/*
Theme Name: LWAI
Theme URI: https://latestwithai.com/
Author: LWAI Team
Description: A lightweight, New York Times-inspired WordPress theme for AI journalism.
Version: 1.1.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: lwai
Tags: blog, news, custom-logo, translation-ready
*/

/* ==========================================================================
   1. CSS Variables & Reset
   ========================================================================== */
:root {
/* Backgrounds */
--ft-bg-main: #FFF1E5;
--ft-bg-card: #F2E9DF;
--ft-bg-highlight: #E9D8C8;
--ft-bg-dark: #1A1A1A;
--ft-bg-white: #FFFFFF;

/* Text */
--ft-text-headline: #1A1A1A;
--ft-text-body: #333333;
--ft-text-muted: #66605A;
--ft-text-inverse: #FFFFFF;

/* Accents */
--ft-teal: #0D7680;
--ft-teal-hover: #095A62;
--ft-crimson: #990F3D;
--ft-border: #E8DCC8;

/* Typography */
--ff-branding: 'Playfair Display', Georgia, serif;
--ff-heading:  'Playfair Display', Georgia, serif;
--ff-body:     'DM Sans', Arial, sans-serif;
--ff-ui:       'Libre Franklin', 'Helvetica Neue', Helvetica, Arial, sans-serif;

/* Spacing */
--sp-xs:  4px;
--sp-sm:  8px;
--sp-md:  16px;
--sp-lg:  24px;
--sp-xl:  48px;
--sp-xxl: 64px;

--max-width: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }

html, body { overflow-x: hidden; }

body {
margin: 0;
padding: 0;
font-family: var(--ff-body);
line-height: 1.7;
color: var(--ft-text-body);
background-color: var(--ft-bg-main);
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}

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

a { color: var(--ft-teal); text-decoration: none; }
a:hover { color: var(--ft-teal-hover); text-decoration: underline; }

/* ==========================================================================
   2. Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
font-family: var(--ff-heading);
margin-top: 0;
margin-bottom: var(--sp-md);
line-height: 1.2;
color: var(--ft-text-headline);
font-weight: 700;
}

/* In-article sub-section headings */
.article-content h2 {
font-size: 26px;
font-family: var(--ff-heading);
font-weight: 700;
margin: 32px 0 12px;
color: var(--ft-text-headline);
}

/* ==========================================================================
   3. Layout
   ========================================================================== */
.site-container {
max-width: var(--max-width);
margin: 0 auto;
padding: 0 var(--sp-md);
}

/* Search button */
.search-toggle {
cursor: pointer;
min-height: 44px;
min-width: 44px;
}
.search-toggle:hover { opacity: 0.6; }

/* Search overlay */
.search-overlay {
position: fixed;
inset: 0;
background: rgba(255, 241, 229, 0.97);
z-index: 9000;
display: none;
align-items: flex-start;
padding-top: 80px;
justify-content: center;
}
.search-overlay.is-open { display: flex; }

.search-overlay-inner {
position: relative;
width: 100%;
max-width: 600px;
padding: 0 var(--sp-md);
}

.search-overlay input[type="search"] {
width: 100%;
font-size: 28px;
border: none;
border-bottom: 2px solid var(--ft-border);
padding: 8px 0;
outline: none;
font-family: var(--ff-heading);
background: transparent;
}

.search-close {
position: absolute;
top: -60px;
right: 0;
background: none;
border: none;
font-size: 32px;
cursor: pointer;
color: var(--ft-text-headline);
padding: 8px;
min-height: 44px;
min-width: 44px;
line-height: 1;
}

/* Site branding */
.site-branding {
text-align: center;
margin: var(--sp-lg) 0;
}

.site-title {
font-family: var(--ff-branding);
font-size: clamp(2.5rem, 6vw, 5rem);
font-weight: normal;
margin: 0;
line-height: 1;
}
.site-title a { color: var(--ft-text-headline); }

.custom-logo-link img { max-width: 300px; margin: 0 auto; }

/* ── Navigation ── */

#site-navigation a {
font-size: 13px;
text-transform: uppercase;
letter-spacing: 0.08em;
font-family: var(--ff-ui);
font-weight: 700;
color: var(--ft-text-headline);
text-decoration: none;
transition: color 0.25s ease, text-decoration-color 0.25s ease;
text-decoration-color: transparent;
}
#site-navigation a:hover { 
color: var(--ft-teal);
text-decoration: underline; 
text-decoration-color: var(--ft-teal);
text-underline-offset: 4px;
}

