@extends('layouts.site')

@section('content')
<link href="https://fonts.googleapis.com/css2?family=Cinzel:wght@500;700;800;900&family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,500;0,700;1,400&display=swap" rel="stylesheet">

@if($application->status === 'accepted')
<div class="bg-slate-100 py-12 no-print">
    <div class="container max-w-6xl mx-auto px-4">
        <!-- Verification Banner (e-Devlet Style) -->
        <div class="bg-emerald-50 border-l-4 border-emerald-500 p-4 rounded-xl shadow-sm mb-6 flex flex-col lg:flex-row lg:items-center justify-between gap-4">
            <div class="flex items-center gap-3 flex-1 min-w-0">
                <div class="w-10 h-10 rounded-full bg-emerald-500 text-white flex items-center justify-center flex-shrink-0 shadow-md shadow-emerald-500/10">
                    <i class="uil uil-shield-check text-xl"></i>
                </div>
                <div class="text-sm leading-normal">
                    <span class="font-bold text-slate-800">Güvenli Belge Doğrulama:</span>
                    <span class="text-slate-600 ml-1">Bu staj sertifikası ve transkripti, Trunçgil Teknopark sistemi üzerinden dijital olarak imzalanıp onaylanmıştır.</span>
                </div>
            </div>
            <div class="flex-shrink-0">
                <!-- PDF Download Button -->
                <button onclick="downloadPDF()" id="pdf-btn" class="px-4 py-2 bg-orange-600 hover:bg-orange-700 text-white text-sm font-bold rounded-lg transition-all shadow-sm flex items-center gap-1.5 whitespace-nowrap">
                    <i class="uil uil-file-download text-base" id="pdf-icon"></i>
                    <span class="spinner-border spinner-border-sm hidden animate-spin w-3.5 h-3.5 border-2 border-white border-t-transparent rounded-full" id="pdf-spinner" role="status"></span>
            </div>
        </div>

    </div>
</div>

<!-- Printable Area -->
<div class="print-container bg-slate-100 py-6 min-h-screen">
    <div class="container max-w-6xl mx-auto px-4 pb-20 space-y-12">
        
        <!-- ================= PAGE 1: CERTIFICATE (LANDSCAPE A4) ================= -->
        <div class="certificate-container-wrapper overflow-hidden w-full flex justify-center items-start">
            <div id="certificate-node" class="certificate-page bg-white rounded-[2rem] shadow-2xl p-12 relative overflow-hidden page-break mx-auto">
                
                <!-- Watermark Logo -->
                <div class="absolute inset-0 flex items-center justify-center pointer-events-none z-0 opacity-[0.05]">
                    <img src="{{ asset('logos/truncgil-dikey.svg') }}" class="w-[300px] h-[300px] object-contain">
                </div>

                <!-- Thin Minimal Orange/Slate Inner Border -->

                <div class="relative z-10 flex flex-col justify-between h-full min-h-[580px] md:min-h-[540px]">
                    
                    <!-- Logo & Header -->
                    <div class="relative flex justify-between items-center w-full min-h-[64px]">
                        <div class="w-1/3"></div>
                        <div class="w-1/3 flex justify-center">
                            <img src="{{ asset('logos/truncgil-yatay.svg') }}" alt="Trunçgil Teknoloji" class="h-16 md:h-20 object-contain">
                        </div>
                        <div class="w-1/3 text-right">
                            <span class="text-[10px] font-bold text-slate-400 tracking-widest block">VERİFİKASYON NO</span>
                            <span class="text-xs font-mono font-bold text-slate-800">{{ $application->certificate_code }}</span>
                        </div>
                    </div>

                    <!-- Main Content -->
                    <div class="text-center my-auto px-4">
                        <h1 class="font-cinzel text-3xl md:text-5xl text-slate-900 mt-8 mb-2" style="font-weight: 900; letter-spacing: 0.04em;">STAJ BİTİRME<br>SERTİFİKASI</h1>

                        <p class="text-slate-400 text-xs md:text-sm tracking-wider mb-0">SAYIN</p>
                        <h2 class="font-cinzel text-2xl md:text-4xl font-extrabold text-slate-900 tracking-wide mb-6 mt-0">{{ $application->name }}</h2>

