/* Aqua green theme with background image */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    height: 100%;
    margin: 0; #20px  auto;
    padding: 0;
    color: #333;
    background-color: #f0fff4;
    background-image: url('cirno.png'); /* Your background image */
    #background-size: cover;
    background-size: 70%;
    background-attachment: fixed; /* Optional: Parallax effect */
    background-repeat: no-repeat;
    background-position: center;
    #background-position: 50% 20%;
    background-attachment: fixed;
}

/* Semi-transparent white background for content areas */
.container {
    display: flex;
    flex-direction: column;
    min-height: 90vh; /* Full viewport height */
    max-width: 90%;
    margin: 2% auto;
    #margin-bottom: 5%;
    #padding: 0 20px;
    background-color: rgba(255, 255, 255, 0.0);
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

/* Aqua header */
nav {
    background-color: rgba(127, 255, 212, 0.7);
    #background-color: #7fffd4;
    padding: 10px 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.0);
    margin-top: 0;
    border-radius: 5px 5px 0 0;
}

nav a {
    color: #00695c;
    text-decoration: none;
    margin: 0 10px;
    font-weight: 500;
}

nav a:hover {
    color: #26a69a;
}

/* Main content */
main {
    flex: 1; /* Expands to fill available space */
    padding: 20px;
    margin: 0;
    background: rgba(255, 255, 255, 0.5); /* 70% opacity */
    border-radius: 0 0 5px 5px;
    box-shadow: none;
}

hr {
    border: 0;
    height: 1px;
    background: #b2dfdb;
    margin: 20px 0;
}

/* Aqua footer */
footer {
    background-color: rgba(127, 255, 212, 0.7);
    #background: #7fffd4;
    color: #00695c;
    font-size: 0.9em;
    padding: 20px;
    margin-bottom: 0;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 0 0 5px 5px;
}

footer a {
    color: #26a69a;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

footer p {
    margin: 5px 0;
}

small {
    display: block;
}

table {
    max-width: 75%;
    border-collapse: collapse;
    margin: 20px auto;
    font-size: 0.9em;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
    background-color: rgba(255, 255, 255, 0.7); /* 80% opacity */
}

table thead tr {
    background-color: rgba(127, 255, 212, 0.7);
    #background-color: #7fffd4;
    color: #00695c;
}

table th,
table td {
    padding: 10px 15px;
    text-align: left;
    border-bottom: 1px solid #b2dfdb;
}

table tr:nth-child(even) {
    background-color: rgba(240, 255, 244, 0.7); /* Light aqua */
}

table tr:hover {
    background-color: rgba(212, 255, 236, 0.7);
    #background-color: #d4ffec;
}

table thead tr:hover {
    background-color: rgba(127, 255, 212, 0.7) !important;
#    background-color: #7fffd4 !important;
    color: #00695c;
}