:root {
  --paper: #fbfbfb;
  --paper-deep: #f8f8f9;
  --ink: #111118;
  --ink-soft: #3d3d45;
  --line: rgba(74, 74, 94, 0.22);
  --mint: #94efb2;
  --pink: #f09be7;
  --lime: #9ce987;
  --card: rgba(255, 255, 255, 0.7);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "SF Pro Text", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", sans-serif;
  color: var(--ink);
  min-height: 100vh;
  line-height: 1.42;
  background:
    radial-gradient(circle at 10% 10%, rgba(156, 204, 255, 0.06), transparent 34%),
    radial-gradient(circle at 84% 12%, rgba(240, 155, 231, 0.055), transparent 36%),
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.003), rgba(0, 0, 0, 0.003) 1px, transparent 1px, transparent 44px),
    linear-gradient(180deg, var(--paper), var(--paper-deep));
}

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

.nav-grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.28;
  z-index: 0;
  background:
    linear-gradient(rgba(110, 110, 120, 0.18) 1px, transparent 1px) 0 0 / 46px 46px,
    linear-gradient(90deg, rgba(110, 110, 120, 0.18) 1px, transparent 1px) 0 0 / 46px 46px,
    rgba(245, 245, 246, 0.02);
}

.site {
  width: min(1320px, 95%);
  margin: 0 auto;
  padding: 1.35rem 0 4rem;
  position: relative;
  z-index: 2;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.8rem;
  margin-bottom: 2rem;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.brand img {
  height: 2.35rem;
  width: auto;
}

nav {
  display: inline-flex;
  gap: 1.45rem;
  color: var(--ink-soft);
  font-size: 1rem;
  font-weight: 660;
  letter-spacing: 0.01em;
  align-items: center;
}

.nav-link {
  position: relative;
  display: inline-block;
  color: #181821;
}

.nav-link::after,
.btn-soft::after {
  content: "";
  position: absolute;
  left: -0.05em;
  right: -0.05em;
  bottom: -0.15em;
  height: 0.4em;
  border-bottom: 2px solid var(--mint);
  border-radius: 80% 70%;
  clip-path: inset(0 100% 0 0);
  opacity: 0;
  transition: clip-path 240ms steps(7, jump-end), opacity 130ms steps(2, end);
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.btn-soft:hover::after,
.btn-soft:focus-visible::after,
.nav-link-active::after {
  clip-path: inset(0 0 0 0);
  opacity: 1;
}

.cta-btn {
  border: 1px solid var(--ink);
  background: rgba(17, 17, 24, 0.94);
  color: #fff;
  border-radius: 0;
  padding: 0.58rem 1.04rem;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.02;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transform: translate3d(0, 0, 0);
  transition:
    background-color 290ms steps(11, end),
    color 290ms steps(11, end),
    border-color 290ms steps(11, end),
    transform 340ms cubic-bezier(0.22, 1, 0.36, 1);
}

.cta-btn:hover,
.cta-btn:focus-visible {
  background: var(--mint);
  border-color: var(--mint);
  color: #12121a;
  transform: translate3d(0, -1px, 0);
}

.cta-btn-nav {
  background: var(--mint);
  border-color: var(--mint);
  color: #14141b;
  padding: 0.66rem 1.2rem;
  font-size: 1.01rem;
}

.cta-btn-nav:hover,
.cta-btn-nav:focus-visible {
  background: #131313;
  border-color: #131313;
  color: #fff;
}

.btn-soft {
  border: none;
  padding: 0.58rem 0;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1;
  color: #16161e;
  background: transparent;
  position: relative;
  display: inline-flex;
  align-items: center;
}

.hero {
  margin-bottom: 1.8rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.2rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 4.6vw, 4.4rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
  font-weight: 820;
  max-width: 16ch;
  margin-bottom: 0.82rem;
}

.hero h1 .hero-chunk {
  display: block;
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  filter: blur(0.8px);
}

.hero.on h1 .hero-chunk {
  animation: hero-chunk-in 620ms forwards;
}

.hero.on h1 .hero-chunk:nth-child(1) {
  animation-delay: 40ms;
}

.hero.on h1 .hero-chunk:nth-child(2) {
  animation-delay: 140ms;
}

.hero.on h1 .hero-chunk:nth-child(3) {
  animation-delay: 230ms;
}

.hero p {
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.2vw, 1.16rem);
  max-width: 74ch;
}

.hero h1 .hl {
  position: relative;
  display: inline;
  z-index: 0;
}

.hero h1 .hl::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.08em;
  height: 0.48em;
  background: rgba(240, 125, 221, 0.86);
  transform: scaleX(0) skewX(-6deg);
  transform-origin: left center;
  opacity: 0;
  z-index: -1;
}

