/* Google Font */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(135deg, #ffffff, #ffffff);

}

/* Header */
header {
    width: 100%;
    text-align: center;
    background: rgba(12,12,12,255);
}

header h1 {
    font-size: 28px;
    color: #ffffff;
    padding: 0;
    margin: 0;
}


/* Banner */
.banner {
    margin: 0px;
    padding: 0px;
    width: 100%;
    overflow: hidden;
    display: flex;
}

.banner img {
    display: flex;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 400px;
    display: block;
}

/* Ana Form Kutusu */
.wrapper {
    width: 400px;
    background: white;
    padding: 30px;
    text-align: center;
}

/* Form Başlığı */
h2 {
    margin-bottom: 15px;
    color: #333;
}

/* İç Konteyner */
.form-container {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    box-shadow: inset 0px 2px 10px rgba(0, 0, 0, 0.05);
}

/* Input Kutuları */
.input-box {
    position: relative;
    margin-bottom: 20px;
}

.input-box input {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border: 2px solid #ddd;
    border-radius: 8px;
    outline: none;
    transition: 0.3s;
    background: white;
}

.input-box label {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #888;
    font-size: 14px;
    transition: 0.3s;
    pointer-events: none;
    background: white;
    padding: 0 5px;
}

/* Input Focus & Hover Efektleri */
.input-box input:focus,
.input-box input:valid {
    border-color: #4a90e2;
}

.input-box input:focus + label,
.input-box input:valid + label {
    top: 5px;
    font-size: 12px;
    color: #4a90e2;
}

/* Buton Tasarımı */
.btn {
    width: 100%;
    padding: 12px;
    border: none;
    background: #000000;
    color: white;
    font-size: 18px;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
    margin-top: 10px;
}

.btn:hover {
    background: #000000;
}

/* Responsive Tasarım */
@media (max-width: 450px) {
    .wrapper {
        width: 90%;
        padding: 20px;
    }
}