/*
Theme Name: Chord Start
Description: A warm editorial WordPress theme for beginner guitar content — parchment header with tagline, asymmetric hero section on the homepage, and serif-driven article reading experience.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: chord-start
*/

/* ── Custom Properties ────────────────────────────────────── */
:root {
  --c-bg:        #FEFCF5;
  --c-bg-alt:    #F5EDD5;
  --c-bg-card:   #FFFFFF;
  --c-primary:   #2C1A06;
  --c-accent:    #B8690A;
  --c-accent-dk: #8C4E06;
  --c-accent-lt: #FDF2DC;
  --c-text:      #1C1409;
  --c-text-2:    #4A3416;
  --c-text-3:    #7A6140;
  --c-border:    #E0D0AD;
  --c-border-lt: #EDE3C8;

  --ff-sans:  system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --ff-serif: Georgia, Cambria, 'Times New Roman', Times, serif;

  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semi:   600;
  --fw-bold:   700;

  --r-sm: 3px;
  --r-md: 6px;
  --r-lg: 10px;

  --shadow-card: 0 1px 3px rgba(44,26,6,.07), 0 4px 14px rgba(44,26,6,.06);

  --container: 1140px;
  --content:   760px;
}

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--ff-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
a:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 3px; border-radius: 2px; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* ── Container ────────────────────────────────────────────── */
.container {
  width: 100%; max-width: var(--container);
  margin-inline: auto; padding-inline: 1rem;
}
@media (min-width: 640px)  { .container { padding-inline: 1.5rem; } }
@media (min-width: 1024px) { .container { padding-inline: 2rem; } }

/* ── Typography ───────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--ff-serif);
  font-weight: var(--fw-bold);
  line-height: 1.25;
  color: var(--c-primary);
}
p { margin-bottom: 1.25rem; }
p:last-child { margin-bottom: 0; }

/* ─────────────────────────────────────────────────────────── */
/* HEADER — light warm parchment, two-line brand + nav        */
/* ─────────────────────────────────────────────────────────── */
.site-header {
  background: var(--c-bg-alt);
  border-bottom: 3px solid var(--c-accent);
  position: sticky;
  top: 0;
  z-index: 100;
}

/* Brand row */
.header-brand-row .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
  gap: 1rem;
}

.site-brand {
  display: flex;
  flex-direction: column;
  gap: 1px;
  text-decoration: none;
  flex-shrink: 0;
}
.brand-name {
  font-family: var(--ff-serif);
  font-size: 1.375rem;
  font-weight: var(--fw-bold);
  color: var(--c-primary);
  line-height: 1;
  letter-spacing: -.01em;
}
.brand-name .brand-accent { color: var(--c-accent); }
.brand-tagline {
  font-size: .6875rem;
  color: var(--c-text-3);
  font-style: italic;
  display: none;
  line-height: 1;
}
@media (min-width: 640px) { .brand-tagline { display: block; } }

/* Nav row — hidden on mobile, shown inline on desktop */
.header-nav-row {
  background: rgba(0,0,0,.03);
  border-top: 1px solid var(--c-border-lt);
  display: none;
}
@media (min-width: 1024px) { .header-nav-row { display: block; } }
.header-nav-row .container { display: flex; align-items: center; height: 42px; }

/* Nav toggle (mobile only) */
#nav-toggle {
  display: flex; flex-direction: column; gap: 5px;
  padding: 8px; color: var(--c-primary);
  border-radius: var(--r-sm); transition: background .15s;
}
@media (min-width: 1024px) { #nav-toggle { display: none; } }
#nav-toggle:hover { background: var(--c-border-lt); }
#nav-toggle .bar {
  display: block; width: 22px; height: 2px;
  background: currentColor; transition: transform .2s, opacity .2s; border-radius: 2px;
}
#nav-toggle[aria-expanded="true"] .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#nav-toggle[aria-expanded="true"] .bar:nth-child(2) { opacity: 0; }
#nav-toggle[aria-expanded="true"] .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile flyout menu */
#primary-menu {
  display: none;
  position: absolute; top: 61px; left: 0; right: 0;
  background: var(--c-bg-alt);
  border-top: 1px solid var(--c-border);
  padding: .625rem 0;
  box-shadow: 0 6px 20px rgba(44,26,6,.12);
}
#primary-menu.is-open { display: block; }

/* Desktop nav (inside nav row) */
@media (min-width: 1024px) {
  #primary-menu {
    display: flex !important;
    position: static; background: none;
    border-top: none; padding: 0; box-shadow: none;
  }
}

