body {
    font-family: Arial, sans-serif;
    margin: 40px;
    background-color: #f8f9fa;
}

header {
    margin-bottom: 24px;
}

.site-logo {
    width: 300px;
    height: 80px;
    object-fit: contain;
    display: block;
}

.intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 56px auto; /* Increased bottom margin for space */
}

.intro p {
    font-size: 1.15em;
    color: #222;
    margin: 0;
}

.group-box {
    max-width: 760px;
    margin: 0 auto 40px auto; /* Adds space above and below */
    background: #e9f3fa;
    border: 1px solid #0B65AF;
    border-radius: 10px;
    padding: 48px 24px 24px 24px;
    box-shadow: 0 4px 24px rgba(11, 101, 175, 0.06);
    position: relative;
}

.group-title {
    position: absolute;
    top: -22px;
    left: 32px;
    background: #0B65AF;
    color: #fff;
    font-size: 1.3em;
    font-weight: bold;
    padding: 6px 26px;
    border-radius: 8px 8px 0 0;
    letter-spacing: 2px;
    box-shadow: 0 2px 8px rgba(11, 101, 175, 0.10);
}

.downloads-section {
    margin-bottom: 36px;
}

/* Collapsible section styles, including custom triangle */
.downloads-collapsible {
    max-width: 700px;
    margin: 0 auto 32px auto;
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 2px 8px rgba(11, 101, 175, 0.06);
    padding: 0 0 8px 0;
    border: none;
}

/* Remove default marker */
.downloads-collapsible summary {
    list-style: none;
    cursor: pointer;
    position: relative;
    padding-left: 28px;
    font-size: 1.1em;
    font-weight: bold;
    background: #0B65AF;
    color: #fff;
    padding: 16px 24px 16px 36px;
    border-radius: 6px;
    user-select: none;
    transition: background 0.2s;
    margin-bottom: 0;
    outline: none;
}

.downloads-collapsible summary::-webkit-details-marker {
    display: none;
}

/* Custom triangle indicator */
.downloads-collapsible summary::before {
    content: "";
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%) rotate(0deg);
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 6px 4px 6px 4px;
    border-color: transparent transparent transparent #fff;
    transition: transform 0.25s ease;
}

.downloads-collapsible[open] > summary::before {
    transform: translateY(-50%) rotate(90deg);
}

.downloads-collapsible summary:hover,
.downloads-collapsible summary:focus {
    background: #094e85;
}

.downloads-collapsible ul.file-list {
    margin-top: 16px;
}

.file-list {
    list-style-type: none;
    padding: 0;
    max-width: 700px;
    margin: 0 auto;
}

.file-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 18px 0;
    padding: 12px 18px;
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(11, 101, 175, 0.06);
}

.file-info {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.file-name {
    font-size: 1.08em;
    color: #333;
}

.file-size {
    font-size: 0.9em;
    color: #666;
    font-style: italic;
}

.download-btn {
    display: inline-block;
    background-color: #0B65AF;
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    padding: 10px 24px;
    border-radius: 4px;
    border: none;
    transition: background 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 6px rgba(11, 101, 175, 0.08);
    cursor: pointer;
    letter-spacing: 1px;
}

.download-btn:hover,
.download-btn:focus {
    background-color: #094e85;
    box-shadow: 0 4px 12px rgba(11, 101, 175, 0.16);
    color: #fff;
}

/* Section 3 warning and checkbox */
.section-warning {
    margin: 16px 0 0 0;
    padding: 12px 16px;
    background: #fff3cd;
    border: 1px solid #ffeeba;
    border-radius: 5px;
    font-size: 1em;
    color: #856404;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.section-warning input[type="checkbox"] {
    margin-right: 10px;
    margin-top: 3px;
}

/* Responsive Vimeo video, 16:9, no whitespace above */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    margin: 0 0 24px 0; /* No top margin, only bottom */
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

@media (max-width: 600px) {
    .group-box {
        padding: 22px 6px 18px 6px;
    }
    .group-title {
        left: 12px;
        font-size: 1.1em;
        padding: 5px 16px;
    }
}
.previous-versions-box {
    background: #fffbe6;
    border: 1px solid #ffe58f;
    border-radius: 6px;
    padding: 14px 1px 10px 1px;
    margin-top: 18px;
    margin-bottom: 8px;
}

.previous-versions-title {
    color: #856404;
    font-weight: bold;
    margin-bottom: 10px;
	padding: 0px 0px 0px 18px;
    font-size: 1.05em;
}