/* Modern Custom Alert System */
.custom-alert-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.custom-alert-overlay.active {
    opacity: 1;
    visibility: visible;
}

.custom-alert {
    background: white;
    border-radius: 16px;
    padding: 32px;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: scale(0.9) translateY(20px);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.custom-alert-overlay.active .custom-alert {
    transform: scale(1) translateY(0);
}

.custom-alert-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
}

.custom-alert-icon.success {
    background: linear-gradient(135deg, #10b981, #059669);
}

.custom-alert-icon.error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.custom-alert-icon.warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.custom-alert-icon.info {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.custom-alert-title {
    font-size: 20px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 12px;
    text-align: center;
}

.custom-alert-message {
    font-size: 15px;
    color: #6b7280;
    line-height: 1.6;
    text-align: center;
    margin-bottom: 24px;
}

.custom-alert-button {
    width: 100%;
    padding: 14px 24px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    color: white;
}

.custom-alert-button.success {
    background: linear-gradient(135deg, #10b981, #059669);
}

.custom-alert-button.error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.custom-alert-button.warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.custom-alert-button.info {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.custom-alert-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.custom-alert-button:active {
    transform: translateY(0);
}