@extends('patent::layouts.master')

@section('title', 'Annual Fees Dashboard')

@section('content')
<div class="content-wrapper">
    <!-- Enhanced Header with Gradient -->
    <div class="content-header">
        <div class="container-fluid">
            <div class="row mb-3">
                <div class="col-12">
                    <div class="dashboard-header">
                        <div class="row align-items-center">
                            <div class="col-md-8">
                                <h1 class="dashboard-title">
                                    <i class="fas fa-chart-line text-primary"></i>
                                    Annual Fees Management Dashboard
                                </h1>
                                <p class="dashboard-subtitle text-muted">
                                    Comprehensive overview of patent annual fees, deadlines, and financial tracking
                                </p>
                            </div>
                            <div class="col-md-4 text-right">
                                <div class="header-actions">
                                    <a href="{{ route('patent.annual-fees.create') }}" class="btn btn-primary btn-lg">
                                        <i class="fas fa-plus"></i> New Deadline
                                    </a>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <div class="content">
        <div class="container-fluid">
            <!-- Enhanced Statistics Cards with Animations -->
            <div class="row mb-4">
                <div class="col-lg-3 col-md-6 mb-3">
                    <div class="stat-card stat-card-primary">
                        <div class="stat-card-body">
                            <div class="stat-card-icon">
                                <i class="fas fa-calendar-check"></i>
                            </div>
                            <div class="stat-card-content">
                                <h3 class="stat-card-number">{{ number_format($stats['total_deadlines']) }}</h3>
                                <p class="stat-card-label">Total Deadlines</p>
                                <div class="stat-card-trend">
                                    <i class="fas fa-arrow-up text-success"></i>
                                    <span class="text-success">Active</span>
                                </div>
                            </div>
                        </div>
                        <div class="stat-card-footer">
                            <a href="{{ route('patent.annual-fees.index') }}" class="stat-card-link">
                                <i class="fas fa-eye"></i> View All
                            </a>
                        </div>
                    </div>
                </div>

                <div class="col-lg-3 col-md-6 mb-3">
                    <div class="stat-card stat-card-warning">
                        <div class="stat-card-body">
                            <div class="stat-card-icon">
                                <i class="fas fa-clock"></i>
                            </div>
                            <div class="stat-card-content">
                                <h3 class="stat-card-number">{{ number_format($stats['pending_deadlines']) }}</h3>
                                <p class="stat-card-label">Pending Deadlines</p>
                                <div class="stat-card-trend">
                                    <i class="fas fa-exclamation-circle text-warning"></i>
                                    <span class="text-warning">Requires Action</span>
                                </div>
                            </div>
                        </div>
                        <div class="stat-card-footer">
                            <a href="{{ route('patent.annual-fees.index') }}?status=pending" class="stat-card-link">
                                <i class="fas fa-tasks"></i> Manage
                            </a>
                        </div>
                    </div>
                </div>

                <div class="col-lg-3 col-md-6 mb-3">
                    <div class="stat-card stat-card-danger">
                        <div class="stat-card-body">
                            <div class="stat-card-icon">
                                <i class="fas fa-exclamation-triangle"></i>
                            </div>
                            <div class="stat-card-content">
                                <h3 class="stat-card-number">{{ number_format($stats['overdue_deadlines']) }}</h3>
                                <p class="stat-card-label">Overdue Deadlines</p>
                                <div class="stat-card-trend">
                                    <i class="fas fa-exclamation-triangle text-danger"></i>
                                    <span class="text-danger">Urgent</span>
                                </div>
                            </div>
                        </div>
                        <div class="stat-card-footer">
                            <a href="{{ route('patent.annual-fees.index') }}?status=overdue" class="stat-card-link">
                                <i class="fas fa-fire"></i> Take Action
                            </a>
                        </div>
                    </div>
                </div>

