/* ============================================
   TOKENS
   ============================================ */
:root {
  --bg: #0B0E14;
  --bg-raised: #11151D;
  --bg-raised-2: #161B25;
  --ink: #EDE9E0;
  --ink-dim: #9CA3B0;
  --ink-faint: #5B6371;
  --line: #232A36;
  --line-bright: #323B4A;
  --green: #7FFFA1;
  --green-dim: #4FAE6E;
  --amber: #D9A05B;
  --red: #E0654E;

  --font-display: 'IBM Plex Mono', ui-monospace, monospace;
  --font-body: 'Inter', -apple-system, sans-serif;

  --max-w: 1080px;
  --edge: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

/* ============================================
   AMBIENT TEXTURE
   ============================================ */
.grain {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.scanline {
  position: fixed;
  inset: 0;
  z-index: 199;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, rgba(127,255,161,0.015) 50%, transparent 100%);
  background-size: 100% 4px;
  opacity: 0.4;
}

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11,14,20,0.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 16px var(--edge);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--ink);
  flex-shrink: 0;
}

.cursor {
  color: var(--green);
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.nav-links {
  display: flex;
  gap: 28px;
  font-family: var(--font-display);
  font-size: 12.5px;
  letter-spacing: 0.03em;
}

.nav-links a {
  color: var(--ink-dim);
  transition: color 0.2s ease;
  white-space: nowrap;
  position: relative;
}

.nav-links a:hover { color: var(--green); }

.nav-links a.is-active {
  color: var(--green);
}

.nav-links a.is-active .nav-num {
  color: var(--green-dim);
}

.nav-num {
  color: var(--ink-faint);
  margin-right: 6px;
}

.nav-cta {
  font-family: var(--font-display);
  font-size: 12.5px;
  border: 1px solid var(--line-bright);
  padding: 7px 14px;
  border-radius: 3px;
  color: var(--ink);
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.nav-cta:hover {
  border-color: var(--green);
  color: var(--green);
  background: rgba(127,255,161,0.06);
}

@media (max-width: 760px) {
  .nav-links { display: none; }
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 110px var(--edge) 0;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.grid-field {
  position: absolute;
  inset: -10%;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 10%, transparent 75%);
}

/* mouse-reactive spotlight, layered above the base grid */
.grid-spotlight {
  position: absolute;
  inset: -10%;
  background-image:
    linear-gradient(var(--green-dim) 1px, transparent 1px),
    linear-gradient(90deg, var(--green-dim) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0;
  transition: opacity 0.4s ease;
  mask-image: radial-gradient(circle 260px at var(--mx, 50%) var(--my, 30%), black 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(circle 260px at var(--mx, 50%) var(--my, 30%), black 0%, transparent 100%);
}

.hero:hover .grid-spotlight {
  opacity: 0.5;
}

@media (hover: none) {
  .grid-spotlight { display: none; }
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.terminal-block {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
  max-width: 480px;
  margin-bottom: 40px;
  box-shadow: 0 24px 60px -20px rgba(0,0,0,0.6);
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}
.dot.red { background: #4a3530; box-shadow: inset 0 0 0 1px #5a423c; }
.dot.amber { background: #4a3f2a; box-shadow: inset 0 0 0 1px #5a4d34; }
.dot.green { background: #2a4a35; box-shadow: inset 0 0 0 1px #345a3f; }

.term-path {
  font-family: var(--font-display);
  font-size: 11.5px;
  color: var(--ink-faint);
  margin-left: 8px;
}

.term-body {
  padding: 16px 18px 18px;
  font-family: var(--font-display);
  font-size: 13px;
  line-height: 1.85;
  min-height: 150px;
  color: var(--ink-dim);
}

.term-body .prompt { color: var(--green-dim); }
.term-body .out { color: var(--ink); }
.term-body .dim { color: var(--ink-faint); }

.hero-name {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 0.95;
  letter-spacing: -0.01em;
}

.hero-name .line1,
.hero-name .line2 {
  display: block;
  font-size: clamp(48px, 9vw, 104px);
}

.hero-name .line2 {
  color: var(--ink-faint);
  -webkit-text-stroke: 1px var(--ink);
  color: transparent;
}

.blip {
  color: var(--green);
  -webkit-text-stroke: 0;
}

.hero-tag {
  margin-top: 28px;
  max-width: 560px;
  font-size: 17px;
  color: var(--ink-dim);
  line-height: 1.7;
}

.hero-actions {
  margin-top: 36px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.02em;
  padding: 13px 24px;
  border-radius: 4px;
  transition: all 0.2s ease;
  display: inline-block;
}

.btn-primary {
  background: var(--green);
  color: #0B0E14;
  font-weight: 600;
}

.btn-primary:hover {
  background: #97ffb3;
  transform: translateY(-1px);
}

.btn-ghost {
  border: 1px solid var(--line-bright);
  color: var(--ink);
  background: var(--bg);
}

.btn-ghost:hover {
  border-color: var(--ink-dim);
  background: var(--bg-raised);
}

