@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;700&display=swap");

* {
  font-family: inherit;
  text-decoration: none;
  margin: 0;
  padding: 0;
  -webkit-user-drag: none;
  -moz-window-dragging: none;
  -webkit-tap-highlight-color: transparent;
}
* img {
  max-width: 100%;
}
a {
  color: inherit;
}

html,
body {
  color: var(--white-2);
  background-color: var(--gray-5);
  font-family: "IBM Plex Mono", "JetBrains Mono", monospace;
  line-height: 1.9rem;
  letter-spacing: 0.01em;
  min-height: 100vh;
}

body {
  padding: 2.5rem;
  background: radial-gradient(
      circle at 10% 20%,
      rgba(59, 247, 166, 0.1),
      transparent 30%
    ),
    radial-gradient(
      circle at 85% 12%,
      rgba(88, 196, 255, 0.12),
      transparent 26%
    ),
    radial-gradient(
      circle at 20% 82%,
      rgba(43, 241, 211, 0.08),
      transparent 28%
    ),
    linear-gradient(180deg, #050b12, #040a10 45%, #050b12 100%);
  position: relative;
  overflow-x: hidden;
}

@media (prefers-color-scheme: light) {
  body {
    background: radial-gradient(
        circle at 12% 18%,
        rgba(11, 191, 146, 0.18),
        transparent 32%
      ),
      radial-gradient(
        circle at 78% 10%,
        rgba(31, 160, 242, 0.2),
        transparent 30%
      ),
      radial-gradient(
        circle at 20% 82%,
        rgba(11, 191, 146, 0.14),
        transparent 28%
      ),
      linear-gradient(180deg, #f2f9ff, #e6f3fb 55%, #f8fcff);
  }
}

html[data-theme="light"] body {
  background: radial-gradient(
      circle at 12% 18%,
      rgba(11, 191, 146, 0.18),
      transparent 32%
    ),
    radial-gradient(
      circle at 78% 10%,
      rgba(31, 160, 242, 0.2),
      transparent 30%
    ),
    radial-gradient(
      circle at 20% 82%,
      rgba(11, 191, 146, 0.14),
      transparent 28%
    ),
    linear-gradient(180deg, #f2f9ff, #e6f3fb 55%, #f8fcff);
}

html[data-theme="dark"] body {
  background: radial-gradient(
      circle at 10% 20%,
      rgba(59, 247, 166, 0.1),
      transparent 30%
    ),
    radial-gradient(
      circle at 85% 12%,
      rgba(88, 196, 255, 0.12),
      transparent 26%
    ),
    radial-gradient(
      circle at 20% 82%,
      rgba(43, 241, 211, 0.08),
      transparent 28%
    ),
    linear-gradient(180deg, #050b12, #040a10 45%, #050b12 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.03) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 110px 110px;
  opacity: 0.25;
  pointer-events: none;
  mix-blend-mode: screen;
  z-index: 0;
}

@media (prefers-color-scheme: light) {
  body::before {
    opacity: 0.15;
  }
}

html[data-theme="light"] body::before {
  opacity: 0.15;
}

html[data-theme="dark"] body::before {
  opacity: 0.25;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(
      circle at 50% 0,
      rgba(88, 196, 255, 0.12),
      transparent 35%
    ),
    radial-gradient(
      circle at 12% 75%,
      rgba(59, 247, 166, 0.09),
      transparent 35%
    );
  pointer-events: none;
  z-index: 1;
}

header {
  padding: 2.25rem 0 3rem 0;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
header .brand {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.site-title {
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  font-weight: 700;
  line-height: 110%;
  color: var(--white-1);
  letter-spacing: 0.05em;
  font-family: "Space Grotesk", "IBM Plex Mono", monospace;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-transform: uppercase;
  text-shadow: 0 0 16px rgba(58, 247, 166, 0.15),
    0 0 8px rgba(72, 168, 255, 0.25);
}
.site-title::before {
  content: "▸";
  color: var(--accent-green);
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}
.nav-links a {
  color: var(--white-2);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.4rem 0.75rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(255, 255, 255, 0.02);
  transition: all 0.2s ease-in-out;
}
.nav-links a:hover {
  color: var(--accent-green);
  border-color: var(--border-strong);
  box-shadow: var(--glow-strong);
}