                        <div class="max-w-3xl mx-auto text-slate-700 leading-relaxed text-sm md:text-base space-y-4">
                            <p>
                                <strong>{{ \Carbon\Carbon::parse($application->internship_start_date)->format('d.m.Y') }}</strong> - 
                                <strong>{{ \Carbon\Carbon::parse($application->internship_end_date)->format('d.m.Y') }}</strong> tarihleri arasında, 
                                <strong>Trunçgil Teknoloji</strong> bünyesinde gerçekleştirdiği uzaktan staj programını başarıyla tamamlayarak bu belgeyi almaya hak kazanmıştır.
                            </p>
                            <p class="text-xs md:text-sm text-slate-500 max-w-2xl mx-auto italic font-serif">
                                Gösterdiği üstün gayret, sorumluluk bilinci, teknik beceriler ve ekip çalışmasına sağladığı değerli katkılardan dolayı teşekkür eder, profesyonel kariyerinde başarılar dileriz.
                            </p>
                        </div>
                    </div>

                    <!-- Footer Section (Signatures & Verification QR) -->
                    <div class="grid grid-cols-3 items-end pt-6 border-t border-slate-100/50">
                        <!-- Left: QR Code -->
                        <div class="flex items-center gap-4">
                            <img src="https://api.qrserver.com/v1/create-qr-code/?size=150x150&data={{ urlencode(route('internship.verify', $application->certificate_code)) }}" alt="QR Code" class="w-28 h-28 border border-slate-200 p-1 rounded-xl bg-white shadow-sm">
                            <div class="text-left hidden sm:block">
                                <span class="text-[8px] font-bold text-slate-400 tracking-wider block">DİJİTAL DOĞRULAMA</span>
                                <span class="text-[9px] text-slate-500 block">Karekod okutularak belgenin güncelliği doğrulanabilir.</span>
                            </div>
                        </div>

                        <!-- Middle: Date -->
                        <div class="text-center">
                            <span class="text-[9px] text-slate-600 block tracking-wider text-glow-white font-semibold">DÜZENLENME TARİHİ</span>
                            <span class="text-xs font-bold text-slate-800 text-glow-white">{{ \Carbon\Carbon::parse($application->internship_end_date)->format('d.m.Y') }}</span>
                        </div>

                      
                    </div>
                </div>
            </div>
        </div>

        <!-- ================= PAGE 2: TRANSCRIPT (PORTRAIT A4) ================= -->
        <div class="transcript-container-wrapper overflow-hidden w-full flex justify-center items-start">
            <div id="transcript-node" class="transcript-page bg-white rounded-[2rem] shadow-2xl p-6 md:p-8 relative overflow-hidden mx-auto">
                
                <!-- Thin border decor for transcript -->
                <div class="absolute inset-4 border border-slate-100 rounded-[1.5rem] pointer-events-none"></div>

                <div class="relative z-10 flex flex-col justify-between h-full text-slate-700">
                    <div>
                        <!-- Header -->
                        <div class="flex justify-between items-center pb-2 border-b border-slate-100 mb-3">
                            <div>
                                <h2 class="font-serif font-bold text-slate-900 transcript-header-title">STAJ AKADEMİK TRANSKRİPTİ</h2>
                                <p class="text-slate-400 tracking-wider mt-0.5 transcript-header-subtitle">VE PERFORMANS DEĞERLENDİRME RAPORU</p>
                            </div>
                            <img src="{{ asset('logos/truncgil-yatay.svg') }}" alt="Trunçgil Logo" class="h-6 object-contain">
                        </div>

