/*
Theme Name: KL Tech Blog
Author: Gemini
Description: A custom dark mode theme with side-by-side logo text, social icons, blue branding glow, and fully clickable cards.
Version: 1.9
*/

:root {
    --bg-color: #0f0f0f;
    --card-bg: #212121;
    --border-color: #30363d;
    --text-main: #ffffff;
    --text-muted: #8b949e;
    --accent-primary: #00bfff; /* KL Tech Lightbulb Blue */
    --accent: #4fc3f7; /* KL Tech Cyan */
    --glow: rgba(79, 195, 247, 0.15); /* Faint cyan glow */
    --glow-strong: rgba(79, 195, 247, 0.35); /* Hover glow */
    --font-sans: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-sans);
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

a {
    color: var(--text-main);
    text-decoration: none;
    transition: all 0.2s ease-in-out;
}

a:hover {
    color: var(--accent);
}

/* =========================================
   Header, Search & Socials
   ========================================= */
.site-header {
    padding-top: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.logo-wrapper img {
    max-width: 90px;
    height: auto;
    display: block;
}

.site-name { margin: 0; }
.site-name a { 
    font-size: 1.8rem; 
    font-weight: 700; 
    color: var(--text-main);
    letter-spacing: 0.5px;
}

.header-tools {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* Search Form */
.search-form { display: flex; }
.search-field {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: white;
    padding: 0.6rem 1rem;
    border-radius: 8px 0 0 8px;
    outline: none;
    font-size: 0.9rem;
}
.search-field:focus { border-color: var(--accent); }
.search-submit {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-left: none;
    color: var(--text-muted);
    padding: 0 0.8rem;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    transition: color 0.2s;
}
.search-submit:hover { color: var(--accent); }

/* SVG Social Icons */
.social-links { display: flex; gap: 0.6rem; }
.social-links a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 38px;
    height: 38px;
    background-color: var(--card-bg);
    border-radius: 50%;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}
.social-links a:hover {
    background-color: var(--accent);
    color: var(--bg-color);
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 0 15px var(--glow-strong);
}

/* =========================================
   Primary Navigation
   ========================================= */
.main-navigation {
    flex-grow: 1;
    display: flex;
    justify-content: center;
}

.main-navigation ul,
.main-navigation div > ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    list-style: none;
    margin: 0;
    padding: 0;
    justify-content: center;
}

.main-navigation li {
    margin: 0;
}

.main-navigation a {
    display: inline-block;
    background-color: var(--card-bg);
    color: var(--text-main);
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease-in-out;
}

.main-navigation a:hover {
    color: #ffffff;
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--glow-strong);
    transform: translateY(-4px);
}

.main-navigation .current_page_item > a,
.main-navigation .current-menu-item > a {
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px var(--glow);
}

/* =========================================
   Main Layout & Components
   ========================================= */
.main-layout { display: flex; gap: 2.5rem; }
.content-area { flex: 1; min-width: 0; }
.sidebar { width: 320px; flex-shrink: 0; }

.card, .hero-post, .widget, .single-featured-image {
    background-color: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 0 15px var(--glow);
    border: 1px solid var(--border-color); 
    overflow: hidden;
    position: relative; /* REQUIRED FOR STRETCHED LINK */
}

.widget { padding: 1.5rem; margin-bottom: 2rem; }
.widget h3 { margin-top: 0; margin-bottom: 1.2rem; font-size: 1.25rem; }

.tags-cloud { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.tag-pill { background: #161b22; padding: 0.4rem 0.8rem; border-radius: 6px; font-size: 0.85rem; border: 1px solid var(--border-color); }
.tag-pill:hover { background: var(--accent); color: var(--bg-color); border-color: var(--accent); }

/* Sections */
.section-title { font-size: 1.75rem; margin-top: 0; margin-bottom: 1.5rem; font-weight: 700; color: var(--text-main); }
.recommended-section { margin-bottom: 3.5rem; }

/* Grids */
.recommended-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; }
.posts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }

/* =========================================
   Clickable Cards Logic (Stretched Link)
   ========================================= */
.card-title a::after,
.post-title a::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1;
}

