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

body {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: black;
    background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(/image/xe14.jpg);
    background-size: cover;
    background-position: center;
}
.login-box {
    max-width: 400px;
    width: 100%;
    background: linear-gradient(to right,#0b3014,#0d110d);
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.4);
}
h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 10px;
}
.subtitle {
    color: #e5e7eb;
    text-align: center;
    margin-bottom: 32px;
    animation: apppear 3s ease-out;
}
.social-login {
    display: flex;
    justify-content: space-between;
    margin: 20px 0;
}

.social {
    width: 70px;
    height: 50px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 8px;
    font-size: 22px;
    cursor: pointer;
    transition: 0.3s;
}

.social:hover {
    background: #f1f1f1;
}

.google { color: #db4437; }
.facebook { color: #1877f2; }
.github { color: #000; }

.field {
    position: relative;
    margin-bottom: 24px;
}
.field input {
    width: 100%;
    height: 40px;
    background: transparent;
    border: none;
    border-bottom: 2px solid #e5e7eb;
    color : #fff;
    font-size: 16px;
    outline: none;
}
.field label{
    position: absolute;
    left: 0;
    top: 10px;
    color:#d1d5db;
    font-size: 16px;
    pointer-events:none;
    transition:0.3s;
}
.field input:focus {
    border-bottom-color:#fff;
}
.field input:focus + label,
.field input:valid + label {
    top: -14px;
    font-size: 13px;
    color: #fff;
}
.options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 14px;
    color: #e5e7eb;
}
.options a {
    color: #e5e7eb;
    text-decoration: none;
}
.options a:hover {
    text-decoration: underline;
}
.options input {
    margin-right: 6px;
}
button {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 8px;
    background-color: #2f2e31;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
}
botton:hover {
    background-color: #045a28;
}
.signup {
    margin-top: 24px;
    text-align: center;
    font-size: 14px;
    color: #ddd6fe;
}
.signup a {
    color: #ddd6fe;
    text-decoration: none;
}
.signup a:hover {
    text-decoration: underline;
}