#primary-menu ul { list-style: none; }
#primary-menu > ul,
#primary-menu ul:first-child { display: flex; flex-direction: column; }
@media (min-width: 1024px) {
  #primary-menu > ul,
  #primary-menu ul:first-child { flex-direction: row; gap: .125rem; }
}

#primary-menu ul > li { position: relative; }
#primary-menu ul > li > a {
  display: block; padding: .55rem 1.25rem;
  color: var(--c-text-2); text-decoration: none;
  font-size: .9rem; font-weight: var(--fw-medium);
  transition: color .15s, background .15s;
}
@media (min-width: 1024px) {
  #primary-menu ul > li > a { padding: .35rem .75rem; border-radius: var(--r-sm); }
}
#primary-menu ul > li > a:hover { color: var(--c-accent); background: var(--c-accent-lt); }
#primary-menu ul > li.current-menu-item > a,
#primary-menu ul > li.current-cat > a { color: var(--c-accent); font-weight: var(--fw-semi); }

#primary-menu ul .sub-menu { display: none; }
@media (min-width: 1024px) {
  #primary-menu ul > li:hover > .sub-menu,
  #primary-menu ul > li:focus-within > .sub-menu { display: block; }
  #primary-menu .sub-menu {
    position: absolute; top: 100%; left: 0; min-width: 210px;
    background: var(--c-bg-card);
    border: 1px solid var(--c-border); border-top: 2px solid var(--c-accent);
    border-radius: 0 0 var(--r-md) var(--r-md);
    box-shadow: var(--shadow-card); z-index: 200; padding: .375rem 0;
  }
  #primary-menu .sub-menu li { display: block; }
  #primary-menu .sub-menu a {
    padding: .5rem 1rem; font-size: .875rem;
    color: var(--c-text-2); display: block; white-space: nowrap;
  }
  #primary-menu .sub-menu a:hover { color: var(--c-accent); background: var(--c-accent-lt); }
}

/* ── Breadcrumb ───────────────────────────────────────────── */
.breadcrumb { padding: .875rem 0; font-size: .8125rem; color: var(--c-text-3); }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: .25rem .4rem; list-style: none; }
.breadcrumb li { display: flex; align-items: center; gap: .4rem; }
.breadcrumb li:not(:last-child)::after { content: '/'; color: var(--c-border); }
.breadcrumb a { color: var(--c-accent); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* ── Main ─────────────────────────────────────────────────── */
#main { flex: 1; padding-block: 0 4rem; }

/* ─────────────────────────────────────────────────────────── */
/* HERO SECTION — asymmetric text/image split for first post   */
/* ─────────────────────────────────────────────────────────── */
.hero-section {
  background: var(--c-bg-alt);
  border-bottom: 1px solid var(--c-border);
  padding-block: 2.5rem 3rem;
  margin-bottom: 3rem;
}
.hero-inner {
  display: grid;
  gap: 2rem;
}
@media (min-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr 380px;
    align-items: center;
  }
}
.hero-body { display: flex; flex-direction: column; gap: .875rem; }
.hero-meta { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.hero-title {
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  line-height: 1.2;
  margin: 0;
}
.hero-title a { color: var(--c-primary); text-decoration: none; }
.hero-title a:hover { color: var(--c-accent); }
.hero-excerpt {
  font-size: 1.0625rem; color: var(--c-text-2);
  line-height: 1.7; max-width: 520px; margin: 0;
}
.hero-date { font-size: .875rem; color: var(--c-text-3); }
.hero-read-more {
  display: inline-block;
  padding: .5rem 1.25rem;
  background: var(--c-accent); color: #fff;
  border-radius: var(--r-md); text-decoration: none;
  font-size: .9375rem; font-weight: var(--fw-semi);
  align-self: flex-start; transition: background .15s;
}
.hero-read-more:hover { background: var(--c-accent-dk); color: #fff; }

.hero-media {
  border-radius: var(--r-lg); overflow: hidden;
}
.hero-media img {
  width: 100%; aspect-ratio: 16/9; object-fit: cover;
  transition: transform .4s;
}
.hero-media:hover img { transform: scale(1.03); }
.hero-media-placeholder {
  width: 100%; aspect-ratio: 16/9;
  background: var(--c-bg); border-radius: var(--r-lg);
}

/* ── Category Badge ───────────────────────────────────────── */
.cat-badge {
  display: inline-block;
  font-size: .6875rem; font-weight: var(--fw-semi);
  text-transform: uppercase; letter-spacing: .07em;
  color: #fff; background: var(--c-accent);
  padding: 3px 10px; border-radius: var(--r-sm);
  text-decoration: none; white-space: nowrap;
}
.cat-badge:hover { background: var(--c-accent-dk); }