                        <!-- Student Info block -->
                        <div class="bg-slate-50 rounded-xl p-2.5 border border-slate-100 mb-3">
                            <h3 class="font-bold text-slate-400 tracking-widest mb-1.5 student-info-title">ÖĞRENCİ / STAJYER BİLGİLERİ</h3>
                            <div class="grid grid-cols-1 md:grid-cols-2 gap-y-1 gap-x-8 student-info-grid">
                                <div class="flex justify-between border-b border-slate-200/50 pb-1">
                                    <span class="text-slate-500">Adı Soyadı:</span>
                                    <strong class="text-slate-800">{{ $application->name }}</strong>
                                </div>
                                <div class="flex justify-between border-b border-slate-200/50 pb-1">
                                    <span class="text-slate-500">E-Posta Adresi:</span>
                                    <strong class="text-slate-800">{{ $application->email }}</strong>
                                </div>
                                <div class="flex justify-between border-b border-slate-200/50 pb-1">
                                    <span class="text-slate-500">Staj Dönemi:</span>
                                    <strong class="text-slate-800">{{ \Carbon\Carbon::parse($application->internship_start_date)->format('d.m.Y') }} - {{ \Carbon\Carbon::parse($application->internship_end_date)->format('d.m.Y') }}</strong>
                                </div>
                                <div class="flex justify-between border-b border-slate-200/50 pb-1">
                                    <span class="text-slate-500">Toplam Staj Süresi:</span>
                                    <strong class="text-slate-800">{{ $application->internship_total_days }} İş Günü</strong>
                                </div>
                            </div>
                        </div>

                        <!-- Dynamic Markdown Content (Transcript and marks) -->
                        <div class="prose max-w-none text-slate-700 leading-relaxed mb-3">
                            {!! new \Illuminate\Support\HtmlString(\Illuminate\Support\Str::markdown($application->transcript_markdown ?? '')) !!}
                        </div>
                    </div>

                    <!-- Footer with verification details -->
                    <div class="w-full flex justify-between items-center pt-2 border-t border-slate-100 gap-4 mt-auto">
                        <div class="flex items-center gap-3">
                            <img src="https://api.qrserver.com/v1/create-qr-code/?size=120x120&data={{ urlencode(route('internship.verify', $application->certificate_code)) }}" alt="QR Code" class="w-14 h-14 border border-slate-200 p-0.5 rounded-lg bg-white">
                            <div>
                                <span class="font-bold text-slate-400 tracking-wider block verify-code-label">GÜVENLİ DOĞRULAMA KODU</span>
                                <span class="font-mono font-bold text-slate-800 block verify-code">{{ $application->certificate_code }}</span>
                            </div>
                        </div>
                        <div class="text-right text-slate-400 footer-address">
                            Trunçgil Teknoloji San. ve Tic. Ltd. Şti.<br>
                            Gaziantep Üniversitesi Teknopark No: 4A
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <!-- ================= PAGE 3: STAJ DEFTERİ (PORTRAIT A4) ================= -->
        @if($application->notebook_approved || $application->notebook_supervisor_signed || $application->notebook_unit_signed)
        <div class="notebook-container-wrapper overflow-hidden w-full flex justify-center items-start mt-8">
            <div id="notebook-node" class="transcript-page bg-white rounded-[2rem] shadow-2xl p-6 md:p-8 relative overflow-hidden mx-auto">
                
                <!-- Thin border decor for notebook -->
                <div class="absolute inset-4 border border-slate-100 rounded-[1.5rem] pointer-events-none"></div>

                <div class="relative z-10 flex flex-col justify-between h-full text-slate-700">
                    <div>
                        <!-- Header -->
                        <div class="flex justify-between items-center pb-2 border-b border-slate-100 mb-3">
                            <div>
                                <h2 class="font-serif font-bold text-slate-900 transcript-header-title">ONAYLI STAJ DEFTERİ RAPORU</h2>
                                <p class="text-slate-400 tracking-wider mt-0.5 transcript-header-subtitle">DİJİTAL İMZALI VE ONAYLI STAJ RAPORLARI</p>
                            </div>
                            <img src="{{ asset('logos/truncgil-yatay.svg') }}" alt="Trunçgil Logo" class="h-6 object-contain">
                        </div>

                        <!-- Signatures Information -->
                        <div class="bg-emerald-50 border border-emerald-200 rounded-xl p-3 mb-4 flex justify-between items-center">
                            <div>
                                <span class="text-xs font-extrabold text-emerald-800 uppercase block tracking-wider">Dijital İmza Durumu</span>
                                <span class="text-[10px] text-emerald-600 font-semibold block mt-0.5">Bu staj defteri yetkililer tarafından elektronik olarak imzalanmıştır.</span>
                            </div>
                            <div class="flex gap-2">
                                @if($application->notebook_supervisor_signed)
                                <span class="inline-flex px-2 py-1 rounded bg-emerald-100 text-emerald-800 text-[8px] font-extrabold uppercase border border-emerald-200">
                                    Sorumlu: {{ $application->notebook_supervisor_name ?: 'Alperen Trunç' }}
                                </span>
                                @endif
                                @if($application->notebook_unit_signed)
                                <span class="inline-flex px-2 py-1 rounded bg-emerald-100 text-emerald-800 text-[8px] font-extrabold uppercase border border-emerald-200">
                                    Yetkili: {{ $application->notebook_unit_name ?: 'Birim Yetkilisi' }}
                                </span>
                                @endif
                            </div>
                        </div>

