/*
Theme Name: XFRadio Theme
Theme URI: https://example.com/xfradio-theme
Author: OpenAI
Author URI: https://openai.com
Description: A dark ham radio and electronics WordPress theme built for projects, field notes, technical blog posts, and workshop updates.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 7.4
Text Domain: xfradio-theme
Tags: dark, blog, custom-logo, custom-menu, featured-images, one-column, two-columns, right-sidebar, theme-options
*/

:root {
  --xfradio-bg: #050806;
  --xfradio-surface: rgba(10, 16, 12, 0.84);
  --xfradio-surface-strong: rgba(8, 12, 10, 0.94);
  --xfradio-surface-soft: rgba(18, 28, 22, 0.86);
  --xfradio-text: #f3fff5;
  --xfradio-text-soft: #c6d6c9;
  --xfradio-muted: #93a697;
  --xfradio-accent: #38d66b;
  --xfradio-accent-strong: #16a34a;
  --xfradio-border: rgba(255, 255, 255, 0.08);
  --xfradio-shadow: 0 20px 50px rgba(0, 0, 0, 0.34);
  --xfradio-radius: 22px;
  --xfradio-container: 1180px;
  --xfradio-overlay-opacity: 62;
  --xfradio-bg-image: url('assets/images/ham-radio-bg.png');
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  background-color: var(--xfradio-bg);
  color: var(--xfradio-text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.65;
  min-height: 100vh;
  position: relative;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(0,0,0, calc(var(--xfradio-overlay-opacity) / 100)), rgba(0,0,0, calc(var(--xfradio-overlay-opacity) / 100))),
    radial-gradient(circle at top center, rgba(56,214,107,0.16), transparent 36%),
    var(--xfradio-bg-image) center center / cover no-repeat fixed;
  z-index: -2;
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at center, transparent 40%, rgba(0, 0, 0, 0.88) 100%);
  pointer-events: none;
  z-index: -1;
}

a { color: var(--xfradio-accent); text-decoration: none; }
a:hover, a:focus { color: #7dffab; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font: inherit; }
.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 !important; width: 1px; word-wrap: normal !important;
}

.xfradio-site {
  min-height: 100vh;
}
.xfradio-container {
  width: min(var(--xfradio-container), calc(100% - 32px));
  margin: 0 auto;
}
.xfradio-section {
  padding: 22px 0;
}
.xfradio-section:first-of-type {
  padding-top: 42px;
}
.xfradio-card {
  background: var(--xfradio-surface);
  border: 1px solid var(--xfradio-border);
  border-radius: var(--xfradio-radius);
  box-shadow: var(--xfradio-shadow);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.xfradio-card--padded {
  padding: 30px;
}
.xfradio-section-heading {
  margin: 0 0 8px;
  font-size: clamp(1.4rem, 3vw, 2rem);
}
.xfradio-section-intro {
  margin: 0 0 20px;
  color: var(--xfradio-text-soft);
}

.xfradio-site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.56);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--xfradio-border);
}
.xfradio-site-header::after {
  content: '';
  display: block;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(56,214,107,0.62), transparent);
}
.xfradio-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
}
.xfradio-branding {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.xfradio-custom-logo img {
  max-height: 44px;
  width: auto;
}
.xfradio-site-title {
  margin: 0;
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.xfradio-site-title a { color: #fff; }
.xfradio-site-description {
  margin: 2px 0 0;
  color: var(--xfradio-muted);
  font-size: 0.92rem;
}
.xfradio-nav-toggle {
  display: none;
  border: 1px solid var(--xfradio-border);
  background: rgba(255,255,255,0.03);
  color: #fff;
  border-radius: 12px;
  padding: 10px 14px;
}
.xfradio-menu-wrap {
  display: flex;
  align-items: center;
  gap: 18px;
}
.xfradio-menu,
.xfradio-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.xfradio-menu {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.xfradio-menu > li {
  position: relative;
}
.xfradio-menu li {
  list-style: none;
}
.xfradio-menu a {
  color: #fff;
  opacity: 0.92;
  display: inline-flex;
  align-items: center;
  padding: 8px 0;
}
.xfradio-menu a:hover,
.xfradio-menu a:focus {
  color: var(--xfradio-accent);
  text-shadow: 0 0 8px rgba(56,214,107,0.45);
}
.xfradio-menu .menu-item-has-children > a,
.xfradio-menu .page_item_has_children > a {
  padding-right: 18px;
}
.xfradio-menu .menu-item-has-children > a::after,
.xfradio-menu .page_item_has_children > a::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-65%) rotate(45deg);
  opacity: 0.75;
}

