/*
Theme Name: InverterACPCB Pro
Theme URI: https://inverteracpcb.com/
Author: InverterACPCB Team
Author URI: https://inverteracpcb.com/
Description: Advanced, modern, high-converting WordPress & WooCommerce theme engineered specifically for Inverter AC PCB repair services, PCB sales, spare parts, and electronics diagnostic labs. Fully editable with Elementor.
Version: 1.8.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: inverteracpcb
Tags: e-commerce, custom-menu, featured-images, flexible-header, full-width-template, theme-options, translation-ready, woocommerce, elementor
*/

/* ==========================================================================
   Base Design Tokens & Custom Properties
   ========================================================================== */
:root {
  --pcb-primary: #0070f3;
  --pcb-primary-dark: #0051bb;
  --pcb-primary-light: #38bdf8;
  --pcb-cyan: #06b6d4;
  --pcb-cyan-glow: rgba(6, 182, 212, 0.4);
  --pcb-teal: #0ea5e9;
  --pcb-accent: #10b981; /* Circuit Green */
  --pcb-accent-glow: rgba(16, 185, 129, 0.35);
  --pcb-amber: #f59e0b;
  --pcb-danger: #ef4444;

  /* Neutrals */
  --pcb-dark-900: #070d18;
  --pcb-dark-800: #0b1528;
  --pcb-dark-700: #132238;
  --pcb-dark-600: #1e324f;
  --pcb-slate-500: #64748b;
  --pcb-slate-400: #94a3b8;
  --pcb-slate-300: #cbd5e1;
  --pcb-slate-200: #e2e8f0;
  --pcb-slate-100: #f1f5f9;
  --pcb-slate-50: #f8fafc;
  --pcb-white: #ffffff;

  /* Typography */
  --pcb-font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --pcb-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Radii & Shadows */
  --pcb-radius-sm: 6px;
  --pcb-radius-md: 10px;
  --pcb-radius-lg: 16px;
  --pcb-radius-xl: 24px;
  --pcb-radius-full: 9999px;

  --pcb-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --pcb-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --pcb-shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.15), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --pcb-shadow-cyan: 0 8px 24px -4px rgba(6, 182, 212, 0.35);
  --pcb-shadow-accent: 0 8px 24px -4px rgba(16, 185, 129, 0.35);

  --pcb-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --pcb-container-width: 1280px;

  /* Safe Area Insets for Modern Mobile Displays (Samsung Galaxy S24 Ultra, iPhone Dynamic Island) */
  --pcb-safe-top: env(safe-area-inset-top, 0px);
  --pcb-safe-bottom: env(safe-area-inset-bottom, 0px);
  --pcb-safe-left: env(safe-area-inset-left, 0px);
  --pcb-safe-right: env(safe-area-inset-right, 0px);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
  max-width: 100vw;
}

body {
  font-family: var(--pcb-font-body);
  color: var(--pcb-dark-800);
  background-color: var(--pcb-slate-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  max-width: 100vw;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--pcb-font-heading);
  color: var(--pcb-dark-900);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

h1 { font-size: clamp(2rem, 4vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.75rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 0.95rem; }

p {
  margin-bottom: 1.25rem;
  color: var(--pcb-dark-700);
}

a {
  color: var(--pcb-primary);
  text-decoration: none;
  transition: var(--pcb-transition);
}

a:hover {
  color: var(--pcb-cyan);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Containers */
.pcb-container {
  width: 100%;
  max-width: var(--pcb-container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.pcb-container-fluid {
  width: 100%;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Utility buttons */
.pcb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--pcb-font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--pcb-radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--pcb-transition);
  text-decoration: none;
  line-height: 1.2;
}

.pcb-btn-primary {
  background: linear-gradient(135deg, var(--pcb-primary) 0%, var(--pcb-cyan) 100%);
  color: var(--pcb-white);
  box-shadow: 0 4px 14px rgba(0, 112, 243, 0.35);
}

.pcb-btn-primary:hover {
  background: linear-gradient(135deg, var(--pcb-cyan) 0%, var(--pcb-primary) 100%);
  color: var(--pcb-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.45);
}

