/* ================================================================
   SYSTEM TERMINAL PALETTE — Engineering Portfolio
   Fonts: Bebas Neue (display) + IBM Plex Mono (body)
   Accent: #00FFB2 aquamarine · Amber: #FFB800 · BG: #040810
================================================================ */
:root {
  --bg:      #040810;
  --bg-1:    #070E1A;
  --bg-2:    #0A1525;
  --accent:  #00FFB2;
  --amber:   #FFB800;
  --red:     #FF4D4D;
  --green:   #00FF9E;
  --text:     #B8D8E8;
  --text-dim: #8AACBC;
  --bright:   #D8F0F8;
  --muted:    #5A8FA8;
  --border:  rgba(0, 255, 178, 0.1);
  --bh:      rgba(0, 255, 178, 0.4);
  --glow:    rgba(0, 255, 178, 0.2);
  --glow-sm: rgba(0, 255, 178, 0.06);
  --mono:    'IBM Plex Mono', 'Cascadia Code', 'Fira Code', monospace;
  --display: 'Bebas Neue', var(--mono);
  --nav-h:   58px;
  --max:     900px;
  --ease:    cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

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

/* Dot grid texture — CSS only */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(0, 255, 178, 0.055) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

/* Subtle scanlines */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent,
    transparent 3px,
    rgba(0, 0, 0, 0.045) 3px,
    rgba(0, 0, 0, 0.045) 4px
  );
  pointer-events: none;
  z-index: 0;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(0,255,178,0.2); }
::-webkit-scrollbar-thumb:hover { background: rgba(0,255,178,0.4); }

/* ────────────────── UTILITIES ────────────────────────────── */
.container { max-width: var(--max); margin: 0 auto; padding: 0 1.5rem; position: relative; z-index: 1; }
.mono-sm   { font-family: var(--mono); font-size: 0.875em; color: var(--accent); }
.hl-i      { color: var(--accent); }

/* ────────────────── SCROLL REVEAL ───────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ────────────────── NAVIGATION ──────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
#navbar.scrolled {
  background: rgba(4, 8, 16, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}

.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-logo {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
  white-space: nowrap;
  text-shadow: 0 0 10px rgba(0,255,178,0.4);
}

.nav-links { display: flex; align-items: center; gap: 1.5rem; flex: 1; }
.nav-links a {
  font-size: 0.775rem;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0.04em;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }

.nav-cta {
  font-size: 0.675rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent);
  border: 1px solid var(--border);
  padding: 0.35rem 0.85rem;
  white-space: nowrap;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.nav-cta:hover {
  background: var(--glow-sm);
  border-color: var(--bh);
  box-shadow: 0 0 10px rgba(0,255,178,0.15);
}
.nav-cta--hire {
  color: var(--amber);
  border-color: rgba(255,184,0,0.35);
  animation: hireCta 3s ease-in-out infinite;
}
.nav-cta--hire:hover {
  background: rgba(255,184,0,0.08);
  border-color: rgba(255,184,0,0.65);
  box-shadow: 0 0 14px rgba(255,184,0,0.25);
}
@keyframes hireCta {
  0%, 100% { box-shadow: none; }
  50%       { box-shadow: 0 0 8px rgba(255,184,0,0.2); }
}

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.nav-burger span {
  display: block;
  width: 20px; height: 1.5px;
  background: var(--text);
  transition: transform 0.3s, opacity 0.3s;
}
.nav-burger.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger.active span:nth-child(2) { opacity: 0; }
.nav-burger.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ────────────────── HERO ────────────────────────────────── */
#hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--nav-h) 1.5rem 5rem;
}

#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: block;
  z-index: 0;
  pointer-events: none;
  opacity: 0.38;
}

.hero-glow {
  position: absolute;
  top: 45%; left: 50%;
  transform: translate(-50%, -50%);
  width: 65vw; height: 45vh;
  background: radial-gradient(ellipse, rgba(0,255,178,0.065), transparent 70%);
  pointer-events: none;
  z-index: 0;
  animation: glowPulse 6s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { opacity: 0.8; transform: translate(-50%,-50%) scale(1); }
  50%       { opacity: 1;   transform: translate(-50%,-50%) scale(1.08); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 860px;
}

