/* ============================================================
   logparsing.com — light, elegant, professional theme
   ============================================================ */

:root {
  /* Palette */
  --c-bg: #f6f8fc;
  --c-surface: #ffffff;
  --c-surface-2: #eef2f9;
  --c-border: #d8e0ee;
  --c-border-strong: #b7c2d8;
  --c-text: #0f172a;
  --c-text-soft: #334155;
  --c-muted: #64748b;
  --c-primary: #2563eb;
  --c-primary-strong: #1d4ed8;
  --c-primary-soft: #e0eaff;
  --c-accent: #7c3aed;
  --c-accent-soft: #efe7ff;
  --c-success: #16a34a;
  --c-success-soft: #dcfce7;
  --c-warning: #d97706;
  --c-info: #0ea5e9;
  --c-info-soft: #e0f2fe;
  --c-danger: #dc2626;

  /* Code colors (light theme) */
  --code-bg: #f1f5fb;
  --code-bg-inline: #eef2f9;
  --code-text: #1e293b;
  --code-border: #dbe3f1;

  /* Layout */
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 18px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow: 0 6px 24px -10px rgba(15, 23, 42, 0.15),
    0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 24px 60px -24px rgba(37, 99, 235, 0.25),
    0 4px 14px -6px rgba(15, 23, 42, 0.12);

  --header-h: 68px;
  --content-max: 1400px;
  --article-max: 1180px;

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", SFMono-Regular, Menlo, Consolas,
    "Liberation Mono", monospace;

  --easing: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(124, 58, 237, 0.07), transparent 60%),
    radial-gradient(1000px 500px at -10% 10%, rgba(14, 165, 233, 0.07), transparent 60%),
    var(--c-bg);
}

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

a {
  color: var(--c-primary);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0 1.5px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: color 0.18s var(--easing), background-size 0.25s var(--easing);
}
a:hover, a:focus-visible {
  color: var(--c-primary-strong);
  background-size: 100% 1.5px;
}
a:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; border-radius: 3px; }

/* ============================================================ Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--c-border);
}
.site-header__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.06rem;
  color: var(--c-text);
  background: none;
}
.brand:hover { color: var(--c-primary-strong); background: none; }
.brand__logo { width: 36px; height: 36px; flex: 0 0 36px; }
.brand__name { letter-spacing: -0.01em; }
.brand__dot { color: var(--c-primary); }

.nav-toggle {
  margin-left: auto;
  display: none;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
}
.nav-toggle:hover { border-color: var(--c-primary); color: var(--c-primary); }
.nav-toggle svg { display: block; }

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
}
.site-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--c-text-soft);
  background: transparent !important;
  transition: background-color 0.18s var(--easing), color 0.18s var(--easing);
}
.site-nav a:hover {
  color: var(--c-primary-strong);
  background: var(--c-primary-soft) !important;
}
.site-nav a.is-active {
  color: var(--c-primary-strong);
  background: var(--c-primary-soft) !important;
}
.site-nav a svg { width: 18px; height: 18px; }

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-border);
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    gap: 4px;
    display: none;
    box-shadow: var(--shadow);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 10px 12px; }
}

/* ============================================================ Layout */
.page {
  flex: 1 0 auto;
  width: 100%;
}
.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================ Hero */
.hero {
  padding: clamp(40px, 6vw, 80px) 0 clamp(36px, 5vw, 64px);
}
.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: clamp(20px, 3vw, 32px);
}
.hero__art {
  width: clamp(120px, 16vw, 180px);
}
.hero__copy {
  max-width: 920px;
}
.hero__copy .cta-grid { text-align: left; }
.hero__copy .hero__lede { margin-inline: auto; max-width: 760px; }
.hero__eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-primary-strong);
  background: var(--c-primary-soft);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
  font-weight: 600;
}
.hero__title {
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  line-height: 1.1;
  margin: 0 0 18px;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #0ea5e9 0%, #2563eb 45%, #7c3aed 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__lede {
  font-size: clamp(1.05rem, 1.6vw, 1.18rem);
  color: var(--c-text-soft);
  margin: 0 0 14px;
}
.hero__art img { filter: drop-shadow(0 30px 60px rgba(37, 99, 235, 0.25)); }