/* Mobile sticky bar (hidden on desktop) */
.mobile-sticky-bar { display: none; }

/* Mobile menu toggle (hidden on desktop) */
.mobile-menu-toggle,
.mobile-menu-toggle-sticky,
.menu-toggle {
display: none;
background: none;
border: none;
font-size: 24px;
cursor: pointer;
padding: 8px;
min-height: 44px;
min-width: 44px;
color: var(--ft-text-headline);
}

/* ==========================================================================
   5. Kickers & Category Labels
   ========================================================================== */
.kicker,
.cat-label,
.category-label {
font-size: 12px;
font-family: var(--ff-ui);
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.05em;
color: var(--ft-teal);
display: block;
margin-bottom: 6px;
text-decoration: none;
}
.kicker:hover, .cat-label:hover, .category-label:hover {
color: var(--ft-teal);
text-decoration: underline;
}

/* ==========================================================================
   6. Section Titles
   ========================================================================== */
.section-title {
font-size: 13px;
letter-spacing: 0.08em;
font-weight: 700;
text-transform: uppercase;
font-family: var(--ff-ui);
border-top: 1px solid var(--ft-border);
border-bottom: 1px solid var(--ft-border);
padding: 8px 0 6px;
margin-bottom: 16px;
color: var(--ft-text-headline);
}

/* ==========================================================================
   7. Shared Card Elements
   ========================================================================== */
.entry-meta {
font-family: var(--ff-ui);
font-size: 0.85rem;
color: var(--ft-text-muted);
margin-bottom: var(--sp-sm);
}

.entry-summary {
font-size: 1.1rem;
color: var(--ft-text-muted);
}

.card-byline {
font-size: 12px;
color: var(--ft-text-muted);
font-family: var(--ff-ui);
margin-top: 8px;
display: block;
}

/* Tapable card overlay: full-card click target via headline link pseudo-element */
.story-sidebar,
.nyt-horizontal-story,
.nyt-stacked-story,
.nyt-split-story,
.nyt-compact-story { position: relative; }

.story-sidebar .entry-title a::after,
.nyt-horizontal-story .entry-title a::after,
.nyt-stacked-story .entry-title a::after,
.nyt-split-story .entry-title a::after,
.nyt-compact-story .entry-title a::after {
content: '';
position: absolute;
inset: 0;
z-index: 1;
}

/* ==========================================================================
   8. Blog Index Grid (index.php)
   ========================================================================== */
.news-grid {
display: grid;
grid-template-columns: 1fr;
gap: var(--sp-lg);
}

@media (min-width: 768px) {
.news-grid { grid-template-columns: 2fr 1fr; }
.news-grid-columns { border-left: 1px solid var(--ft-border); padding-left: var(--sp-lg); }
}
@media (min-width: 1024px) {
.news-grid { grid-template-columns: 1fr 2fr 1fr; }
.news-grid > div:not(:first-child) { border-left: 1px solid var(--ft-border); padding-left: var(--sp-lg); }
}

.story {
margin-bottom: var(--sp-lg);
padding-bottom: var(--sp-lg);
border-bottom: 1px solid var(--ft-border);
}
.story:last-child { border-bottom: none; }
.story-lead .entry-title { font-size: 2.5rem; }

/* ==========================================================================
   9. Custom Utilities & Interactive Features
   ========================================================================== */

/* Link Hover Animation */
.hover-primary { 
transition: color 0.25s ease-in-out, text-decoration-color 0.25s ease-in-out; 
text-decoration-color: transparent !important;
}
.hover-primary:hover { 
color: var(--ft-teal) !important; 
text-decoration: underline !important; 
text-decoration-color: var(--ft-teal) !important;
text-underline-offset: 4px;
}

/* Image Hover Zoom Animation */
article a.d-block {
overflow: hidden;
display: block;
border-radius: 4px;
}
article a.d-block img {
transition: transform 0.4s ease;
}
article a.d-block:hover img {
transform: scale(1.05);
}

