body {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 20px 0;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect fill="rgba(50,50,50,0.1)" x="0" y="0" width="100" height="100"/><path d="M0 50 L100 50 M50 0 L50 100" stroke="rgba(120,120,120,0.2)" stroke-width="1"/></svg>');
    background-size: 30px 30px;
    opacity: 0.3;
}

.register-container {
    width: 100%;
    max-width: 450px;
    margin: auto;
    position: relative;
    z-index: 1;
}

.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    background: rgba(35, 35, 35, 0.95);
    backdrop-filter: blur(10px);
    overflow: hidden;
}

.card-header {
    background: linear-gradient(to right, #2c2c2c, #1a1a1a);
    color: #fff;
    text-align: center;
    padding: 25px 20px;
    border-bottom: 2px solid #ff0000;
    position: relative;
}

.logo-placeholder {
    font-size: 28px;
    font-weight: bold;
    color: #fff;
    letter-spacing: 1px;
    text-transform: uppercase;
}

::placeholder{
    color:#fff !important
}

.logo-placeholder span {
    color: #ff0000;
}

.card-body {
    padding: 30px;
}

.form-control {
    background-color: #2c2c2c;
    border: 1px solid #444;
    color: #fff;
    padding: 12px 15px;
    border-radius: 8px;
}

.form-control:focus {
    background-color: #333;
    border-color: #ff0000;
    box-shadow: 0 0 0 0.25rem rgba(255, 0, 0, 0.25);
    color: #fff;
}

.input-group-text {
    background-color: #2c2c2c;
    border: 1px solid #444;
    color: #ff0000;
    padding: 12px 15px;
    border-radius: 8px;
}

.btn-register {
    background: linear-gradient(to right, #ff0000, #cc0000);
    border: none;
    padding: 12px;
    font-weight: 600;
    border-radius: 8px;
    width: 100%;
    margin-top: 10px;
    transition: all 0.3s;
}

.btn-register:hover {
    background: linear-gradient(to right, #cc0000, #990000);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 0, 0, 0.3);
}

.form-label {
    color: #ddd;
    font-weight: 500;
    margin-bottom: 8px;
}

.login-link {
    color: #ff0000;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.login-link:hover {
    color: #ff3333;
    text-decoration: underline;
}

.divider {
    display: flex;
    align-items: center;
    margin: 20px 0;
}

.divider::before, .divider::after {
    content: "";
    flex: 1;
    border-bottom: 1px solid #444;
}

.divider span {
    padding: 0 10px;
    color: #888;
    font-size: 14px;
}

/* Chrome, Safari, Edge, Opera */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Firefox */
input[type=number] {
    -moz-appearance: textfield;
}

/* Responsive adjustments */
@media (max-width: 576px) {
    .card-body {
        padding: 20px;
    }
    
    body {
        padding: 10px 0;
    }
}