:root {
  color-scheme: light;
  --background: linear-gradient(180deg, #f6f8fb 0%, #eef2f7 100%);
  --paper: #fefeff;
  --ink: #1f2328;
  --muted: #4c5563;
  --accent: rgb(99, 67, 43);
  --accent-soft: rgba(157, 92, 45, 0.18);
  --border: rgba(31, 35, 40, 0.12);
  --code-inline-bg: rgba(99, 67, 43, 0.12);
}

[data-theme="dark"] {
  color-scheme: dark;
  --background: radial-gradient(circle at top, #11161f 0%, #0a0d12 100%);
  --paper: #121820;
  --ink: #e6edf3;
  --muted: #9ba7b6;
  --accent: #e19a55;
  --accent-soft: rgba(225, 154, 85, 0.18);
  --border: rgba(130, 150, 170, 0.18);
  --code-inline-bg: rgba(225, 154, 85, 0.22);
}

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

html {
  min-height: 100%;
  background: var(--background);
}

body {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  line-height: 1.75;
  background: var(--background);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 clamp(1.75rem, 6vw, 3rem);
}

.site-header {
  padding: 2.6rem 0 1.85rem;
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  max-width: 1120px;
  padding: 0 clamp(2.25rem, 7vw, 4.25rem);
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.theme-toggle {
  background: none;
  border: 1px solid transparent;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--accent-soft);
  color: var(--ink);
  outline: none;
}

.theme-icon {
  display: none;
  width: 1.2rem;
  height: 1.2rem;
}

.theme-icon path,
.theme-icon circle,
.theme-icon line {
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
}

[data-theme="light"] .theme-icon--sun,
[data-theme="dark"] .theme-icon--moon {
  display: inline;
}

[data-theme="dark"] .theme-icon--sun,
[data-theme="light"] .theme-icon--moon {
  display: none;
}

.site-title {
  font-family: "Helvetica Neue", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 2rem;
  font-weight: 650;
  letter-spacing: 0.015em;
  color: var(--ink);
  margin-right: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.3rem;
  font-family: inherit;
  font-size: 1.02rem;
  color: var(--muted);
  text-transform: none;
}

.site-nav a {
  color: inherit;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid transparent;
  letter-spacing: 0.01em;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus {
  color: var(--ink);
  border-color: var(--accent);
  text-decoration: none;
}

[data-theme="dark"] .site-nav {
  color: rgba(230, 237, 243, 0.75);
}

[data-theme="dark"] .site-nav a:hover,
[data-theme="dark"] .site-nav a:focus {
  color: var(--ink);
}

.site-nav .theme-toggle {
  margin-left: 0.5rem;
  color: inherit;
  padding: 0.3rem 0.55rem;
}

.site-content {
  padding: 3.1rem 0 3.5rem;
  flex: 1 0 auto;
}

.post-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.post-card {
  padding: 0 0 1.6rem;
  margin: 0 0 2.4rem;
  border-bottom: 1px solid var(--border);
}

.post-card:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.post-card h2 {
  margin: 0 0 0.65rem;
  font-size: 1.75rem;
  line-height: 1.28;
}

.post-card h2 a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.post-card h2 a:hover,
.post-card h2 a:focus {
  color: var(--ink);
}

.post-card p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

article.page,
article.post {
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

.page-header,
.post-header {
  margin-bottom: 2.2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.2rem;
}

.page-header h1,
.post-header h1 {
  margin: 0;
  font-size: 2.35rem;
  letter-spacing: 0.01em;
}

.post-header h1 {
  color: var(--accent);
}

.page-header h1 {
  color: var(--accent);
}

.post-meta,
.page-meta {
  margin-top: 0.75rem;
  font-size: 1rem;
  color: var(--muted);
}

.post-content,
.page-content {
  font-size: 1.08rem;
  color: var(--ink);
}

.post-content p,
.page-content p {
  margin: 0 0 1.5rem;
}

.post-content img,
.post-content svg,
.page-content img,
.page-content svg {
  display: block;
  margin: 2rem auto;
  max-width: 100%;
  height: auto;
}

.post-content p > img,
.post-content p > svg,
.page-content p > img,
.page-content p > svg {
  display: block;
  margin: 2rem auto;
}

.post-content pre {
  margin: 1.85rem 0;
  padding: 1.15rem 1.4rem;
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--paper);
}

.post-content pre code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  background: transparent;
  padding: 0;
  display: block;
}

