/* GitHub-inspired Theme Variables */
:root {
    --gh-bg-primary: #ffffff;
    --gh-bg-secondary: #f6f8fa;
    --gh-border-primary: #d0d7de;
    --gh-border-secondary: #d8dee4;
    --gh-text-primary: #24292f;
    --gh-text-secondary: #57606a;
    --gh-text-tertiary: #6e7781;
    --gh-accent: #0969da;
    --gh-accent-hover: #0860ca;
    --gh-success: #1a7f37;
    --gh-warning: #9a6700;
    --gh-danger: #cf222e;
    --gh-shadow-sm: 0 1px 0 rgba(27, 31, 36, 0.04);
    --gh-shadow-md: 0 3px 6px rgba(140, 149, 159, 0.15);
    --gh-shadow-lg: 0 8px 24px rgba(140, 149, 159, 0.2);
}

body { 
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    background-color: var(--gh-bg-secondary);
    color: var(--gh-text-primary);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
code, pre, .font-mono { 
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
    font-size: 85%;
}

/* Smooth Fade In Animation */
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Custom Scrollbar - GitHub Style */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d0d7de; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #afb8c1; }

/* Sidebar Active State - GitHub Style */
.nav-item {
    color: var(--gh-text-secondary);
    border-radius: 6px;
    margin: 0 8px;
}

.nav-item:hover {
    background-color: var(--gh-bg-secondary);
}

.nav-item.active {
    background-color: var(--gh-bg-secondary);
    color: var(--gh-text-primary);
    font-weight: 600;
}

.nav-item.active svg { 
    color: var(--gh-text-primary); 
}

.nav-item svg {
    width: 16px;
    height: 16px;
    color: var(--gh-text-tertiary);
}

/* Code Block Styling */
.code-window {
    background: #1e293b;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.code-window:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 12px -2px rgba(0, 0, 0, 0.15);
}
.code-header {
    background: #0f172a;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.dot { width: 0.75rem; height: 0.75rem; border-radius: 50%; }

/* Enhanced Card Hover Effects */
.card-hover {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -4px rgba(0, 0, 0, 0.1);
}

/* Badge Animations */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    transition: all 0.2s ease;
}
.badge:hover {
    transform: scale(1.05);
}

/* Command Block Copy Effect */
.command-block {
    position: relative;
    transition: all 0.2s ease;
}
.command-block:hover {
    background-color: #1e293b;
}

/* Step Number Animation */
.step-number {
    transition: all 0.3s ease;
}
.step-number:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* Table Row Hover */
.table-row-hover {
    transition: background-color 0.15s ease;
}

/* Pulse Animation for Important Items */
@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(37, 99, 235, 0); }
}
.pulse-glow {
    animation: pulse-glow 2s infinite;
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Smooth Transitions */
* {
    transition-property: color, background-color, border-color, transform, box-shadow;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
}

/* Responsive Design */
@media (max-width: 768px) {
    /* Mobile-specific styles */
    body {
        font-size: 13px;
    }
    
    /* Ensure content doesn't overflow on mobile */
    .tab-content {
        padding: 0 0.5rem;
    }
    
    /* Make tables scrollable on mobile */
    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    /* Adjust card padding on mobile */
    .card-hover {
        padding: 1rem;
    }
    
    /* Smaller text on mobile for better readability */
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    /* Stack grid items on mobile */
    .grid {
        grid-template-columns: 1fr !important;
    }
}

/* Sidebar mobile styles */
#sidebar {
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
    top: 56px; /* Below navbar on mobile (h-14 = 56px) */
    height: calc(100vh - 56px); /* Full height minus navbar */
}

@media (min-width: 768px) {
    #sidebar {
        top: 0; /* Full height on desktop */
        height: 100%; /* Full height on desktop */
    }
}

#sidebar.show {
    transform: translateX(0);
}

/* Mobile overlay */
#mobile-overlay {
    top: 56px; /* Below navbar on mobile */
    height: calc(100vh - 56px); /* Full height minus navbar */
}

@media (min-width: 768px) {
    #mobile-overlay {
        top: 0;
        height: 100vh;
    }
}

#mobile-overlay.show {
    display: block;
}

/* Responsive typography */
@media (max-width: 640px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.125rem; }
    
    .text-xl { font-size: 1rem; }
    .text-2xl { font-size: 1.25rem; }
    .text-3xl { font-size: 1.5rem; }
    .text-4xl { font-size: 2rem; }
}

/* Responsive spacing */
@media (max-width: 768px) {
    .space-y-10 > * + * { margin-top: 1.5rem; }
    .space-y-6 > * + * { margin-top: 1rem; }
    .space-y-4 > * + * { margin-top: 0.75rem; }
    .gap-8 { gap: 1.5rem; }
    .gap-6 { gap: 1rem; }
    .gap-4 { gap: 0.75rem; }
}

/* Responsive code blocks */
@media (max-width: 768px) {
    .code-window {
        font-size: 0.75rem;
    }
    
    .command-block {
        font-size: 0.75rem;
        padding: 0.75rem;
    }
}

/* Responsive tables */
@media (max-width: 768px) {
    table {
        font-size: 0.75rem;
    }
    
    table th,
    table td {
        padding: 0.5rem;
    }
}

/* Responsive buttons */
@media (max-width: 640px) {
    button {
        font-size: 0.875rem;
        padding: 0.5rem 0.75rem;
    }
}

/* Code Syntax Highlighting */
.code-keyword { color: #c792ea; }
.code-string { color: #c3e88d; }
.code-comment { color: #546e7a; }
.code-function { color: #82aaff; }
.code-variable { color: #f78c6c; }

/* Golden Rules Carousel Animation */
.golden-rules-container {
    position: relative;
    min-height: 48px;
    overflow: hidden;
}

.golden-rule-item {
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    transform: translateX(15px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    visibility: hidden;
}

.golden-rule-item.active {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
    visibility: visible;
}

.golden-rule-item.exit {
    opacity: 0;
    transform: translateX(-15px);
    visibility: hidden;
}

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

@keyframes fadeSlideOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(-20px);
    }
}

/* Command Category Tabs - GitHub Style */
.command-category-tab {
    transition: all 0.2s ease;
    border: 1px solid var(--gh-border-primary);
}

.command-category-tab.active {
    background-color: var(--gh-text-primary);
    color: white;
    border-color: var(--gh-text-primary);
    box-shadow: var(--gh-shadow-sm);
}

.command-card {
    transition: all 0.3s ease;
}

.command-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}