                        <!-- Notebook Days content overview -->
                        <div class="overflow-y-auto max-h-[700px] pr-2 no-scrollbar space-y-4">
                            @foreach($days as $day)
                                @php
                                    $entry = $savedEntries->get($day['day_number']);
                                @endphp
                                @if($entry && trim($entry->content))
                                <div class="p-3 bg-slate-50 border border-slate-100 rounded-xl">
                                    <div class="flex justify-between items-center pb-1.5 border-b border-slate-200/50 mb-1.5">
                                        <span class="text-xs font-extrabold text-slate-800">{{ $day['day_number'] }}. Gün Raporu</span>
                                        <span class="text-[10px] text-slate-400 font-bold">{{ $day['formatted_date'] }}</span>
                                    </div>
                                    <div class="text-xs text-slate-600 leading-relaxed verify-log-content" style="font-size: 11px;">{!! $entry->content !!}</div>
                                </div>
                                @endif
                            @endforeach
                        </div>
                    </div>

                    <!-- Footer -->
                    <div class="w-full flex justify-between items-center pt-2 border-t border-slate-100 gap-4 mt-auto">
                        <div class="flex items-center gap-3">
                            <img src="https://api.qrserver.com/v1/create-qr-code/?size=120x120&data={{ urlencode(route('internship.verify', $application->certificate_code)) }}" alt="QR Code" class="w-14 h-14 border border-slate-200 p-0.5 rounded-lg bg-white">
                            <div>
                                <span class="font-bold text-slate-400 tracking-wider block verify-code-label">GÜVENLİ DOĞRULAMA KODU</span>
                                <span class="font-mono font-bold text-slate-800 block verify-code">{{ $application->certificate_code }}</span>
                            </div>
                        </div>
                        <div class="text-right text-slate-400 footer-address">
                            Trunçgil Teknoloji San. ve Tic. Ltd. Şti.<br>
                            Gaziantep Üniversitesi Teknopark No: 4A
                        </div>
                    </div>
                </div>
            </div>
        </div>
        @endif

    </div>
</div>
@else
    <div class="min-h-screen bg-slate-100 flex items-center justify-center p-6 no-print">
        <div class="bg-white rounded-3xl p-8 max-w-md w-full shadow-2xl border border-slate-100 text-center">
            <div class="w-16 h-16 rounded-full bg-red-50 text-[#e31e24] flex items-center justify-center text-3xl mx-auto mb-4">
                <i class="uil uil-exclamation-triangle"></i>
            </div>
            <h1 class="text-xl font-bold text-slate-800">Doğrulanamayan Belge</h1>
            <p class="text-xs text-slate-500 mt-2 leading-relaxed">Görüntülemeye çalıştığınız staj kaydı henüz onaylanmamıştır veya aktif değildir. Detaylı bilgi için kurum yetkilileri ile iletişime geçebilirsiniz.</p>
            <a href="/" class="mt-6 inline-flex px-5 py-2.5 bg-slate-800 hover:bg-slate-900 text-white font-bold rounded-xl text-xs transition-all shadow-md">Anasayfaya Dön</a>
        </div>
    </div>
@endif

@push('styles')
<script src="https://cdn.tailwindcss.com"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.4.1/html2canvas.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js"></script>
<style>
    :root {
        /* Global scale factor for transcript page fonts. Adjust this easily (e.g. 1.0, 1.10, 1.20) */
        --transcript-font-scale: 1.30;
    }
    .verify-log-content ul {
        list-style-type: disc !important;
        padding-left: 18px !important;
        margin-top: 5px !important;
        margin-bottom: 5px !important;
    }
    .verify-log-content ol {
        list-style-type: decimal !important;
        padding-left: 18px !important;
        margin-top: 5px !important;
        margin-bottom: 5px !important;
    }
    .verify-log-content li {
        margin-bottom: 3px !important;
    }

    body {
        font-family: 'Inter', sans-serif;
    }
    .font-serif {
        font-family: 'Cinzel', 'Playfair Display', Georgia, serif;
    }
    .font-cinzel {
        font-family: 'Cinzel', serif !important;
    }