.post-content .request-response-flow {
  margin: 2.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

.post-content .request-response-panel {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: none;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
}

.post-content .request-response-panel__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
}

.post-content .request-response-panel__column {
  padding: 1.15rem 1.5rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.post-content .request-response-panel__column + .request-response-panel__column {
  border-left: 1px solid var(--border);
}

.post-content .request-response-panel__badge {
  align-self: flex-start;
  display: inline-block;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.15rem 0.4rem;
  border-radius: 6px;
  background: var(--code-inline-bg);
  color: inherit;
}

.post-content .request-response-panel__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.post-content .request-response-panel__copy {
  background: none;
  border: 1px solid transparent;
  border-radius: 6px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.15rem 0.4rem;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.post-content .request-response-panel__copy:hover,
.post-content .request-response-panel__copy:focus-visible {
  background: var(--code-inline-bg);
  color: inherit;
  border-color: transparent;
  outline: none;
}

.post-content .request-response-panel__copy.is-copied {
  background: var(--code-inline-bg);
  color: var(--accent);
}

.post-content .request-response-panel__copy.is-error {
  background: var(--code-inline-bg);
  color: #c62828;
}

[data-theme="dark"] .post-content .request-response-panel__copy.is-error {
  color: #ff7b7b;
}

.post-content .request-response-panel pre {
  margin: 0;
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.post-content .request-response-panel pre + pre {
  margin-top: 0.55rem;
}

.post-content .request-response-panel pre code {
  padding: 0;
  background: none;
  font-size: 0.9em;
}

[data-theme="dark"] .post-content .request-response-panel {
  border-color: rgba(130, 150, 170, 0.3);
  box-shadow: none;
}

[data-theme="dark"] .post-content .request-response-panel__column + .request-response-panel__column {
  border-left-color: rgba(130, 150, 170, 0.3);
}

@media (max-width: 720px) {
  .post-content .request-response-panel__grid {
    grid-template-columns: 1fr;
  }

  .post-content .request-response-panel__column + .request-response-panel__column {
    border-left: none;
    border-top: 1px solid var(--border);
  }

  [data-theme="dark"] .post-content .request-response-panel__column + .request-response-panel__column {
    border-top-color: rgba(130, 150, 170, 0.3);
  }
}

.post-content code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  background: var(--code-inline-bg);
  color: inherit;
  padding: 0.15rem 0.4rem;
  border-radius: 6px;
}

.post-content :not(pre) > code {
  font-size: 0.85em;
}

code.highlighter-rouge {
  padding: 0.15rem 0.4rem;
  border-radius: 6px;
}

.highlighter-rouge {
  background: transparent;
}

.highlighter-rouge .highlight {
  margin: 0;
}

.post-content .highlighter-rouge {
  margin: 1.85rem 0;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--paper);
  overflow-x: auto;
}

.post-content .highlighter-rouge .highlight {
  background: transparent;
}

.post-content .highlighter-rouge pre {
  margin: 0;
  padding: 1.15rem 1.4rem;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.post-content .code-block {
  position: relative;
}

.post-content .code-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1rem 1.4rem 0.2rem;
  margin-bottom: 0;
  font-size: 0.78rem;
  letter-spacing: normal;
  text-transform: none;
  color: var(--muted);
}

.post-content .code-block__lang {
  font-weight: 500;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  letter-spacing: normal;
  text-transform: none;
  white-space: nowrap;
  padding: 0.15rem 0.4rem;
  border-radius: 6px;
  background: var(--code-inline-bg);
  color: inherit;
}

.post-content .code-block__copy {
  background: none;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: normal;
  padding: 0.15rem 0.4rem;
  text-transform: none;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.post-content .code-block__copy:hover,
.post-content .code-block__copy:focus-visible {
  background: var(--code-inline-bg);
  border-color: transparent;
  color: inherit;
  outline: none;
}

.post-content .code-block__copy.is-copied {
  background: var(--code-inline-bg);
  color: var(--accent);
}

.post-content .code-block__copy.is-error {
  background: var(--code-inline-bg);
  color: #c62828;
}

[data-theme="dark"] .post-content .code-block__copy.is-error {
  color: #ff7b7b;
}

.post-content .code-block pre {
  padding-top: 0.5rem;
  font-size: 0.9em;
}

/* Syntax highlighting — Rouge */
.highlight {
  background: var(--paper);
  color: var(--ink);
}

