:root {
    /* Main Palette - Indigo & Slate */
    --primary: #4F46E5;        /* Основной акцент */
    --primary-hover: #4338CA;
    --primary-light: #EEF2FF;  /* Светлый фон для активных элементов */
    
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    
    /* Neutrals */
    --text-main: #111827;      /* Основной текст */
    --text-secondary: #6B7280; /* Вторичный текст */
    --text-light: #9CA3AF;     /* Неактивный текст */
    
    --bg-body: #F3F4F6;        /* Светло-серый фон страницы */
    --bg-surface: #FFFFFF;     /* Белый фон карточек и меню */
    
    --border-color: #E5E7EB;   /* Цвет границ */
    --border-hover: #D1D5DB;

    /* Dimensions */
    --radius-sm: 0.375rem;     /* 6px */
    --radius-md: 0.5rem;       /* 8px */
    --radius-lg: 0.75rem;      /* 12px */
    --sidebar-width: 280px;
    --header-height: 4rem;
}

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* === Global Overrides === */

/* Remove Shadows Everywhere */
* {
    box-shadow: none !important;
}

/* Links */
a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}
a:hover {
    color: var(--primary-hover);
}

/* === Bootstrap Overrides for Flat Design === */

/* Cards */
.card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--text-main);
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    background-color: transparent;
    border-top: 1px solid var(--border-color);
}

/* Buttons */
.btn {
    border-radius: var(--radius-md);
    padding: 0.5rem 1rem;
    font-weight: 500;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

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

.btn-secondary {
    background-color: white;
    border-color: var(--border-color);
    color: var(--text-main);
}
.btn-secondary:hover {
    background-color: var(--bg-body);
    border-color: var(--border-hover);
    color: var(--text-main);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--border-color); /* Subtle border initially */
    background-color: white;
}
.btn-outline-primary:hover, .btn-check:checked + .btn-outline-primary {
    background-color: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}

/* Inputs */
.form-control, .form-select {
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    background-color: var(--bg-surface);
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    background-color: var(--bg-surface);
}

/* Tables */
.table {
    color: var(--text-main);
}
.table th {
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem;
    background-color: transparent;
}
.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}
.table-hover tbody tr:hover {
    background-color: var(--bg-body);
}

/* === Layout Specifics that affect all pages === */

/* Page Title */
h1, .h1 {
    font-weight: 700;
    color: var(--text-main);
    font-size: 1.875rem;
    margin-bottom: 1.5rem;
}

/* Badge / Status labels */
.badge {
    border-radius: var(--radius-sm);
    font-weight: 500;
    padding: 0.35em 0.65em;
}

/* === УЛУЧШЕННЫЕ АЛЕРТЫ === */
.alert {
    border-radius: var(--radius-md);
    border: 1px solid;
    padding: 0.875rem 1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.9rem;
    line-height: 1.5;
    position: relative;
}

.alert-dismissible {
    padding-right: 3rem;
}

.alert-dismissible .btn-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    padding: 0.25rem;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.alert-dismissible .btn-close:hover {
    opacity: 1;
}

/* Alert Danger - Улучшенный дизайн */
.alert-danger {
    background-color: #FEF2F2;
    border-color: #FCA5A5;
    color: #991B1B;
}

.alert-danger .oi-warning,
.alert-danger .bi-exclamation-triangle {
    color: #DC2626;
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

/* Alert Success */
.alert-success {
    background-color: #ECFDF5;
    border-color: #86EFAC;
    color: #065F46;
}

.alert-success .oi-check,
.alert-success .bi-check-circle {
    color: var(--success);
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

/* Alert Warning */
.alert-warning {
    background-color: #FFFBEB;
    border-color: #FDE047;
    color: #92400E;
}

.alert-warning .oi-warning,
.alert-warning .bi-exclamation-triangle {
    color: var(--warning);
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

/* Alert Info */
.alert-info {
    background-color: #EFF6FF;
    border-color: #93C5FD;
    color: #1E40AF;
}

.alert-info .oi-info,
.alert-info .bi-info-circle {
    color: #3B82F6;
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

/* Мобильная версия алертов */
@media (max-width: 640.98px) {
    .alert {
        padding: 0.75rem 0.875rem;
        font-size: 0.875rem;
        gap: 0.625rem;
    }

    .alert-dismissible {
        padding-right: 2.5rem;
    }

    .alert-dismissible .btn-close {
        top: 0.625rem;
        right: 0.625rem;
        padding: 0.2rem;
    }
}


/* === Mobile Header Fixes === */
.mobile-header-bar {
    display: none;
}

@media (max-width: 640.98px) {
    .mobile-header-bar {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 3rem;
        background-color: var(--bg-surface);
        border-bottom: 1px solid var(--border-color);
        position: sticky;
        top: 0;
        z-index: 20;
    }
    
    .mobile-brand {
        font-weight: 700;
        font-size: 1.1rem;
        color: var(--text-main);
    }

    /* Remove weird padding from content if any */
    .content {
        padding-top: 1rem !important; 
    }
}

/* === More Page Styles === */
.mobile-more-page {
    padding-bottom: 2rem;
}

.menu-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.menu-card {
    display: flex;
    align-items: center;
    background-color: var(--bg-surface);
    padding: 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    text-decoration: none;
    transition: background-color 0.2s;
}

