/*
Theme Name: Houseplant Atlas
Theme URI: https://houseplantatlas.com
Author: Ali
Description: Minimal speed-optimized WordPress theme for Houseplant Atlas. System fonts, no jQuery, no page builder, WebP thumbnails, JSON-LD schema, hreflang.
Version: 0.1.1
License: GPL-2.0-or-later
Requires PHP: 8.0
Requires at least: 6.5
Text Domain: houseplant-atlas
Tags: minimal, multilingual, fast, schema, blog
*/

/* ────────────────────────────────────────────────────────────
   Design tokens — keep this section above the fold of style.css
   so a critical-CSS extractor can pick it up.
   ──────────────────────────────────────────────────────────── */
:root {
  --color-bg: #fafaf7;
  --color-fg: #1c2321;
  --color-muted: #6b7672;
  --color-accent: #2f6f4f;
  --color-accent-hover: #245940;
  --color-border: #e6e6e0;
  --color-card: #ffffff;

  --font-body: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-heading: Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --content-width: 720px;
  --wide-width: 1080px;
  --radius: 6px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 40px;
  --space-6: 64px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #14191b;
    --color-fg: #e7ebe8;
    --color-muted: #9aa39f;
    --color-accent: #6cc28e;
    --color-accent-hover: #88d4a4;
    --color-border: #2a3133;
    --color-card: #1c2326;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.65;
  font-feature-settings: "kern" 1;
  -webkit-font-smoothing: antialiased;
}
img, picture, video { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  margin: var(--space-5) 0 var(--space-3);
}
h1 { font-size: 2.4rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.35rem; }

/* ────────── Layout ────────── */
.lh-container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}
.lh-container--wide {
  max-width: var(--wide-width);
}
.lh-wide { max-width: var(--wide-width); }

.lh-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-card);
  padding: var(--space-3) 0;
}
.lh-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: nowrap;
}
.lh-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--color-fg);
  text-decoration: none;
}

/* ────────── Hamburger menu (CSS-only via checkbox) ────────── */
.lh-nav-toggle { display: none; }
.lh-nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: 4px;
  -webkit-tap-highlight-color: transparent;
}
.lh-nav-burger span {
  width: 24px;
  height: 2px;
  background: var(--color-fg);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.lh-nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex: 1;
  justify-content: center;
  flex-wrap: nowrap;
  min-width: 0;
}
.lh-nav-list {
  list-style: none;
  margin: 0 var(--space-4);
  padding: 0;
  display: flex;
  gap: var(--space-4);
  align-items: center;
  flex-wrap: nowrap;
  white-space: nowrap;
}
.lh-lang-form {
  margin-left: auto;
}
.lh-nav a {
  color: var(--color-fg);
  font-size: 0.95rem;
  text-decoration: none;
  padding: 8px 4px;
  display: inline-block;
}
.lh-nav a:hover { color: var(--color-accent); }

@media (max-width: 760px) {
  .lh-header-inner { flex-wrap: wrap; }
  .lh-nav-burger { display: flex; }
  .lh-nav {
    flex-basis: 100%;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.25s ease;
  }
  .lh-nav-toggle:checked ~ .lh-nav { max-height: 400px; }
  .lh-nav-toggle:checked ~ .lh-nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .lh-nav-toggle:checked ~ .lh-nav-burger span:nth-child(2) { opacity: 0; }
  .lh-nav-toggle:checked ~ .lh-nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .lh-nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-3) 0 var(--space-2);
    gap: 0;
    width: 100%;
  }
  .lh-nav-list li { width: 100%; border-top: 1px solid var(--color-border); }
  .lh-nav-list li:first-child { border-top: 0; }
  .lh-nav-list a { padding: 12px 0; display: block; width: 100%; }
  .lh-lang-form { margin-left: 0; margin-top: var(--space-2); width: 100%; }
  .lh-lang-select { width: 100%; }
}

.lh-main { padding: var(--space-5) 0; }

/* ────────── Footer ────────── */
.lh-footer-cta-wrap {
  margin-top: var(--space-6);
}
.lh-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-card);
  padding: var(--space-5) 0 var(--space-3);
  color: var(--color-fg);
  font-size: 0.92rem;
  margin-top: var(--space-5);
}
.lh-footer-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.lh-footer-col h3.lh-footer-heading {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin: 0 0 var(--space-2);
}
.lh-footer-blurb {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin: 0;
}
.lh-footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.lh-footer-list li {
  padding: 4px 0;
}
.lh-footer-list a {
  color: var(--color-fg);
  text-decoration: none;
}
.lh-footer-list a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}
.lh-footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
  color: var(--color-muted);
  font-size: 0.85rem;
  text-align: center;
}
.lh-footer-bottom p { margin: 0; }