.highlight table {
  width: 100%;
  border-collapse: collapse;
}

.highlight table td {
  padding: 0 0.75rem 0 0;
}

.highlight table pre {
  margin: 0;
}

.highlight pre {
  margin: 0;
  background: transparent;
  color: inherit;
}

.highlight code {
  background: transparent;
  color: inherit;
}

.highlight .c,
.highlight .ch,
.highlight .cd,
.highlight .cpf,
.highlight .cm,
.highlight .c1,
.highlight .cs {
  color: #6a737d;
  font-style: italic;
}

.highlight .cp {
  color: #6a737d;
}

.highlight .err {
  color: #cf222e;
  background: rgba(207, 34, 46, 0.12);
}

.highlight .gd {
  color: #82071e;
  background: #ffebe9;
}

.highlight .gi {
  color: #116329;
  background: #dafbe1;
}

.highlight .gr,
.highlight .gt {
  color: #d1242f;
}

.highlight .gh,
.highlight .gu {
  color: #8250df;
}

.highlight .go {
  color: #6e7781;
}

.highlight .gp {
  color: #4c5563;
}

.highlight .gs {
  font-weight: 600;
}

.highlight .k,
.highlight .kc,
.highlight .kd,
.highlight .kn,
.highlight .kp,
.highlight .kr,
.highlight .kt,
.highlight .kv,
.highlight .ow,
.highlight .o {
  color: #cf222e;
  font-weight: 600;
}

.highlight .m,
.highlight .mb,
.highlight .mf,
.highlight .mh,
.highlight .mi,
.highlight .il,
.highlight .mo,
.highlight .mx,
.highlight .se {
  color: #116329;
}

.highlight .s,
.highlight .sa,
.highlight .sb,
.highlight .sc,
.highlight .sd,
.highlight .s1,
.highlight .s2,
.highlight .sh,
.highlight .si,
.highlight .sr,
.highlight .ss,
.highlight .sx,
.highlight .dl {
  color: #0a3069;
}

.highlight .na,
.highlight .no,
.highlight .nv,
.highlight .vc,
.highlight .vg,
.highlight .vi,
.highlight .vm {
  color: #953800;
}

.highlight .bp,
.highlight .nb,
.highlight .ni {
  color: #1b7c83;
}

.highlight .nc,
.highlight .nd,
.highlight .ne,
.highlight .nf,
.highlight .fm,
.highlight .nl,
.highlight .nn,
.highlight .nt {
  color: #8250df;
}

.highlight .w {
  color: #6e7781;
}

.highlight .p,
.highlight .pi {
  color: inherit;
}

[data-theme="dark"] .highlight {
  color: #e6edf3;
  background: var(--paper);
}

[data-theme="dark"] .highlight .c,
[data-theme="dark"] .highlight .ch,
[data-theme="dark"] .highlight .cd,
[data-theme="dark"] .highlight .cpf,
[data-theme="dark"] .highlight .cm,
[data-theme="dark"] .highlight .c1,
[data-theme="dark"] .highlight .cs {
  color: #8b949e;
  font-style: italic;
}

[data-theme="dark"] .highlight .cp {
  color: #8b949e;
}

[data-theme="dark"] .highlight .err {
  color: #ff7b72;
  background: rgba(255, 123, 114, 0.18);
}

[data-theme="dark"] .highlight .gd {
  color: #ffdcd7;
  background: rgba(248, 81, 73, 0.25);
}

[data-theme="dark"] .highlight .gi {
  color: #aff5b4;
  background: rgba(63, 185, 80, 0.22);
}

[data-theme="dark"] .highlight .gr,
[data-theme="dark"] .highlight .gt {
  color: #ffaba8;
}

[data-theme="dark"] .highlight .gh,
[data-theme="dark"] .highlight .gu {
  color: #d2a8ff;
}

[data-theme="dark"] .highlight .go {
  color: #7d8590;
}

[data-theme="dark"] .highlight .gp {
  color: #9ba7b6;
}

[data-theme="dark"] .highlight .gs {
  font-weight: 600;
}

[data-theme="dark"] .highlight .k,
[data-theme="dark"] .highlight .kc,
[data-theme="dark"] .highlight .kd,
[data-theme="dark"] .highlight .kn,
[data-theme="dark"] .highlight .kp,
[data-theme="dark"] .highlight .kr,
[data-theme="dark"] .highlight .kt,
[data-theme="dark"] .highlight .kv,
[data-theme="dark"] .highlight .ow,
[data-theme="dark"] .highlight .o {
  color: #ff7b72;
  font-weight: 600;
}

