:root {
  color-scheme: light;
  --ink: #0e1118;
  --ink-soft: #1d2333;
  --muted: #4b5566;
  --accent: #1f6bff;
  --accent-bright: #5bb4ff;
  --accent-dark: #1656cf;
  --surface: #f3f6fb;
  --surface-strong: #e1e7f0;
  --line: #cbd4e1;
  --shadow: rgba(17, 17, 21, 0.12);
  --radius: 18px;
  --max-width: 1080px;
  --title-font: "Fraunces", "Times New Roman", serif;
  --body-font: "Space Grotesk", "Trebuchet MS", sans-serif;
}

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

body {
  font-family: var(--body-font);
  color: var(--ink);
  background: radial-gradient(circle at top, #f6f9ff 0%, #eef3fb 45%, #e2e9f5 100%);
  line-height: 1.65;
  position: relative;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

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

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.12'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
  z-index: 1;
}

.grid {
  position: fixed;
  inset: -20%;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(12, 18, 33, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12, 18, 33, 0.16) 1px, transparent 1px),
    radial-gradient(circle, rgba(31, 107, 255, 0.18) 1px, transparent 1px),
    repeating-linear-gradient(135deg, rgba(31, 107, 255, 0.08) 0 1px, transparent 1px 12px),
    radial-gradient(circle at 20% 30%, rgba(56, 148, 255, 0.22), transparent 55%),
    radial-gradient(circle at 80% 20%, rgba(56, 148, 255, 0.16), transparent 50%);
  background-size: 90px 90px, 90px 90px, 24px 24px, 14px 14px, 100% 100%, 100% 100%;
  mask-image: radial-gradient(circle at 30% 20%, rgba(0, 0, 0, 0.95), transparent 70%);
  opacity: 0.9;
  z-index: 0;
  animation: gridDrift 26s linear infinite, gridPulse 8s ease-in-out infinite;
}

.intro-beam {
  position: fixed;
  inset: -20%;
  pointer-events: none;
  z-index: 2;
  background: linear-gradient(
    120deg,
    transparent 35%,
    rgba(31, 107, 255, 0.5) 48%,
    rgba(91, 180, 255, 0.6) 50%,
    rgba(31, 107, 255, 0.5) 52%,
    transparent 65%
  );
  mix-blend-mode: screen;
  opacity: 0;
  animation: beamSweep 1.4s ease-out 0.2s forwards;
}

body::before,
body::after {
  content: "";
  position: absolute;
  width: 42vw;
  height: 42vw;
  background: radial-gradient(circle, rgba(56, 148, 255, 0.26), rgba(56, 148, 255, 0));
  filter: blur(10px);
  z-index: 0;
  animation: floatGlow 16s ease-in-out infinite;
}

body::before {
  top: -12vw;
  left: -8vw;
}

body::after {
  bottom: -16vw;
  right: -10vw;
  animation-delay: -6s;
  background: radial-gradient(circle, rgba(33, 96, 210, 0.22), rgba(33, 96, 210, 0));
}

.container {
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(246, 243, 238, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav {
  display: flex;
  gap: 18px;
  align-items: center;
  font-size: 0.95rem;
}

.nav a {
  padding: 8px 10px;
  border-radius: 999px;
  transition: all 0.2s ease;
}

.nav a:hover {
  background: var(--surface-strong);
}

.nav .cta {
  background: var(--ink);
  color: #fff;
}

.hero {
  padding: 100px 0 86px;
  position: relative;
}

.hero-grid {
  display: grid;
  gap: 48px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--muted);
}


h1,
h2,
h3 {
  font-family: var(--title-font);
}

h1 {
  font-size: clamp(2.25rem, 2.1vw + 1.6rem, 3.4rem);
  line-height: 1.12;
  margin: 16px 0 22px;
  background: linear-gradient(110deg, #0e1118, #1f6bff 40%, #5bb4ff 60%, #0e1118 82%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  color: transparent;
  animation: titleSweep 7s ease infinite;
}

h2 {
  font-size: clamp(2rem, 1.5vw + 1.6rem, 3rem);
  margin-bottom: 14px;
}

h3 {
  font-size: 1.4rem;
}

.lead {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 560px;
}

.hero-actions {
  margin: 28px 0 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.button.primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-bright));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 14px 28px rgba(31, 107, 255, 0.35);
  animation: buttonPulse 3.2s ease-in-out infinite;
}

.button.primary:hover {
  background: linear-gradient(120deg, #1452c8, #1f6bff);
  border-color: transparent;
  transform: translateY(-3px) scale(1.02);
}

