/* Premium Black Login Theme */
:root {
    --bg-color: #000000;
    --card-bg: rgba(20, 20, 20, 0.7);
    --text-color: #ffffff;
    --accent-color: #d4af37; /* Metallic Gold */
    --accent-hover: #f1c40f;
    --input-bg: rgba(255, 255, 255, 0.05);
    --input-border: rgba(255, 255, 255, 0.1);
    --input-focus: rgba(212, 175, 55, 0.5);
}

body {
    background: #000000 !important;
    background-image: 
        radial-gradient(circle at 50% 0%, #1a1a1a 0%, #000000 70%),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%231a1a1a' fill-opacity='0.4'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") !important;
    color: var(--text-color) !important;
    font-family: 'Inter', system-ui, -apple-system, sans-serif !important;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.body-sign {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    width: 100%;
}

.center-sign {
    background: var(--card-bg) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border: 1px solid rgba(255, 255, 255, 0.05) !important;
    border-radius: 20px !important;
    padding: 2rem !important;
    width: 100%;
    max-width: 450px !important;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7) !important;
    transform: translateY(0);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.card-header, .card-body, .card-footer {
    background: transparent !important;
    border: none !important;
}

.card-title {
    color: var(--accent-color) !important;
    font-size: 1.5rem !important;
    font-weight: 300 !important;
    letter-spacing: 2px !important;
    text-transform: uppercase !important;
    margin-bottom: 2rem !important;
}

.form-control {
    background: var(--input-bg) !important;
    border: 1px solid var(--input-border) !important;
    color: #fff !important;
    border-radius: 8px !important;
    padding: 1.2rem 1rem !important;
    transition: all 0.3s ease !important;
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.1) !important;
    border-color: var(--accent-color) !important;
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.1) !important;
}

.input-group-text {
    background: transparent !important;
    border: none !important;
    color: rgba(255, 255, 255, 0.5) !important;
}

.btn-primary {
    background: linear-gradient(135deg, #d4af37 0%, #a67c00 100%) !important;
    border: none !important;
    color: #000 !important;
    font-weight: 600 !important;
    letter-spacing: 1px !important;
    padding: 1rem !important;
    border-radius: 8px !important;
    text-transform: uppercase !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease !important;
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(212, 175, 55, 0.3) !important;
    background: linear-gradient(135deg, #f1c40f 0%, #c4950b 100%) !important;
}

.logo-login {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-login img {
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.2));
    max-height: 80px;
}

label {
    color: rgba(255, 255, 255, 0.7) !important;
    font-size: 0.9rem !important;
    margin-bottom: 0.5rem !important;
}

.text-muted {
    color: rgba(255, 255, 255, 0.3) !important;
}

/* Checkbox styling */
.checkbox-custom input[type="checkbox"] + label:before {
    border-color: rgba(255, 255, 255, 0.3) !important;
}

.checkbox-custom input[type="checkbox"]:checked + label:before {
    background: var(--accent-color) !important;
    border-color: var(--accent-color) !important;
}

/* Remove default massive 8 number */
.display-3.position-absolute {
    display: none !important;
}

/* Password Toggle Eye Button */
.btn-eye {
    background: transparent !important;
    border: none !important;
    color: rgba(255, 255, 255, 0.5) !important;
    cursor: pointer;
    padding: 0 15px !important;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s ease;
    height: 100%;
}

.btn-eye:hover {
    color: var(--accent-color) !important;
}

.btn-eye:focus {
    outline: none !important;
}

.input-group-append {
    display: flex;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-left: none;
    border-radius: 0 8px 8px 0 !important;
}

/* Fix input border radius when appended */
.form-control {
    border-right: none !important;
    border-radius: 8px 0 0 8px !important;
}

/* Adjust email input since it has no append */
#email.form-control {
    border-right: 1px solid var(--input-border) !important;
    border-radius: 0 8px 8px 0 !important;
}