/*
Theme Name: Izdakara Knowledge Exchange
Theme URI: https://izdakara.com
Author: Izdakara Team
Author URI: https://izdakara.com
Description: A professional academic knowledge exchange platform with AdSense-ready zones, top-tier security headers, and full RTL/Urdu support.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: izdakara
Tags: education, blog, custom-colors, custom-logo, full-width-template, rtl-language-support, two-columns, left-sidebar
*/

/* ============================================
   IZDAKARA DESIGN TOKENS
   ============================================ */
:root {
  /* Brand Colors */
  --color-primary: #004ac6;
  --color-primary-container: #2563eb;
  --color-on-primary: #ffffff;
  --color-on-primary-fixed-variant: #003ea8;
  --color-on-primary-container: #eeefff;
  --color-inverse-primary: #b4c5ff;
  --color-primary-fixed: #dbe1ff;
  --color-primary-fixed-dim: #b4c5ff;
  --color-on-primary-fixed: #00174b;

  --color-secondary: #565e74;
  --color-on-secondary: #ffffff;
  --color-secondary-container: #dae2fd;
  --color-on-secondary-container: #5c647a;
  --color-secondary-fixed: #dae2fd;
  --color-secondary-fixed-dim: #bec6e0;
  --color-on-secondary-fixed: #131b2e;
  --color-on-secondary-fixed-variant: #3f465c;

  --color-tertiary: #006056;
  --color-on-tertiary: #ffffff;
  --color-tertiary-container: #007b6e;
  --color-on-tertiary-container: #b1fff1;
  --color-tertiary-fixed: #71f8e4;
  --color-tertiary-fixed-dim: #4fdbc8;
  --color-on-tertiary-fixed: #00201c;
  --color-on-tertiary-fixed-variant: #005048;

  --color-error: #ba1a1a;
  --color-on-error: #ffffff;
  --color-error-container: #ffdad6;
  --color-on-error-container: #93000a;

  --color-surface: #f8f9ff;
  --color-surface-dim: #cbdbf5;
  --color-surface-bright: #f8f9ff;
  --color-surface-container-lowest: #ffffff;
  --color-surface-container-low: #eff4ff;
  --color-surface-container: #e5eeff;
  --color-surface-container-high: #dce9ff;
  --color-surface-container-highest: #d3e4fe;
  --color-surface-variant: #d3e4fe;
  --color-surface-tint: #0053db;

  --color-on-surface: #0b1c30;
  --color-on-surface-variant: #434655;
  --color-inverse-surface: #213145;
  --color-inverse-on-surface: #eaf1ff;

  --color-outline: #737686;
  --color-outline-variant: #c3c6d7;

  --color-background: #f8f9ff;
  --color-on-background: #0b1c30;

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-reading: 'Source Serif 4', Georgia, serif;
  --font-ui: 'Inter', system-ui, -apple-system, sans-serif;
  --font-urdu: 'Noto Nastaliq Urdu', serif;

  /* Spacing */
  --spacing-unit: 4px;
  --container-max: 1280px;
  --gutter: 24px;
  --margin-desktop: 40px;
  --margin-mobile: 16px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Elevation */
  --shadow-1: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-2: 0px 4px 20px rgba(15, 23, 42, 0.05);
  --shadow-3: 0px 10px 30px rgba(37, 99, 235, 0.10);
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 24px;
  color: var(--color-on-background);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.rtl, [dir="rtl"] { direction: rtl; font-family: var(--font-urdu); line-height: calc(24px * 1.2); }

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding-left: 1.5em; }
[dir="rtl"] ul, [dir="rtl"] ol { padding-left: 0; padding-right: 1.5em; }

/* ============================================
   TYPOGRAPHY SCALE
   ============================================ */
.font-display-lg {
  font-family: var(--font-display);
  font-size: 48px; font-weight: 700;
  line-height: 56px; letter-spacing: -0.02em;
}
.font-display-lg-mobile {
  font-family: var(--font-display);
  font-size: 32px; font-weight: 700;
  line-height: 40px; letter-spacing: -0.01em;
}
.font-headline-md {
  font-family: var(--font-display);
  font-size: 24px; font-weight: 600; line-height: 32px;
}
.font-body-reading {
  font-family: var(--font-reading);
  font-size: 18px; font-weight: 400; line-height: 30px;
}
.font-body-ui { font-family: var(--font-ui); font-size: 16px; font-weight: 400; line-height: 24px; }
.font-label-sm { font-family: var(--font-ui); font-size: 13px; font-weight: 500; line-height: 18px; letter-spacing: 0.02em; }
.font-label-caps { font-family: var(--font-ui); font-size: 12px; font-weight: 600; line-height: 16px; letter-spacing: 0.05em; text-transform: uppercase; }

