/*
Theme Name: Carbon Pro
Theme URI: https://github.com/tryadvocacy/carbon-pro
Author: Franz Stephan
Author URI: https://tryadvocacy.github.io
Description: A high-performance, resource-efficient WordPress theme inspired by the IBM Carbon Design System.
Version: 1.1.4
Tested up to: 6.5
Requires at least: 6.0
Requires PHP: 7.0
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: carbon-pro
Tags: one-column, custom-colors, custom-menu, featured-images, full-width-template, threaded-comments, translation-ready

Copyright 2026 Franz Stephan
Carbon Pro is distributed under the terms of the GNU GPL v2 or later.
*/

:root {
  --carbon-white: #ffffff;
  --carbon-g10: #f4f4f4;
  --carbon-g90: #393939;
  --carbon-g100: #161616;
  --carbon-blue-60: #0f62fe;
  --carbon-blue-70: #0043ce;
  --font-plex: 'IBM Plex Sans', sans-serif;
}

body {
  font-family: var(--font-plex);
  background-color: var(--carbon-white);
  color: var(--carbon-g100);
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

/* --- WordPress Core Classes --- */
.alignleft {
  float: left;
  margin: 0.5rem 1.5rem 0.5rem 0;
}
.alignright {
  float: right;
  margin: 0.5rem 0 0.5rem 1.5rem;
}
.aligncenter {
  display: block;
  margin-left: auto;
  margin-right: auto;
}
.wp-caption {
  margin-bottom: 1.5rem;
  max-width: 100%;
}
.wp-caption-text {
  font-size: 0.875rem;
  color: #666;
  margin-top: 0.5rem;
  text-align: center;
}
.gallery-caption {
  font-size: 0.875rem;
  color: #666;
}
.sticky {
  border: 1px solid var(--carbon-blue-60);
  padding: 1rem;
  background-color: #f8faff;
}
.bypostauthor {
  border-left: 3px solid var(--carbon-blue-60);
}

.header-image img {
  display: block;
  max-width: 100%;
  height: auto;
}
/* ------------------------------ */

.carbon-header {
  min-height: 3rem;
  height: auto;
  background-color: var(--carbon-g100);
  color: white;
  display: flex;
  flex-wrap: wrap; /* Allow header itself to wrap if logo + nav too wide */
  align-items: stretch;
  padding: 0 0 0 1rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid #393939;
}

.carbon-logo {
  display: flex;
  align-items: center;
  padding-right: 1rem;
  max-width: 250px; /* Limit logo/title width */
  overflow: hidden;
  white-space: nowrap;
  flex-shrink: 0;
}

.carbon-logo a {
  display: flex;
  align-items: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  width: 100%;
}

.carbon-header a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.1px;
}

.carbon-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  padding: 0 1rem;
  height: 100%;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.carbon-menu-toggle:hover {
  background-color: #353535;
}

.carbon-nav {
  margin-left: 1rem;
  flex-grow: 1;
  display: flex;
  height: 100%;
}

.carbon-header-search {
  display: flex;
  align-items: center;
  padding: 0 1rem;
  height: 100%;
  border-left: 1px solid #393939;
  max-width: 200px;
  flex-shrink: 0;
}

.carbon-header-search form {
  display: flex;
  align-items: center;
  width: 100%;
}

.carbon-header-search input[type="search"] {
  background-color: transparent;
  border: none;
  color: white;
  font-size: 0.875rem;
  width: 100%;
  outline: none;
}

.carbon-header-search input[type="submit"] {
  display: none;
}

/* Base Nav Container */
.carbon-nav {
  margin-left: 1rem;
  flex-grow: 1;
  display: flex;
  height: 100%;
}

/* Target only top-level ul and main menu container */
.carbon-nav > ul,
.carbon-nav > .menu {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  display: flex !important;
  flex-direction: row !important;
  height: 100% !important;
  align-items: stretch !important;
  flex-wrap: nowrap !important;
}

.carbon-nav ul li {
  position: relative;
  list-style-type: none !important;
}

/* Base Submenu Styling */
.carbon-nav ul ul {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--carbon-g90);
  min-width: 220px;
  flex-direction: column !important;
  height: auto !important;
  z-index: 1001;
  box-shadow: 0 12px 24px rgba(0,0,0,0.5);
  border: 1px solid #525252;
  padding: 0 !important;
  margin: 0 !important;
  
  /* Transition properties for "roll down" effect */
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: max-height 0.2s cubic-bezier(0, 0, 0.38, 0.9), opacity 0.15s ease, visibility 0.15s;
  display: flex !important; /* Keep it flex but hidden via height/opacity */
}

