// Network Security Dashboard Styles
// Author: Hirotoshi Uchida
// Project: Network Security App

// Variables
$primary-color: #007bff;
$secondary-color: #6c757d;
$success-color: #28a745;
$danger-color: #dc3545;
$warning-color: #ffc107;
$info-color: #17a2b8;
$dark-color: #343a40;
$light-color: #f8f9fa;

$border-radius: 0.375rem;
$box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
$box-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);

// Mixins
@mixin card-style {
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.125);
    border-radius: $border-radius;
    box-shadow: $box-shadow;
    transition: all 0.3s ease;
    
    &:hover {
        box-shadow: $box-shadow-lg;
        transform: translateY(-2px);
    }
}

@mixin gradient-background($start, $end) {
    background: linear-gradient(135deg, $start 0%, $end 100%);
}

@mixin pulse-animation {
    animation: pulse 2s infinite;
    
    @keyframes pulse {
        0% { transform: scale(1); }
        50% { transform: scale(1.05); }
        100% { transform: scale(1); }
    }
}

@mixin glow-effect($color) {
    box-shadow: 0 0 20px rgba($color, 0.3);
    transition: box-shadow 0.3s ease;
    
    &:hover {
        box-shadow: 0 0 30px rgba($color, 0.5);
    }
}

// Base styles
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f6f9;
    color: #495057;
    line-height: 1.6;
}

// Navigation
.navbar {
    @include gradient-background($dark-color, lighten($dark-color, 10%));
    border-bottom: 3px solid $primary-color;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    
    .navbar-brand {
        font-weight: 700;
        font-size: 1.5rem;
        color: white !important;
        
        i {
            margin-right: 0.5rem;
            color: $primary-color;
        }
    }
    
    .navbar-text {
        color: rgba(255, 255, 255, 0.8) !important;
        font-weight: 500;
        
        i {
            margin-right: 0.5rem;
            color: $success-color;
        }
    }
}

// Sidebar
.sidebar {
    background: white;
    border-right: 1px solid #dee2e6;
    min-height: calc(100vh - 76px);
    box-shadow: 2px 0 4px rgba(0, 0, 0, 0.1);
    
    .nav-link {
        color: #495057;
        font-weight: 500;
        padding: 0.75rem 1rem;
        border-radius: $border-radius;
        margin: 0.25rem;
        transition: all 0.3s ease;
        
        i {
            margin-right: 0.75rem;
            width: 20px;
            text-align: center;
        }
        
        &:hover {
            background-color: rgba($primary-color, 0.1);
            color: $primary-color;
            transform: translateX(5px);
        }
        
        &.active {
            background-color: $primary-color;
            color: white;
            
            &:hover {
                background-color: darken($primary-color, 10%);
                color: white;
            }
        }
    }
}

// Status Cards
.card {
    @include card-style;
    
    &.border-left-primary {
        border-left: 4px solid $primary-color;
        @include glow-effect($primary-color);
    }
    
    &.border-left-success {
        border-left: 4px solid $success-color;
        @include glow-effect($success-color);
    }
    
    &.border-left-info {
        border-left: 4px solid $info-color;
        @include glow-effect($info-color);
    }
    
    &.border-left-warning {
        border-left: 4px solid $warning-color;
        @include glow-effect($warning-color);
    }
    
    .card-header {
        background: rgba($primary-color, 0.05);
        border-bottom: 1px solid rgba($primary-color, 0.1);
        font-weight: 600;
        
        h6 {
            margin: 0;
            color: $primary-color;
        }
    }
    
    .card-body {
        padding: 1.5rem;
    }
}

// Status indicators
.status-online {
    color: $success-color;
    
    &::before {
        content: '●';
        margin-right: 0.5rem;
        @include pulse-animation;
    }
}

.status-offline {
    color: $danger-color;
    
    &::before {
        content: '●';
        margin-right: 0.5rem;
    }
}

.status-warning {
    color: $warning-color;
    
    &::before {
        content: '●';
        margin-right: 0.5rem;
        @include pulse-animation;
    }
}

// Network topology
#network-topology {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: $border-radius;
    position: relative;
    overflow: hidden;
    
    &::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
        opacity: 0.3;
    }
    
    .topology-node {
        position: absolute;
        width: 40px;
        height: 40px;
        background: rgba(255, 255, 255, 0.9);
        border: 2px solid $primary-color;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.8rem;
        font-weight: 600;
        color: $primary-color;
        cursor: pointer;
        transition: all 0.3s ease;
        z-index: 2;
        
