@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    --bg-color: #0b0a0f;
    --card-bg: rgba(20, 18, 30, 0.45);
    --card-border: rgba(255, 255, 255, 0.07);
    --card-border-hover: rgba(168, 85, 247, 0.4);
    
    --primary: #a855f7;
    --primary-glow: rgba(168, 85, 247, 0.2);
    --secondary: #14b8a6;
    --secondary-glow: rgba(20, 184, 166, 0.2);
    
    --text-primary: #f3f4f6;
    --text-muted: #9ca3af;
    --text-highlight: #ffffff;
    
    --gradient-primary: linear-gradient(135deg, #a855f7 0%, #d946ef 100%);
    --gradient-dark: linear-gradient(180deg, #12101e 0%, #0b0a0f 100%);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    
    --transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 10% 20%, rgba(168, 85, 247, 0.08) 0px, transparent 50%),
        radial-gradient(at 90% 80%, rgba(20, 184, 166, 0.08) 0px, transparent 50%);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Header & Navigation */
header {
    background: rgba(11, 10, 15, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: inline-block;
    position: relative;
    box-shadow: 0 0 15px var(--primary-glow);
}

.logo-icon::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 6px;
    right: 6px;
    bottom: 6px;
    background: var(--bg-color);
    border-radius: 50%;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.95rem;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

.btn-generate {
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid var(--primary);
    color: var(--text-primary);
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-family: var(--font-body);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-generate:hover {
    background: var(--gradient-primary);
    box-shadow: 0 0 20px var(--primary-glow);
    border-color: transparent;
    transform: translateY(-2px);
}

/* Main Container */
main {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 3rem 2rem;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeIn 0.8s ease-out;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.25rem;
    background: linear-gradient(to right, #ffffff, #a855f7, #14b8a6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.hero p {
    color: var(--text-muted);
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
    font-weight: 300;
}

/* Category Filters */
.filters-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
}

.filters {
    display: flex;
    gap: 0.75rem;
    background: rgba(20, 18, 30, 0.6);
    padding: 0.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--card-border);
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.6rem 1.5rem;
    border-radius: 10px;
    font-family: var(--font-body);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    text-transform: capitalize;
}

.filter-btn:hover {
    color: var(--text-primary);
}

.filter-btn.active {
    background: rgba(255, 255, 255, 0.08);
    color: var(--primary);
    box-shadow: inset 0 0 1px 1px rgba(168, 85, 247, 0.3);
}

/* Article Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
    animation: fadeInUp 0.8s ease-out;
}

.article-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
}

.article-card:hover {
    transform: translateY(-8px);
    border-color: var(--card-border-hover);
    box-shadow: 0 15px 30px rgba(168, 85, 247, 0.08);
}

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

.card-body {
    padding: 2.25rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.card-category {
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.25rem 0.75rem;
    border-radius: 30px;
    font-size: 0.75rem;
}

.category-tech {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.category-ai {
    background: rgba(168, 85, 247, 0.1);
    color: #a855f7;
}

.category-lifestyle {
    background: rgba(236, 72, 153, 0.1);
    color: #ec4899;
}

.category-finance {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.card-date {
    color: var(--text-muted);
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

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

.card-excerpt {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.75rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-link {
    color: var(--secondary);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.card-link span {
    transition: var(--transition);
}

.article-card:hover .card-link span {
    transform: translateX(4px);
}

.article-card:hover .card-link {
    color: var(--primary);
}

/* Card thumbnail image */
.card-thumbnail-link {
    display: block;
    text-decoration: none;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.card-thumbnail {
    width: 100%;
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
    transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.article-card:hover .card-thumbnail {
    transform: scale(1.05);
}

.card-category-overlay {
    position: absolute;
    top: 1rem;
    left: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.25rem 0.75rem;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 700;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

/* Empty State */
.empty-state {
    text-align: center;
    grid-column: 1 / -1;
    padding: 5rem 2rem;
    background: var(--card-bg);
    border: 1px dashed var(--card-border);
    border-radius: var(--radius-lg);
}

.empty-state h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.empty-state p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* Article Hero Image */
.article-hero-image {
    width: calc(100% + 4rem);
    margin-left: -2rem;
    height: 480px;
    background-size: cover;
    background-position: center;
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    margin-bottom: 2.5rem;
}

.article-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.25) 60%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2.5rem;
}

.article-title-on-image {
    font-size: 2.8rem;
    color: #ffffff !important;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
    margin-bottom: 0.75rem;
}

.article-meta-on-image {
    border-bottom: none;
    padding-bottom: 0;
    color: rgba(255, 255, 255, 0.75);
}

.article-header-no-image {
    margin-bottom: 1.5rem;
    padding-bottom: 0;
    border-bottom: none;
}

/* Article Page Layout */
.article-container {
    max-width: 800px;
    margin: 0 auto;
    animation: fadeIn 0.8s ease-out;
}

.btn-back {
    color: var(--text-muted);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    margin-bottom: 3rem;
    transition: var(--transition);
}

.btn-back:hover {
    color: var(--primary);
    transform: translateX(-4px);
}

.article-header {
    margin-bottom: 3.5rem;
}

.article-header .category-badge {
    display: inline-block;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1.5px;
    font-size: 0.8rem;
    padding: 0.35rem 1rem;
    border-radius: 30px;
    margin-bottom: 1.5rem;
}

.article-title {
    font-family: var(--font-heading);
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-highlight);
    letter-spacing: -0.5px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 2rem;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Article Content Typography */
.article-content {
    font-size: 1.15rem;
    line-height: 1.8;
    color: #e5e7eb;
}

.article-content p {
    margin-bottom: 1.8rem;
}

.article-content h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-top: 3.5rem;
    margin-bottom: 1.25rem;
    color: var(--text-highlight);
    letter-spacing: -0.5px;
}

.article-content h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-highlight);
}

.article-content ul, .article-content ol {
    margin-bottom: 1.8rem;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

.article-content blockquote {
    border-left: 4px solid var(--primary);
    padding: 1rem 1.5rem;
    margin: 2.5rem 0;
    background: rgba(168, 85, 247, 0.05);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--text-primary);
}

.article-content blockquote p {
    margin-bottom: 0;
}

.article-content pre {
    background: #12101e;
    border: 1px solid var(--card-border);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 2rem 0;
}

.article-content code {
    font-family: Consolas, Monaco, 'Andale Mono', monospace;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.06);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    color: var(--secondary);
}

.article-content pre code {
    background: transparent;
    padding: 0;
    color: #f3f4f6;
}

.article-content strong {
    color: var(--text-highlight);
    font-weight: 600;
}

/* Footer */
footer {
    border-top: 1px solid var(--card-border);
    padding: 3rem 2rem;
    background: rgba(11, 10, 15, 0.9);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: auto;
}

footer p {
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Custom Alert Notifications for manually generating */
.alert-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: rgba(20, 18, 30, 0.95);
    border: 1px solid var(--primary);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5), 0 0 15px var(--primary-glow);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 1rem;
    backdrop-filter: blur(10px);
    animation: slideInUp 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

@keyframes slideInUp {
    from {
        transform: translateY(100px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive styles */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    .article-title {
        font-size: 2.2rem;
    }
    .nav-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}