/* ========================================
   MODERATE CLIMATE BLOG DESIGN SYSTEM
   Clean, professional, and user-friendly
   ======================================== */

/* CSS Custom Properties - Moderate Design System */
:root {
    /* Primary Colors - Softer Green Theme */
    --primary-green: #2ecc71;
    --secondary-green: #27ae60;
    --accent-green: #66bb6a;
    --light-green: #a8e6a3;
    
    /* Neon/Climate Theme Colors */
    --neon-green: #00ff88;
    --neon-blue: #00d4ff;
    --neon-lime: #32ff7e;
    --neon-yellow: #ffd700;
    --eco-green: #00c851;
    
    /* Gradient Definitions */
    --primary-gradient: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    --neon-gradient: linear-gradient(135deg, var(--neon-green), var(--neon-blue));
    --eco-gradient: linear-gradient(135deg, var(--eco-green), var(--accent-green));
    
    /* Text Colors for Climate Theme */
    --light-text: #2c3e50;
    --light-text-secondary: #7f8c8d;
    --light-primary: #2c3e50;
    --white: #ffffff;
    
    /* Enhanced Shadows for Climate Theme */
    --shadow-glow-sm: 0 2px 8px rgba(0, 255, 136, 0.3);
    --shadow-glow-md: 0 4px 16px rgba(0, 255, 136, 0.4);
    --shadow-glow-lg: 0 8px 32px rgba(0, 255, 136, 0.5);
    
    /* Font Families */
    --font-display: 'Inter', sans-serif;
    
    /* Neutral Colors */
    --primary-dark: #2c3e50;
    --secondary-dark: #34495e;
    --light-gray: #ecf0f1;
    --medium-gray: #bdc3c7;
    --dark-gray: #7f8c8d;
    
    /* Text Colors */
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: #ffffff;
    --text-muted: #95a5a6;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-accent: #ecf0f1;
    
    /* Moderate Spacing System */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-secondary: 'Georgia', serif;
    
    /* Moderate Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.35s ease;
}

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

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

/* Links */
a {
    color: var(--primary-green);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--secondary-green);
    text-decoration: underline;
}

/* Navigation */
.moderate-nav {
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-base);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.nav-link:hover {
    background: var(--bg-accent);
    color: var(--primary-green);
}

/* Hero Section */
.moderate-hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
    color: var(--text-light);
    padding: var(--space-3xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.moderate-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-lg);
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    color: #ffffff;
    text-shadow: 0 3px 6px rgba(0, 0, 0, 0.7);
    line-height: 1.1;
    letter-spacing: -0.02em;
    filter: none;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    margin-bottom: var(--space-2xl);
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
    line-height: 1.5;
    font-weight: 500;
    filter: none;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Cards */
.moderate-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-xl);
    transition: var(--transition-base);
    border: 1px solid var(--light-gray);
}

.moderate-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.card-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.card-link {
    color: var(--primary-green);
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    transition: var(--transition-base);
}

.card-link:hover {
    color: var(--secondary-green);
    gap: var(--space-sm);
}

/* Buttons */
.btn-moderate {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--primary-green);
    color: var(--text-light);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    font-size: 1rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 2;
}

.btn-moderate:hover {
    background: var(--secondary-green);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    color: var(--text-light);
}

.btn-moderate-secondary {
    background: transparent;
    border: 2px solid var(--text-light);
    color: var(--text-light);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 2;
}

.btn-moderate-secondary:hover {
    background: var(--text-light);
    color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

/* Grid Layout */
.moderate-grid {
    display: grid;
    gap: var(--space-xl);
    padding: var(--space-xl);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Forms */
.moderate-form {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--light-gray);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.form-input {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.1);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: 2px solid var(--primary-green);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    cursor: pointer;
    position: relative;
    z-index: 1002;
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
    align-items: center;
}

.mobile-menu-toggle span {
    width: 20px;
    height: 2px;
    background: var(--primary-green);
    margin: 2px 0;
    transition: var(--transition-base);
    border-radius: 1px;
}

.mobile-menu-toggle:hover span {
    background: var(--secondary-green);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
    z-index: 1001;
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-content {
    padding: var(--space-2xl);
    padding-top: var(--space-3xl);
}

.mobile-nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-nav-menu li {
    margin-bottom: var(--space-lg);
}

.mobile-nav-link {
    color: var(--text-primary) !important;
    text-decoration: none;
    font-size: 1.125rem;
    font-weight: 600;
    display: block;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    background: rgba(46, 204, 113, 0.1);
    border: 1px solid rgba(46, 204, 113, 0.2);
}

.mobile-nav-link:hover {
    background: rgba(46, 204, 113, 0.2) !important;
    transform: translateX(5px);
    color: var(--primary-green) !important;
    border-color: var(--primary-green);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none !important;
    }
    
    .mobile-menu-toggle {
        display: flex !important;
    }
    
    .nav-container {
        padding: var(--space-md) var(--space-lg);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .moderate-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        padding: var(--space-lg);
    }
    
    .moderate-card {
        padding: var(--space-lg);
    }
    
    /* Ensure mobile menu is visible on small screens */
    .mobile-menu-toggle {
        position: relative;
        z-index: 1002;
    }
    
    .mobile-menu {
        z-index: 1001;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }

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

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Article Specific Styles */
.article-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: 1px solid var(--light-gray);
}

.article-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.article-image-wrapper {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.article-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-base);
}

.article-card:hover .article-image {
    transform: scale(1.02);
}

.article-content {
    padding: var(--space-lg);
}

.article-meta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.article-title {
    margin-bottom: var(--space-md);
}

.article-title a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.25rem;
    line-height: 1.3;
    transition: var(--transition-base);
}

.article-title a:hover {
    color: var(--primary-green);
}

.article-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.article-link {
    color: var(--primary-green);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    transition: var(--transition-base);
}

.article-link:hover {
    color: var(--secondary-green);
    gap: var(--space-sm);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.pagination a {
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-primary);
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-base);
}

.pagination a:hover {
    background: var(--primary-green);
    color: var(--text-light);
    border-color: var(--primary-green);
}

.pagination a.active {
    background: var(--primary-green);
    color: var(--text-light);
    border-color: var(--primary-green);
}
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