/* CSS Değişkenleri */
:root {
    --bg-color: #eef2f7;
    --header-text: #2c3e50;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);

    /* Footer */
    --footer-bg: #ffffff;
    --footer-text: #64748b;
    --footer-border: #e2e8f0;

    /* Kartlar (Aydınlık Mod) */
    --card-bg: #ffffff;
    --card-text: #333333;
    --card-border: #e2e8f0;
    --code-bg: #f1f5f9;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--header-text);
    margin: 0;
    padding: 0;
    overflow-y: auto;
    transition: background-color 0.3s ease;
}

/* Header */
header {
    text-align: center;
    padding: 15px 0;
}

header h1 {
    margin: 0;
    font-weight: 700;
    font-size: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.header-logo {
    height: 40px;
    width: auto;
    border-radius: 4px;
}

/* Ana Konteyner */
.main-container {
    display: flex;
    gap: 20px;
    padding: 0 20px;
    /* Ekranın %85'ini kaplasın, sabit kalsın */
    height: 85vh;
    box-sizing: border-box;
    margin-bottom: 40px;
}

/* Sol ve Sağ Paneller */
.left-panel,
.right-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    /* İçindekileri alt alta dizer */
    background: #ffffff !important;
    color: #333333 !important;
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid #ddd;

    /* Panel boyutu sabittir, panelin kendisi kaymaz */
    height: 100%;
    overflow: hidden;
    position: relative;
}

.right-panel {
    /* Sağ panelde önizleme uzun olabilir, o yüzden scroll açık */
    overflow-y: auto;
}

/* Textarea Ayarları - DÜZELTİLEN KISIM */
textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 15px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    box-sizing: border-box;
    font-size: 14px;
    background-color: #f8fafc;
    color: #333;
    outline: none;

    /* FLEXBOX BÜYÜSÜ: Kalan tüm alanı kapla */
    flex: 1;

    /* İçerik taşarsa textarea'nın kendisi scroll olsun */
    overflow-y: auto;
    resize: none;
    /* Elle çekip büyütmeyi kapat */
    display: block;
}

textarea:focus {
    border-color: var(--accent-color);
    background-color: #fff;
}

/* Butonlar */
.button-group {
    display: flex;
    gap: 10px;
    /* Butonlar asla büzüşmesin, sabit kalsın */
    flex-shrink: 0;
    margin-top: auto;
}

button.action-btn {
    flex: 1;
    padding: 12px;
    font-size: 14px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    border: none;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

#btn-sample {
    background-color: #f1f5f9;
    color: #475569;
}

#btn-sample:hover {
    background-color: #e2e8f0;
}

#btn-clear-cites {
    background-color: #ef4444;
    color: white;
}

#btn-clear-cites:hover {
    background-color: #dc2626;
}

#btn-preview {
    background-color: #475569;
    color: #fff;
}

#btn-preview:hover {
    background-color: #334155;
}

#btn-print {
    background-color: var(--accent-color);
    color: white;
}

#btn-print:hover {
    background-color: var(--accent-hover);
}

/* Önizleme Stilleri */
#preview-content {
    line-height: 1.7;
}

#preview-content h1,
#preview-content h2 {
    border-bottom: 1px solid #eee;
    padding-bottom: 5px;
}

/* Kod Blokları */
#preview-content pre {
    background-color: #f6f8fa;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    border: 1px solid #d0d7de;
    position: relative;
}

/* Dil belirtilmiş kod blokları — üst kısımda dil etiketi alanı için ekstra padding */
#preview-content pre:has(code[data-language]) {
    padding-top: 36px;
}

/* Dil Etiketi (C#, JavaScript vb.) — sadece data-language varsa göster */
#preview-content pre code[data-language]::before {
    content: attr(data-language);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    color: #57606a;
    background-color: #eff2f5;
    border-bottom: 1px solid #d0d7de;
    border-radius: 8px 8px 0 0;
    display: block;
}

#preview-content pre code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    line-height: 1.5;
    background: transparent;
    padding: 0;
}

/* Inline Code (backtick ile yazılan metin) */
#preview-content :not(pre)>code {
    background-color: rgba(175, 184, 193, 0.2);
    padding: 3px 7px;
    border-radius: 6px;
    color: #24292f;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875em;
    border: 1px solid rgba(175, 184, 193, 0.3);
    white-space: nowrap;
}

/* Highlight.js Renk Overrideleri — Referans Çıktıya Uygun */
#preview-content pre code .hljs-comment,
#preview-content pre code .hljs-quote {
    color: #008000;
    font-style: italic;
}

