/* ===================================================
   PYTHON DOCS - BUBBLY & PLAYFUL DESIGN SYSTEM
   ===================================================
   Main CSS file for Python documentation pages
   Features: Animated gradients, glassmorphism, bubbles
   Author: Python Docs Team
   ================================================= */

/* ===== BASE STYLES ===== */
/* Reset default browser styles and set base typography */
html,
body {
    height: 100%;
    margin: 0;
    font-family: "Inter", "Comic Neue", Arial, sans-serif;
}

/* Main body with animated gradient background */
body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    animation: gradientShift 8s ease-in-out infinite alternate;
}

/* ===== ANIMATIONS ===== */
/* Background gradient animation - cycles through different color schemes */
@keyframes gradientShift {
    0% {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    }
    50% {
        background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    }
    100% {
        background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    }
}

/* ===== FLOATING BUBBLE EFFECTS ===== */
/* Creates subtle floating bubble effects in the background */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Multiple radial gradients create bubble-like effects */
    background-image:
        radial-gradient(
            circle at 20% 80%,
            rgba(120, 119, 198, 0.3) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 80% 20%,
            rgba(255, 119, 198, 0.3) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 40% 40%,
            rgba(120, 219, 255, 0.3) 0%,
            transparent 50%
        );
    z-index: -1;
    animation: float 6s ease-in-out infinite;
}

/* Floating animation for bubble effects */
@keyframes float {
    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-20px) rotate(1deg);
    }
    66% {
        transform: translateY(10px) rotate(-1deg);
    }
}

/* ===== MAIN CONTAINER ===== */
/* Glassmorphism container that holds all page content */
.installation-container {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95); /* Semi-transparent white */
    backdrop-filter: blur(20px); /* Glassmorphism blur effect */
    border-radius: 30px;
    padding: 40px;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.1),
        /* Main shadow */ 0 0 0 1px rgba(255, 255, 255, 0.2); /* Subtle border */
    position: relative;
    overflow: hidden;
}

/* Subtle rotating gradient overlay for extra visual interest */
.installation-container::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(
        from 0deg,
        transparent,
        rgba(120, 119, 198, 0.05),
        transparent
    );
    animation: spin 20s linear infinite;
    z-index: -1;
}

/* Slow rotation animation for the conic gradient */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ===== TYPOGRAPHY ===== */
/* Main page title with gradient text and bounce animation */
h1 {
    font-size: 3.5em;
    text-align: center;
    background: linear-gradient(45deg, #667eea, #764ba2, #f093fb);
    -webkit-background-clip: text; /* Webkit prefix for gradient text */
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 30px;
    font-weight: 800;
    text-transform: lowercase;
    letter-spacing: -2px;
    position: relative;
    animation: bounce 2s ease-in-out infinite;
}

/* Bounce animation for the main title */
@keyframes bounce {
    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Python snake emoji that wiggles next to the title */
h1::after {
    content: "🐍";
    position: absolute;
    right: -60px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.6em;
    animation: wiggle 1.5s ease-in-out infinite;
}

/* Wiggle animation for the snake emoji */
@keyframes wiggle {
    0%,
    100% {
        transform: translateY(-50%) rotate(-5deg);
    }
    50% {
        transform: translateY(-50%) rotate(5deg);
    }
}

/* Paragraph styling with card-like appearance */
p {
    font-size: 1.2em;
    color: #444;
    line-height: 1.8;
    margin: 25px 0;
    padding: 20px 25px;
    background: linear-gradient(135deg, #fff 0%, #f8f9ff 100%);
    border-radius: 20px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    border: 2px solid transparent;
    background-clip: padding-box;
    position: relative;
    transition: all 0.3s ease; /* Smooth hover transitions */
}