.xfradio-site-header,
.xfradio-container,
.xfradio-nav,
.xfradio-menu-wrap,
.xfradio-menu,
.xfradio-menu > li {
  overflow: visible;
}
.xfradio-menu {
  align-items: center;
}
.xfradio-menu > li.menu-item-has-children,
.xfradio-menu > li.page_item_has_children {
  position: relative;
}
.xfradio-menu > li > ul,
.xfradio-menu .sub-menu,
.xfradio-menu .children {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 230px;
  padding: 10px;
  margin: 0;
  display: grid;
  gap: 2px;
  background: rgba(8, 12, 10, 0.97);
  border: 1px solid var(--xfradio-border);
  border-radius: 16px;
  box-shadow: var(--xfradio-shadow);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
  z-index: 1001;
}
.xfradio-menu > li > ul > li,
.xfradio-menu .sub-menu > li,
.xfradio-menu .children > li {
  display: block;
  width: 100%;
}
.xfradio-menu .sub-menu a,
.xfradio-menu .children a {
  display: block;
  white-space: nowrap;
}
.xfradio-menu li:hover > ul,
.xfradio-menu li:focus-within > ul,
.xfradio-menu li.xfradio-submenu-open > ul {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}
.xfradio-menu .sub-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 230px;
  padding: 10px;
  display: grid;
  gap: 2px;
  background: rgba(8, 12, 10, 0.97);
  border: 1px solid var(--xfradio-border);
  border-radius: 16px;
  box-shadow: var(--xfradio-shadow);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
  z-index: 1001;
}
.xfradio-menu > li > ul::before,
  .xfradio-menu .sub-menu::before,
  .xfradio-menu .children::before {
  content: '';
  position: absolute;
  top: -7px;
  left: 18px;
  width: 12px;
  height: 12px;
  background: rgba(8, 12, 10, 0.97);
  border-left: 1px solid var(--xfradio-border);
  border-top: 1px solid var(--xfradio-border);
  transform: rotate(45deg);
}
.xfradio-menu .sub-menu a {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  text-shadow: none;
}
.xfradio-menu .sub-menu a:hover,
.xfradio-menu .sub-menu a:focus {
  background: rgba(255,255,255,0.05);
}
.xfradio-menu li:hover > .sub-menu,
.xfradio-menu li:focus-within > .sub-menu,
.xfradio-menu li.xfradio-submenu-open > ul,
  .xfradio-menu li.xfradio-submenu-open > .sub-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}
.xfradio-submenu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-left: 6px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  color: #fff;
  cursor: pointer;
}
.xfradio-submenu-toggle::before {
  content: '';
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform .18s ease;
}
.xfradio-submenu-open > .xfradio-submenu-toggle::before {
  transform: rotate(-135deg);
}

