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

:root {
    /* Black and White Color Scheme */
    --primary-color: #000000;
    --primary-light: #333333;
    --primary-dark: #000000;
    --secondary-color: #666666;
    --secondary-light: #888888;
    --accent-color: #000000;
    
    /* Grayscale Colors */
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header Styles */
.header {
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-lg) 0;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    width: 2rem;
    height: 2rem;
}

.nav {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: 2px solid var(--white);
    border-radius: var(--radius-lg);
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 0.875rem;
}

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

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

.nav-btn i {
    width: 1rem;
    height: 1rem;
}

/* Main Content */
.main {
    min-height: calc(100vh - 200px);
}

.tab-content {
    display: none;
    padding: var(--spacing-2xl) 0;
}

.tab-content.active {
    display: block;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-2xl) 0;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-2xl);
}

/* Hero Stats - Always 4 cards in a row, never single card */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.stat-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

/* Complete Portfolio Section */
.complete-portfolio {
    margin-bottom: var(--spacing-3xl);
}

.complete-portfolio h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.tier-section {
    margin-bottom: var(--spacing-2xl);
}

.tier-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--gray-200);
}

/* Companies Table */
.companies-table {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table-header {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 1.5fr;
    gap: var(--spacing-md);
    background: var(--gray-100);
    padding: var(--spacing-md);
    font-weight: 600;
    color: var(--gray-900);
    border-bottom: 1px solid var(--gray-200);
}

.table-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 1.5fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
    transition: background-color 0.3s ease;
}

.table-row:hover {
    background: var(--gray-50);
}

.table-row:last-child {
    border-bottom: none;
}

.col-company {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.col-company strong {
    font-weight: 600;
    color: var(--gray-900);
}

.company-url {
    font-size: 0.75rem;
    color: var(--gray-500);
    font-family: var(--font-mono);
}

.col-sector {
    color: var(--gray-700);
    font-size: 0.875rem;
}

.col-arr {
    font-weight: 600;
    color: var(--gray-900);
    font-size: 0.875rem;
}

.col-status {
    display: flex;
    align-items: center;
}

/* Status Badges */
.status-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 500;
    text-align: center;
    border: 1px solid;
}

.status-badge.excellent {
    background: var(--gray-900);
    color: var(--white);
    border-color: var(--gray-900);
}

.status-badge.good {
    background: var(--gray-700);
    color: var(--white);
    border-color: var(--gray-700);
}

.status-badge.moderate {
    background: var(--gray-500);
    color: var(--white);
    border-color: var(--gray-500);
}

.status-badge.risky {
    background: var(--white);
    color: var(--gray-900);
    border-color: var(--gray-900);
}

/* Key Highlights */
.key-highlights {
    margin-bottom: var(--spacing-3xl);
}

.key-highlights h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

/* Highlights Grid - Always 4 cards in a row */
.highlights-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.highlight-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all 0.3s ease;
}

.highlight-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.highlight-icon {
    width: 3rem;
    height: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.highlight-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.highlight-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Bulk Exit Strategy Styles */
.strategy-header, .analysis-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-2xl) 0;
}

.strategy-header h1, .analysis-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.strategy-subtitle, .analysis-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
}

.value-proposition {
    margin-bottom: var(--spacing-3xl);
}

.value-prop-card {
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    text-align: center;
}

.value-prop-card h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.value-prop-desc {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.value-prop-details p {
    font-size: 1rem;
    line-height: 1.7;
    opacity: 0.85;
}

/* Bulk Companies Analysis */
.bulk-companies-analysis {
    margin-bottom: var(--spacing-3xl);
}

.bulk-companies-analysis h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.bulk-tier {
    margin-bottom: var(--spacing-2xl);
}

.bulk-tier h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--gray-200);
}

/* Bulk Companies Grid - Always 4 cards in a row */
.bulk-companies-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.bulk-company-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.bulk-company-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.bulk-company-card.premium {
    border-color: var(--gray-900);
    background: var(--gray-50);
}

.bulk-company-card.core {
    border-color: var(--gray-700);
}

.bulk-company-card.growth {
    border-color: var(--gray-500);
}

.bulk-company-card.challenging {
    border-color: var(--gray-300);
    background: var(--gray-50);
}

.company-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-200);
}

.company-header h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
}

.valuation {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    background: var(--gray-100);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
}

.company-details p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
    font-size: 0.875rem;
}

.company-details strong {
    color: var(--gray-900);
}

/* Target Buyers */
.target-buyers {
    margin-bottom: var(--spacing-3xl);
}

.target-buyers h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.buyers-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

/* Buyers Grid - Always 3 cards in a row for better fit */
.buyers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.buyer-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
}

.buyer-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.buyer-card.primary {
    border-color: var(--gray-900);
    background: var(--gray-50);
}

.buyer-card h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.buyer-details p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.buyer-details strong {
    color: var(--gray-900);
}

/* Strategic Buyers - Always 4 cards in a row */
.strategic-buyers {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.strategic-buyer {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--white);
    border: 1px solid var(--gray-200);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.strategic-buyer:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.buyer-icon {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--primary-color);
}

