:root {
  --bg: #0b0f14;
  --surface: #11161c;
  --surface2: #151a21;
  --border: rgba(255, 255, 255, 0.06);
  --border-strong: rgba(255, 255, 255, 0.1);
  --text: #e6edf3;
  --text2: #a7b0ba;
  --text3: #6f7a86;
  --accent: #4f8cff;
  --accent-dim: rgba(79, 140, 255, 0.12);
  --accent-soft: rgba(79, 140, 255, 0.22);
  --accent-alt: #7c5cff;
  --success: #2fbf71;
  --success-dim: rgba(47, 191, 113, 0.12);
  --warning: #d3a35f;
  --warning-dim: rgba(211, 163, 95, 0.12);
  --nav-bg: rgba(11, 15, 20, 0.86);
  --button-text: #f8fbff;
  --mono: 'JetBrains Mono', monospace;
  --sans: 'Outfit', sans-serif;
  --display: 'Syne', sans-serif;
  --radius: 10px;
  --transition: 0.24s ease;
}

[data-theme="light"] {
  --bg: #f2f5f8;
  --surface: #ffffff;
  --surface2: #edf2f7;
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.12);
  --text: #17212b;
  --text2: #52606d;
  --text3: #748291;
  --accent-dim: rgba(79, 140, 255, 0.12);
  --accent-soft: rgba(79, 140, 255, 0.18);
  --success-dim: rgba(47, 191, 113, 0.12);
  --warning-dim: rgba(211, 163, 95, 0.14);
  --nav-bg: rgba(242, 245, 248, 0.88);
  --button-text: #ffffff;
}

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

html {
  scroll-behavior: smooth;
}

body.site-page {
  position: relative;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

body.site-page::before,
body.site-page::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body.site-page::before {
  background:
    radial-gradient(circle at 12% 12%, rgba(79, 140, 255, 0.11), transparent 24rem),
    radial-gradient(circle at 86% 14%, rgba(124, 92, 255, 0.07), transparent 26rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.022), transparent 40%);
  opacity: 0.9;
}

body.site-page::after {
  background-image:
    linear-gradient(rgba(79, 140, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 140, 255, 0.028) 1px, transparent 1px);
  background-size: 120px 120px;
  opacity: 0.14;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.42), transparent 82%);
}

body.site-page nav,
body.site-page .hero,
body.site-page .page-header,
body.site-page .blog-toolbar,
body.site-page .filters,
body.site-page main,
body.site-page section,
body.site-page footer {
  position: relative;
  z-index: 1;
}

body.site-page a {
  color: inherit;
  text-decoration: none;
}

body.site-page nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  backdrop-filter: blur(18px);
}

body.site-page .nav-logo {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.06em;
}

body.site-page .nav-logo span {
  color: var(--text2);
}

body.site-page .nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

body.site-page .nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text2);
  transition: color var(--transition);
}

body.site-page .nav-links a:hover,
body.site-page .nav-links a.active {
  color: var(--text);
}

body.site-page .nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

body.site-page .theme-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text2);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius);
  transition: all var(--transition);
}

body.site-page .theme-btn:hover {
  color: var(--text);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(79, 140, 255, 0.16);
}

body.site-page .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

body.site-page .btn-primary {
  background: linear-gradient(135deg, rgba(79, 140, 255, 0.95), rgba(124, 92, 255, 0.88));
  color: var(--button-text);
  border-color: rgba(124, 160, 255, 0.2);
  box-shadow: 0 18px 34px rgba(15, 31, 53, 0.26);
}

body.site-page .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 42px rgba(15, 31, 53, 0.32);
  filter: saturate(1.04);
}

body.site-page .btn-ghost {
  border-color: var(--border);
  color: var(--text2);
  background: rgba(255, 255, 255, 0.025);
}

body.site-page .btn-ghost:hover {
  border-color: rgba(79, 140, 255, 0.3);
  color: var(--text);
  background: rgba(79, 140, 255, 0.08);
}

body.site-page .nav-links a:focus-visible,
body.site-page .theme-btn:focus-visible,
body.site-page .btn:focus-visible,
body.site-page .profile-link:focus-visible,
body.site-page .post-card:focus-visible,
body.site-page .footer-back:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.18);
}

body.site-page .posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

body.site-page .post-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.012)),
    linear-gradient(135deg, rgba(79, 140, 255, 0.05), transparent 48%),
    var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.85rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition), background var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: 0 18px 34px rgba(3, 8, 15, 0.24);
}

body.site-page .post-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, rgba(79, 140, 255, 0.6), rgba(124, 92, 255, 0.24) 42%, transparent 76%);
  opacity: 0;
  transition: opacity var(--transition);
}

body.site-page .post-card:hover {
  border-color: rgba(79, 140, 255, 0.28);
  transform: translateY(-3px);
  box-shadow: 0 24px 42px rgba(3, 8, 15, 0.3);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.014)),
    linear-gradient(135deg, rgba(79, 140, 255, 0.08), transparent 52%),
    var(--surface);
}

body.site-page .post-card:hover::before,
body.site-page .post-card:focus-visible::before {
  opacity: 1;
}

body.site-page .post-date {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

body.site-page .post-tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--accent);
  background: rgba(79, 140, 255, 0.12);
  border: 1px solid rgba(79, 140, 255, 0.2);
  padding: 0.18rem 0.6rem;
  border-radius: 100px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

body.site-page .post-title {
  font-family: var(--display);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.28;
  margin-bottom: 0.9rem;
  transition: color var(--transition);
}

body.site-page .post-card:hover .post-title {
  color: var(--accent);
}

body.site-page .post-excerpt {
  font-size: 0.92rem;
  color: var(--text2);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 1.25rem;
}

body.site-page .post-read-more {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

body.site-page .post-read-more::after {
  content: "\2192";
  transition: transform var(--transition), opacity var(--transition);
}

body.site-page .post-card:hover .post-read-more::after {
  transform: translateX(4px);
  opacity: 1;
}

body.site-page footer {
  border-top: 1px solid var(--border);
  padding: 2rem 6vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text3);
}

body.site-page .footer-back {
  cursor: pointer;
  transition: color var(--transition);
}

body.site-page .footer-back:hover {
  color: var(--accent);
}

body.site-page .fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

body.site-page .fade-in.visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 768px) {
  body.site-page nav {
    padding: 0 1.5rem;
  }

  body.site-page .nav-links {
    display: none;
  }

  body.site-page footer {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}