.pcb-btn-accent {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: var(--pcb-white);
  box-shadow: var(--pcb-shadow-accent);
}

.pcb-btn-accent:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: var(--pcb-white);
  transform: translateY(-2px);
}

.pcb-btn-outline {
  background: transparent;
  color: var(--pcb-dark-900);
  border-color: var(--pcb-slate-300);
}

.pcb-btn-outline:hover {
  border-color: var(--pcb-primary);
  color: var(--pcb-primary);
  background: rgba(0, 112, 243, 0.05);
}

.pcb-btn-white {
  background: var(--pcb-white);
  color: var(--pcb-dark-900);
  box-shadow: var(--pcb-shadow-md);
}

.pcb-btn-white:hover {
  background: var(--pcb-slate-100);
  color: var(--pcb-primary);
}

/* Badge pills */
.pcb-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.75rem;
  border-radius: var(--pcb-radius-full);
}

.pcb-badge-tested {
  background: rgba(16, 185, 129, 0.12);
  color: #065f46;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.pcb-badge-warranty {
  background: rgba(6, 182, 212, 0.12);
  color: #0e7490;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.pcb-badge-sale {
  background: rgba(239, 68, 68, 0.12);
  color: #b91c1c;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ==========================================================================
   WordPress Standard Core Styles & Required Classes
   ========================================================================== */

/* Screen Reader Text (Accessibility) */
.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;
}

.screen-reader-text:focus {
  background-color: var(--pcb-white);
  border-radius: var(--pcb-radius-sm);
  box-shadow: var(--pcb-shadow-lg);
  clip: auto !important;
  clip-path: none;
  color: var(--pcb-primary);
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  height: auto;
  left: 1rem;
  top: 1rem;
  line-height: normal;
  padding: 0.75rem 1.25rem;
  text-decoration: none;
  width: auto;
  z-index: 100000;
}

/* Alignments */
.alignleft {
  float: left;
  margin-right: 1.5rem;
  margin-bottom: 1.5rem;
}

.alignright {
  float: right;
  margin-left: 1.5rem;
  margin-bottom: 1.5rem;
}

.aligncenter {
  clear: both;
  display: block;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 1.5rem;
}

.alignwide {
  margin-left: -4rem;
  margin-right: -4rem;
  max-width: calc(100% + 8rem);
}

.alignfull {
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  max-width: 100vw;
  width: 100vw;
}

@media (max-width: 768px) {
  .alignleft, .alignright {
    float: none;
    margin-left: auto;
    margin-right: auto;
    display: block;
  }
  .alignwide, .alignfull {
    margin-left: 0;
    margin-right: 0;
    max-width: 100%;
    width: 100%;
  }
}

/* Captions */
.wp-caption {
  margin-bottom: 1.5rem;
  max-width: 100%;
  text-align: center;
}

.wp-caption img[class*="wp-image-"] {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.wp-caption .wp-caption-text {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--pcb-slate-500);
  margin-top: 0.5rem;
  margin-bottom: 0;
}

.wp-caption-text {
  text-align: center;
}

/* Post Formats & Sticky */
.sticky {
  position: relative;
}

.bypostauthor {
  position: relative;
}

/* Galleries */
.gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.gallery-item {
  flex: 1 1 calc(33.333% - 1rem);
  max-width: calc(33.333% - 1rem);
  text-align: center;
}

.gallery-caption {
  font-size: 0.8rem;
  color: var(--pcb-slate-500);
  margin-top: 0.25rem;
}

/* Pagination & Page Links */
.page-links {
  clear: both;
  margin: 1.5rem 0;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-weight: 600;
}

.page-links a,
.page-links span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--pcb-radius-sm);
  background: var(--pcb-white);
  border: 1px solid var(--pcb-slate-200);
  color: var(--pcb-dark-800);
  text-decoration: none;
}

.page-links span.current,
.page-links a:hover {
  background: var(--pcb-primary);
  color: var(--pcb-white);
  border-color: var(--pcb-primary);
}

