:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --primary-soft: #eff6ff;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #0ea5e9;
    --background-color: #f8fafc;
    --card-background: #ffffff;
    --card-bg: #ffffff;
    --card-header-bg: #f8fafc;
    --bg-secondary: #f1f5f9;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --hover-bg: #f1f5f9;
    --input-bg: #ffffff;
    --sidebar-width: 280px;
    
    /* Responsive Font Sizes using clamp() */
    /* Syntax: clamp(minimum, preferred, maximum) */
    --font-size-xs: clamp(0.625rem, 0.6rem + 0.2vw, 0.75rem);    /* 10px - 12px */
    --font-size-sm: clamp(0.75rem, 0.7rem + 0.3vw, 0.875rem);    /* 12px - 14px */
    --font-size-base: clamp(0.875rem, 0.8rem + 0.4vw, 1rem);     /* 14px - 16px */
    --font-size-md: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);       /* 16px - 18px */
    --font-size-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);      /* 18px - 20px */
    --font-size-xl: clamp(1.25rem, 1.1rem + 0.8vw, 1.5rem);      /* 20px - 24px */
    --font-size-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);          /* 24px - 32px */
    --font-size-3xl: clamp(1.875rem, 1.5rem + 1.5vw, 2.5rem);    /* 30px - 40px */
    --font-size-4xl: clamp(2.25rem, 1.8rem + 2vw, 3rem);         /* 36px - 48px */
    
    /* Responsive Spacing */
    --spacing-xs: clamp(0.25rem, 0.2rem + 0.2vw, 0.375rem);      /* 4px - 6px */
    --spacing-sm: clamp(0.5rem, 0.4rem + 0.3vw, 0.75rem);        /* 8px - 12px */
    --spacing-md: clamp(0.75rem, 0.6rem + 0.5vw, 1rem);          /* 12px - 16px */
    --spacing-lg: clamp(1rem, 0.8rem + 0.8vw, 1.5rem);           /* 16px - 24px */
    --spacing-xl: clamp(1.5rem, 1rem + 1.2vw, 2rem);             /* 24px - 32px */
    --spacing-2xl: clamp(2rem, 1.5rem + 1.5vw, 3rem);            /* 32px - 48px */
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: var(--font-size-base);
}

/* Layout */
.app-container {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    background: var(--card-background);
    border-right: 1px solid var(--border-color);
    padding: 2rem 0;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-header {
    padding: 0 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-nav {
    padding: 2rem 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-right: 3px solid transparent;
    transition: all 0.2s;
    position: relative;
}

.nav-item i {
    font-size: 1.2rem;
    width: 20px;
    text-align: center;
    margin-right: 0.75rem;
}

.nav-item span {
    flex: 1;
}

.nav-item:hover {
    background-color: var(--background-color);
    color: var(--text-primary);
}

.nav-item.active {
    background-color: #eff6ff;
    color: var(--primary-color);
    border-right-color: var(--primary-color);
}

/* Main Content */
.main-content {
    padding: 2rem;
    overflow-y: auto;
    background: var(--background-color);
    min-height: 100vh;
}

.page-header {
    margin-bottom: 2rem;
}

.page-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: var(--font-size-md);
}

/* Cards */
.card {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: 0.375rem;
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: var(--background-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: #f1f5f9;
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

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

/* Action Buttons for Tables */
.action-buttons {
    display: flex;
    gap: 0.25rem;
    align-items: center;
    flex-wrap: wrap;
    min-width: 0;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.375rem 0.5rem;
    border: none;
    border-radius: 0.375rem;
    font-size: var(--font-size-xs);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    white-space: nowrap;
    min-width: 0;
    flex-shrink: 0;
}

.action-btn-icon {
    width: 16px;
    height: 16px;
    background-color: currentColor;
    display: inline-block;
    mask-size: contain;
    mask-repeat: no-repeat;
    mask-position: center;
    -webkit-mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-position: center;
}