/* ── Posts Header (archives) ──────────────────────────────── */
.posts-header { margin-bottom: 2rem; padding-top: 2rem; }
.posts-header h1, .section-heading {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  margin-bottom: .375rem;
  display: flex; align-items: center; gap: .75rem;
}
.section-heading::after {
  content: '';
  flex: 1; height: 2px;
  background: var(--c-border);
}
.term-description { font-size: .9375rem; color: var(--c-text-2); max-width: 680px; line-height: 1.65; margin-top: .5rem; }

/* ── Posts Grid (2-col) ───────────────────────────────────── */
.posts-grid { display: grid; gap: 1.5rem; }
@media (min-width: 540px) { .posts-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .posts-grid { gap: 2rem; } }

/* ─────────────────────────────────────────────────────────── */
/* POST CARD — sharp editorial, left accent bar on hover      */
/* ─────────────────────────────────────────────────────────── */
.post-card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border-lt);
  border-radius: var(--r-sm);
  overflow: hidden;
  display: flex; flex-direction: column;
  position: relative;
  transition: border-color .2s;
}
.post-card::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: transparent;
  transition: background .2s;
}
.post-card:hover { border-color: var(--c-border); }
.post-card:hover::before { background: var(--c-accent); }

.card-thumb-link { display: block; overflow: hidden; aspect-ratio: 16/9; }
.card-thumb { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.card-thumb-link:hover .card-thumb { transform: scale(1.05); }
.card-thumb-placeholder { width: 100%; aspect-ratio: 16/9; background: var(--c-bg-alt); }

.card-body { padding: 1.125rem 1.25rem 1.375rem 1.5rem; display: flex; flex-direction: column; flex: 1; gap: .5rem; }
.card-meta { display: flex; align-items: center; gap: .625rem; flex-wrap: wrap; }
.card-date { font-size: .8rem; color: var(--c-text-3); }
.card-title { font-size: 1.0625rem; line-height: 1.3; margin: 0; }
.card-title a { color: var(--c-primary); text-decoration: none; }
.card-title a:hover { color: var(--c-accent); }
.card-excerpt {
  font-size: .875rem; color: var(--c-text-2); line-height: 1.6; flex: 1; margin: 0;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}

/* ─────────────────────────────────────────────────────────── */
/* SINGLE POST — narrow, serif body for reading               */
/* ─────────────────────────────────────────────────────────── */
.single-wrap { max-width: var(--content); margin-inline: auto; padding-top: 1rem; }

.article-meta {
  display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; margin-bottom: 1rem;
}
.article-date { font-size: .875rem; color: var(--c-text-3); }

.article-title {
  font-family: var(--ff-serif);
  font-size: clamp(1.75rem, 5vw, 3rem);
  line-height: 1.2; margin-bottom: 1.5rem; color: var(--c-primary);
}

.article-hero { margin-bottom: 2.5rem; border-radius: var(--r-md); overflow: hidden; }
.article-hero img { width: 100%; }

/* TOC */
.toc {
  background: var(--c-accent-lt);
  border-left: 4px solid var(--c-accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  padding: 1.25rem 1.5rem; margin-bottom: 2.5rem;
}
.toc-title {
  font-family: var(--ff-serif); font-weight: var(--fw-bold);
  font-size: 1rem; color: var(--c-primary); margin-bottom: .75rem;
}
.toc ol { list-style: decimal; padding-left: 1.25rem; display: flex; flex-direction: column; gap: .35rem; }
.toc ol li { font-size: .9rem; }
.toc a { color: var(--c-accent); text-decoration: none; }
.toc a:hover { text-decoration: underline; }

