/*
Theme Name: Meridian
Theme URI: https://example.com/meridian
Author: Cosmo
Author URI: https://example.com
Description: A calm, content-first editorial and gallery theme. Generous whitespace, a confident serif masthead, and an emphasis on imagery — equally at home for writing or for showing photography. Includes a built-in light/dark toggle, a customizable accent colour, full-width and wide block alignment, and a widgetised sidebar.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: meridian
Tags: blog, portfolio, photography, editorial, two-columns, custom-logo, custom-menu, featured-images, translation-ready, threaded-comments, full-width-template, block-styles, wide-blocks
*/

/* =========================================================================
   Design tokens
   ========================================================================= */
:root {
  --color-bg:        #FBFAF8;
  --color-surface:   #FFFFFF;
  --color-ink:       #1A1A1A;
  --color-muted:     #6B6B6B;
  --color-faint:     #8E8B85;
  --color-hairline:  #E5E2DC;
  --color-accent:    #3D5A52;   /* overridden by Customizer */
  --color-accent-ink:#ffffff;

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --measure: 42rem;          /* reading column */
  --measure-wide: 60rem;     /* wide-aligned content */
  --measure-full: 78rem;     /* outer site width */

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius: 4px;
  --shadow: 0 1px 2px rgba(20,20,15,0.04), 0 8px 24px rgba(20,20,15,0.06);

  --transition: 180ms ease;
}

html[data-theme="dark"] {
  --color-bg:        #14140F;
  --color-surface:   #1C1C18;
  --color-ink:       #EDEAE3;
  --color-muted:     #A9A59C;
  --color-faint:     #7E7A70;
  --color-hairline:  #2E2E27;
  --color-accent-ink:#0E0E0A;
  --shadow: 0 1px 2px rgba(0,0,0,0.3), 0 8px 24px rgba(0,0,0,0.35);
}

/* =========================================================================
   Reset & base
   ========================================================================= */
*, *::before, *::after { box-sizing: border-box; }

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

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition), color var(--transition);
}

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

a { color: inherit; text-decoration: none; }
.entry-content a,
.comment-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 0.06em;
  transition: opacity var(--transition);
}
.entry-content a:hover { opacity: 0.7; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 560;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-2);
}

p, ul, ol, blockquote, pre, figure, table { margin: 0 0 var(--space-3); }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Accessibility: skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-ink);
  color: var(--color-bg);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; }

.screen-reader-text {
  border: 0; clip: rect(1px,1px,1px,1px);
  clip-path: inset(50%); height: 1px; width: 1px;
  margin: -1px; overflow: hidden; padding: 0; position: absolute;
}

/* =========================================================================
   Layout helpers
   ========================================================================= */
.site {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.wrap {
  width: 100%;
  max-width: var(--measure-full);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.content-area { flex: 1 0 auto; padding-block: var(--space-5); }

.layout-with-sidebar {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
}
@media (min-width: 60rem) {
  .has-sidebar .layout-with-sidebar {
    grid-template-columns: minmax(0, 1fr) 17rem;
  }
}

/* =========================================================================
   Masthead — the signature
   ========================================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 86%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-hairline);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-block: var(--space-2);
}

.site-branding { display: flex; align-items: baseline; gap: 0.75rem; min-width: 0; }

.site-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1rem + 1.6vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1;
}
.site-title a { display: inline-flex; align-items: center; }
.custom-logo { max-height: 48px; width: auto; }

.site-description {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.875rem;
  letter-spacing: 0.01em;
}
@media (max-width: 40rem) { .site-description { display: none; } }

/* Navigation */
.site-nav { display: flex; align-items: center; gap: var(--space-3); }

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius);
  color: var(--color-ink);
  padding: 0.45rem 0.6rem;
  cursor: pointer;
  font: inherit;
  line-height: 1;
}

.primary-menu {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: 0; padding: 0;
}
.primary-menu a {
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  padding-block: 0.25rem;
  border-bottom: 1.5px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}
.primary-menu a:hover,
.primary-menu .current-menu-item > a {
  border-color: var(--color-accent);
}
.primary-menu .sub-menu {
  list-style: none; margin: 0; padding: 0.5rem 0;
  position: absolute;
  background: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 12rem;
  display: none;
  z-index: 60;
}
.primary-menu li { position: relative; }
.primary-menu li:hover > .sub-menu,
.primary-menu li:focus-within > .sub-menu { display: block; }
.primary-menu .sub-menu a { display: block; padding: 0.4rem 1rem; border: 0; }

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-hairline);
  border-radius: 999px;
  width: 2.25rem; height: 2.25rem;
  display: inline-grid; place-items: center;
  cursor: pointer;
  color: var(--color-ink);
  transition: border-color var(--transition), background var(--transition);
}
.theme-toggle:hover { border-color: var(--color-accent); }
.theme-toggle svg { width: 1.05rem; height: 1.05rem; }
.theme-toggle .icon-sun { display: none; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
html[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