#preview-content pre code .hljs-keyword,
#preview-content pre code .hljs-selector-tag {
    color: #0000ff;
    font-weight: normal;
}

#preview-content pre code .hljs-type,
#preview-content pre code .hljs-built_in {
    color: #2b91af;
}

#preview-content pre code .hljs-string,
#preview-content pre code .hljs-doctag {
    color: #a31515;
}

#preview-content pre code .hljs-number {
    color: #098658;
}

#preview-content pre code .hljs-title {
    color: #795e26;
}

/* Blockquote (Alıntı) Düzeltmesi */
#preview-content blockquote {
    border-left: 5px solid #dfe2e5;
    padding-left: 15px;
    margin-left: 0;
    margin-right: 0;
    font-style: italic;
}

/* İpuçları ve FAQ Alanları */
.cheat-sheet-section,
.faq-section {
    padding: 40px 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 30px;
    color: var(--header-text);
    font-weight: 700;
}

.grid-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.cheat-card {
    background: var(--card-bg);
    color: var(--card-text);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow);
    flex: 1;
    min-width: 250px;
    max-width: 320px;
    box-sizing: border-box;
    transition: background 0.3s, color 0.3s;
}

.faq-card p {
    font-size: 0.9rem;
    line-height: 1.5;
    opacity: 0.9;
}

.cheat-card h3 {
    margin-top: 0;
    color: var(--accent-color);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cheat-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 4px;
}

.code-snippet {
    font-family: 'JetBrains Mono', monospace;
    background: var(--code-bg);
    color: #c7254e;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
}

/* Footer */
footer {
    background-color: var(--footer-bg);
    border-top: 1px solid var(--footer-border);
    padding: 25px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
    color: var(--footer-text);
}

.footer-left {
    font-weight: 500;
}

.footer-right {
    display: flex;
    align-items: center;
    gap: 5px;
}

.heart-icon {
    color: #06b6d4;
}

/* Scrollbar Özelleştirme */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Scrollbar üzerindeyken imleci normale (ok işaretine) çevirmeye çalışır */
::-webkit-scrollbar,
::-webkit-scrollbar-thumb,
::-webkit-scrollbar-track {
    cursor: default;
}

/* Yazdırma Ayarları */
@media print {

    .left-panel,
    header,
    .button-group,
    .cheat-sheet-section,
    .faq-section,
    footer {
        display: none !important;
    }

    body,
    .main-container {
        height: auto;
        overflow: visible;
        display: block;
        background: white;
    }

    .right-panel {
        width: 100%;
        height: auto;
        overflow: visible;
        border: none;
        box-shadow: none;
        padding: 0;
    }

    /* Syntax Highlighting Renklerini PDF'te Koru */
    #preview-content pre,
    #preview-content pre code,
    #preview-content code {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    /* Kod blokları PDF'te */
    #preview-content pre {
        background-color: #f6f8fa !important;
        border: 1px solid #d0d7de !important;
        border-radius: 8px !important;
        padding: 15px !important;
        page-break-inside: avoid;
        position: relative !important;
    }

    /* Dil belirtilmiş kod blokları — PDF'te üst padding */
    #preview-content pre:has(code[data-language]) {
        padding-top: 36px !important;
    }

    /* Dil etiketi PDF'te — sadece data-language varsa */
    #preview-content pre code[data-language]::before {
        background-color: #eff2f5 !important;
        border-bottom: 1px solid #d0d7de !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    /* Highlight.js Renkleri PDF'te Korunacak */
    .hljs-comment,
    .hljs-quote {
        color: #008000 !important;
        font-style: italic !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    .hljs-keyword,
    .hljs-selector-tag {
        color: #0000ff !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    .hljs-type,
    .hljs-built_in {
        color: #2b91af !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    .hljs-string,
    .hljs-doctag {
        color: #a31515 !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    .hljs-number,
    .hljs-literal {
        color: #098658 !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    .hljs-title {
        color: #795e26 !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    .hljs-variable,
    .hljs-template-variable {
        color: #e36209 !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    /* Inline code PDF'te */
    #preview-content :not(pre)>code {
        background-color: rgba(175, 184, 193, 0.2) !important;
        padding: 3px 7px !important;
        border-radius: 6px !important;
        color: #24292f !important;
        font-family: 'JetBrains Mono', monospace !important;
        font-size: 0.875em !important;
        border: 1px solid rgba(175, 184, 193, 0.3) !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    @page {
        margin: 15mm;
    }
}

/* Erişilebilirlik: Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}