/* Entry content — serif body text */
.entry-content {
  font-family: var(--ff-serif);
  font-size: 1.125rem;
  line-height: 1.9;
  color: var(--c-text);
}
.entry-content > * + * { margin-top: 1.5rem; }
.entry-content h2 {
  font-family: var(--ff-serif); font-size: clamp(1.3rem, 3vw, 1.75rem);
  margin-top: 3rem; padding-bottom: .5rem;
  border-bottom: 1px solid var(--c-border-lt); scroll-margin-top: 110px;
  font-weight: var(--fw-bold);
}
.entry-content h3 { font-family: var(--ff-serif); font-size: clamp(1.1rem, 2.5vw, 1.3rem); margin-top: 2.5rem; }
.entry-content h4 { font-family: var(--ff-serif); font-size: 1.0625rem; margin-top: 2rem; }
.entry-content a { color: var(--c-accent); text-decoration: underline; text-underline-offset: 3px; }
.entry-content a:hover { color: var(--c-accent-dk); }
.entry-content ul, .entry-content ol { padding-left: 1.5rem; display: flex; flex-direction: column; gap: .5rem; }
.entry-content ul { list-style: disc; }
.entry-content ol { list-style: decimal; }
.entry-content li { font-size: 1.125rem; line-height: 1.8; }
.entry-content blockquote {
  border-left: 4px solid var(--c-accent);
  padding: 1rem 1.375rem;
  background: var(--c-accent-lt);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-style: italic; color: var(--c-text-2);
}
.entry-content blockquote p { margin: 0; }
.entry-content img { border-radius: var(--r-md); margin-inline: auto; }
.entry-content figure { margin: 0; }
.entry-content figcaption { text-align: center; font-size: .8125rem; font-family: var(--ff-sans); color: var(--c-text-3); margin-top: .5rem; }
.entry-content table { width: 100%; border-collapse: collapse; font-family: var(--ff-sans); font-size: .9375rem; overflow-x: auto; display: block; }
.entry-content th, .entry-content td { border: 1px solid var(--c-border); padding: .6rem .875rem; text-align: left; }
.entry-content th { background: var(--c-bg-alt); font-weight: var(--fw-semi); }
.entry-content code {
  font-family: 'Cascadia Code', 'Fira Code', 'Courier New', monospace;
  font-size: .875em; background: var(--c-bg-alt); padding: 1px 5px; border-radius: 3px; color: var(--c-accent);
}
.entry-content pre {
  background: var(--c-primary); color: #f5edd5; padding: 1.25rem 1.5rem;
  border-radius: var(--r-md); overflow-x: auto; font-size: .875rem; line-height: 1.65; font-family: monospace;
}
.entry-content pre code { background: none; color: inherit; padding: 0; font-size: inherit; }
.entry-content hr { border: none; border-top: 2px solid var(--c-border-lt); margin-block: 3rem; }

/* Author bio */
.author-bio {
  display: flex; gap: 1.25rem; align-items: flex-start;
  border-top: 2px solid var(--c-border); padding-top: 2rem; margin-top: 3rem;
}
.author-avatar {
  width: 72px; height: 72px; border-radius: 50%; object-fit: cover;
  flex-shrink: 0; border: 2px solid var(--c-border);
}
.author-avatar-placeholder {
  width: 72px; height: 72px; border-radius: 50%; background: var(--c-bg-alt);
  flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: var(--c-text-3);
}
.author-label {
  font-family: var(--ff-sans); font-size: .6875rem; text-transform: uppercase;
  letter-spacing: .1em; color: var(--c-accent); margin-bottom: .25rem;
}
.author-name { font-family: var(--ff-serif); font-size: 1.125rem; font-weight: var(--fw-bold); color: var(--c-primary); margin-bottom: .5rem; }
.author-desc { font-family: var(--ff-sans); font-size: .9rem; color: var(--c-text-2); line-height: 1.65; margin: 0; }

/* Related posts */
.related-posts { margin-top: 3.5rem; }
.related-posts-title {
  font-size: 1.25rem; margin-bottom: 1.25rem;
  padding-bottom: .625rem; border-bottom: 2px solid var(--c-border-lt);
}
.related-grid { display: grid; gap: 1rem; }
@media (min-width: 540px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px)  { .related-grid { grid-template-columns: repeat(3, 1fr); } }
.related-card { display: flex; flex-direction: column; gap: .5rem; text-decoration: none; }
.related-thumb-wrap { border-radius: var(--r-md); overflow: hidden; aspect-ratio: 16/9; background: var(--c-bg-alt); }
.related-thumb { width: 100%; height: 100%; object-fit: cover; transition: transform .25s; }
.related-card:hover .related-thumb { transform: scale(1.05); }
.related-title { font-size: .9375rem; font-family: var(--ff-serif); font-weight: var(--fw-bold); color: var(--c-primary); line-height: 1.35; }
.related-card:hover .related-title { color: var(--c-accent); }
.related-date { font-size: .8rem; color: var(--c-text-3); font-family: var(--ff-sans); }

/* ── Static Page ──────────────────────────────────────────── */
.page-wrap { max-width: var(--content); margin-inline: auto; padding-top: 1rem; }
.page-title {
  font-size: clamp(1.75rem, 4.5vw, 2.75rem); margin-bottom: 2rem;
  padding-bottom: .75rem; border-bottom: 2px solid var(--c-border-lt);
}