/* Status chips */
.sys-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.5s var(--ease) 0.1s both;
}
.sys-chip {
  font-family: var(--mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid rgba(58,90,106,0.45);
  padding: 0.25em 0.7em;
}
.sys-live {
  color: var(--green);
  border-color: rgba(0,255,158,0.3);
  text-shadow: 0 0 8px rgba(0,255,158,0.55);
}
.sys-hiring {
  color: var(--amber);
  background: rgba(255,184,0,0.07);
  border-color: rgba(255,184,0,0.55);
  text-shadow: 0 0 10px rgba(255,184,0,0.7), 0 0 24px rgba(255,184,0,0.35);
  font-weight: 700;
  letter-spacing: 0.16em;
  animation: hiringPulse 2.8s ease-in-out infinite;
}
@keyframes hiringPulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 6px rgba(255,184,0,0.15); }
  50%       { opacity: 0.85; box-shadow: 0 0 14px 3px rgba(255,184,0,0.28); }
}

/* HERO NAME — Bebas Neue, massive */
.hero-name {
  font-family: var(--display);
  font-size: clamp(5.5rem, 18vw, 13rem);
  font-weight: 400;
  line-height: 0.88;
  letter-spacing: 0.04em;
  color: var(--bright);
  margin-bottom: 0.6rem;
  position: relative;
  display: inline-block;
  animation: nameIn 0.7s var(--ease) 0.25s both;
  cursor: default;
  text-shadow: 0 0 80px rgba(0,255,178,0.12);
}

/* Glitch on hover */
.hero-name::before,
.hero-name::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  font-family: var(--display);
  font-size: inherit;
  letter-spacing: inherit;
  line-height: inherit;
  opacity: 0;
  pointer-events: none;
}
.hero-name:hover::before {
  color: var(--amber);
  clip-path: inset(22% 0 58% 0);
  animation: glitch-hi 0.45s steps(2, end);
}
.hero-name:hover::after {
  color: var(--accent);
  clip-path: inset(58% 0 12% 0);
  animation: glitch-lo 0.45s steps(2, end) 0.07s;
}
@keyframes glitch-hi {
  0%,100% { transform: translate(0); opacity: 0; }
  25% { transform: translate(-5px, 1px); opacity: 0.9; }
  50% { transform: translate(5px, -1px); opacity: 0.9; }
  75% { transform: translate(-2px, 0); opacity: 0.5; }
}
@keyframes glitch-lo {
  0%,100% { transform: translate(0); opacity: 0; }
  25% { transform: translate(5px, 1px); opacity: 0.9; }
  50% { transform: translate(-5px,-1px); opacity: 0.9; }
  75% { transform: translate(2px, 0); opacity: 0.5; }
}

/* Rule divider */
.hero-rule-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 0.8rem 0 1.4rem;
  animation: fadeUp 0.5s var(--ease) 0.45s both;
}
.hero-rule-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border), transparent);
}
.hero-rule-label {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--muted);
  white-space: nowrap;
}

/* Terminal prompt */
.term-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-family: var(--mono);
  font-size: clamp(0.875rem, 2.2vw, 1.15rem);
  margin-bottom: 1.3rem;
  animation: fadeUp 0.5s var(--ease) 0.55s both;
}
.term-dir { color: var(--muted); font-size: 0.85em; }
.term-sym { color: var(--accent); }
.term-cmd { color: var(--text); }
.term-arr { color: var(--muted); }
#typed-text { color: var(--accent); font-weight: 600; }
.term-cur {
  color: var(--accent);
  font-size: 1.1em;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* Sub tagline */
.hero-sub {
  font-size: clamp(0.775rem, 1.65vw, 0.9rem);
  color: var(--muted);
  margin-bottom: 2rem;
  line-height: 1.85;
  animation: fadeUp 0.5s var(--ease) 0.65s both;
}
.hl { color: var(--accent); font-weight: 600; }
.dot-sep { margin: 0 0.25rem; color: var(--muted); }

