:root {
  --bg: #ffffff;
  --bg-soft: #f7f9fc;
  --ink: #112134;
  --ink-soft: #4a5e74;
  --accent: #006d77;
  --accent-2: #f28f3b;
  --line: #d6dee8;
  --card: #ffffff;
  --shadow: 0 16px 42px rgba(9, 22, 39, 0.11);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  width: 100%;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Sora", sans-serif;
  line-height: 1.5;
  color: var(--ink);
  background: radial-gradient(circle at 8% 12%, #eaf4ff 0%, transparent 34%),
    radial-gradient(circle at 92% 22%, #e9fff8 0%, transparent 35%),
    radial-gradient(circle at 50% 100%, #eef2ff 0%, transparent 40%),
    linear-gradient(180deg, #f9fcff 0%, #f3f8ff 52%, #f8fbff 100%);
  overflow-x: hidden;
}

img,
svg,
video,
canvas {
  max-width: 100%;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.2;
  mask-image: radial-gradient(circle at center, black, transparent 70%);
  pointer-events: none;
  z-index: -3;
}

.bg-stars {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}

.bg-star {
  position: absolute;
  width: var(--star-size);
  height: var(--star-size);
  border-radius: 50%;
  background: radial-gradient(circle, #ffffff 0%, #d8ebff 65%, transparent 100%);
  box-shadow: 0 0 6px rgba(200, 226, 255, 0.7), 0 0 10px rgba(162, 208, 255, 0.38);
  opacity: 0.2;
  animation: star-twinkle var(--star-duration) ease-in-out infinite;
  animation-delay: var(--star-delay);
}

@keyframes star-twinkle {
  0%,
  100% {
    opacity: 0.14;
    transform: scale(0.9);
  }
  50% {
    opacity: 0.85;
    transform: scale(1.5);
  }
}

.bg-3d-scene {
  position: fixed;
  inset: 0;
  pointer-events: none;
  perspective: 1200px;
  transform-style: preserve-3d;
  z-index: -1;
  transition: transform 220ms ease-out;
  will-change: transform;
}

.bg-shape {
  position: absolute;
  width: var(--shape-size);
  height: var(--shape-size);
  opacity: 0.56;
  --shape-rotation: 0deg;
  animation: shape-drift var(--shape-duration) ease-in-out infinite;
  animation-delay: var(--shape-delay);
}

.bg-orb {
  border-radius: 40% 60% 65% 35% / 50% 35% 65% 50%;
  background: radial-gradient(circle at 35% 30%, #ffffff 0%, var(--shape-color) 55%, color-mix(in srgb, var(--shape-color), #b8d7ff 30%) 100%);
  filter: blur(2px);
}

.bg-prism {
  background: linear-gradient(135deg, color-mix(in srgb, var(--shape-color), #ffffff 35%) 0%, var(--shape-color) 45%, color-mix(in srgb, var(--shape-color), #9cc3ff 22%) 100%);
  border-radius: 22% 36% 20% 42%;
  box-shadow: inset -18px -16px 28px rgba(255, 255, 255, 0.45);
  --shape-rotation: 18deg;
}

.bg-ring {
  border-radius: 50%;
  border: 20px solid color-mix(in srgb, var(--shape-color), #ffffff 22%);
  background: radial-gradient(circle, transparent 42%, color-mix(in srgb, var(--shape-color), #ffffff 55%) 58%, transparent 64%);
  opacity: 0.42;
}

.bg-diamond {
  width: calc(var(--shape-size) * 0.82);
  height: calc(var(--shape-size) * 0.82);
  --shape-rotation: 45deg;
  border-radius: 16px;
  background: linear-gradient(145deg, color-mix(in srgb, var(--shape-color), #ffffff 58%) 0%, color-mix(in srgb, var(--shape-color), #8cb9ff 26%) 100%);
  box-shadow: 0 14px 28px rgba(76, 118, 166, 0.22);
}

@keyframes shape-drift {
  0% {
    transform: translate3d(0, 0, -30px) rotate(var(--shape-rotation));
  }
  50% {
    transform: translate3d(0, -22px, 36px) rotate(calc(var(--shape-rotation) + 14deg));
  }
  100% {
    transform: translate3d(0, 0, -30px) rotate(calc(var(--shape-rotation) + 360deg));
  }
}

.cursor-ready,
.cursor-ready a,
.cursor-ready button,
.cursor-ready input,
.cursor-ready textarea,
.cursor-ready select {
  cursor: none;
}

.cursor-dot,
.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 1000;
  opacity: 0;
  transform: translate3d(-100px, -100px, 0);
  transition: opacity 180ms ease;
  will-change: transform;
}

.cursor-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #0c2c4e;
  margin-left: -4px;
  margin-top: -4px;
}

