/* Federal Grants Database Styles - GitHub Pages Optimized WITH AUTHENTICATION */

/* CSS Custom Properties */
:root {
    --primary-color: #1f2937;
    --secondary-color: #6b7280;
    --accent-color: #3b82f6;
    --success-color: #059669;
    --warning-color: #d97706;
    --danger-color: #dc2626;
    --background-color: #ffffff;
    --surface-color: #f8fafc;
    --border-color: #e5e7eb;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --font-size-xs: 10px;
    --font-size-sm: 12px;
    --font-size-base: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    font-size: var(--font-size-base);
    min-height: 100vh;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==================== AUTHENTICATION STYLES ==================== */

/* Login Container */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--spacing-lg);
}

.login-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    max-width: 500px;
    width: 100%;
    overflow: hidden;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: var(--spacing-xl);
    text-align: center;
}

.login-header h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.login-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
    opacity: 0.95;
}

.login-description {
    font-size: var(--font-size-base);
    opacity: 0.85;
}

.login-content {
    padding: var(--spacing-xl);
}

.auth-requirement {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.lock-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.7;
}

.auth-requirement h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-2xl);
}

.auth-requirement p {
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
}

.login-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    justify-content: center;
}

.login-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    min-width: 120px;
    justify-content: center;
}

.login-btn.primary {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.login-btn.primary:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.login-btn.secondary {
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
}

.login-btn.secondary:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

.btn-icon {
    font-size: var(--font-size-lg);
}

.login-features {
    background: var(--surface-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

.login-features h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.login-features ul {
    list-style: none;
    padding: 0;
}

.login-features li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    line-height: var(--line-height-relaxed);
}

.login-footer {
    background: var(--surface-color);
    padding: var(--spacing-md);
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ==================== PROTECTED CONTENT STYLES ==================== */

/* Main Container */
.grants-db {
    background: var(--background-color);
    min-height: 100vh;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* Header with User Info */
.header {
    margin-bottom: var(--spacing-xl);
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.header-left {
    flex: 1;
}

.title {
    font-size: clamp(var(--font-size-2xl), 5vw, var(--font-size-3xl));
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    opacity: 0.95;
}

.description {
    font-size: var(--font-size-base);
    opacity: 0.9;
}

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

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--spacing-sm);
}

.user-greeting {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.user-email {
    font-weight: 600;
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-1px);
}

/* Loading States */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--surface-color);
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--danger-color);
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--border-radius);
    margin: var(--spacing-md) 0;
}

.retry-btn {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--danger-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: background-color 0.2s;
}

.retry-btn:hover {
    background: #b91c1c;
}

/* Controls Section */
.controls {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.search-group {
    margin-bottom: var(--spacing-md);
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-md) 40px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    background: white url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z'%3E%3C/path%3E%3C/svg%3E") no-repeat 12px center/16px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.help-text {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.filter-group label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.filter-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    background: white;
    min-width: 150px;
    transition: border-color 0.2s;
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

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

.download-btn,
.clear-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.download-btn {
    background: var(--success-color);
    color: white;
}

.download-btn:hover {
    background: #047857;
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.clear-btn {
    background: var(--text-secondary);
    color: white;
}

.clear-btn:hover {
    background: #4b5563;
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

/* Statistics */
.stats {
    text-align: center;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 500;
    box-shadow: var(--shadow);
}

/* Table Section */
.table-container {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table-wrapper {
    overflow-x: auto;
    max-height: 70vh;
}

.grants-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 1000px;
}

.grants-table th {
    background: var(--surface-color);
    padding: var(--spacing-md) var(--spacing-sm);
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
    cursor: pointer;
    user-select: none;
    position: sticky;
    top: 0;
    z-index: 10;
    transition: background-color 0.2s;
}

.grants-table th:hover {
    background: #f3f4f6;
}

.grants-table th:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: -2px;
}

.sort-indicator::after {
    content: '⇅';
    margin-left: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
}

.grants-table th[data-sort-direction="asc"] .sort-indicator::after {
    content: '↑';
    color: var(--accent-color);
}

.grants-table th[data-sort-direction="desc"] .sort-indicator::after {
    content: '↓';
    color: var(--accent-color);
}

.grants-table td {
    padding: var(--spacing-sm);
    border-bottom: 1px solid #f3f4f6;
    font-size: var(--font-size-sm);
    vertical-align: top;
    line-height: var(--line-height-tight);
}

.grants-table tr:hover {
    background: #f9fafb;
}

/* Table Cell Styles */
.grant-id {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-weight: 600;
    color: var(--accent-color);
    text-decoration: none;
    font-size: var(--font-size-xs);
    transition: color 0.2s;
}

.grant-id:hover {
    text-decoration: underline;
    color: #1d4ed8;
}

.grant-title {
    font-weight: 500;
    color: var(--text-primary);
    max-width: 250px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: help;
}

.agency-name {
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.status-badge,
.category-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 12px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    display: inline-block;
    line-height: 1;
}

.status-posted {
    background: #dcfce7;
    color: #166534;
}

.status-forecasted {
    background: #fef3c7;
    color: #92400e;
}

.status-closed {
    background: #fee2e2;
    color: #991b1b;
}

.status-default {
    background: #f3f4f6;
    color: #374151;
}

.category-badge {
    background: #dbeafe;
    color: #1d4ed8;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.currency {
    font-weight: 600;
    color: var(--success-color);
    text-align: right;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-size: var(--font-size-xs);
}

.date {
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    white-space: nowrap;
}

/* Pagination */
.pagination {
    margin-top: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--surface-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.pagination-info {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pagination-controls {
    display: flex;
    gap: var(--spacing-xs);
}

.pagination-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-color);
    background: white;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all 0.2s;
    min-width: 32px;
    text-align: center;
    color: var(--text-primary);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--surface-color);
    border-color: var(--text-secondary);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

/* Footer */
.footer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--text-secondary);
    background: var(--surface-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.footer a {
    color: var(--accent-color);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

.disclaimer {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

/* Responsive Design */
@media (max-width: 968px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .header-right {
        width: 100%;
    }
    
    .user-info {
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }
}

@media (max-width: 768px) {
    .grants-db {
        padding: var(--spacing-sm);
    }
    
    .login-container {
        padding: var(--spacing-md);
    }
    
    .login-card {
        margin: var(--spacing-md) 0;
    }
    
    .login-actions {
        flex-direction: column;
    }
    
    .header-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .controls {
        padding: var(--spacing-md);
    }
    
    .filter-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group > * {
        width: 100%;
    }
    
    .action-group {
        justify-content: center;
    }
    
    .grants-table th,
    .grants-table td {
        padding: var(--spacing-xs);
    }
    
    .grant-title {
        max-width: 150px;
    }
    
    .agency-name {
        max-width: 120px;
    }
    
    .pagination {
        flex-direction: column;
        text-align: center;
    }
    
    .pagination-controls {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: var(--font-size-2xl);
    }
    
    .subtitle {
        font-size: var(--font-size-lg);
    }
    
    .login-header h1 {
        font-size: var(--font-size-2xl);
    }
    
    .login-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .grants-table {
        min-width: 800px;
    }
    
    .pagination-btn {
        min-width: 28px;
        padding: var(--spacing-xs);
    }
}

/* Print Styles */
@media print {
    .login-container,
    .controls,
    .pagination,
    .footer {
        display: none;
    }
    
    .grants-table {
        font-size: 8px;
    }
    
    .table-wrapper {
        max-height: none;
        overflow: visible;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-secondary: #000000;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .spinner {
        animation: none;
        border: 3px solid var(--text-secondary);
    }
}