/* CTA buttons */
.hero-btns {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  animation: fadeUp 0.5s var(--ease) 0.75s both;
}
.hbtn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.725rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 0;
  transition: all 0.2s var(--ease);
}
.hbtn-accent {
  background: var(--accent);
  color: var(--bg);
  border: 1px solid var(--accent);
  box-shadow: 0 0 22px rgba(0,255,178,0.3), 0 4px 14px rgba(0,0,0,0.5);
}
.hbtn-accent:hover {
  background: #33FFBE;
  box-shadow: 0 0 38px rgba(0,255,178,0.5), 0 6px 22px rgba(0,0,0,0.6);
  transform: translateY(-2px);
}
.hbtn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.hbtn-outline:hover {
  border-color: var(--bh);
  color: var(--accent);
  background: var(--glow-sm);
  transform: translateY(-2px);
}

/* Scroll indicator */
.scroll-sig {
  position: absolute;
  bottom: 2.25rem; left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: fadeUp 0.5s var(--ease) 1.1s both;
}
.scroll-label {
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  color: var(--muted);
}
.scroll-track {
  width: 1.5px; height: 38px;
  background: rgba(58,90,106,0.25);
  position: relative;
  overflow: hidden;
}
.scroll-thumb {
  width: 100%; height: 40%;
  background: var(--accent);
  position: absolute;
  top: -40%;
  animation: scrollDown 2.2s ease-in-out infinite 1.5s;
  box-shadow: 0 0 6px var(--accent);
}
@keyframes scrollDown {
  0%   { top: -40%; opacity: 0; }
  20%  { opacity: 1; }
  100% { top: 140%; opacity: 0; }
}

/* Entry animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes nameIn {
  from { opacity: 0; transform: skewX(-4deg) translateY(35px); letter-spacing: 0.12em; }
  to   { opacity: 1; transform: skewX(0) translateY(0); letter-spacing: 0.04em; }
}

/* ────────────────── SECTIONS SHARED ─────────────────────── */
.sec { padding: 6rem 0; position: relative; z-index: 1; }

.sec-title {
  font-family: var(--mono);
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 2.75rem;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}
.sec-num {
  font-family: var(--display);
  font-size: 2.75em;
  line-height: 1;
  color: var(--accent);
  opacity: 0.2;
  letter-spacing: 0.04em;
  font-style: normal;
}

.sub-label {
  font-size: 0.725rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

/* ────────────────── ABOUT ───────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.85;
  margin-bottom: 1rem;
}
.about-text p:last-child { margin-bottom: 0; }

/* Stats with Bebas Neue numbers */
.stats-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-self: center;
}
.stat-cell {
  background: var(--bg-1);
  border: 1px solid var(--border);
  padding: 1.25rem 1rem;
  text-align: center;
  transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
}
.stat-cell:hover {
  border-color: var(--bh);
  background: var(--bg-2);
  box-shadow: 0 0 20px var(--glow);
}
.stat-v {
  display: block;
  font-family: var(--display);
  font-size: 3.75rem;
  line-height: 1;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-shadow: 0 0 24px rgba(0,255,178,0.4);
  margin-bottom: 0.6rem;
}
.stat-sep {
  width: 28px; height: 1px;
  background: var(--border);
  margin: 0.45rem auto;
}
.stat-k {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
}

/* ────────────────── EXPERIENCE — LOG FEED ──────────────── */
.log-feed { display: flex; flex-direction: column; gap: 0.75rem; }

.log-entry {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-left: 3px solid rgba(0,255,178,0.18);
  padding: 1.25rem 1.5rem;
  transition: border-color 0.25s, border-left-color 0.25s, background 0.25s, transform 0.25s var(--ease);
}
.log-entry:hover {
  border-color: rgba(0,255,178,0.3);
  border-left-color: var(--accent);
  background: var(--bg-2);
  transform: translateX(5px);
}