                <div class="col-lg-3 col-md-6 mb-3">
                    <div class="stat-card stat-card-success">
                        <div class="stat-card-body">
                            <div class="stat-card-icon">
                                <i class="fas fa-dollar-sign"></i>
                            </div>
                            <div class="stat-card-content">
                                <h3 class="stat-card-number">${{ number_format($stats['total_amount_due'], 2) }}</h3>
                                <p class="stat-card-label">Total Amount Due</p>
                                <div class="stat-card-trend">
                                    <i class="fas fa-chart-line text-success"></i>
                                    <span class="text-success">Tracked</span>
                                </div>
                            </div>
                        </div>
                        <div class="stat-card-footer">
                            <a href="{{ route('patent.annual-fees.index') }}" class="stat-card-link">
                                <i class="fas fa-chart-bar"></i> Analyze
                            </a>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Additional Stats Row -->
            <div class="row">
                <div class="col-lg-3 col-6">
                    <div class="info-box">
                        <span class="info-box-icon bg-primary"><i class="fas fa-check-circle"></i></span>
                        <div class="info-box-content">
                            <span class="info-box-text">Paid Deadlines</span>
                            <span class="info-box-number">{{ number_format($stats['paid_deadlines']) }}</span>
                        </div>
                    </div>
                </div>

                <div class="col-lg-3 col-6">
                    <div class="info-box">
                        <span class="info-box-icon bg-secondary"><i class="fas fa-ban"></i></span>
                        <div class="info-box-content">
                            <span class="info-box-text">Waived Deadlines</span>
                            <span class="info-box-number">{{ number_format($stats['waived_deadlines']) }}</span>
                        </div>
                    </div>
                </div>

                <div class="col-lg-3 col-6">
                    <div class="info-box">
                        <span class="info-box-icon bg-info"><i class="fas fa-user-check"></i></span>
                        <div class="info-box-content">
                            <span class="info-box-text">Pending Confirmation</span>
                            <span class="info-box-number">{{ number_format($stats['pending_confirmation']) }}</span>
                        </div>
                    </div>
                </div>

