/* ============================================================
   pynezz.dev - Technopunk Design System
   Clean flat surfaces, monospace type, sharp lines, subtle glow.
   ============================================================ */

/* --- Tokens ----------------------------------------------- */
:root {
  --bg:         #101018;
  --surface:    #17171f;
  --surface-2:  #1e1e28;
  --border:     #34343f;
  --border-hi:  #48485a;
  --accent:     #5eead4;
  --accent-dim: rgba(94, 234, 212, 0.15);
  --accent-mid: rgba(94, 234, 212, 0.35);
  --red:        #f472b6;
  --yellow:     #fbbf24;
  --green:      #34d399;
  --text:       #d4d4d8;
  --text-hi:    #fafafa;
  --text-lo:    #92929c;
  --font:       ui-monospace, 'SFMono-Regular', 'JetBrains Mono', 'Cascadia Code', 'DejaVu Sans Mono', Menlo, Consolas, monospace;
  --ease:       150ms ease;
}

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

::selection {
  background: var(--accent-dim);
  color: var(--text-hi);
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--border-hi) var(--bg);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-weight: 400;
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--ease);
}
a:hover { color: var(--text-hi); }

ul, ol { list-style: none; }
img, svg { display: block; max-width: 100%; }

/* --- Layout ----------------------------------------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 48px;
  padding: 0 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.site-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.site-title:hover { color: var(--accent); }

.dev-badge {
  padding: 0.15rem 0.45rem;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-mid);
  background: var(--accent-dim);
}

.layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: calc(100vh - 48px);
  max-width: 1400px;
  margin: 0 auto;
}

/* --- Category colors ---------------------------------------
   Each content category (blog/projects/snippets/apps) gets a
   consistent accent from the existing semantic palette - reused as a
   navigation cue via data-cat, not as a new color language. Falls
   back to the neutral border/text tones for any category not listed
   here, so a new content/ directory never renders unstyled. */
[data-cat="blog"]     { --cat: var(--accent); }
[data-cat="projects"] { --cat: var(--green); }
[data-cat="snippets"] { --cat: var(--yellow); }
[data-cat="apps"]     { --cat: var(--red); }

.nav-category-title[data-cat]::after {
  content: '';
  width: 6px;
  height: 6px;
  margin-left: auto;
  background: var(--cat, var(--text-lo));
}

.category-heading[data-cat],
.page-title[data-cat],
.sitemap-category-title[data-cat] {
  border-bottom-color: var(--cat, var(--border));
}

.entry-card[data-cat],
.app-tile[data-cat] {
  border-top: 2px solid var(--cat, var(--border));
}

/* --- Sidebar ---------------------------------------------- */
.sidebar {
  position: sticky;
  top: 48px;
  height: calc(100vh - 48px);
  overflow-y: auto;
  padding: 1rem 0.75rem 1rem 0;
  border-right: 1px solid var(--border);
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-category {
  border: none;
  background: none;
}

.nav-category-title {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-lo);
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: color var(--ease);
}
.nav-category-title::-webkit-details-marker { display: none; }
/* Hidden below the desktop icon rail: the label text alone (below) already
   names the category there, so a redundant letter glyph would just read
   as noise in front of it - the icon rail media query is what reveals
   .nav-cat-icon and hides .nav-cat-label instead. */
.nav-cat-icon { display: none; }
.nav-category-title::before {
  content: '›';
  font-size: 0.75rem;
  transition: transform var(--ease);
}
details[open] .nav-category-title::before { transform: rotate(90deg); }
.nav-category-title:hover { color: var(--text); }

.nav-entries {
  padding: 0 0 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.nav-entry { display: flex; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.3rem 0.75rem 0.3rem 1.5rem;
  font-size: 0.8rem;
  color: var(--text-lo);
  transition: color var(--ease), background var(--ease);
}
.nav-link::before {
  content: '';
  flex-shrink: 0;
  width: 5px;
  height: 5px;
  background: var(--text-lo);
  transition: background var(--ease);
}
.nav-link:hover {
  color: var(--text);
  background: var(--surface-2);
}
.nav-link:hover::before { background: var(--accent); }

.nav-link.type-md::before    { background: var(--accent); }
.nav-link.type-gohtml::before { background: var(--green); }
.nav-link.type-html::before  { background: var(--red); }

/* --- Content area ----------------------------------------- */
.content {
  padding: 2rem 2rem 4rem;
  min-width: 0;
}

/* --- Cards ------------------------------------------------ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.entry-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: border-color var(--ease);
}
.entry-card:hover {
  border-color: var(--accent-mid);
}

