:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #1abc9c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --gray-color: #95a5a6;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --border-color: #ddd;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --radius: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--dark-color);
    line-height: 1.6;
    padding: 20px;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

header .subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    margin-bottom: 40px;
}

.input-section, .output-section {
    background-color: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.section-header {
    background-color: var(--secondary-color);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.section-header h2 {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.actions {
    display: flex;
    gap: 10px;
}

textarea {
    width: 100%;
    min-height: 300px;
    padding: 20px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    border: none;
    resize: vertical;
    background-color: #f8f9fa;
    border-bottom: 1px solid var(--border-color);
    line-height: 1.5;
}

textarea:focus {
    outline: none;
    background-color: white;
}

.char-count {
    padding: 10px 20px;
    text-align: right;
    font-size: 0.9rem;
    color: var(--gray-color);
    background-color: #f8f9fa;
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    padding: 20px;
    background-color: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    align-items: center;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: #229954;
    transform: translateY(-2px);
}

.btn-info {
    background-color: var(--info-color);
    color: white;
}

.btn-info:hover {
    background-color: #16a085;
    transform: translateY(-2px);
}

.btn-warning {
    background-color: var(--warning-color);
    color: white;
}

.btn-warning:hover {
    background-color: #d68910;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--gray-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
    transform: translateY(-2px);
}

.spacer {
    flex-grow: 1;
}

.format-options {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.format-options label {
    font-weight: 600;
}

.format-options select {
    padding: 8px 12px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: white;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 5px;
}

.checkbox input {
    width: 18px;
    height: 18px;
}

.result-container {
    position: relative;
    min-height: 300px;
}

.json-output {
    padding: 20px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    min-height: 300px;
    max-height: 500px;
    overflow-y: auto;
    background-color: #f8f9fa;
    border-radius: 0 0 var(--radius) var(--radius);
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Syntax Highlighting */
.json-output .string { color: #22863a; }
.json-output .number { color: #005cc5; }
.json-output .boolean { color: #d73a49; }
.json-output .null { color: #6f42c1; }
.json-output .key { color: #e36209; font-weight: bold; }

.error-panel {
    background-color: #fde8e8;
    border-left: 4px solid var(--danger-color);
    padding: 15px;
    margin: 10px;
    border-radius: 4px;
}

.error-panel h3 {
    color: var(--danger-color);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

#errorDetails {
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: #721c24;
}

.hidden {
    display: none;
}

.status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    border-radius: 20px;
    background-color: rgba(255, 255, 255, 0.1);
}

.status-icon {
    font-size: 1.2rem;
}

.status.valid {
    background-color: rgba(39, 174, 96, 0.2);
    color: #27ae60;
}

.status.invalid {
    background-color: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
}

.status.pending {
    background-color: rgba(52, 152, 219, 0.2);
    color: #3498db;
}

.output-stats {
    display: flex;
    justify-content: space-around;
    padding: 15px;
    background-color: #f8f9fa;
    border-top: 1px solid var(--border-color);
}

.stat {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.stat i {
    color: var(--primary-color);
}

.features {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.features h3 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.feature {
    text-align: center;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: var(--radius);
    transition: transform 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
}

.feature i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.feature h4 {
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.feature p {
    color: var(--gray-color);
    font-size: 0.95rem;
}

footer {
    text-align: center;
    padding: 20px;
    color: var(--gray-color);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
    margin-top: 20px;
}

.api-note {
    margin-top: 10px;
    font-style: italic;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 15px 25px;
    background-color: var(--success-color);
    color: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

.notification.error {
    background-color: var(--danger-color);
}

.notification.warning {
    background-color: var(--warning-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .format-options {
        justify-content: center;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    header h1 {
        font-size: 2rem;
    }
}


/* Additional styles for the modified layout */
.additional-info {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.additional-info h3 {
    margin-bottom: 20px;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-content {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: var(--radius);
}

.info-content ul {
    margin: 15px 0;
    padding-left: 20px;
}

.info-content li {
    margin-bottom: 8px;
}

.related-tools {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.related-tools h3 {
    margin-bottom: 25px;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.tool-card {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--dark-color);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.tool-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.tool-card h4 {
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.tool-card p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

/* Ensure main content doesn't hide under fixed header */
body {
    padding-top: 0;
}

.container {
    padding-top: 20px;
}

/* Adjust the main header spacing */
.main-header {
    margin-top: 20px;
}