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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #48bb78;
    --danger-color: #f56565;
    --warning-color: #ed8936;
    --background: #0f172a;
    --surface: #1e293b;
    --surface-light: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border: #334155;
    --shadow: rgba(0, 0, 0, 0.3);
}

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

.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: #1e293b;
    padding: 2rem;
    box-shadow: 0 4px 6px var(--shadow);
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

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

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.sidebar {
    width: 350px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.search-box {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

#searchInput {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: all 0.3s;
}

#searchInput:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.reports-list {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.report-group {
    margin-bottom: 1.5rem;
}

.report-group-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    letter-spacing: 0.05em;
}

.report-item {
    padding: 1rem;
    margin-bottom: 0.5rem;
    background: var(--surface-light);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.report-item:hover {
    background: var(--background);
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.report-item.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.report-ticker {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.report-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.report-type {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.content {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    background: var(--background);
}

.welcome {
    max-width: 900px;
    margin: 0 auto;
}

.welcome h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-card {
    background: var(--surface);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.report-view {
    max-width: 900px;
    margin: 0 auto;
}

.report-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border);
}

.report-title {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.report-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.report-files {
    margin-top: 2rem;
}

.file-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.file-tab {
    padding: 0.75rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.file-tab:hover {
    background: var(--surface-light);
    border-color: var(--primary-color);
}

.file-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.file-content {
    background: var(--surface);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border);
}

/* Markdown styling */
.markdown-content h1,
.markdown-content h2,
.markdown-content h3 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.markdown-content h1 {
    font-size: 2rem;
    border-bottom: 2px solid var(--border);
    padding-bottom: 0.5rem;
}

.markdown-content h2 {
    font-size: 1.5rem;
}

.markdown-content h3 {
    font-size: 1.25rem;
}

.markdown-content p {
    margin-bottom: 1rem;
}

.markdown-content ul,
.markdown-content ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.markdown-content li {
    margin-bottom: 0.5rem;
}

.markdown-content code {
    background: var(--background);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: 'Courier New', monospace;
}

.markdown-content pre {
    background: var(--background);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 1rem;
}

.markdown-content pre code {
    background: none;
    padding: 0;
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.markdown-content th,
.markdown-content td {
    padding: 0.75rem;
    border: 1px solid var(--border);
    text-align: left;
}

.markdown-content th {
    background: var(--surface-light);
    font-weight: 600;
}

.markdown-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin-left: 0;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.error {
    background: rgba(245, 101, 101, 0.1);
    border: 1px solid var(--danger-color);
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
    color: var(--danger-color);
}

/* Responsive design */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        max-height: 300px;
    }

    .main-content {
        flex-direction: column;
    }

    .stats {
        grid-template-columns: 1fr;
    }

    .report-item {
        padding: 0.75rem;
    }
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface);
}

::-webkit-scrollbar-thumb {
    background: var(--surface-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border);
}