.cta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 28px;
}
.cta {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  color: var(--c-text);
  background-image: none !important;
  transition: transform 0.2s var(--easing), border-color 0.2s var(--easing),
    box-shadow 0.2s var(--easing);
}
.cta:hover {
  transform: translateY(-2px);
  border-color: var(--c-primary);
  box-shadow: var(--shadow-lg);
  color: var(--c-text);
}
.cta__icon {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: linear-gradient(135deg, var(--accent, var(--c-primary)) 0%, var(--c-accent) 100%);
}
.cta__icon svg { width: 24px; height: 24px; }
.cta__body { display: flex; flex-direction: column; line-height: 1.35; }
.cta__title { font-weight: 700; font-size: 1.02rem; }
.cta__subtitle { color: var(--c-muted); font-size: 0.9rem; }

/* ============================================================ Sections list (home) */
.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 22px;
  margin: 40px 0 56px;
}
.section-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  background-image: none !important;
  color: var(--c-text);
  transition: transform 0.2s var(--easing), border-color 0.2s var(--easing),
    box-shadow 0.2s var(--easing);
}
.section-card:hover {
  transform: translateY(-3px);
  border-color: var(--c-primary);
  box-shadow: var(--shadow-lg);
  color: var(--c-text);
}
.section-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent, var(--c-primary)), var(--c-accent));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.section-card__title { margin: 0; font-size: 1.18rem; }
.section-card__summary { color: var(--c-text-soft); margin: 0; }
.section-card__more {
  margin-top: auto;
  font-weight: 600;
  color: var(--c-primary-strong);
}

/* ============================================================ Home intro */
.home-intro {
  max-width: 900px;
  margin: 0 auto 28px;
  text-align: center;
}
.home-intro h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}
.home-intro p { color: var(--c-text-soft); }

.section-heading {
  text-align: center;
  margin: 56px 0 22px;
}
.section-heading h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.section-heading p { color: var(--c-muted); margin: 0; }

/* ============================================================ Article (content pages) */
.article-wrap {
  max-width: var(--article-max);
  margin: 0 auto;
  padding: 36px 24px 64px;
}
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--c-muted);
  margin-bottom: 20px;
}
.breadcrumbs a {
  color: var(--c-text-soft);
  background: none;
}
.breadcrumbs a:hover { color: var(--c-primary-strong); }
.breadcrumbs .sep { color: var(--c-border-strong); }

.article-title {
  font-size: clamp(2rem, 3.6vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
  background: linear-gradient(120deg, #0ea5e9 0%, #2563eb 50%, #7c3aed 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.75;
}
.article-body > * + * { margin-top: 1.1em; }
.article-body h2 {
  font-size: clamp(1.4rem, 2.4vw, 1.8rem);
  margin-top: 2em;
  margin-bottom: 0.6em;
  letter-spacing: -0.01em;
  color: var(--c-text);
  border-bottom: 1px solid var(--c-border);
  padding-bottom: 8px;
}
.article-body h3 {
  font-size: clamp(1.18rem, 1.8vw, 1.4rem);
  margin-top: 1.8em;
  margin-bottom: 0.4em;
  color: var(--c-text);
}
.article-body h4 { font-size: 1.1rem; margin-top: 1.5em; }
.article-body p { color: var(--c-text-soft); margin: 0; }
.article-body ul, .article-body ol { padding-left: 1.4em; color: var(--c-text-soft); }
.article-body li { margin: 0.3em 0; }
.article-body blockquote {
  border-left: 4px solid var(--c-primary);
  padding: 4px 18px;
  background: var(--c-primary-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--c-text-soft);
  margin: 1em 0;
}
.article-body hr { border: 0; border-top: 1px solid var(--c-border); margin: 2em 0; }
.article-body img { border-radius: var(--radius); }

