#achievement-overlay {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(120%);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.4s ease;
    opacity: 0;
    pointer-events: none;
    z-index: 9999;
    min-width: 220px;
    max-width: 300px;
}

#achievement-overlay.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.ach-toast {
    background: rgba(20,20,20,0.92);
    border-radius: 12px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.6);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,0.08);
}

.ach-toast__medal {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    border: 2px solid rgba(255,255,255,0.15);
}

.ach-toast__medal--bronze   { background: rgba(205,127,50,0.25);  border-color: #CD7F32; }
.ach-toast__medal--silver   { background: rgba(192,192,192,0.25); border-color: #C0C0C0; }
.ach-toast__medal--gold     { background: rgba(255,215,0,0.25);   border-color: #FFD700; }
.ach-toast__medal--platinum { background: rgba(229,228,226,0.25); border-color: #E5E4E2; }

.ach-toast__body {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.ach-toast__title {
    font-size: 11px;
    color: rgba(255,255,255,0.5);
    font-family: ui-monospace, monospace;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.ach-toast__name {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ach-toast__sub {
    font-size: 11px;
    color: rgba(255,255,255,0.45);
    font-family: ui-monospace, monospace;
}