/* Apple-style CSS Icons */
.icon-details {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z'/%3E%3C/svg%3E");
}

.icon-view {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M15 12a3 3 0 11-6 0 3 3 0 016 0z'/%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M15 12a3 3 0 11-6 0 3 3 0 016 0z'/%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z'/%3E%3C/svg%3E");
}

.icon-search {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%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/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%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/svg%3E");
}

.icon-refresh {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15'/%3E%3C/svg%3E");
}

.icon-upload {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M7 16a4 4 0 01-.88-7.903A5 5 0 1115.9 6L16 6a5 5 0 011 9.9M15 13l-3-3m0 0l-3 3m3-3v12'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M7 16a4 4 0 01-.88-7.903A5 5 0 1115.9 6L16 6a5 5 0 011 9.9M15 13l-3-3m0 0l-3 3m3-3v12'/%3E%3C/svg%3E");
}



.icon-contracts {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10'/%3E%3C/svg%3E");
}

.icon-close {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M6 18L18 6M6 6l12 12'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M6 18L18 6M6 6l12 12'/%3E%3C/svg%3E");
}

.icon-signed {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z'/%3E%3C/svg%3E");
}

.icon-unsigned {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M10 14l2-2m0 0l2-2m-2 2l-2-2m2 2l2 2m7-2a9 9 0 11-18 0 9 9 0 0118 0z'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M10 14l2-2m0 0l2-2m-2 2l-2-2m2 2l2 2m7-2a9 9 0 11-18 0 9 9 0 0118 0z'/%3E%3C/svg%3E");
}

.icon-warning {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L3.34 16.5c-.77.833.192 2.5 1.732 2.5z'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L3.34 16.5c-.77.833.192 2.5 1.732 2.5z'/%3E%3C/svg%3E");
}

.icon-info {
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z'/%3E%3C/svg%3E");
}

.action-btn-text {
    font-size: var(--font-size-sm);
}

.action-btn-details {
    background-color: var(--background-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.action-btn-details:hover {
    background-color: #f8fafc;
    border-color: var(--text-secondary);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.action-btn-view {
    background-color: var(--primary-color);
    color: white;
    border: 1px solid var(--primary-color);
}

.action-btn-view:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

/* Responsive action buttons */
@media (max-width: 768px) {
    .action-buttons {
        flex-direction: column;
        gap: var(--spacing-xs);
        width: 100%;
    }
    
    .action-btn {
        width: 100%;
        justify-content: center;
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }
    
    .action-btn-text {
        font-size: var(--font-size-xs);
    }
}

/* Status Pills */
.status-pill {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 9999px;
    font-size: var(--font-size-xs);
    font-weight: 500;
}

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

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

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

.status-uploaded {
    background-color: #e0f2fe;
    color: #0c4a6e;
}

/* Tables */
.table-container {
    overflow-x: auto;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    max-width: 100%;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-background);
    min-width: 600px; /* Минимальная ширина таблицы */
}

.data-table th {
    background-color: var(--background-color);
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

.data-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-size-sm);
    vertical-align: top;
    word-wrap: break-word;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px; /* Максимальная ширина ячейки */
}

.data-table td .text-truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.data-table tr:hover {
    background-color: var(--background-color);
}

/* Специальные стили для колонок */
.data-table .actions-column {
    width: 120px;
    min-width: 120px;
    max-width: 120px;
    text-align: center;
}

.data-table .status-column {
    width: 100px;
    min-width: 100px;
    max-width: 100px;
}

.data-table .date-column {
    width: 120px;
    min-width: 120px;
    max-width: 120px;
    white-space: nowrap;
}

.data-table .filename-column {
    min-width: 200px;
    max-width: 300px;
}

.data-table .company-column {
    min-width: 150px;
    max-width: 250px;
}

/* Улучшение отображения длинного текста */
.data-table .long-text {
    max-width: 300px;
    word-break: break-word;
    white-space: normal;
}

