/**
 * OpenClaw Blog Styles
 * V1 Theme - Futuristic Pastel White/Grey/Orange
 */

/* CSS Variables */
:root {
    --primary-orange: #FF8C42;
    --primary-orange-light: #FFA96A;
    --primary-orange-dark: #E67328;
    
    --pastel-white: #F8F9FA;
    --pastel-white-dark: #E9ECEF;
    
    --pastel-grey: #6C757D;
    --pastel-grey-light: #ADB5BD;
    --pastel-grey-dark: #495057;
    
    --bg-gradient: linear-gradient(135deg, #F8F9FA 0%, #E9ECEF 100%);
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --card-shadow-hover: 0 8px 30px rgba(255, 140, 66, 0.2);
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-gradient);
    color: var(--pastel-grey-dark);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-orange);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.nav-brand:hover {
    color: var(--primary-orange-dark);
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: var(--pastel-grey-dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-orange);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-orange);
    border-radius: 2px;
}

/* Blog Header */
.blog-header {
    background: linear-gradient(135deg, var(--primary-orange) 0%, var(--primary-orange-light) 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
    margin-bottom: 40px;
}

.blog-header h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.blog-header p {
    font-size: 1.2rem;
    opacity: 0.95;
}

/* Search & Filter Controls */
.blog-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    gap: 20px;
    flex-wrap: wrap;
}

.search-box {
    display: flex;
    gap: 10px;
    flex: 1;
    max-width: 500px;
}

.search-input {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid var(--pastel-grey-light);
    border-radius: 25px;
    font-size: 1rem;
    transition: var(--transition-smooth);
    background: white;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-orange);
    box-shadow: 0 0 0 3px rgba(255, 140, 66, 0.1);
}

.btn-search {
    padding: 12px 25px;
    background: var(--primary-orange);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition-smooth);
}

.btn-search:hover {
    background: var(--primary-orange-dark);
    transform: scale(1.05);
}

.filter-box {
    display: flex;
    gap: 15px;
}

.filter-select {
    padding: 12px 20px;
    border: 2px solid var(--pastel-grey-light);
    border-radius: 25px;
    background: white;
    color: var(--pastel-grey-dark);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-orange);
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

/* Blog Card */
.blog-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: var(--transition-bounce);
    cursor: pointer;
    position: relative;
}

.blog-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--card-shadow-hover);
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-orange), var(--primary-orange-light));
    opacity: 0;
    transition: var(--transition-smooth);
}

.blog-card:hover::before {
    opacity: 1;
}

.blog-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.blog-card:hover .blog-card-image {
    transform: scale(1.05);
}

.blog-card-content {
    padding: 25px;
}

.blog-card-category {
    display: inline-block;
    padding: 5px 15px;
    background: rgba(255, 140, 66, 0.1);
    color: var(--primary-orange);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.blog-card-title {
    font-size: 1.4rem;
    color: var(--pastel-grey-dark);
    margin-bottom: 15px;
    line-height: 1.3;
    transition: var(--transition-smooth);
}

.blog-card:hover .blog-card-title {
    color: var(--primary-orange);
}

.blog-card-excerpt {
    color: var(--pastel-grey);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.blog-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--pastel-white-dark);
    font-size: 0.9rem;
    color: var(--pastel-grey-light);
}

.blog-card-hashtags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.hashtag {
    color: var(--primary-orange);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition-smooth);
}

.hashtag:hover {
    color: var(--primary-orange-dark);
    text-decoration: underline;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 40px 0;
}

.pagination button {
    padding: 12px 20px;
    background: white;
    border: 2px solid var(--pastel-grey-light);
    border-radius: 10px;
    color: var(--pastel-grey-dark);
    cursor: pointer;
    transition: var(--transition-smooth);
    font-weight: 600;
}

.pagination button:hover,
.pagination button.active {
    background: var(--primary-orange);
    border-color: var(--primary-orange);
    color: white;
    transform: scale(1.05);
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Article Page */
.article-container {
    max-width: 900px;
    padding: 40px 20px;
}

.article-content {
    background: white;
    border-radius: 20px;
    padding: 50px;
    box-shadow: var(--card-shadow);
    margin-bottom: 40px;
}