h1 { font-family: var(--font-display); font-size: 48px; font-weight: 700; line-height: 56px; letter-spacing: -0.02em; }
h2 { font-family: var(--font-display); font-size: 32px; font-weight: 700; line-height: 40px; }
h3 { font-family: var(--font-display); font-size: 24px; font-weight: 600; line-height: 32px; }
h4 { font-family: var(--font-ui); font-size: 18px; font-weight: 600; line-height: 28px; }
h5, h6 { font-family: var(--font-ui); font-size: 16px; font-weight: 600; line-height: 24px; }

@media (max-width: 767px) {
  h1 { font-size: 32px; line-height: 40px; }
  h2 { font-size: 24px; line-height: 32px; }
}

/* ============================================
   ELEVATION UTILITIES
   ============================================ */
.elevation-0 { background-color: #F8FAFC; }
.elevation-1 { background-color: var(--color-surface-container-lowest); border: 1px solid #E2E8F0; }
.elevation-2 { box-shadow: var(--shadow-2); }
.elevation-3 { box-shadow: var(--shadow-3); }

/* ============================================
   CHIP / BADGE
   ============================================ */
.chip {
  display: inline-flex; align-items: center;
  background-color: #F0FDFA; color: #0F766E;
  border-radius: var(--radius-md);
  font-family: var(--font-ui); font-size: 12px; font-weight: 600;
  letter-spacing: 0.05em; text-transform: uppercase;
  padding: 4px 10px;
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
  max-width: var(--container-max);
  margin-left: auto; margin-right: auto;
  padding-left: var(--margin-mobile);
  padding-right: var(--margin-mobile);
}
@media (min-width: 768px) {
  .container { padding-left: var(--margin-desktop); padding-right: var(--margin-desktop); }
}

/* Site wrapper */
#page { display: flex; flex-direction: column; min-height: 100vh; }
#content { flex: 1; }

/* Two-column content + sidebar */
.content-area { width: 100%; }
.widget-area { width: 100%; }
@media (min-width: 1024px) {
  .has-sidebar #primary { display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start; }
}
[dir="rtl"].has-sidebar #primary { direction: rtl; }

/* Reading layout for single posts */
.reading-layout { max-width: 720px; margin: 0 auto; }

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
#masthead {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-outline-variant);
  position: sticky; top: 0; z-index: 50;
  width: 100%;
}
.site-header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: 24px;
}
.site-branding { display: flex; align-items: center; gap: 12px; }
.site-branding a { display: flex; align-items: center; gap: 12px; color: inherit; }
.site-branding a:hover { text-decoration: none; }
.custom-logo { height: 40px; width: auto; border-radius: var(--radius-md); }
.site-title {
  font-family: var(--font-display); font-size: 24px; font-weight: 700;
  color: var(--color-primary); display: none;
}
@media (min-width: 768px) { .site-title { display: block; } }

/* Primary nav */
#site-navigation { display: none; }
@media (min-width: 768px) { #site-navigation { display: flex; align-items: center; } }
#primary-menu { display: flex; align-items: center; gap: 32px; list-style: none; padding: 0; margin: 0; }
#primary-menu li a {
  color: var(--color-on-surface-variant);
  font-size: 16px; font-weight: 500;
  transition: color 0.15s;
}
#primary-menu li a:hover,
#primary-menu li.current-menu-item a { color: var(--color-primary); text-decoration: none; }

/* Header actions */
.header-actions { display: flex; align-items: center; gap: 12px; }
.btn-login {
  font-size: 13px; font-weight: 500; color: var(--color-on-surface-variant);
  background: transparent; border: none; cursor: pointer;
  padding: 8px 12px; transition: color 0.15s; display: none;
}
@media (min-width: 480px) { .btn-login { display: inline-block; } }
.btn-login:hover { color: var(--color-primary); }
.btn-signup {
  background: var(--color-primary); color: var(--color-on-primary);
  font-size: 13px; font-weight: 500; border: none; cursor: pointer;
  padding: 8px 18px; border-radius: var(--radius-md);
  transition: background 0.15s;
}
.btn-signup:hover { background: var(--color-on-primary-fixed-variant); }