.data-table .short-text {
    max-width: 100px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Специальные стили для статусов */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    font-size: var(--font-size-xs);
    font-weight: 500;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

/* Улучшение отображения ссылок в таблице */
.data-table a {
    color: var(--primary-color);
    text-decoration: none;
    word-break: break-all;
}

.data-table a:hover {
    text-decoration: underline;
}

/* Улучшение отображения чисел и дат */
.data-table .number-cell {
    text-align: right;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
}

.data-table .date-cell {
    white-space: nowrap;
    font-size: var(--font-size-xs);
}

/* Индикатор прокрутки для таблицы */
.table-container::-webkit-scrollbar {
    height: 8px;
}

.table-container::-webkit-scrollbar-track {
    background: var(--background-color);
    border-radius: 4px;
}

.table-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.table-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
    padding: 2rem;
}

.modal-content {
    background: var(--card-background);
    border-radius: 1rem;
    padding: 2.5rem;
    max-width: 1200px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 
        0 20px 25px -5px rgba(0, 0, 0, 0.1),
        0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--border-color);
    position: relative;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

.close-btn:hover {
    background-color: var(--background-color);
    color: var(--text-primary);
}

/* Modal Content Styling */
.modal-content .contract-field {
    margin-bottom: 1.5rem;
}

.modal-content .contract-field label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.modal-content .contract-field input,
.modal-content .contract-field select,
.modal-content .contract-field textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    background-color: var(--card-background);
}

.modal-content .contract-field input:focus,
.modal-content .contract-field select:focus,
.modal-content .contract-field textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Detail cards in modal */
.modal-content .detail-card {
    background: var(--background-color);
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
    transition: box-shadow 0.2s;
}

.modal-content .detail-card:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.modal-content .detail-card-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.modal-content .detail-card-value {
    font-size: 1rem;
    color: var(--text-primary);
    line-height: 1.5;
}

/* Clickable document links */
.document-link {
    color: var(--primary-color);
    text-decoration: none;
    cursor: pointer;
    transition: color 0.2s, opacity 0.2s;
}

.document-link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.document-link:active {
    opacity: 0.8;
}

/* Modal Layout for wider screens */
@media (min-width: 1024px) {
    .modal-content {
        padding: 3rem;
        max-width: 1400px;
    }
    
    .modal-details-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .modal-details-full {
        grid-column: 1 / -1;
    }
}

/* Utility Classes */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-md { font-size: var(--font-size-md); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }
.text-4xl { font-size: var(--font-size-4xl); }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-gray { color: var(--text-secondary); }
.text-primary { color: var(--text-primary); }

.spacing-xs { margin: var(--spacing-xs); }
.spacing-sm { margin: var(--spacing-sm); }
.spacing-md { margin: var(--spacing-md); }
.spacing-lg { margin: var(--spacing-lg); }
.spacing-xl { margin: var(--spacing-xl); }
.spacing-2xl { margin: var(--spacing-2xl); }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }
.p-2xl { padding: var(--spacing-2xl); }

.px-xs { padding-left: var(--spacing-xs); padding-right: var(--spacing-xs); }
.px-sm { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-md { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-lg { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }

.py-xs { padding-top: var(--spacing-xs); padding-bottom: var(--spacing-xs); }
.py-sm { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-lg { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }

.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.hidden { display: none; }
.block { display: block; }
.inline { display: inline; }
.flex { display: flex; }
.grid { display: grid; }

/* Responsive */
@media (max-width: 768px) {
    .app-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    /* Modal responsive */
    .modal-overlay {
        padding: 1rem;
    }
    
    .modal-content {
        max-width: 100%;
        width: 100%;
        padding: 1.5rem;
        max-height: 95vh;
    }
    