.article-title {
    font-size: 2.5rem;
    color: var(--pastel-grey-dark);
    margin-bottom: 20px;
    line-height: 1.2;
}

.article-meta {
    display: flex;
    gap: 20px;
    color: var(--pastel-grey-light);
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--pastel-white-dark);
}

.article-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 15px;
    margin-bottom: 40px;
    box-shadow: var(--card-shadow);
}

.article-body {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--pastel-grey-dark);
}

.article-body p {
    margin-bottom: 25px;
}

.article-body h2,
.article-body h3 {
    color: var(--primary-orange);
    margin: 35px 0 20px;
}

.article-body ul {
    margin: 20px 0;
    padding-left: 30px;
}

.article-body li {
    margin-bottom: 10px;
}

.article-hashtags {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid var(--pastel-white-dark);
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.article-hashtags .hashtag {
    padding: 8px 16px;
    background: rgba(255, 140, 66, 0.1);
    border-radius: 20px;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.article-hashtags .hashtag:hover {
    background: var(--primary-orange);
    color: white;
    transform: scale(1.05);
}

/* Related Articles */
.related-section {
    margin-top: 60px;
}

.related-section h2 {
    font-size: 2rem;
    color: var(--pastel-grey-dark);
    margin-bottom: 30px;
    text-align: center;
}

/* Loading Animation */
.loading-pulse {
    text-align: center;
    padding: 60px 20px;
}

.pulse-circle {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-orange), var(--primary-orange-light));
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }
}

/* Footer */
.footer {
    background: var(--pastel-grey-dark);
    color: white;
    text-align: center;
    padding: 30px 0;
    margin-top: 60px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        gap: 15px;
        font-size: 0.9rem;
    }
    
    .blog-header h1 {
        font-size: 2rem;
    }
    
    .blog-controls {
        flex-direction: column;
    }
    
    .search-box {
        max-width: 100%;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .article-content {
        padding: 30px 20px;
    }
    
    .article-title {
        font-size: 1.8rem;
    }
    
    .article-image {
        height: 250px;
    }
}

/* Error Message */
.error-message {
    text-align: center;
    padding: 60px 20px;
    background: white;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
}

.error-message h2 {
    color: var(--primary-orange);
    margin-bottom: 15px;
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* YouTube Video Section */
.blog-video-section { 
    margin: 32px 0; 
    padding: 24px; 
    background: #F5F5F7; 
    border-radius: 12px; 
}

.blog-video-section h3 { 
    font-size: 18px; 
    margin-bottom: 16px; 
    color: #1D1D1F; 
    display: flex;
    align-items: center;
    gap: 8px;
}

.youtube-embed { 
    position: relative; 
    padding-bottom: 56.25%; /* 16:9 */
    height: 0; 
    overflow: hidden; 
    border-radius: 12px; 
    background: #000; 
    margin-bottom: 16px; 
}

.youtube-embed iframe { 
    position: absolute; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
}

.video-meta { 
    background: #FFFFFF; 
    padding: 16px; 
    border-radius: 8px; 
}

.video-meta h4 { 
    font-size: 16px; 
    margin-bottom: 8px; 
    color: #1D1D1F; 
    line-height: 1.4;
}

.video-meta .channel { 
    color: #86868B; 
    font-size: 14px; 
    margin-bottom: 12px; 
    display: flex; 
    align-items: center; 
    gap: 6px; 
}

.video-meta .description { 
    color: #1D1D1F; 
    font-size: 14px; 
    line-height: 1.6; 
    max-height: 150px; 
    overflow-y: auto; 
    margin-bottom: 12px;
}

.video-meta .watch-link { 
    display: inline-block; 
    margin-top: 12px; 
    color: #FF9500; 
    text-decoration: none; 
    font-weight: 600; 
    font-size: 14px;
}

.video-meta .watch-link:hover { 
    text-decoration: underline; 
}

/* Video stats */
.video-stats {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #e0e0e0;
    font-size: 13px;
    color: #86868B;
}

.video-stat {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Mobile Responsive for Video Section */
@media (max-width: 768px) { 
    .blog-video-section { 
        padding: 16px; 
    }
    
    .video-meta .description { 
        max-height: 100px; 
    }
    
    .video-stats {
        flex-wrap: wrap;
    }
}