#dark-mode-toggle {
  border: 1px solid var(--border-strong);
  padding: 0.55rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--accent-blue);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.04);
  transition: all 0.2s ease-in-out;
}
#dark-mode-toggle:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px var(--accent-blue), var(--glow-strong);
}

main {
  margin: 0 auto;
  max-width: 960px;
  padding: 3rem 1.5rem 4rem 1.5rem;
  position: relative;
  z-index: 2;
}
.article {
  margin-bottom: 3rem;
  background: linear-gradient(145deg, var(--gray-3), var(--gray-2));
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  padding: 1.8rem 1.6rem;
  box-shadow: 0 20px 35px rgba(0, 0, 0, 0.35), var(--glow-strong);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(6px);
}
.article::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: radial-gradient(
      circle at 12% 18%,
      rgba(59, 247, 166, 0.12),
      transparent 35%
    ),
    radial-gradient(
      circle at 85% 0%,
      rgba(91, 214, 255, 0.12),
      transparent 35%
    );
  opacity: 0.35;
  pointer-events: none;
}

.article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid rgba(88, 196, 255, 0.35);
  position: relative;
}
.article-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 120px;
  height: 3px;
  background: linear-gradient(
    90deg,
    rgba(59, 247, 166, 0.7),
    rgba(88, 196, 255, 0.6)
  );
  border-radius: 999px;
}
.article-title {
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin-bottom: 0.6rem;
  line-height: 140%;
  font-family: "Space Grotesk", "IBM Plex Mono", monospace;
  color: var(--white-1);
  letter-spacing: 0.02em;
  text-shadow: 0 0 12px rgba(58, 247, 166, 0.12);
}

.article .date {
  display: block;
  font-size: 0.9rem;
  opacity: 0.85;
}
.categories {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: flex-start;
}
.categories .category {
  margin: 0 0.5rem 0.4rem 0;
  display: block;
  color: var(--white-1);
  background: linear-gradient(
    120deg,
    rgba(59, 247, 166, 0.18),
    rgba(91, 214, 255, 0.2)
  );
  border-radius: 14px;
  font-size: 0.72rem;
  padding: 0 0.9rem;
  line-height: 1.5rem;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid rgba(91, 214, 255, 0.4);
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  transition: all 0.2s ease-in-out;
}
.categories .category:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  box-shadow: 0 0 12px rgba(91, 214, 255, 0.3);
}

/* markdown content */

.content * {
  line-height: 180%;
}
.content p {
  margin: 0 0 1.6rem 0;
  padding: 0;
}
.content h1 {
  font-size: 2.1rem;
}
.content h2 {
  font-size: 1.9rem;
}
.content h3 {
  font-size: 1.6rem;
}
.content h4 {
  font-size: 1.4rem;
}
.content h5 {
  font-size: 1.2rem;
}
.content h6 {
  font-size: 1rem;
}
.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
  margin: 1.6rem 0 1rem;
  color: var(--white-1);
  letter-spacing: 0.01em;
}
.content a {
  color: var(--accent-green);
  border-bottom: 1px solid rgba(59, 247, 166, 0.35);
}
.content a:hover {
  color: var(--accent-blue);
  border-bottom-color: var(--accent-blue);
}
.content blockquote {
  padding: 1rem 1.5rem;
  margin-bottom: 1.6rem;
  font-style: italic;
  border-left: 3px solid var(--accent-blue);
  background: linear-gradient(
    120deg,
    rgba(59, 247, 166, 0.08),
    rgba(88, 196, 255, 0.08)
  );
  border-radius: 10px;
}
.content del,
.content s {
  text-decoration: line-through;
  opacity: 0.85;
}
.content strong {
  font-weight: 700;
}
.content ul {
  margin-left: 1rem;
  margin-bottom: 1.6rem;
}
.content ol {
  margin-left: 1.6rem;
  margin-bottom: 1.6rem;
}
.content ol * ol,
.content ul * ul {
  margin-left: 1rem;
  margin-bottom: 0;
}
.content table {
  width: 100%;
  max-width: 100%;
  margin: 1rem 0 1.6rem;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.01);
}
.content table th {
  background-color: rgba(91, 214, 255, 0.12);
  color: var(--white-1);
  border: 1px solid rgba(91, 214, 255, 0.3);
}
.content table * {
  border: 1px solid rgba(91, 214, 255, 0.25);
  padding: 0.4rem 0.5rem;
}
.content img {
  max-width: 100%;
  margin: 1rem 0;
  border-radius: 10px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}
.content img.emoji {
  margin: 0 !important;
  box-shadow: none;
}