/* Individual Analysis Styles */
.company-rankings {
    margin-bottom: var(--spacing-3xl);
}

.company-rankings h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xl);
}

.companies-list-detailed {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

/* Companies Grid - Always 4 cards in a row */
.companies-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.company-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all 0.3s ease;
}

.company-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.company-card.top-tier {
    border-color: var(--gray-900);
}

.company-card.high-potential {
    border-color: var(--gray-700);
}

.company-card.challenging {
    border-color: var(--gray-400);
    background: var(--gray-50);
}

.company-card.high-risk {
    border-color: var(--gray-300);
    background: var(--gray-50);
}

.company-card .company-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 0;
}

.company-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.company-sector {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.company-score {
    text-align: center;
}

.score-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
}

.score-total {
    font-size: 1rem;
    color: var(--gray-500);
}

.company-details {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: var(--spacing-md);
    padding: var(--spacing-xs) 0;
}

.detail-label {
    font-weight: 500;
    color: var(--gray-700);
    min-width: 120px;
    flex-shrink: 0;
}

.detail-value {
    color: var(--gray-900);
    text-align: right;
    flex: 1;
}

.company-rationale {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

.company-rationale h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.company-rationale p {
    color: var(--gray-600);
    line-height: 1.6;
}

.company-summary {
    padding: var(--spacing-lg);
}

.company-summary p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.company-summary strong {
    color: var(--gray-900);
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-xl) 0;
    text-align: center;
    margin-top: var(--spacing-3xl);
}

/* Responsive Design - Maintain 4-card layout as much as possible */
@media (max-width: 1200px) {
    .hero-stats,
    .highlights-grid,
    .bulk-companies-grid,
    .strategic-buyers,
    .companies-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .buyers-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .hero-stats,
    .highlights-grid,
    .bulk-companies-grid,
    .companies-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .strategic-buyers {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .buyers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .nav {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .nav-btn {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    /* On mobile, use 2 cards per row to maintain balance */
    .hero-stats,
    .highlights-grid,
    .bulk-companies-grid,
    .strategic-buyers,
    .companies-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .buyers-grid {
        grid-template-columns: 1fr;
    }
    
    .table-header,
    .table-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }
    
    .table-header {
        display: none;
    }
    
    .table-row {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }
    
    .col-company,
    .col-sector,
    .col-arr,
    .col-status {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    .col-company::before {
        content: "Company:";
        font-weight: 600;
        color: var(--gray-700);
    }
    
    .col-sector::before {
        content: "Sector:";
        font-weight: 600;
        color: var(--gray-700);
    }
    
    .col-arr::before {
        content: "ARR:";
        font-weight: 600;
        color: var(--gray-700);
    }
    
    .col-status::before {
        content: "Status:";
        font-weight: 600;
        color: var(--gray-700);
    }
    
    .detail-row {
        flex-direction: column;
        gap: var(--spacing-xs);
        align-items: start;
    }
    
    .detail-label {
        min-width: auto;
    }
    
    .detail-value {
        text-align: left;
    }
    
    .company-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
    }
    
    /* On very small screens, use 1 card per row */
    .hero-stats,
    .highlights-grid,
    .bulk-companies-grid,
    .strategic-buyers,
    .companies-grid,
    .buyers-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: var(--spacing-lg);
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .strategy-header h1,
    .analysis-header h1 {
        font-size: 2rem;
    }
    
    .value-prop-card {
        padding: var(--spacing-lg);
    }
    
    .value-prop-card h2 {
        font-size: 1.5rem;
    }
}

/* Print Styles */
@media print {
    .header {
        position: static;
    }
    
    .nav {
        display: none;
    }
    
    .tab-content {
        display: block !important;
    }
    
    .company-card,
    .bulk-company-card,
    .buyer-card {
        break-inside: avoid;
        margin-bottom: var(--spacing-md);
    }
    
    .footer {
        margin-top: var(--spacing-lg);
    }
}

/* Focus and Accessibility */
button:focus,
.nav-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Smooth Transitions */
* {
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

/* Ensure no text overlap */
.company-details,
.company-summary,
.company-rationale,
.buyer-details,
.value-prop-details {
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

/* Ensure proper spacing between elements */
.company-card > *,
.bulk-company-card > *,
.buyer-card > * {
    margin-bottom: var(--spacing-sm);
}

.company-card > *:last-child,
.bulk-company-card > *:last-child,
.buyer-card > *:last-child {
    margin-bottom: 0;
}

/* Ensure cards have consistent heights in each row */
.hero-stats .stat-card,
.highlights-grid .highlight-card,
.bulk-companies-grid .bulk-company-card,
.buyers-grid .buyer-card,
.strategic-buyers .strategic-buyer,
.companies-grid .company-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Make card content fill available space */
.stat-card,
.highlight-card,
.bulk-company-card,
.buyer-card,
.company-card {
    display: flex;
    flex-direction: column;
}

.company-details,
.company-summary,
.buyer-details {
    flex-grow: 1;
}

/* Ensure strategic buyers have consistent height */
.strategic-buyer {
    min-height: 60px;
    align-items: center;
    justify-content: flex-start;
}