/* ===============================================
   AREA 4: TYPOGRAPHY & CONTENT STYLING
   Kid-Friendly API Playground Typography System
   =============================================== */

/* ===============================================
   1. SIMPLIFIED TYPOGRAPHY SYSTEM
   =============================================== */

:root {
    /* Typography Scale - Clear hierarchy with 4-5 font sizes */
    --text-xs: 12px;
    --text-sm: 14px;
    --text-base: 16px;
    --text-lg: 18px;
    --text-xl: 24px;
    --text-2xl: 32px;
    --text-3xl: 48px;
    
    /* Font Families - Performance-first with readable fallbacks */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'SF Pro Display', system-ui, sans-serif;
    --font-headings: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'SF Pro Display', system-ui, sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', system-ui, sans-serif;
    --font-code: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Consolas', monospace;
    
    /* Playground Colors for Typography */
    --text-primary: #2D3748;
    --text-secondary: #4A5568;
    --text-muted: #718096;
    --text-bright: #1A202C;
    --text-playground: #E53E3E;
    --text-success: #38A169;
    --text-warning: #D69E2E;
    --text-info: #3182CE;
    
    /* Text Shadow Effects */
    --chalk-shadow: 2px 2px 4px rgba(255, 255, 255, 0.8), 
                    -1px -1px 2px rgba(0, 0, 0, 0.1);
    --playground-shadow: 3px 3px 6px rgba(0, 0, 0, 0.2);
    --fun-shadow: 2px 2px 0px #FF6B6B, 
                  4px 4px 0px #4ECDC4;
}

/* ===============================================
   2. HEADING STYLES WITH PLAYGROUND THEME
   =============================================== */

/* Main Title - Playground Sign Style */
.playground-title,
h1.playground-title {
    font-family: var(--font-headings);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 400;
    color: var(--text-playground);
    text-shadow: var(--chalk-shadow);
    transform: rotate(-1deg);
    display: inline-block;
    position: relative;
    margin: 0.5em 0;
    line-height: 1.1;
    letter-spacing: 0.02em;
}

.playground-title::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -15px;
    right: -15px;
    bottom: -10px;
    background: linear-gradient(135deg, 
        #FFE082 0%, 
        #FFCC02 50%, 
        #FFB300 100%);
    border-radius: 20px;
    z-index: -1;
    transform: rotate(1deg);
    box-shadow: 0 8px 24px rgba(255, 193, 7, 0.3);
}

.playground-title::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -10px;
    right: -10px;
    bottom: -5px;
    border: 3px solid var(--tree-brown, #8D6E63);
    border-radius: 15px;
    z-index: -1;
    transform: rotate(-0.5deg);
}

/* Section Headings - Playground Equipment Style */
.equipment-heading,
h2.equipment-heading {
    font-family: var(--font-headings);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 400;
    color: var(--text-bright);
    text-shadow: var(--playground-shadow);
    transform: rotate(-0.5deg);
    display: inline-block;
    margin: 1em 0 0.5em 0;
    position: relative;
}

.equipment-heading::before {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, 
        #FF6B6B 0%, 
        #4ECDC4 50%, 
        #45B7D1 100%);
    border-radius: 2px;
    transform: rotate(0.5deg);
}

/* Subsection Headings - Toy Box Style */
.toy-heading,
h3.toy-heading {
    font-family: var(--font-body);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 700;
    color: var(--text-secondary);
    margin: 0.8em 0 0.4em 0;
    position: relative;
    display: inline-block;
}

.toy-heading::before {
    content: '🧸';
    margin-right: 0.5em;
    font-size: 0.8em;
    animation: toyBounce 2s ease-in-out infinite;
}

@keyframes toyBounce {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-3px) rotate(5deg); }
}

/* Small Headings - Playground Signs */
.sign-heading,
h4.sign-heading {
    font-family: var(--font-body);
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 600;
    color: var(--text-secondary);
    margin: 0.6em 0 0.3em 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    display: inline-block;
}

.sign-heading::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 1px;
}

/* ===============================================
   3. BODY TEXT STYLES
   =============================================== */

/* Primary Body Text - Easy Reading */
.playground-text,
.body-text {
    font-family: var(--font-body);
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    margin: 0 0 1em 0;
}