.menu-card:active {
    background-color: var(--bg-body);
}

.icon-box {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    font-size: 1.25rem;
}

.icon-box.primary { background-color: #EEF2FF; color: var(--primary); }
.icon-box.success { background-color: #ECFDF5; color: var(--success); }
.icon-box.warning { background-color: #FFFBEB; color: var(--warning); }
.icon-box.danger { background-color: #FEF2F2; color: var(--danger); }
.icon-box.info { background-color: #EFF6FF; color: #3B82F6; }
.icon-box.purple { background-color: #F5F3FF; color: #8B5CF6; }
.icon-box.dark { background-color: #F3F4F6; color: var(--text-main); }
.icon-box.danger-light { background-color: #FEF2F2; color: var(--danger); }

.menu-card span {
    flex: 1;
    font-weight: 500;
}

.menu-card .arrow {
    color: var(--text-light);
    font-size: 0.9rem;
}

.menu-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 1rem 0;
}

.menu-card.logout {
    color: var(--danger);
}

/* === Better Bottom Nav === */
.bottom-nav {
    display: none; /* Desktop default */
}

@media (max-width: 640.98px) {
    .bottom-nav {
        display: grid;
        grid-template-columns: repeat(5, 1fr); /* Равномерное распределение */
        align-items: center;
        justify-items: center; /* Центрируем содержимое каждой колонки */
        padding: 0.5rem 0.25rem max(0.5rem, env(safe-area-inset-bottom)) 0.25rem;
        min-height: calc(4rem + env(safe-area-inset-bottom));
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border-top: 1px solid rgba(0,0,0,0.05);
        box-shadow: 0 -4px 20px rgba(0,0,0,0.03) !important;
        
        /* Fixed position for mobile */
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 1030;
    }

    .bottom-nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 0.25rem;
        padding: 0;
        text-decoration: none;
        color: var(--text-secondary);
        transition: color 0.2s;
        width: 100%;
        max-width: 100%;
    }
    
    .bottom-nav-item i {
        font-size: 1.5rem;
        transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        display: block;
    }
    
    .bottom-nav-item.active {
        color: var(--primary);
    }
    
    .bottom-nav-item.active i {
        transform: translateY(-2px);
    }
    
    .bottom-nav-item span {
        font-size: 0.65rem;
        font-weight: 500;
        line-height: 1;
        white-space: nowrap;
    }

    /* Center FAB Button */
    .bottom-nav-center {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 0.25rem;
        padding: 0;
        width: 100%;
        max-width: 100%;
    }

    .bottom-nav-fab {
        width: 3rem;
        height: 3rem;
        background: var(--primary);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4) !important;
        transition: transform 0.2s;
        text-decoration: none;
        margin-top: -0.75rem; /* Поднимаем FAB выше */
        flex-shrink: 0;
    }

    .bottom-nav-fab:active {
        transform: scale(0.95);
    }
    
    .bottom-nav-fab i {
        font-size: 1.5rem;
        line-height: 1;
    }
    
    .bottom-nav-center span {
        font-size: 0.65rem;
        color: var(--text-secondary);
        font-weight: 500;
        line-height: 1;
        white-space: nowrap;
        margin-top: 0.25rem; /* Отступ от кнопки */
    }
    
    .bottom-nav-fab.active {
        background-color: var(--primary-hover);
        color: white;
    }

    /* Добавляем отступ снизу для контента, чтобы он не перекрывался меню */
    body {
        padding-bottom: calc(4.5rem + env(safe-area-inset-bottom));
    }
}

/* === Visibility Helpers === */
.hide-on-mobile {
    display: block !important;
}
.show-on-mobile {
    display: none !important;
}

@media (max-width: 640.98px) {
    .hide-on-mobile {
        display: none !important;
    }
    .show-on-mobile {
        display: flex !important;
    }
}

/* === Mobile List (Cards instead of Table) === */
@media (max-width: 640.98px) {
    /* Hide Table Header */
    .table thead {
        display: none;
    }

    /* Block display for table rows */
    .table tbody, .table tr, .table td {
        display: block;
        width: 100%;
    }

    /* Card style for rows */
    .table tbody tr {
        background-color: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        margin-bottom: 1rem;
        padding: 1rem;
        position: relative;
    }

    /* Cell styling */
    .table tbody td {
        padding: 0.25rem 0;
        border: none;
        display: flex;
        justify-content: space-between;
        align-items: center;
        text-align: right;
    }

    /* Pseudo-labels for common columns (Generic fallback) */
    .table tbody td:before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--text-secondary);
        font-size: 0.85rem;
        text-align: left;
        margin-right: 1rem;
    }

    /* Specific fixes for Index page (Contracts) */
    /* Assuming first column is ID/Name, we make it bold and prominent */
    .table tbody tr td:first-child {
        font-weight: 700;
        font-size: 1.1rem;
        color: var(--text-main);
        padding-bottom: 0.5rem;
        border-bottom: 1px dashed var(--border-color);
        margin-bottom: 0.5rem;
        display: block;
        text-align: left;
    }

    /* Badge alignment */
    .table .badge {
        display: inline-block;
        margin-top: 0.25rem;
    }
}