.hero.on h1 .hl::after {
  animation: marker-draw 760ms forwards;
  animation-delay: var(--hl-delay, 320ms);
}

.card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--card), rgba(255, 255, 255, 0.4));
  border-radius: 10px;
  padding: 1rem;
}

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

.archive-card {
  display: grid;
  gap: 0.62rem;
}

.archive-card h2 {
  font-size: clamp(1.1rem, 2.1vw, 1.45rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.post-meta {
  color: #595969;
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.035em;
}

.archive-card p {
  color: #32323c;
  font-size: 0.96rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.42rem;
}

.tag {
  font-size: 0.74rem;
  padding: 0.2rem 0.42rem;
  border: 1px solid rgba(70, 70, 85, 0.22);
  background: rgba(255, 255, 255, 0.62);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.post-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1rem;
  align-items: start;
}

.article-wrap {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--card), rgba(255, 255, 255, 0.45));
  border-radius: 10px;
  padding: 1.1rem;
}

.article-wrap .post-title {
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  margin-bottom: 0.72rem;
}

.article-wrap .post-dek {
  color: #363641;
  margin-bottom: 1rem;
}

.prose {
  max-width: 74ch;
  color: #23232d;
}

.prose > * + * {
  margin-top: 0.9rem;
}

.prose h1 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  letter-spacing: -0.03em;
  margin-top: 1.2rem;
}

.prose h2 {
  font-size: clamp(1.3rem, 2vw, 1.65rem);
  letter-spacing: -0.02em;
  margin-top: 1.05rem;
}

.prose h3 {
  font-size: 1.14rem;
  letter-spacing: -0.01em;
  margin-top: 1rem;
}

.prose p {
  font-size: 1rem;
}

.prose ul,
.prose ol {
  padding-left: 1.2rem;
}

.prose li {
  margin: 0.24rem 0;
}

.prose strong {
  font-weight: 720;
}

.prose code {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.66);
  padding: 0.06rem 0.34rem;
  font-size: 0.91em;
}

.prose blockquote {
  border-left: 2px solid var(--pink);
  padding: 0.35rem 0 0.35rem 0.9rem;
  color: #2b2b34;
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.55);
}

.sidebar {
  display: grid;
  gap: 1rem;
  position: sticky;
  top: 1rem;
}

.sidebar h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.link-list {
  list-style: none;
  display: grid;
  gap: 0.52rem;
}

.link-list a {
  color: #23232a;
  border-bottom: 1px dashed transparent;
  transition: border-color 160ms ease;
}

.link-list a:hover,
.link-list a:focus-visible {
  border-bottom-color: #23232a;
}

.post-nav {
  margin-top: 1.2rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: space-between;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
}

.reveal.on {
  animation: reveal-choppy-in 820ms forwards;
}

@keyframes hero-chunk-in {
  0% {
    opacity: 0;
    transform: translate3d(0, 18px, 0);
    filter: blur(0.8px);
    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  }
  16% {
    opacity: 0.76;
    transform: translate3d(0, 13px, 0);
    filter: blur(0.5px);
    animation-timing-function: steps(11, end);
  }
  88% {
    opacity: 1;
    transform: translate3d(0, 1px, 0);
    filter: blur(0.06px);
    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    filter: blur(0);
  }
}

@keyframes marker-draw {
  0% {
    opacity: 0;
    transform: scaleX(0) skewX(-6deg);
    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  }
  14% {
    opacity: 0.88;
    transform: scaleX(0.12) skewX(-6deg);
    animation-timing-function: steps(12, end);
  }
  84% {
    opacity: 0.95;
    transform: scaleX(0.9) skewX(-6deg);
    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  }
  100% {
    opacity: 0.95;
    transform: scaleX(1) skewX(-6deg);
  }
}

@keyframes reveal-choppy-in {
  0% {
    opacity: 0;
    transform: translateY(14px);
    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  }
  18% {
    opacity: 0.46;
    transform: translateY(10px);
    animation-timing-function: steps(12, end);
  }
  88% {
    opacity: 1;
    transform: translateY(1px);
    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

footer {
  margin-top: 2.4rem;
  text-align: center;
  color: #555560;
  font-size: 0.82rem;
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

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

  .hero h1 .hero-chunk {
    opacity: 1;
    transform: none;
    filter: none;
  }

  .hero h1 .hl::after {
    transform: scaleX(1) skewX(-6deg);
    opacity: 0.95;
  }

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

  .reveal.on {
    animation: none;
  }
}

@media (max-width: 1060px) {
  .archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .post-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 820px) {
  .topbar {
    flex-wrap: wrap;
    justify-content: center;
  }

  nav {
    order: 3;
    width: 100%;
    justify-content: center;
  }

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