/* ================================================
   ZMCOR Blog Theme System with Light/Dark Mode
   Professional styling with optimal readability
   ================================================ */

/* ===== Theme Variables ===== */
:root {
    /* Light Theme Colors (Default) */
    --blog-bg-primary: #ffffff;
    --blog-bg-secondary: #f8f9fa;
    --blog-bg-tertiary: #e9ecef;
    --blog-text-primary: #1a1a1a;
    --blog-text-secondary: #6c757d;
    --blog-text-light: #ffffff;
    --blog-border-color: #dee2e6;
    --blog-border-light: #e9ecef;
    --blog-shadow-light: rgba(0, 0, 0, 0.08);
    --blog-shadow-medium: rgba(0, 0, 0, 0.12);
    --blog-shadow-dark: rgba(0, 0, 0, 0.16);
    
    /* Brand Colors (consistent across themes) */
    --blog-primary: #1976D2;
    --blog-secondary: #388E3C;
    --blog-accent: #F57C00;
    --blog-success: #4CAF50;
    --blog-warning: #FF9800;
    --blog-error: #F44336;
    
    /* Theme-aware gradients */
    --blog-gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --blog-gradient-success: linear-gradient(135deg, #4CAF50, #45a049);
    --blog-gradient-stats: linear-gradient(135deg, #667eea, #764ba2);
    
    /* Interactive states */
    --blog-hover-bg: #f1f3f4;
    --blog-active-bg: #e8eaed;
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --blog-bg-primary: #121212;
    --blog-bg-secondary: #1e1e1e;
    --blog-bg-tertiary: #2d2d2d;
    --blog-text-primary: #e5e5e5;
    --blog-text-secondary: #b3b3b3;
    --blog-text-light: #ffffff;
    --blog-border-color: #404040;
    --blog-border-light: #333333;
    --blog-shadow-light: rgba(0, 0, 0, 0.3);
    --blog-shadow-medium: rgba(0, 0, 0, 0.4);
    --blog-shadow-dark: rgba(0, 0, 0, 0.5);
    
    /* Adjusted gradients for dark mode */
    --blog-gradient-primary: linear-gradient(135deg, #5a67d8 0%, #667eea 100%);
    --blog-gradient-success: linear-gradient(135deg, #38a169, #4CAF50);
    --blog-gradient-stats: linear-gradient(135deg, #5a67d8, #667eea);
    
    /* Interactive states for dark mode */
    --blog-hover-bg: #2a2a2a;
    --blog-active-bg: #363636;
}

/* ===== Theme Toggle Component ===== */
.theme-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    background: var(--blog-bg-secondary);
    border: 2px solid var(--blog-border-color);
    border-radius: 25px;
    padding: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 15px;
}

.theme-toggle:hover {
    border-color: var(--blog-primary);
    transform: scale(1.05);
}

.theme-toggle-slider {
    width: 48px;
    height: 24px;
    background: var(--blog-primary);
    border-radius: 20px;
    position: relative;
    transition: all 0.3s ease;
}

.theme-toggle-slider::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: var(--blog-bg-primary);
    border-radius: 50%;
    transition: all 0.3s ease;
}

[data-theme="dark"] .theme-toggle-slider::after {
    transform: translateX(24px);
}

.theme-toggle-icon {
    position: absolute;
    font-size: 14px;
    transition: all 0.3s ease;
}

.theme-toggle-icon.sun {
    left: 6px;
    opacity: 1;
}

.theme-toggle-icon.moon {
    right: 6px;
    opacity: 0.5;
}

[data-theme="dark"] .theme-toggle-icon.sun {
    opacity: 0.5;
}

[data-theme="dark"] .theme-toggle-icon.moon {
    opacity: 1;
}

/* ===== Blog Hero Sections ===== */
.blog-hero, .comparison-hero {
    background: var(--blog-gradient-primary);
    color: var(--blog-text-light);
    padding: 60px 20px;
    text-align: center;
    margin: -40px -20px 40px -20px;
    border-radius: 0 0 20px 20px;
}

.vs-badge, .hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9em;
    font-weight: 600;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

/* ===== Grid Layouts ===== */
.comparison-grid, .content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.pros-cons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 30px 0;
}

@media (max-width: 768px) {
    .comparison-grid, .pros-cons {
        grid-template-columns: 1fr;
    }
}

/* ===== Card Components ===== */
.crm-card, .content-card, .feature-card {
    background: var(--blog-bg-primary);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 30px var(--blog-shadow-light);
    border: 3px solid transparent;
    transition: all 0.3s ease;
}