.entry-card-link {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.4rem;
  padding: 1.1rem 1.25rem;
  color: var(--text);
}

.entry-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0 1.25rem 1rem;
}

.entry-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-hi);
}

.entry-card-summary {
  font-size: 0.8rem;
  color: var(--text-lo);
  line-height: 1.55;
  flex: 1;
}

.entry-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.6rem;
  border-top: 1px solid var(--border);
}

/* --- Tags ------------------------------------------------- */
.tag {
  padding: 0.1rem 0.45rem;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-dim);
  letter-spacing: 0.03em;
}

.entry-date {
  font-size: 0.7rem;
  color: var(--text-lo);
}

/* --- Home ------------------------------------------------- */
.home {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.home-hero {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.home-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-hi);
  letter-spacing: 0.02em;
}

.home-subtitle {
  color: var(--text-lo);
  font-size: 0.85rem;
}

.category-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.category-heading {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-lo);
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

/* --- Category page ---------------------------------------- */
.category-page {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.page-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-hi);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

/* --- Entry page ------------------------------------------- */
.entry-page {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  max-width: 68ch;
}

/* Mounted apps (sveltemount) aren't prose - the 68ch reading width was
   squeezing the game's own two-column layout well below its own desktop
   breakpoint. The app brings its own max-width/centering internally. */
.entry-page--app { max-width: none; }

.entry-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.entry-title {
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-hi);
}

.entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-lo);
}

/* --- Prose ------------------------------------------------ */
.entry-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  color: var(--text);
  line-height: 1.75;
}

.entry-body h1, .entry-body h2, .entry-body h3,
.entry-body h4, .entry-body h5, .entry-body h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-hi);
  margin-top: 1.25em;
}
.entry-body h1 { font-size: 1.4rem; }
.entry-body h2 { font-size: 1.15rem; border-bottom: 1px solid var(--border); padding-bottom: 0.3rem; }
.entry-body h3 { font-size: 1rem; }
.entry-body h4 { font-size: 0.9rem; color: var(--text); }

.entry-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--accent-mid);
  transition: text-decoration-color var(--ease);
}
.entry-body a:hover { text-decoration-color: var(--accent); }

.entry-body ul, .entry-body ol { padding-left: 1.5rem; }
.entry-body ul { list-style: disc; }
.entry-body ol { list-style: decimal; }
.entry-body li { margin-bottom: 0.2rem; }

.entry-body strong { font-weight: 600; color: var(--text-hi); }
.entry-body em { font-style: italic; }

.entry-body hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 1rem 0;
}

/* Inline code */
.entry-body code {
  font-size: 0.9em;
  padding: 0.1em 0.3em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--accent);
}

/* Code blocks */
.entry-body pre,
.entry-body .chroma {
  border: 1px solid var(--border);
  overflow-x: auto;
  padding: 1rem 1.25rem;
  background: var(--surface);
}

.entry-body pre code {
  font-size: 0.9rem;
  line-height: 1.6;
  background: none;
  border: none;
  padding: 0;
  color: var(--text);
}

/* Blockquote */
.entry-body blockquote {
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-left: 3px solid var(--accent);
  color: var(--text);
  font-style: italic;
}
.entry-body blockquote p { color: var(--text); }

/* Tables */
.entry-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.entry-body th, .entry-body td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.entry-body th {
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-lo);
  background: var(--surface);
}

/* --- Callouts --------------------------------------------- */
.callout {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-left: 3px solid;
  font-size: 0.85rem;
}
.callout-title {
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.callout-info { border-left-color: var(--accent); }
.callout-info .callout-title { color: var(--accent); }

.callout-warn { border-left-color: var(--yellow); }
.callout-warn .callout-title { color: var(--yellow); }

.callout-tip { border-left-color: var(--green); }
.callout-tip .callout-title { color: var(--green); }

/* --- Topbar nav (header) ------------------------------------
   about/tags/dashboard/apps moved into .utility-drawer - .topbar-link
   itself stays, it's reused by the dashboard's sitemap section. */
.topbar-link {
  color: var(--text-lo);
  transition: color var(--ease);
}
.topbar-link:hover { color: var(--text-hi); }

/* --- Auth status (header) ---------------------------------- */
.auth-status {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
  font-size: 0.75rem;
}

.auth-user {
  color: var(--accent);
}

.logout-form { display: contents; }

.auth-link {
  background: none;
  border: none;
  padding: 0;
  color: var(--text-lo);
  font-family: var(--font);
  font-size: 0.75rem;
  cursor: pointer;
  transition: color var(--ease);
}
.auth-link:hover { color: var(--text-hi); }