/* Nested submenus fly out to the right */
.carbon-nav ul ul ul {
  top: 0;
  left: 100%;
}

/* Visibility triggers */
.carbon-nav ul li:hover > ul,
.carbon-nav ul li:focus-within > ul,
.carbon-nav ul li.is-open > ul {
  max-height: 1000px; /* Large enough to contain any menu */
  opacity: 1;
  visibility: visible;
}

/* Chevron Indicators */
.carbon-nav ul li.menu-item-has-children > a:after,
.carbon-nav ul li.page_item_has_children > a:after {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-left: 0.5rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32' fill='white'%3E%3Cpath d='M16 22L6 12 7.4 10.6 16 19.2 24.6 10.6 26 12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  transition: transform 0.2s ease;
}

/* Top-level Chevron rotation when open */
.carbon-nav > ul > li.is-open > a:after {
  transform: rotate(180deg);
}

/* Sub-level Chevron (pointing right by default) */
.carbon-nav ul ul li.menu-item-has-children > a:after,
.carbon-nav ul ul li.page_item_has_children > a:after {
  transform: rotate(-90deg);
}

/* Sub-level Chevron rotation when open (points down) */
.carbon-nav ul ul li.is-open > a:after {
  transform: rotate(0deg);
}

.carbon-nav ul ul li {
  width: 100%;
  height: auto !important;
}

.carbon-nav ul ul li a {
  padding: 0 1rem !important;
  border: none !important;
  width: 100%;
  box-sizing: border-box;
  justify-content: space-between; /* Put chevron at the end */
  height: 40px !important; /* Carbon height */
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  color: #f4f4f4 !important;
}

.carbon-nav ul ul li a:hover {
  background-color: #4d4d4d !important;
}

.carbon-nav ul li,
.carbon-nav .menu li {
  height: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
  list-style-type: none !important;
}

.carbon-nav ul li a,
.carbon-nav .menu li a {
  font-size: 0.875rem;
  font-weight: 400;
  color: #c6c6c6;
  text-decoration: none;
  transition: all 0.1s;
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 1rem;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  white-space: nowrap;
}

.carbon-nav ul li a:hover,
.carbon-nav .menu li a:hover {
  color: white;
  background-color: #353535;
}

.carbon-nav ul li.current-menu-item a,
.carbon-nav .menu li.current-menu-item a {
  color: white;
  background-color: #353535;
  border-bottom-color: var(--carbon-blue-60);
}

@media (max-width: 1024px) {
  .carbon-header {
    padding-right: 0;
  }

  .carbon-menu-toggle {
    display: flex;
    order: 2;
  }

  .carbon-logo {
    flex-grow: 1;
  }

  .carbon-nav {
    position: fixed;
    top: 3rem;
    left: 0;
    width: 100%;
    height: calc(100vh - 3rem);
    background-color: var(--carbon-g100);
    flex-direction: column;
    display: none;
    border-top: 1px solid #393939;
    z-index: 999;
    margin-left: 0;
  }

  .carbon-nav.is-open {
    display: flex;
  }

  .carbon-nav ul,
  .carbon-nav .menu {
    flex-direction: column !important;
    height: auto !important;
    flex-wrap: nowrap !important;
  }

  .carbon-nav ul li,
  .carbon-nav .menu li {
    width: 100%;
    height: auto !important;
  }

  .carbon-nav ul li a,
  .carbon-nav .menu li a {
    padding: 1rem 2rem;
    height: auto;
    border-top: none;
    border-bottom: 1px solid #393939;
    border-left: 4px solid transparent;
  }

  .carbon-nav ul li.current-menu-item a,
  .carbon-nav .menu li.current-menu-item a {
    border-bottom-color: #393939;
    border-left-color: var(--carbon-blue-60);
  }

  .carbon-header-search {
    display: none;
  }

  /* Mobile Submenu Styling */
  .carbon-nav ul ul {
    position: static !important;
    width: 100% !important;
    box-shadow: none !important;
    border: none !important;
    border-left: 1px solid #393939 !important;
    margin: 0 !important;
    padding-left: 1rem !important;
    background-color: #262626 !important;
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.3s ease-out;
  }

  .carbon-nav ul li.is-open > ul {
    max-height: 2000px; /* Allow more space for deeply nested mobile menus */
    opacity: 1;
    visibility: visible;
  }

  .carbon-nav ul li ul li a {
    padding: 0.75rem 1rem !important;
    justify-content: flex-start !important;
  }

  .carbon-nav ul li.menu-item-has-children > a:after,
  .carbon-nav ul li.page_item_has_children > a:after {
    margin-left: auto !important;
  }