/* Mobile menu toggle */
.menu-toggle {
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-md); padding: 8px; cursor: pointer;
  color: var(--color-on-surface);
}
@media (min-width: 768px) { .menu-toggle { display: none; } }

/* Mobile nav drawer */
.mobile-nav {
  display: none; position: fixed; inset: 0; z-index: 100;
  background: rgba(15,23,42,0.6); backdrop-filter: blur(4px);
}
.mobile-nav.open { display: block; }
.mobile-nav-inner {
  position: absolute; top: 0; left: 0; bottom: 0; width: 280px;
  background: var(--color-surface-container-lowest);
  padding: 24px; overflow-y: auto;
  box-shadow: var(--shadow-3);
}
[dir="rtl"] .mobile-nav-inner { left: auto; right: 0; }
.mobile-nav ul { list-style: none; padding: 0; margin: 24px 0; }
.mobile-nav ul li a {
  display: block; padding: 12px 0;
  color: var(--color-on-surface); font-size: 18px; font-weight: 500;
  border-bottom: 1px solid var(--color-outline-variant);
}
.mobile-nav-close {
  position: absolute; top: 16px; right: 16px;
  background: transparent; border: none; cursor: pointer;
  font-size: 24px; color: var(--color-on-surface-variant);
}
[dir="rtl"] .mobile-nav-close { right: auto; left: 16px; }

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--color-primary); color: var(--color-on-primary);
  font-family: var(--font-ui); font-size: 13px; font-weight: 500;
  padding: 10px 20px; border-radius: var(--radius-md);
  border: none; cursor: pointer; transition: background 0.15s;
  text-decoration: none;
}
.btn-primary:hover { background: var(--color-on-primary-fixed-variant); color: var(--color-on-primary); text-decoration: none; }

.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--color-on-surface);
  font-family: var(--font-ui); font-size: 13px; font-weight: 500;
  padding: 10px 20px; border-radius: var(--radius-md);
  border: 1px solid var(--color-outline); cursor: pointer;
  transition: background 0.15s; text-decoration: none;
}
.btn-secondary:hover { background: var(--color-surface-container-highest); text-decoration: none; }

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--color-surface-container-lowest);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-xl);
  padding: 24px;
  transition: box-shadow 0.2s;
}
.card:hover { box-shadow: var(--shadow-2); }
.card-title { font-family: var(--font-display); color: var(--color-on-surface); margin-bottom: 8px; }
.card-meta { font-size: 12px; color: var(--color-on-surface-variant); }

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
  background: var(--color-surface-container-low);
  padding: 64px var(--margin-mobile);
  text-align: center;
  position: relative; overflow: hidden;
}
@media (min-width: 768px) { .hero-section { padding: 128px var(--margin-desktop); } }
.hero-section::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 50%, #2563eb 0%, transparent 50%);
  opacity: 0.08; pointer-events: none;
}
.hero-inner { max-width: 768px; margin: 0 auto; position: relative; z-index: 1; }
.hero-title { color: var(--color-on-surface); margin-bottom: 24px; }
.hero-subtitle { font-family: var(--font-reading); font-size: 18px; line-height: 30px; color: var(--color-on-surface-variant); margin-bottom: 40px; }

/* Search bar */
.search-bar {
  display: flex; align-items: center; gap: 8px;
  background: var(--color-surface-container-lowest);
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-xl);
  padding: 6px;
  max-width: 640px; margin: 0 auto;
  transition: box-shadow 0.2s;
}
.search-bar:focus-within { box-shadow: 0 0 0 2px var(--color-primary); border-color: transparent; }
.search-bar .search-icon { color: var(--color-on-surface-variant); padding: 0 8px; font-size: 22px; }
.search-bar input {
  flex: 1; border: none; background: transparent;
  font-size: 16px; color: var(--color-on-surface);
  padding: 10px 8px; outline: none;
}
.search-bar input::placeholder { color: var(--color-outline); }
.search-bar button { flex-shrink: 0; }

.hero-ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-top: 32px; }

/* ============================================
   STATS SECTION
   ============================================ */
.stats-section {
  padding: 48px 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-outline-variant);
}
.stats-grid { display: grid; grid-template-columns: 1fr; gap: 24px; text-align: center; }
@media (min-width: 768px) { .stats-grid { grid-template-columns: repeat(3, 1fr); } }
.stat-item { padding: 24px; border-radius: var(--radius-xl); border: 1px solid #E2E8F0; }
.stat-value { font-family: var(--font-display); font-size: 32px; font-weight: 700; color: var(--color-primary); margin-bottom: 8px; }
.stat-label { font-size: 12px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--color-on-surface-variant); }