/* --- Forms (register / login) ------------------------------ */
.auth-page {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 48ch;
}

.auth-intro, .auth-footnote {
  color: var(--text-lo);
  font-size: 0.85rem;
}

.code-block {
  padding: 0.75rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 0.85rem;
  overflow-x: auto;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-field label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-lo);
}

.form-field input {
  padding: 0.55rem 0.7rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-hi);
  font-family: var(--font);
  font-size: 0.85rem;
  transition: border-color var(--ease);
}
.form-field input:focus {
  outline: none;
  border-color: var(--accent-mid);
}

.btn-primary {
  align-self: flex-start;
  padding: 0.55rem 1.25rem;
  background: var(--accent-dim);
  border: 1px solid var(--accent-mid);
  color: var(--accent);
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease), color var(--ease);
}
.btn-primary:hover {
  background: var(--accent-mid);
  color: var(--text-hi);
}

/* --- Tags page ------------------------------------------------ */
.tags-page {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.tags-empty {
  color: var(--text-lo);
  font-size: 0.85rem;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tag-cloud-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 0.8rem;
  transition: border-color var(--ease);
}
.tag-cloud-item:hover {
  border-color: var(--accent-mid);
  color: var(--accent);
}

.tag-count {
  color: var(--text-lo);
  font-size: 0.7rem;
}

/* --- Dashboard ------------------------------------------------ */
.dashboard-page {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.stat-tile {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 1.1rem;
  background: var(--surface);
}

a.stat-tile-link {
  transition: background var(--ease);
}
a.stat-tile-link:hover {
  background: var(--surface-2);
}

.stat-value {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-hi);
}

.stat-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-lo);
}

.dashboard-widgets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.widget-box {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
}

.widget-title {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-lo);
}

.clock-display {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.03em;
}

.weather-select {
  padding: 0.45rem 0.6rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-hi);
  font-family: var(--font);
  font-size: 0.8rem;
}
.weather-select:focus {
  outline: none;
  border-color: var(--accent-mid);
}

.weather-output {
  font-size: 1.1rem;
  color: var(--text);
}

.sitemap-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.sitemap-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.sitemap-category {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.sitemap-category-title {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-lo);
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--border);
}

.sitemap-entry-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

/* --- About page ---------------------------------------------- */
.about-page {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 68ch;
}

/* --- Vault (protected demo page) ---------------------------- */
.vault-page {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 60ch;
}

.vault-body {
  color: var(--text-lo);
  font-size: 0.85rem;
  line-height: 1.65;
}
.vault-body code {
  font-size: 0.9em;
  padding: 0.1em 0.3em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--accent);
}

/* --- 404 -------------------------------------------------- */
.not-found {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-height: 50vh;
  text-align: center;
}
.not-found h1 {
  font-size: 4rem;
  font-weight: 700;
  color: var(--text-lo);
}
.not-found p {
  color: var(--text-lo);
  font-size: 0.9rem;
}
.not-found a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 0.8rem;
  transition: border-color var(--ease);
}
.not-found a:hover {
  border-color: var(--accent-mid);
  color: var(--accent);
}

/* --- Apps/tools page (app-store grid) ------------------------ */
.apps-page {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.apps-intro {
  color: var(--text-lo);
  font-size: 0.85rem;
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.25rem;
}

.app-tile {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: border-color var(--ease);
}
.app-tile:hover {
  border-color: var(--accent-mid);
}

.app-tile-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  background: var(--accent-dim);
  border: 1px solid var(--accent-mid);
  color: var(--accent);
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
}

.app-tile-body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
  min-width: 0;
}

.app-tile-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.app-tile-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-hi);
}

.app-status {
  flex-shrink: 0;
  padding: 0.1rem 0.5rem;
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid var(--border-hi);
  color: var(--text-lo);
}
.app-status-live {
  color: var(--green);
  border-color: var(--green);
}
.app-status-demo {
  color: var(--yellow);
  border-color: var(--yellow);
}
.app-status-source {
  color: var(--text-lo);
  border-color: var(--border-hi);
}

.app-tile-summary {
  color: var(--text-lo);
  font-size: 0.85rem;
  line-height: 1.55;
  flex: 1;
}

.app-tile-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: 0.5rem;
}

.app-tile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.app-tile-cta {
  margin-left: auto;
}