  /* Reset all rotations on mobile then apply specific ones */
  .carbon-nav ul li.menu-item-has-children > a:after,
  .carbon-nav ul li.page_item_has_children > a:after {
    transform: rotate(0deg) !important;
  }

  .carbon-nav ul li.is-open > a:after {
    transform: rotate(180deg) !important;
  }
}

@media (max-width: 768px) {
  .carbon-container {
    padding: 0 1rem;
  }
}

.carbon-container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.carbon-post {
  border-bottom: 1px solid #e0e0e0;
  padding: 2rem 0;
}

.carbon-post h2 a {
  color: var(--carbon-g100);
  text-decoration: none;
  font-weight: 300;
  font-size: 2rem;
}

.carbon-post h2 a:hover {
  color: var(--carbon-blue-60);
}

.carbon-meta {
  font-size: 0.75rem;
  color: #525252;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.carbon-meta a {
  color: var(--carbon-blue-60);
  text-decoration: none;
}

.carbon-meta a:hover {
  text-decoration: underline;
}

/* Category/Tag chips */
.carbon-categories, .carbon-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.carbon-categories a, .carbon-tags a {
  background-color: #e0e0e0;
  color: #161616;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  text-decoration: none;
  transition: background-color 0.2s;
}

.carbon-categories a:hover, .carbon-tags a:hover {
  background-color: #d1d1d1;
}

.carbon-meta-more {
  transition: transform 0.2s;
  border-radius: 0;
  color: #525252;
}

.carbon-meta-more:hover {
  background-color: #e5e5e5 !important;
  color: #161616;
}

.carbon-btn {
  display: inline-flex;
  align-items: center;
  background-color: var(--carbon-blue-60);
  color: white;
  padding: 0.75rem 1rem;
  text-decoration: none;
  font-size: 0.875rem;
  transition: background-color 0.2s;
}

.carbon-btn:hover {
  background-color: var(--carbon-blue-70);
}

.carbon-footer {
  background-color: var(--carbon-g100);
  color: #f4f4f4;
  padding: 0;
  font-size: 0.875rem;
  margin-top: 4rem;
}

.widget {
  margin-bottom: 2rem;
}

.widget-title {
  font-weight: 600;
  margin-bottom: 1rem;
  color: white;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.widget ul {
  list-style: none;
  padding: 0;
}

.widget li {
  margin-bottom: 0.5rem;
}

.widget a {
  color: #f4f4f4;
  text-decoration: none;
}

.widget a:hover {
  text-decoration: underline;
}

.carbon-hero {
  background-color: var(--carbon-g100);
  color: white;
  padding: 6rem 2rem;
  margin: -2rem -2rem 4rem -2rem;
}

.carbon-hero h1 {
  font-size: 4rem;
  font-weight: 300;
  margin: 0 0 1.5rem 0;
  line-height: 1.1;
  max-width: 900px;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.carbon-hero p {
  font-size: 1.5rem;
  font-weight: 300;
  color: #c6c6c6;
  max-width: 700px;
  line-height: 1.4;
  margin-bottom: 2.5rem;
}

.carbon-btn-secondary {
  display: inline-flex;
  align-items: center;
  background-color: transparent;
  color: white;
  border: 1px solid white;
  padding: 0.75rem 1rem;
  text-decoration: none;
  font-size: 0.875rem;
  transition: background-color 0.2s, color 0.2s;
  margin-left: 1rem;
}

.carbon-btn-secondary:hover {
  background-color: white;
  color: var(--carbon-g100);
}

.carbon-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.carbon-card {
  border: 1px solid #e0e0e0;
  padding: 2rem;
  transition: background-color 0.2s;
}

.carbon-card:hover {
  background-color: var(--carbon-g10);
}

.carbon-card h3 {
  font-weight: 400;
  margin-top: 0;
}

.carbon-404 {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
}

.carbon-404 h1 {
  font-size: 8rem;
  font-weight: 300;
  margin: 0;
  line-height: 1;
  color: var(--carbon-blue-60);
}

.carbon-404 h2 {
  font-size: 2rem;
  font-weight: 400;
  margin: 1rem 0 2rem 0;
}

.carbon-404 p {
  font-size: 1.125rem;
  font-weight: 300;
  color: #525252;
  max-width: 500px;
  margin-bottom: 2rem;
  line-height: 1.5;
}

.carbon-404 .carbon-search-form {
  min-height: 4rem; /* Increased height */
  background-color: #f4f4f4;
  border-bottom: 2px solid #8d8d8d;
}

.carbon-404 .carbon-search-form:focus-within {
  border-bottom-color: var(--carbon-blue-60);
}

