:root {
  --bg-color: #fff;
  --text-primary: #000;
  --text-secondary: #71717a;
  --line: #000;
  --line-soft: rgba(0, 0, 0, 0.12);
  --inverse-bg: #000;
  --inverse-text: #fff;
  --stroke-soft: rgba(0, 0, 0, 0.38);
  color: var(--text-primary);
  background: var(--bg-color);
  font-family: Outfit, Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:root[data-theme="dark"] {
  --bg-color: #050505;
  --text-primary: #f7f7f7;
  --text-secondary: #a1a1aa;
  --line: #f7f7f7;
  --line-soft: rgba(255, 255, 255, 0.16);
  --inverse-bg: #f7f7f7;
  --inverse-text: #050505;
  --stroke-soft: rgba(255, 255, 255, 0.42);
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg-color);
  transition: color 0.25s ease, background 0.25s ease;
}

::selection {
  color: var(--bg-color);
  background: var(--text-primary);
}

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

.grain {
  position: fixed;
  inset: 0;
  z-index: 9998;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 0 4vw;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 2vw;
  padding: 2vw 0;
}

.logo {
  color: var(--text-primary);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.toggle-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.toggle-btn {
  min-height: 36px;
  padding: 0 0.9rem;
  color: var(--text-primary);
  cursor: pointer;
  background: var(--bg-color);
  border: 2px solid var(--line);
  border-radius: 999px;
  font-family: Inter, sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.toggle-btn:hover {
  color: var(--inverse-text);
  background: var(--inverse-bg);
  transform: translateY(-2px);
}

.nav-link {
  position: relative;
  display: inline-block;
  overflow: hidden;
  font-family: Inter, sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-link::after {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  content: "";
  background: currentColor;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  transform: scaleX(0);
  transform-origin: 100%;
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: 0;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  min-height: 72vh;
  margin-bottom: 10vw;
  padding-top: 1vw;
}

.hero-subtitle-container {
  margin-bottom: 2vw;
  overflow: hidden;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-family: Inter, sans-serif;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero-title-line {
  overflow: hidden;
}

.hero-title {
  font-size: clamp(4.5rem, 15vw, 16rem);
  font-weight: 800;
  line-height: 0.86;
  letter-spacing: -0.065em;
  text-transform: uppercase;
}

.hero-desc {
  max-width: 900px;
  margin-top: 4vw;
  font-family: Inter, sans-serif;
  font-size: clamp(1.15rem, 2vw, 1.8rem);
  font-weight: 400;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
}

.solid-btn,
.line-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 1.25rem;
  border: 2px solid var(--line);
  border-radius: 999px;
  font-family: Inter, sans-serif;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.solid-btn {
  color: var(--inverse-text);
  background: var(--inverse-bg);
}

.line-btn {
  color: var(--text-primary);
  background: var(--bg-color);
}

.solid-btn:hover,
.line-btn:hover {
  transform: translateY(-3px);
}

.marquee-container {
  display: flex;
  width: 100vw;
  margin-bottom: 15vw;
  margin-left: -4vw;
  padding: 1vw 0;
  overflow: hidden;
  color: var(--inverse-text);
  white-space: nowrap;
  background: var(--inverse-bg);
}

.marquee-content {
  display: flex;
  font-size: clamp(1.5rem, 3vw, 3rem);
  font-weight: 800;
  letter-spacing: 0.05em;
  animation: marquee 24s linear infinite;
}

.marquee-content span {
  padding-right: 2vw;
}

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

.info-section,
.list-section,
.links-section {
  width: 100%;
  margin-bottom: 15vw;
}

.section-header {
  padding-bottom: 1rem;
  margin-bottom: 4vw;
  border-bottom: 2px solid var(--line);
}

.section-title {
  font-size: clamp(2.4rem, 5vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  text-transform: uppercase;
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 2px solid var(--line);
}

.profile-card {
  min-height: 220px;
  padding: 3vw 2vw;
  border-right: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}

.profile-card:nth-child(3) {
  border-right: 0;
}

.profile-card-wide {
  grid-column: 1 / -1;
  min-height: auto;
  border-right: 0;
}

.profile-label {
  display: block;
  margin-bottom: 2rem;
  color: var(--text-secondary);
  font-family: Inter, sans-serif;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.profile-card strong {
  display: block;
  font-size: clamp(2rem, 4vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  text-transform: uppercase;
}