.log-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}
.log-ts {
  font-size: 0.675rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--accent);
  opacity: 0.65;
}
.log-badge {
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.15em 0.55em;
  border: 1px solid;
}
.log-badge--active {
  color: var(--green);
  border-color: rgba(0,255,158,0.35);
  text-shadow: 0 0 6px rgba(0,255,158,0.5);
}

.log-main { margin-bottom: 0.75rem; }
.log-role {
  font-size: 1rem;
  font-weight: 600;
  color: var(--bright);
  margin-bottom: 0.2rem;
}
.log-co {
  font-size: 0.775rem;
  color: var(--accent);
  opacity: 0.65;
}

.log-bullets {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
}
.log-bullets li {
  font-size: 0.8rem;
  color: var(--text-dim);
  padding-left: 1rem;
  position: relative;
  line-height: 1.65;
}
.log-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  opacity: 0.45;
  font-size: 0.75em;
  top: 0.15em;
}

/* ────────────────── OPEN SOURCE ─────────────────────────── */
.proj-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.proj-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  cursor: pointer;
  transition: border-color 0.25s, background 0.25s, transform 0.3s var(--ease), box-shadow 0.3s;
}
.proj-card:hover {
  border-color: var(--bh);
  background: var(--bg-2);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.45), 0 0 24px var(--glow);
}

.proj-top {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.proj-name {
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--accent);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.proj-lang {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.15em 0.45em;
  border: 1px solid;
  flex-shrink: 0;
}
.lang-php { color: #9B99E8; border-color: rgba(155,153,232,0.3); }
.lang-py  { color: #58A6FF; border-color: rgba(88,166,255,0.3); }
.lang-js  { color: var(--amber); border-color: rgba(255,184,0,0.3); }

.proj-ext {
  color: var(--muted);
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: color 0.2s;
}
.proj-card:hover .proj-ext { color: var(--accent); }

.proj-desc {
  font-size: 0.775rem;
  color: var(--text-dim);
  line-height: 1.65;
  flex: 1;
}

.proj-tags { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.ptag {
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--muted);
  background: rgba(58,90,106,0.12);
  border: 1px solid rgba(58,90,106,0.28);
  padding: 0.2em 0.55em;
}

/* Contribution table */
.contrib-table {
  border: 1px solid var(--border);
  overflow: hidden;
}
.contrib-row {
  display: grid;
  grid-template-columns: 165px 1fr auto;
  align-items: center;
  gap: 1.25rem;
  padding: 0.9rem 1.25rem;
  background: var(--bg-1);
  border-bottom: 1px solid var(--border);
  transition: background 0.2s, border-left-color 0.2s;
  border-left: 3px solid transparent;
}
.contrib-row:last-child { border-bottom: none; }
.contrib-row:hover {
  background: var(--bg-2);
  border-left-color: var(--accent);
}
.cr-repo {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}
.cr-msg {
  font-size: 0.775rem;
  color: var(--text-dim);
  line-height: 1.5;
}
.cr-msg code {
  color: var(--accent);
  background: var(--glow-sm);
  padding: 0.1em 0.3em;
  border: 1px solid var(--border);
  font-size: 0.9em;
}
.cr-pr {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--green);
  white-space: nowrap;
  text-shadow: 0 0 8px rgba(0,255,158,0.4);
}

/* ────────────────── RESEARCH ────────────────────────────── */
.pub-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  padding: 2rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.pub-card:hover {
  border-color: rgba(255,184,0,0.3);
  box-shadow: 0 0 30px rgba(255,184,0,0.08);
}
.pub-meta {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.pub-sep { color: var(--muted); }
.pub-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--bright);
  line-height: 1.5;
  margin-bottom: 0.4rem;
}
.pub-authors {
  font-size: 0.8rem;
  color: var(--muted);
  font-style: italic;
  margin-bottom: 1.25rem;
}
.pub-hr {
  height: 1px;
  background: var(--border);
  margin: 1.25rem 0;
}
.pub-metrics {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.pub-m { display: flex; flex-direction: column; gap: 0.2rem; }
.pub-mv {
  font-family: var(--display);
  font-size: 2.5rem;
  line-height: 1;
  color: var(--amber);
  letter-spacing: 0.04em;
  text-shadow: 0 0 18px rgba(255,184,0,0.4);
}
.pub-mk {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
}
.pub-m-sep {
  font-size: 0.8rem;
  color: var(--muted);
  align-self: center;
}
.pub-abstract {
  font-size: 0.825rem;
  color: var(--text-dim);
  line-height: 1.8;
}