                <div class="col-lg-3 col-6">
                    <div class="info-box">
                        <span class="info-box-icon bg-warning"><i class="fas fa-chart-line"></i></span>
                        <div class="info-box-content">
                            <span class="info-box-text">Success Rate</span>
                            <span class="info-box-number">
                                @if($stats['total_deadlines'] > 0)
                                    {{ number_format(($stats['paid_deadlines'] / $stats['total_deadlines']) * 100, 1) }}%
                                @else
                                    0%
                                @endif
                            </span>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Action Buttons -->
            <div class="row">
                <div class="col-12">
                    <div class="card">
                        <div class="card-header">
                            <h3 class="card-title">
                                <i class="fas fa-tools"></i> Quick Actions
                            </h3>
                        </div>
                        <div class="card-body">
                            <div class="row">
                                <div class="col-md-3">
                                    <a href="{{ route('patent.annual-fees.generate-all') }}" class="btn btn-primary btn-block mb-2">
                                        <i class="fas fa-magic"></i> Generate All Deadlines
                                    </a>
                                </div>
                                <div class="col-md-3">
                                    <form action="{{ route('patent.annual-fees.send-notifications') }}" method="POST" class="d-inline">
                                        @csrf
                                        <button type="submit" class="btn btn-info btn-block mb-2">
                                            <i class="fas fa-bell"></i> Send Notifications
                                        </button>
                                    </form>
                                </div>
                                <div class="col-md-3">
                                    <form action="{{ route('patent.annual-fees.update-overdue') }}" method="POST" class="d-inline">
                                        @csrf
                                        <button type="submit" class="btn btn-warning btn-block mb-2">
                                            <i class="fas fa-sync"></i> Update Overdue
                                        </button>
                                    </form>
                                </div>
                                <div class="col-md-3">
                                    <a href="{{ route('patent.annual-fees.export') }}" class="btn btn-success btn-block mb-2">
                                        <i class="fas fa-download"></i> Export Data
                                    </a>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Enhanced Recent Deadlines -->
            <div class="row mb-4">
                <div class="col-12">
                    <div class="deadlines-panel">
                        <div class="deadlines-panel-header">
                            <div class="row align-items-center">
                                <div class="col-md-8">
                                    <h3 class="deadlines-panel-title">
                                        <i class="fas fa-calendar-alt"></i> Recent Deadlines
                                        <span class="deadlines-panel-subtitle">Next 30 Days</span>
                                    </h3>
                                </div>
                                <div class="col-md-4 text-right">
                                    <a href="{{ route('patent.annual-fees.index') }}" class="btn btn-outline-primary">
                                        <i class="fas fa-list"></i> View All Deadlines
                                    </a>
                                </div>
                            </div>
                        </div>
                        <div class="deadlines-panel-body">
                            @if(count($stats['recent_deadlines']) > 0)
                                <div class="deadlines-grid">
                                    @foreach($stats['recent_deadlines'] as $deadline)
                                    <div class="deadline-card deadline-card-{{ $deadline->priority }}">
                                        <div class="deadline-card-header">
                                            <div class="deadline-card-priority">
                                                <span class="priority-badge priority-{{ $deadline->priority }}">
                                                    {{ ucfirst($deadline->priority) }}
                                                </span>
                                            </div>
                                            <div class="deadline-card-actions">
                                                <a href="{{ route('patent.annual-fees.show', $deadline->id) }}" 
                                                   class="btn btn-sm btn-outline-info" title="View Details">
                                                    <i class="fas fa-eye"></i>
                                                </a>
                                                <a href="{{ route('patent.annual-fees.edit', $deadline->id) }}" 
                                                   class="btn btn-sm btn-outline-warning" title="Edit">
                                                    <i class="fas fa-edit"></i>
                                                </a>
                                            </div>
                                        </div>
                                        <div class="deadline-card-body">
                                            <div class="deadline-card-patent">
                                                <h4 class="deadline-card-title">
                                                    {{ $deadline->patent->aipt_ref ?? 'N/A' }}
                                                </h4>
                                                <p class="deadline-card-subtitle">
                                                    {{ Str::limit($deadline->patent->application_title ?? 'N/A', 50) }}
                                                </p>
                                            </div>
                                            <div class="deadline-card-details">
                                                <div class="deadline-card-country">
                                                    <i class="fas fa-flag"></i>
                                                    {{ $deadline->country->name ?? 'N/A' }}
                                                </div>
                                                <div class="deadline-card-amount">
                                                    <i class="fas fa-dollar-sign"></i>
                                                    ${{ number_format($deadline->total_amount_due, 2) }}
                                                </div>
                                                <div class="deadline-card-date {{ $deadline->due_date < now() ? 'overdue' : '' }}">
                                                    <i class="fas fa-calendar"></i>
                                                    {{ $deadline->due_date->format('M d, Y') }}
                                                </div>
                                            </div>
                                            <div class="deadline-card-status">
                                                <span class="status-badge status-{{ $deadline->status }}">
                                                    {{ ucfirst($deadline->status) }}
                                                </span>
                                            </div>
                                        </div>
                                    </div>
                                    @endforeach
                                </div>
                            @else
                                <div class="empty-state">
                                    <div class="empty-state-icon">
                                        <i class="fas fa-calendar-check"></i>
                                    </div>
                                    <h4 class="empty-state-title">No Recent Deadlines</h4>
                                    <p class="empty-state-description">
                                        Great job! No deadlines are due in the next 30 days.
                                    </p>
                                    <a href="{{ route('patent.annual-fees.create') }}" class="btn btn-primary">
                                        <i class="fas fa-plus"></i> Create New Deadline
                                    </a>
                                </div>
                            @endif
                        </div>
                    </div>
                </div>
            </div>

