/* Clean, Information-First Design */

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-overlay.active {
    display: flex;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #e5e5e5;
    border-top-color: #0066cc;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    color: #666;
    font-size: 0.9rem;
}

:root {
    --text: #1a1a1a;
    --text-secondary: #666;
    --text-muted: #999;
    --bg: #fff;
    --bg-subtle: #f7f7f7;
    --border: #e5e5e5;
    --accent: #0066cc;
    --accent-light: #e6f0ff;
    --mono: 'IBM Plex Mono', monospace;
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

.view {
    display: none;
}

.view.active {
    display: block;
}

/* ==========================================
   HOME VIEW
   ========================================== */

.page-header {
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 2rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    position: relative;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.header-actions {
    display: flex;
    align-items: center;
}

.about-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 0.4rem 0;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
}

.about-link:hover {
    color: var(--text);
    border-bottom-color: var(--text);
}

.search-container {
    position: relative;
    width: 280px;
    flex-shrink: 0;
}

.search-container input {
    width: 100%;
    padding: 0.6rem 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.9rem;
    background: var(--bg);
}

.search-container input:focus {
    outline: none;
    border-color: var(--accent);
}

.search-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 4px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    display: none;
    z-index: 100;
}

.search-dropdown.active {
    display: block;
}

.search-result {
    padding: 0.6rem 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.search-result:hover {
    background: var(--bg-subtle);
}

.search-result .ticker {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--accent);
}

/* Controls */
.controls {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
}

.filter-tabs {
    display: flex;
    gap: 0;
}

.tab {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    background: var(--bg);
    font-size: 0.85rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.tab:first-child {
    border-radius: 4px 0 0 4px;
}

.tab:last-child {
    border-radius: 0 4px 4px 0;
    margin-left: -1px;
}

.tab.active {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

select {
    padding: 0.5rem 2rem 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.85rem;
    background: var(--bg);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' fill='%23666' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.6rem center;
}

/* Company List */
.company-list {
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem 2rem 4rem;
}

.company-row {
    display: flex;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    gap: 1rem;
}

.company-row:hover {
    background: var(--bg-subtle);
    margin: 0 -1rem;
    padding: 1rem;
}

.company-name {
    flex: 1;
    font-weight: 500;
}

.company-ticker {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--accent);
    background: var(--accent-light);
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 2rem 0;
    flex-wrap: wrap;
}

.page-btn {
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.75rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.15s;
}

.page-btn:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
}

.page-btn.active {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.page-ellipsis {
    color: var(--text-muted);
    padding: 0 0.25rem;
}

.page-info {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-left: 1rem;
}

/* ==========================================
   ENTITY VIEW
   ========================================== */

.breadcrumb {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 2rem 1rem;
    text-align: center;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    display: inline-block;
    transition: all 0.15s;
}

.breadcrumb a:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-light);
}

.entity-article {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

.entity-header {
    margin-bottom: 2rem;
    text-align: center;
}

.entity-meta {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    justify-content: center;
}

.ticker {
    font-family: var(--mono);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    background: var(--accent-light);
    padding: 0.2rem 0.6rem;
    border-radius: 3px;
}

.type-badge {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
    background: var(--bg-subtle);
    padding: 0.25rem 0.6rem;
    border-radius: 3px;
}

.entity-header h1 {
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.entity-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-family: var(--mono);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.industries-section {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.industry-tag {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: var(--bg-subtle);
    padding: 0.25rem 0.6rem;
    border-radius: 3px;
    margin-right: 0.4rem;
    margin-bottom: 0.4rem;
}

/* Year Selector */
.year-selector {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.year-tab {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg);
    font-family: var(--mono);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.15s;
}

.year-tab:hover {
    border-color: var(--text-secondary);
}

.year-tab.active {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

.more-years {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Year Content */
.year-content {
    margin-bottom: 3rem;
}

.year-context {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-subtle);
    border-radius: 6px;
    border-left: 3px solid var(--accent);
}

.competitors-for-year {
    margin-bottom: 2rem;
}

.competitors-for-year h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.competitor-item {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
}

.competitor-item:hover {
    background: var(--bg-subtle);
    margin: 0 -1rem;
    padding: 1rem;
}

.competitor-item:last-child {
    border-bottom: none;
}

.competitor-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.competitor-name {
    font-weight: 500;
}

.competitor-public {
    font-size: 0.65rem;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-light);
    padding: 0.1rem 0.4rem;
    border-radius: 2px;
}

.competitor-notes {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.sources-section {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.sources-section h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.source-link {
    display: inline-block;
    font-size: 0.85rem;
    color: var(--accent);
    text-decoration: none;
    margin-right: 1rem;
    margin-bottom: 0.5rem;
}

.source-link:hover {
    text-decoration: underline;
}

/* Sections */
.section {
    margin-bottom: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.section h2 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.competitors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.5rem;
}

.competitor-chip {
    padding: 0.5rem 0.75rem;
    background: var(--bg-subtle);
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.competitor-chip:hover {
    background: var(--accent-light);
}

.competitor-chip .chip-ticker {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--accent);
}

.citations-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.citation-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-subtle);
    border-radius: 4px;
    cursor: pointer;
}

.citation-item:hover {
    background: var(--accent-light);
}

.citation-company {
    font-weight: 500;
}

.citation-years {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* No data state */
.no-data {
    color: var(--text-muted);
    font-style: italic;
}

/* Responsive */
@media (max-width: 768px) {
    .page-header {
        flex-direction: column;
        padding: 2rem 1.5rem 1.5rem;
    }

    .header-actions {
        position: absolute;
        top: 1rem;
        right: 1.5rem;
    }

    .search-container {
        width: 100%;
    }

    .controls {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        padding: 0 1.5rem 1rem;
    }

    .company-list,
    .entity-article {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    .entity-stats {
        gap: 2rem;
    }

    .entity-header h1 {
        font-size: 1.5rem;
    }

    /* Mobile pagination */
    .pagination {
        gap: 0.35rem;
        padding: 1.5rem 0;
    }

    .page-btn {
        min-width: 2.25rem;
        height: 2.25rem;
        padding: 0 0.5rem;
        font-size: 0.85rem;
    }

    .page-info {
        width: 100%;
        text-align: center;
        margin: 0.5rem 0 0 0;
    }
}