.card:hover .card-title a,
.hero-post:hover .post-title a {
    color: var(--accent);
}

/* Card Specifics */
.card { display: flex; flex-direction: column; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.card:hover { transform: translateY(-4px); box-shadow: 0 0 25px var(--glow-strong); border-color: var(--accent-primary); }
.card-img { height: 200px; background-color: #181818; border-bottom: 1px solid var(--border-color); }
.card-img img { width: 100%; height: 100%; object-fit: cover; }
.card-content { padding: 1.5rem; flex-grow: 1; display: flex; flex-direction: column; }
.card-title { font-size: 1.25rem; margin: 0.5rem 0; line-height: 1.3; }
.card-excerpt { font-size: 0.95rem; color: var(--text-muted); margin-top: auto; }

/* Hero Post */
.hero-post { display: flex; margin-bottom: 3rem; min-height: 350px; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.hero-post:hover { transform: translateY(-4px); box-shadow: 0 0 25px var(--glow-strong); border-color: var(--accent-primary); }
.hero-content { flex: 1; padding: 2.5rem; display: flex; flex-direction: column; justify-content: center; border-right: 1px solid var(--border-color); }
.hero-image { flex: 1; background-color: #181818; }
.hero-image img { width: 100%; height: 100%; object-fit: cover; }
.meta { display: flex; align-items: center; gap: 1rem; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1rem; flex-wrap: wrap; }
.tag { background-color: #161b22; padding: 0.3rem 0.8rem; border-radius: 6px; color: var(--text-main); font-weight: 500; border: 1px solid var(--border-color); }
.post-title { font-size: 2.2rem; margin: 0.5rem 0 1rem 0; font-weight: 700; }

/* Single Post */
.single-header { margin-bottom: 2rem; }
.single-meta { margin-bottom: 1rem; }
.single-title { font-size: 2.5rem; margin: 1rem 0; line-height: 1.2; }
.single-featured-image { margin-bottom: 2.5rem; border-radius: 16px; overflow: hidden; border: 1px solid var(--border-color); box-shadow: 0 0 15px var(--glow); }
.single-featured-image img { width: 100%; height: auto; display: block; }
.single-content { font-size: 1.15rem; line-height: 1.8; color: #c9d1d9; }
.single-content h2, .single-content h3, .single-content h4 { color: var(--text-main); margin-top: 2.5rem; margin-bottom: 1rem; }
.single-content img { max-width: 100%; height: auto; border-radius: 8px; margin: 1.5rem 0; border: 1px solid var(--border-color); }

/* =========================================
   Pagination Buttons (New)
   ========================================= */
.kl-pagination {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 3.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.kl-page-btn {
    display: inline-block;
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--accent-primary);
    padding: 0.8rem 2.5rem;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    z-index: 10;
}

.kl-page-btn:hover {
    background-color: var(--accent-primary);
    color: #0f0f0f;
    box-shadow: 0 0 20px var(--glow-strong);
    transform: translateY(-2px);
}

/* =========================================
   Responsive & Mobile Optimization
   ========================================= */
@media (max-width: 992px) {
    .main-layout { flex-direction: column; }
    .sidebar { width: 100%; }
    .header-inner { flex-direction: column; justify-content: center; text-align: center; gap: 1.2rem; }
    
    .main-navigation { width: 100%; order: 3; margin-top: 0.5rem; }
    .main-navigation ul, .main-navigation div > ul {
        flex-wrap: nowrap;
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 0.8rem; 
        -webkit-overflow-scrolling: touch;
    }
    .main-navigation a { white-space: nowrap; }
    
    .main-navigation ul::-webkit-scrollbar,
    .main-navigation div > ul::-webkit-scrollbar { height: 4px; }
    .main-navigation ul::-webkit-scrollbar-thumb,
    .main-navigation div > ul::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
    
    .header-tools { justify-content: center; }
}

@media (max-width: 768px) {
    .hero-post { flex-direction: column; }
    .hero-content { border-right: none; border-bottom: 1px solid var(--border-color); padding: 1.5rem; }
    .hero-image { min-height: 250px; }
    .post-title { font-size: 1.8rem; }
    .single-title { font-size: 2rem; }
}