/* ────────────────── SKILLS — TERMINAL ───────────────────── */
.skill-terminal {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.sk-group {
  background: var(--bg-1);
  border: 1px solid var(--border);
  padding: 1rem 1.25rem;
  transition: border-color 0.25s, background 0.25s;
}
.sk-group:hover {
  border-color: rgba(0,255,178,0.22);
  background: var(--bg-2);
}
.sk-cmd {
  font-size: 0.75rem;
  margin-bottom: 0.75rem;
  display: flex;
  gap: 0.4rem;
  align-items: center;
}
.sk-ps     { color: rgba(0,255,178,0.55); }
.sk-dollar { color: var(--accent); }
.sk-ls     { color: var(--text); }

.sk-items { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.sk-item {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--muted);
  background: rgba(58,90,106,0.1);
  border: 1px solid rgba(58,90,106,0.22);
  padding: 0.25em 0.6em;
  cursor: default;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.sk-item:hover {
  color: var(--accent);
  background: var(--glow-sm);
  border-color: rgba(0,255,178,0.25);
}

/* ────────────────── EDUCATION ───────────────────────────── */
.edu-list {
  border: 1px solid var(--border);
  overflow: hidden;
}
.edu-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-1);
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}
.edu-row:last-child { border-bottom: none; }
.edu-row:hover { background: var(--bg-2); }
.edu-deg {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--bright);
  margin-bottom: 0.2rem;
}
.edu-school {
  font-size: 0.775rem;
  color: var(--accent);
  opacity: 0.65;
}
.edu-year {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  color: var(--muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.cert-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.cert-item {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted);
  background: rgba(255,184,0,0.05);
  border: 1px solid rgba(255,184,0,0.18);
  padding: 0.3em 0.75em;
  cursor: default;
  transition: color 0.2s, background 0.2s;
}
.cert-item:hover {
  color: var(--amber);
  background: rgba(255,184,0,0.1);
}

/* ────────────────── FOOTER ──────────────────────────────── */
#footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  position: relative;
  z-index: 1;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}
.footer-sig {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-shadow: 0 0 10px rgba(0,255,178,0.3);
}
.footer-links { display: flex; gap: 1rem; }
.footer-links a {
  color: var(--muted);
  display: flex;
  transition: color 0.2s, transform 0.2s;
}
.footer-links a:hover { color: var(--accent); transform: translateY(-2px); }
.footer-copy {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

/* ────────────────── BACK TO TOP ─────────────────────────── */
#back-to-top {
  position: fixed;
  bottom: 2rem; right: 2rem;
  z-index: 50;
  background: var(--bg-1);
  border: 1px solid var(--border);
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  cursor: pointer;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s, transform 0.3s, border-color 0.2s, color 0.2s, box-shadow 0.2s;
  pointer-events: none;
}
#back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
#back-to-top:hover {
  border-color: var(--bh);
  color: var(--accent);
  box-shadow: 0 0 14px var(--glow);
}

/* ────────────────── RESPONSIVE ─────────────────────────── */
@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-burger { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: rgba(4,8,16,0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem;
    gap: 1rem;
    z-index: 99;
  }
  .nav-links.open a { font-size: 0.95rem; color: var(--text); }

  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .stats-row  { grid-template-columns: repeat(2, 1fr); }
  .proj-grid  { grid-template-columns: 1fr; }
  .skill-terminal { grid-template-columns: 1fr; }
  .pub-metrics { gap: 1rem; }

  .contrib-row { grid-template-columns: 1fr; gap: 0.3rem; }
  .cr-pr { text-align: right; }

  .edu-row { flex-direction: column; align-items: flex-start; gap: 0.25rem; }
}

@media (max-width: 520px) {
  .hero-btns { flex-direction: column; width: 100%; }
  .hbtn { justify-content: center; }
  .hero-rule-wrap { display: none; }
  .sys-status { flex-wrap: wrap; justify-content: center; }
}