/* --- Utility drawer ------------------------------------------
   A collapsible <details> pinned to the right edge - no JS needed, same
   disclosure pattern as .nav-category. The tab is the one deliberate break
   from "no rounded corners" - both left corners get a normal convex curve,
   built from the site's own surfaces/accent rather than a skeuomorphic
   material. Site nav + the Observatory grade live in the panel it opens,
   instead of an always-on floating badge. */
.utility-drawer {
  position: fixed;
  right: 0;
  bottom: 4.5rem;
  z-index: 500;
}

.utility-tab {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 130px;
  list-style: none;
  cursor: pointer;
  user-select: none;
  background: var(--surface-2);
  border: 1px solid var(--border-hi);
  border-right: none;
  border-radius: 16px 0 0 16px;
  transition: border-color var(--ease), background var(--ease);
}
.utility-tab::-webkit-details-marker { display: none; }
.utility-tab:hover {
  border-color: var(--accent-mid);
  background: var(--surface);
}

.utility-tab-label {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
}

.utility-panel {
  position: absolute;
  right: 28px;
  bottom: 0;
  min-width: 190px;
  padding: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
}

.utility-divider {
  height: 1px;
  background: var(--border);
  margin: 0.4rem 0;
}

.utility-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.4rem;
  color: var(--text-lo);
  font-size: 0.7rem;
  text-decoration: none;
  transition: color var(--ease);
}
.utility-item:hover { color: var(--text-hi); }

.utility-item-label {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.62rem;
  color: var(--text-lo);
}

.utility-item-grade {
  font-weight: 700;
  color: var(--accent);
  border: 1px solid var(--accent-mid);
  padding: 0.05rem 0.35rem;
  background: var(--accent-dim);
}
.utility-item-grade--plus {
  border-width: 2px;
  border-style: double;
}

.utility-item-score {
  color: var(--text-lo);
  font-size: 0.65rem;
}

.utility-item-empty {
  padding: 0.3rem 0.4rem;
  color: var(--text-lo);
  font-size: 0.75rem;
}

/* --- Responsive ------------------------------------------- */
@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: fixed;
    top: 48px;
    left: -260px;
    width: 240px;
    height: calc(100vh - 48px);
    background: var(--surface);
    border-right: 1px solid var(--border);
    z-index: 90;
    padding: 1rem;
    transition: left var(--ease);
  }
  .sidebar.open { left: 0; }
  .content { padding: 1.25rem 1rem; }
  .topbar { padding: 0 1rem; }
  .auth-status { font-size: 0.7rem; gap: 0.5rem; }
  .home-title { font-size: 1.25rem; }
  .entry-title { font-size: 1.2rem; }
  .card-grid { grid-template-columns: 1fr; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .layout { grid-template-columns: 200px 1fr; }
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
}

/* --- Desktop icon rail --------------------------------------
   Wide viewports get a slim category-icon column instead of the full
   text tree: hover or focus a category to flyout its entries, rather
   than spending permanent width on labels that are only needed while
   choosing where to go. Sidebar content stays in the DOM either way -
   this is a visual collapse, not a JS-gated one, so it degrades to
   plain links with no script and stays keyboard-reachable. */
@media (min-width: 1025px) {
  .layout { grid-template-columns: 52px 1fr; }
  .sidebar { overflow: visible; padding: 1rem 0; }
  .sidebar-nav { gap: 6px; }

  .nav-category { position: relative; }
  .nav-category-title {
    justify-content: center;
    padding: 0.5rem 0;
  }
  .nav-category-title::before,
  .nav-category-title[data-cat]::after {
    display: none;
  }
  .nav-cat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--cat, var(--text-lo));
    border: 1px solid var(--cat, var(--border));
    background: var(--surface-2);
    transition: color var(--ease), border-color var(--ease);
  }
  .nav-category-title:hover .nav-cat-icon { color: var(--text-hi); }
  .nav-cat-label {
    position: absolute;
    width: 1px; height: 1px;
    margin: -1px; padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  /* Kept in the layout regardless of the <details> open/closed state
     (native disclosure behavior would otherwise fully unrender it on
     close) - visibility here is purely the hover/focus flyout below. */
  .nav-entries {
    display: flex !important;
    position: absolute;
    top: 0;
    left: 100%;
    margin-left: 0.5rem;
    min-width: 190px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 0.4rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-4px);
    transition: opacity var(--ease), transform var(--ease), visibility var(--ease);
    z-index: 50;
  }
  .nav-category:hover .nav-entries,
  .nav-category:focus-within .nav-entries {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
  }
  .nav-link { white-space: nowrap; }
}