/* ticker */
.ticker-wrap {
  position: relative;
  z-index: 1;
  margin-top: 64px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-raised);
  overflow: hidden;
  white-space: nowrap;
  padding: 14px 0;
}

.ticker-track {
  display: inline-flex;
  align-items: center;
  animation: scroll-left 38s linear infinite;
}

.ticker-wrap:hover .ticker-track {
  animation-play-state: paused;
}

@keyframes scroll-left {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.ticker-item {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--ink-dim);
  padding: 0 18px;
}

.ticker-item b { color: var(--green); font-weight: 600; }

.ticker-sep {
  color: var(--ink-faint);
}

/* ============================================
   SECTIONS — shared
   ============================================ */
.section {
  padding: 100px var(--edge);
  border-bottom: 1px solid var(--line);
}

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 12.5px;
  color: var(--green-dim);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 38px);
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

/* ============================================
   LOG
   ============================================ */
.log-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.log-entry {
  background: var(--bg-raised);
  padding: 32px;
}

.log-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--amber);
  border: 1px solid rgba(217,160,91,0.3);
  background: rgba(217,160,91,0.08);
  padding: 3px 9px;
  border-radius: 3px;
  margin-bottom: 14px;
}

.log-entry p {
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.7;
}

.log-entry strong { color: var(--ink); font-weight: 600; }

@media (max-width: 700px) {
  .log-grid { grid-template-columns: 1fr; }
}

/* ============================================
   PROJECTS
   ============================================ */
.project-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.project {
  background: var(--bg-raised);
  padding: 36px;
  position: relative;
  border-left: 2px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.project[data-accent="green"]:hover { border-left-color: var(--green); }
.project[data-accent="amber"]:hover { border-left-color: var(--amber); }
.project:hover { background: var(--bg-raised-2); }

.project-meta {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--ink-faint);
  margin-bottom: 14px;
}

.project-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--ink);
}

.project-desc {
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.75;
  max-width: 720px;
  margin-bottom: 24px;
}

.project-stats {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-val {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--green);
}

.project[data-accent="amber"] .stat-val { color: var(--amber); }

.stat-label {
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.01em;
}

.project-link {
  display: inline-block;
  margin-top: 22px;
  font-family: var(--font-display);
  font-size: 12.5px;
  color: var(--ink-dim);
  border: 1px solid var(--line-bright);
  padding: 8px 14px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.project-link:hover {
  color: var(--green);
  border-color: var(--green-dim);
  background: rgba(127,255,161,0.06);
}

.project[data-accent="amber"] .project-link:hover {
  color: var(--amber);
  border-color: var(--amber);
  background: rgba(217,160,91,0.08);
}

.project-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.project-links .project-link {
  margin-top: 0;
}

/* ============================================
   RESEARCH
   ============================================ */
.paper-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 40px;
}

.paper-left {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-right: 1px solid var(--line);
  padding-right: 32px;
}

.paper-date {
  font-family: var(--font-display);
  font-size: 12.5px;
  color: var(--green-dim);
}

.paper-journal {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--ink-dim);
  line-height: 1.5;
}

.paper-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 18px;
  color: var(--ink);
}

.paper-desc {
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 24px;
}

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

.tag {
  font-family: var(--font-display);
  font-size: 11.5px;
  border: 1px solid var(--line-bright);
  color: var(--ink-dim);
  padding: 5px 11px;
  border-radius: 3px;
}

@media (max-width: 700px) {
  .paper-card { grid-template-columns: 1fr; padding: 28px; }
  .paper-left {
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding-right: 0;
    padding-bottom: 20px;
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ============================================
   STACK
   ============================================ */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.stack-col h4 {
  font-family: var(--font-display);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--green-dim);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.stack-col li {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--ink-dim);
  padding: 7px 0;
}

@media (max-width: 700px) {
  .stack-grid { grid-template-columns: 1fr; gap: 28px; }
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
  border-bottom: none;
  padding-bottom: 60px;
}

.contact-inner {
  text-align: center;
}

.contact .eyebrow { text-align: center; }

.contact-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 6vw, 56px);
  margin-bottom: 16px;
}

.contact-sub {
  color: var(--ink-dim);
  font-size: 16px;
  margin-bottom: 48px;
}

.contact-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  max-width: 640px;
  margin: 0 auto;
}

.contact-link {
  background: var(--bg-raised);
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  text-align: left;
  transition: background 0.2s ease;
}

.contact-link:hover {
  background: var(--bg-raised-2);
}

.contact-link:hover .contact-value {
  color: var(--green);
}

.contact-label {
  font-family: var(--font-display);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.contact-value {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--ink);
  transition: color 0.2s ease;
  word-break: break-word;
}

@media (max-width: 600px) {
  .contact-links { grid-template-columns: 1fr; }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 28px var(--edge) 40px;
  display: flex;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--ink-faint);
  max-width: var(--max-w);
  margin: 0 auto;
}

/* ============================================
   SCROLL REVEAL
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* focus visibility */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}