/* Friendly Instructions */
.instruction-text {
    font-family: var(--font-body);
    font-size: clamp(0.9rem, 2vw, 1rem);
    font-weight: 500;
    line-height: 1.5;
    color: var(--text-secondary);
    background: linear-gradient(135deg, 
        rgba(255, 248, 220, 0.8) 0%, 
        rgba(255, 239, 213, 0.6) 100%);
    padding: 12px 16px;
    border-radius: 12px;
    border-left: 4px solid #FFB300;
    margin: 1em 0;
    position: relative;
}

.instruction-text::before {
    content: '💡';
    position: absolute;
    left: -12px;
    top: 50%;
    transform: translateY(-50%);
    background: #FFB300;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

/* Code Text - Rounded Monospace */
.code-text,
code {
    font-family: var(--font-code);
    font-size: clamp(0.85rem, 2vw, 0.95rem);
    font-weight: 500;
    background: linear-gradient(135deg, 
        rgba(248, 250, 252, 0.9) 0%, 
        rgba(241, 245, 249, 0.8) 100%);
    color: var(--text-bright);
    padding: 2px 6px;
    border-radius: 6px;
    border: 1px solid rgba(226, 232, 240, 0.6);
}

pre.code-block {
    font-family: var(--font-code);
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    font-weight: 400;
    background: linear-gradient(135deg, 
        rgba(248, 250, 252, 0.95) 0%, 
        rgba(241, 245, 249, 0.9) 100%);
    color: var(--text-bright);
    padding: 16px 20px;
    border-radius: 12px;
    border: 2px solid rgba(226, 232, 240, 0.4);
    overflow-x: auto;
    line-height: 1.5;
    margin: 1em 0;
    position: relative;
}

pre.code-block::before {
    content: '</>';
    position: absolute;
    top: 8px;
    right: 12px;
    font-size: 12px;
    color: var(--text-muted);
    opacity: 0.6;
}

/* ===============================================
   4. TEXT EFFECTS & ANIMATIONS
   =============================================== */

/* Chalk Text Effect */
.chalk-text {
    color: white;
    text-shadow: var(--chalk-shadow);
    background: linear-gradient(135deg, 
        #2D3748 0%, 
        #4A5568 100%);
    padding: 8px 16px;
    border-radius: 8px;
    display: inline-block;
    position: relative;
}

.chalk-text::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 1px, transparent 1px),
        radial-gradient(circle at 80% 70%, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 15px 15px, 20px 20px;
    border-radius: inherit;
    pointer-events: none;
}

/* Colorful Highlight Text */
.highlight-text {
    background: linear-gradient(135deg, 
        #FFE082 0%, 
        #FFCC02 50%, 
        #FFB300 100%);
    color: var(--text-bright);
    padding: 2px 8px;
    border-radius: 6px;
    font-weight: 600;
    display: inline-block;
    transform: rotate(-1deg);
    box-shadow: 0 2px 4px rgba(255, 193, 7, 0.3);
}

/* Bouncy Text Animation */
.bouncy-text {
    display: inline-block;
    animation: textBounce 2s ease-in-out infinite;
}

@keyframes textBounce {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-3px); }
}

/* Wobble Text on Hover */
.wobble-text {
    display: inline-block;
    transition: transform 0.3s ease;
}

.wobble-text:hover {
    animation: textWobble 0.6s ease-in-out;
}

@keyframes textWobble {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-2deg); }
    75% { transform: rotate(2deg); }
}

/* Rainbow Text Effect */
.rainbow-text {
    background: linear-gradient(45deg, 
        #FF6B6B 0%, 
        #4ECDC4 25%, 
        #45B7D1 50%, 
        #96CEB4 75%, 
        #FFEAA7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    animation: rainbowShift 3s ease-in-out infinite;
}

@keyframes rainbowShift {
    0%, 100% { filter: hue-rotate(0deg); }
    50% { filter: hue-rotate(180deg); }
}

/* ===============================================
   5. SPEECH BUBBLE STYLING
   =============================================== */

.speech-bubble {
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%, 
        rgba(248, 250, 252, 0.9) 100%);
    border: 3px solid #4ECDC4;
    border-radius: 20px;
    padding: 16px 20px;
    margin: 16px 0;
    position: relative;
    font-family: var(--font-body);
    font-size: clamp(0.9rem, 2vw, 1rem);
    color: var(--text-primary);
    box-shadow: 0 8px 24px rgba(78, 205, 196, 0.2);
}

.speech-bubble::before {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 30px;
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-top: 12px solid #4ECDC4;
}

.speech-bubble::after {
    content: '';
    position: absolute;
    bottom: -9px;
    left: 32px;
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid rgba(255, 255, 255, 0.95);
}