/* ── 404 / Search ─────────────────────────────────────────── */
.empty-state { text-align: center; padding: 5rem 1rem; max-width: 520px; margin-inline: auto; }
.empty-state-icon { font-size: 4rem; margin-bottom: 1rem; }
.empty-state h1 { font-size: 2rem; margin-bottom: .75rem; }
.empty-state p { color: var(--c-text-2); margin-bottom: 1.75rem; font-family: var(--ff-sans); }

.search-form-wrap { display: flex; gap: .5rem; max-width: 420px; margin-inline: auto; }
.search-field {
  flex: 1; padding: .625rem 1rem;
  border: 1.5px solid var(--c-border); border-radius: var(--r-md);
  font: inherit; font-size: .9375rem; background: var(--c-bg-card); color: var(--c-text);
}
.search-field:focus { outline: none; border-color: var(--c-accent); }
.search-submit {
  padding: .625rem 1.25rem; background: var(--c-accent); color: #fff;
  border-radius: var(--r-md); font-size: .9375rem; font-weight: var(--fw-semi);
  transition: background .15s;
}
.search-submit:hover { background: var(--c-accent-dk); }
.search-results-meta { margin-bottom: 1.5rem; color: var(--c-text-2); font-size: .9375rem; }
.search-results-meta strong { color: var(--c-text); }

/* ── Pagination ───────────────────────────────────────────── */
.pagination {
  display: flex; justify-content: center; align-items: center;
  gap: .375rem; margin-top: 3rem; flex-wrap: wrap;
}
.pagination .page-numbers {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 38px; height: 38px; padding-inline: .75rem;
  border-radius: var(--r-sm); font-size: .9rem; font-weight: var(--fw-medium);
  text-decoration: none; color: var(--c-text-2);
  border: 1.5px solid var(--c-border); background: var(--c-bg-card);
  transition: border-color .15s, color .15s;
}
.pagination .page-numbers:hover { border-color: var(--c-accent); color: var(--c-accent); }
.pagination .page-numbers.current { background: var(--c-accent); border-color: var(--c-accent); color: #fff; }
.pagination .page-numbers.dots { border-color: transparent; background: none; }

/* ─────────────────────────────────────────────────────────── */
/* FOOTER — brand description left + nav links right          */
/* ─────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--c-primary); color: rgba(255,255,255,.75);
  padding-block: 3rem; margin-top: auto;
}
.footer-inner {
  display: grid; gap: 2rem;
}
@media (min-width: 640px) {
  .footer-inner { grid-template-columns: 1fr 1fr; align-items: start; }
}
.footer-brand-block {}
.footer-brand {
  font-family: var(--ff-serif); font-size: 1.25rem; font-weight: var(--fw-bold);
  color: #fff; text-decoration: none; display: inline-block; margin-bottom: .625rem;
}
.footer-brand .brand-accent { color: var(--c-accent); }
.footer-desc {
  font-size: .875rem; color: rgba(255,255,255,.55); line-height: 1.65; max-width: 320px;
}
.footer-nav-block {}
.footer-nav-label {
  font-size: .6875rem; text-transform: uppercase; letter-spacing: .1em;
  color: rgba(255,255,255,.4); margin-bottom: .75rem;
}
.footer-nav ul { list-style: none; display: flex; flex-direction: column; gap: .125rem; }
.footer-nav a {
  font-size: .9rem; color: rgba(255,255,255,.65); text-decoration: none;
  padding: .2rem 0; transition: color .15s;
}
.footer-nav a:hover { color: #fff; }
.footer-copy {
  margin-top: 2.5rem; padding-top: 1.25rem;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: .8125rem; color: rgba(255,255,255,.35);
  text-align: center;
}

/* ── Utilities ────────────────────────────────────────────── */
.screen-reader-text {
  border: 0; clip: rect(1px,1px,1px,1px); clip-path: inset(50%);
  height: 1px; margin: -1px; overflow: hidden;
  padding: 0; position: absolute; width: 1px; word-wrap: normal !important;
}
.wp-caption { max-width: 100%; }
.wp-caption-text { font-size: .8125rem; font-family: var(--ff-sans); color: var(--c-text-3); text-align: center; margin-top: .375rem; }
.aligncenter { display: block; margin-inline: auto; }
.alignleft  { float: left;  margin: .25rem 1.25rem 1rem 0; }
.alignright { float: right; margin: .25rem 0 1rem 1.25rem; }
.wp-block-image { margin-bottom: 1.5rem; }