@media (max-width: 48rem) {
  .menu-toggle { display: inline-block; }
  .primary-menu {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-hairline);
    box-shadow: var(--shadow);
    padding: var(--space-2) var(--space-3);
    display: none;
  }
  .primary-menu.is-open { display: flex; }
  .primary-menu a { padding-block: 0.65rem; border-bottom: 1px solid var(--color-hairline); }
  .primary-menu .sub-menu { position: static; box-shadow: none; border: 0; display: block; padding-left: var(--space-2); }
}

/* =========================================================================
   Post listing (index / archive)
   ========================================================================= */
.archive-header { margin-bottom: var(--space-5); max-width: var(--measure); }
.archive-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-accent);
  margin: 0 0 var(--space-1);
  font-weight: 600;
}
.archive-title { font-size: clamp(1.8rem, 1.2rem + 2.4vw, 2.8rem); }
.archive-description { color: var(--color-muted); }

.posts-list {
  display: grid;
  gap: var(--space-5);
}

.post-card { display: grid; gap: var(--space-3); }
@media (min-width: 44rem) {
  .post-card.has-thumb {
    grid-template-columns: 15rem 1fr;
    gap: var(--space-4);
    align-items: start;
  }
}
.post-card__thumb { overflow: hidden; border-radius: var(--radius); background: var(--color-hairline); }
.post-card__thumb img {
  width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3;
  transition: transform 400ms ease;
}
.post-card:hover .post-card__thumb img { transform: scale(1.03); }

.post-card__eyebrow {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-accent);
  font-weight: 600;
}
.post-card__title {
  font-size: clamp(1.35rem, 1.1rem + 1vw, 1.75rem);
  margin: 0.35rem 0 0.5rem;
}
.post-card__title a { transition: opacity var(--transition); }
.post-card__title a:hover { opacity: 0.7; }
.post-card__excerpt { color: var(--color-muted); margin: 0 0 var(--space-2); }

.entry-meta {
  display: flex; flex-wrap: wrap; gap: 0.4rem 1rem;
  color: var(--color-faint);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}
.entry-meta a:hover { color: var(--color-accent); }

/* =========================================================================
   Single post / page
   ========================================================================= */
.single-main, .page-main { padding-block: var(--space-5); }

.entry-header { max-width: var(--measure); margin: 0 auto var(--space-4); text-align: center; }
.entry-header .archive-eyebrow { text-align: center; }
.entry-title { font-size: clamp(2rem, 1.4rem + 3vw, 3.2rem); margin-bottom: var(--space-2); }
.entry-header .entry-meta { justify-content: center; }

.featured-media { margin: 0 0 var(--space-5); }
.featured-media img {
  width: 100%; border-radius: var(--radius);
  max-height: 70vh; object-fit: cover; margin-inline: auto;
}

.entry-content {
  max-width: var(--measure);
  margin-inline: auto;
}
.entry-content > * { margin-inline: auto; }
.entry-content h2 { font-size: 1.7rem; margin-top: var(--space-4); }
.entry-content h3 { font-size: 1.35rem; margin-top: var(--space-3); }

.entry-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-3);
  margin-inline: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-ink);
}
.entry-content pre {
  background: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius);
  padding: var(--space-3);
  overflow-x: auto;
  font-size: 0.9rem;
}
.entry-content code { font-size: 0.92em; }
.entry-content :not(pre) > code {
  background: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: 3px;
  padding: 0.1em 0.35em;
}
.entry-content img { border-radius: var(--radius); }
.entry-content figcaption { color: var(--color-faint); font-size: 0.85rem; text-align: center; }

.entry-content ul, .entry-content ol { padding-left: 1.4rem; }
.entry-content li { margin-bottom: 0.4rem; }

.entry-content hr { border: 0; border-top: 1px solid var(--color-hairline); margin: var(--space-4) auto; }

/* Block alignment support */
.alignwide { max-width: var(--measure-wide); }
.alignfull { max-width: 100vw; width: 100vw; margin-left: 50%; transform: translateX(-50%); }
.alignleft  { float: left;  margin: 0.3rem var(--space-3) var(--space-2) 0; }
.alignright { float: right; margin: 0.3rem 0 var(--space-2) var(--space-3); }
.aligncenter { margin-inline: auto; }

.entry-footer {
  max-width: var(--measure);
  margin: var(--space-4) auto 0;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-hairline);
  display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-3);
  font-size: 0.85rem; color: var(--color-muted);
}
.tag-links a {
  display: inline-block;
  border: 1px solid var(--color-hairline);
  border-radius: 999px;
  padding: 0.15rem 0.7rem;
  margin: 0 0.3rem 0.3rem 0;
  font-size: 0.78rem;
  transition: border-color var(--transition);
}
.tag-links a:hover { border-color: var(--color-accent); }