            <!-- Enhanced Charts Row -->
            <div class="row mb-4">
                <div class="col-lg-6 mb-4">
                    <div class="chart-card">
                        <div class="chart-card-header">
                            <h3 class="chart-card-title">
                                <i class="fas fa-chart-pie"></i> Status Distribution
                            </h3>
                            <div class="chart-card-actions">
                                <button class="btn btn-sm btn-outline-secondary" onclick="refreshStatusChart()">
                                    <i class="fas fa-sync"></i>
                                </button>
                            </div>
                        </div>
                        <div class="chart-card-body">
                            <canvas id="statusChart"></canvas>
                        </div>
                        <div class="chart-card-footer">
                            <div class="chart-legend">
                                <div class="legend-item">
                                    <span class="legend-color bg-success"></span>
                                    <span>Paid</span>
                                </div>
                                <div class="legend-item">
                                    <span class="legend-color bg-warning"></span>
                                    <span>Pending</span>
                                </div>
                                <div class="legend-item">
                                    <span class="legend-color bg-danger"></span>
                                    <span>Overdue</span>
                                </div>
                                <div class="legend-item">
                                    <span class="legend-color bg-secondary"></span>
                                    <span>Waived</span>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>

                <div class="col-lg-6 mb-4">
                    <div class="chart-card">
                        <div class="chart-card-header">
                            <h3 class="chart-card-title">
                                <i class="fas fa-chart-bar"></i> Monthly Due Amounts
                            </h3>
                            <div class="chart-card-actions">
                                <button class="btn btn-sm btn-outline-secondary" onclick="refreshMonthlyChart()">
                                    <i class="fas fa-sync"></i>
                                </button>
                            </div>
                        </div>
                        <div class="chart-card-body">
                            <canvas id="monthlyChart"></canvas>
                        </div>
                        <div class="chart-card-footer">
                            <div class="chart-summary">
                                <div class="summary-item">
                                    <span class="summary-label">Total Due:</span>
                                    <span class="summary-value">${{ number_format($stats['total_amount_due'], 2) }}</span>
                                </div>
                                <div class="summary-item">
                                    <span class="summary-label">Average:</span>
                                    <span class="summary-value">${{ $stats['total_deadlines'] > 0 ? number_format($stats['total_amount_due'] / $stats['total_deadlines'], 2) : '0.00' }}</span>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Enhanced CSS Styles -->
<style>
/* Dashboard Header */
.dashboard-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
    border-radius: 15px;
    color: white;
    margin-bottom: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.dashboard-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.dashboard-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 0;
}

.header-actions .btn {
    border-radius: 25px;
    padding: 12px 24px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

.header-actions .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* Enhanced Stat Cards */
.stat-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    overflow: hidden;
    height: 100%;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.15);
}

.stat-card-primary { border-left: 5px solid #007bff; }
.stat-card-warning { border-left: 5px solid #ffc107; }
.stat-card-danger { border-left: 5px solid #dc3545; }
.stat-card-success { border-left: 5px solid #28a745; }

.stat-card-body {
    padding: 1.5rem;
    display: flex;
    align-items: center;
}

.stat-card-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    font-size: 1.5rem;
    color: white;
}

.stat-card-primary .stat-card-icon { background: linear-gradient(135deg, #007bff, #0056b3); }
.stat-card-warning .stat-card-icon { background: linear-gradient(135deg, #ffc107, #e0a800); }
.stat-card-danger .stat-card-icon { background: linear-gradient(135deg, #dc3545, #c82333); }
.stat-card-success .stat-card-icon { background: linear-gradient(135deg, #28a745, #1e7e34); }

.stat-card-content {
    flex: 1;
}

.stat-card-number {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    color: #2c3e50;
}

.stat-card-label {
    color: #6c757d;
    margin: 0.25rem 0;
    font-weight: 500;
}

.stat-card-trend {
    font-size: 0.875rem;
    font-weight: 600;
}

.stat-card-footer {
    background: #f8f9fa;
    padding: 1rem 1.5rem;
    border-top: 1px solid #e9ecef;
}