/* Bootstrap Border Extensions */
@media (min-width: 768px) {
.border-end-md { border-right: 1px solid var(--ft-border) !important; }
.border-md-top-0 { border-top: 0 !important; }
.border-md-bottom-0 { border-bottom: 0 !important; }
}
@media (min-width: 992px) {
.border-end-lg { border-right: 1px solid var(--ft-border) !important; }
}

/* Sub-card spacing fixes */
.center-sub-stories {
margin-top: var(--sp-lg);
}

.photo-credit { display: block; text-align: right; font-size: 0.65rem; color: var(--ft-text-muted); font-family: var(--ff-ui); margin-top: 4px; }

/* Section grid (blog listing variant) */
.section-grid { display: grid; grid-template-columns: 1fr; gap: var(--sp-lg); }

@media (min-width: 768px) {
.section-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.section-grid .story { border-bottom: none; border-right: 1px solid var(--ft-border); padding-bottom: 0; padding-right: var(--sp-lg); }
.section-grid .story:last-child { border-right: none; padding-right: 0; }
}
.section-grid .entry-title { font-size: 1.2rem; }

/* ==========================================================================
   11. Single Post — NYT Article Layout
   ========================================================================== */
.narrow-constraint { max-width: 600px; margin: 0 auto; }

/* Article hero header */
.article-hero-header {
background: var(--ft-bg-white);
padding-top: var(--sp-xl);
padding-bottom: var(--sp-lg);
margin-bottom: 0;
text-align: left;
border-top: 1px solid var(--ft-border);
}

.article-hero-text {
max-width: 680px;
margin: 0 auto;
padding: 0 var(--sp-md);
}

.article-title {
font-family: var(--ff-heading);
font-size: clamp(2.2rem, 5vw, 3rem);
font-weight: 700;
line-height: 1.1;
color: var(--ft-text-headline);
margin-bottom: var(--sp-md);
}

.article-dek {
font-size: 1.25rem;
line-height: 1.4;
color: var(--ft-text-muted);
font-family: var(--ff-body);
font-weight: 400;
margin-bottom: 24px;
}

.article-hero-meta {
font-family: var(--ff-ui);
margin-bottom: var(--sp-md);
display: flex;
align-items: center;
gap: 12px;
}

.live-kicker {
background-color: var(--ft-crimson);
color: var(--ft-bg-white);
font-weight: 700;
padding: 2px 6px;
font-size: 0.8rem;
border-radius: 2px;
letter-spacing: 0.5px;
}

.updated-time { font-size: 0.85rem; color: var(--ft-text-muted); font-weight: 600; }

.article-share-tools { border-top: 1px solid var(--ft-border); padding-top: var(--sp-md); margin-bottom: var(--sp-xl); }

.share-btn {
background: none;
border: 1px solid var(--ft-border);
padding: 10px 16px;
border-radius: 20px;
font-family: var(--ff-ui);
font-size: 0.8rem;
color: var(--ft-text-headline);
display: inline-flex;
align-items: center;
gap: 8px;
cursor: pointer;
font-weight: 600;
min-height: 44px;
transition: background 0.2s;
}
.share-btn:hover { background-color: var(--ft-bg-card); }

.article-hero-image { max-width: 1000px; margin: 0 auto; padding: 0 var(--sp-md); }
.article-hero-image .hero-img { width: auto; height: auto; display: block; margin: 0 auto; }
.article-hero-image .media-caption,
.media-caption { margin-top: var(--sp-sm); text-align: right; font-family: var(--ff-ui); font-size: 0.75rem; color: var(--ft-text-muted); }

.article-meta-block {
border-top: 1px solid var(--ft-border);
border-bottom: 1px solid var(--ft-border);
padding: var(--sp-sm) 0;
margin-bottom: var(--sp-xl);
display: flex;
flex-direction: column;
}

.byline-name { font-family: var(--ff-ui); font-weight: bold; font-size: 1rem; color: var(--ft-text-headline); }
.byline-name a { color: inherit; }

.article-date {
font-family: var(--ff-ui);
font-size: 14px;
color: var(--ft-text-muted);
text-transform: none;
margin-top: 4px;
}

.article-content {
font-size: 1.25rem;
line-height: 1.7;
color: var(--ft-text-headline);
}
.article-content p { margin-bottom: var(--sp-lg); }
.article-content img { max-width: 100%; height: auto; width: auto; margin: 0 auto; display: block; }

