/* ===================================
   NEURAL ARC - RFP ANALYSIS DASHBOARD
   Modern, Professional Design System
   =================================== */

/* CSS Variables - Neural Arc Brand Colors */
:root {
    /* Primary Colors - Neural Arc Black & Accent */
    --color-primary: #000000;
    --color-primary-light: #1a1a1a;
    --color-primary-dark: #000000;
    
    /* Accent Colors - Modern Tech Palette */
    --color-accent: #0066FF;
    --color-accent-light: #3385FF;
    --color-accent-dark: #0052CC;
    
    /* Semantic Colors */
    --color-success: #00C853;
    --color-warning: #FFB300;
    --color-danger: #FF3D00;
    --color-info: #00B8D4;
    
    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-gray-50: #FAFAFA;
    --color-gray-100: #F5F5F5;
    --color-gray-200: #EEEEEE;
    --color-gray-300: #E0E0E0;
    --color-gray-400: #BDBDBD;
    --color-gray-500: #9E9E9E;
    --color-gray-600: #757575;
    --color-gray-700: #616161;
    --color-gray-800: #424242;
    --color-gray-900: #212121;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================================
   RESET & BASE STYLES
   =================================== */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-900);
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    min-height: 100vh;
}

/* ===================================
   LAYOUT COMPONENTS
   =================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ===================================
   HEADER
   =================================== */

.header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--space-xl) 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.header-content {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.logo-section {
    flex-shrink: 0;
}

.logo {
    height: 50px;
    width: auto;
    display: block;
}

.header-info {
    flex: 1;
}

.header-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
    letter-spacing: -0.02em;
}

.header-subtitle {
    font-size: 1rem;
    color: var(--color-gray-600);
    font-weight: 500;
}

/* ===================================
   STATS SECTION
   =================================== */

.stats-section {
    padding: var(--space-2xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.stat-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid var(--color-gray-200);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-accent);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-white);
    stroke-width: 2.5;
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===================================
   FILTERS SECTION
   =================================== */

.filters-section {
    padding: var(--space-xl) 0;
}

.filters-bar {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
    align-items: center;
    border: 1px solid var(--color-gray-200);
}

.search-box {
    flex: 1;
    min-width: 300px;
    position: relative;
    display: flex;
    align-items: center;
}

.search-box svg {
    position: absolute;
    left: var(--space-md);
    width: 20px;
    height: 20px;
    color: var(--color-gray-400);
    pointer-events: none;
}

.search-box input {
    width: 100%;
    padding: var(--space-md) var(--space-md) var(--space-md) 3rem;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-gray-900);
    transition: all var(--transition-base);
    background: var(--color-gray-50);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-accent);
    background: var(--color-white);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.filter-buttons {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-md) var(--space-lg);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    background: var(--color-white);
    color: var(--color-gray-700);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.filter-btn svg {
    width: 18px;
    height: 18px;
}

.filter-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(0, 102, 255, 0.05);
}

.filter-btn.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
}

/* ===================================
   TABLE SECTION
   =================================== */

.table-section {
    padding: var(--space-xl) 0 var(--space-3xl) 0;
}

.table-container {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--color-gray-200);
}

.rfp-table {
    width: 100%;
    border-collapse: collapse;
}

.rfp-table thead {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
}

.rfp-table th {
    padding: var(--space-lg) var(--space-md);
    text-align: left;
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.th-content {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    user-select: none;
}

.th-content svg {
    width: 16px;
    height: 16px;
    opacity: 0.6;
    transition: all var(--transition-fast);
}

.sortable:hover .th-content svg {
    opacity: 1;
}

.rfp-table tbody tr {
    border-bottom: 1px solid var(--color-gray-200);
    transition: all var(--transition-fast);
}

.rfp-table tbody tr:hover {
    background: var(--color-gray-50);
}

.rfp-table tbody tr:last-child {
    border-bottom: none;
}

.rfp-table td {
    padding: var(--space-lg) var(--space-md);
    font-size: 0.9375rem;
    color: var(--color-gray-800);
}

.project-name {
    font-weight: 600;
    color: var(--color-primary);
    max-width: 300px;
}