    .modal-details-grid {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }
    
    .modal-title {
        font-size: 1.25rem;
    }
    
    .detail-card {
        padding: 1rem !important;
    }
}

/* Login Page Styles */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
}

.login-card {
    background: var(--card-background);
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    padding: 3rem;
    width: 100%;
    max-width: 400px;
}

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

.login-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
}

.login-form {
    margin-bottom: 2rem;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s;
    background: var(--card-background);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input::placeholder {
    color: var(--text-secondary);
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.checkbox-input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 3px;
    margin-right: 0.5rem;
    position: relative;
    transition: all 0.2s;
}

.checkbox-input:checked + .checkbox-custom {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-input:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.btn-full {
    width: 100%;
    justify-content: center;
    margin-bottom: 1rem;
}

.btn-loading {
    display: flex;
    align-items: center;
    justify-content: center;
}

.loading-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 0.5rem;
}

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

.error-message {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    text-align: center;
}

.success-message {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    text-align: center;
}

.login-info {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.info-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    text-align: center;
}

.info-text code {
    background: var(--background-color);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-size: 0.8rem;
    color: var(--primary-color);
}

/* Header user info styles */
.header-user {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    min-width: 0;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    min-width: 0;
    flex: 1;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    text-transform: capitalize;
}

.user-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.logout-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-weight: 500;
    width: 36px;
    height: 36px;
    min-width: 36px;
}

.logout-btn:hover {
    background: var(--hover-bg);
    border-color: var(--text-secondary);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.admin-link {
    background: var(--primary-color);
    color: white;
    padding: 0.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    width: 36px;
    height: 36px;
    min-width: 36px;
}

.admin-link:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}



/* Login page specific layout */
.app-container.login-layout {
    grid-template-columns: 1fr;
}

.app-container.login-layout .sidebar {
    display: none;
}

.app-container.login-layout .main-content {
    padding: 0;
}

/* Enhanced Responsive Typography */

/* Extra large screens (1920px+) */
@media (min-width: 1920px) {
    :root {
        --font-size-xs: 0.8rem;
        --font-size-sm: 0.95rem;
        --font-size-base: 1.1rem;
        --font-size-md: 1.25rem;
        --font-size-lg: 1.4rem;
        --font-size-xl: 1.6rem;
        --font-size-2xl: 2.2rem;
        --font-size-3xl: 2.8rem;
        --font-size-4xl: 3.5rem;
    }
    
    .sidebar-width {
        --sidebar-width: 320px;
    }
    
    .main-content {
        padding: var(--spacing-2xl);
    }
}

/* Large tablets and small desktops (1024px - 1439px) */
@media (min-width: 1024px) and (max-width: 1439px) {
    :root {
        --spacing-xl: 1.25rem;
        --spacing-2xl: 2rem;
    }
    
    .page-header {
        margin-bottom: var(--spacing-xl);
    }
}

/* Responsive header user info */
@media (max-width: 768px) {
    .header-user {
        padding: 0 1rem;
        gap: 0.5rem;
    }
    
    .main-content {
        padding: 1.5rem;
    }
    
    .sidebar {
        padding: 1.5rem 0;
    }
    
    .sidebar-header {
        padding: 0 1.5rem 1.5rem;
    }
    
    .data-table {
        min-width: 500px;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.5rem;
        font-size: var(--font-size-xs);
    }
    
    .action-buttons {
        gap: 0.125rem;
    }
    
    .action-btn {
        padding: 0.25rem 0.375rem;
        font-size: var(--font-size-xs);
    }
    
    .action-btn span {
        display: none;
    }
    
    .action-btn i {
        font-size: 0.75rem;
    }
    
    .user-profile {
        gap: 0.5rem;
    }
    
    .user-avatar {
        width: 32px;
        height: 32px;
        font-size: var(--font-size-xs);
    }
    