/* pre , code */
.content,
.content div,
.content div pre,
.content div pre code {
  overflow-x: auto !important;
}

.content pre {
  background: linear-gradient(145deg, #0d2030, #0b1624);
  padding: 1rem 1.5rem;
  margin-bottom: 1.6rem;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  box-shadow: var(--glow-strong);
}

.content code {
  padding: 3px 5px;
  color: var(--accent-blue);
  white-space: pre;
  background: rgba(91, 214, 255, 0.08);
  border-radius: 6px;
  border: 1px solid rgba(91, 214, 255, 0.2);
}

@media (prefers-color-scheme: light) {
  .content code,
  .content pre {
    color: var(--white-2);
    background: var(--gray-2_5) !important;
    border-color: rgba(31, 160, 242, 0.2);
  }
}

[data-theme="light"] {
  .content code,
  .content pre {
    color: var(--white-2);
    background: var(--gray-2_5) !important;
    border-color: rgba(31, 160, 242, 0.2);
  }
}

[data-theme="dark"] {
  .content code,
  .content pre {
    color: var(--accent-blue);
    background: rgba(91, 214, 255, 0.08);
    border-color: var(--border-strong);
  }
}

/* lbox */

.content img {
  cursor: zoom-in;
}

#lightbox {
  position: fixed;
  z-index: 1000;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(4, 11, 18, 0.9);
  display: none;
  backdrop-filter: blur(2px);
}

#lightbox.active {
  display: flex;
  justify-content: center;
  align-items: center;
}

#lightbox img {
  max-width: 90%;
  max-height: 80%;
  padding: 4px;
  background-color: #02070d;
  border: 2px solid var(--accent-blue);
  box-shadow: var(--glow-strong);
}

footer {
  margin-top: 2rem;
  padding-top: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  color: var(--white-2);
  opacity: 0.9;
  letter-spacing: 0.04em;
}
footer p {
  font-size: 0.9rem;
}

footer #social-wrapper {
  margin-top: 0;
}

footer #social-wrapper img {
  width: 24px;
  height: 24px;
  margin: 0 0.3rem;
  filter: invert() brightness(1.2)
    drop-shadow(0 0 6px rgba(91, 214, 255, 0.35));
  transition: all 0.2s ease-in-out;
}

[data-theme="light"] footer #social-wrapper img {
  filter: drop-shadow(0 0 6px rgba(31, 160, 242, 0.25));
}

@media (prefers-color-scheme: light) {
  footer #social-wrapper img {
    filter: drop-shadow(0 0 6px rgba(31, 160, 242, 0.25));
  }
}

footer #social-wrapper img:hover {
  transform: translateY(-2px) scale(1.05);
}

@media screen and (max-width: 900px) {
  body {
    padding: 2rem;
  }
  main {
    padding: 2.5rem 1rem 3.5rem;
  }
}

@media screen and (max-width: 750px) {
  body {
    padding: 1.8rem;
  }
  header {
    flex-direction: column;
    gap: 2rem;
    align-items: flex-start;
    width: 100%;
  }
  header .brand {
    width: 100%;
  }
  .nav-links {
    gap: 0.5rem;
  }
  main {
    padding: 2.2rem 0.7rem 3rem;
  }
}

@media screen and (max-width: 550px) {
  body {
    padding: 1.5rem;
  }
  main {
    padding: 1.5rem 0.5rem 2.5rem;
  }
}