:root {
  --bg: #090a0f;
  --bg-alt: #0d0f16;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-border: rgba(255, 255, 255, 0.08);
  --text: #e7e9ee;
  --text-dim: #8b93a3;
  --accent: #6ee7b7;
  --accent-2: #60a5fa;
  --accent-3: #c084fc;
  --border: #1c2029;
  --radius: 14px;
  --max-width: 1040px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

/* Subtle technical grid backdrop across the whole page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
}

::selection {
  background: var(--accent);
  color: #06110c;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--accent-2), var(--accent-3));
  border-radius: 999px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: var(--accent-2);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code, .mono {
  font-family: var(--mono);
}

/* Scroll progress bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  z-index: 100;
  transition: width 0.1s ease-out;
}

/* Reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(9, 10, 15, 0.72);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: -0.02em;
}

.logo-bracket {
  color: var(--accent);
}

.logo:hover {
  text-decoration: none;
  color: var(--accent);
}

.nav {
  display: flex;
  gap: 24px;
}

.nav a {
  color: var(--text-dim);
  font-size: 0.95rem;
  font-family: var(--mono);
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 1px;
  background: var(--accent);
  transition: width 0.25s ease;
}

.nav a:hover {
  color: var(--text);
  text-decoration: none;
}

.nav a:hover::after {
  width: 100%;
}

/* Hero */
.hero {
  position: relative;
  padding: 120px 0 110px;
  overflow: hidden;
}

#bg-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  mask-image: linear-gradient(to bottom, #000 60%, transparent 100%);
  opacity: 0.8;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  font-family: var(--mono);
  color: var(--accent);
  letter-spacing: 0.04em;
  font-size: 0.85rem;
  font-weight: 500;
  margin: 0 0 14px;
}

.hero h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.4rem);
  line-height: 1.1;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(90deg, var(--accent), var(--accent-2) 55%, var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  color: var(--text-dim);
  font-size: 1.15rem;
  margin: 0 0 12px;
  min-height: 1.6em;
}

.lede-sub {
  font-size: 1.02rem;
  max-width: 46ch;
  margin: 0 0 32px;
}

.typewriter {
  font-family: var(--mono);
  color: var(--text);
  font-weight: 500;
}

.typewriter-cursor {
  display: inline-block;
  background: var(--accent);
  width: 8px;
  margin-left: 2px;
  animation: blink 1s step-end infinite;
}

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

.cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #06110c;
}

.btn-primary:hover {
  box-shadow: 0 8px 24px -8px rgba(110, 231, 183, 0.5);
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

/* Terminal widget */
.hero-visual {
  position: relative;
  z-index: 1;
}

.terminal {
  background: rgba(13, 15, 22, 0.85);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(12px);
  overflow: hidden;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--surface-border);
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}

.dot-red {
  background: #ff5f56;
}

.dot-yellow {
  background: #ffbd2e;
}

.dot-green {
  background: #27c93f;
}

.terminal-title {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.terminal-body {
  padding: 20px;
  font-family: var(--mono);
  font-size: 0.9rem;
}

.terminal-body p {
  margin: 0 0 10px;
}

.prompt {
  color: var(--accent);
  margin-right: 8px;
}

.output {
  color: var(--text-dim);
}

.term-cursor {
  display: inline-block;
  background: var(--text);
  width: 8px;
  animation: blink 1s step-end infinite;
}

/* Sections */
.section {
  padding: 80px 0;
  border-top: 1px solid var(--border);
  position: relative;
}

.section-alt {
  background: var(--bg-alt);
}

.section h2 {
  font-size: 1.8rem;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.section-index {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 500;
}

.section-lede {
  color: var(--text-dim);
  margin: 0 0 32px;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(110, 231, 183, 0.4);
  box-shadow: 0 16px 40px -20px rgba(110, 231, 183, 0.25);
}

.card-index {
  display: block;
  font-family: var(--mono);
  color: var(--text-dim);
  font-size: 0.8rem;
  margin-bottom: 12px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.card-placeholder {
  border-style: dashed;
}

.mono-heading {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 500;
  margin: 0 0 20px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  border: 1px solid var(--surface-border);
  background: var(--surface);
  border-radius: 999px;
  padding: 6px 14px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.tag:hover {
  color: var(--accent);
  border-color: rgba(110, 231, 183, 0.4);
}

