/* ==========================================================================
   Tokyo Mistakes theme
   Base variables (light-first: :root defaults to "day" values so the site
   still looks right without JS). JS toggles data-theme="night"|"day" on
   <html>, which switches the custom-property blocks below instantly.
   ========================================================================== */

:root {
  /* ---- Tokyo Night DAY (light) — default ---- */
  --color-bg: #e1e2e7;
  --color-bg-alt: #d5d6db;
  --color-surface: #ffffff;
  --color-surface-alt: #eceef2;
  --color-text: #3760bf;
  --color-text-strong: #1a2749;
  --color-muted: #6172b0;
  --color-border: #b4b5b9;
  --color-link: #2e7de9;
  --color-link-hover: #358aff;
  --color-code-bg: #eceef2;
  --color-code-fg: #3760bf;
  --color-blockquote-accent: #9854f1;

  --color-red: #f52a65;
  --color-green: #587539;
  --color-yellow: #8c6c3e;
  --color-blue: #2e7de9;
  --color-magenta: #9854f1;
  --color-cyan: #007197;
  --color-orange: #a27629;

  --color-success: #587539;
  --color-warning: #8c6c3e;
  --color-danger: #f52a65;
  --color-info: #2e7de9;

  --header-bg: #ffffff;
  --header-fg: #3760bf;
  --footer-bg: #d5d6db;
  --masthead-overlay: rgba(55, 96, 191, 0.55);

  --shadow-color: rgba(55, 96, 191, 0.12);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

:root[data-theme="night"] {
  /* ---- Tokyo Night NIGHT (dark, storm-based) ---- */
  --color-bg: #1a1b26;
  --color-bg-alt: #16161e;
  --color-surface: #1f2335;
  --color-surface-alt: #292e42;
  --color-text: #c0caf5;
  --color-text-strong: #ffffff;
  --color-muted: #565f89;
  --color-border: #3b4261;
  --color-link: #7aa2f7;
  --color-link-hover: #89ddff;
  --color-code-bg: #16161e;
  --color-code-fg: #c0caf5;
  --color-blockquote-accent: #bb9af7;

  --color-red: #f7768e;
  --color-green: #9ece6a;
  --color-yellow: #e0af68;
  --color-blue: #7aa2f7;
  --color-magenta: #bb9af7;
  --color-cyan: #7dcfff;
  --color-orange: #ff9e64;

  --color-success: #9ece6a;
  --color-warning: #e0af68;
  --color-danger: #f7768e;
  --color-info: #7aa2f7;

  --header-bg: #16161e;
  --header-fg: #c0caf5;
  --footer-bg: #16161e;
  --masthead-overlay: rgba(22, 22, 30, 0.6);

  --shadow-color: rgba(0, 0, 0, 0.45);
}

:root[data-theme="day"] {
  --color-bg: #e1e2e7;
  --color-bg-alt: #d5d6db;
  --color-surface: #ffffff;
  --color-surface-alt: #eceef2;
  --color-text: #3760bf;
  --color-text-strong: #1a2749;
  --color-muted: #6172b0;
  --color-border: #b4b5b9;
  --color-link: #2e7de9;
  --color-link-hover: #358aff;
  --color-code-bg: #eceef2;
  --color-code-fg: #3760bf;
  --color-blockquote-accent: #9854f1;
  --header-bg: #ffffff;
  --header-fg: #3760bf;
  --footer-bg: #d5d6db;
  --masthead-overlay: rgba(55, 96, 191, 0.55);
  --shadow-color: rgba(55, 96, 191, 0.12);
}

/* ==========================================================================
   Reset / base
   ========================================================================== */

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  transition: background-color 0.2s ease, color 0.2s ease;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-link);
  text-decoration: none;
}
a:hover,
a:focus {
  color: var(--color-link-hover);
  text-decoration: underline;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-strong);
  line-height: 1.25;
  margin-top: 1.6em;
  margin-bottom: 0.6em;
}

code, pre, kbd {
  font-family: var(--font-mono);
}

code {
  background: var(--color-code-bg);
  color: var(--color-code-fg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

pre {
  background: var(--color-code-bg);
  color: var(--color-code-fg);
  padding: 1em;
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid var(--color-border);
}
pre code {
  background: none;
  padding: 0;
}

blockquote {
  margin: 1.2em 0;
  padding: 0.4em 1em;
  border-left: 4px solid var(--color-blockquote-accent);
  background: var(--color-surface-alt);
  color: var(--color-muted);
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2em 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2em 0;
}
th, td {
  border: 1px solid var(--color-border);
  padding: 0.5em 0.8em;
  text-align: left;
}
th {
  background: var(--color-surface-alt);
}

