/* Google Fonts: Montserrat (Başlık) ve Fira Code (Kod/Vurgu) */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&family=Fira+Code:wght@300;500&display=swap');

/* Reset ve Genel Stiller */
body {
    font-family: 'Montserrat', sans-serif;
    color: #E0E0E0; /* Açık Gri metin */
    background-color: #121212; /* Koyu arka plan */
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    box-sizing: border-box;
    /* Hafif bir kod efekti için degrade arka plan (opsiyonel) */
    background: linear-gradient(135deg, #121212 0%, #1a1a2e 100%);
}

.splash-container {
    max-width: 900px;
    width: 100%;
    padding: 30px 40px;
    border-radius: 12px;
    background-color: #1e1e1e; /* İçerik kutusu rengi */
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid #333;
}

/* Header ve Navigasyon */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    border-bottom: 1px solid #333;
    padding-bottom: 20px;
}

.logo-area {
    display: flex;
    align-items: center;
}

.logo-pb {
    font-size: 3.5rem;
    font-weight: 700;
    color: #4CAF50; /* Yazılım temalı yeşil */
    margin-right: 15px;
    line-height: 1;
    font-family: 'Fira Code', monospace; /* PB için daha "kodsal" bir font */
}

.logo-text {
    line-height: 1.2;
}

.polat {
    font-size: 1.5rem;
    font-weight: 400;
    text-transform: uppercase;
}

.bilisim {
    font-size: 1.5rem;
    font-weight: 700;
    color: #4CAF50;
    text-transform: uppercase;
}

.slogan {
    display: block;
    font-size: 0.8rem;
    color: #9E9E9E;
    letter-spacing: 2px;
}

.nav-link {
    text-decoration: none;
    color: #4CAF50;
    font-weight: 600;
    padding: 10px 15px;
    border: 2px solid #4CAF50;
    border-radius: 6px;
    transition: background-color 0.3s, color 0.3s;
}

.nav-link:hover {
    background-color: #4CAF50;
    color: #1e1e1e;
}

/* İçerik Alanı */
.content-area {
    margin-bottom: 40px;
}

.main-title {
    font-size: 2.2rem;
    color: #E0E0E0;
    margin-bottom: 20px;
    border-left: 5px solid #03A9F4; /* Mavi vurgu */
    padding-left: 15px;
}

.intro-text {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 30px;
    color: #BDBDBD;
}

/* Details/Daha Fazla Oku Alanı */
.more-info {
    border: 1px dashed #333;
    padding: 15px;
    border-radius: 8px;
    background-color: #252525;
}

.more-info summary {
    font-weight: 700;
    color: #03A9F4;
    cursor: pointer;
    list-style: none;
    display: block;
}

.more-info summary::before {
    content: '▶ ';
    color: #03A9F4;
    font-size: 0.8em;
    display: inline-block;
    margin-right: 5px;
    transition: transform 0.2s;
}

.more-info[open] summary::before {
    content: '▼ ';
}

.more-info p {
    font-size: 0.95rem;
    line-height: 1.5;
    margin-top: 15px;
    color: #9E9E9E;
}

.code-bracket {
    font-family: 'Fira Code', monospace;
    font-weight: 500;
    color: #FBC02D; /* Sarı vurgu */
    margin-left: 5px;
}

/* Footer ve Destek Alanı */
.footer-support {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid #333;
}

.support-link {
    font-size: 0.9rem;
    text-decoration: none;
    color: #FF9800; /* Turuncu vurgu */
    font-weight: 500;
    transition: color 0.3s;
}

.support-link:hover {
    color: #FFFFFF;
}

.iframe-wrapper {
    width: 71px; /* Kutu boyutu */
    height: 68px; /* Kutu boyutu */
    overflow: hidden; 
    position: relative; 
    border-radius: 9px;
    opacity: 0.7;
    transition: opacity 0.3s;
    border: 2px solid #03A9F4; /* Mavi Çerçeve */
    box-sizing: border-box;
}

.iframe-wrapper:hover {
    opacity: 1;
}

.iframe-wrapper iframe {
    /* KIRPMA İÇİN BÜYÜK BOYUT ŞART! */
    width: 200px; 
    height: 200px;
    border: none;
    position: absolute;
    
    /* LOGOYU ORTALAMA VE BOŞLUĞU KIRPMA İÇİN YENİ HASSAS DEĞERLER */
    left: -18px;  /* Tahmini orta nokta */
    top: -17px;   /* Tahmini orta nokta */
}

@media (max-width: 600px) {
    .header {
        flex-direction: column;
        text-align: center;
    }
    .logo-area {
        margin-bottom: 15px;
    }
    .main-title {
        font-size: 1.8rem;
    }
    .footer-support {
        flex-direction: column;
    }
    .support-link {
        margin-bottom: 10px;
    }
}