.crm-card:hover, .content-card:hover, .feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--blog-shadow-medium);
}

.crm-card.zoho {
    border-color: var(--blog-success);
}

.crm-card.salesforce {
    border-color: var(--blog-primary);
}

.stat-card {
    background: var(--blog-gradient-stats);
    color: var(--blog-text-light);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 8px 25px var(--blog-shadow-light);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-3px) scale(1.02);
}

.stat-number {
    font-size: 2.5em;
    font-weight: bold;
    margin-bottom: 10px;
}

/* ===== Tables ===== */
.pricing-table, .comparison-table {
    background: var(--blog-bg-secondary);
    border-radius: 12px;
    padding: 30px;
    margin: 30px 0;
    overflow-x: auto;
    border: 1px solid var(--blog-border-light);
}

.pricing-table table, .comparison-table table {
    width: 100%;
    border-collapse: collapse;
}

.pricing-table th, .comparison-table th {
    background: var(--blog-primary);
    color: var(--blog-text-light);
    padding: 15px;
    text-align: left;
    border-radius: 8px 8px 0 0;
}

.pricing-table td, .comparison-table td {
    padding: 15px;
    border-bottom: 1px solid var(--blog-border-color);
    color: var(--blog-text-primary);
}

.pricing-table tr:last-child td {
    border-bottom: none;
}

/* ===== Special Components ===== */
.feature-comparison {
    background: var(--blog-bg-primary);
    border-radius: 12px;
    padding: 30px;
    margin: 30px 0;
    box-shadow: 0 5px 20px var(--blog-shadow-light);
    border: 1px solid var(--blog-border-light);
}

.verdict-box {
    background: var(--blog-gradient-success);
    color: var(--blog-text-light);
    padding: 40px;
    border-radius: 12px;
    margin: 40px 0;
    text-align: center;
    box-shadow: 0 10px 30px var(--blog-shadow-medium);
}

.cta-section {
    background: var(--blog-bg-secondary);
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    margin: 40px 0;
    border: 1px solid var(--blog-border-light);
}

.insight-box {
    background: var(--blog-bg-secondary);
    border-left: 4px solid var(--blog-primary);
    padding: 20px;
    margin: 20px 0;
    border-radius: 0 8px 8px 0;
    position: relative;
}

.insight-box h4 {
    color: var(--blog-primary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ===== Reference Links ===== */
.reference-links {
    background: var(--blog-bg-primary);
    border: 1px solid var(--blog-border-color);
    border-radius: 8px;
    padding: 20px;
    margin: 30px 0;
}

.reference-links h4 {
    margin-bottom: 15px;
    color: var(--blog-text-primary);
}

.reference-links ul {
    list-style: none;
    padding: 0;
}

.reference-links li {
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.reference-links li:before {
    content: "🔗";
    position: absolute;
    left: 0;
}

.reference-links a {
    color: var(--blog-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.reference-links a:hover {
    color: var(--blog-secondary);
    text-decoration: underline;
}

/* ===== Typography Enhancements ===== */
.post-section h2 {
    color: var(--blog-text-primary);
    border-bottom: 2px solid var(--blog-border-light);
    padding-bottom: 10px;
    margin-top: 40px;
    margin-bottom: 25px;
}

.post-section h3 {
    color: var(--blog-primary);
    margin-top: 30px;
    margin-bottom: 15px;
}

.post-section p {
    color: var(--blog-text-primary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.lead {
    font-size: 1.2em;
    font-weight: 400;
    color: var(--blog-text-secondary);
    line-height: 1.6;
}

/* ===== Pros/Cons Styling ===== */
.pros-cons h4 {
    color: var(--blog-success);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pros-cons.cons h4 {
    color: var(--blog-error);
}

.pros-cons ul {
    padding-left: 20px;
}

.pros-cons li {
    margin-bottom: 8px;
    color: var(--blog-text-primary);
}

/* ===== Feature Highlights ===== */
.feature-highlight {
    background: var(--blog-bg-tertiary);
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
    border-left: 4px solid var(--blog-primary);
}

.feature-highlight strong {
    color: var(--blog-primary);
}

/* ===== Smooth Transitions ===== */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* ===== Accessibility Enhancements ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states for accessibility */
.theme-toggle:focus,
.crm-card:focus,
.stat-card:focus {
    outline: 3px solid var(--blog-primary);
    outline-offset: 2px;
}

/* ===== Print Styles ===== */
@media print {
    .theme-toggle, .nav-menu {
        display: none !important;
    }
    
    .comparison-hero, .verdict-box {
        background: none !important;
        color: black !important;
        border: 1px solid #ccc;
    }
}