/* Blockquotes, Code, Pre */
blockquote {
  border-left: 4px solid var(--pcb-cyan);
  padding: 0.75rem 1.5rem;
  margin: 1.5rem 0;
  background: var(--pcb-slate-100);
  border-radius: 0 var(--pcb-radius-md) var(--pcb-radius-md) 0;
  font-style: italic;
  color: var(--pcb-dark-800);
}

code, kbd, samp {
  font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.875em;
  background: var(--pcb-slate-200);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

pre {
  background: var(--pcb-dark-900);
  color: #f1f5f9;
  padding: 1.25rem;
  border-radius: var(--pcb-radius-md);
  overflow-x: auto;
  margin: 1.5rem 0;
}

pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

/* Comments Section */
.pcb-comments-area {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--pcb-slate-200);
}

.pcb-comments-title {
  font-size: 1.35rem;
  margin-bottom: 1.5rem;
  color: var(--pcb-dark-900);
}

.comment-list {
  list-style: none;
  padding: 0;
  margin: 0 0 2.5rem;
}

.comment-list .comment {
  margin-bottom: 1.5rem;
  list-style: none;
}

.comment-body {
  background: var(--pcb-white);
  border: 1px solid var(--pcb-slate-200);
  border-radius: var(--pcb-radius-md);
  padding: 1.25rem;
  position: relative;
}

.comment-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.comment-author .avatar {
  border-radius: 50%;
  width: 44px;
  height: 44px;
}

.comment-author .fn {
  font-weight: 700;
  color: var(--pcb-dark-900);
}

.comment-metadata {
  font-size: 0.8rem;
  color: var(--pcb-slate-400);
}

.comment-content {
  font-size: 0.95rem;
  color: var(--pcb-dark-700);
  line-height: 1.6;
}

.comment-list .children {
  list-style: none;
  padding-left: 2rem;
  margin-top: 1rem;
}

.reply {
  margin-top: 0.75rem;
  text-align: right;
}

.comment-reply-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--pcb-primary);
  text-decoration: none;
}

.comment-respond {
  background: var(--pcb-white);
  border: 1px solid var(--pcb-slate-200);
  border-radius: var(--pcb-radius-lg);
  padding: 2rem;
  margin-top: 2rem;
}

.comment-reply-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--pcb-dark-900);
}

.comment-form p {
  margin-bottom: 1rem;
}

.comment-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--pcb-dark-800);
  margin-bottom: 0.35rem;
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--pcb-slate-300);
  border-radius: var(--pcb-radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--pcb-dark-900);
  background: var(--pcb-white);
}

.comment-form input:focus,
.comment-form textarea:focus {
  outline: none;
  border-color: var(--pcb-primary);
  box-shadow: 0 0 0 3px rgba(0, 112, 243, 0.15);
}

.pcb-no-comments {
  color: var(--pcb-slate-500);
  font-style: italic;
  padding: 1rem 0;
}

/* ==========================================================================
   WordPress Standard Typography & Content Elements (Theme Unit Test)
   ========================================================================== */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
  background: var(--pcb-white);
  border-radius: var(--pcb-radius-md);
  overflow: hidden;
  box-shadow: var(--pcb-shadow-sm);
}

th, td {
  padding: 0.85rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--pcb-slate-200);
}

th {
  background: var(--pcb-slate-100);
  color: var(--pcb-dark-900);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

tbody tr:hover {
  background-color: rgba(6, 182, 212, 0.04);
}

dl {
  margin: 1.5rem 0;
}

dt {
  font-weight: 700;
  color: var(--pcb-dark-900);
  margin-top: 0.75rem;
}

dd {
  margin-left: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--pcb-slate-500);
}

/* Post Navigation (Previous / Next) */
.post-navigation {
  margin: 2.5rem 0 1.5rem;
}

.post-navigation .nav-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 640px) {
  .post-navigation .nav-links {
    grid-template-columns: 1fr;
  }
}

.nav-previous a,
.nav-next a {
  display: block;
  padding: 1.25rem;
  background: var(--pcb-white);
  border: 1px solid var(--pcb-slate-200);
  border-radius: var(--pcb-radius-md);
  text-decoration: none;
  transition: var(--pcb-transition);
}

