/*
 * Premium Blog Plugin - Frontend Styles
 * Modern & Premium Design
 */

/* ========================================
   CSS Variables
======================================== */
:root {
    --pbp-primary: #667eea;
    --pbp-primary-dark: #5a67d8;
    --pbp-secondary: #764ba2;
    --pbp-accent: #ffd700;
    --pbp-dark: #1a1a2e;
    --pbp-dark-light: #16213e;
    --pbp-gray-100: #f7fafc;
    --pbp-gray-200: #edf2f7;
    --pbp-gray-300: #e2e8f0;
    --pbp-gray-400: #cbd5e0;
    --pbp-gray-500: #a0aec0;
    --pbp-gray-600: #718096;
    --pbp-gray-700: #4a5568;
    --pbp-gray-800: #2d3748;
    --pbp-gray-900: #1a202c;
    --pbp-white: #ffffff;
    --pbp-gradient: linear-gradient(135deg, var(--pbp-primary) 0%, var(--pbp-secondary) 100%);
    --pbp-gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --pbp-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
    --pbp-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
    --pbp-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15), 0 5px 10px rgba(0, 0, 0, 0.08);
    --pbp-shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    --pbp-radius: 12px;
    --pbp-radius-lg: 20px;
    --pbp-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --pbp-font: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ========================================
   Base Container
======================================== */
.pbp-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 20px;
    font-family: var(--pbp-font);
}

/* ========================================
   Grid Layouts
======================================== */
.pbp-grid {
    display: grid;
    gap: 30px;
}

.pbp-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.pbp-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.pbp-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1200px) {
    .pbp-cols-4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .pbp-cols-3,
    .pbp-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .pbp-cols-2,
    .pbp-cols-3,
    .pbp-cols-4 {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Blog Card
======================================== */
.pbp-blog-card {
    background: var(--pbp-white);
    border-radius: var(--pbp-radius-lg);
    overflow: hidden;
    box-shadow: var(--pbp-shadow);
    transition: var(--pbp-transition);
    position: relative;
}

.pbp-blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--pbp-shadow-xl);
}

.pbp-blog-card.pbp-featured {
    border: 2px solid var(--pbp-accent);
}

.pbp-card-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Thumbnail */
.pbp-card-thumbnail {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.pbp-card-thumbnail a {
    display: block;
    height: 100%;
}

.pbp-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--pbp-transition);
}

.pbp-blog-card:hover .pbp-thumb-img {
    transform: scale(1.08);
}

.pbp-no-thumb {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--pbp-gradient);
    font-size: 48px;
}

.pbp-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.4) 100%);
    opacity: 0;
    transition: var(--pbp-transition);
}

.pbp-blog-card:hover .pbp-card-overlay {
    opacity: 1;
}

/* Badges */
.pbp-category-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--pbp-gradient);
    color: var(--pbp-white);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
    box-shadow: var(--pbp-shadow);
}

.pbp-featured-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--pbp-accent);
    color: var(--pbp-dark);
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
    z-index: 2;
    box-shadow: var(--pbp-shadow);
}

/* Card Content */
.pbp-card-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

/* Meta */
.pbp-card-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
}

.pbp-card-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--pbp-gray-500);
}

.pbp-card-meta svg {
    flex-shrink: 0;
}

/* Title */
.pbp-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.4;
    margin: 0 0 12px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pbp-card-title a {
    color: var(--pbp-gray-900);
    text-decoration: none;
    transition: var(--pbp-transition);
}

.pbp-card-title a:hover {
    color: var(--pbp-primary);
}

/* Excerpt */
.pbp-card-excerpt {
    font-size: 14px;
    line-height: 1.7;
    color: var(--pbp-gray-600);
    margin: 0 0 20px 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

/* Footer */
.pbp-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--pbp-gray-200);
    margin-top: auto;
}

.pbp-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pbp-author-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--pbp-gray-200);
}

.pbp-author-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--pbp-gray-700);
}