.cursor-ring {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1.5px solid color-mix(in srgb, var(--accent), #1b395c 26%);
  margin-left: -17px;
  margin-top: -17px;
  transition: opacity 180ms ease, width 180ms ease, height 180ms ease, margin 180ms ease, border-color 180ms ease;
}

.cursor-dot.is-visible,
.cursor-ring.is-visible {
  opacity: 1;
}

.cursor-ring.is-hover {
  width: 46px;
  height: 46px;
  margin-left: -23px;
  margin-top: -23px;
  border-color: color-mix(in srgb, var(--accent-2), #db7d1d 22%);
}

.site-header {
  width: min(1050px, calc(100vw - clamp(1rem, 4vw, 2.5rem)));
  margin: 1.25rem auto 0;
  padding: 1rem 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in oklab, white 88%, transparent);
  backdrop-filter: blur(8px);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.brand {
  font-family: "Fraunces", serif;
  font-size: 1.32rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.tagline,
.back-link,
.post-meta {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.top-nav a {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.92rem;
  padding: 0.4rem 0.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: border-color 140ms ease, color 140ms ease, background-color 140ms ease;
}

.top-nav a:hover {
  color: var(--ink);
  border-color: var(--line);
  background: var(--bg-soft);
}

.profile-links {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.icon-link {
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  background: white;
  text-decoration: none;
}

.icon-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.icon-link img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.icon-link:hover {
  color: var(--ink);
  border-color: var(--accent);
  background: var(--bg-soft);
}

.back-link {
  text-decoration: none;
  border-bottom: 1px dashed var(--accent-2);
  padding-bottom: 0.12rem;
}

.shell {
  width: min(1050px, calc(100vw - clamp(1rem, 4vw, 2.5rem)));
  margin: 1.6rem auto 3rem;
}

.site-footer {
  margin-top: 0.5rem;
  margin-bottom: 1.6rem;
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.hero,
.post-list-section,
.post-shell {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}

.hero {
  padding: clamp(1.5rem, 3vw, 2.6rem);
  position: relative;
  isolation: isolate;
  overflow: clip;
}

.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -110px;
  width: 340px;
  height: 340px;
  background: conic-gradient(from 145deg, #e1efff, #dff9f2, #ffe8d2, #e1efff);
  border-radius: 50%;
  opacity: 0.8;
  z-index: -1;
}

.eyebrow {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.hero h1 {
  font-family: "Fraunces", serif;
  margin: 0.45rem 0 0.8rem;
  font-size: clamp(1.7rem, 3vw, 3rem);
  line-height: 1.12;
  max-width: 22ch;
}

.hero p {
  margin: 0;
  max-width: 62ch;
  color: var(--ink-soft);
}

.about-note {
  margin-top: 0.8rem;
  font-weight: 500;
  color: var(--ink);
}

.hero-cta {
  margin-top: 1.2rem;
  display: inline-flex;
  text-decoration: none;
  color: white;
  background: linear-gradient(120deg, var(--accent) 0%, #00525b 100%);
  border-radius: 999px;
  padding: 0.62rem 1rem;
  font-size: 0.92rem;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(0, 109, 119, 0.22);
}

.hero-actions {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.hero-actions .hero-cta {
  margin-top: 0;
}

.hero-cta.ghost {
  color: var(--ink);
  background: white;
  border: 1px solid var(--line);
  box-shadow: none;
}

.projects-section {
  margin-top: 1.35rem;
  padding: clamp(1.1rem, 2.5vw, 1.8rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}

.tech-stack-section {
  margin-top: 1.35rem;
  padding: clamp(1.1rem, 2.5vw, 1.8rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}

.github-section {
  margin-top: 1.35rem;
  padding: clamp(1.1rem, 2.5vw, 1.8rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}

.github-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.95rem;
}

.github-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.github-card-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.github-card-head h3 {
  margin: 0;
  font-family: "Fraunces", serif;
  font-size: 1.15rem;
}

.github-card-head a {
  color: var(--accent);
  font-size: 0.88rem;
  text-decoration: none;
  font-weight: 600;
}

.github-status {
  margin: 0.5rem 0 0.8rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.github-activity-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.gh-item,
.gh-item-error {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
  padding: 0.65rem 0.75rem;
}

.gh-item p,
.gh-item-error {
  margin: 0;
  color: var(--ink);
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.gh-item a {
  display: inline-block;
  margin-top: 0.25rem;
  text-decoration: none;
  color: var(--accent);
  font-size: 0.82rem;
}

.gh-item span {
  display: block;
  margin-top: 0.18rem;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.gh-item-error {
  color: #7f2e15;
  background: #ffeee7;
}