/* Emoji indicators for paragraphs - adds visual interest */
p::before {
    content: "💡"; /* Default lightbulb emoji */
    position: absolute;
    left: -15px;
    top: -10px;
    background: linear-gradient(135deg, #ffeaa7, #fab1a0);
    border-radius: 50%;
    padding: 8px;
    font-size: 0.9em;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Alternating emoji patterns for visual variety */
p:nth-child(even)::before {
    content: "✨"; /* Sparkles for even paragraphs */
    background: linear-gradient(135deg, #a29bfe, #6c5ce7);
}
p:nth-child(3n)::before {
    content: "🚀"; /* Rocket for every 3rd paragraph */
    background: linear-gradient(135deg, #fd79a8, #e84393);
}

/* Hover effect for paragraphs - lifts up with enhanced shadow */
p:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    background: linear-gradient(135deg, #fff 0%, #e8f4ff 100%);
}

/* ===== IMAGE STYLING ===== */
/* Responsive images with rounded corners and shadows */
img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    margin: 20px 0;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 3px solid rgba(255, 255, 255, 0.8);
}

/* Image hover effect - slight scale and rotation */
img:hover {
    transform: scale(1.05) rotate(1deg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* ===== CODE STYLING ===== */
/* Terminal-like styling for code blocks */
code {
    background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    color: #68d391; /* Green text like terminal */
    padding: 15px 25px;
    border-radius: 15px;
    font-family: "Fira Code", "Monaco", monospace; /* Monospace fonts */
    font-size: 1.1em;
    display: inline-block;
    margin: 15px 0;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    position: relative;
    border: 2px solid #4a5568;
    transition: all 0.3s ease;
}

/* Terminal prompt indicator */
code::before {
    content: "$ "; /* Dollar sign like terminal */
    color: #f56565; /* Red color */
    font-weight: bold;
}

/* Blinking cursor dot in code blocks */
code::after {
    content: "";
    position: absolute;
    top: 10px;
    right: 15px;
    width: 8px;
    height: 8px;
    background: #68d391;
    border-radius: 50%;
    animation: blink 1s infinite;
}

/* Blinking animation for cursor */
@keyframes blink {
    0%,
    50% {
        opacity: 1;
    }
    51%,
    100% {
        opacity: 0;
    }
}

/* Code block hover effect */
code:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
}

/* ===== STEP INDICATORS ===== */
/* Add margin to odd paragraphs for step numbers */
p:nth-child(odd) {
    position: relative;
    margin-left: 40px;
}

/* Numbered step indicators for odd paragraphs */
p:nth-child(odd)::after {
    content: counter(step-counter); /* CSS counter for automatic numbering */
    counter-increment: step-counter;
    position: absolute;
    left: -60px;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9em;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* Initialize the step counter */
body {
    counter-reset: step-counter;
}

/* ===== RESPONSIVE DESIGN ===== */
/* Tablet and mobile optimizations */
@media (max-width: 768px) {
    .installation-container {
        max-width: 95vw; /* Almost full width on mobile */
        padding: 20px;
        border-radius: 20px;
    }

    h1 {
        font-size: 2.5em; /* Smaller title on mobile */
    }

    h1::after {
        right: -40px; /* Adjust snake emoji position */
        font-size: 0.5em;
    }

    p {
        margin-left: 0; /* Remove left margin on mobile */
        font-size: 1.1em;
    }

    p:nth-child(odd)::after {
        display: none; /* Hide step numbers on mobile for cleaner look */
    }
}

/* ===== CONTAINER INTERACTIONS ===== */
/* Subtle lift effect when hovering over the main container */
.installation-container:hover {
    transform: translateY(-5px);
    box-shadow:
        0 30px 80px rgba(0, 0, 0, 0.15),
        0 0 0 1px rgba(255, 255, 255, 0.3);
}

/* ===== CUSTOM SCROLLBAR ===== */
/* Styled scrollbar to match the theme */
::-webkit-scrollbar {
    width: 10px;
}

/* Scrollbar track */
::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

/* Scrollbar handle */
::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 10px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

/* Scrollbar handle on hover */
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, #764ba2, #667eea);
}

/* ===== BACK BUTTON ===== */
/* Floating back button with glassmorphism effect */
.back-button {
    position: fixed; /* Always visible in top-left */
    top: 30px;
    left: 30px;
    z-index: 1000; /* Above all other content */
    text-decoration: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 25px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1em;
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px); /* Glassmorphism blur */
}