    .user-controls {
        gap: 0.375rem;
    }
    
    .logout-btn,
    .admin-link {
        width: 32px;
        height: 32px;
        min-width: 32px;
        padding: 0.375rem;
        font-size: var(--font-size-xs);
    }
}

@media (max-width: 480px) {
    .header-user {
        padding: 0.5rem;
        gap: 0.5rem;
    }
    
    .user-profile {
        gap: 0.5rem;
    }
    
    .user-avatar {
        width: 28px;
        height: 28px;
    }
    
    .user-name {
        font-size: var(--font-size-xs);
    }
    
    .user-role {
        font-size: 0.625rem;
    }
    
    .sidebar {
        padding: 1rem 0;
    }
    
    .sidebar-header {
        padding: 0 1rem 1rem;
    }
    
    .sidebar-title {
        font-size: var(--font-size-lg);
    }
    
    .nav-item {
        padding: 0.5rem 1rem;
        font-size: var(--font-size-sm);
    }
    
    .nav-item i {
        font-size: 1rem;
        width: 16px;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .page-header {
        margin-bottom: 1rem;
    }
    
    .page-title {
        font-size: var(--font-size-xl);
    }
    
    .card {
        padding: 1rem;
    }
    
    .data-table {
        min-width: 400px;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.375rem;
        font-size: var(--font-size-xs);
    }
    
    .action-buttons {
        gap: 0.125rem;
        flex-direction: column;
        align-items: stretch;
    }
    
    .user-controls {
        gap: 0.25rem;
    }
    
    .logout-btn,
    .admin-link {
        width: 28px;
        height: 28px;
        min-width: 28px;
        padding: 0.25rem;
        font-size: var(--font-size-xs);
    }
    
    .action-btn {
        padding: 0.25rem;
        justify-content: center;
        width: 100%;
    }
    
    .data-table .actions-column {
        width: 80px;
        min-width: 80px;
        max-width: 80px;
    }
    
    .data-table .status-column {
        width: 80px;
        min-width: 80px;
        max-width: 80px;
    }
    
    .data-table .date-column {
        width: 100px;
        min-width: 100px;
        max-width: 100px;
    }
}

/* Medium screens (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .data-table {
        min-width: 700px;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.75rem;
    }
    
    .action-buttons {
        gap: 0.25rem;
    }
    
    .action-btn {
        padding: 0.5rem 0.75rem;
    }
    
    .data-table .actions-column {
        width: 140px;
        min-width: 140px;
        max-width: 140px;
    }
    
    .user-actions {
        gap: 0.375rem;
        padding: 0 0.25rem;
    }
    
    .logout-btn,
    .admin-link {
        padding: 0.375rem 0.75rem;
        font-size: var(--font-size-xs);
        min-width: 100px;
    }
}

/* Small tablets (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    :root {
        --font-size-2xl: 1.75rem;
        --font-size-3xl: 2.25rem;
    }
    
    .modal-content {
        padding: var(--spacing-xl);
        max-width: 90%;
    }
    
    .data-table th,
    .data-table td {
        padding: var(--spacing-sm);
    }
}

/* Mobile devices (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
    :root {
        --font-size-base: 0.9rem;
        --font-size-md: 1rem;
        --font-size-lg: 1.1rem;
        --font-size-xl: 1.3rem;
        --font-size-2xl: 1.6rem;
    }
    
    .card {
        padding: var(--spacing-lg);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-xs);
    }
    
    .user-actions {
        gap: 0.25rem;
        padding: 0 0.25rem;
    }
    
    .logout-btn,
    .admin-link {
        padding: 0.375rem 0.5rem;
        font-size: var(--font-size-xs);
        min-width: 90px;
    }
}

