/* =============================================================
   HeyFam Theme — main.css
   Warm, readable, and accessible for a family history blog.
   ============================================================= */

/* ---- Custom Properties ------------------------------------ */
:root {
  --color-bg:          #FAF8F5;
  --color-surface:     #F3EFE9;
  --color-text:        #2C2820;
  --color-muted:       #7A6E62;
  --color-border:      #DDD6CC;
  --color-accent:      #7B5E40;
  --color-accent-dark: #5A4430;
  --color-link:        #5C4A30;
  --color-link-hover:  #8B6940;

  --font-heading: 'Libre Baskerville', Georgia, 'Times New Roman', serif;
  --font-body:    'Lora', Georgia, 'Times New Roman', serif;
  --font-ui:      'Source Sans 3', 'Source Sans Pro', system-ui, sans-serif;

  --max-width:      700px;
  --max-width-wide: 940px;
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2.5rem;
  --space-2xl: 4rem;

  --radius: 3px;
  --transition: 150ms ease;
}

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

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---- Typography ------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

h1 { font-size: 2rem; margin-top: 0; }
h2 { font-size: 1.45rem; }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.05rem; }

p {
  margin-bottom: var(--space-lg);
}

a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

a:hover,
a:focus {
  color: var(--color-link-hover);
}

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

strong, b {
  font-weight: 700;
}

em, i {
  font-style: italic;
}

small {
  font-size: 0.85em;
  color: var(--color-muted);
  font-family: var(--font-ui);
}

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

/* ---- Lists ------------------------------------------------ */
ul, ol {
  margin-bottom: var(--space-lg);
  padding-left: 1.5rem;
}

li {
  margin-bottom: var(--space-sm);
}

li > ul,
li > ol {
  margin-top: var(--space-sm);
  margin-bottom: 0;
}

/* ---- Blockquote ------------------------------------------ */
blockquote {
  border-left: 3px solid var(--color-accent);
  margin: var(--space-xl) 0;
  padding: var(--space-sm) 0 var(--space-sm) var(--space-lg);
  color: var(--color-muted);
  font-style: italic;
}

blockquote p:last-child {
  margin-bottom: 0;
}

/* ---- Code ------------------------------------------------- */
code {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.875em;
  background: var(--color-surface);
  padding: 0.1em 0.35em;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

pre {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  overflow-x: auto;
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875rem;
}

/* ---- Images ----------------------------------------------- */
img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

.post-body img {
  margin-inline: auto;
}

figure {
  margin: var(--space-xl) 0;
}

figcaption {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--color-muted);
  text-align: center;
  margin-top: var(--space-sm);
}

/* ---- Tables ----------------------------------------------- */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-lg);
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

th {
  font-family: var(--font-ui);
  font-weight: 600;
  color: var(--color-muted);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--color-border);
}

tr:last-child td {
  border-bottom: none;
}

/* ---- Layout Container ------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width-wide);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.container--narrow {
  max-width: var(--max-width);
}

/* ---- Site Header ------------------------------------------ */
.site-header {
  padding: var(--space-xl) 0 var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-2xl);
}

.site-header__inner {
  display: flex;
  align-items: baseline;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo__img {
  display: block;
  height: 44px;
  width: auto;
  transition: opacity var(--transition);
}

.site-logo:hover .site-logo__img,
.site-logo:focus .site-logo__img {
  opacity: 0.85;
}

.site-logo__word {
  color: var(--color-accent);
}

.site-nav {
  flex: 1;
}

.site-nav__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.site-nav__list a {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--color-muted);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color var(--transition);
}

.site-nav__list a:hover,
.site-nav__list a:focus {
  color: var(--color-link);
}

.site-nav__list a[aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}

/* ---- Site Footer ------------------------------------------ */
.site-footer {
  margin-top: var(--space-2xl);
  padding: var(--space-xl) 0 var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.site-footer__copy {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--color-muted);
}

.site-footer__copy a {
  color: var(--color-muted);
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.site-footer__copy a:hover {
  color: var(--color-link);
}

/* ---- Homepage -------------------------------------------- */
.home-intro {
  margin-bottom: var(--space-2xl);
}