.profile-card p {
  max-width: 900px;
  font-family: Inter, sans-serif;
  font-size: clamp(1.1rem, 2vw, 1.8rem);
  line-height: 1.5;
}

.project-showcase {
  border-top: 2px solid var(--line);
}

.project-item {
  padding: 4vw 0;
  border-bottom: 2px solid var(--line);
}

.project-item h3 {
  margin-bottom: 2vw;
  font-size: clamp(3rem, 8vw, 9rem);
  font-weight: 800;
  line-height: 0.86;
  letter-spacing: -0.065em;
  text-transform: uppercase;
}

.project-item p {
  max-width: 760px;
  color: var(--text-secondary);
  font-family: Inter, sans-serif;
  font-size: clamp(1.1rem, 2vw, 1.8rem);
  line-height: 1.5;
}

.project-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  margin-top: 2rem;
  padding: 0 1.25rem;
  color: var(--inverse-text);
  background: var(--inverse-bg);
  border: 2px solid var(--line);
  border-radius: 999px;
  font-family: Inter, sans-serif;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-link:hover {
  transform: translateY(-3px);
}

.interactive-list {
  display: flex;
  flex-direction: column;
}

.list-item {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3vw 0;
  border-bottom: 1px solid var(--line-soft);
}

.list-item:first-child {
  border-top: 2px solid var(--line);
}

.list-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 1rem;
}

.list-item-title {
  color: transparent;
  font-size: clamp(3rem, 8vw, 8rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.055em;
  text-transform: uppercase;
  -webkit-text-stroke: 1px var(--stroke-soft);
  transition: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.list-item:hover .list-item-title {
  color: var(--text-primary);
  -webkit-text-stroke: 0 var(--text-primary);
  transform: translateX(2vw);
}

.badge {
  flex: 0 0 auto;
  padding: 0.35rem 0.85rem;
  color: var(--inverse-text);
  background: var(--inverse-bg);
  border-radius: 999px;
  font-family: Inter, sans-serif;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.list-item-desc {
  max-width: 80%;
  padding-top: 1.2vw;
  color: var(--text-secondary);
  font-family: Inter, sans-serif;
  font-size: clamp(1rem, 1.5vw, 1.7rem);
  line-height: 1.5;
}

.link-list {
  border-top: 2px solid var(--line);
}

.link-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.28fr) 1fr;
  gap: 2rem;
  align-items: center;
  padding: 2.2vw 0;
  border-bottom: 1px solid var(--line-soft);
  transition: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.link-row:hover {
  padding-left: 2vw;
  color: var(--inverse-text);
  background: var(--inverse-bg);
}

.link-row span {
  font-family: Inter, sans-serif;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.link-row strong {
  overflow-wrap: anywhere;
  font-size: clamp(1.6rem, 4vw, 4.6rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.footer-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  padding: 10vw 0 5vw;
  border-top: 2px solid var(--line);
}

.massive-link {
  position: relative;
  display: inline-block;
  overflow: hidden;
  font-size: clamp(3.5rem, 11vw, 13rem);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.065em;
  text-transform: uppercase;
}

.massive-link span {
  display: inline-block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.massive-link-hover {
  position: absolute;
  top: 100%;
  left: 0;
  color: var(--bg-color);
  -webkit-text-stroke: 2px var(--text-primary);
}

.massive-link:hover .massive-link-normal,
.massive-link:hover .massive-link-hover {
  transform: translateY(-100%);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  width: 100%;
  margin-top: 10vw;
  font-family: Inter, sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
}

@media (max-width: 760px) {
  .app-container {
    padding: 0 5vw;
  }

  .navbar,
  .nav-links,
  .toggle-group,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
  }

  .toggle-group {
    width: 100%;
  }

  .toggle-btn {
    width: 100%;
  }

  .hero {
    min-height: 70vh;
  }

  .hero-actions,
  .solid-btn,
  .line-btn {
    width: 100%;
  }

  .profile-grid,
  .link-row {
    grid-template-columns: 1fr;
  }

  .profile-card,
  .profile-card:nth-child(3) {
    border-right: 0;
  }

  .list-item-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .list-item-desc {
    max-width: 100%;
  }
}