/***** Variables *****/
:root {
  --bg: #0d0d12;
  --bg-alt: #12121a;
  --surface: #1a1a24;
  --surface-hover: #222230;
  --border: rgba(184, 115, 51, 0.12);
  --border-strong: rgba(184, 115, 51, 0.25);

  --text: #e8e6e3;
  --text-secondary: #a09e9a;
  --text-muted: #6b7280;

  --accent: #b87333;
  --accent-hover: #d48a3e;
  --accent-dim: rgba(184, 115, 51, 0.10);

  --code-bg: #14141e;
  --code-text: #cdcdcd;
  --code-border: rgba(184, 115, 51, 0.08);

  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
  --font-display: 'Playfair Display', Georgia, serif;

  --nav-height: 3.75rem;
  --content-width: 44rem;
  --content-wide: 56rem;
  --radius: 6px;
  --radius-sm: 4px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/***** Selection *****/
::selection {
  background: var(--accent);
  color: #0d0d12;
}

/***** Links *****/
a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
}

/***** Navigation *****/
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(13, 13, 18, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  height: 100%;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-brand:hover {
  color: var(--text);
}

.nav-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--accent);
}

.nav-prompt {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  opacity: 0.7;
  margin-left: 0.15rem;
}

.nav-toggle { display: none; }
.nav-hamburger { display: none; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  margin-left: auto;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 450;
  text-decoration: none;
  transition: color 0.2s;
  font-family: var(--font-mono);
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-social {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-left: 0.5rem;
  padding-left: 1rem;
  border-left: 1px solid var(--border);
}

.nav-social a {
  display: flex;
  align-items: center;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav-social a:hover {
  color: var(--accent);
}

.nav-social a img {
  display: block;
  opacity: 0.55;
  transition: opacity 0.2s;
}

.nav-social a:hover img {
  opacity: 1;
}

/***** Main content *****/
main {
  padding-top: var(--nav-height);
  min-height: 100vh;
}

/***** Home timeline *****/
.home-layout main {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.home {
  width: 100%;
  max-width: var(--content-wide);
  padding: 3rem 1.5rem 6rem;
}

.home-prompt {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.home-prompt span {
  color: var(--accent);
}

/***** Cursor clignotant *****/
.prompt-cursor {
  display: inline-block;
  animation: blink 1s step-end infinite;
  color: var(--accent) !important;
  font-family: var(--font-mono);
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.post-list {
  list-style: none;
}

.post-item {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(107, 114, 128, 0.07);
  transition: background 0.15s;
  padding-left: 0.5rem;
  margin-left: -0.5rem;
  padding-right: 0.5rem;
  margin-right: -0.5rem;
  border-radius: var(--radius-sm);
}

.post-item:hover {
  background: var(--accent-dim);
}

.post-item-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  width: 6.5rem;
}

.post-item-title {
  font-size: 0.95rem;
  font-weight: 450;
  color: var(--text);
  line-height: 1.5;
  text-decoration: none !important;
}

.post-item-title:hover {
  color: var(--accent);
}

.post-item-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-left: auto;
  opacity: 0.6;
  flex-shrink: 0;
}

/***** Pages (post, about, etc.) *****/
.page-layout main {
  display: flex;
  justify-content: center;
  padding: calc(var(--nav-height) + 3rem) 1.5rem 6rem;
}

.post {
  width: 100%;
  max-width: var(--content-width);
}

/***** Post header *****/
.post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.post-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.post-title {
  font-size: 2rem;
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-top: 0.75rem;
  color: var(--text);
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  text-decoration: none !important;
  transition: background 0.2s;
}

.tag:hover {
  background: rgba(184, 115, 51, 0.2);
  color: var(--accent-hover);
}

/***** Post content *****/
.post-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.post-content h2 {
  font-size: 1.4rem;
  font-weight: 650;
  color: var(--text);
  margin: 2.25rem 0 0.75rem;
  letter-spacing: -0.01em;
}

.post-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  margin: 1.75rem 0 0.5rem;
}

.post-content h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin: 1.5rem 0 0.5rem;
}

.post-content p {
  margin-bottom: 1.25rem;
}

.post-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--accent-dim);
}

.post-content a:hover {
  text-decoration-color: var(--accent);
}

.post-content strong {
  color: var(--text);
  font-weight: 600;
}

.post-content em {
  font-style: italic;
}

.post-content blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
  color: var(--text);
  font-style: italic;
  font-family: var(--font-display);
  font-size: 1.1rem;
  line-height: 1.6;
}

.post-content blockquote p {
  margin-bottom: 0;
}

.post-content ul,
.post-content ol {
  margin: 1rem 0 1.25rem;
  padding-left: 1.5rem;
}

.post-content li {
  margin-bottom: 0.35rem;
}

.post-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/***** Code blocks *****/
.post-content code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--code-bg);
  color: var(--code-text);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
}