    .text-glow-white {
        text-shadow: 0 0 10px #ffffff, 0 0 6px #ffffff, 0 0 3px #ffffff;
    }

    /* Transcript typography helpers scaled globally */
    .transcript-header-title {
        font-size: calc(0.875rem * var(--transcript-font-scale)) !important;
    }
    .transcript-header-subtitle {
        font-size: calc(7px * var(--transcript-font-scale)) !important;
    }
    .student-info-title {
        font-size: calc(7.5px * var(--transcript-font-scale)) !important;
    }
    .student-info-grid {
        font-size: calc(8.5px * var(--transcript-font-scale)) !important;
    }
    .verify-code-label {
        font-size: calc(6.5px * var(--transcript-font-scale)) !important;
    }
    .verify-code {
        font-size: calc(9px * var(--transcript-font-scale)) !important;
    }
    .footer-address {
        font-size: calc(7.5px * var(--transcript-font-scale)) !important;
    }

    /* Screen display aspect styling */
    .certificate-page {
        width: 1122px;
        min-height: 794px;
        box-sizing: border-box;
        background-image: url('{{ asset("assets/img/cert_bg_futuristic.png") }}');
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        background-color: #ffffff;
    }
    .transcript-page {
        width: 794px;
        height: 1122px;
        box-sizing: border-box;
    }
    
    /* Elegant Markdown Table Styling inside prose (Reduced font sizes & paddings) */
    .prose table {
        width: 100%;
        margin-top: 0.35rem !important;
        margin-bottom: 0.35rem !important;
        border-collapse: collapse;
        text-align: left;
    }
    .prose th {
        font-weight: 700;
        padding: 0.2rem 0.35rem !important;
        background-color: #f8fafc;
        border-bottom: 2px solid #e2e8f0;
        color: #1e293b;
        font-size: calc(0.45rem * var(--transcript-font-scale)) !important;
        text-transform: uppercase;
        letter-spacing: 0.05em;
    }
    .prose td {
        padding: 0.2rem 0.35rem !important;
        border-bottom: 1px solid #e2e8f0;
        color: #334155;
        font-size: calc(0.45rem * var(--transcript-font-scale)) !important;
        line-height: 1.2 !important;
    }
    .prose tr:hover {
        background-color: #f8fafc;
    }
    .prose h3 {
        font-family: 'Cinzel', serif;
        color: #0f172a;
        margin-top: 0.5rem !important;
        margin-bottom: 0.25rem !important;
        border-bottom: 1px solid #e2e8f0;
        padding-bottom: 0.15rem;
        font-weight: 700;
        font-size: calc(0.6rem * var(--transcript-font-scale)) !important;
    }
    .prose h4 {
        color: #1e293b;
        margin-top: 0.4rem !important;
        margin-bottom: 0.2rem !important;
        font-weight: 600;
        font-size: calc(0.52rem * var(--transcript-font-scale)) !important;
    }
    .prose p {
        font-size: calc(0.45rem * var(--transcript-font-scale)) !important;
        line-height: 1.3 !important;
        margin-top: 0.15rem !important;
        margin-bottom: 0.2rem !important;
    }
    .prose ul {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.1rem 0.75rem;
        padding-left: 0 !important;
        margin-top: 0.25rem !important;
        margin-bottom: 0.25rem !important;
        list-style-type: none !important;
    }
    .prose ul li {
        font-size: calc(0.45rem * var(--transcript-font-scale)) !important;
        line-height: 1.3 !important;
        margin: 0 !important;
        position: relative;
        padding-left: 0.5rem !important;
    }
    .prose ul li::before {
        content: "•";
        color: #f97316;
        position: absolute;
        left: 0;
        top: 0;
        font-weight: bold;
    }
    .prose blockquote {
        border-left: 2px solid #f97316;
        padding-left: 0.4rem !important;
        font-style: italic;
        color: #475569;
        margin: 0.4rem 0 !important;
        font-size: calc(0.45rem * var(--transcript-font-scale)) !important;
    }

