#settings-donate .donate-intro {
    font-size: 0.95rem;
    color: var(--text-muted-color);
    line-height: 1.8;
    text-align: center;
    margin: 0.5rem 0 2rem 0;
}

#donate-icon-selector {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.crypto-selector-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    border: 2px solid transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.crypto-selector-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.crypto-selector-icon:hover {
    transform: scale(1.1);
    border-color: var(--glow-color, var(--primary-color));
}

.crypto-selector-icon.active {
    border-color: var(--glow-color, var(--primary-color));
    box-shadow: 0 0 15px -2px var(--glow-color, var(--primary-color));
}

#donate-card-display-area {
    display: grid;
    perspective: 1000px;
}

.crypto-card {
    grid-area: 1 / 1;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out, border-color 0.4s ease, box-shadow 0.4s ease;
    pointer-events: none;
    transform-style: preserve-d;
    border: 1px solid var(--border-color);
    border-radius: 1rem;
}

.crypto-card.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    border-color: var(--glow-color, var(--border-color));
    box-shadow: 0 0 20px -8px var(--glow-color, transparent);
}

.card-inner {
    position: relative;
    width: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.crypto-card.is-flipped .card-inner {
    transform: rotateY(180deg);
}

.card-front, .card-back {
    position: absolute;
    width: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 1rem;
    background-color: rgba(255, 255, 255, 0.05);
    overflow: hidden;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}

.card-back {
    transform: rotateY(180deg);
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
}

body.light-theme .card-front,
body.light-theme .card-back {
    background-color: rgba(255, 255, 255, 0.7);
}

.card-front::before, .card-back::before {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: -1;
    border-radius: 1rem;
}

.crypto-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    cursor: pointer;
}

.crypto-icon {
    width: 48px;
    height: 48px;
}

.crypto-icon svg {
    color: var(--glow-color, var(--primary-color));
    transition: color 0.3s;
}

.crypto-info h5 {
    font-size: 1.2rem;
    font-weight: bold;
    margin: 0 0 0.25rem 0;
}

.crypto-info .crypto-ticker {
    font-size: 0.9rem;
    color: var(--text-muted-color);
}

.crypto-address-container {
    flex-grow: 1;
    cursor: pointer;
}

.crypto-address {
    font-family: monospace;
    font-size: 0.9rem;
    word-break: break-all;
    background-color: var(--bg-color);
    padding: 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    color: var(--text-muted-color);
    min-height: 70px;
    display: flex;
    align-items: center;
}

.crypto-note {
    font-size: 0.8rem;
    color: var(--warning-color);
    margin-top: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(245, 158, 11, 0.1);
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
}

.crypto-note svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.card-back-qr-code {
    padding: 1rem;
    background-color: white;
    border-radius: 0.75rem;
    display: inline-block;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    cursor: pointer;
}

.card-back-hint {
    font-size: 0.85rem;
    color: var(--text-muted-color);
    cursor: pointer;
}

.card-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.card-actions .btn {
    padding: 0.6rem;
    font-size: 0.9rem;
}

.card-actions .crypto-share-btn {
    grid-column: 1 / -1;
}

.crypto-copy-btn {
    background-color: var(--secondary-color);
}

.crypto-copy-btn:hover {
    filter: brightness(1.2);
}

.crypto-copy-btn .btn-content {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.crypto-copy-btn .icon-copy,
.crypto-copy-btn .icon-check {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.crypto-copy-btn .icon-check {
    position: absolute;
    transform: scale(0);
    opacity: 0;
    color: white;
}

.crypto-copy-btn.copied {
    background-color: var(--success-color) !important;
    color: white !important;
    filter: none;
}

.crypto-copy-btn.copied .icon-copy {
    transform: scale(0);
    opacity: 0;
}

.crypto-copy-btn.copied .icon-check {
    transform: scale(1);
    opacity: 1;
}

@media (max-width: 768px) {
    #donate-icon-selector {
        gap: 1rem;
    }
    .crypto-selector-icon {
        width: 48px;
        height: 48px;
    }
    .crypto-selector-icon svg {
        width: 28px;
        height: 28px;
    }
}