/* Body background with subtle gradient animation */
body {
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, Helvetica, sans-serif;
    background-size: 100% 100%;
}
.bg-slideshow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -1;
    transition: opacity 1.5s ease-in-out;
    opacity: 1;
}
.card {
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.form-control {
    border-radius: 10px;
}

.form-control:focus {
    box-shadow: 0 0 8px rgba(37, 98, 155, 0.6);
    border-color: #25629b;
}
.btn-login {
    background-color: #25629b;
    color: gold;
    outline: none;
    padding: 10px 45px;
    border-radius: 12px;
    font-weight: bold;
    transition: all 0.3s ease;
}
.btn-login:hover {
    background-color: gold;
    color: #25629b;
    transform: scale(1.05);
}
.btn-primary:hover {
    background-color: #1e4a7a;
    border-color: #1e4a7a;
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(228, 224, 10, 0.2);
}
a {
    text-decoration: none;
    color: #25629b;
    transition: all 0.2s ease;
}
a:hover {
    text-decoration: underline;
    color: #1e4a7a;
}
.logo {
    max-width: 120px;
    height: auto;
    display: block;
    margin: 0 auto 20px auto;
    filter: invert(35%) sepia(70%) saturate(500%) hue-rotate(180deg);
    transition: transform 0.3s ease, filter 0.3s ease;
}
.logo:hover {
    transform: scale(1.1);
    filter: invert(40%) sepia(80%) saturate(550%) hue-rotate(180deg);
}