/* ────────────────── GRAIN + VIGNETTE ───────────────────── */
.grain {
  position: fixed;
  inset: 0;
  z-index: 998;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='250' height='250'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='250' height='250' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  opacity: 0.038;
}
.grain::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, transparent 40%, rgba(0,0,0,0.68) 100%);
  pointer-events: none;
}

/* ────────────────── MARQUEE ─────────────────────────────── */
.marquee-wrap {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 0;
  margin: 1.4rem 0 1.8rem;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  animation: fadeUp 0.5s var(--ease) 0.9s both;
}
.marquee-inner { display: flex; }
.marquee-track {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  white-space: nowrap;
  flex-shrink: 0;
  padding-right: 0.85rem;
  animation: mq 26s linear infinite;
}
@keyframes mq {
  from { transform: translateX(0); }
  to   { transform: translateX(-100%); }
}
.mi {
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.ms {
  font-size: 0.42rem;
  color: rgba(0,255,178,0.28);
  flex-shrink: 0;
}

/* ────────────────── SCROLL PROGRESS ────────────────────── */
#scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(to right, var(--accent), var(--amber));
  z-index: 200;
  box-shadow: 0 0 10px rgba(0,255,178,0.5);
  transition: width 0.08s linear;
  pointer-events: none;
}

/* ────────────────── CUSTOM CURSOR ──────────────────────── */
@media (pointer: fine) {
  *, *::before, *::after { cursor: none !important; }
}
#cursor {
  position: fixed;
  top: 0; left: 0;
  z-index: 9999;
  pointer-events: none;
  will-change: transform;
}
.cur-h {
  position: absolute;
  width: 16px; height: 1px;
  background: var(--accent);
  top: 0; left: -8px;
  box-shadow: 0 0 5px rgba(0,255,178,0.65);
  transition: width 0.18s var(--ease), left 0.18s var(--ease), background 0.18s;
}
.cur-v {
  position: absolute;
  width: 1px; height: 16px;
  background: var(--accent);
  top: -8px; left: 0;
  box-shadow: 0 0 5px rgba(0,255,178,0.65);
  transition: height 0.18s var(--ease), top 0.18s var(--ease), background 0.18s;
}
#cursor.is-hover .cur-h { width: 22px; left: -11px; }
#cursor.is-hover .cur-v { height: 22px; top: -11px; }
#cursor.is-link .cur-h  { background: var(--amber); box-shadow: 0 0 5px rgba(255,184,0,0.7); }
#cursor.is-link .cur-v  { background: var(--amber); box-shadow: 0 0 5px rgba(255,184,0,0.7); }

/* ────────────────── ACTIVE NAV ──────────────────────────── */
.nav-links a.active { color: var(--accent); }
.nav-links a.active::before { content: '▸ '; font-size: 0.7em; opacity: 0.8; }

/* ────────────────── STAT CELL BRACKETS + BAR ───────────── */
.stat-cell { position: relative; }
.stat-cell::before,
.stat-cell::after {
  content: '';
  position: absolute;
  width: 8px; height: 8px;
  border-color: rgba(0,255,178,0.22);
  border-style: solid;
  transition: border-color 0.3s, width 0.3s, height 0.3s;
}
.stat-cell::before { top: 4px; left: 4px; border-width: 1px 0 0 1px; }
.stat-cell::after  { bottom: 4px; right: 4px; border-width: 0 1px 1px 0; }
.stat-cell:hover::before,
.stat-cell:hover::after {
  border-color: rgba(0,255,178,0.55);
  width: 12px; height: 12px;
}
.stat-bar {
  width: 100%;
  height: 1px;
  background: rgba(0,255,178,0.07);
  margin-top: 0.85rem;
  overflow: hidden;
}
.stat-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(to right, transparent, var(--accent));
  box-shadow: 2px 0 8px var(--accent);
  transition: width 1.4s cubic-bezier(0.4, 0, 0.2, 1) 0.3s;
}