/* Character Speech Bubbles */
.character-speech {
    position: relative;
    padding-left: 60px;
}

.character-speech::before {
    content: '🤖';
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2em;
    background: linear-gradient(135deg, #4ECDC4 0%, #44A08D 100%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(78, 205, 196, 0.3);
}

/* ===============================================
   6. PLAYGROUND ICONOGRAPHY SYSTEM
   =============================================== */

/* API Method Icons as Playground Activities */
.method-icon {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    padding: 8px 12px;
    border-radius: 12px;
    font-size: 0.9rem;
}

.method-get {
    background: linear-gradient(135deg, #4ECDC4 0%, #44A08D 100%);
    color: white;
}

.method-get::before {
    content: '🧗‍♀️';
    font-size: 1.2em;
}

.method-post {
    background: linear-gradient(135deg, #FF6B6B 0%, #EE5A52 100%);
    color: white;
}

.method-post::before {
    content: '🛝';
    font-size: 1.2em;
}

.method-put {
    background: linear-gradient(135deg, #FFE082 0%, #FFB300 100%);
    color: var(--text-bright);
}

.method-put::before {
    content: '🔧';
    font-size: 1.2em;
}

.method-delete {
    background: linear-gradient(135deg, #A0AEC0 0%, #718096 100%);
    color: white;
}

.method-delete::before {
    content: '🗑️';
    font-size: 1.2em;
}

/* Status Indicators as Playground Signals */
.status-flag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
}

.status-success {
    background: linear-gradient(135deg, #C6F6D5 0%, #9AE6B4 100%);
    color: #22543D;
    border: 2px solid #68D391;
}

.status-success::before {
    content: '🟢';
    animation: flagWave 2s ease-in-out infinite;
}

.status-error {
    background: linear-gradient(135deg, #FED7D7 0%, #FCA5A5 100%);
    color: #742A2A;
    border: 2px solid #F56565;
}

.status-error::before {
    content: '🔴';
    animation: flagWave 2s ease-in-out infinite;
}

.status-warning {
    background: linear-gradient(135deg, #FEFCBF 0%, #FAF089 100%);
    color: #744210;
    border: 2px solid #ECC94B;
}

.status-warning::before {
    content: '🟡';
    animation: flagWave 2s ease-in-out infinite;
}

@keyframes flagWave {
    0%, 100% { transform: rotate(0deg) scale(1); }
    25% { transform: rotate(-5deg) scale(1.1); }
    75% { transform: rotate(5deg) scale(1.1); }
}

/* User Avatar Characters */
.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5em;
    position: relative;
    overflow: hidden;
}

.user-avatar.playground-kid-1 {
    background: linear-gradient(135deg, #FF6B6B 0%, #4ECDC4 100%);
}

.user-avatar.playground-kid-1::before {
    content: '👧';
}

.user-avatar.playground-kid-2 {
    background: linear-gradient(135deg, #4ECDC4 0%, #45B7D1 100%);
}

.user-avatar.playground-kid-2::before {
    content: '👦';
}

.user-avatar.playground-kid-3 {
    background: linear-gradient(135deg, #96CEB4 0%, #FFEAA7 100%);
}

.user-avatar.playground-kid-3::before {
    content: '🧒';
}

/* ===============================================
   7. KID-FRIENDLY MESSAGING SYSTEM
   =============================================== */

/* Error Messages - Friendly & Encouraging */
.friendly-error {
    background: linear-gradient(135deg, 
        rgba(254, 215, 215, 0.9) 0%, 
        rgba(252, 165, 165, 0.8) 100%);
    border: 2px solid #F56565;
    border-radius: 16px;
    padding: 16px 20px;
    margin: 16px 0;
    font-family: var(--font-body);
    color: #742A2A;
    position: relative;
}

.friendly-error::before {
    content: '😅';
    position: absolute;
    left: -12px;
    top: -12px;
    background: #FED7D7;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    border: 2px solid #F56565;
}

.friendly-error .error-title {
    font-weight: 700;
    font-size: 1.1em;
    margin-bottom: 8px;
}

.friendly-error .error-suggestion {
    font-size: 0.9em;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(245, 101, 101, 0.3);
}

/* Success Messages - Celebratory */
.celebration-message {
    background: linear-gradient(135deg, 
        rgba(198, 246, 213, 0.9) 0%, 
        rgba(154, 230, 180, 0.8) 100%);
    border: 2px solid #68D391;
    border-radius: 16px;
    padding: 16px 20px;
    margin: 16px 0;
    font-family: var(--font-body);
    color: #22543D;
    position: relative;
    overflow: hidden;
}

