/* Temel Sıfırlamalar */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f7fa;
    color: #333;
    line-height: 1.6;
    padding: 20px 0;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* Başlıklar */
h1 {
    text-align: center;
    color: #007bff;
    margin-bottom: 5px;
}

.subtitle {
    text-align: center;
    color: #6c757d;
    margin-bottom: 30px;
}

/* Reklam Alanları */
.ad-area-top, .ad-area-inner {
    text-align: center;
    margin: 20px 0;
    padding: 15px;
    background-color: #e9ecef;
    border: 1px dashed #adb5bd;
    color: #495057;
    font-size: 0.9em;
}

/* Araç Seçenekleri */
.tool-options {
    text-align: center;
    margin-bottom: 30px;
}

.tool-btn {
    display: inline-block;
    padding: 10px 15px;
    margin: 5px;
    text-decoration: none;
    color: #007bff;
    background-color: #ffffff;
    border: 1px solid #007bff;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
}

.tool-btn:hover {
    background-color: #e9ecef;
}

.tool-btn.active {
    background-color: #007bff;
    color: white;
    border-color: #007bff;
}

/* Dönüştürücü Kutusu */
.converter-box {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
}

#tool-title {
    color: #495057;
    margin-bottom: 20px;
}

.drop-area {
    border: 3px dashed #ced4da;
    border-radius: 10px;
    padding: 60px 20px;
    cursor: pointer;
    transition: border-color 0.3s, background-color 0.3s;
}

.drop-area:hover {
    border-color: #007bff;
    background-color: #f8f9fa;
}

.drop-area .icon {
    font-size: 3em;
    display: block;
    margin-bottom: 15px;
    color: #6c757d;
}

.select-btn {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 5px;
    font-size: 1.1em;
    cursor: pointer;
    margin-top: 15px;
    transition: background-color 0.3s;
}

.select-btn:hover {
    background-color: #218838;
}

/* Yüklenen Dosya Listesi (Gizli Başlangıçta) */
.file-list {
    margin-top: 20px;
    text-align: left;
    border: 1px solid #dee2e6;
    padding: 15px;
    border-radius: 5px;
}

.file-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.file-item:last-child {
    border-bottom: none;
}

.file-name {
    font-weight: bold;
}

.file-size {
    color: #6c757d;
    font-size: 0.9em;
}

.convert-btn {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 5px;
    font-size: 1.2em;
    cursor: pointer;
    margin-top: 30px;
    width: 100%;
    transition: background-color 0.3s;
}

.convert-btn:hover {
    background-color: #0056b3;
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 50px;
    padding: 15px;
    border-top: 1px solid #e9ecef;
    color: #6c757d;
    font-size: 0.9em;
}

/* Mobil Uyumluluk */
@media (max-width: 600px) {
    .converter-box {
        padding: 20px;
    }

    .tool-btn {
        display: block;
        margin: 10px auto;
        width: 80%;
    }
}