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

/* CSS Variables for theme colors */
:root {
    /* Light theme (default) */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f8f9fa;
    --text-primary: #333333;
    --text-secondary: #555555;
    --text-muted: #7f8c8d;
    --border-color: #dddddd;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --accent-primary: #3498db;
    --accent-secondary: #2980b9;
    --accent-disabled: #bdc3c7;
    --code-bg: #2c3e50;
    --code-text: #ecf0f1;
    --code-inline-bg: #34495e;
    --code-inline-text: #e74c3c;
    --message-system-bg: #ecf0f1;
    --message-system-border: #95a5a6;
    --message-user-bg: #e8f5e8;
    --message-user-border: #27ae60;
    --message-assistant-bg: #e3f2fd;
    --message-assistant-border: #2196f3;
    --info-bg: #f8f9fa;
    --info-border: #3498db;
    --submission-bg: #f8f9fa;
    --submission-border: #e74c3c;
}

/* Dark theme */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3a3a3a;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --text-muted: #888888;
    --border-color: #404040;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --accent-primary: #4a9eff;
    --accent-secondary: #357abd;
    --accent-disabled: #666666;
    --code-bg: #1e1e1e;
    --code-text: #d4d4d4;
    --code-inline-bg: #404040;
    --code-inline-text: #ff6b6b;
    --message-system-bg: #3a3a3a;
    --message-system-border: #666666;
    --message-user-bg: #2d4a2d;
    --message-user-border: #4caf50;
    --message-assistant-bg: #2d3a4a;
    --message-assistant-border: #2196f3;
    --info-bg: #3a3a3a;
    --info-border: #4a9eff;
    --submission-bg: #3a3a3a;
    --submission-border: #ff6b6b;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.trajectory-viewer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    margin-bottom: 30px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 8px;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: var(--text-primary);
    font-size: 2.5em;
    font-weight: 300;
    margin: 0;
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 20px;
}

.theme-toggle:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: scale(1.05);
}

.theme-toggle:hover .theme-icon {
    transform: scale(1.1);
}

.theme-icon {
    transition: transform 0.3s ease;
}

/* Navigation Controls */
.navigation-controls {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px var(--shadow-color);
    margin-bottom: 20px;
}

.nav-row {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.nav-row:last-child {
    margin-bottom: 0;
}

.nav-button {
    padding: 10px 15px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
}

.nav-button:hover:not(:disabled) {
    background: var(--accent-secondary);
}

.nav-button:disabled {
    background: var(--accent-disabled);
    cursor: not-allowed;
}

.dropdown {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 14px;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Overview Block */
.overview-block {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px var(--shadow-color);
    margin-bottom: 20px;
}

.overview-block h2 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 1.5em;
}

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

.info-item {
    padding: 15px;
    background: var(--info-bg);
    border-radius: 5px;
    border-left: 4px solid var(--info-border);
}

.info-label {
    font-weight: bold;
    color: var(--text-primary);
    margin-bottom: 5px;
}

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

/* Submission Section */
.submission-section {
    margin-top: 20px;
    padding: 15px;
    background: var(--submission-bg);
    border-radius: 5px;
    border-left: 4px solid var(--submission-border);
}

.submission-section h3 {
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 1.2em;
}

.submission-content {
    white-space: pre-wrap;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
    background: var(--bg-secondary);
    padding: 10px;
    border-radius: 4px;
    max-height: 300px;
    overflow-y: auto;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

/* Messages Section */
.messages-section {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.messages-section h2 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.5em;
}

.message {
    margin-bottom: 20px;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-primary);
}

.message.system {
    background: var(--message-system-bg);
    border-left-color: var(--message-system-border);
}

.message.user {
    background: var(--message-user-bg);
    border-left-color: var(--message-user-border);
}

.message.assistant {
    background: var(--message-assistant-bg);
    border-left-color: var(--message-assistant-border);
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.message-role {
    font-weight: bold;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 1px;
}

.message-role.system { color: var(--message-system-border); }
.message-role.user { color: var(--message-user-border); }
.message-role.assistant { color: var(--message-assistant-border); }

.message-content {
    white-space: pre-wrap;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
    background: var(--bg-secondary);
    padding: 10px;
    border-radius: 4px;
    max-height: 400px;
    overflow-y: auto;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

/* Code blocks in messages */
.message-content pre {
    background: var(--code-bg);
    color: var(--code-text);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    margin: 10px 0;
    border: 1px solid var(--border-color);
}

.message-content code {
    background: var(--code-inline-bg);
    color: var(--code-inline-text);
    padding: 2px 4px;
    border-radius: 3px;
    font-size: 13px;
}

/* Loading indicator */
.loading-indicator {
    text-align: center;
    padding: 20px;
    font-style: italic;
    color: var(--text-muted);
}

/* Responsive design */
@media (max-width: 768px) {
    .trajectory-viewer {
        padding: 10px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .nav-row {
        flex-direction: column;
        gap: 10px;
    }
    
    .nav-button {
        width: 100%;
    }
    
    .overview-info {
        grid-template-columns: 1fr;
    }
    
    .header h1 {
        font-size: 2em;
    }
    
    .theme-toggle {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }
}