.celebration-message::before {
    content: '🎉';
    position: absolute;
    left: -12px;
    top: -12px;
    background: #C6F6D5;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    border: 2px solid #68D391;
    animation: celebrationBounce 1s ease-in-out infinite;
}

@keyframes celebrationBounce {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(10deg); }
}

/* Loading Messages - Fun & Engaging */
.fun-loading {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-body);
    font-weight: 600;
    color: var(--text-secondary);
    padding: 12px 16px;
    background: linear-gradient(135deg, 
        rgba(241, 245, 249, 0.9) 0%, 
        rgba(248, 250, 252, 0.8) 100%);
    border-radius: 12px;
    border: 2px solid rgba(226, 232, 240, 0.6);
}

.fun-loading::before {
    content: '🎠';
    font-size: 1.5em;
    animation: loadingCarousel 2s linear infinite;
}

@keyframes loadingCarousel {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fun-loading-messages {
    animation: loadingTextCycle 3s ease-in-out infinite;
}

/* Playground Metaphor Explanations */
.playground-metaphor {
    background: linear-gradient(135deg, 
        rgba(255, 248, 220, 0.9) 0%, 
        rgba(255, 239, 213, 0.8) 100%);
    border: 2px solid #FFB300;
    border-radius: 16px;
    padding: 16px 20px;
    margin: 16px 0;
    font-family: var(--font-body);
    color: var(--text-bright);
    position: relative;
}

.playground-metaphor::before {
    content: '🏰';
    position: absolute;
    left: -12px;
    top: -12px;
    background: #FFEAA7;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    border: 2px solid #FFB300;
}

.playground-metaphor .metaphor-title {
    font-weight: 700;
    font-size: 1.1em;
    margin-bottom: 8px;
    color: #744210;
}

.playground-metaphor .metaphor-explanation {
    font-size: 0.95em;
    line-height: 1.5;
}

/* ===============================================
   8. ACCESSIBILITY ENHANCEMENTS
   =============================================== */

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #000000;
        --text-secondary: #333333;
        --text-muted: #666666;
    }
    
    .chalk-text {
        background: #000000;
        color: #FFFFFF;
        border: 2px solid #FFFFFF;
    }
    
    .highlight-text {
        background: #FFFF00;
        color: #000000;
        border: 2px solid #000000;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .bouncy-text,
    .wobble-text:hover,
    .celebration-message::before,
    .fun-loading::before,
    .status-success::before,
    .status-error::before,
    .status-warning::before,
    .toy-heading::before {
        animation: none;
    }
    
    .playground-title,
    .equipment-heading {
        transform: none;
    }
}

/* Focus Indicators for Keyboard Navigation */
.playground-title:focus,
.equipment-heading:focus,
.toy-heading:focus,
.sign-heading:focus {
    outline: 3px solid #4ECDC4;
    outline-offset: 4px;
    border-radius: 4px;
}

/* ===============================================
   9. RESPONSIVE TYPOGRAPHY
   =============================================== */

@media (max-width: 768px) {
    .playground-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .equipment-heading {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }
    
    .speech-bubble {
        padding: 12px 16px;
        border-radius: 16px;
    }
    
    .character-speech {
        padding-left: 50px;
    }
    
    .character-speech::before {
        width: 32px;
        height: 32px;
        font-size: 1.5em;
    }
}

@media (max-width: 480px) {
    .playground-title {
        font-size: clamp(1.75rem, 10vw, 2.5rem);
        transform: rotate(0deg);
    }
    
    .equipment-heading {
        font-size: clamp(1.25rem, 8vw, 1.75rem);
        transform: rotate(0deg);
    }
    
    .method-icon,
    .status-flag {
        font-size: 0.8rem;
        padding: 6px 10px;
    }
    
    .user-avatar {
        width: 32px;
        height: 32px;
        font-size: 1.2em;
    }
}

/* ===============================================
   10. PRINT STYLES
   =============================================== */

@media print {
    .playground-title,
    .equipment-heading,
    .toy-heading,
    .sign-heading {
        color: #000000 !important;
        text-shadow: none !important;
        transform: none !important;
    }
    
    .playground-title::before,
    .playground-title::after,
    .equipment-heading::before {
        display: none !important;
    }
    
    .speech-bubble,
    .friendly-error,
    .celebration-message,
    .playground-metaphor {
        border: 2px solid #000000 !important;
        background: #FFFFFF !important;
        color: #000000 !important;
    }
}