/**
 * 5th Social Bot Plugin Website - Dark Theme (Mastodon-inspired)
 * 
 * @package 5th-social-bot-website
 */

/* ============================================
   CSS Variables (Mastodon-inspired colors)
   ============================================ */
:root {
    /* Dark theme colors */
    --bg-primary: #1a1a1a;
    --bg-secondary: #282c37;
    --bg-tertiary: #313543;
    --bg-hover: #3a3f4b;
    --bg-card: #2b2b2b;
    
    /* Text colors */
    --text-primary: #d9e1e8;
    --text-secondary: #9baec8;
    --text-muted: #6d7a8a;
    --text-link: #6364ff;
    --text-link-hover: #4f50d4;
    
    /* Accent colors */
    --accent-primary: #6364ff;
    --accent-secondary: #8b5cf6;
    --accent-success: #00a32a;
    --accent-warning: #d98500;
    --accent-error: #d63638;
    
    /* Borders */
    --border-color: #3a3f4b;
    --border-radius: 8px;
    --border-radius-small: 4px;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-xxl: 32px;
    --line-height: 1.6;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.5);
    
    /* Transitions */
    --transition: all 0.2s ease;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

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

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

h1 {
    font-size: var(--font-size-xxl);
}

h2 {
    font-size: var(--font-size-xl);
}

h3 {
    font-size: var(--font-size-lg);
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--text-link);
    text-decoration: none;
    transition: var(--transition);
}

a:hover,
a:focus {
    color: var(--text-link-hover);
    text-decoration: underline;
}

/* Focus indicators for accessibility (WCAG 2.1 AA) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
.nav-link:focus-visible,
.btn:focus-visible,
.lang-link:focus-visible,
.mobile-menu-toggle:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(99, 100, 255, 0.3);
}

/* Remove outline for mouse users (but keep for keyboard) */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible),
input:focus:not(:focus-visible),
textarea:focus:not(:focus-visible),
select:focus:not(:focus-visible) {
    outline: none;
}

/* Skip link styling */
.skip-link:focus {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 999;
    padding: 1em;
    background: var(--accent-primary);
    color: white;
    text-decoration: none;
    outline: 2px solid white;
    outline-offset: 2px;
}

/* High contrast for better visibility */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #e0e0e0;
        --border-color: #666666;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

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

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   Header & Navigation
   ============================================ */
.site-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.site-logo:hover {
    text-decoration: none;
}

.site-logo svg {
    width: 32px;
    height: 32px;
    fill: var(--accent-primary);
}

/* Navigation */
.main-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 44px; /* Minimum touch target size for mobile */
    display: inline-flex;
    align-items: center;
    border-radius: var(--border-radius-small);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link:focus-visible {
    color: var(--text-primary);
    background-color: var(--bg-hover);
    text-decoration: none;
}

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

/* Language switcher */
.lang-switcher {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.lang-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    min-height: 44px; /* Minimum touch target size for mobile */
    min-width: 44px; /* Minimum touch target size for mobile */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-small);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.lang-link:hover,
.lang-link:focus-visible,
.lang-link.active {
    color: var(--text-primary);
    background-color: var(--bg-hover);
    text-decoration: none;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--spacing-sm);
    min-width: 44px; /* Minimum touch target size for mobile */
    min-height: 44px; /* Minimum touch target size for mobile */
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    padding: var(--spacing-xxl) 0 calc(var(--spacing-xxl) * 1.5) 0;
    text-align: center;
    margin-bottom: 0;
}

.automation-section {
    margin-top: 0;
    padding-top: calc(var(--spacing-xxl) * 1.5);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    min-height: 44px; /* Minimum touch target size for mobile */
    min-width: 44px; /* Minimum touch target size for mobile */
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: #ffffff;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: #ffffff;
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
    background-color: var(--bg-hover);
    text-decoration: none;
    color: var(--text-primary);
}

.btn-outline {
    background-color: transparent;
    color: var(--accent-primary);
    border: 2px solid var(--accent-primary);
}

.btn-outline:hover,
.btn-outline:focus-visible {
    background-color: var(--accent-primary);
    color: #ffffff;
    text-decoration: none;
}

/* ============================================
   Cards
   ============================================ */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.card-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.card-content {
    color: var(--text-secondary);
}

/* ============================================
   Features Grid
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.feature-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
    fill: var(--accent-primary);
}

.feature-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ============================================
   Stats Section
   ============================================ */
.stats-section {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xxl) 0;
    margin: var(--spacing-xxl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-lg);
}

.stat-value {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xxl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.footer-section a:hover {
    color: var(--text-link);
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* ============================================
   Automation Steps Cards
   ============================================ */
.automation-section .feature-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xl);
    min-height: 200px;
    justify-content: flex-start;
}

.automation-section .feature-icon {
    margin-bottom: var(--spacing-md);
    width: 56px;
    height: 56px;
    opacity: 0.9;
}

.automation-section .feature-title {
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: 0;
    text-align: center;
}

/* Info card for automation note */
.feature-card.info-card {
    background-color: var(--bg-tertiary);
    border-color: var(--accent-primary);
    border-width: 2px;
}

.feature-card.info-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-secondary);
        flex-direction: column;
        padding: var(--spacing-md);
        border-top: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
    }
    
    .main-nav.active {
        display: flex;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
}

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

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.section {
    padding: var(--spacing-xxl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}