/* Import Clean, Modern Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Lora:wght@400;500;600;700&display=swap');

/* CSS Variables - Clean Design System */
:root {
    /* Colors - Simplified & Professional */
    --color-primary: hsl(220, 70%, 50%);
    --color-primary-light: hsl(220, 70%, 96%);
    --color-primary-dark: hsl(220, 70%, 40%);

    --color-bg: hsl(0, 0%, 98%);
    --color-surface: hsl(0, 0%, 100%);
    --color-border: hsl(0, 0%, 90%);

    --color-text: hsl(0, 0%, 10%);
    --color-text-secondary: hsl(0, 0%, 50%);
    --color-text-light: hsl(0, 0%, 65%);

    /* Spacing - More breathing room */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Lora', Georgia, serif;

    /* Shadows - Subtle */
    --shadow-sm: 0 1px 3px hsla(0, 0%, 0%, 0.05);
    --shadow-md: 0 2px 8px hsla(0, 0%, 0%, 0.08);
    --shadow-lg: 0 4px 16px hsla(0, 0%, 0%, 0.1);
    --shadow-hover: 0 8px 24px hsla(0, 0%, 0%, 0.12);
    --shadow-xl: 0 16px 32px hsla(0, 0%, 0%, 0.15);

    /* Border Radius - Subtle */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;

    /* Transitions - Smooth */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 300ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: hsla(0, 0%, 100%, 0.95);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    font-family: var(--font-heading);
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.site-suffix {
    font-size: 0.8em;
    color: var(--color-text-light);
    font-weight: 500;
}

.nav {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: color var(--transition-base);
    font-size: 0.95rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
}

/* Main Content */
.main {
    min-height: calc(100vh - 200px);
    padding: var(--spacing-xl) 0;
}

/* Hero Section - Minimal */
.hero {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 600;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-bottom: var(--spacing-sm);
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    background: var(--color-bg);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.tag:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.article-read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--color-primary);
    font-weight: 500;
    font-size: 0.875rem;
    transition: gap var(--transition-base);
}

.article-card:hover .article-read-more {
    gap: 0.625rem;
}

.article-read-more::after {
    content: '→';
    font-size: 1rem;
    transition: transform var(--transition-base);
}

.article-card:hover .article-read-more::after {
    transform: translateX(2px);
}

/* Article Content Page - Clean */
.article-content {
    max-width: 850px;
    margin: 0 auto;
    background: var(--color-surface);
    padding: var(--spacing-xl) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    line-height: 1.75;
}

/* Tags on Article Page */
.article-page-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.article-page-tags .tag {
    font-size: 0.875rem;
    padding: 0.375rem 0.75rem;
}

.article-content h1 {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    line-height: 1.25;
    color: var(--color-text);
    letter-spacing: -0.015em;
}

.article-content h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 600;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.article-content h3 {
    font-family: var(--font-heading);
    font-size: 1.375rem;
    font-weight: 600;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.article-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    font-size: 1.0625rem;
    line-height: 1.75;
}

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

.article-content em {
    font-style: italic;
}

.article-content ul,
.article-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

.article-content li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.article-content blockquote {
    border-left: 3px solid var(--color-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-md) 0;
    background: var(--color-bg);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--color-text-secondary);
}

.article-content hr {
    border: none;
    height: 1px;
    background: var(--color-border);
    margin: var(--spacing-xl) 0;
}

.article-content code {
    background: var(--color-bg);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
    font-size: 0.875em;
    color: var(--color-primary-dark);
}

.article-content pre {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border);
}

.article-content pre code {
    background: none;
    padding: 0;
}

/* Article Images - Clean */
.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--shadow-md);
    display: block;
    border: 1px solid var(--color-border);
}

.article-content img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* Image captions */
.article-content img[alt] {
    cursor: help;
}

/* Multiple images in a row */
.article-content p img {
    display: inline-block;
    margin: var(--spacing-sm);
    max-width: calc(50% - var(--spacing-md));
}

.article-content p img:only-child {
    display: block;
    max-width: 100%;
    margin: var(--spacing-lg) auto;
}

/* Loading State */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-secondary);
    font-size: 1rem;
}

/* Error State */
.error {
    text-align: center;
    padding: var(--spacing-xl);
    color: hsl(0, 70%, 50%);
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: var(--color-text-light);
    margin-top: var(--spacing-xl);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 1.875rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .articles-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .article-content {
        padding: var(--spacing-md);
    }

    .article-content h1 {
        font-size: 1.75rem;
    }

    .article-content h2 {
        font-size: 1.375rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* Subtle Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-card {
    animation: fadeIn 400ms ease-out;
}

.article-card:nth-child(1) {
    animation-delay: 0ms;
}

.article-card:nth-child(2) {
    animation-delay: 40ms;
}

.article-card:nth-child(3) {
    animation-delay: 80ms;
}

.article-card:nth-child(4) {
    animation-delay: 120ms;
}

.article-card:nth-child(5) {
    animation-delay: 160ms;
}

/* Share Buttons */
.share-section {
    max-width: 850px;
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    text-align: center;
}

.share-section h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.share-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    color: white;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.share-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

.share-btn:active {
    transform: translateY(-1px);
}

.share-btn i {
    font-size: 1.2rem;
}

.share-btn.facebook {
    background: linear-gradient(135deg, #1877F2 0%, #166fe5 100%);
}

.share-btn.reddit {
    background: linear-gradient(135deg, #FF4500 0%, #e03d00 100%);
}

.share-btn.twitter {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
}

.share-btn.instagram {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
}