    /* Print media config for mixed Landscape & Portrait */
    @media print {
        @page {
            margin: 0;
        }
        
        @page landscape-page {
            size: A4 landscape;
        }
        
        @page portrait-page {
            size: A4 portrait;
        }

        body, html {
            background-color: #ffffff !important;
            margin: 0 !important;
            padding: 0 !important;
        }

        .no-print, header, footer, nav, .site-header, .site-footer {
            display: none !important;
        }

        .print-container {
            position: absolute;
            left: 0;
            top: 0;
            width: 100% !important;
            padding: 0 !important;
            margin: 0 !important;
            background-color: transparent !important;
        }

        .certificate-container-wrapper, .transcript-container-wrapper {
            height: auto !important;
            overflow: visible !important;
        }

        .certificate-page {
            page: landscape-page;
            transform: none !important;
            width: 297mm !important;
            height: 210mm !important;
            min-height: 210mm !important;
            margin: 0 !important;
            padding: 15mm !important;
            box-shadow: none !important;
            border: none !important;
            border-radius: 0 !important;
            box-sizing: border-box !important;
            page-break-after: always !important;
            break-after: page !important;
            background-image: url('{{ asset("assets/img/cert_bg_futuristic.png") }}') !important;
            background-size: cover !important;
            background-position: center !important;
            background-repeat: no-repeat !important;
            background-color: #ffffff !important;
            -webkit-print-color-adjust: exact;
            print-color-adjust: exact;
        }

        .transcript-page {
            page: portrait-page;
            transform: none !important;
            width: 210mm !important;
            height: 297mm !important;
            min-height: 297mm !important;
            margin: 0 !important;
            padding: 10mm !important;
            box-shadow: none !important;
            border: none !important;
            border-radius: 0 !important;
            box-sizing: border-box !important;
            overflow: hidden !important;
        }
    }
</style>
@endpush

@push('scripts')
<script>
    function scaleDocument(wrapperSelector, nodeSelector, baseWidth, baseHeight) {
        const wrapper = document.querySelector(wrapperSelector);
        const node = document.querySelector(nodeSelector);
        if (!wrapper || !node) return;
        
        const containerWidth = wrapper.offsetWidth;
        if (containerWidth < baseWidth) {
            const scale = containerWidth / baseWidth;
            node.style.transform = `scale(${scale})`;
            node.style.transformOrigin = 'top center';
            node.style.width = `${baseWidth}px`;
            node.style.minWidth = `${baseWidth}px`;
            node.style.height = `${baseHeight}px`;
            node.style.minHeight = `${baseHeight}px`;
            wrapper.style.height = `${baseHeight * scale}px`;
        } else {
            node.style.transform = '';
            node.style.transformOrigin = '';
            node.style.width = '';
            node.style.minWidth = '';
            node.style.height = '';
            node.style.minHeight = '';
            wrapper.style.height = '';
        }
    }
    
    function scaleAllDocuments() {
        scaleDocument('.certificate-container-wrapper', '#certificate-node', 1122, 794);
        scaleDocument('.transcript-container-wrapper', '#transcript-node', 794, 1122);
        scaleDocument('.notebook-container-wrapper', '#notebook-node', 794, 1122);
    }
    
    window.addEventListener('resize', scaleAllDocuments);
    window.addEventListener('DOMContentLoaded', scaleAllDocuments);
    window.addEventListener('load', scaleAllDocuments);
    
    // Immediate and delayed triggers to ensure correct measurement after image & stylesheet loading
    scaleAllDocuments();
    setTimeout(scaleAllDocuments, 100);
    setTimeout(scaleAllDocuments, 500);
    setTimeout(scaleAllDocuments, 1500);

    async function downloadPDF() {
        const btn = document.getElementById('pdf-btn');
        const icon = document.getElementById('pdf-icon');
        const spinner = document.getElementById('pdf-spinner');
        const btnText = document.getElementById('pdf-btn-text');

        // Show spinner
        btn.disabled = true;
        icon.classList.add('hidden');
        spinner.classList.remove('hidden');
        btnText.textContent = "PDF Hazırlanıyor...";

        try {
            const { jsPDF } = window.jspdf;
            
            const certEl = document.getElementById('certificate-node');
            const transEl = document.getElementById('transcript-node');
            const notebookEl = document.getElementById('notebook-node');
 