/* Drop cap */
.article-content > p:first-of-type::first-letter {
float: left;
font-family: var(--ff-heading);
font-size: 4.5rem;
line-height: 0.8;
padding-top: 4px;
padding-right: 8px;
padding-left: 3px;
color: var(--ft-text-headline);
}

/* ==========================================================================
   11b. Author Box
   ========================================================================== */
.post-author-box {
display: flex;
align-items: flex-start;
gap: 20px;
padding: 32px 0;
margin: 32px auto;
border-top: 1px solid var(--ft-border);
border-bottom: 1px solid var(--ft-border);
}

.post-author-box .author-avatar img {
border-radius: 50%;
width: 80px;
height: 80px;
object-fit: cover;
}

.post-author-box .author-info {
flex: 1;
}

.post-author-box .author-name {
margin-top: 0;
margin-bottom: 8px;
font-family: var(--ff-heading);
font-size: 1.5rem;
color: var(--ft-text-headline);
}

.post-author-box .author-name a {
color: inherit;
text-decoration: none;
}
.post-author-box .author-name a:hover {
text-decoration: underline;
}

.post-author-box .author-bio {
font-size: 1rem;
line-height: 1.6;
color: var(--ft-text-muted);
margin: 0;
font-family: var(--ff-body);
}

/* ==========================================================================
   12. Post Navigation
   ========================================================================== */
.post-navigation { margin-top: var(--sp-xl); margin-bottom: var(--sp-xl); border-top: 2px solid var(--ft-border); padding-top: var(--sp-lg); }

.nav-links { display: flex; justify-content: space-between; gap: var(--sp-lg); }
.nav-previous, .nav-next { flex: 1; display: flex; flex-direction: column; text-decoration: none !important; }
.nav-next { text-align: right; }
.nav-next .nav-content { flex-direction: row-reverse; }

.nav-label { font-family: var(--ff-ui); font-size: 0.8rem; font-weight: bold; text-transform: uppercase; color: var(--ft-text-muted); margin-bottom: var(--sp-sm); display: block; }
.nav-content { display: flex; align-items: center; gap: var(--sp-md); }
.nav-content img { width: 100px; height: 100px; object-fit: cover; }
.nav-title { font-family: var(--ff-heading); font-size: 1.15rem; font-weight: 700; line-height: 1.3; color: var(--ft-text-headline); }
.nav-previous:hover .nav-title, .nav-next:hover .nav-title { text-decoration: underline; }

/* ==========================================================================
   13. Related Posts
   ========================================================================== */
.related-posts { border-top: 2px solid var(--ft-border); padding-top: 16px; margin-top: 48px; margin-bottom: 48px; }
.related-posts .section-title { border-top: none; padding-top: 0; }

.related-posts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-lg); }

.related-post-card img { width: 100%; height: 80px; object-fit: cover; display: block; margin-bottom: 8px; }
.related-post-card .entry-title { font-size: 1rem; line-height: 1.3; margin-bottom: 0; }
.related-post-card .entry-title a { color: var(--ft-text-headline); }
.related-post-card .cat-label { font-size: 11px; }

/* ==========================================================================
   14. Reading Progress Bar
   ========================================================================== */
#reading-progress {
position: fixed;
top: 0;
left: 0;
height: 3px;
background: var(--ft-crimson);
width: 0%;
z-index: 9999;
pointer-events: none;
transition: width 0.1s linear;
}

/* ==========================================================================
   15. Footer Nav
   ========================================================================== */
.footer-nav-menu { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px 24px; list-style: none; margin: 0; padding: 0; text-align: left; }
.footer-nav-menu a { font-size: 13px; color: var(--ft-text-headline); text-transform: uppercase; letter-spacing: 0.05em; text-decoration: none; transition: color 0.2s ease; }
.footer-nav-menu a:hover { color: var(--ft-teal); text-decoration: underline; text-underline-offset: 3px; }

/* ==========================================================================
   16. Back-to-Top Button
   ========================================================================== */
#back-to-top {
position: fixed;
bottom: 24px;
right: 16px;
width: 40px;
height: 40px;
background: var(--ft-bg-dark);
color: var(--ft-bg-white);
border: none;
border-radius: 50%;
font-size: 20px;
z-index: 999;
display: none;
cursor: pointer;
align-items: center;
justify-content: center;
}