.stat-card-link {
    color: #6c757d;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.stat-card-link:hover {
    color: #007bff;
    text-decoration: none;
}

/* Metric Cards */
.metric-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    height: 100%;
}

.metric-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.metric-card-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    color: white;
}

.metric-card-success .metric-card-icon { background: linear-gradient(135deg, #28a745, #1e7e34); }
.metric-card-secondary .metric-card-icon { background: linear-gradient(135deg, #6c757d, #545b62); }
.metric-card-info .metric-card-icon { background: linear-gradient(135deg, #17a2b8, #138496); }
.metric-card-warning .metric-card-icon { background: linear-gradient(135deg, #ffc107, #e0a800); }

.metric-card-number {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    color: #2c3e50;
}

.metric-card-label {
    color: #6c757d;
    margin: 0 0 1rem 0;
    font-weight: 500;
}

.metric-card-progress .progress {
    height: 8px;
    border-radius: 4px;
    background: #e9ecef;
}

/* Action Panel */
.action-panel {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    overflow: hidden;
}

.action-panel-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 1.5rem;
    border-bottom: 1px solid #dee2e6;
}

.action-panel-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    color: #2c3e50;
}

.action-panel-subtitle {
    color: #6c757d;
    margin: 0.5rem 0 0 0;
}

.action-panel-body {
    padding: 1.5rem;
}

.action-card {
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
}

.action-card:hover {
    border-color: #007bff;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.action-card-primary { border-color: #007bff; }
.action-card-info { border-color: #17a2b8; }
.action-card-warning { border-color: #ffc107; }
.action-card-success { border-color: #28a745; }

.action-card-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: white;
}

.action-card-primary .action-card-icon { background: linear-gradient(135deg, #007bff, #0056b3); }
.action-card-info .action-card-icon { background: linear-gradient(135deg, #17a2b8, #138496); }
.action-card-warning .action-card-icon { background: linear-gradient(135deg, #ffc107, #e0a800); }
.action-card-success .action-card-icon { background: linear-gradient(135deg, #28a745, #1e7e34); }

.action-card-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
    color: #2c3e50;
}

.action-card-content p {
    color: #6c757d;
    margin: 0 0 1rem 0;
    font-size: 0.9rem;
}

.action-card-action .btn {
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

/* Deadlines Panel */
.deadlines-panel {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    overflow: hidden;
}

.deadlines-panel-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 1.5rem;
    border-bottom: 1px solid #dee2e6;
}

.deadlines-panel-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    color: #2c3e50;
}

.deadlines-panel-subtitle {
    font-size: 0.9rem;
    color: #6c757d;
    font-weight: 400;
    margin-left: 0.5rem;
}

.deadlines-panel-body {
    padding: 1.5rem;
}

.deadlines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.deadline-card {
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.deadline-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.deadline-card-critical { border-color: #dc3545; }
.deadline-card-high { border-color: #ffc107; }
.deadline-card-medium { border-color: #17a2b8; }
.deadline-card-low { border-color: #6c757d; }

.deadline-card-header {
    background: #f8f9fa;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e9ecef;
}

.priority-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.priority-critical { background: #dc3545; color: white; }
.priority-high { background: #ffc107; color: #000; }
.priority-medium { background: #17a2b8; color: white; }
.priority-low { background: #6c757d; color: white; }

.deadline-card-actions .btn {
    margin-left: 0.5rem;
    border-radius: 20px;
}

.deadline-card-body {
    padding: 1.5rem;
}

.deadline-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    color: #2c3e50;
}

.deadline-card-subtitle {
    color: #6c757d;
    margin: 0 0 1rem 0;
    font-size: 0.9rem;
}

.deadline-card-details {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.deadline-card-details > div {
    display: flex;
    align-items: center;
    color: #6c757d;
    font-size: 0.9rem;
}