/* Very small mobile devices (up to 479px) */
@media (max-width: 479px) {
    :root {
        --font-size-xs: 0.6rem;
        --font-size-sm: 0.7rem;
        --font-size-base: 0.8rem;
        --font-size-md: 0.9rem;
        --font-size-lg: 1rem;
        --font-size-xl: 1.1rem;
        --font-size-2xl: 1.4rem;
        --spacing-xs: 0.2rem;
        --spacing-sm: 0.4rem;
        --spacing-md: 0.6rem;
        --spacing-lg: 0.8rem;
        --spacing-xl: 1rem;
        --spacing-2xl: 1.5rem;
    }
    
    .page-title {
        font-size: var(--font-size-xl);
        line-height: 1.3;
    }
    
    .sidebar-title {
        font-size: var(--font-size-lg);
    }
    
    .card {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        min-height: 36px;
    }
    
    .action-btn {
        padding: var(--spacing-xs);
        font-size: var(--font-size-xs);
        min-height: 32px;
    }
    
    .data-table th,
    .data-table td {
        padding: var(--spacing-xs);
        font-size: var(--font-size-xs);
    }
    
    .modal-content {
        padding: var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .login-card {
        padding: var(--spacing-lg);
    }
    
    .form-input {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
}

/* Landscape orientation adjustments for mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .page-title {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-xs);
    }
    
    .page-header {
        margin-bottom: var(--spacing-md);
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
    
    .login-card {
        padding: var(--spacing-md);
        max-height: 90vh;
        overflow-y: auto;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .nav-item::before,
    .action-btn-icon {
        /* Crisp icons on retina displays */
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .loading-spinner {
        animation: none;
    }
}

/* Dark mode disabled - causes inconsistent theming across components */

/* Enhanced Search and Filter Styles */
.search-container {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    padding: 1rem;
    background: var(--card-background);
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}

.search-input {
    flex: 1;
    min-width: 200px;
    max-width: 400px;
}

.filter-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.filter-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.date-range {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.date-input {
    width: 120px;
    min-width: 120px;
}

/* Responsive filter adjustments */
@media (max-width: 768px) {
    .search-container {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    
    .search-input {
        min-width: auto;
        max-width: none;
    }
    
    .filter-group {
        justify-content: center;
    }
    
    .date-range {
        justify-content: center;
    }
    
    .date-input {
        width: 100px;
        min-width: 100px;
    }
}

@media (max-width: 480px) {
    .search-container {
        padding: 0.75rem;
        gap: 0.5rem;
    }
    
    .filter-item {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }
    
    .date-input {
        width: 100%;
        min-width: auto;
    }
}

/* Print styles */
@media print {
    * {
        color: black !important;
        background: white !important;
        box-shadow: none !important;
    }
    
    .sidebar,
    .action-buttons,
    .btn {
        display: none !important;
    }
    
    .main-content {
        padding: 0 !important;
        margin: 0 !important;
    }
    
    .page-title {
        font-size: 18pt;
        margin-bottom: 12pt;
    }
    
    .data-table {
        border-collapse: collapse;
        width: 100%;
    }
    
    .data-table th,
    .data-table td {
        border: 1px solid black;
        padding: 6pt;
        font-size: 10pt;
    }
}

/* Network Graph Styles */
.stat-card {
    transition: all 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#networkContainer {
    transition: all 0.3s ease;
}

#networkContainer:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

#nodeInfoPanel {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95) !important;
    border: 1px solid rgba(226, 232, 240, 0.8) !important;
}

.filters-container {
    transition: all 0.3s ease;
}

/* Network legend animations */
.legend-item {
    transition: transform 0.2s ease;
}

.legend-item:hover {
    transform: scale(1.05);
}

/* Enhanced loading state for network */
#networkLoading .loading-spinner {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

/* Network control buttons */
.network-controls .btn {
    transition: all 0.2s ease;
}

.network-controls .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Statistics animation */
.stat-card div:first-child {
    font-weight: 700;
    transition: color 0.3s ease;
}

.stat-card:hover div:first-child {
    transform: scale(1.1);
    transition: transform 0.2s ease;
}