/* ==========================================================================
   17. Single Post Containers (legacy compat)
   ========================================================================== */
.single-post-container { max-width: 800px; margin: 0 auto; }

/* ==========================================================================
   18. Mobile — max-width: 767px
   ========================================================================== */
@media (max-width: 767px) {

/* ── Mobile sticky bar ── */
.mobile-sticky-bar {
position: fixed;
top: 0;
left: 0;
right: 0;
height: 48px;
background: var(--ft-bg-white);
border-bottom: 1px solid var(--ft-border);
z-index: 1000;
display: flex;
align-items: center;
justify-content: space-between;
padding: 0 16px;
}
.mobile-site-title {
font-family: var(--ff-branding);
font-size: 20px;
font-weight: 700;
color: var(--ft-text-headline);
text-decoration: none;
}
.mobile-menu-toggle,
.mobile-menu-toggle-sticky {
display: flex;
align-items: center;
justify-content: center;
}

body { padding-top: 48px; }

/* ── Desktop nav hidden, toggle-controlled ── */
.site-navigation { display: none; border: none; padding: 0; margin-bottom: 0; }
.site-navigation.nav-open { display: block; }
.site-navigation.nav-open .nav-menu { flex-direction: column; gap: 0; padding: 0; border-top: 1px solid var(--ft-border); }
.site-navigation.nav-open a { display: flex; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--ft-border); font-size: 16px; min-height: 44px; letter-spacing: 0; }

/* ── Layout ── */
.site-container { padding: 0 14px; }
.site-header-top .header-tagline { display: none; }
.site-branding { margin: 8px 0; }
.site-title { font-size: clamp(2rem, 8vw, 3rem); }

/* ── Homepage ── */
.front-page-top { gap: 16px; }
.front-col-center { order: -1; }
.front-col-center .story-lead .entry-title { font-size: 1.8rem; text-align: left; }
.front-section { padding-top: 16px; margin-bottom: 32px; }
.section-title { font-size: 12px; }

/* Grid fixes */
.nyt-split-stories { grid-template-columns: 1fr; }
.nyt-split-story:first-child { border-right: none; padding-right: 0; border-bottom: 1px solid var(--ft-border); padding-bottom: 24px; margin-bottom: 16px; }
.nyt-compact-split { grid-template-columns: 1fr; }
.center-sub-stories { grid-template-columns: 1fr; }
.center-sub-stories .story-sub-lead:first-child { border-right: none; padding-right: 0; border-bottom: 1px solid var(--ft-border); padding-bottom: 24px; }

/* ── Single post ── */
.article-hero-header { padding-top: 24px; padding-bottom: 16px; }
.article-hero-text { padding: 0; }
.narrow-constraint { max-width: 100%; margin: 0; padding: 0; }
.article-content { font-size: 1.1rem; }
.article-content h2 { font-size: 22px; }
.article-dek { font-size: 1.1rem; }
.article-content > p:first-of-type::first-letter { font-size: 2.8rem; line-height: 0.85; padding-right: 6px; }
.entry-summary { font-size: 1rem; }
.story-sidebar { gap: 10px; }

/* Author Box */
.post-author-box {
padding: 24px 0;
margin: 24px 0;
gap: 16px;
}
.post-author-box .author-avatar img {
width: 60px;
height: 60px;
}
.post-author-box .author-name {
font-size: 1.25rem;
}

/* Post nav */
.nav-links { flex-direction: column; gap: 16px; }
.nav-next { text-align: left; }
.nav-next .nav-content { flex-direction: row; }
.nav-content img { width: 70px; height: 70px; }

/* Related posts */
.related-posts-grid { grid-template-columns: 1fr; }

/* Touch targets */
.share-btn { padding: 10px 16px; min-height: 44px; }
button, a.button { min-height: 44px; display: inline-flex; align-items: center; }

/* Footer */
.footer-nav-section ul { grid-template-columns: 1fr; }
.footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

/* ── Desktop: hide mobile-only elements ── */
@media (min-width: 768px) {
.mobile-sticky-bar,
.mobile-menu-toggle,
.mobile-menu-toggle-sticky { display: none; }
}