:root {
  color-scheme: light;
  --ink: #18302f;
  --muted: rgba(24, 48, 47, 0.66);
  --faint: rgba(24, 48, 47, 0.09);
  --line: rgba(24, 48, 47, 0.13);
  --paper: #fbfff9;
  --leaf: #52c9a2;
  --sky: #6cb8ff;
  --sun: #ffd166;
  --rose: #ff8a80;
  --glass: rgba(255, 255, 255, 0.68);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans SC", "Hiragino Sans GB", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 12%, rgba(108, 184, 255, 0.25), transparent 28rem),
    radial-gradient(circle at 88% 18%, rgba(82, 201, 162, 0.24), transparent 30rem),
    linear-gradient(135deg, #fbfff9 0%, #eefbf8 48%, #fff8ef 100%);
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(24, 48, 47, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 48, 47, 0.04) 1px, transparent 1px);
  background-size: 78px 78px;
  mask-image: linear-gradient(to bottom, black, transparent 86%);
}

#space {
  position: fixed;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.site-header,
main {
  position: relative;
  z-index: 2;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 18px;
  left: clamp(16px, 4vw, 48px);
  right: clamp(16px, 4vw, 48px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 20px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  box-shadow: 0 18px 50px rgba(55, 117, 111, 0.14);
  backdrop-filter: blur(18px);
  pointer-events: auto;
}

a {
  color: inherit;
  text-decoration: none;
  pointer-events: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  font-size: 15px;
  font-weight: 900;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: linear-gradient(135deg, var(--leaf), var(--sky));
  font-size: 12px;
  letter-spacing: 0;
  box-shadow: 0 10px 22px rgba(82, 201, 162, 0.34);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 4vw, 38px);
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.nav-links a,
.section-heading a,
.contact a,
.hero-actions a {
  transition: transform 180ms ease, color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.nav-links a:hover,
.section-heading a:hover {
  color: var(--ink);
}

.hero-actions a:hover,
.contact a:hover {
  transform: translateY(-2px);
}

.lang-switch {
  justify-self: end;
  display: inline-grid;
  grid-template-columns: repeat(3, 42px);
  width: 126px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  pointer-events: auto;
}

.lang-switch a,
.lang-switch button {
  display: grid;
  min-width: 0;
  height: 30px;
  place-items: center;
  border: 0;
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  font: inherit;
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
}

.lang-switch a.active,
.lang-switch button.active {
  color: white;
  background: #18302f;
}

.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(250px, 0.62fr);
  align-items: end;
  gap: clamp(30px, 5vw, 78px);
  padding: 138px clamp(18px, 6vw, 88px) 72px;
}

.hero-copy {
  max-width: 880px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(74px, 17vw, 208px);
  line-height: 0.82;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero-subtitle {
  max-width: 710px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: clamp(21px, 3vw, 34px);
  line-height: 1.25;
}

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

.primary-action,
.secondary-action {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 24px;
  font-weight: 900;
}

.primary-action {
  color: white;
  background: #18302f;
  box-shadow: 0 18px 34px rgba(24, 48, 47, 0.2);
}

.secondary-action {
  border: 1px solid rgba(24, 48, 47, 0.14);
  background: rgba(255, 255, 255, 0.72);
}

.hero-meta {
  display: grid;
  gap: 12px;
  align-self: end;
}

.hero-meta div {
  min-height: 116px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 8px;
  background: var(--glass);
  box-shadow: 0 18px 48px rgba(55, 117, 111, 0.12);
  backdrop-filter: blur(18px);
}

.hero-meta span {
  display: block;
  margin-bottom: 8px;
  font-size: clamp(30px, 5vw, 48px);
  font-weight: 950;
  line-height: 1;
}

.hero-meta p {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.ticker {
  position: relative;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: max-content;
  gap: 36px;
  overflow: hidden;
  border-block: 1px solid var(--line);
  padding: 18px 0;
  color: rgba(24, 48, 47, 0.46);
  font-size: clamp(20px, 3vw, 42px);
  font-weight: 950;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.34);
}

.ticker span {
  animation: drift 18s linear infinite;
}

.section {
  padding: clamp(86px, 12vw, 160px) clamp(18px, 6vw, 88px);
}

.section-kicker,
.contact p {
  margin: 0 0 20px;
  color: #338a73;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.intro {
  max-width: 1120px;
}

.intro h2,
.stack h2,
.contact h2 {
  max-width: 980px;
  margin-bottom: 24px;
  font-size: clamp(38px, 7vw, 94px);
  line-height: 0.99;
  letter-spacing: 0;
  text-wrap: balance;
}