.button.ghost:hover {
  background: var(--surface-strong);
}

.hero-metrics {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.hero-metrics div {
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 16px;
  min-width: 160px;
  box-shadow: 0 10px 18px rgba(14, 17, 24, 0.06);
}

.metric {
  font-size: 1.6rem;
  font-weight: 700;
}

.label {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
}

.hero-card {
  background: #0f1626;
  color: #fff;
  padding: 28px;
  border-radius: var(--radius);
  box-shadow: 0 24px 42px rgba(15, 22, 38, 0.28);
  display: flex;
  flex-direction: column;
  gap: 22px;
  transform: rotate(-1.2deg);
  animation: cardFloat 6s ease-in-out infinite;
}

.hero-card__top p {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.6);
}

.hero-card__body ul {
  list-style: none;
  margin-top: 14px;
}

.hero-card__body li {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.7);
}

.hero-card__footer a {
  color: #fff;
  text-decoration: underline;
}

section {
  padding: 78px 0;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.split {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  align-items: center;
}

.about {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.highlight {
  background: var(--accent);
  color: #fff;
  padding: 0 6px;
  border-radius: 6px;
}

.about-stack {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
}

.chip {
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  text-align: center;
  font-weight: 600;
  position: relative;
  overflow: hidden;
  animation: chipFloat 5s ease-in-out infinite;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.chip:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 10px 18px rgba(31, 107, 255, 0.2);
}

.chip::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent, rgba(31, 107, 255, 0.16), transparent);
  transform: translateX(-120%);
  animation: chipSweep 6s ease-in-out infinite;
}

.chip:nth-child(2) {
  animation-delay: -0.6s;
}

.chip:nth-child(3) {
  animation-delay: -1.2s;
}

.chip:nth-child(4) {
  animation-delay: -1.8s;
}

.chip:nth-child(5) {
  animation-delay: -2.4s;
}

.chip:nth-child(6) {
  animation-delay: -3s;
}

.chip:nth-child(7) {
  animation-delay: -3.6s;
}

.section-header {
  margin-bottom: 26px;
  max-width: 640px;
}

.card-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.featured {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  padding: 28px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(31, 107, 255, 0.12), rgba(255, 255, 255, 0.92));
  border: 1px solid var(--line);
  box-shadow: 0 20px 36px rgba(17, 17, 21, 0.14);
  margin-bottom: 30px;
}

.featured-copy h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.featured-copy ul {
  list-style: none;
  margin: 16px 0;
  color: var(--muted);
}

.featured-copy li {
  margin-bottom: 8px;
  position: relative;
  padding-left: 18px;
}

.featured-copy li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.featured-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.system-map {
  position: relative;
  margin: 18px 0 10px;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(31, 107, 255, 0.08), rgba(255, 255, 255, 0.9));
  height: 200px;
  overflow: hidden;
}

.system-map svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.system-map .line {
  stroke: rgba(14, 17, 24, 0.18);
  stroke-width: 2;
  transition: stroke 0.2s ease, stroke-width 0.2s ease;
}

.system-label {
  position: absolute;
  top: 12px;
  left: 16px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.node {
  position: absolute;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border 0.2s ease;
}

.node:hover,
.node:focus-visible {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 10px 18px rgba(31, 107, 255, 0.22);
}

.node .tooltip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  transform: translateX(-50%) translateY(6px);
  background: #0f1626;
  color: #fff;
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.node:hover .tooltip,
.node:focus-visible .tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.node.is-open .tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.node-frontend {
  left: 18px;
  top: 46px;
}

.node-auth {
  left: 140px;
  top: 46px;
}

.node-api {
  left: 265px;
  top: 46px;
}

.node-worker {
  left: 210px;
  top: 126px;
}

.node-sandbox {
  left: 70px;
  top: 126px;
}

.node-db {
  left: 375px;
  top: 126px;
}

.system-map[data-active="frontend"] .line-frontend-auth,
.system-map[data-active="auth"] .line-frontend-auth,
.system-map[data-active="auth"] .line-auth-api,
.system-map[data-active="api"] .line-auth-api,
.system-map[data-active="api"] .line-api-worker,
.system-map[data-active="worker"] .line-api-worker,
.system-map[data-active="worker"] .line-worker-sandbox,
.system-map[data-active="sandbox"] .line-worker-sandbox,
.system-map[data-active="api"] .line-api-db,
.system-map[data-active="db"] .line-api-db {
  stroke: var(--accent);
  stroke-width: 2.6;
}