.post-content pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin: 1.25rem 0;
  overflow-x: auto;
  font-size: 0.8rem;
  line-height: 1.5;
}

.post-content pre code {
  background: none;
  color: var(--code-text);
  padding: 0;
  font-size: inherit;
  border-radius: 0;
}

.highlight {
  background: var(--code-bg);
  border-radius: var(--radius);
}

.highlight .c  { color: #5c6370; font-style: italic; }
.highlight .k  { color: #c678dd; }
.highlight .s  { color: #98c379; }
.highlight .n  { color: #e5c07b; }
.highlight .o  { color: #abb2bf; }
.highlight .p  { color: #abb2bf; }
.highlight .m  { color: #d19a66; }
.highlight .mi { color: #d19a66; }
.highlight .mf { color: #d19a66; }
.highlight .nb { color: #61afef; }
.highlight .nc { color: #e5c07b; }
.highlight .nd { color: #61afef; }
.highlight .nf { color: #61afef; }
.highlight .nt { color: #e06c75; }
.highlight .na { color: #d19a66; }
.highlight .nl { color: #e5c07b; }
.highlight .ne { color: #e06c75; }

.lineno {
  color: #3b4048;
  padding-right: 1rem;
  padding-left: 0.25rem;
  border-right: 1px solid rgba(255,255,255,0.04);
  margin-right: 1rem;
  user-select: none;
  -webkit-user-select: none;
}

/***** Images *****/
.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: 1.75rem 0;
  border: 1px solid var(--border);
}

.post-content figure {
  margin: 2rem 0;
}

.post-content figcaption {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.4rem;
  font-style: italic;
}

/***** Tables *****/
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.post-content th {
  text-align: left;
  color: var(--text);
  font-weight: 600;
  padding: 0.5rem 0.75rem;
  border-bottom: 2px solid var(--border-strong);
}

.post-content td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.post-content tr:last-child td {
  border-bottom: none;
}

/***** Post navigation *****/
.post-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.post-nav {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 45%;
  font-family: var(--font-mono);
  transition: color 0.2s;
}

.post-nav:hover {
  color: var(--accent);
}

.post-nav.next {
  text-align: right;
  margin-left: auto;
}

/***** Tags archive *****/
.tags-page {
  width: 100%;
  max-width: var(--content-wide);
  padding: 3rem 1.5rem 6rem;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.tag-cloud .tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.7rem;
}

.tag-group {
  margin-bottom: 2.5rem;
}

.tag-group h2 {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.tag-group .post-item {
  padding-top: 0.4rem;
  padding-bottom: 0.4rem;
}

/***** Footer *****/
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
}

.footer-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer a {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.footer a:hover {
  color: var(--accent);
}

.footer-copy a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.footer-colophon {
  color: var(--text-muted);
  font-size: 0.75rem;
}

/***** About page *****/
.about-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.about-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
  flex-shrink: 0;
}

/***** Responsive *****/
@media (max-width: 768px) {
  html { font-size: 15px; }

  .nav-title {
    display: none;
  }

  .nav-hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    margin-left: auto;
    padding: 6px 0;
    z-index: 101;
  }

  .nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 1px;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .nav-toggle:checked ~ .nav-hamburger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle:checked ~ .nav-hamburger span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle:checked ~ .nav-hamburger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 1.5rem 1rem 2rem;
    background: rgba(13, 13, 18, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-strong);
  }

  .nav-links a {
    padding: 0.7rem 0;
    width: 100%;
    text-align: center;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border);
  }

  .nav-links a:last-of-type {
    border-bottom: none;
  }

  .nav-social {
    margin-left: 0;
    padding-left: 0;
    border-left: none;
    gap: 1rem;
    margin-top: 0.75rem;
  }

  .nav-toggle:checked ~ .nav-links {
    display: flex;
  }

  .post-item {
    flex-wrap: wrap;
    gap: 0.25rem;
  }

  .post-item-date {
    width: auto;
  }

  .post-item-badge {
    margin-left: 0;
  }

  .post-title {
    font-size: 1.5rem;
  }

  .post-footer {
    flex-direction: column;
    gap: 0.5rem;
  }

  .post-nav {
    max-width: 100%;
  }

  .post-nav.next {
    text-align: left;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .about-header {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .home {
    padding: 2rem 1rem 4rem;
  }

  .page-layout main {
    padding: calc(var(--nav-height) + 2rem) 1rem 4rem;
  }

  .post-item-date {
    font-size: 0.7rem;
    width: 5.5rem;
  }

  .post-item-title {
    font-size: 0.88rem;
  }
}

/***** Print *****/
@media print {
  .header { display: none; }
  .footer { display: none; }
  body { background: white; color: black; }
  main { padding-top: 0; }
  .post-content a { text-decoration: underline; }
}