        &:hover {
            transform: scale(1.2);
            background: $primary-color;
            color: white;
            box-shadow: 0 4px 15px rgba($primary-color, 0.4);
        }
        
        &.gateway {
            background: $success-color;
            border-color: $success-color;
            color: white;
            
            &:hover {
                background: darken($success-color, 10%);
                box-shadow: 0 4px 15px rgba($success-color, 0.4);
            }
        }
        
        &.suspicious {
            background: $danger-color;
            border-color: $danger-color;
            color: white;
            @include pulse-animation;
            
            &:hover {
                background: darken($danger-color, 10%);
                box-shadow: 0 4px 15px rgba($danger-color, 0.4);
            }
        }
    }
    
    .topology-link {
        position: absolute;
        height: 2px;
        background: rgba(255, 255, 255, 0.6);
        transform-origin: left center;
        z-index: 1;
        
        &.active {
            background: $success-color;
            height: 3px;
            @include pulse-animation;
        }
        
        &.warning {
            background: $warning-color;
            height: 3px;
        }
        
        &.danger {
            background: $danger-color;
            height: 3px;
            @include pulse-animation;
        }
    }
}

// Charts
.chart-container {
    position: relative;
    height: 300px;
    
    canvas {
        max-height: 100%;
    }
}

// Tables
.table {
    background: white;
    border-radius: $border-radius;
    overflow: hidden;
    
    thead {
        background: $primary-color;
        color: white;
        
        th {
            border: none;
            font-weight: 600;
            text-transform: uppercase;
            font-size: 0.85rem;
            letter-spacing: 0.5px;
        }
    }
    
    tbody {
        tr {
            transition: all 0.3s ease;
            
            &:hover {
                background-color: rgba($primary-color, 0.05);
                transform: scale(1.01);
            }
            
            &.table-success {
                background-color: rgba($success-color, 0.1);
                border-left: 4px solid $success-color;
            }
            
            &.table-warning {
                background-color: rgba($warning-color, 0.1);
                border-left: 4px solid $warning-color;
            }
            
            &.table-danger {
                background-color: rgba($danger-color, 0.1);
                border-left: 4px solid $danger-color;
            }
        }
        
        td {
            border-top: 1px solid rgba(0, 0, 0, 0.05);
            vertical-align: middle;
            
            .badge {
                font-size: 0.75rem;
                padding: 0.375rem 0.75rem;
            }
        }
    }
}

// Security Alerts
.security-alerts {
    .alert {
        border: none;
        border-radius: $border-radius;
        margin-bottom: 1rem;
        padding: 1.25rem;
        position: relative;
        overflow: hidden;
        
        &::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: currentColor;
        }
        
        &.alert-danger {
            background: linear-gradient(135deg, rgba($danger-color, 0.1) 0%, rgba($danger-color, 0.05) 100%);
            color: darken($danger-color, 20%);
            @include glow-effect($danger-color);
            
            .alert-icon {
                color: $danger-color;
            }
        }
        
        &.alert-warning {
            background: linear-gradient(135deg, rgba($warning-color, 0.1) 0%, rgba($warning-color, 0.05) 100%);
            color: darken($warning-color, 30%);
            @include glow-effect($warning-color);
            
            .alert-icon {
                color: $warning-color;
            }
        }
        
        &.alert-info {
            background: linear-gradient(135deg, rgba($info-color, 0.1) 0%, rgba($info-color, 0.05) 100%);
            color: darken($info-color, 20%);
            @include glow-effect($info-color);
            
            .alert-icon {
                color: $info-color;
            }
        }
        
        .alert-icon {
            font-size: 1.5rem;
            margin-right: 1rem;
            float: left;
        }
        
        .alert-content {
            overflow: hidden;
            
            .alert-title {
                font-weight: 700;
                margin-bottom: 0.5rem;
                font-size: 1.1rem;
            }
            
            .alert-description {
                margin-bottom: 0.75rem;
                line-height: 1.5;
            }
            
            .alert-details {
                font-size: 0.9rem;
                opacity: 0.8;
                
                .detail-item {
                    margin-right: 1rem;
                    
                    strong {
                        color: currentColor;
                    }
                }
            }
            
            .alert-timestamp {
                font-size: 0.8rem;
                opacity: 0.7;
                margin-top: 0.5rem;
            }
        }
    }
}

// Buttons
.btn {
    border-radius: $border-radius;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
    
    &:hover {
        transform: translateY(-1px);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    }
    