/* Arrow icon for back button */
.back-button::before {
    content: "←"; /* Left arrow character */
    font-size: 1.3em;
    font-weight: bold;
    transition: transform 0.3s ease;
}

/* Back button hover effect - lifts up and changes gradient */
.back-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

/* Arrow animation on hover */
.back-button:hover::before {
    transform: translateX(-5px);
    animation: bounce-left 0.6s ease-in-out;
}

/* Bounce animation for the back arrow */
@keyframes bounce-left {
    0%,
    100% {
        transform: translateX(-5px);
    }
    50% {
        transform: translateX(-8px);
    }
}

.back-button:active {
    transform: translateY(-1px) scale(1.02);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.5);
}

/* Mobile responsive back button - smaller size and position */
@media (max-width: 768px) {
    .back-button {
        top: 20px; /* Closer to top edge on mobile */
        left: 20px; /* Closer to left edge on mobile */
        padding: 12px 20px; /* Smaller padding */
        font-size: 1em; /* Smaller font size */
    }
}

/* ===== NEWSLETTER PAGE STYLES ===== */
/* Newsletter specific container - narrower than default */
.newsletter-container {
    max-width: 600px; /* Narrower for newsletter signup focus */
    text-align: center; /* Center all newsletter content */
}

/* Wrapper for newsletter iframe with glassmorphism styling */
.iframe-wrapper {
    position: relative;
    margin: 30px auto; /* Center with top/bottom spacing */
    padding: 20px;
    /* Semi-transparent gradient background */
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.9) 0%,
        rgba(248, 250, 255, 0.9) 100%
    );
    border-radius: 25px;
    /* Layered shadow effects */
    box-shadow:
        0 20px 40px rgba(102, 126, 234, 0.15),
        /* Main shadow */ 0 0 0 2px rgba(255, 255, 255, 0.3); /* Border highlight */
    transition: all 0.3s ease; /* Smooth hover transitions */
    overflow: hidden; /* Contain any overflow content */
}

/* Animated border glow effect for iframe wrapper */
.iframe-wrapper::before {
    content: "";
    position: absolute;
    top: -2px; /* Extend slightly beyond wrapper */
    left: -2px;
    right: -2px;
    bottom: -2px;
    /* Cycling gradient colors for border effect */
    background: linear-gradient(45deg, #667eea, #764ba2, #f093fb, #4facfe);
    border-radius: 25px;
    z-index: -1; /* Behind the main wrapper */
    animation: borderGlow 3s ease-in-out infinite alternate;
}

/* Border glow animation - pulses the border opacity */
@keyframes borderGlow {
    0% {
        opacity: 0.5; /* Dimmer state */
    }
    100% {
        opacity: 0.8; /* Brighter state */
    }
}

/* Iframe wrapper hover effect - lift and scale */
.iframe-wrapper:hover {
    transform: translateY(-5px) scale(1.02); /* Lift up and slightly enlarge */
    box-shadow:
        0 30px 60px rgba(102, 126, 234, 0.25),
        /* Enhanced shadow */ 0 0 0 3px rgba(255, 255, 255, 0.4); /* Stronger border highlight */
}

/* Newsletter iframe styling */
iframe {
    border-radius: 20px; /* Rounded corners */
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1); /* Subtle shadow */
    transition: all 0.3s ease; /* Smooth transitions */
    max-width: 100%; /* Responsive width */
}

/* Floating emoji decoration for newsletter iframe */
.iframe-wrapper::after {
    content: "📧✨💌📝"; /* Email-themed emojis */
    position: absolute;
    top: -15px; /* Float above the wrapper */
    right: -15px; /* Position at top-right */
    font-size: 1.2em;
    animation: floatEmoji 4s ease-in-out infinite; /* Gentle floating motion */
    background: linear-gradient(135deg, #ffeaa7, #fab1a0); /* Warm gradient */
    padding: 8px 12px;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Floating animation for emoji decoration */
@keyframes floatEmoji {
    0%,
    100% {
        transform: translateY(0px) rotate(-5deg); /* Start/end position with tilt */
    }
    50% {
        transform: translateY(-10px) rotate(5deg); /* Float up with opposite tilt */
    }
}