/* ────────── Article ────────── */
.lh-article-meta {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-3);
}
.lh-featured-image {
  margin: var(--space-3) -1rem var(--space-4);
  border-radius: var(--radius);
  overflow: hidden;
}
.lh-content p { margin: var(--space-3) 0; }
.lh-content ul, .lh-content ol { margin: var(--space-3) 0; padding-left: 1.5em; }
.lh-content li { margin: var(--space-1) 0; }
.lh-content blockquote {
  border-left: 4px solid var(--color-accent);
  margin: var(--space-4) 0;
  padding: var(--space-2) var(--space-3);
  color: var(--color-muted);
  font-style: italic;
}
.lh-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-4) 0;
  font-size: 0.95rem;
}
.lh-content th, .lh-content td {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
.lh-content th {
  background: var(--color-card);
  font-weight: 600;
}
.lh-content code {
  background: var(--color-card);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* ────────── Archive / index ────────── */
.lh-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
  margin: var(--space-4) 0;
}
.lh-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease;
}
.lh-card:hover { transform: translateY(-2px); }
.lh-card-image { aspect-ratio: 16/9; background: var(--color-border); }
.lh-card-image img { width: 100%; height: 100%; object-fit: cover; }
.lh-card-body { padding: var(--space-3); flex: 1; display: flex; flex-direction: column; }
.lh-card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin: 0 0 var(--space-2);
  color: var(--color-fg);
}
.lh-card-excerpt {
  color: var(--color-muted);
  font-size: 0.95rem;
  flex: 1;
}

/* ────────── Author bio ────────── */
.lh-author-bio {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-card);
  border-radius: var(--radius);
  margin: var(--space-5) 0;
  border: 1px solid var(--color-border);
}
.lh-author-bio img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  flex-shrink: 0;
}
.lh-author-bio-text { font-size: 0.95rem; color: var(--color-muted); }
.lh-author-bio-text strong { color: var(--color-fg); display: block; }

/* ────────── Language switcher ────────── */
/* Language dropdown (replaces old .lh-langs inline links) */
.lh-lang-form {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}
.lh-lang-select {
  font: inherit;
  font-size: 0.9rem;
  padding: 8px 28px 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-card);
  color: var(--color-accent);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath fill='%232f6f4f' d='M2 4l4 4 4-4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 12px;
  transition: border-color 0.2s;
}
.lh-lang-select:hover { border-color: var(--color-accent); }
.lh-lang-select:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; }

/* Search form */
.lh-searchform {
  display: flex;
  gap: var(--space-2);
  margin: var(--space-4) 0;
}
.lh-searchform input[type="search"] {
  flex: 1;
  padding: 10px 12px;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-card);
  color: var(--color-fg);
  font-family: inherit;
  transition: border-color 0.2s;
}
.lh-searchform input[type="search"]:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(47, 111, 79, 0.1);
}
.lh-searchform button {
  padding: 10px 20px;
  font-size: 1rem;
  font-weight: 500;
  border: 1px solid var(--color-accent);
  border-radius: 4px;
  background: var(--color-accent);
  color: white;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}
.lh-searchform button:hover {
  background: var(--color-accent-hover);
}
.lh-searchform button:active {
  transform: scale(0.98);
}

/* ────────── Utility ────────── */
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ────────── Mobile responsiveness ────────── */
@media (max-width: 980px) {
  /* Stack the sidebar BELOW the main content rather than next to it */
  .lh-sidebar { margin-top: var(--space-5); }
  /* Cards: at least 2 columns on tablets, 1 on small phones */
  .lh-card-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
}

@media (max-width: 600px) {
  body { font-size: 17px; line-height: 1.6; }
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.4rem; }
  h3 { font-size: 1.15rem; }

  /* Edge-to-edge hero image on phones */
  .lh-featured-image {
    margin: var(--space-3) calc(-1 * var(--space-3)) var(--space-4);
    border-radius: 0;
  }

  /* Single column for cards on small phones */
  .lh-card-grid { grid-template-columns: 1fr; gap: var(--space-3); }

