/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #5dade2;
    --secondary-color: #3498db;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --error-color: #e74c3c;
    --bg-color: #1a1a1a;
    --card-bg: #2d2d2d;
    --text-color: #e0e0e0;
    --text-muted: #999999;
    --border-color: #404040;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

/* Header */
header {
    text-align: center;
    padding: 2rem 0;
    background: linear-gradient(135deg, #1e3a5f, #2c5f8d);
    color: white;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

header .subtitle {
    font-size: 1rem;
    opacity: 0.9;
}

/* Main Content */
main {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Input Section */
.input-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.input-section label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

#dragon-code-input {
    width: 100%;
    padding: 1rem;
    font-size: 16px;
    font-family: 'Monaco', 'Courier New', monospace;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    resize: vertical;
    min-height: 100px;
    transition: border-color 0.3s;
    background-color: #1a1a1a;
    color: var(--text-color);
}

#dragon-code-input:focus {
    outline: none;
    border-color: var(--secondary-color);
}

#dragon-code-input::placeholder {
    color: #666;
}

.auto-update-note {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

.example-section {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.secondary-btn {
    padding: 0.75rem 1.5rem;
    font-size: 16px;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
    min-height: 44px;
}

.secondary-btn:hover {
    background-color: #2980b9;
}

.secondary-btn:active {
    transform: translateY(1px);
}

/* Output Section */
.output-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.welcome-message {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.welcome-message p {
    margin-bottom: 0.5rem;
}

.welcome-message .hint {
    font-style: italic;
    font-size: 0.9rem;
}

/* Category Sections */
.category-section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.category-section:last-child {
    border-bottom: none;
}

.category-section h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--secondary-color);
}

.category-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Trait Items */
.trait-item {
    padding: 0.75rem;
    background: #1a1a1a;
    border-radius: 4px;
    border-left: 4px solid var(--success-color);
}

.trait-item.warning {
    border-left-color: var(--warning-color);
    background: #3a2f1a;
}

.trait-item.error {
    border-left-color: var(--error-color);
    background: #3a1a1a;
}

.trait-label {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.trait-value {
    color: var(--text-color);
}

.trait-tag {
    display: inline-block;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
    color: #999;
    background: #404040;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    margin-top: 0.25rem;
}

/* Errors Section */
.errors-section {
    background: #3a1a1a;
    border: 2px solid var(--error-color);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
}

.errors-section h2 {
    color: var(--error-color);
    border-bottom-color: var(--error-color);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

footer a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s;
}

footer a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Responsive Design */
@media (min-width: 768px) {
    .container {
        padding: 2rem;
    }

    header h1 {
        font-size: 2.5rem;
    }

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

    .category-section h2 {
        font-size: 1.75rem;
    }

    .input-section,
    .output-section {
        padding: 2rem;
    }
}

@media (min-width: 1024px) {
    header h1 {
        font-size: 3rem;
    }

    .category-content {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 1rem;
    }
}