/* Mobile responsive styles for newsletter page */
@media (max-width: 768px) {
    .newsletter-container {
        max-width: 95vw; /* Almost full width on mobile */
        padding: 20px; /* Reduced padding */
    }

    .iframe-wrapper {
        padding: 15px; /* Smaller padding inside wrapper */
        margin: 20px auto; /* Reduced margins */
    }

    iframe {
        width: 100%; /* Full width on mobile */
        height: 700px; /* Adjusted height for mobile */
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    .installation-container {
        margin: 5px;
        padding: 15px;
        border-radius: 15px;
    }

    h1 {
        font-size: 2em;
        letter-spacing: -1px;
    }

    h1::after {
        right: -30px;
        font-size: 0.4em;
    }

    h2 {
        font-size: 1.2em;
        padding: 0.1em 0.5em;
    }

    p {
        font-size: 1em;
        margin: 15px 0;
        padding: 15px 20px;
    }

    code {
        font-size: 0.9em;
        padding: 10px 15px;
    }
}

/* ===== CODE INTERACTION BUTTONS ===== */
/* Container for code blocks with copy/run buttons */
.code-container {
    position: relative; /* For absolute positioning of buttons */
    display: inline-block;
    width: 100%; /* Full width */
}

/* Button group container - holds copy and run buttons */
.code-buttons {
    position: absolute; /* Float over code blocks */
    top: 10px; /* Position from top */
    right: 10px; /* Position from right */
    display: flex; /* Horizontal button layout */
    gap: 8px; /* Space between buttons */
    z-index: 10; /* Above code content */
}

/* Base styling for copy and run buttons */
.copy-button,
.run-button {
    background: linear-gradient(
        135deg,
        #667eea 0%,
        #764ba2 100%
    ); /* Blue gradient */
    color: white;
    border: none; /* Remove default button border */
    border-radius: 8px; /* Rounded corners */
    padding: 8px 12px; /* Internal spacing */
    font-size: 0.9em; /* Slightly smaller text */
    font-weight: 600; /* Semi-bold */
    cursor: pointer; /* Pointer cursor on hover */
    transition: all 0.3s ease; /* Smooth animations */
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3); /* Blue shadow */
    opacity: 0.8; /* Slightly transparent when idle */
    /* Accessibility improvements */
    min-width: 60px;
    white-space: nowrap;
    outline: none;
}

/* Focus states for accessibility */
.copy-button:focus,
.run-button:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Run button specific styling - green theme */
.run-button {
    background: linear-gradient(
        135deg,
        #00b894 0%,
        #00a085 100%
    ); /* Green gradient */
    box-shadow: 0 4px 12px rgba(0, 184, 148, 0.3); /* Green shadow */
}

/* General hover effect for both buttons */
.copy-button:hover,
.run-button:hover {
    opacity: 1; /* Full opacity on hover */
    transform: translateY(-2px); /* Lift up slightly */
}

/* Copy button specific hover effects */
.copy-button:hover {
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4); /* Enhanced blue shadow */
    background: linear-gradient(
        135deg,
        #764ba2 0%,
        #667eea 100%
    ); /* Reversed gradient */
}

/* Run button specific hover effects */
.run-button:hover {
    box-shadow: 0 6px 16px rgba(0, 184, 148, 0.4); /* Enhanced green shadow */
    background: linear-gradient(
        135deg,
        #00a085 0%,
        #00b894 100%
    ); /* Reversed gradient */
}

/* Active (clicked) state for both buttons */
.copy-button:active,
.run-button:active {
    transform: translateY(0); /* Return to original position when clicked */
}

/* Copy button active state shadow */
.copy-button:active {
    box-shadow: 0 3px 8px rgba(102, 126, 234, 0.5); /* Pressed shadow effect */
}

