/* ------------------------------------------------------------------ tokens */
:root {
  color-scheme: light;
  --bg: #fff;
  --text: #000;
  --text-light: #828282;
  --theme: #1565c0;
  --divider: rgba(0, 0, 0, 0.1);
  --card-bg: #fff;
  --code-bg: rgba(21, 101, 192, 0.06);
  --footer-bg: #1c1c1d;
  --footer-text: #e8e8e8;
  --footer-link: #fff;
  --nav-bg: rgba(255, 255, 255, 0.95);
  --table-stripe: #fafafa;
}

/* ------------------------------------------------------------------- base */
* { box-sizing: border-box; }

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main { flex: 1 0 auto; }

.container {
  width: 100%;
  max-width: 930px;
  margin: 0 auto;
  padding: 0 15px;
}

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

a:hover { color: var(--theme); text-decoration: underline; }

h1, h2, h3, h4, h5, h6 {
  font-family: "Roboto Slab", Georgia, serif;
  font-weight: 400;
  color: var(--text);
  line-height: 1.3;
}

hr { border: 0; border-top: 1px solid var(--divider); margin: 2rem 0; }

img { max-width: 100%; height: auto; }

code, pre {
  font-family: "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.875em;
}

code {
  background-color: var(--code-bg);
  padding: 0.15em 0.35em;
  border-radius: 3px;
}

pre {
  background-color: var(--code-bg);
  padding: 1rem;
  border-radius: 4px;
  overflow-x: auto;
}

pre code { background: none; padding: 0; }

blockquote {
  margin: 1.5rem 0;
  padding: 0.4rem 1.2rem;
  border-left: 3px solid var(--theme);
  color: var(--text-light);
}

/* -------------------------------------------------------------------- nav */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--nav-bg);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--divider);
}

.nav-inner {
  display: flex;
  align-items: center;
  min-height: 56px;
}

.nav-brand {
  font-family: "Roboto Slab", Georgia, serif;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
  margin-right: auto;
}

.nav-brand:hover { color: var(--theme); text-decoration: none; }

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 400;
}

.nav-link:hover { color: var(--theme); text-decoration: none; }
.nav-link.active { color: var(--theme); font-weight: 500; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 32px;
  height: 32px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 22px;
  background-color: var(--text);
}

/* ------------------------------------------------------------------- page */
.page { padding-top: 6rem; padding-bottom: 3rem; }

.post-header { margin-bottom: 2rem; }

.post-title {
  font-size: 2.6rem;
  font-weight: 300;
  letter-spacing: -0.5px;
  margin: 0 0 0.4rem;
}

.post-title .fw-bold { font-weight: 700; }

.desc, .post-meta {
  color: var(--text-light);
  font-size: 0.95rem;
  margin: 0;
}

/* --------------------------------------------------------------- profile */
.profile { width: 22%; max-width: 200px; }
.profile.float-right { float: right; margin-left: 3.5rem; margin-bottom: 1.5rem; }
.profile figure { margin: 0; }
.profile img { width: 100%; }

.rounded { border-radius: 6px; }
.z-depth-1 { box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12); }

.profile .more-info {
  margin-top: 0.6rem;
  font-family: "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--text-light);
  word-break: break-word;
}

.profile .more-info p { margin: 0; }
.clearfix::after { content: ""; display: table; clear: both; }

/* ------------------------------------------------------- post + page body */
.post-content { line-height: 1.7; }
.post-content h2 { margin-top: 2.2rem; font-size: 1.6rem; }
.post-content h3 { margin-top: 1.8rem; font-size: 1.25rem; }
.post-content img { display: block; margin: 1.8rem auto; }

.post-content table {
  margin: 1.8rem 0;
  border-collapse: collapse;
  font-size: 0.95rem;
  display: block;
  overflow-x: auto;
  max-width: 100%;
}

.post-content th, .post-content td {
  padding: 6px 14px;
  border: 1px solid var(--divider);
  text-align: left;
}

.post-content thead th { font-weight: 500; }
.post-content tbody tr:nth-child(even) { background-color: var(--table-stripe); }

/* -------------------------------------------------------- post prev/next */
.post-navi { display: flex; gap: 1rem; }
.post-navi-item { width: 50%; color: var(--text) !important; font-size: 0.92rem; }
.post-navi-item:hover { text-decoration: none; color: var(--theme) !important; }
.post-navi .nav-next { text-align: right; }
.post-navi-label { font-size: 0.8rem; color: var(--text-light); }

/* -------------------------------------------------------------- archive  */
.year-heading {
  font-size: 1.5rem;
  margin: 2.2rem 0 0.8rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--divider);
}

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

.post-list li {
  display: flex;
  gap: 1rem;
  padding: 0.4rem 0;
  align-items: baseline;
}

.post-list .post-date {
  flex: 0 0 5.5rem;
  color: var(--text-light);
  font-size: 0.85rem;
  font-family: "SFMono-Regular", Menlo, Consolas, monospace;
}

.post-list a { color: var(--text); }
.post-list a:hover { color: var(--theme); text-decoration: none; }

/* ------------------------------------------------------------ entry list */
.entry { padding: 1.1rem 0; border-bottom: 1px solid var(--divider); }
.entry:last-child { border-bottom: 0; }
.entry-title { font-size: 1.05rem; font-weight: 500; margin: 0 0 0.2rem; }
.entry-meta { color: var(--text-light); font-size: 0.88rem; margin: 0 0 0.4rem; }
.entry p { margin: 0.3rem 0; }

.badge {
  display: inline-block;
  font-size: 0.75rem;
  border: 1px solid var(--theme);
  color: var(--theme);
  border-radius: 3px;
  padding: 0 0.45rem;
  margin-right: 0.3rem;
  line-height: 1.5;
}

/* ----------------------------------------------------------------- footer */
.site-footer {
  flex-shrink: 0;
  background-color: var(--footer-bg);
  color: var(--footer-text);
  font-size: 0.85rem;
  padding: 1.2rem 0;
  text-align: center;
}

.site-footer a { color: var(--footer-link); text-decoration: underline; }

/* ----------------------------------------------------------------- mobile */
@media (max-width: 700px) {
  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.2rem;
    padding: 0.8rem 15px 1rem;
    background-color: var(--bg);
    border-bottom: 1px solid var(--divider);
  }

  .nav-links.open { display: flex; }

  .profile { width: 100%; max-width: 260px; }
  .profile.float-right { float: none; margin-left: 0; }
  .profile img { max-width: 260px; }
  .profile .more-info { margin-bottom: 1.2rem; }

  .post-title { font-size: 2rem; }
  .post-list li { flex-direction: column; gap: 0; }
  .post-navi { flex-direction: column; }
  .post-navi-item { width: 100%; }
  .post-navi .nav-next { text-align: left; }
}