.tag-sm {
  padding: 4px 10px;
  font-size: 0.72rem;
}

/* Code editor (Projects) */
.code-editor {
  background: rgba(13, 15, 22, 0.85);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(12px);
  overflow: hidden;
  margin-bottom: 32px;
}

.editor-tabs {
  display: flex;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--surface-border);
}

.editor-tab {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  padding: 12px 18px;
  border-right: 1px solid var(--surface-border);
}

.editor-tab.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.editor-body {
  padding: 22px 24px;
  overflow-x: auto;
}

.editor-body pre {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.88rem;
  line-height: 1.7;
}

.tok-comment {
  color: var(--text-dim);
  font-style: italic;
}

.tok-key {
  color: var(--accent-3);
}

.tok-var {
  color: var(--accent-2);
}

.tok-string {
  color: var(--accent);
}

.tok-fn {
  color: var(--accent-2);
}

.tok-punct {
  color: var(--text-dim);
}

/* Repo cards */
.repo-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  color: var(--text-dim);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-dim);
}

.status-planning .status-dot {
  background: var(--accent-2);
  box-shadow: 0 0 0 0 rgba(96, 165, 250, 0.6);
  animation: pulse 2s infinite;
}

.status-idea .status-dot {
  background: var(--accent-3);
  box-shadow: 0 0 0 0 rgba(192, 132, 252, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(110, 231, 183, 0.45);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(110, 231, 183, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(110, 231, 183, 0);
  }
}

.repo-card .tag-row {
  margin-top: 14px;
}

/* About grid */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}

/* Interest chips */
.interest-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.interest-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 14px 6px 6px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), border-color 0.25s ease,
    box-shadow 0.25s ease, color 0.25s ease;
}

.chip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.9rem;
}

.interest-chip:hover {
  transform: translateY(-3px) scale(1.04);
  color: var(--text);
  border-color: rgba(110, 231, 183, 0.5);
  box-shadow: 0 10px 24px -12px rgba(110, 231, 183, 0.4);
}

/* Achievements (badge shelf) */
.achievements {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 24px;
}

.badge-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  perspective: 800px;
}

.badge-card {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--surface-border);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.01));
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transform-style: preserve-3d;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.badge-card:hover {
  border-color: var(--badge-color, var(--accent));
  box-shadow: 0 16px 32px -18px var(--badge-color, var(--accent));
}

.badge-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -150%;
  width: 60%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.16), transparent);
  transform: skewX(-20deg);
  transition: left 0.7s ease;
  pointer-events: none;
}

.badge-card:hover::before {
  left: 150%;
}

.badge-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  border: 1px solid var(--badge-color, var(--accent));
  box-shadow: 0 0 16px -3px var(--badge-color, var(--accent));
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 70%);
}

.badge-title {
  margin: 0;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text);
}

.badge-sub {
  margin: 0;
  font-size: 0.74rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.badge-nasa {
  --badge-color: #c084fc;
}

.badge-gold {
  --badge-color: #fbbf24;
}

.badge-startup {
  --badge-color: #fb923c;
}

.badge-pg {
  --badge-color: #60a5fa;
}

.badge-mondelez {
  --badge-color: #f472b6;
}

.badge-duo {
  --badge-color: #6ee7b7;
}

/* Contact cards */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 20px;
  color: var(--text);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.contact-card:hover {
  text-decoration: none;
  transform: translateY(-4px);
  border-color: rgba(96, 165, 250, 0.4);
  box-shadow: 0 16px 40px -20px rgba(96, 165, 250, 0.3);
}

.contact-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-2);
}

.contact-icon svg {
  width: 18px;
  height: 18px;
}

.contact-text {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.contact-label {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--mono);
}

.contact-value {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contact-arrow {
  color: var(--text-dim);
  transition: transform 0.2s ease, color 0.2s ease;
}

.contact-card:hover .contact-arrow {
  transform: translateX(4px);
  color: var(--accent-2);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer-inner {
  color: var(--text-dim);
  font-size: 0.9rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-tech {
  font-family: var(--mono);
  font-size: 0.78rem;
  opacity: 0.7;
}

/* Responsive */
@media (max-width: 860px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 96px 0 72px;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .badge-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .typewriter-cursor,
  .term-cursor {
    animation: none;
  }
}