(-2px);
}

.contact-btn:hover::before { opacity: 1; }

.contact-btn i { font-size: 1rem; position: relative; z-index: 1; }
.contact-btn span { position: relative; z-index: 1; }

/* divider */
.contact-divider {
  display: flex; align-items: center; gap: 1rem; margin-bottom: 2rem;
}

.contact-divider-line { flex: 1; height: 1px; background: var(--border); }
.contact-divider-text {
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--muted); letter-spacing: 0.1em;
}

/* Research links row */
.research-links {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 0.8rem;
}

.research-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px;
  border: 1px solid rgba(124,58,237,0.25);
  background: rgba(124,58,237,0.07);
  border-radius: var(--radius); color: #a78bfa;
  font-size: 0.82rem; text-decoration: none;
  transition: all 0.2s;
}

.research-btn:hover {
  border-color: rgba(124,58,237,0.5);
  box-shadow: 0 0 20px rgba(124,58,237,0.15);
  transform: translateY(-2px);
}

/* ──────────────────────────────────────── FOOTER ──────────── */
footer {
  background: rgba(7,14,26,0.95);
  border-top: 1px solid var(--border);
  padding: 1.8rem 5%;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  position: relative; z-index: 1;
}

.footer-logo {
  font-family: var(--font-mono); font-size: 0.78rem;
  color: var(--cyan); display: flex; align-items: center; gap: 8px;
}

.footer-copy { font-size: 0.73rem; color: var(--muted); }

.footer-links { display: flex; gap: 1rem; }
.footer-links a {
  font-size: 0.8rem; color: var(--muted); text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--cyan); }

/* ──────────────────────────────────────── ANIMATIONS ──────── */
.fade-up {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.fade-up.visible { opacity: 1; transform: none; }

.fade-up:nth-child(2) { transition-delay: 0.08s; }
.fade-up:nth-child(3) { transition-delay: 0.16s; }
.fade-up:nth-child(4) { transition-delay: 0.24s; }
.fade-up:nth-child(5) { transition-delay: 0.32s; }
.fade-up:nth-child(6) { transition-delay: 0.40s; }

/* ──────────────────────────────────────── RESPONSIVE ──────── */
@media (max-width: 960px) {
  .skill-cats { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: rgba(4,9,18,0.98); border-bottom: 1px solid var(--border);
    padding: 1.5rem 5%; gap: 1.2rem;
  }
  .about-grid { grid-template-columns: 1fr; }
  .skill-cats { grid-template-columns: 1fr; }
  .timeline::before { left: 0; }
  .tl-item { grid-template-columns: 1fr; }
  .tl-date { text-align: left; padding-right: 0; padding-left: 1.5rem; padding-top: 0; }
  .tl-dot { left: -6px; }
  .hero-panel { grid-template-columns: repeat(2,1fr); max-width: 320px; }
}

@media (max-width: 500px) {
  .cve-grid { grid-template-columns: 1fr; }
  .hero-panel { grid-template-columns: repeat(2,1fr); }
}

/* ──────────────────────────────── @property for conic anim ─── */
@property --spin {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}