    &.btn-primary {
        @include gradient-background($primary-color, darken($primary-color, 10%));
        border: none;
    }
    
    &.btn-success {
        @include gradient-background($success-color, darken($success-color, 10%));
        border: none;
    }
    
    &.btn-danger {
        @include gradient-background($danger-color, darken($danger-color, 10%));
        border: none;
    }
    
    &.btn-warning {
        @include gradient-background($warning-color, darken($warning-color, 10%));
        border: none;
        color: white;
    }
}

// Loading states
.loading {
    position: relative;
    
    &::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 20px;
        height: 20px;
        margin: -10px 0 0 -10px;
        border: 2px solid rgba($primary-color, 0.3);
        border-top: 2px solid $primary-color;
        border-radius: 50%;
        animation: spin 1s linear infinite;
    }
    
    @keyframes spin {
        0% { transform: rotate(0deg); }
        100% { transform: rotate(360deg); }
    }
}

// Real-time indicators
.realtime-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: $success-color;
    border-radius: 50%;
    margin-right: 0.5rem;
    @include pulse-animation;
    
    &.offline {
        background: $danger-color;
        animation: none;
    }
    
    &.warning {
        background: $warning-color;
    }
}

// Progress bars
.progress {
    background-color: rgba($primary-color, 0.1);
    border-radius: $border-radius;
    
    .progress-bar {
        background: linear-gradient(90deg, $primary-color 0%, lighten($primary-color, 10%) 100%);
        transition: width 0.6s ease;
        
        &.bg-success {
            background: linear-gradient(90deg, $success-color 0%, lighten($success-color, 10%) 100%);
        }
        
        &.bg-warning {
            background: linear-gradient(90deg, $warning-color 0%, lighten($warning-color, 10%) 100%);
        }
        
        &.bg-danger {
            background: linear-gradient(90deg, $danger-color 0%, lighten($danger-color, 10%) 100%);
        }
    }
}

// Tooltips
.tooltip {
    .tooltip-inner {
        background-color: rgba($dark-color, 0.9);
        color: white;
        padding: 0.5rem 0.75rem;
        border-radius: $border-radius;
        font-size: 0.8rem;
        font-weight: 500;
    }
    
    .arrow::before {
        border-top-color: rgba($dark-color, 0.9);
    }
}

// Footer
footer {
    background: $dark-color;
    color: rgba(255, 255, 255, 0.8);
    padding: 2rem 0;
    
    a {
        color: $primary-color;
        text-decoration: none;
        transition: color 0.3s ease;
        
        &:hover {
            color: lighten($primary-color, 20%);
        }
    }
}

// Responsive design
@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    
    main {
        margin-left: 0 !important;
        padding-left: 0 !important;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    #network-topology {
        height: 250px;
    }
    
    .topology-node {
        width: 30px;
        height: 30px;
        font-size: 0.7rem;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .table-responsive {
        font-size: 0.9rem;
    }
    
    .security-alerts .alert {
        padding: 1rem;
        
        .alert-icon {
            font-size: 1.2rem;
            margin-right: 0.75rem;
        }
    }
}

// Dark mode support
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #e9ecef;
    }
    
    .card {
        background-color: #2d3748;
        border-color: #4a5568;
        color: #e9ecef;
    }
    
    .table {
        background-color: #2d3748;
        color: #e9ecef;
        
        tbody tr:hover {
            background-color: rgba(255, 255, 255, 0.05);
        }
    }
    
    .sidebar {
        background-color: #2d3748;
        border-color: #4a5568;
    }
}

// Custom animations
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

// Animation classes
.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

.animate-zoom-in {
    animation: zoomIn 0.4s ease-out;
}

// Utility classes
.text-shadow {
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.box-shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.box-shadow-lg {
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

.border-radius-lg {
    border-radius: 0.5rem;
}

.gradient-primary {
    @include gradient-background($primary-color, darken($primary-color, 10%));
}

.gradient-success {
    @include gradient-background($success-color, darken($success-color, 10%));
}

.gradient-danger {
    @include gradient-background($danger-color, darken($danger-color, 10%));
}

.gradient-warning {
    @include gradient-background($warning-color, darken($warning-color, 10%));
}

// Print styles
@media print {
    .navbar,
    .sidebar,
    footer,
    .btn,
    .security-alerts {
        display: none;
    }
    
    .card {
        border: 1px solid #000;
        box-shadow: none;
    }
    
    .table {
        font-size: 0.8rem;
    }
}