/* Homepage-specific layout */
.pixel-navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0;
    position: relative;
    min-height: 64px;
    margin: 32px 32px 0 32px;
    background: #1f1f1f;
    padding: 0 32px;
    border-bottom: 1px solid #232323;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.home-btn {
    align-self: flex-start;
    margin-right: auto;
}
.pixel-home-icon, .about-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 20px;
    width: 20px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    color: #e0e0e0;
    transition: background 0.2s, color 0.2s;
    background: transparent;
    border: none;
    line-height: 1;
    padding: 0;
    margin: 0;
}
.pixel-home-icon:hover, .about-btn:hover, .about-btn:active {
    background: #232323;
    color: #2196f3;
}
.pixel-home-icon > .fa-house,
.about-btn > .fa-circle-info {
    font-size: inherit;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    margin: 0;
    padding: 0;
}
.pixel-title {
    flex: 1;
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin: 0;
    color: #fff;
    pointer-events: none;
}

/* About popout menu styles */
.about-popout {
    position: fixed;
    top: 96px;
    right: 48px;
    min-width: 320px;
    max-width: 90vw;
    background: #232323 !important;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.18);
    padding: 0;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px) scale(0.98);
    transition: opacity 0.2s, transform 0.2s;
}
.about-popout[aria-hidden="false"] {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
}
.about-popout-content {
    padding: 32px 28px 28px 28px;
    text-align: left;
    background: transparent;
    color: #e0e0e0;
}
.about-popout-content h2 {
    margin-top: 0;
    margin-bottom: 14px;
    font-size: 1.3rem;
    font-weight: 700;
    color: #2196f3;
}
.about-popout-content p {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.6;
    color: #e0e0e0;
}

/* Pixel UI themed grid for simulations */
.simulations-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin: 40px auto;
    max-width: 1200px;
    padding: 0 16px;
}

.simulation-item {
    background: #23272f;
    border: 2px solid #3a3f4b;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.10);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px 16px 20px 16px;
    min-height: 220px;
    transition: box-shadow 0.2s, border-color 0.2s;
}
.simulation-item:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.18);
    border-color: #5c6bc0;
}
.simulation-image-placeholder {
    width: 80px;
    height: 80px;
    background: #323846;
    border-radius: 12px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c7a89;
    font-size: 2.2em;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.simulation-content h3 {
    margin: 0 0 8px 0;
    font-size: 1.18em;
    color: #e3e6ee;
    font-weight: 600;
    letter-spacing: 0.01em;
}
.simulation-content p {
    margin: 0;
    color: #b0b6c3;
    font-size: 0.98em;
    line-height: 1.5;
    text-align: center;
}