/* Header anchor links from markdown-it-anchor */
.article-body :is(h1, h2, h3, h4, h5, h6) a {
  color: inherit;
  background: none;
}
.article-body :is(h1, h2, h3, h4, h5, h6) a::after {
  content: " #";
  color: var(--c-border-strong);
  opacity: 0;
  transition: opacity 0.18s var(--easing);
  font-weight: 400;
}
.article-body :is(h1, h2, h3, h4, h5, h6):hover a::after { opacity: 1; }

/* anchor scroll offset — handled by html { scroll-padding-top }, no scroll-margin needed */

/* Inline code */
.article-body :not(pre) > code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--code-bg-inline);
  color: var(--code-text);
  border: 0;
}

/* Tables (wrapped by markdown-it custom renderer) */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
  box-shadow: var(--shadow-sm);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.article-body th, .article-body td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--c-border);
}
.article-body th {
  background: var(--c-surface-2);
  color: var(--c-text);
  font-weight: 600;
}
.article-body tr:last-child td { border-bottom: 0; }
.article-body tr:hover td { background: var(--c-surface-2); }

/* Task lists (togglable checkboxes) */
.article-body ul.contains-task-list {
  list-style: none;
  padding-left: 0;
}
.article-body ul.contains-task-list li.task-list-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 12px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  margin: 6px 0;
  transition: background-color 0.18s var(--easing), border-color 0.18s var(--easing);
}
.article-body ul.contains-task-list li.task-list-item:hover {
  border-color: var(--c-primary);
}
.article-body ul.contains-task-list li.task-list-item::marker { content: ""; }
.article-body ul.contains-task-list li.task-list-item input[type="checkbox"] {
  margin-top: 4px;
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  border: 1.5px solid var(--c-border-strong);
  border-radius: 5px;
  background: #fff;
  cursor: pointer;
  position: relative;
  transition: background 0.18s var(--easing), border-color 0.18s var(--easing);
}
.article-body ul.contains-task-list li.task-list-item input[type="checkbox"]:hover {
  border-color: var(--c-primary);
}
.article-body ul.contains-task-list li.task-list-item input[type="checkbox"]:checked {
  background: var(--c-primary);
  border-color: var(--c-primary);
}
.article-body ul.contains-task-list li.task-list-item input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  top: 2px; left: 5px;
  width: 5px; height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.article-body ul.contains-task-list li.task-list-item.is-checked {
  text-decoration: line-through;
  color: var(--c-muted);
  background: var(--c-surface-2);
}

/* Code blocks */
figure.code-block {
  position: relative;
  margin: 1.2em 0;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
figure.code-block::before {
  content: attr(data-lang);
  position: absolute;
  top: 8px;
  left: 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-muted);
  background: rgba(255, 255, 255, 0.6);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--c-border);
  z-index: 2;
}
figure.code-block pre {
  margin: 0;
  padding: 42px 18px 18px;
  overflow-x: auto;
  background: transparent !important;
  color: var(--code-text);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.6;
  tab-size: 2;
}
figure.code-block code { background: transparent !important; color: inherit; padding: 0; }
.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 3;
  background: var(--c-surface);
  color: var(--c-text-soft);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: background 0.18s var(--easing), color 0.18s var(--easing),
    border-color 0.18s var(--easing);
}
.copy-btn:hover { background: var(--c-primary-soft); color: var(--c-primary-strong); border-color: var(--c-primary); }
.copy-btn.is-copied { background: var(--c-success-soft); color: var(--c-success); border-color: var(--c-success); }

