:root {
    --blue: #1E5DAC;
    --beige: #E8D3C1;
    --alley: #B7C5DA;
    --misty: #EAE2E4;
    --white: #ffffff;
}

html,
body {
    height: 100%;
}

body {
    background-image: url("../images/background/bg_admin.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    font-family: "Poppins", sans-serif;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(30, 93, 172, 0.45),
        rgba(183, 197, 218, 0.35)
    );
    z-index: -1;
}

.card {
    border-radius: 22px;
    background: rgba(234, 226, 228, 0.40);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.45);
    box-shadow: 0 25px 50px rgba(30, 93, 172, 0.35);
    padding: 35px 30px;
}

.logo-box {
    text-align: center;
    margin-bottom: 10px;
}

.logo-box img {
    width: 150px;
    filter: drop-shadow(0 6px 12px rgba(30, 93, 172, 0.5));
}

.card h3 {
    color: var(--blue);
    font-weight: 700;
    letter-spacing: 0.6px;
}

.form-label {
    color: #2d3a4a;
    font-weight: 500;
}

.form-control {
    border-radius: 12px;
    padding: 12px 14px;
    border: none;
    background: var(--white);
}

.form-control:focus {
    box-shadow: 0 0 0 3px rgba(30, 93, 172, 0.25);
}

.btn-login {
    background: linear-gradient(135deg, var(--blue), var(--alley));
    border: none;
    border-radius: 14px;
    padding: 12px;
    font-weight: 600;
    color: #fff;
    transition: 0.3s ease;
}

.btn-login:hover {
    background: linear-gradient(135deg, var(--alley), var(--blue));
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(30, 93, 172, 0.45);
}

.small a {
    color: var(--blue);
    text-decoration: none;
    transition: 0.2s;
}

.small a:hover {
    color: #000;
    font-weight: 600;
}