            // Force elements to normal scale prior to capturing for PDF
            const origCertTransform = certEl.style.transform;
            const origCertWidth = certEl.style.width;
            const origCertHeight = certEl.style.height;
            const origCertRadius = certEl.style.borderRadius;
            const origTransTransform = transEl.style.transform;
            const origTransWidth = transEl.style.width;
            const origTransHeight = transEl.style.height;
            const origTransRadius = transEl.style.borderRadius;
            
            let origNotebookTransform, origNotebookWidth, origNotebookHeight, origNotebookRadius;
            if (notebookEl) {
                origNotebookTransform = notebookEl.style.transform;
                origNotebookWidth = notebookEl.style.width;
                origNotebookHeight = notebookEl.style.height;
                origNotebookRadius = notebookEl.style.borderRadius;
                
                notebookEl.style.transform = 'none';
                notebookEl.style.width = '794px';
                notebookEl.style.height = '1122px';
                notebookEl.style.borderRadius = '0';
            }
 
            certEl.style.transform = 'none';
            certEl.style.width = '1122px';
            certEl.style.height = '794px';
            certEl.style.borderRadius = '0';
            transEl.style.transform = 'none';
            transEl.style.width = '794px';
            transEl.style.height = '1122px';
            transEl.style.borderRadius = '0';
 
            // Render Page 1 (Landscape)
            const certCanvas = await html2canvas(certEl, {
                scale: 2,
                useCORS: true,
                backgroundColor: '#ffffff',
                logging: false
            });
            const certImgData = certCanvas.toDataURL('image/jpeg', 1.0);
 
            // Initialize landscape A4 document
            const pdf = new jsPDF({
                orientation: 'landscape',
                unit: 'mm',
                format: 'a4'
            });
            pdf.addImage(certImgData, 'JPEG', 0, 0, 297, 210);
 
            // Render Page 2 (Portrait)
            const transCanvas = await html2canvas(transEl, {
                scale: 2,
                useCORS: true,
                backgroundColor: '#ffffff',
                logging: false
            });
            const transImgData = transCanvas.toDataURL('image/jpeg', 1.0);
 
            // Calculate exact height using aspect ratio to prevent vertical squishing
            const transWidth = 210;
            const transHeight = (transCanvas.height * transWidth) / transCanvas.width;
 
            // Add portrait page to PDF
            pdf.addPage('a4', 'portrait');
            pdf.addImage(transImgData, 'JPEG', 0, 0, transWidth, transHeight);
            
            // Render Page 3 (Notebook) if it exists
            if (notebookEl) {
                const notebookCanvas = await html2canvas(notebookEl, {
                    scale: 2,
                    useCORS: true,
                    backgroundColor: '#ffffff',
                    logging: false
                });
                const notebookImgData = notebookCanvas.toDataURL('image/jpeg', 1.0);
                const notebookHeight = (notebookCanvas.height * transWidth) / notebookCanvas.width;
                
                pdf.addPage('a4', 'portrait');
                pdf.addImage(notebookImgData, 'JPEG', 0, 0, transWidth, notebookHeight);
            }
 
            // Restore styles
            certEl.style.transform = origCertTransform;
            certEl.style.width = origCertWidth;
            certEl.style.height = origCertHeight;
            certEl.style.borderRadius = origCertRadius;
            transEl.style.transform = origTransTransform;
            transEl.style.width = origTransWidth;
            transEl.style.height = origTransHeight;
            transEl.style.borderRadius = origTransRadius;
            
            if (notebookEl) {
                notebookEl.style.transform = origNotebookTransform;
                notebookEl.style.width = origNotebookWidth;
                notebookEl.style.height = origNotebookHeight;
                notebookEl.style.borderRadius = origNotebookRadius;
            }
 
            // Trigger Save File
            pdf.save('{{ str()->slug($application->name) }}-staj-belgesi.pdf');

        } catch (error) {
            console.error("PDF generation failed", error);
            alert("PDF oluşturulurken bir hata meydana geldi.");
        } finally {
            // Restore button
            btn.disabled = false;
            icon.classList.remove('hidden');
            spinner.classList.add('hidden');
            btnText.textContent = "PDF Olarak İndir";
        }
    }
</script>
@endpush
@endsection