/* Responsive network container */
@media (max-width: 768px) {
    #networkContainer {
        height: 400px !important;
    }
    
    #nodeInfoPanel {
        position: relative !important;
        top: auto !important;
        right: auto !important;
        margin-top: 1rem;
        max-width: 100%;
    }
    
    .filters-container > div {
        grid-template-columns: 1fr !important;
    }
}

/* Network zoom controls enhancement */
.vis-network .vis-navigation {
    z-index: 100;
}

/* Custom tooltip styles for vis.js */
.vis-tooltip {
    background: rgba(255, 255, 255, 0.95) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 8px !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
    font-family: inherit !important;
    font-size: 0.875rem !important;
    padding: 0.75rem !important;
    max-width: 300px !important;
}

/* Enhanced network selection styles */
.vis-network .vis-manipulation {
    background: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    border-radius: 8px !important;
}

/* Icon enhancements for better visual hierarchy */
.action-btn-icon.icon-maximize::before {
    content: "⛶";
}

.action-btn-icon.icon-refresh::before {
    content: "↻";
}

.action-btn-icon.icon-close::before {
    content: "✕";
}

/* ============================================================================
   MARKDOWN STYLES
   ============================================================================ */

/* Markdown content container */
.markdown-content {
    line-height: 1.6;
    color: var(--text-primary);
}

/* Headers */
.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
    margin: 1.5rem 0 1rem 0;
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

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

.markdown-content h2 {
    font-size: var(--font-size-xl);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.25rem;
}

.markdown-content h3 {
    font-size: var(--font-size-lg);
}

.markdown-content h4 {
    font-size: var(--font-size-md);
}

.markdown-content h5 {
    font-size: var(--font-size-base);
}

.markdown-content h6 {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Paragraphs and text */
.markdown-content p {
    margin: 1rem 0;
    line-height: 1.6;
}

.markdown-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

.markdown-content em {
    font-style: italic;
    color: var(--text-primary);
}

/* Lists */
.markdown-list {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.markdown-list li {
    margin: 0.5rem 0;
    line-height: 1.5;
}

.markdown-list ul,
.markdown-list ol {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

/* Code blocks */
.markdown-code {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    margin: 1rem 0;
    overflow-x: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.4;
}

.markdown-inline-code {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.125rem 0.375rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    color: var(--text-primary);
}

/* Blockquotes */
.markdown-quote {
    border-left: 4px solid var(--primary-color);
    background: var(--primary-soft);
    padding: 1rem 1.5rem;
    margin: 1rem 0;
    border-radius: 0 6px 6px 0;
    font-style: italic;
    color: var(--text-primary);
}

.markdown-quote p {
    margin: 0;
}

/* Tables */
.markdown-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    background: var(--card-background);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.markdown-table th {
    background: var(--card-header-bg);
    padding: 0.75rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

.markdown-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.markdown-table tr:hover {
    background: var(--hover-bg);
}

/* Links */
.markdown-content a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
}

.markdown-content a:hover {
    color: var(--primary-hover);
    border-bottom-color: var(--primary-hover);
}

/* Horizontal rules */
.markdown-content hr {
    border: none;
    border-top: 2px solid var(--border-color);
    margin: 2rem 0;
}

/* Error styling */
.markdown-error {
    background: var(--error-color);
    color: white;
    padding: 1rem;
    border-radius: 6px;
    margin: 1rem 0;
    font-family: monospace;
    white-space: pre-wrap;
}

/* Responsive markdown */
@media (max-width: 768px) {
    .markdown-content h1 {
        font-size: var(--font-size-xl);
    }
    
    .markdown-content h2 {
        font-size: var(--font-size-lg);
    }
    
    .markdown-table {
        font-size: 0.875rem;
    }
    
    .markdown-table th,
    .markdown-table td {
        padding: 0.5rem;
    }
    
    .markdown-code {
        padding: 0.75rem;
        font-size: 0.8rem;
    }
}