.featured-media {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 12px 24px rgba(17, 17, 21, 0.12);
}

.media-grid {
  display: grid;
  gap: 0;
}

.media-grid figure {
  margin: 0;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.media-grid figure:last-child {
  border-bottom: none;
}

.media-grid img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.2s ease;
}

.media-grid img:hover {
  transform: scale(1.01);
}

.media-grid figcaption {
  padding: 10px 12px;
  font-size: 0.85rem;
  color: var(--muted);
  background: var(--surface);
}

.media-grid img {
  cursor: pointer;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 24, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 20;
  padding: 24px;
}

.modal.is-open {
  opacity: 1;
  visibility: visible;
}

.modal img {
  max-width: min(1100px, 92vw);
  max-height: 82vh;
  border-radius: 16px;
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  background: #fff;
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
}

.badge {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(31, 107, 255, 0.16);
  color: var(--accent-dark);
  margin-bottom: 12px;
}

.card {
  padding: 22px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 12px 24px var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card a {
  color: var(--accent);
  font-weight: 600;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 32px rgba(17, 17, 21, 0.18);
}

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

.tags span {
  background: var(--surface-strong);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  gap: 12px;
  grid-template-columns: 80px 1fr;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
}

.timeline-item .date {
  font-weight: 700;
  color: var(--accent);
}

.resume-grid {
  display: grid;
  gap: 26px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
}

.resume-list {
  display: grid;
  gap: 20px;
}

.resume-list ul {
  list-style: none;
  margin-top: 8px;
  color: var(--muted);
}

.contact {
  background: var(--ink);
  color: #fff;
}

.contact-card {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
}

.contact-actions {
  display: flex;
  gap: 12px;
}

.site-footer {
  padding: 26px 0 34px;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 780px) {
  .nav {
    display: none;
  }

  .hero {
    padding: 80px 0 60px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  h1 {
    font-size: clamp(2rem, 5vw + 1rem, 2.8rem);
  }

  .hero-grid {
    gap: 32px;
  }

  .hero-metrics div {
    min-width: 140px;
  }

  .featured {
    padding: 22px;
  }

  .system-map {
    height: 190px;
    padding: 16px;
  }

  .system-map svg {
    display: block;
  }

  .node {
    position: absolute;
    display: inline-flex;
    font-size: 0.75rem;
    padding: 6px 10px;
  }

  .node .tooltip {
    left: 50%;
    bottom: calc(100% + 8px);
    transform: translateX(-50%) translateY(6px);
    white-space: normal;
    max-width: 160px;
    text-align: center;
    display: block;
    opacity: 0;
  }

  .node.is-open .tooltip {
    opacity: 1;
  }

  .node-frontend {
    left: 4%;
    top: 28%;
  }

  .node-auth {
    left: 28%;
    top: 28%;
  }

  .node-api {
    left: 52%;
    top: 28%;
  }

  .node-worker {
    left: 38%;
    top: 64%;
  }

  .node-sandbox {
    left: 14%;
    top: 64%;
  }

  .node-db {
    left: 74%;
    top: 64%;
  }

  .media-grid figcaption {
    font-size: 0.8rem;
  }

  .contact-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero,
.about,
.projects,
.collaborations,
.writing,
.resume,
.contact {
  animation: fadeInUp 0.7s ease both;
}

@keyframes titleSweep {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes cardFloat {
  0%,
  100% {
    transform: translateY(0) rotate(-1.2deg);
  }
  50% {
    transform: translateY(-10px) rotate(-0.4deg);
  }
}

@keyframes floatGlow {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(6vw, -4vw);
  }
}

@keyframes gridDrift {
  0% {
    transform: translate3d(0, 0, 0) rotate(0.2deg);
  }
  100% {
    transform: translate3d(-120px, -120px, 0) rotate(0.2deg);
  }
}

@keyframes gridPulse {
  0%,
  100% {
    opacity: 0.85;
  }
  50% {
    opacity: 1;
  }
}

@keyframes beamSweep {
  0% {
    opacity: 0;
    transform: translateX(-40%) rotate(0.5deg);
  }
  30% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateX(40%) rotate(0.5deg);
  }
}

@keyframes buttonPulse {
  0%,
  100% {
    box-shadow: 0 12px 26px rgba(31, 107, 255, 0.28);
  }
  50% {
    box-shadow: 0 18px 34px rgba(31, 107, 255, 0.5);
  }
}

@keyframes chipFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

@keyframes chipSweep {
  0%,
  75% {
    transform: translateX(-120%);
  }
  100% {
    transform: translateX(120%);
  }
}