/* ==========================================================================
   Skip links / accessibility
   ========================================================================== */

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 1000;
  padding: 0.6em 1em;
  background: var(--color-surface);
  color: var(--color-text);
  border: 2px solid var(--color-link);
}
.skip-link:focus {
  left: 0.5em;
  top: 0.5em;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ==========================================================================
   Layout shell
   ========================================================================== */

.wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.page-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 800px) {
  .page-grid {
    grid-template-columns: 1fr;
  }
}

main.content {
  min-width: 0;
}

/* ==========================================================================
   Masthead / header
   ========================================================================== */

.masthead {
  background: var(--header-bg);
  color: var(--header-fg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.25rem;
  max-width: 1200px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--header-fg);
}
.site-title:hover {
  text-decoration: none;
  color: var(--color-link-hover);
}

.greedy-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.greedy-nav__list {
  display: flex;
  gap: 1.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.greedy-nav__list a {
  color: var(--header-fg);
  font-weight: 500;
}
.greedy-nav__list a:hover {
  color: var(--color-link-hover);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* ==========================================================================
   Theme toggle button
   ========================================================================== */

.theme-toggle {
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  color: var(--color-text);
  border-radius: 999px;
  padding: 0.4em 0.9em;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}
.theme-toggle:hover {
  border-color: var(--color-link);
  color: var(--color-link);
}

.search-toggle {
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  color: var(--color-text);
  border-radius: 999px;
  padding: 0.4em 0.7em;
  cursor: pointer;
  font-size: 0.9rem;
}
.search-toggle:hover {
  border-color: var(--color-link);
  color: var(--color-link);
}

/* ==========================================================================
   Search modal
   ========================================================================== */

.search-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 8vh;
  z-index: 200;
}
.search-modal.is-open {
  display: flex;
}
.search-modal__panel {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  width: min(600px, 90vw);
  padding: 1.25rem;
  box-shadow: 0 10px 40px var(--shadow-color);
}
.search-modal__input {
  width: 100%;
  padding: 0.7em 0.9em;
  font-size: 1.05rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-text);
}
.search-modal__results {
  margin-top: 1rem;
  max-height: 50vh;
  overflow-y: auto;
}
.search-result {
  padding: 0.7em 0.4em;
  border-bottom: 1px solid var(--color-border);
}
.search-result a {
  font-weight: 600;
}
.search-result p {
  margin: 0.2em 0 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}
.search-modal__close {
  float: right;
  background: none;
  border: none;
  color: var(--color-muted);
  cursor: pointer;
  font-size: 1.1rem;
}

/* ==========================================================================
   Masthead-overlay / splash / hero
   ========================================================================== */

.splash-hero {
  position: relative;
  background: linear-gradient(160deg, var(--color-blue), var(--color-magenta));
  color: #fff;
  padding: 5rem 1.25rem;
  text-align: center;
  overflow: hidden;
}
.splash-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--masthead-overlay);
}
.splash-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
}
.splash-hero h1 {
  color: #fff;
  font-size: 2.6rem;
  margin-top: 0;
}
.splash-hero p {
  font-size: 1.2rem;
  opacity: 0.92;
}
.splash-hero .btn {
  margin-top: 1.5rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-block;
  padding: 0.6em 1.4em;
  border-radius: 6px;
  background: var(--color-link);
  color: #fff;
  font-weight: 600;
  border: none;
  cursor: pointer;
}
.btn:hover {
  background: var(--color-link-hover);
  text-decoration: none;
  color: #fff;
}
.btn--outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.7);
  color: #fff;
}

/* ==========================================================================
   Cards / archive grid & list
   ========================================================================== */

.archive-controls {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}
.archive-controls button {
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  color: var(--color-text);
  padding: 0.3em 0.8em;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
}
.archive-controls button.is-active {
  background: var(--color-link);
  color: #fff;
  border-color: var(--color-link);
}

.entries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}
.entries-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.entries-list[hidden],
.entries-grid[hidden] {
  display: none;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px var(--shadow-color);
}
.card__image {
  aspect-ratio: 16/9;
  background: var(--color-surface-alt);
  overflow: hidden;
}
.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.card__body {
  padding: 1rem 1.2rem 1.3rem;
}
.card__title {
  margin-top: 0;
  font-size: 1.15rem;
}
.card__excerpt {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.entries-list .card {
  flex-direction: row;
}
.entries-list .card__image {
  width: 200px;
  min-width: 200px;
  aspect-ratio: auto;
}
@media (max-width: 600px) {
  .entries-list .card {
    flex-direction: column;
  }
  .entries-list .card__image {
    width: 100%;
    min-width: 0;
  }
}

