:root {
  --bg: #0e0d0b;
  --paper: #171512;
  --ink: #f2ebe0;
  --muted: #8f877c;
  --accent: #d4a574;
  --line: #2a2620;
  --display: "Fraunces", "Songti SC", serif;
  --sans: "Outfit", "PingFang SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0.01em;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 8;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

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

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 6vw;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav__mark {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: 0.16em;
  font-size: 0.92rem;
}

.nav__links {
  display: flex;
  gap: 1.8rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.nav__links a:hover {
  color: var(--ink);
}

.nav__toggle {
  display: none;
  width: 2.2rem;
  height: 2.2rem;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav__toggle span {
  display: block;
  height: 1px;
  background: var(--ink);
  margin: 6px 0;
}

.hero,
.section,
.footer {
  padding-left: 6vw;
  padding-right: 6vw;
}

.hero {
  min-height: calc(100vh - 4.2rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 8vh;
  padding-bottom: 10vh;
  border-bottom: 1px solid var(--line);
}

.hero__meta {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.hero__name {
  margin: 1.4rem 0 1.6rem;
  display: grid;
  gap: 0.2rem;
}

.hero__cn {
  font-family: var(--display);
  font-size: clamp(3.4rem, 9vw, 8.2rem);
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.hero__en {
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 300;
  color: var(--muted);
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.hero__lead {
  max-width: 28rem;
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  color: #d8d0c4;
  font-weight: 300;
}

.hero__foot {
  margin-top: 3rem;
  display: flex;
  align-items: center;
  gap: 1.6rem;
  flex-wrap: wrap;
}

.status {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.status__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #7d9b8a;
  box-shadow: 0 0 0 6px color-mix(in srgb, #7d9b8a 18%, transparent);
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.72rem 1.2rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
}

.btn:hover {
  background: var(--accent);
  color: var(--bg);
}

.section {
  padding-top: 7.5rem;
  padding-bottom: 7.5rem;
  border-bottom: 1px solid var(--line);
}

.section__head {
  margin-bottom: 3.2rem;
  max-width: 36rem;
}

.kicker {
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.section__head h2 {
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.about__grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 4rem;
  align-items: start;
}

.about__body {
  font-size: 1.08rem;
  color: #d8d0c4;
  font-weight: 300;
}

.facts {
  list-style: none;
  border-top: 1px solid var(--line);
}

.facts li {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

.facts span {
  color: var(--muted);
}

.projects {
  list-style: none;
}

.project {
  border-top: 1px solid var(--line);
}

.project:last-child {
  border-bottom: 1px solid var(--line);
}

.project__link {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  gap: 1.5rem;
  align-items: center;
  padding: 2rem 0;
}

.project__idx {
  font-family: var(--display);
  color: var(--muted);
  font-size: 1.15rem;
}

.project__body h3 {
  font-family: var(--display);
  font-size: 1.7rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
}

.project__body p {
  color: #c9c0b3;
  font-weight: 300;
  max-width: 38rem;
}

.project__tags {
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.project__go {
  color: var(--accent);
  font-size: 1.4rem;
  transform: translateX(0);
  transition: transform 0.25s ease;
}

.project__link:hover .project__go {
  transform: translateX(6px);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
}

.skills__grid article {
  padding: 1.4rem 1.2rem;
  background: var(--paper);
  border: 1px solid var(--line);
  min-height: 10.5rem;
}

.skills__grid h3 {
  font-family: var(--display);
  font-size: 1.25rem;
  margin-bottom: 0.7rem;
}

.skills__grid p {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 300;
}

.contact__box {
  max-width: 36rem;
}

.contact__lead {
  color: #d8d0c4;
  font-weight: 300;
  margin-bottom: 1.4rem;
}

.mail {
  display: inline-block;
  font-family: var(--display);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  color: var(--accent);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  margin-bottom: 1.1rem;
}

.copy {
  display: block;
  margin-bottom: 2.4rem;
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
}

.copy:hover,
.copy.is-done {
  color: var(--ink);
}

.social {
  display: flex;
  gap: 1.6rem;
  list-style: none;
  color: var(--muted);
}

.social a:hover {
  color: var(--ink);
}

.footer {
  display: flex;
  justify-content: space-between;
  padding-top: 1.6rem;
  padding-bottom: 1.8rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: rise 0.8s ease forwards;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 860px) {
  .about__grid,
  .skills__grid {
    grid-template-columns: 1fr 1fr;
  }

  .nav__toggle {
    display: block;
  }

  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 0.4rem 6vw 1rem;
  }

  .nav.is-open .nav__links {
    display: flex;
  }

  .nav__links a {
    padding: 0.7rem 0;
    border-top: 1px solid var(--line);
  }

  .project__link {
    grid-template-columns: 2.4rem 1fr;
  }

  .project__go {
    display: none;
  }
}

@media (max-width: 560px) {
  .about__grid,
  .skills__grid {
    grid-template-columns: 1fr;
  }

  .hero__foot {
    gap: 1rem;
  }
}