body {
    margin: 0;
    overflow: hidden;
    background-color: #0d0d0f;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
canvas {
    display: block;
}
/* The `hidden` attribute must win over the `display: flex` rules below. */
[hidden] {
    display: none !important;
}
#info {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    font-size: 12px;
    color: #ffffff;
    background: rgba(20, 20, 24, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 10px 12px;
    backdrop-filter: blur(6px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    pointer-events: none;
}
#info-stats {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 18px;
    row-gap: 4px;
}
.stat-label {
    color: #ffffff;
}
.stat-value {
    color: #ffffff;
    text-align: right;
    font-variant-numeric: tabular-nums;
}
#fps {
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: #ffffff;
    font-variant-numeric: tabular-nums;
}
#back {
    font: inherit;
    font-size: 12px;
    text-align: center;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 6px;
    padding: 3px 8px;
    cursor: pointer;
    pointer-events: auto;
    transition: border-color 0.15s ease, color 0.15s ease;
}
#back:hover {
    border-color: #4ea1ff;
    color: #4ea1ff;
}
/* Landing gallery overlay */
#gallery {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    padding: 48px 24px;
    box-sizing: border-box;
    overflow: auto;
    color: #8a8f9a;
    transition: background 0.15s ease;
}
#gallery.hidden {
    display: none;
}
#gallery.dragging {
    background: rgba(78, 161, 255, 0.06);
}
#gallery-title {
    font-size: 18px;
    color: #cfd2da;
}
#gallery-sections {
    display: flex;
    flex-direction: column;
    gap: 28px;
    width: 100%;
    max-width: 960px;
}
.gallery-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    max-width: 960px;
}
.section-title {
    font-size: 13px;
    letter-spacing: 0.08em;
    color: #8a8f9a;
}
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    width: 100%;
}
.card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 120px;
    padding: 24px;
    font: inherit;
    color: #cfd2da;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}
.card:hover {
    border-color: #4ea1ff;
    background: rgba(78, 161, 255, 0.08);
    transform: translateY(-2px);
}
.card-title {
    font-size: 16px;
}
.card-sub {
    font-size: 12px;
    color: #8a8f9a;
}
#drop-card {
    grid-column: 1 / -1;
    border-style: dashed;
    color: #8a8f9a;
}
#drop-card code {
    color: #cfd2da;
    background: rgba(255, 255, 255, 0.08);
    padding: 1px 6px;
    border-radius: 5px;
}
#gallery.dragging #drop-card {
    border-color: #4ea1ff;
    color: #4ea1ff;
    transform: scale(1.02);
}
/* Absolutely positioned so toggling it never reflows the centered gallery grid. */
#loading {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 240px;
}
#progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}
#progress-fill {
    width: 0;
    height: 100%;
    background: #4ea1ff;
    border-radius: 3px;
    transition: width 0.1s linear;
}
#progress-label {
    font-size: 13px;
    color: #cfd2da;
}