.pbp-read-more {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--pbp-primary);
    text-decoration: none;
    transition: var(--pbp-transition);
}

.pbp-read-more:hover {
    color: var(--pbp-secondary);
    gap: 10px;
}

/* ========================================
   List Layout
======================================== */
.pbp-layout-list .pbp-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.pbp-list-item .pbp-card-inner {
    flex-direction: row;
}

.pbp-list-item .pbp-card-thumbnail {
    width: 320px;
    flex-shrink: 0;
    aspect-ratio: auto;
    height: 220px;
}

.pbp-list-item .pbp-card-content {
    padding: 24px 28px;
}

.pbp-list-item .pbp-card-title {
    font-size: 1.4rem;
}

@media (max-width: 768px) {
    .pbp-list-item .pbp-card-inner {
        flex-direction: column;
    }
    
    .pbp-list-item .pbp-card-thumbnail {
        width: 100%;
        height: auto;
        aspect-ratio: 16/10;
    }
}

/* ========================================
   Slider Layout
======================================== */
.pbp-swiper {
    padding: 20px 10px 60px;
    margin: -20px -10px;
}

.pbp-swiper .swiper-slide {
    height: auto;
}

.pbp-swiper .swiper-button-next,
.pbp-swiper .swiper-button-prev {
    width: 50px;
    height: 50px;
    background: var(--pbp-white);
    border-radius: 50%;
    box-shadow: var(--pbp-shadow-lg);
    transition: var(--pbp-transition);
}

.pbp-swiper .swiper-button-next:after,
.pbp-swiper .swiper-button-prev:after {
    font-size: 18px;
    font-weight: 700;
    color: var(--pbp-primary);
}

.pbp-swiper .swiper-button-next:hover,
.pbp-swiper .swiper-button-prev:hover {
    background: var(--pbp-gradient);
}

.pbp-swiper .swiper-button-next:hover:after,
.pbp-swiper .swiper-button-prev:hover:after {
    color: var(--pbp-white);
}

.pbp-swiper .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: var(--pbp-gray-400);
    transition: var(--pbp-transition);
}

.pbp-swiper .swiper-pagination-bullet-active {
    background: var(--pbp-primary);
    width: 32px;
    border-radius: 6px;
}

/* ========================================
   Pagination
======================================== */
.pbp-pagination {
    margin-top: 50px;
    display: flex;
    justify-content: center;
}

.pbp-pagination ul {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.pbp-pagination li {
    margin: 0;
}

.pbp-pagination a,
.pbp-pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 14px;
    font-size: 15px;
    font-weight: 600;
    color: var(--pbp-gray-700);
    background: var(--pbp-white);
    border: 2px solid var(--pbp-gray-200);
    border-radius: 10px;
    text-decoration: none;
    transition: var(--pbp-transition);
}

.pbp-pagination a:hover {
    border-color: var(--pbp-primary);
    color: var(--pbp-primary);
}

.pbp-pagination .current {
    background: var(--pbp-gradient);
    border-color: transparent;
    color: var(--pbp-white);
}

/* ========================================
   No Posts
======================================== */
.pbp-no-posts {
    text-align: center;
    padding: 80px 20px;
    background: var(--pbp-gray-100);
    border-radius: var(--pbp-radius-lg);
}

.pbp-no-posts-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.pbp-no-posts p {
    font-size: 18px;
    color: var(--pbp-gray-600);
    margin: 0;
}

/* ========================================
   Single Post Page
======================================== */
.pbp-single-wrapper {
    font-family: var(--pbp-font);
    background: var(--pbp-gray-100);
}

/* Hero Section */
.pbp-single-hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    overflow: hidden;
}

.pbp-hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.pbp-hero-gradient {
    background: var(--pbp-gradient);
}

.pbp-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(26, 26, 46, 0.7) 0%, rgba(22, 33, 62, 0.9) 100%);
    z-index: 1;
}

.pbp-hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    text-align: center;
    color: var(--pbp-white);
}

/* Categories */
.pbp-single-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 24px;
}

