body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header {
    background-color: #5c67f2;
    color: white;
    width: 100%;
    padding: 20px 0;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

main {
    width: 90%;
    max-width: 800px;
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.05);
}

/* CHILD VIEW STYLES */
.child-view #cabux_gosterge {
    text-align: center;
    background: linear-gradient(135deg, #ffde59, #ffab00);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(255, 171, 0, 0.3);
}

.child-view #cabux_gosterge h2 {
    margin: 0;
    font-size: 1.5em;
    color: #4b4b4b;
}

.child-view #kalan_cabux {
    font-size: 6em;
    font-weight: bold;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.child-view #harca_buton {
    width: 100%;
    padding: 25px;
    font-size: 1.5em;
    font-weight: bold;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
}

.child-view #harca_buton:hover:not(:disabled) {
    background-color: #45a049;
    transform: scale(1.02);
}

.child-view #harca_buton:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.child-view .mesaj {
    text-align: center;
    margin-top: 20px;
    font-size: 1.2em;
    font-weight: bold;
}

.child-view .plan-tablosu {
    margin-top: 40px;
    border-top: 2px solid #eee;
    padding-top: 20px;
}

.child-view #plan_listesi {
    list-style: none;
    padding: 0;
}

.child-view #plan_listesi li {
    background-color: #e6f7ff;
    padding: 10px 15px;
    border-radius: 5px;
    margin-bottom: 8px;
    font-size: 1.1em;
    border-left: 5px solid #007bff;
    transition: background-color 0.3s;
}

.child-view #plan_listesi li.used {
    background-color: #f1f1f1;
    color: #888;
    border-left: 5px solid #ccc;
    text-decoration: line-through;
}

/* ADMIN VIEW STYLES */
.admin-view {
    background-color: #e6f7ff;
}

.admin-view header {
    background-color: #007bff;
}

.admin-view .rapor-ozet p {
    font-size: 1.1em;
    padding: 5px 0;
}

.admin-view .grafik-alani {
    margin-top: 30px;
}

.admin-view table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.admin-view th, .admin-view td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

.admin-view th {
    background-color: #f2f2f2;
}

.admin-view tr:nth-child(even) {
    background-color: #f9f9f9;
}

.admin-view hr {
    margin: 20px 0;
    border: 0;
    border-top: 1px solid #ccc;
}

/* ŞİFRE YÖNETİMİ STİLLERİ (YENİ) */
.sifre-yonetimi {
    padding: 15px;
    border: 1px dashed #007bff;
    border-radius: 8px;
    margin-bottom: 20px;
}

.sifre-formu input {
    padding: 10px;
    margin-right: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    width: 150px;
}

.sifre-formu button {
    padding: 10px 15px;
    background-color: #ffc107;
    color: #333;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.sifre-formu button:hover {
    background-color: #ffae00;
}