/* ==========================================================================
   Post meta / tags / categories chips
   ========================================================================== */

.post-meta {
  color: var(--color-muted);
  font-size: 0.88rem;
  display: flex;
  gap: 0.9em;
  flex-wrap: wrap;
  margin-bottom: 1.2em;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4em;
  margin: 0.6em 0;
  list-style: none;
  padding: 0;
}
.chip {
  display: inline-block;
  padding: 0.2em 0.75em;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #fff;
}
.chip--0 { background: var(--color-magenta); }
.chip--1 { background: var(--color-green); }
.chip--2 { background: var(--color-orange); }
.chip--3 { background: var(--color-red); }
.chip--4 { background: var(--color-blue); }

/* ==========================================================================
   Notices
   ========================================================================== */

.notice {
  border-radius: 8px;
  padding: 1em 1.2em;
  margin: 1.2em 0;
  border-left: 4px solid;
  background: var(--color-surface-alt);
}
.notice--success { border-color: var(--color-success); }
.notice--warning { border-color: var(--color-warning); }
.notice--danger  { border-color: var(--color-danger); }
.notice--info    { border-color: var(--color-info); }

/* ==========================================================================
   Sidebar / author profile
   ========================================================================== */

.author-profile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.4rem;
  text-align: center;
  position: sticky;
  top: 6rem;
}
.author-profile__avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  margin: 0 auto 0.8rem;
  overflow: hidden;
  background: var(--color-surface-alt);
}
.author-profile__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.author-profile__name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text-strong);
}
.author-profile__bio {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin: 0.5em 0 1em;
}
.author-profile__links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4em;
  text-align: left;
}
.author-profile__links a {
  font-size: 0.88rem;
}

.sidebar-toc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.2rem;
  margin-top: 1.5rem;
  font-size: 0.88rem;
}
.sidebar-toc h3 {
  margin-top: 0;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
}
.sidebar-toc ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
}
.sidebar-toc ul ul {
  padding-left: 1em;
}
.sidebar-toc li {
  margin: 0.3em 0;
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */

.breadcrumbs {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 1.2rem;
}
.breadcrumbs a {
  color: var(--color-muted);
}
.breadcrumbs a:hover {
  color: var(--color-link);
}
.breadcrumbs .sep {
  margin: 0 0.4em;
}

/* ==========================================================================
   Share buttons
   ========================================================================== */

.share-buttons {
  display: flex;
  gap: 0.6em;
  margin: 1.5em 0;
  flex-wrap: wrap;
}
.share-buttons a {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.4em 0.9em;
  font-size: 0.85rem;
  color: var(--color-text);
}
.share-buttons a:hover {
  border-color: var(--color-link);
  color: var(--color-link);
  text-decoration: none;
}

/* ==========================================================================
   Related posts / pagination
   ========================================================================== */

.related-posts {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.related-posts__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.pagination {
  display: flex;
  justify-content: space-between;
  margin: 2.5rem 0 1rem;
  gap: 1rem;
}
.pagination a, .pagination span {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.5em 1em;
  font-size: 0.9rem;
}
.pagination a:hover {
  border-color: var(--color-link);
  color: var(--color-link);
  text-decoration: none;
}
.pagination .disabled {
  opacity: 0.4;
}

.post-pager {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}
.post-pager a {
  flex: 1;
  min-width: 200px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.9em 1.1em;
}
.post-pager a:hover {
  border-color: var(--color-link);
  text-decoration: none;
}
.post-pager__label {
  display: block;
  color: var(--color-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.post-pager__next {
  text-align: right;
}

/* ==========================================================================
   Comments placeholder
   ========================================================================== */

.comments-placeholder {
  margin-top: 2.5rem;
  padding: 1.5rem;
  border: 1px dashed var(--color-border);
  border-radius: 10px;
  color: var(--color-muted);
  text-align: center;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--color-border);
  margin-top: 3rem;
  padding: 2rem 1.25rem;
  font-size: 0.88rem;
  color: var(--color-muted);
}
.site-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.site-footer__links {
  list-style: none;
  display: flex;
  gap: 1rem;
  padding: 0;
  margin: 0;
}

/* ==========================================================================
   404 page
   ========================================================================== */

.error-page {
  text-align: center;
  padding: 5rem 1.25rem;
}
.error-page h1 {
  font-size: 5rem;
  margin: 0;
  color: var(--color-magenta);
}

/* ==========================================================================
   Page article content spacing
   ========================================================================== */

.page__content {
  font-size: 1.05rem;
}
.page__title {
  margin-bottom: 0.2em;
}