.deadline-card-details i {
    margin-right: 0.5rem;
    width: 16px;
    color: #007bff;
}

.deadline-card-date.overdue {
    color: #dc3545;
    font-weight: 600;
}

.deadline-card-status {
    text-align: center;
}

.status-badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-pending { background: #ffc107; color: #000; }
.status-paid { background: #28a745; color: white; }
.status-overdue { background: #dc3545; color: white; }
.status-waived { background: #6c757d; color: white; }

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
}

.empty-state-icon {
    font-size: 4rem;
    color: #6c757d;
    margin-bottom: 1rem;
}

.empty-state-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.empty-state-description {
    color: #6c757d;
    margin-bottom: 2rem;
}

/* Chart Cards */
.chart-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    overflow: hidden;
    height: 100%;
}

.chart-card-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 1.5rem;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chart-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    color: #2c3e50;
}

.chart-card-actions .btn {
    border-radius: 20px;
    padding: 0.375rem 0.75rem;
}

.chart-card-body {
    padding: 1.5rem;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-card-footer {
    background: #f8f9fa;
    padding: 1rem 1.5rem;
    border-top: 1px solid #e9ecef;
}

.chart-legend {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
    color: #6c757d;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.chart-summary {
    display: flex;
    justify-content: space-around;
    text-align: center;
}

.summary-item {
    display: flex;
    flex-direction: column;
}

.summary-label {
    font-size: 0.875rem;
    color: #6c757d;
    margin-bottom: 0.25rem;
}

.summary-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dashboard-title {
        font-size: 2rem;
    }
    
    .deadlines-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-card-body {
        height: 250px;
    }
    
    .chart-legend {
        flex-direction: column;
        align-items: center;
        gap: 0.75rem;
    }
    
    .chart-summary {
        flex-direction: column;
        gap: 1rem;
    }
}

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

.stat-card, .metric-card, .action-card, .deadline-card, .chart-card {
    animation: fadeInUp 0.6s ease-out;
}

.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }
.stat-card:nth-child(4) { animation-delay: 0.4s; }
</style>

<!-- Chart.js -->
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>

<script>
document.addEventListener('DOMContentLoaded', function() {
    // Status Distribution Chart
    const statusCtx = document.getElementById('statusChart').getContext('2d');
    new Chart(statusCtx, {
        type: 'doughnut',
        data: {
            labels: ['Pending', 'Paid', 'Overdue', 'Waived'],
            datasets: [{
                data: [
                    {{ $stats['pending_deadlines'] }},
                    {{ $stats['paid_deadlines'] }},
                    {{ $stats['overdue_deadlines'] }},
                    {{ $stats['waived_deadlines'] }}
                ],
                backgroundColor: [
                    '#ffc107',
                    '#28a745',
                    '#dc3545',
                    '#6c757d'
                ],
                borderWidth: 2,
                borderColor: '#fff'
            }]
        },
        options: {
            responsive: true,
            maintainAspectRatio: false,
            plugins: {
                legend: {
                    position: 'bottom'
                }
            }
        }
    });

    // Monthly Due Amounts Chart (placeholder - would need actual monthly data)
    const monthlyCtx = document.getElementById('monthlyChart').getContext('2d');
    new Chart(monthlyCtx, {
        type: 'bar',
        data: {
            labels: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun'],
            datasets: [{
                label: 'Amount Due',
                data: [12000, 19000, 15000, 25000, 22000, 30000],
                backgroundColor: 'rgba(54, 162, 235, 0.8)',
                borderColor: 'rgba(54, 162, 235, 1)',
                borderWidth: 1
            }]
        },
        options: {
            responsive: true,
            maintainAspectRatio: false,
            scales: {
                y: {
                    beginAtZero: true,
                    ticks: {
                        callback: function(value) {
                            return '$' + value.toLocaleString();
                        }
                    }
                }
            },
            plugins: {
                legend: {
                    display: false
                }
            }
        }
    });
});
</script>
@endsection