  /* Tap-friendly card titles */
  .lh-card-title { font-size: 1.05rem; }

  /* Marquee: smaller text, slower animation feels less frantic on narrow */
  .lh-marquee { font-size: 0.82rem; }
  .lh-marquee-track { animation-duration: 80s; }
  .lh-marquee-track > a { padding-right: 2em; }

  /* Tables get a horizontal scrollbar instead of squishing */
  .lh-content table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }

  /* Bigger tap targets in lists */
  .lh-sidebar-widget li { padding: 8px 0; }
  .lh-footer-list li { padding: 6px 0; }

  /* Header stays compact */
  .lh-header { padding: var(--space-2) 0; }
  .lh-brand { font-size: 1.2rem; }

  /* Breadcrumbs wrap nicely */
  .lh-breadcrumbs { font-size: 0.85rem; word-break: break-word; }

  /* Author bio stacks */
  .lh-author-bio { flex-direction: column; text-align: center; }
  .lh-author-bio img { margin: 0 auto; }
}

/* Ensure links and buttons are at least 44×44 on touch */
@media (pointer: coarse) {
  .lh-nav-list a,
  .lh-footer-list a,
  .lh-sidebar-widget a,
  .lh-card-title a { min-height: 44px; display: inline-block; }
  button, .lh-footer-cta button { min-height: 44px; }
}

/* ────────── Marquee (latest articles ticker) ────────── */
.lh-marquee {
  background: var(--color-accent);
  color: #fff;
  padding: 6px 0;
  overflow: hidden;
  font-size: 0.9rem;
}
.lh-marquee-track {
  display: inline-flex;
  white-space: nowrap;
  animation: lh-marquee 60s linear infinite;
}
.lh-marquee-track > a {
  color: #fff;
  padding-right: 3em;
  text-decoration: none;
}
.lh-marquee-track > a:hover { text-decoration: underline; }
@keyframes lh-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .lh-marquee-track { animation: none; }
}

/* ────────── Two-column layout with sidebar ────────── */
.lh-with-sidebar {
  display: grid;
  gap: var(--space-5);
}
@media (min-width: 980px) {
  .lh-container--wide { max-width: 1120px; }
  .lh-with-sidebar { grid-template-columns: 1fr 300px; }
}

.lh-sidebar {
  font-size: 0.95rem;
}
.lh-sidebar-widget {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  margin-bottom: var(--space-3);
}
.lh-sidebar-widget h3,
.lh-sidebar-widget .widget-title {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  margin: 0 0 var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}
.lh-sidebar-widget ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.lh-sidebar-widget li {
  padding: 6px 0;
  border-bottom: 1px dotted var(--color-border);
}
.lh-sidebar-widget li:last-child { border-bottom: none; }
.lh-sidebar-widget a {
  color: var(--color-fg);
  text-decoration: none;
}
.lh-sidebar-widget a:hover { color: var(--color-accent); }

/* ────────── Footer subscription CTA ────────── */
.lh-footer-cta {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
  color: #fff;
  padding: var(--space-5) var(--space-4);
  text-align: center;
  border-radius: var(--radius);
  margin: var(--space-5) 0 0;
}
.lh-footer-cta h2 {
  color: #fff;
  margin: 0 0 var(--space-2);
  font-size: 1.6rem;
}
.lh-footer-cta p {
  margin: 0 auto var(--space-3);
  max-width: 480px;
  opacity: 0.92;
}
.lh-footer-cta form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
}
.lh-footer-cta input[type="email"] {
  padding: 12px 14px;
  font-size: 1rem;
  border: 0;
  border-radius: 4px;
  width: 100%;
  max-width: 320px;
  font-family: inherit;
  box-sizing: border-box;
}
.lh-footer-cta button {
  padding: 12px 22px;
  background: #fff;
  color: var(--color-accent);
  border: 0;
  border-radius: 4px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  font-family: inherit;
  min-height: 44px;
}
.lh-footer-cta button:hover { background: #f5f5f0; }

@media (max-width: 600px) {
  .lh-footer-cta { padding: var(--space-4) var(--space-3); }
  .lh-footer-cta h2 { font-size: 1.35rem; }
  .lh-footer-cta form { flex-direction: column; align-items: stretch; }
  .lh-footer-cta input[type="email"] { max-width: 100%; }
  .lh-footer-cta button { width: 100%; }
}