/* Post navigation */
.post-navigation {
  max-width: var(--measure-wide);
  margin: var(--space-5) auto 0;
  display: grid; gap: var(--space-2);
  grid-template-columns: 1fr 1fr;
}
.post-navigation a { display: block; }
.post-navigation .nav-next { text-align: right; }
.post-navigation .nav-subtitle { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--color-faint); }
.post-navigation .nav-title { font-family: var(--font-display); font-size: 1.05rem; }
@media (max-width: 36rem) { .post-navigation { grid-template-columns: 1fr; } .post-navigation .nav-next { text-align: left; } }

/* =========================================================================
   Pagination
   ========================================================================= */
.pagination {
  margin-top: var(--space-5);
  display: flex; justify-content: center;
}
.pagination .nav-links { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.pagination .page-numbers {
  display: inline-grid; place-items: center;
  min-width: 2.5rem; height: 2.5rem; padding: 0 0.6rem;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition);
}
.pagination .page-numbers:hover { border-color: var(--color-accent); }
.pagination .page-numbers.current {
  background: var(--color-accent); color: var(--color-accent-ink); border-color: var(--color-accent);
}

/* =========================================================================
   Sidebar / widgets
   ========================================================================= */
.sidebar { font-size: 0.95rem; }
.widget { margin-bottom: var(--space-4); }
.widget-title {
  font-family: var(--font-body);
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--color-faint); font-weight: 600;
  margin-bottom: var(--space-2);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-hairline);
}
.widget ul { list-style: none; margin: 0; padding: 0; }
.widget li { padding: 0.35rem 0; border-bottom: 1px solid var(--color-hairline); }
.widget li:last-child { border-bottom: 0; }
.widget a:hover { color: var(--color-accent); }

/* Search form */
.search-form { display: flex; gap: 0.5rem; }
.search-form .search-field {
  flex: 1;
  background: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius);
  padding: 0.55rem 0.75rem;
  color: var(--color-ink);
  font: inherit; font-size: 0.95rem;
}
.search-form .search-submit {
  background: var(--color-accent); color: var(--color-accent-ink);
  border: 0; border-radius: var(--radius);
  padding: 0 1rem; cursor: pointer; font: inherit; font-size: 0.9rem;
}

/* =========================================================================
   Comments
   ========================================================================= */
.comments-area { max-width: var(--measure); margin: var(--space-5) auto 0; }
.comments-title, .comment-reply-title { font-size: 1.4rem; margin-bottom: var(--space-3); }
.comment-list { list-style: none; margin: 0; padding: 0; }
.comment-list ol { list-style: none; }
.comment-body { padding: var(--space-2) 0; border-bottom: 1px solid var(--color-hairline); }
.comment-author { display: flex; align-items: center; gap: 0.6rem; font-weight: 600; }
.comment-author .avatar { border-radius: 999px; }
.comment-metadata { color: var(--color-faint); font-size: 0.8rem; }
.comment .children { list-style: none; margin-left: var(--space-3); padding-left: var(--space-2); border-left: 1px solid var(--color-hairline); }
.comment-respond { margin-top: var(--space-4); }
.comment-form label { display: block; font-size: 0.85rem; color: var(--color-muted); margin-bottom: 0.3rem; }
.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius);
  padding: 0.6rem 0.75rem;
  color: var(--color-ink); font: inherit;
  margin-bottom: var(--space-2);
}
.comment-form .submit, .wp-block-button__link, button.submit {
  background: var(--color-accent); color: var(--color-accent-ink);
  border: 0; border-radius: var(--radius);
  padding: 0.6rem 1.4rem; cursor: pointer; font: inherit;
}

/* =========================================================================
   Footer
   ========================================================================= */
.site-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--color-hairline);
  padding-block: var(--space-4);
  margin-top: var(--space-5);
  color: var(--color-muted);
  font-size: 0.875rem;
}
.site-footer__inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: var(--space-2);
}
.footer-menu { list-style: none; display: flex; gap: var(--space-3); margin: 0; padding: 0; }
.footer-menu a:hover { color: var(--color-accent); }
.footer-credit { color: var(--color-faint); }

/* =========================================================================
   Utilities
   ========================================================================= */
.button, .more-link {
  display: inline-block;
  font-size: 0.85rem; letter-spacing: 0.02em;
  color: var(--color-accent);
  border-bottom: 1.5px solid var(--color-accent);
  padding-bottom: 1px;
}
.sticky-badge {
  display: inline-block; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--color-accent); font-weight: 600; margin-right: 0.5rem;
}
.no-results { max-width: var(--measure); margin-inline: auto; }