.xfradio-content-shell {
  padding-bottom: 34px;
}

.xfradio-hero {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 24px;
  align-items: stretch;
}
.xfradio-hero__content,
.xfradio-hero__aside {
  width: 100%;
  min-width: 0;
}
.xfradio-hero__content {
  padding: 34px;
}
.xfradio-hero__eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--xfradio-accent);
  text-transform: uppercase;
  font-size: 0.84rem;
  letter-spacing: 0.14em;
}
.xfradio-hero__title,
.xfradio-hero__text {
  width: 100%;
  max-width: none;
}
.xfradio-hero__title {
  margin: 0 0 14px;
  font-size: clamp(2.25rem, 5vw, 4.4rem);
  line-height: 1.02;
}
.xfradio-hero__text {
  margin: 0;
  color: var(--xfradio-text-soft);
  font-size: 1.06rem;
}
.xfradio-button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}
.xfradio-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 12px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
}
.xfradio-button:hover { transform: translateY(-1px); text-decoration: none; }
.xfradio-button--primary { background: var(--xfradio-accent); color: #04210d; }
.xfradio-button--primary:hover { background: #7dffab; color: #02150a; }
.xfradio-button--ghost {
  background: rgba(255,255,255,0.03);
  border-color: var(--xfradio-border);
  color: #fff;
}
.xfradio-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 14px;
  margin-top: 26px;
}
.xfradio-stat {
  padding: 14px;
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
}
.xfradio-stat__value {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
}
.xfradio-stat__label {
  display: block;
  color: var(--xfradio-muted);
  font-size: 0.86rem;
}
.xfradio-hero__aside {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--xfradio-surface-strong);
}
.xfradio-mini-panel {
  padding: 18px;
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
}
.xfradio-mini-panel h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}
.xfradio-mini-panel p,
.xfradio-mini-panel ul {
  margin: 0;
  color: var(--xfradio-text-soft);
}
.xfradio-mini-panel ul {
  padding-left: 18px;
}

.xfradio-about {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
}
.xfradio-about__copy,
.xfradio-about__list {
  min-width: 0;
}
.xfradio-feature-list,
.xfradio-activity-list,
.xfradio-archive-list,
.xfradio-contributor-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.xfradio-feature-list li,
.xfradio-activity-list li,
.xfradio-archive-list li,
.xfradio-contributor-list li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.xfradio-feature-list li:last-child,
.xfradio-activity-list li:last-child,
.xfradio-archive-list li:last-child,
.xfradio-contributor-list li:last-child {
  border-bottom: 0;
}
.xfradio-feature-list strong,
.xfradio-contributor-list strong {
  display: block;
  margin-bottom: 3px;
}

.xfradio-activity-grid,
.xfradio-project-grid,
.xfradio-blog-grid,
.xfradio-footer-grid {
  display: grid;
  gap: 24px;
}
.xfradio-activity-grid,
.xfradio-footer-grid {
  grid-template-columns: repeat(2, minmax(0,1fr));
}
.xfradio-project-grid,
.xfradio-blog-grid {
  grid-template-columns: repeat(3, minmax(0,1fr));
}
.xfradio-card__title {
  margin: 0 0 8px;
  font-size: 1.2rem;
}
.xfradio-card__text,
.xfradio-post-card__excerpt,
.xfradio-meta,
.xfradio-empty {
  color: var(--xfradio-text-soft);
}
.xfradio-label {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--xfradio-accent);
}
.xfradio-post-card,
.xfradio-project-card,
.xfradio-panel {
  height: 100%;
}
.xfradio-post-card .wp-post-image,
.xfradio-project-card .wp-post-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 16px;
  margin-bottom: 16px;
}
.xfradio-post-card__title,
.xfradio-project-card__title {
  margin: 0 0 10px;
  font-size: 1.15rem;
}
.xfradio-post-card__title a,
.xfradio-project-card__title a {
  color: #fff;
}
.xfradio-post-card__title a:hover,
.xfradio-project-card__title a:focus,
.xfradio-project-card__title a:hover,
.xfradio-project-card__title a:focus {
  color: var(--xfradio-accent);
}
.xfradio-meta {
  font-size: 0.9rem;
  margin-bottom: 12px;
}
.xfradio-post-card__excerpt,
.xfradio-project-card__excerpt {
  margin-bottom: 16px;
}