/* ============================================
   FEATURED RESEARCH GRID
   ============================================ */
.section-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 40px; }
.section-title { font-family: var(--font-display); font-size: 24px; font-weight: 600; color: var(--color-on-surface); }
.section-subtitle { font-size: 16px; color: var(--color-on-surface-variant); margin-top: 4px; }
.section-link { font-size: 13px; font-weight: 500; color: var(--color-primary); white-space: nowrap; }
.section-link:hover { text-decoration: underline; }

.bento-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 768px) { .bento-grid { grid-template-columns: repeat(3, 1fr); grid-auto-rows: 250px; } }
.bento-card-large { grid-column: span 1; background: var(--color-surface-container-lowest); border: 1px solid #E2E8F0; border-radius: var(--radius-xl); padding: 32px; display: flex; flex-direction: column; justify-content: space-between; position: relative; overflow: hidden; cursor: pointer; transition: box-shadow 0.2s; }
@media (min-width: 768px) { .bento-card-large { grid-column: span 2; grid-row: span 2; } }
.bento-card-large:hover { box-shadow: var(--shadow-2); }
.bento-card-sm { background: var(--color-surface-container-lowest); border: 1px solid #E2E8F0; border-radius: var(--radius-xl); padding: 24px; display: flex; flex-direction: column; justify-content: space-between; cursor: pointer; transition: box-shadow 0.2s; }
.bento-card-sm:hover { box-shadow: var(--shadow-2); }

.card-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.card-author { display: flex; align-items: center; gap: 12px; }
.card-author-avatar { width: 40px; height: 40px; border-radius: var(--radius-full); object-fit: cover; }
.card-author-name { font-size: 13px; font-weight: 600; color: var(--color-on-surface); }
.card-author-date { font-size: 12px; color: var(--color-on-surface-variant); text-transform: uppercase; letter-spacing: 0.05em; }
.card-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 24px; padding-top: 16px; border-top: 1px solid rgba(195,198,215,0.3); }
.card-stats { display: flex; gap: 16px; color: var(--color-on-surface-variant); font-size: 13px; }
.card-stat { display: flex; align-items: center; gap: 4px; }

/* ============================================
   ADSENSE AD ZONES
   ============================================ */
.ad-zone {
  width: 100%; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-surface-container-low);
  border: 1px dashed var(--color-outline-variant);
  border-radius: var(--radius-md);
  position: relative;
}
.ad-zone::before {
  content: 'Advertisement';
  position: absolute; top: 4px; left: 8px;
  font-size: 10px; color: var(--color-outline);
  text-transform: uppercase; letter-spacing: 0.05em;
  pointer-events: none;
}
.ad-zone-sidebar { min-height: 250px; }
.ad-zone-in-content { min-height: 90px; margin: 32px 0; }
.ad-zone-footer { min-height: 90px; margin: 0 auto 24px; max-width: 728px; }
.ad-zone ins { display: block; }

/* ============================================
   SIDEBAR
   ============================================ */
.widget-area { padding-top: 8px; }
.widget { margin-bottom: 32px; }
.widget-title {
  font-family: var(--font-ui); font-size: 12px; font-weight: 600;
  letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--color-on-surface-variant);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}
.widget ul { list-style: none; padding: 0; }
.widget ul li { padding: 8px 0; border-bottom: 1px solid var(--color-outline-variant); }
.widget ul li a { color: var(--color-on-surface); font-size: 14px; }
.widget ul li a:hover { color: var(--color-primary); }
.widget-adsense { padding: 0; background: transparent; border: none; }

/* ============================================
   SINGLE POST / ARTICLE
   ============================================ */
.entry-header { margin-bottom: 40px; }
.entry-meta { font-size: 13px; color: var(--color-on-surface-variant); margin-bottom: 16px; }
.entry-meta a { color: var(--color-on-surface-variant); }
.entry-title { font-family: var(--font-display); color: var(--color-on-surface); margin-bottom: 16px; }
.entry-content { font-family: var(--font-reading); font-size: 18px; line-height: 30px; color: var(--color-on-background); }
.entry-content p { margin-bottom: 24px; }
.entry-content h2 { font-family: var(--font-display); font-size: 28px; font-weight: 700; margin: 40px 0 16px; }
.entry-content h3 { font-family: var(--font-display); font-size: 22px; margin: 32px 0 12px; }
.entry-content blockquote { border-left: 4px solid var(--color-primary); padding: 16px 24px; background: var(--color-surface-container-low); margin: 32px 0; border-radius: 0 var(--radius-md) var(--radius-md) 0; }
[dir="rtl"] .entry-content blockquote { border-left: none; border-right: 4px solid var(--color-primary); border-radius: var(--radius-md) 0 0 var(--radius-md); }
.entry-content a { color: var(--color-primary); text-decoration: underline; }
.entry-content img { border-radius: var(--radius-md); margin: 24px 0; }