.nav-previous a:hover,
.nav-next a:hover {
  border-color: var(--pcb-primary);
  transform: translateY(-2px);
  box-shadow: var(--pcb-shadow-md);
}

.nav-subtitle {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--pcb-cyan);
  margin-bottom: 0.35rem;
}

.nav-title {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--pcb-dark-900);
  line-height: 1.35;
}

/* Post Tags */
.pcb-post-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.5rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--pcb-slate-200);
  border-bottom: 1px solid var(--pcb-slate-200);
}

.pcb-tags-title {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--pcb-dark-900);
}

.pcb-tag-pills a {
  display: inline-block;
  font-size: 0.8rem;
  padding: 0.25rem 0.75rem;
  background: var(--pcb-slate-100);
  color: var(--pcb-dark-700);
  border-radius: var(--pcb-radius-full);
  text-decoration: none;
  border: 1px solid var(--pcb-slate-200);
  transition: var(--pcb-transition);
  margin-right: 0.35rem;
  margin-bottom: 0.35rem;
}

.pcb-tag-pills a:hover {
  background: var(--pcb-primary);
  color: var(--pcb-white);
  border-color: var(--pcb-primary);
}

/* Admin Post / Page Edit Link */
.pcb-entry-footer {
  margin-top: 1.5rem;
  padding-top: 1rem;
}

.edit-link a {
  display: inline-flex;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--pcb-slate-500);
  text-decoration: none;
  padding: 0.35rem 0.85rem;
  border-radius: var(--pcb-radius-sm);
  background: var(--pcb-slate-100);
  border: 1px solid var(--pcb-slate-200);
  transition: var(--pcb-transition);
}

.edit-link a:hover {
  background: var(--pcb-dark-800);
  color: var(--pcb-white);
}

/* Search Form Component */
.pcb-search-form {
  width: 100%;
}

.pcb-search-input-wrap {
  display: flex;
  align-items: center;
  background: var(--pcb-white);
  border: 1.5px solid var(--pcb-slate-300);
  border-radius: var(--pcb-radius-md);
  padding: 0.35rem 0.5rem 0.35rem 1rem;
  gap: 0.65rem;
  transition: var(--pcb-transition);
}

.pcb-search-input-wrap:focus-within {
  border-color: var(--pcb-primary);
  box-shadow: 0 0 0 3px rgba(0, 112, 243, 0.15);
}

.pcb-search-field {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 0.95rem;
  color: var(--pcb-dark-900);
  outline: none;
  min-width: 0;
}

.pcb-search-input-wrap svg {
  color: var(--pcb-slate-400);
  flex-shrink: 0;
}

.search-submit {
  padding: 0.6rem 1.25rem;
  font-size: 0.85rem;
}

/* Core WordPress Sidebar Widgets Styling */
.widget select {
  width: 100%;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--pcb-slate-300);
  border-radius: var(--pcb-radius-sm);
  background: var(--pcb-white);
  font-size: 0.9rem;
  color: var(--pcb-dark-800);
}

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

.widget ul li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--pcb-slate-100);
  font-size: 0.9rem;
}

.widget ul li:last-child {
  border-bottom: none;
}

.widget ul li a {
  color: var(--pcb-dark-800);
  text-decoration: none;
  transition: var(--pcb-transition);
}

.widget ul li a:hover {
  color: var(--pcb-primary);
  padding-left: 4px;
}

.widget_tag_cloud .tagcloud a {
  display: inline-block;
  margin: 0 0.3rem 0.4rem 0;
  padding: 0.25rem 0.65rem;
  font-size: 0.8rem !important;
  background: var(--pcb-slate-100);
  color: var(--pcb-dark-700);
  border: 1px solid var(--pcb-slate-200);
  border-radius: var(--pcb-radius-full);
  text-decoration: none;
  transition: var(--pcb-transition);
}

.widget_tag_cloud .tagcloud a:hover {
  background: var(--pcb-primary);
  color: var(--pcb-white);
  border-color: var(--pcb-primary);
}

.widget_calendar table {
  margin: 0;
}

.widget_calendar caption {
  font-weight: 700;
  padding: 0.5rem;
  text-align: center;
}