.xfradio-main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
}
.xfradio-article,
.xfradio-sidebar {
  min-width: 0;
}
.xfradio-sidebar .widget {
  margin-bottom: 20px;
}
.xfradio-sidebar ul {
  margin: 0;
  padding-left: 18px;
}
.xfradio-sidebar li + li {
  margin-top: 8px;
}
.xfradio-article__header,
.xfradio-archive-header {
  margin-bottom: 20px;
}
.xfradio-article__title,
.xfradio-archive-title,
.xfradio-entry-title {
  margin: 0 0 8px;
}
.xfradio-entry-title a { color: #fff; }
.xfradio-entry-title a:hover { color: var(--xfradio-accent); }
.xfradio-entry + .xfradio-entry {
  margin-top: 24px;
}
.xfradio-entry__thumb {
  margin-bottom: 16px;
}
.xfradio-entry__thumb img {
  border-radius: 18px;
  width: 100%;
}
.xfradio-pagination {
  margin-top: 20px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.xfradio-pagination .page-numbers {
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.06);
  color: #fff;
}
.xfradio-pagination .current {
  background: var(--xfradio-accent);
  color: #06210d;
}

.xfradio-site-footer {
  padding: 8px 0 34px;
}
.xfradio-footer-note {
  margin-top: 18px;
  color: var(--xfradio-muted);
  font-size: 0.92rem;
}

.alignwide,
.alignfull { width: 100%; }

@media (max-width: 980px) {
  .xfradio-hero,
  .xfradio-about,
  .xfradio-main-grid,
  .xfradio-project-grid,
  .xfradio-blog-grid,
  .xfradio-activity-grid,
  .xfradio-footer-grid {
    grid-template-columns: 1fr;
  }
  .xfradio-nav-toggle {
    display: inline-flex;
  }
  .xfradio-menu-wrap {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }
  .xfradio-menu-wrap.is-open {
    display: flex;
  }
  .xfradio-nav {
    flex-wrap: wrap;
  }
  .xfradio-menu {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }
  .xfradio-menu > li {
    width: 100%;
  }
  .xfradio-menu .menu-item-has-children,
  .xfradio-menu .page_item_has_children {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
  }
  .xfradio-menu .menu-item-has-children > a,
  .xfradio-menu .page_item_has_children > a {
    padding-right: 0;
  }
  .xfradio-menu .menu-item-has-children > a::after,
  .xfradio-menu .page_item_has_children > a::after {
    display: none;
  }
  .xfradio-submenu-toggle {
    display: inline-flex;
  }
  .xfradio-menu > li > ul,
  .xfradio-menu .sub-menu,
  .xfradio-menu .children {
    position: static;
    min-width: 0;
    width: 100%;
    margin-top: 8px;
    padding: 8px;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    display: none;
    grid-column: 1 / -1;
    box-shadow: none;
  }
  .xfradio-menu > li > ul::before,
  .xfradio-menu .sub-menu::before,
  .xfradio-menu .children::before {
    display: none;
  }
  .xfradio-menu li.xfradio-submenu-open > ul,
  .xfradio-menu li.xfradio-submenu-open > .sub-menu {
    display: grid;
  }
  .xfradio-menu li:hover > ul,
  .xfradio-menu li:focus-within > ul,
  .xfradio-menu li:hover > .sub-menu,
  .xfradio-menu li:focus-within > .sub-menu {
    display: grid;
  }
}

@media (max-width: 700px) {
  .xfradio-card--padded,
  .xfradio-hero__content,
  .xfradio-hero__aside {
    padding: 22px;
  }
  .xfradio-container {
    width: min(var(--xfradio-container), calc(100% - 22px));
  }
  .xfradio-button-row {
    flex-direction: column;
    align-items: stretch;
  }
  .xfradio-hero__stats {
    grid-template-columns: 1fr;
  }
}