/* CatCode Translator v4.0 - Minimal CSS Styling */
/* Clean, modern design with focus on usability */

/* Reset and base styles */
* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
}

body { 
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh; 
    color: #fff; 
    line-height: 1.6;
    font-size: 16px;
}

/* Main container */
.container { 
    max-width: 900px; 
    margin: 0 auto; 
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center; 
    margin-bottom: 30px;
    animation: fadeInDown 0.8s ease-out;
}

.title {
    font-size: 2.5em; 
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    flex-wrap: wrap;
}

.emoji {
    font-size: 1.2em;
    animation: bounce 2s infinite;
}

.subtitle {
    font-size: 1.2em;
    opacity: 0.9;
    font-weight: 300;
}

/* Translator section */
.translator { 
    background: rgba(255,255,255,0.1); 
    border-radius: 20px; 
    padding: 30px;
    backdrop-filter: blur(10px);
    margin-bottom: 30px;
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    animation: fadeIn 1s ease-out;
}

/* Input/Output sections */
.input-section, .output-section { 
    margin-bottom: 25px;
}

.input-label, .output-label { 
    display: block; 
    margin-bottom: 10px; 
    font-weight: 600;
    font-size: 1.1em;
    color: rgba(255,255,255,0.95);
}

.input-textarea, .output-textarea { 
    width: 100%; 
    padding: 15px; 
    border: none; 
    border-radius: 12px;
    background: rgba(255,255,255,0.9); 
    color: #333; 
    font-family: inherit;
    font-size: 16px;
    resize: vertical;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.input-textarea:focus, .output-textarea:focus {
    outline: none;
    background: rgba(255,255,255,1);
    border-color: #4CAF50;
    box-shadow: 0 0 0 3px rgba(76,175,80,0.2);
}

.output-textarea {
    background: rgba(240,240,240,0.9);
    cursor: default;
}

/* Controls */
.controls { 
    display: flex; 
    gap: 15px; 
    margin-bottom: 25px;
    align-items: center;
    flex-wrap: wrap;
}

.translate-btn {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white; 
    border: none; 
    padding: 14px 28px;
    border-radius: 12px; 
    cursor: pointer; 
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(76,175,80,0.3);
}

.translate-btn:hover { 
    background: linear-gradient(135deg, #45a049, #3d8b40);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76,175,80,0.4);
}

.translate-btn:active {
    transform: translateY(0);
}

.format-select { 
    padding: 14px; 
    border-radius: 12px; 
    border: 2px solid rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.9); 
    color: #333;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.format-select:focus {
    outline: none;
    border-color: #4CAF50;
    background: rgba(255,255,255,1);
}

.clear-btn {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
    padding: 14px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 50px;
}

.clear-btn:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

.btn-icon {
    font-size: 18px;
}

/* Error message */
.error-message { 
    background: linear-gradient(135deg, #ff6b6b, #ff5252); 
    color: white; 
    padding: 15px; 
    border-radius: 12px;
    margin-top: 15px;
    font-weight: 500;
    border-left: 4px solid #ff4444;
    animation: shake 0.5s ease-in-out;
}

/* Info panel */
.info-panel {
    background: rgba(255,255,255,0.15);
    border-radius: 12px;
    padding: 20px;
    margin-top: 20px;
    border: 1px solid rgba(255,255,255,0.2);
}

.info-panel h3 {
    margin-bottom: 15px;
    font-size: 1.2em;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
}

.info-label {
    font-weight: 600;
    color: rgba(255,255,255,0.9);
}

.info-value {
    font-weight: 700;
    color: #4CAF50;
}

.patterns-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pattern-item {
    background: rgba(76,175,80,0.2);
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.9em;
    border: 1px solid rgba(76,175,80,0.3);
}

/* Examples section */
.examples {
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 30px;
    border: 1px solid rgba(255,255,255,0.2);
    animation: fadeInUp 1s ease-out;
}

.examples h2 {
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.5em;
}

.example-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.example-btn {
    background: rgba(255,255,255,0.1);
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 12px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}

.example-btn:hover {
    background: rgba(255,255,255,0.2);
    border-color: #4CAF50;
    transform: translateY(-2px);
}

.example-catcode {
    font-size: 1.2em;
    font-weight: 600;
    color: #4CAF50;
    word-break: break-all;
}

.example-desc {
    font-size: 0.9em;
    opacity: 0.9;
    color: rgba(255,255,255,0.9);
}

/* Footer */
.footer { 
    text-align: center; 
    margin-top: auto;
    padding-top: 30px;
    opacity: 0.9;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.footer-link {
    color: #fff; 
    text-decoration: none; 
    padding: 8px 16px;
    border-radius: 8px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-link:hover {
    text-decoration: none;
    background: rgba(255,255,255,0.2);
    transform: translateY(-1px);
}

.footer-text {
    font-size: 0.9em;
    opacity: 0.8;
    margin: 0;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .title {
        font-size: 2em;
        flex-direction: column;
        gap: 10px;
    }
    
    .translator {
        padding: 20px;
    }
    
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .translate-btn, .format-select, .clear-btn {
        width: 100%;
        justify-content: center;
    }
    
    .example-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    
    .input-textarea, .output-textarea {
        font-size: 14px;
        padding: 12px;
    }
    
    .translator {
        padding: 15px;
    }
    
    .examples {
        padding: 20px;
    }
}

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

/* Focus styles for accessibility */
.translate-btn:focus,
.clear-btn:focus,
.format-select:focus,
.example-btn:focus {
    outline: 2px solid #4CAF50;
    outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: high) {
    body {
        background: #000;
        color: #fff;
    }
    
    .translator, .examples {
        background: #111;
        border-color: #fff;
    }
    
    .input-textarea, .output-textarea, .format-select {
        background: #fff;
        color: #000;
        border-color: #fff;
    }
}

/* Print styles */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
    
    .controls, .examples, .footer {
        display: none;
    }
    
    .translator {
        background: white;
        border: 1px solid black;
        box-shadow: none;
    }
    
    .input-textarea, .output-textarea {
        border: 1px solid black;
        background: white;
        color: black;
    }
}