.intro p {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.75;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(38px, 7vw, 84px);
  line-height: 1;
}

.section-heading a {
  flex: 0 0 auto;
  border-bottom: 1px solid currentColor;
  color: var(--muted);
  font-weight: 900;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.project-card {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.62);
  box-shadow: 0 18px 52px rgba(55, 117, 111, 0.11);
}

.project-visual {
  position: relative;
  aspect-ratio: 1.15;
  overflow: hidden;
}

.project-visual::before,
.project-visual::after {
  position: absolute;
  content: "";
}

.visual-a {
  background:
    linear-gradient(135deg, rgba(108, 184, 255, 0.86), transparent 48%),
    linear-gradient(45deg, #f9fffb, #d9f7ef);
}

.visual-a::before {
  inset: 20%;
  border: 1px solid rgba(24, 48, 47, 0.28);
  transform: rotate(18deg);
}

.visual-a::after {
  left: 12%;
  right: 12%;
  top: 48%;
  height: 2px;
  background: var(--leaf);
  box-shadow: 0 42px 0 var(--rose), 0 -42px 0 var(--sun);
}

.visual-b {
  background: conic-gradient(from 120deg, #ff8a80, #ffd166, #52c9a2, #6cb8ff, #ff8a80);
}

.visual-b::before {
  inset: 12%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.82);
}

.visual-b::after {
  inset: 27%;
  border: 1px solid rgba(24, 48, 47, 0.28);
  border-radius: 50%;
}

.visual-c {
  background:
    linear-gradient(90deg, rgba(82, 201, 162, 0.72), transparent),
    repeating-linear-gradient(0deg, #f8fffb 0 13px, #dceeea 13px 14px);
}

.visual-c::before {
  left: 12%;
  right: 12%;
  bottom: 14%;
  height: 52%;
  background:
    linear-gradient(to top, var(--rose) 0 72%, transparent 72%),
    linear-gradient(to top, var(--sun) 0 44%, transparent 44%),
    linear-gradient(to top, var(--sky) 0 86%, transparent 86%),
    linear-gradient(to top, var(--leaf) 0 58%, transparent 58%);
  background-size: 22% 100%;
  background-position: 0 0, 33% 0, 66% 0, 100% 0;
  background-repeat: no-repeat;
}

.project-content {
  min-height: 190px;
  padding: 22px;
}

.project-content p {
  margin-bottom: 18px;
  color: #338a73;
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.project-content h3 {
  min-height: 70px;
  margin-bottom: 22px;
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1.08;
}

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

.stack-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 44px;
  background: var(--line);
}

.stack-list div {
  min-height: 260px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.72);
}

.stack-list span {
  color: #df6d65;
  font-weight: 950;
}

.stack-list h3 {
  margin: 50px 0 14px;
  font-size: 28px;
}

.stack-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.contact {
  margin: 0 clamp(18px, 6vw, 88px) 38px;
  padding: clamp(58px, 9vw, 110px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.5), transparent 38%),
    linear-gradient(120deg, #b8f0df, #fff0bd 45%, #ffd0ca);
  box-shadow: 0 30px 70px rgba(55, 117, 111, 0.14);
}

.contact p {
  color: rgba(24, 48, 47, 0.6);
}

.contact h2 {
  max-width: 1020px;
}

.contact a {
  display: inline-flex;
  margin-top: 14px;
  border-bottom: 2px solid currentColor;
  font-size: clamp(20px, 3vw, 36px);
  font-weight: 950;
}

@keyframes drift {
  to {
    transform: translateX(-420px);
  }
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    align-items: end;
    padding-top: 118px;
  }

  .hero-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .project-grid,
  .stack-list {
    grid-template-columns: 1fr;
  }

  .project-content,
  .project-content h3 {
    min-height: auto;
  }
}

@media (max-width: 640px) {
  .site-header {
    top: 12px;
    left: 12px;
    right: 12px;
    gap: 12px;
  }

  .brand span:last-child {
    display: none;
  }

  .lang-switch {
    grid-template-columns: repeat(3, 38px);
    width: 114px;
  }

  .hero {
    min-height: 96svh;
    padding: 104px 16px 44px;
  }

  h1 {
    font-size: clamp(64px, 24vw, 112px);
  }

  .hero-meta {
    grid-template-columns: 1fr;
  }

  .hero-meta div {
    min-height: 92px;
  }

  .section {
    padding-inline: 16px;
  }

  .section-heading {
    align-items: start;
    flex-direction: column;
  }

  .contact {
    margin-inline: 16px;
    padding: 42px 24px;
  }
}

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

  .ticker span {
    animation: none;
  }
}