.github-graph {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: white;
  padding: 0.8rem;
  overflow-x: auto;
  display: grid;
  justify-items: center;
}

.gh-heatmap {
  display: grid;
  grid-template-rows: repeat(7, 11px);
  grid-auto-flow: column;
  grid-auto-columns: 11px;
  gap: 3px;
  width: max-content;
  margin: 0 auto;
}

.gh-day {
  width: 11px;
  height: 11px;
  border-radius: 2px;
  border: 1px solid rgba(27, 57, 92, 0.08);
}

.gh-l0 {
  background: #ebedf0;
}

.gh-l1 {
  background: #9be9a8;
}

.gh-l2 {
  background: #40c463;
}

.gh-l3 {
  background: #30a14e;
}

.gh-l4 {
  background: #216e39;
}

.stack-list {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.65rem;
}

.stack-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.85rem 0.75rem;
  font-size: 0.9rem;
  color: var(--ink);
  background: linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
  font-weight: 500;
  text-align: center;
  min-height: 106px;
}

.stack-item img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.stack-item span {
  line-height: 1.1;
}

.project-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.9rem;
}

.project-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  display: grid;
  gap: 0.75rem;
}

.project-card h3 {
  margin: 0;
  font-family: "Fraunces", serif;
  font-size: 1.2rem;
}

.project-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.project-card a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

.github-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.github-link svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}

.project-card a:hover {
  color: #055961;
}

.post-list-section {
  margin-top: 1.35rem;
  padding: clamp(1.1rem, 2.5vw, 1.8rem);
}

.section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.section-title-row h2 {
  margin: 0;
  font-family: "Fraunces", serif;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
}

.post-count {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.post-list {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.9rem;
}

.post-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  text-decoration: none;
  color: inherit;
  display: grid;
  gap: 0.75rem;
  transform: translateY(8px);
  opacity: 0;
  animation: card-in 0.45s ease forwards;
  min-width: 0;
}

.post-card:hover {
  border-color: var(--accent-2);
}

.post-card h3 {
  margin: 0;
  font-family: "Fraunces", serif;
  font-size: 1.25rem;
  line-height: 1.2;
}

.post-excerpt {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.post-meta {
  margin: 0;
}

.post-shell {
  padding: clamp(1.2rem, 3vw, 2.4rem);
}

.post-title {
  margin: 0.35rem 0 1rem;
  font-family: "Fraunces", serif;
  font-size: clamp(1.7rem, 4vw, 3rem);
  line-height: 1.08;
}

.post-content {
  color: var(--ink);
  line-height: 1.75;
  font-size: 1.02rem;
}

.post-content img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.2rem auto;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(9, 22, 39, 0.12);
}

.post-content h2,
.post-content h3 {
  font-family: "Fraunces", serif;
  line-height: 1.2;
  margin-top: 1.7em;
}

.post-content code {
  background: #eef4fc;
  padding: 0.12rem 0.3rem;
  border-radius: 6px;
}

.post-content pre {
  background: #f8fbff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.post-content blockquote {
  border-left: 4px solid var(--accent);
  margin-left: 0;
  padding-left: 0.9rem;
  color: var(--ink-soft);
}

.error-text {
  color: #8f2d0f;
  background: #ffe6dc;
  border: 1px solid #f2b7a3;
  border-radius: 12px;
  padding: 0.75rem;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  animation: reveal 0.55s ease forwards;
}

@keyframes reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes card-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 760px) {
  .site-header {
    border-radius: 18px;
    padding: 0.9rem;
    flex-wrap: wrap;
    row-gap: 0.45rem;
  }

  .top-nav {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .header-actions {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .profile-links {
    width: 100%;
  }

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

  .stack-list {
    gap: 0.55rem;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .site-header {
    margin-top: 0.9rem;
    padding: 0.75rem;
  }

  .brand {
    font-size: 1.14rem;
  }

  .top-nav {
    gap: 0.5rem;
  }

  .top-nav a {
    font-size: 0.86rem;
    padding: 0.36rem 0.52rem;
  }

  .icon-link {
    width: 34px;
    height: 34px;
  }

  .stack-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .post-content {
    font-size: 0.97rem;
  }
}

@media (max-height: 560px) and (orientation: landscape) {
  .site-header {
    margin-top: 0.6rem;
    padding: 0.72rem 0.95rem;
  }

  .shell {
    margin-top: 1rem;
    margin-bottom: 1.5rem;
  }

  .hero,
  .post-list-section,
  .post-shell,
  .projects-section,
  .tech-stack-section,
  .github-section {
    padding: 1rem;
  }

  .bg-shape {
    opacity: 0.4;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal,
  .post-card {
    opacity: 1;
    transform: none;
  }
}