.pbp-cat-link {
    display: inline-block;
    padding: 8px 18px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    color: var(--pbp-white);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--pbp-transition);
}

.pbp-cat-link:hover {
    background: var(--pbp-accent);
    color: var(--pbp-dark);
}

/* Title */
.pbp-single-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 30px 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Meta */
.pbp-single-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

.pbp-meta-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.pbp-author-img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 3px solid var(--pbp-accent);
}

.pbp-author-info {
    text-align: left;
}

.pbp-author-info .pbp-author-name {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--pbp-white);
}

.pbp-author-date {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}

.pbp-meta-stats {
    display: flex;
    gap: 20px;
}

.pbp-stat {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

/* Content Section */
.pbp-single-content {
    background: var(--pbp-white);
    margin-top: -60px;
    position: relative;
    z-index: 3;
}

.pbp-content-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 80px 30px;
}

.pbp-article-body {
    font-size: 18px;
    line-height: 1.9;
    color: var(--pbp-gray-700);
}

.pbp-article-body h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--pbp-gray-900);
    margin: 48px 0 20px;
}

.pbp-article-body h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--pbp-gray-900);
    margin: 36px 0 16px;
}

.pbp-article-body p {
    margin: 0 0 24px;
}

.pbp-article-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--pbp-radius);
    margin: 32px 0;
}

.pbp-article-body blockquote {
    margin: 40px 0;
    padding: 30px 40px;
    background: var(--pbp-gradient);
    border-radius: var(--pbp-radius);
    color: var(--pbp-white);
    font-size: 1.2rem;
    font-style: italic;
    position: relative;
}

.pbp-article-body blockquote::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 20px;
    font-size: 80px;
    line-height: 1;
    opacity: 0.3;
    font-family: Georgia, serif;
}

.pbp-article-body a {
    color: var(--pbp-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.pbp-article-body a:hover {
    color: var(--pbp-secondary);
}

.pbp-article-body ul,
.pbp-article-body ol {
    margin: 24px 0;
    padding-left: 24px;
}

.pbp-article-body li {
    margin-bottom: 12px;
}

/* Tags */
.pbp-single-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid var(--pbp-gray-200);
}

.pbp-tags-label {
    font-weight: 600;
    color: var(--pbp-gray-700);
}

.pbp-tag-link {
    display: inline-block;
    padding: 8px 16px;
    background: var(--pbp-gray-100);
    border-radius: 50px;
    color: var(--pbp-gray-600);
    font-size: 14px;
    text-decoration: none;
    transition: var(--pbp-transition);
}

.pbp-tag-link:hover {
    background: var(--pbp-gradient);
    color: var(--pbp-white);
}

/* Share Section */
.pbp-share-section {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    margin-top: 40px;
    padding: 24px;
    background: var(--pbp-gray-100);
    border-radius: var(--pbp-radius);
}

.pbp-share-label {
    font-weight: 600;
    color: var(--pbp-gray-700);
}

.pbp-share-buttons {
    display: flex;
    gap: 10px;
}

.pbp-share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    transition: var(--pbp-transition);
    text-decoration: none;
}

.pbp-share-facebook {
    background: #1877f2;
    color: white;
}

.pbp-share-twitter {
    background: #1da1f2;
    color: white;
}

.pbp-share-linkedin {
    background: #0077b5;
    color: white;
}

.pbp-share-whatsapp {
    background: #25d366;
    color: white;
}

.pbp-share-copy {
    background: var(--pbp-gray-200);
    color: var(--pbp-gray-700);
}

.pbp-share-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--pbp-shadow);
}

.pbp-share-copy.copied {
    background: var(--pbp-primary);
    color: white;
}

/* Author Box */
.pbp-author-box {
    display: flex;
    gap: 24px;
    margin-top: 50px;
    padding: 32px;
    background: var(--pbp-gradient-dark);
    border-radius: var(--pbp-radius-lg);
    color: var(--pbp-white);
}