[data-theme="dark"] .highlight .m,
[data-theme="dark"] .highlight .mb,
[data-theme="dark"] .highlight .mf,
[data-theme="dark"] .highlight .mh,
[data-theme="dark"] .highlight .mi,
[data-theme="dark"] .highlight .il,
[data-theme="dark"] .highlight .mo,
[data-theme="dark"] .highlight .mx,
[data-theme="dark"] .highlight .se {
  color: #7ee787;
}

[data-theme="dark"] .highlight .s,
[data-theme="dark"] .highlight .sa,
[data-theme="dark"] .highlight .sb,
[data-theme="dark"] .highlight .sc,
[data-theme="dark"] .highlight .sd,
[data-theme="dark"] .highlight .s1,
[data-theme="dark"] .highlight .s2,
[data-theme="dark"] .highlight .sh,
[data-theme="dark"] .highlight .si,
[data-theme="dark"] .highlight .sr,
[data-theme="dark"] .highlight .ss,
[data-theme="dark"] .highlight .sx,
[data-theme="dark"] .highlight .dl {
  color: #4c8bf5;
}

[data-theme="dark"] .highlight .na,
[data-theme="dark"] .highlight .no,
[data-theme="dark"] .highlight .nv,
[data-theme="dark"] .highlight .vc,
[data-theme="dark"] .highlight .vg,
[data-theme="dark"] .highlight .vi,
[data-theme="dark"] .highlight .vm {
  color: #ffa657;
}

[data-theme="dark"] .highlight .bp,
[data-theme="dark"] .highlight .nb,
[data-theme="dark"] .highlight .ni {
  color: #79c0ff;
}

[data-theme="dark"] .highlight .nc,
[data-theme="dark"] .highlight .nd,
[data-theme="dark"] .highlight .ne,
[data-theme="dark"] .highlight .nf,
[data-theme="dark"] .highlight .fm,
[data-theme="dark"] .highlight .nl,
[data-theme="dark"] .highlight .nn,
[data-theme="dark"] .highlight .nt {
  color: #d2a8ff;
}

[data-theme="dark"] .highlight .w {
  color: #6e7681;
}

[data-theme="dark"] .highlight .p,
[data-theme="dark"] .highlight .pi {
  color: inherit;
}

.post-content blockquote {
  margin: 1.85rem 0;
  padding: 1.2rem 1.6rem;
  background: var(--paper);
  border-left: 4px solid var(--accent);
  color: inherit;
  font-style: italic;
  box-shadow: inset 10px 0 25px -25px rgba(31, 35, 40, 0.2);
}

[data-theme="dark"] .post-content blockquote {
  box-shadow: inset 10px 0 25px -25px rgba(225, 154, 85, 0.25);
}

.post-pagination {
  margin-top: 3rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.95rem;
}

.post-pagination__link {
  color: var(--accent);
  text-decoration: none;
  max-width: 48%;
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  gap: 0.4rem;
  transition: color 0.2s ease;
}

.post-pagination__link:hover,
.post-pagination__link:focus-visible {
  color: var(--ink);
  text-decoration: underline;
}

.post-pagination__link--prev {
  justify-content: flex-start;
}

.post-pagination__link--next {
  justify-content: flex-end;
  text-align: right;
}

.post-pagination__placeholder {
  visibility: hidden;
  max-width: 48%;
  display: inline-flex;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.75rem 0;
}

.site-footer {
  padding: 1.6rem 0 2.2rem;
  font-size: 0.94rem;
  color: var(--muted);
  text-align: center;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.home-intro {
  margin-bottom: 2.4rem;
  font-size: 1.05rem;
  color: var(--muted);
}

.home-intro p {
  margin: 0;
}

.page-content {
  color: var(--muted);
}

@media (max-width: 900px) {
  .container {
    padding: 0 clamp(1.25rem, 6vw, 2rem);
  }

  .site-header .container {
    flex-direction: column;
    align-items: flex-start;
    max-width: 960px;
    padding: 0 clamp(1.5rem, 6vw, 2.5rem);
  }

  .site-nav {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .post-card {
    padding-bottom: 1.4rem;
    margin-bottom: 2rem;
  }
}