/* Light Prism theme (custom, blends with site) */
.token.comment, .token.prolog, .token.doctype, .token.cdata { color: #8a99b3; font-style: italic; }
.token.punctuation { color: #475569; }
.token.property, .token.tag, .token.boolean, .token.number, .token.constant, .token.symbol, .token.deleted { color: #b45309; }
.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin, .token.inserted { color: #0e7490; }
.token.operator, .token.entity, .token.url, .language-css .token.string, .style .token.string { color: #7c3aed; }
.token.atrule, .token.attr-value, .token.keyword { color: #1d4ed8; font-weight: 600; }
.token.function, .token.class-name { color: #c2410c; font-weight: 600; }
.token.regex, .token.important, .token.variable { color: #be123c; }
.token.important, .token.bold { font-weight: 700; }
.token.italic { font-style: italic; }

/* Mermaid */
.mermaid {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  margin: 1.2em 0;
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

/* KaTeX */
.katex { font-size: 1.05em; }
.katex-display {
  overflow-x: auto;
  padding: 6px 0;
}

/* FAQ accordion */
.article-body details.faq {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 0;
  margin: 0.6em 0;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.18s var(--easing);
}
.article-body details.faq[open] { border-color: var(--c-primary); }
.article-body details.faq > summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 18px;
  font-weight: 600;
  color: var(--c-text);
  display: flex;
  align-items: center;
  gap: 12px;
}
.article-body details.faq > summary::-webkit-details-marker { display: none; }
.article-body details.faq > summary::before {
  content: "";
  flex: 0 0 16px;
  width: 16px; height: 16px;
  background: var(--c-primary-soft);
  border-radius: 4px;
  position: relative;
  transition: transform 0.2s var(--easing), background 0.18s var(--easing);
}
.article-body details.faq > summary::after {
  content: "+";
  margin-left: auto;
  color: var(--c-primary);
  font-size: 1.4rem;
  line-height: 1;
  transition: transform 0.2s var(--easing);
}
.article-body details.faq[open] > summary::after { transform: rotate(45deg); }
.article-body details.faq > .faq-body {
  padding: 0 18px 16px 18px;
  color: var(--c-text-soft);
}
.article-body details.faq > .faq-body > *:first-child { margin-top: 0; }

/* Related links / siblings */
.related {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--c-border);
}
.related h2 {
  font-size: 1.2rem;
  margin: 0 0 14px;
  color: var(--c-text);
}
.related__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}
.related__item {
  display: block;
  padding: 14px 16px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background-image: none !important;
  color: var(--c-text);
  font-weight: 600;
  transition: border-color 0.18s var(--easing), transform 0.18s var(--easing);
}
.related__item:hover {
  border-color: var(--c-primary);
  transform: translateY(-1px);
  color: var(--c-primary-strong);
}
.related__item small { display: block; color: var(--c-muted); font-weight: 400; margin-top: 2px; }

/* ============================================================ Footer */
.site-footer {
  margin-top: auto;
  background: linear-gradient(180deg, transparent 0%, rgba(37, 99, 235, 0.04) 100%);
  border-top: 1px solid var(--c-border);
  padding: 36px 0 24px;
}
.site-footer__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.2fr repeat(3, minmax(0, 1fr));
  gap: 28px;
}
@media (max-width: 880px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .site-footer__inner { grid-template-columns: 1fr; }
}
.site-footer__brand { display: flex; flex-direction: column; gap: 10px; }
.site-footer__brand .brand { font-size: 1.1rem; }
.site-footer__tag { color: var(--c-muted); font-size: 0.92rem; max-width: 320px; }
.site-footer__col h4 {
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-muted);
  margin: 0 0 10px;
}
.site-footer__col a {
  display: block;
  padding: 4px 0;
  font-size: 0.95rem;
  color: var(--c-text-soft);
  background: none;
}
.site-footer__col a:hover { color: var(--c-primary-strong); }
.site-footer__bottom {
  max-width: var(--content-max);
  margin: 22px auto 0;
  padding: 18px 24px 0;
  border-top: 1px solid var(--c-border);
  color: var(--c-muted);
  font-size: 0.86rem;
  text-align: center;
}

/* ============================================================ Misc */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}