.carbon-404 .search-btn-text {
  display: inline; /* Show text on 404 page */
}

.carbon-404 .search-submit {
  background-color: var(--carbon-blue-60);
  color: white;
  padding: 0 2rem;
}

.carbon-404 .search-submit:hover {
  background-color: var(--carbon-blue-70);
  color: white;
}

.carbon-404 .search-field {
  font-size: 1.125rem;
}

/* Search Form Styles */
.carbon-header-search {
  display: flex;
  align-items: stretch;
}

.carbon-search-form {
  display: flex;
  align-items: stretch;
  background-color: #f4f4f4;
  min-height: 3rem;
  width: 100%;
  color: #161616;
}

.carbon-search-form label {
  display: flex;
  align-items: center;
  flex-grow: 1;
}

.carbon-search-form input {
  background: transparent;
  border: none;
  color: #161616;
  padding: 0 1rem;
  font-size: 0.875rem;
  outline: none;
  width: 100%;
  height: 100%;
}

.carbon-search-form button {
  background: transparent;
  border: none;
  color: #525252;
  cursor: pointer;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  transition: all 0.1s;
}

.carbon-search-form button:hover {
  color: #161616;
  background-color: #e5e5e5;
}

.search-btn-text {
  display: none;
  margin-left: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
}

/* Header specific overrides to keep it compact and dark */
.carbon-header-search .carbon-search-form {
  width: auto;
  min-height: 100%;
  background-color: #393939;
}

.carbon-header-search .carbon-search-form input {
  width: 150px;
  transition: width 0.2s;
  color: white;
}

.carbon-header-search .carbon-search-form button {
  color: #c6c6c6;
}

.carbon-header-search .carbon-search-form button:hover {
  color: white;
  background-color: #4d4d4d;
}

.carbon-header-search .carbon-search-form input:focus {
  width: 250px;
  background-color: #4d4d4d;
}

.search-clear {
  background: transparent;
  border: none;
  color: #c6c6c6;
  cursor: pointer;
  padding: 0 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.1s;
  height: 100%;
  outline: none;
}

.search-clear:hover {
  color: white;
  background-color: #4d4d4d;
}

.search-clear svg {
  pointer-events: none;
}

.carbon-search-results-header {
  border-bottom: 1px solid #e0e0e0;
  padding-bottom: 2rem;
  margin-bottom: 2rem;
}

.carbon-search-results-header h1 {
  font-size: 3rem;
  font-weight: 300;
  margin: 0;
}

.carbon-search-results-header h1 span {
  font-weight: 600;
  color: var(--carbon-blue-60);
}

.carbon-search-results-header p {
  color: #525252;
  font-size: 1.125rem;
  margin-top: 0.5rem;
}

.carbon-no-results {
  padding: 4rem 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.carbon-no-results p {
  font-size: 1.25rem;
  color: #525252;
  max-width: 600px;
}

.carbon-pagination {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid #e0e0e0;
}

.carbon-highlight {
  background-color: #f1c21b; /* Carbon yellow */
  color: #161616;
  padding: 0 2px;
}

.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;
}

/* Comments Area */
.carbon-comments {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid #e0e0e0;
}

.comments-title,
.comment-reply-title {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 2rem;
}

.comment-list {
  list-style: none;
  padding: 0;
  margin: 0 0 3rem 0;
}

.comment-list .comment {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid #f4f4f4;
}

.comment-list .comment:last-child {
  border-bottom: none;
}

.comment-body {
  display: flex;
  gap: 1.5rem;
}

.comment-author .avatar {
  border-radius: 0; /* Carbon is square */
}

.comment-meta {
  margin-bottom: 0.5rem;
}

.comment-author .fn {
  font-weight: 600;
  font-style: normal;
}

.comment-metadata {
  font-size: 0.875rem;
  color: #525252;
}

.comment-content {
  margin-top: 1rem;
  line-height: 1.6;
}

.reply {
  margin-top: 1rem;
}

.comment-reply-link {
  font-size: 0.875rem;
  color: var(--carbon-blue-60);
  text-decoration: none;
  font-weight: 600;
}

.comment-reply-link:hover {
  text-decoration: underline;
}

/* Comment Form */
.comment-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 600px;
}

.comment-form p {
  margin: 0;
}

.comment-form label {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  color: #525252;
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: #f4f4f4;
  border: none;
  border-bottom: 1px solid #8d8d8d;
  font-family: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.comment-form input:focus,
.comment-form textarea:focus {
  border-bottom-color: var(--carbon-blue-60);
}

.comment-form .form-submit {
  margin-top: 1rem;
}