/* Run button active state shadow */
.run-button:active {
    box-shadow: 0 3px 8px rgba(0, 184, 148, 0.5); /* Pressed shadow effect */
}

/* Copy button success state - shows when text is copied */
.copy-button.copied {
    background: linear-gradient(
        135deg,
        #00b894 0%,
        #00a085 100%
    ); /* Green success color */
    animation: pulse 0.5s ease; /* Pulse animation for feedback */
}

/* Run button loading state - shows when code is executing */
.run-button.running {
    background: linear-gradient(
        135deg,
        #fdcb6e 0%,
        #e17055 100%
    ); /* Orange loading color */
    animation: pulse 0.5s ease infinite; /* Continuous pulse while running */
}

/* Pulse animation for button feedback states */
@keyframes pulse {
    0% {
        transform: scale(1); /* Normal size */
    }
    50% {
        transform: scale(1.1); /* Slightly larger */
    }
    100% {
        transform: scale(1); /* Back to normal */
    }
}

/* Make code elements relative positioned for button overlay */
pre {
    position: relative; /* Allows absolute positioning of buttons within */
}

code {
    position: relative; /* Allows absolute positioning of buttons within */
}

/* ===== CODE OUTPUT DISPLAY ===== */
/* Terminal-like output area for code execution results */
.code-output {
    margin-top: 15px; /* Space from code block */
    padding: 15px 20px; /* Internal spacing */
    background: linear-gradient(
        135deg,
        #2d3748 0%,
        #1a202c 100%
    ); /* Dark terminal colors */
    border-radius: 12px; /* Rounded corners */
    border: 2px solid #4a5568; /* Subtle border */
    font-family: "Fira Code", "Monaco", monospace; /* Monospace font */
    font-size: 1em;
    color: #68d391; /* Green terminal text */
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2); /* Depth shadow */
    white-space: pre-wrap; /* Preserve formatting */
    word-wrap: break-word; /* Handle long lines */
    overflow-x: auto; /* Handle very long lines */
    max-height: 300px; /* Prevent extremely long output */
    overflow-y: auto; /* Scroll if needed */
    display: none; /* Hidden by default */
    animation: slideDown 0.3s ease; /* Slide in animation */
    /* Better text selection */
    user-select: text;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
}

/* Show the output area when needed */
.code-output.show {
    display: block; /* Make visible when show class is added */
}

/* Error state styling for output area */
.code-output.error {
    color: #f56565; /* Red error text */
    border-color: #e53e3e; /* Red error border */
}

/* Slide down animation for output area appearance */
@keyframes slideDown {
    from {
        opacity: 0; /* Start invisible */
        transform: translateY(-10px); /* Start above final position */
    }
    to {
        opacity: 1; /* End fully visible */
        transform: translateY(0); /* End at final position */
    }
}

/* ===== LOADING SPINNER ===== */
/* Spinner animation for loading states */
.loading-spinner {
    display: inline-block;
    width: 12px; /* Small spinner size */
    height: 12px;
    border: 2px solid rgba(255, 255, 255, 0.3); /* Semi-transparent border */
    border-radius: 50%; /* Perfect circle */
    border-top-color: #fff; /* White spinning section */
    animation: spin 1s ease-in-out infinite; /* Continuous spin */
}

/* Spin animation for loading spinner */
@keyframes spin {
    to {
        transform: rotate(360deg); /* Full rotation */
    }
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */
/* Reduce motion for users with vestibular disorders */
@media (prefers-reduced-motion: reduce) {
    /* Disable animations for sensitive users */
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    /* Keep essential loading spinner but make it slower */
    .loading-spinner {
        animation-duration: 2s !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .installation-container {
        background: rgba(255, 255, 255, 1);
        border: 2px solid #000;
    }

    .code-output {
        background: #000;
        color: #fff;
        border: 2px solid #fff;
    }

    .copy-button,
    .run-button {
        background: #000;
        color: #fff;
        border: 2px solid #fff;
    }
}