.pbp-author-avatar-lg {
    flex-shrink: 0;
}

.pbp-avatar-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 4px solid var(--pbp-accent);
}

.pbp-author-details {
    flex: 1;
}

.pbp-author-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0 0 8px;
    opacity: 0.7;
}

.pbp-author-name-lg {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 12px;
}

.pbp-author-bio {
    font-size: 15px;
    line-height: 1.7;
    margin: 0;
    opacity: 0.85;
}

@media (max-width: 640px) {
    .pbp-author-box {
        flex-direction: column;
        text-align: center;
    }
}

/* Related Section */
.pbp-related-section {
    background: var(--pbp-gray-100);
    padding: 80px 20px;
}

.pbp-related-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}

.pbp-related-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin: 0 0 50px;
    color: var(--pbp-gray-900);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.pbp-title-icon {
    font-size: 1.5rem;
}

.pbp-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

@media (max-width: 992px) {
    .pbp-related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .pbp-related-grid {
        grid-template-columns: 1fr;
    }
}

.pbp-related-card {
    background: var(--pbp-white);
    border-radius: var(--pbp-radius-lg);
    overflow: hidden;
    box-shadow: var(--pbp-shadow);
    transition: var(--pbp-transition);
}

.pbp-related-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--pbp-shadow-xl);
}

.pbp-related-link {
    display: block;
    text-decoration: none;
}

.pbp-related-thumb {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.pbp-related-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--pbp-transition);
}

.pbp-related-card:hover .pbp-related-img {
    transform: scale(1.08);
}

.pbp-related-no-thumb {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--pbp-gradient);
    font-size: 40px;
}

.pbp-related-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.5) 100%);
}

.pbp-related-content {
    padding: 20px;
}

.pbp-related-cat {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--pbp-primary);
    margin-bottom: 10px;
}

.pbp-related-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--pbp-gray-900);
    margin: 0 0 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pbp-related-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--pbp-gray-500);
}

/* Navigation */
.pbp-post-navigation {
    background: var(--pbp-white);
    border-top: 1px solid var(--pbp-gray-200);
}

.pbp-nav-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

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

.pbp-nav-link {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 24px;
    background: var(--pbp-gray-100);
    border-radius: var(--pbp-radius);
    text-decoration: none;
    transition: var(--pbp-transition);
}

.pbp-nav-link:hover {
    background: var(--pbp-gradient);
    color: var(--pbp-white);
}

.pbp-nav-link:hover .pbp-nav-label,
.pbp-nav-link:hover .pbp-nav-title {
    color: var(--pbp-white);
}

.pbp-nav-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--pbp-gray-500);
}

.pbp-nav-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--pbp-gray-900);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pbp-nav-next {
    text-align: right;
}

.pbp-nav-next .pbp-nav-label {
    justify-content: flex-end;
}

.pbp-nav-placeholder {
    display: none;
}

/* ========================================
   Animations
======================================== */
@keyframes pbp-fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pbp-blog-card {
    animation: pbp-fadeIn 0.5s ease forwards;
}

.pbp-blog-card:nth-child(1) { animation-delay: 0.1s; }
.pbp-blog-card:nth-child(2) { animation-delay: 0.2s; }
.pbp-blog-card:nth-child(3) { animation-delay: 0.3s; }
.pbp-blog-card:nth-child(4) { animation-delay: 0.4s; }
.pbp-blog-card:nth-child(5) { animation-delay: 0.5s; }
.pbp-blog-card:nth-child(6) { animation-delay: 0.6s; }

/* ========================================
   Dark Mode (Optional)
======================================== */
@media (prefers-color-scheme: dark) {
    .pbp-blog-card {
        background: var(--pbp-dark-light);
    }
    
    .pbp-card-title a {
        color: var(--pbp-white);
    }
    
    .pbp-card-excerpt {
        color: var(--pbp-gray-400);
    }
    
    .pbp-card-footer {
        border-color: rgba(255, 255, 255, 0.1);
    }
    
    .pbp-author-name {
        color: var(--pbp-gray-300);
    }
}