/* Reading progress bar */
#reading-progress {
  position: fixed; top: 0; left: 0; height: 2px;
  background: var(--color-primary); width: 0%;
  z-index: 200; transition: width 0.1s linear;
}

/* ============================================
   FOOTER
   ============================================ */
#colophon {
  background: var(--color-surface-container-highest);
  border-top: 1px solid var(--color-outline-variant);
  margin-top: 48px;
}
.footer-inner {
  display: flex; flex-direction: column; gap: 32px;
  padding: 48px var(--margin-mobile);
}
@media (min-width: 768px) {
  .footer-inner { flex-direction: row; justify-content: space-between; padding: 48px var(--margin-desktop); }
}
.footer-brand .site-title-footer { font-family: var(--font-display); font-size: 24px; font-weight: 700; color: var(--color-primary); margin-bottom: 12px; }
.footer-brand p { font-size: 16px; color: var(--color-on-surface-variant); max-width: 280px; }
.footer-links h4 { font-size: 13px; font-weight: 600; color: var(--color-on-surface); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-links ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-links ul li a { color: var(--color-on-surface-variant); font-size: 16px; }
.footer-links ul li a:hover { color: var(--color-on-surface); }
.footer-ad-zone { border-top: 1px solid rgba(195,198,215,0.5); padding: 24px var(--margin-desktop); }
.footer-bottom {
  border-top: 1px solid rgba(195,198,215,0.5);
  padding: 24px var(--margin-mobile); text-align: center;
  font-size: 13px; color: var(--color-on-surface-variant);
}
@media (min-width: 768px) { .footer-bottom { padding: 24px var(--margin-desktop); } }

/* ============================================
   FORMS
   ============================================ */
.izdakara-form label {
  display: block; font-size: 13px; font-weight: 500;
  color: var(--color-on-surface); margin-bottom: 6px;
}
.izdakara-form input[type="text"],
.izdakara-form input[type="email"],
.izdakara-form input[type="password"],
.izdakara-form input[type="search"],
.izdakara-form textarea,
.izdakara-form select {
  width: 100%;
  background: transparent;
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 16px; color: var(--color-on-surface);
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}
.izdakara-form input:focus,
.izdakara-form textarea:focus,
.izdakara-form select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.izdakara-form .form-group { margin-bottom: 20px; }

/* ============================================
   PAGINATION
   ============================================ */
.pagination { display: flex; gap: 8px; justify-content: center; margin: 40px 0; }
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: var(--radius-md);
  font-size: 14px; font-weight: 500;
  border: 1px solid var(--color-outline-variant);
  color: var(--color-on-surface); text-decoration: none;
}
.pagination .current { background: var(--color-primary); color: var(--color-on-primary); border-color: var(--color-primary); }
.pagination a:hover { background: var(--color-surface-container); }

/* ============================================
   COMMENTS
   ============================================ */
.comment-list { list-style: none; padding: 0; }
.comment { padding: 24px 0; border-bottom: 1px solid var(--color-outline-variant); }
.comment-author { font-weight: 600; color: var(--color-on-surface); margin-bottom: 4px; }
.comment-date { font-size: 12px; color: var(--color-on-surface-variant); margin-bottom: 12px; }
.comment-content { font-family: var(--font-reading); font-size: 16px; line-height: 26px; }

/* ============================================
   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; width: 1px; word-wrap: normal !important;
}
.skip-link { position: absolute; top: -40px; left: 0; background: var(--color-primary); color: #fff; padding: 8px 16px; z-index: 9999; border-radius: 0 0 var(--radius-md) 0; }
.skip-link:focus { top: 0; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* ============================================
   UTILITIES
   ============================================ */
.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-on-surface-variant); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0; }
.line-clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* ============================================
   PRINT
   ============================================ */
@media print {
  #masthead, #colophon, .ad-zone, .widget-area, #reading-progress { display: none !important; }
  .entry-content { font-size: 12pt; }
}