.home-intro__heading {
  font-size: 2.25rem;
  margin-bottom: var(--space-md);
}

.home-intro__lead {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 560px;
  margin-bottom: 0;
}

.home-section-heading {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-lg);
}

/* ---- Post List -------------------------------------------- */
.post-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-2xl);
}

.post-list__item {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-xl) 0;
}

.post-list__item:first-child {
  padding-top: 0;
}

.post-list__item:last-child {
  border-bottom: none;
}

.post-list__date {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--color-muted);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-xs);
  display: block;
}

.post-list__title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 0 var(--space-sm);
  line-height: 1.3;
}

.post-list__title a {
  color: var(--color-text);
  text-decoration: none;
}

.post-list__title a:hover,
.post-list__title a:focus {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.post-list__summary {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
  line-height: 1.65;
}

/* ---- Single Post ----------------------------------------- */
.post {
  margin-bottom: var(--space-2xl);
}

.post-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.post-header__title {
  font-size: 2.1rem;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.post-header__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.post-meta__date,
.post-meta__reading-time {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--color-muted);
}

.post-meta__sep {
  color: var(--color-border);
  font-size: 0.85rem;
}

.post-body {
  font-size: 1.05rem;
  line-height: 1.8;
}

.post-body > * + * {
  margin-top: 0;
}

.post-body h2 {
  font-size: 1.5rem;
  margin-top: var(--space-2xl);
}

.post-body h3 {
  font-size: 1.2rem;
  margin-top: var(--space-xl);
}

/* ---- Page header (for list pages) ----------------------- */
.page-header {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.page-header__title {
  font-size: 1.9rem;
  margin-bottom: var(--space-sm);
}

.page-header__description {
  color: var(--color-muted);
  font-size: 1rem;
  margin-bottom: 0;
}

/* ---- 404 / Not Found ------------------------------------- */
.not-found {
  text-align: center;
  padding: var(--space-2xl) 0;
}

.not-found__code {
  font-family: var(--font-heading);
  font-size: 5rem;
  line-height: 1;
  color: var(--color-border);
  margin-bottom: var(--space-md);
}

.not-found__title {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

.not-found__message {
  color: var(--color-muted);
  margin-bottom: var(--space-xl);
}

/* ---- Pagination ----------------------------------------- */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  font-family: var(--font-ui);
  font-size: 0.9rem;
}

.pagination__link {
  color: var(--color-link);
  text-decoration: none;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition), color var(--transition);
}

.pagination__link:hover,
.pagination__link:focus {
  border-color: var(--color-accent);
  color: var(--color-link-hover);
  text-decoration: none;
}

.pagination__info {
  color: var(--color-muted);
  font-size: 0.85rem;
}

/* ---- Tags / Taxonomy ------------------------------------- */
.tag-list {
  list-style: none;
  padding: 0;
  margin: var(--space-xl) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tag-list__item a {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--color-muted);
  text-decoration: none;
  padding: 2px var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  transition: border-color var(--transition), color var(--transition);
}

.tag-list__item a:hover,
.tag-list__item a:focus {
  border-color: var(--color-accent);
  color: var(--color-link);
}

/* ---- Skip-to-content link (accessibility) ---------------- */
.skip-link {
  position: absolute;
  top: -3rem;
  left: var(--space-md);
  z-index: 999;
  background: var(--color-text);
  color: var(--color-bg);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  text-decoration: none;
  border-radius: 0 0 var(--radius) var(--radius);
  transition: top var(--transition);
}

.skip-link:focus {
  top: 0;
}

/* ---- Utility --------------------------------------------- */
.visually-hidden {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

/* ---- Responsive ------------------------------------------ */
@media (max-width: 640px) {
  html {
    font-size: 17px;
  }

  h1 { font-size: 1.65rem; }
  h2 { font-size: 1.3rem; }

  .home-intro__heading { font-size: 1.8rem; }
  .post-header__title { font-size: 1.65rem; }

  .site-header {
    padding: var(--space-lg) 0;
    margin-bottom: var(--space-xl);
  }

  .site-header__inner {
    gap: var(--space-md);
  }

  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .not-found__code {
    font-size: 3.5rem;
  }
}