body {
    font-family: 'Roboto', Arial, sans-serif;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    text-align: center;
    width: 450px;
}

header {
    margin-bottom: 20px;
}

.speech-bubble {
    background-color: #ffda44; /* Daha yumuşak sarı ton */
    color: #000;
    font-size: 22px;
    font-weight: 700;
    padding: 15px 20px;
    border-radius: 12px;
    position: relative;
    margin-bottom: 15px;
    text-transform: uppercase;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
    line-height: 1.4;
}

/* Konuşma balonunun üçgen kuyruğu */
.speech-bubble::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-top: 12px solid #ffda44;
}

.logo {
    width: 160px;
    margin-bottom: 20px;
}

label {
    display: block;
    margin: 12px 0 6px;
    font-weight: 600;
    color: #333;
}

input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 16px;
    box-sizing: border-box;
}

button {
    background-color: #d81e1e; /* Akbank kırmızısı */
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #b51717;
}

.error {
    color: #d81e1e;
    font-size: 14px;
    display: none;
    margin-top: 10px;
}

footer {
    margin-top: 20px;
    font-size: 12px;
    color: #555;
}

footer p {
    margin: 0;
}