.filename {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--color-gray-600);
    max-width: 250px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Progress Bars */
.progress-cell {
    min-width: 150px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--color-gray-200);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: var(--space-xs);
}

.progress-fill {
    height: 100%;
    border-radius: 999px;
    transition: width var(--transition-slow);
}

.progress-fill.direct {
    background: linear-gradient(90deg, var(--color-success) 0%, #00E676 100%);
}

.progress-fill.custom {
    background: linear-gradient(90deg, var(--color-info) 0%, #18FFFF 100%);
}

.progress-fill.code {
    background: linear-gradient(90deg, var(--color-warning) 0%, #FFD740 100%);
}

.progress-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-gray-700);
}

/* Risk Badges */
.risk-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.risk-badge svg {
    width: 16px;
    height: 16px;
}

.risk-badge.low {
    background: rgba(0, 200, 83, 0.1);
    color: var(--color-success);
}

.risk-badge.medium {
    background: rgba(255, 179, 0, 0.1);
    color: var(--color-warning);
}

.risk-badge.high {
    background: rgba(255, 61, 0, 0.1);
    color: var(--color-danger);
}

/* ===================================
   FOOTER
   =================================== */

.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-xl) 0;
    margin-top: auto;
}

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

.footer-left,
.footer-right {
    font-size: 0.875rem;
    opacity: 0.9;
}

.footer strong {
    font-weight: 700;
    color: var(--color-accent-light);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 1024px) {
    .header-title {
        font-size: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    .rfp-table {
        min-width: 900px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: var(--space-lg);
    }
    
    .logo {
        height: 40px;
    }
    
    .header-title {
        font-size: 1.25rem;
    }
    
    .header-subtitle {
        font-size: 0.875rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: var(--space-lg);
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        min-width: 100%;
    }
    
    .filter-buttons {
        width: 100%;
        justify-content: center;
    }
    
    .filter-btn {
        flex: 1;
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .header {
        padding: var(--space-lg) 0;
    }
    
    .stats-section,
    .filters-section,
    .table-section {
        padding: var(--space-lg) 0;
    }
    
    .filter-buttons {
        flex-direction: column;
    }
    
    .filter-btn {
        width: 100%;
    }
}

/* ===================================
   ANIMATIONS
   =================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.rfp-table tbody tr {
    animation: fadeIn var(--transition-base) ease-out;
}

/* ===================================
   EXPANDABLE DETAILS
   =================================== */

.expand-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    color: var(--color-gray-600);
}

.expand-btn:hover {
    background: var(--color-gray-100);
    color: var(--color-accent);
}

.expand-btn svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-base);
}

.expand-btn.expanded svg {
    transform: rotate(180deg);
}

.detail-row {
    display: none;
    background: var(--color-gray-50);
}

.detail-row.show {
    display: table-row;
}

.detail-cell {
    padding: 0 !important;
}

.detail-content {
    padding: var(--space-xl);
    animation: fadeIn var(--transition-base) ease-out;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.detail-section {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    border: 1px solid var(--color-gray-200);
}

.detail-section-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.detail-section-title svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.detail-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.detail-list li {
    padding: var(--space-sm) 0;
    font-size: 0.875rem;
    color: var(--color-gray-700);
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.detail-list li::before {
    content: "✓";
    color: var(--color-success);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

.detail-list.customization li::before {
    content: "⚙";
    color: var(--color-info);
}

.detail-list.new-code li::before {
    content: "⚡";
    color: var(--color-warning);
}

.no-matches {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    font-style: italic;
    padding: var(--space-sm) 0;
}

/* ===================================
   PRINT STYLES
   =================================== */

@media print {
    body {
        background: white;
    }
    
    .header {
        position: static;
        box-shadow: none;
    }
    
    .filters-section,
    .footer {
        display: none;
    }
    
    .table-container {
        box-shadow: none;
        border: 1px solid var(--color-gray-300);
    }
    
    .rfp-table tbody tr:hover {
        background: transparent;
    }
    
    @page {
        margin: 0.5in;
        @top-center {
            content: "RFP Analysis Dashboard - Neural Arc";
        }
        @bottom-center {
            content: "Created by Helium";
        }
    }
}